CN212842863U

CN212842863U - Battery roasting treatment device

Info

Publication number: CN212842863U
Application number: CN202021396769.7U
Authority: CN
Inventors: 孙万兴; 金光龙; 岳明权; 李亚辉; 田坤
Original assignee: Jilin Tieyang Shengri Cycle Technology Co ltd
Current assignee: Jilin Tieyang Shengri Cycle Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-03-30
Anticipated expiration: 2030-07-15

Abstract

The utility model provides a battery calcination processing apparatus, include: a roasting part, wherein the waste battery is conveyed and roasted through a closed type pipe; and a gas treatment unit for cooling and collecting dust of the gas generated in the baking unit. Adopt the utility model discloses, when carrying out calcination processing to the battery, can make the harmful gas composition minimizing of production to, there is the advantage that can obviously reduce the useless battery and disassemble processing time and cost of labor.

Description

Battery roasting treatment device

Technical Field

The utility model belongs to the technical field of waste battery handles, concretely relates to battery calcination processing apparatus.

Background

Recently, the use of a battery pack including a plurality of unit cells is increasing. The battery pack includes a plurality of battery modules electrically connected to each other, and the battery modules include a plurality of unit cells electrically connected to each other. The battery pack is widely used in large-capacitance Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV) of Xuyao, and the like.

Electric vehicles and hybrid electric vehicles are attracting attention as next-generation portable tools, and the production volume is expected to increase rapidly. Therefore, it is expected that the number of used battery packs, lithium secondary batteries produced by electric vehicles will also increase rapidly, but the current methods of treating used battery packs include battery discharging-pulverization-size separation-magnetic screening, etc., which require a lot of time and cost. Therefore, there is a need for developing a device that can recover valuable metals of a battery without the risk of explosion of the battery by efficient discharge and pulverization processes.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the present invention provides a battery baking processing apparatus, which aims to reduce the processing time and labor cost when the waste battery is disassembled, and can easily remove the components except the valuable metal of the battery through the simplified process, and can easily process the generated harmful gas.

In order to realize the technical purpose, the utility model adopts the following technical scheme: a battery baking treatment apparatus comprising: a roasting part, wherein the waste battery is conveyed and roasted through a closed type pipe; and a gas treatment unit for cooling and collecting dust of the gas generated in the baking unit.

Preferably, the firing section includes: a first pipe for conveying the battery downward, and having a first heating mechanism provided at one end thereof; and the second pipe is used for continuously conveying the batteries downwards and communicated with the first pipe.

Preferably, the first pipe and the second pipe are in the form of a rotary kiln inclined at 5-30 ° with respect to the ground.

Preferably, the first heating means heats the waste batteries by spraying flame in a direction of conveying the waste batteries or in a direction opposite to the conveying direction or by providing the flame on an outer peripheral surface of the first pipe.

Preferably, the outer periphery of the second pipe is provided with a cooling water spraying mechanism.

Preferably, the firing part further includes a first dust collecting part having a bag filter therein, the bag filter communicating with an end of the second pipe and performing dust collection processing on the gas discharged from the second pipe.

Preferably, the gas treatment section includes: a gas heat treatment part communicated with the upper part of the roasting part to realize heat treatment of the gas generated by the roasting part; a heat exchange unit for heat-exchanging and cooling the gas sent from the gas heat treatment unit; a cooling tower for circulating cooling water to the heat exchange unit; and a second dust collecting part for performing dust collecting treatment on the gas discharged by the heat exchange part.

Preferably, the gas heat treatment section includes: a third pipe communicated with the upper part of the roasting part for conveying the gas generated by the roasting part; and the second heating mechanism is arranged at one end of the third pipe and sprays flame to the conveying direction of the gas.

Preferably, the gas treatment part further includes an injection tower which is respectively communicated with the heat exchange part and the second dust collecting part, so that the gas exhausted from the heat exchange part is injected through the injection tower and then exhausted to the second dust collecting part.

Preferably, the gas treatment unit further includes a wet scrubber tower having a water spray mechanism for spraying water to the gas discharged from the second dust collection unit, and discharging the gas subjected to the water spray treatment into the atmosphere.

The technical effects of the utility model: adopt the utility model discloses, when carrying out calcination processing to the battery, can make the harmful gas composition minimizing of production to, there is the advantage that can obviously reduce the useless battery and disassemble processing time and cost of labor.

