CN217358083U

CN217358083U - Kiln gas supply device and ternary anode material sintering system

Info

Publication number: CN217358083U
Application number: CN202221380099.9U
Authority: CN
Inventors: 赵琴; 刘永洋; 刘俊峰; 王燕; 杨念东; 王政强; 张郑
Original assignee: Yibin Tianyuan Lithium Battery Industry Technology Co ltd; Yibin Libao New Materials Co Ltd
Current assignee: Yibin Tianyuan Lithium Battery Industry Technology Co ltd; Yibin Libao New Materials Co Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-02
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to a lithium electricity material preparation facilities field provides a kiln air feeder and ternary anode material sintering system. The kiln gas supply device comprises a first primary filter, a precision filter and a vortex fan which are sequentially arranged according to the air inlet direction, wherein the first primary filter and the precision filter are arranged at the front end of an air inlet of the vortex fan; the first primary filter is a filter with the filtering precision of 3-8 mu m; the precision filter is a filter with the filtering precision of 0.2-0.5 mu m. The ternary anode material sintering system comprises the kiln gas supply device and the kiln, wherein the kiln is communicated with an outlet of the vortex fan. The application provides a kiln air feeder and ternary cathode material sintering system, can no longer use the air of air supply station air engine export, but can directly the air that the delivery pressure is 0.02MPa, directly send into the kiln behind the filter, need not reduce its again, can show reduction in production cost.

Description

Kiln gas supply device and ternary anode material sintering system

Technical Field

The utility model relates to a lithium electricity material preparation facilities field particularly, relates to a kiln air feeder and ternary cathode material sintering system.

Background

In the lithium battery material industry, the quality of products is seriously affected by the metal foreign matters entering the products, and when the products containing the metal foreign matters are used for manufacturing batteries, the batteries can explode in the using process, so that the high requirement is provided for the gas supply of a kiln.

In the production process of the ternary anode material, air is used as atmosphere for sintering of a kiln, the using amount is large, most manufacturers use the air for the kiln and the air for production device instruments as an air supply system, and the pressure requirements are inconsistent, so that the air supply system can only supply air according to the high pressure requirement.

When air for a kiln sintering atmosphere and air for production device instruments are taken as an air supply system, the air pressure for the kiln only needs 0.01-0.02MPa, the air pressure for the instruments needs 0.6MPa, so that the outlet pressure of an air pressure station needs air of not less than 0.6MPa, the air entering the kiln needs to be decompressed from 0.6MPa to 0.01-0.02MPa, and the pressure causes energy waste.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a kiln gas supply unit and ternary cathode material sintering system aims at improving at least one kind of problem that the background art mentioned.

The embodiment of the utility model is realized like this:

in a first aspect, the utility model provides a kiln gas supply device, which comprises a first primary filter, a precision filter and a vortex fan which are arranged in sequence according to the air inlet direction, wherein the first primary filter and the precision filter are arranged at the front end of an air inlet of the vortex fan;

the first primary filter is a filter with the filtering precision of 3-8 mu m; the precision filter is a filter with the filtering precision of 0.2-0.5 mu m.

In an alternative embodiment, the precision filter is a HEPA baffle-free high efficiency air filter.

In an alternative embodiment, the first primary filter is a filter with a 5 μm filter fineness.

In an alternative embodiment, the precision filter is a filter with a filtration precision of 0.3 μm.

In an alternative embodiment, the first primary filter and the fine filter are integrated.

In an optional embodiment, the kiln gas supply device further comprises an air inlet pipe, the air inlet pipe is communicated with the vortex fan, and the first primary filter and the fine filter are arranged on the air inlet pipe.

In an optional embodiment, the kiln gas supply device further comprises a second primary filter, the second primary filter is arranged at the rear end of the gas outlet of the vortex fan, and the second primary filter is a filter with the filtering precision of 3-8 μm.

In an alternative embodiment, the second primary filter is a filter with a 5 μm filter fineness.

In an optional embodiment, the kiln gas supply device further comprises a gas outlet pipe, the gas outlet pipe is communicated with the gas outlet, and the second primary filter is arranged on the gas outlet pipe.

In a second aspect, the present invention provides a ternary anode material sintering system, comprising a kiln gas supply device and a kiln as in any one of the previous embodiments, wherein the kiln is communicated with an outlet of a vortex fan.