Drawings

FIG. 1 is a schematic diagram of a battery baking apparatus according to an embodiment of the present invention.

Fig. 2 is a plan view of a battery baking processing apparatus according to an embodiment of the present invention.

Fig. 3 is a front view of a gas treatment unit according to an embodiment of the present invention.

FIG. 4 is a front view of a roasting part according to an embodiment of the present invention.

FIG. 5 is a side view of a roasting part and a gas treatment part according to an embodiment of the present invention.

FIG. 6 is a plan view of a baking part according to an embodiment of the present invention.

In the figure, 100-roasting part, 110-closed type tube, 111-first tube, 112-second tube, 113-first heating mechanism, 114-conveyor, 115-conveying mechanism, 121-collecting part, 122-first dust collecting part, 200-gas processing part, 210-gas heat processing part, 211-third tube, 212-second heating mechanism, 220-heat exchanging part, 230-cooling tower, 240-spray tower, 250-second dust collecting part, 260-wet washing tower and 1000-battery roasting processing device.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The utility model provides a battery calcination processing apparatus 1000, include: a baking part 100 for conveying and baking the battery through a closed type pipe 110; and a gas treatment unit 200 for cooling and collecting dust of the gas generated in the baking unit.

Hereinafter, referring to fig. 1 to 6, a battery baking processing apparatus 1000 according to an aspect of the present invention will be described in terms of various configurations.

As shown in fig. 4, in the battery baking processing apparatus 1000 of the present invention, the baking part 100 may include: a first pipe 111 inclined downward to convey the battery and provided at one end with a first heating mechanism 113; and a second pipe 112 inclined downward and communicating with the first pipe. The first and second pipes may be in the form of a rotary kiln (rotary kiln) that is fired with rotation.

The inclination angles of the first and second pipes may be set to be inclined 10 ° to 35 ° with respect to the ground. In the range of the inclination angle, the transportation and the heat treatment of the battery can be easily performed.

As shown in fig. 4, the first heating means 113 is provided at one end of the first pipe 111, and sprays a flame in a direction in which the battery is lowered and conveyed or in a direction opposite to the conveying direction, or is provided outside the closed type pipe to perform heating by heat radiation, conduction, or the like. At this time, preferably, the heat treatment temperature is 400 ℃ to 1000 ℃. When the heat treatment temperature by the first heating means is less than 400 ℃, there is a possibility that the polymer component in the battery is not easily decomposed, and when the heat treatment temperature by the first heating means is more than 1000 ℃, there is a possibility that excessive energy is wasted in removing the polymer and the electrolyte of the battery, and there is a possibility that the valuable metal recovery rate is lowered.

The first heating means 113 may ignite by injecting fuel using one or more selected from the group consisting of diesel oil, refined oil, Liquefied Natural Gas (LNG), Liquefied Petroleum Gas (LPG), regenerated oil, and the like as fuel.

The first heating mechanism 113 may be provided on the outer peripheral surface of the first pipe 111 and heats the first pipe by heat radiation, conduction, or the like.

The first pipe 111 and the second pipe 112 may be closed pipes, and gas generated by the heat treatment of the battery by the first heating means 113 is supplied to a gas treatment part 200 described later, so that the harmful components are prevented from being exposed to the atmosphere.

The firing portion 100 may include: a battery hopper; and a conveyor 114 for receiving the supply of the battery from the battery hopper and feeding the battery to the baking section. The conveyor may comprise a sliding mechanism from the end of the conveyor towards the first tube so that the battery may be thrown towards the end of the first tube 111.

The second pipe 112 may be cooled by providing a mechanism (not shown) for spraying cooling water on the outer circumferential surface of the second pipe.

The firing part 100 may include at the end of the second tube 112: a collecting part 121 for receiving a substance that is heat-treated by the first heating means 113 and descends through the second pipe; and a delivery mechanism 115 for delivering the collected substance.

The baking part 100 may include a first dust collecting part 122, and the first dust collecting part 122 communicates with the end of the second pipe 112 and is used to perform a dust collecting process on a gas other than a substance descending the second pipe.

The first dust collecting part 122 may be provided with a bag filter (bag filter) to collect the gas.

In the battery baking processing apparatus 1000 of the present invention, the gas processing unit 200 cools and collects dust in the gas generated by the baking unit 100.