The embodiment of the utility model provides a beneficial effect is:

because the first primary filter and the precision filter are arranged at the front end of the air inlet of the vortex fan, the inlet air can be filtered to remove impurities in the air and ensure the quality of the ternary anode material obtained by sintering; therefore, the kiln air supply device can directly use the air in the environment to select the air pressure conveyed by the vortex fan to be 0.02MPa instead of using the air at the outlet of the air supply station air machine, directly sends the air to the kiln after passing through the filter, does not need to reduce the pressure of the air, and does not cause energy waste due to the reduction of the pressure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a kiln gas supply device provided by the embodiment of the utility model.

100-kiln gas supply device; 110-an integrated filter; 120-an air inlet pipe; 130-a vortex fan; 140-air outlet pipe; 150-a second primary filter; 160-blast gate.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides an air supply device 100 for a kiln, which includes a first primary filter, a precision filter and a cyclone fan 130 sequentially arranged in an air inlet direction, wherein the first primary filter and the precision filter are arranged at a front end of an air inlet of the cyclone fan 130. The first primary filter is a filter with the filtering precision of 3-8 mu m; the precision filter has a filtration precision of 0.2 to 0.5 μm.

The first primary filter can intercept dust with the particle size larger than 3-8 mu m, primary filtration of air is realized, the air after primary filtration reaches a precision filter to filter the dust with the particle size larger than 0.2-0.5 mu m, impurities in the air after secondary filtration are removed, the air sent into the kiln almost does not contain impurities, and the quality of the ternary cathode material obtained by sintering can be ensured; the application provides a kiln air feeder 100 is the kiln air feed, single vortex fan 130 corresponds single kiln, the air that air supply station air compressor machine export is no longer taken to the air that kiln atmosphere used, but the air in can direct service environment need not worry impurity problem in the air yet, the during operation, the air pressure of selecting vortex fan 130 to carry is 0.02MPa, directly send into the kiln behind the filter, need not decompress it again, can not lead to the energy waste because of the decompression again.

Therefore, the kiln gas supply device 100 provided by the application is used for supplying gas to a kiln, an original gas supply station is not used for supplying gas, and the production cost of the ternary anode material during sintering can be obviously reduced.

Preferably, the first primary filter and the fine filter are integrated to form the integrated filter 110, and the first primary filter and the fine filter are integrated to reduce the occupied area and simultaneously filter impurities in the air.

Preferably, the precision filter is a HEPA baffle-free high efficiency air filter.

The first primary filter has no high requirement, and can be used as long as the requirement of intercepting particles with the particle size of more than 3-8 μm can be met; the precision filter is too high, and the precision filter can meet the requirement of intercepting particles with the particle size of more than 0.2-0.5 mu m.

Further, the first primary filter is a filter having a filtering accuracy of 5 μm. The first primary filter intercepts particles with the particle size larger than 5 mu m, and the filtering efficiency is up to 90 percent.

Further, the precision filter is a filter having a filtration precision of 0.3 μm. The precise filter intercepts particles with the particle size of more than 0.3 mu m, and the filtering efficiency is as high as 99.99 percent.

Further, the kiln gas supply device 100 further comprises an air inlet pipe 120, the air inlet pipe 120 is communicated with the vortex fan 130, and the integrated filter 110 is disposed on the air inlet pipe 120.

Further, an air valve 160 is disposed on a section of the air inlet duct 120 between the integrated filter 110 and the cyclone fan 130 to control opening and closing of the air inlet duct 120.

Further, the kiln gas supply device 100 further comprises a second primary filter 150, the second primary filter 150 is disposed at the rear end of the gas outlet of the vortex fan 130, and the second primary filter 150 is a filter with a filtering precision of 3-8 μm.

Set up the second and just imitate filter 150 and filter the air-out once more, can avoid leading to during the metal foreign matter gets into the kiln atmosphere along with the air because of the damage of the inside machinery of fan itself, influence product quality.

It should be noted that, the primary filter is selected instead of the precision filter, and mainly to ensure the air inlet pressure, if the precision filter is added at the outlet of the vortex fan, because the filtering precision of the precision filter is higher, the resistance of the fan to output air is increased, and the atmospheric pressure entering the kiln is insufficient, thereby affecting the sintering quality of the kiln product.