As shown in fig. 1, the gas treatment part 200 may include: a gas heat treatment part 210 communicating with an upper part of the firing part 100, specifically, an upper part of the first pipe 111, to heat-treat the gas of the firing part; a heat exchanger 220 for cooling the gas fed from the gas heat treatment unit; a cooling tower 230 for circulating cooling water to the heat exchange unit; and a second dust collecting part 250 for performing dust collecting process on the gas discharged through the heat exchanging part.

The gas heat treatment part 210 may include: a third pipe 211 communicating with an upper portion of the roasting part, specifically, with an upper portion of the first pipe 111, to convey gas of the roasting part; and a second heating means 212 provided at one end of the third pipe to spray a flame in a direction of the gas. The conveying gas may be heat-treated to a temperature of 700 ℃ to 900 ℃ by the second heating mechanism. The heat treatment is carried out at the temperature range described so that the polymer components in the gas are completely decomposed.

Preferably, the second heating mechanism 212 may ignite by injecting fuel using one or more selected from the group consisting of diesel oil, refined oil, liquefied natural gas, liquefied petroleum gas, regenerated oil, etc., as fuel, and may improve the thermal decomposition efficiency of the polymer.

In the heat exchanging part 220, heat exchange between the gas discharged from the gas heat treating part 210 and the cooling water inside the circulating heat exchanging part is achieved. By said heat exchange the gas temperature can be cooled to 150 to 250 ℃.

The gas treatment part 200 may include an injection tower 240, and the injection tower 240 communicates with the heat exchange part 220 and the second dust collection part 250, and injects the gas exhausted from the heat exchange part by an injection mechanism, and then exhausts the gas from the second dust collection part. Preferably, the spray tower satisfies a temperature range of 100 ℃ to 150 ℃ so that moisture is not condensed.

The cooling tower 230 may supply and circulate cooling water to the end discharged from the heat exchange unit 220 and the firing process of the firing unit 100. Specifically, the temperature of the material discharged from the second tube of the roasting part is cooled to 70 to 100 ℃ by supplying cooling water to the end of the second tube 112 of the roasting part. Accordingly, the gas discharged through the second pipe is cooled to the temperature range, so that dust can be easily collected by the first dust collecting part 122, and the material of the baking process discharged through the second pipe can be collected by the conveyor 115.

The second dust collecting part 250 may collect dust of the gas heat-exchanged in the heat exchanging part 220 by a bag filter (bag filter).

As shown in fig. 1, the gas treatment part 200 may include a wet scrubber 260, and the wet scrubber 260 may include a water spray mechanism for spraying water to the gas discharged from the second dust collection part 250, and may discharge the gas treated by the water spray to the atmosphere.

The wet scrubber tower 260 may be provided with a porous filter at a lower portion of the water spray mechanism, and a hydrogen ion concentration index (pH) of the water may be adjusted to 5 to 9 by a separately provided alkaline solution tank as the gas passing through the filter comes into contact with the water to achieve dust collection. Specifically, the alkaline solution may be a sodium hydroxide solution, and the removal of harmful components in the gas can be easily achieved within the range of the hydrogen ion concentration index (pH).

The bag filter can trap dust, soot, mercury, cadmium, copper, lead, and nickel components, the wet scrubber 260 can remove sulfur oxides (SOx), ammonia, hydrogen chloride, hydrocarbons, and formaldehyde, and the second heating means 212 can remove carbon monoxide and benzene.

That is, the battery baking apparatus 1000 according to the present invention carries out the baking process while transporting the waste batteries through the closed type pipe 110, collects the substances subjected to the baking process to recover the valuable metals, decomposes the harmful gas generated during the baking process through the first dust collecting unit 122, the second dust collecting unit 250, the second heating mechanism 212, the wet scrubber 260, and the like, and discharges the harmful gas into the atmosphere after the dust collecting process.

The present invention will be described in further detail below with reference to examples. However, the following examples are merely illustrative of the present invention, and the scope of the present invention is not limited thereto.