It should be noted that the second primary filter is not too high, as long as the filter can meet the requirement of intercepting particles with a particle size of more than 3-8 μm.

Further, the second primary filter 150 is a filter having a filtering accuracy of 5 μm, and has a filtering efficiency of 90%.

Further, the kiln gas supply device 100 further comprises an air outlet pipe 140, the air outlet pipe 140 is communicated with the gas outlet, and the second primary filter is arranged on the air outlet pipe 140.

In summary, according to the kiln gas supply device 100 provided by the application, since the first primary filter and the precision filter are arranged at the front end of the gas inlet of the vortex fan 130, the inlet gas can be filtered to remove impurities in the air, and the quality of the sintered ternary cathode material is ensured; therefore, the kiln air supply device 100 provided by the application can directly use the air in the environment to select the air pressure transmitted by the vortex fan 130 to be 0.02MPa instead of using the air at the outlet of the air supply station air machine, and directly send the air to the kiln after passing through the filter without reducing the pressure, so that the energy waste caused by the pressure reduction can be avoided.

After the kiln gas supply device provided by the application is implemented, the output amount of 0.6MPa air of the gas supply station is reduced, the air compressor of the gas supply station is a high-energy-consumption device, the output amount of the air is reduced, the electric load is further reduced, and meanwhile, the energy waste caused by the fact that the high pressure of the outlet of the air compressor of the gas supply station is reduced to the low pressure is avoided. Calculated according to a ternary cathode material device with the capacity of 2 ten thousand tons, the technical effects before and after the transformation are as follows:

before transformation: the amount of air supplied to the kiln from the air supply station is about 18000Nm calculated from the full capacity of the apparatus ³ And 2 centrifugal air compressors are required to be started, and 2000KW is consumed in each hour. The power consumption is 1600 thousands KW each year, and the cost of converted electricity consumption is 800 thousands.

After transformation: according to the full-production calculation of the device, 36 kilns are provided, each kiln is provided with a vortex fan, the power consumption of the vortex fan is 20KW per hour, and the power consumption of the vortex fans is 720KW for 36 kilns. The annual power consumption is 576 ten thousand KW, and the cost of converted electricity consumption is 288 ten thousand.

512 ten thousand yuan can be saved each year after the transformation.

The embodiment of the application also provides a ternary cathode material sintering system, which comprises the kiln gas supply device 100 and the kiln provided by the embodiment of the application, wherein the kiln is communicated with the outlet of the vortex fan 130 through the air outlet pipe 140.

The ternary cathode material sintering system provided by the embodiment of the application comprises the kiln gas supply device 100 provided by the embodiment of the application, so that the ternary cathode material sintering system can realize low energy consumption on the premise of ensuring the quality of the ternary cathode material obtained by sintering.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The kiln gas supply device is characterized by comprising a first primary filter, a precision filter and a vortex fan which are sequentially arranged according to the air inlet direction, wherein the first primary filter and the precision filter are arranged at the front end of an air inlet of the vortex fan;

2. The kiln air supply device according to claim 1, wherein the precision filter is a HEPA baffle-free high efficiency air filter.

3. The furnace gas supply apparatus according to claim 1, wherein the first primary filter is a filter with a filtering precision of 5 μm.

4. The furnace gas supply apparatus according to claim 1, wherein the fine filter is a filter with a filtering precision of 0.3 μm.

5. The furnace gas supply apparatus of claim 1, wherein the first primary filter and the fine filter are integrated.

6. The furnace gas supply device according to claim 5, further comprising an air inlet pipe, wherein the air inlet pipe is communicated with the vortex fan, and the first primary filter and the secondary filter are disposed on the air inlet pipe.

7. The furnace gas supply device according to claim 1, further comprising a second primary filter, wherein the second primary filter is arranged at the rear end of the gas outlet of the vortex fan, and the second primary filter has a filtering precision of 3-8 μm.

8. The furnace gas supply apparatus according to claim 7, wherein the second primary filter is a filter with a filtering precision of 5 μm.

9. The kiln gas supply device according to claim 7 or 8, further comprising a gas outlet pipe, wherein the gas outlet pipe is communicated with the gas outlet, and the second primary filter is arranged on the gas outlet pipe.

10. The ternary cathode material sintering system is characterized by comprising the kiln gas supply device and the kiln as claimed in any one of claims 1-9, wherein the kiln is communicated with an outlet of the vortex fan.