Example 1: waste battery roasting treatment device

A firing section 100 is prepared, the firing section 100 including: a first pipe 111 in which the waste battery of the electric vehicle is transported while being inclined at 5 ° to 15 ° with respect to the ground, and which is provided with a first heating means 113 that injects one or more selected from the group consisting of diesel oil, refined oil, liquefied natural gas, liquefied petroleum gas, regenerated oil, and the like as fuel at one end thereof in a direction opposite to the transport direction of the battery, and performs heat treatment at a temperature of 600 ℃ to 800 ℃; a second pipe 112 communicating with the first pipe and inclined at 5 ° to 15 ° with respect to the ground; a cooling water injection mechanism that injects cooling water to an outer peripheral surface of the second pipe; an electric vehicle waste battery hopper; a conveyor 114 for receiving a supply of the battery from the battery hopper and feeding the battery to the firing section; a collecting part 121 for collecting a material to be treated at an end of the second tube; a transport mechanism 115 for transporting the substance of the collection portion; and a first dust collecting part 122 having a bag filter which communicates with the end of the second pipe and performs a dust collecting process on the gas discharged from the second pipe.

A gas processing unit 200 is prepared, and the gas processing unit 200 includes: a third pipe 211 communicating with an upper portion of the first pipe 111 to transfer the gas of the roasting part 100; a second heating means 212 provided at one end of the third pipe and injecting a flame at a temperature of 600 to 800 ℃ in a direction of transportation of the gas, using one or more selected from the group consisting of diesel oil, refined oil, liquefied natural gas, liquefied petroleum gas, regenerated oil, and the like as a fuel; a heat exchanger 220 communicating with the third pipe and cooling the gas discharged from the third pipe; a cooling tower 230 for circulating cooling water supplied to the heat exchanger and the end of the second tube 112; an injection tower 240 communicating with the heat exchange unit and injecting and cooling the gas discharged from the heat exchange unit by an injection mechanism; a second dust collecting part 250 which is communicated with the spray tower and is provided with a bag filter for performing dust collection treatment on the gas discharged from the spray tower; and a wet scrubber tower 260 which is connected to the second dust collecting part, has a water spraying mechanism for spraying water to the gas discharged from the second dust collecting part, and discharges the gas subjected to the water spraying treatment into the atmosphere.

Experimental example 1: determination of emission concentration of air pollutants

The pollutant concentrations of the finally discharged gas after the baking treatment of the electric tool battery, the circular battery, the lithium polymer battery and the electric vehicle battery were measured by the battery baking treatment apparatus prepared in example 1, and the results thereof are shown in table 1.

TABLE 1

Referring to table 1, it was confirmed that most of the harmful components satisfied the emission standards in the case of the gas generated and collected after the firing treatment of the electric vehicle battery. Carbon disulfide, hydrogen sulfide, fluoride, hydrogen cyanide, bromine, styrene, phenol, vinyl chloride, arsenic, chromium, zinc, phosphorus, manganese, methylene chloride, and trichloroethylene were not detected in all types of cell firing treatments.

While the present invention has been described with reference to the specific embodiments thereof, it will be apparent that various modifications can be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims and their equivalents.

That is, it is to be understood that the embodiments described are illustrative and not restrictive in all respects, the scope of the invention being indicated by the claims hereinafter rather than by the detailed description, and that all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced therein.

Claims

1. A battery baking processing apparatus is characterized by comprising:

a roasting part (100) for conveying and roasting the waste batteries through a closed type pipe;

and a gas treatment unit (200) for cooling and collecting dust of the gas generated by the baking unit (100).

2. A battery baking treatment apparatus as defined in claim 1, wherein the baking section (100) includes:

a first pipe (111) for conveying the battery downward and provided with a first heating mechanism (113) at one end thereof;

a second pipe (112) for continuously conveying the battery downward and communicating with the first pipe (111).

3. The battery baking treatment apparatus as claimed in claim 2, wherein: the first pipe (111) and the second pipe (112) are in a rotary kiln shape inclined by 5-30 degrees relative to the ground.

4. A battery baking treatment apparatus as defined in claim 2 or 3, wherein: the first heating means heats the waste batteries by spraying a flame in the direction of conveying the waste batteries or in the direction opposite to the direction of conveying the waste batteries or by providing the flame on the outer peripheral surface of the first pipe (111).

5. The battery baking treatment apparatus as claimed in claim 2, wherein: the outer periphery of the second pipe (112) is provided with a cooling water spraying mechanism.

6. The battery baking treatment apparatus as claimed in claim 2, wherein: the roasting part (100) further comprises a first dust collecting part (122), wherein a bag filter is arranged in the first dust collecting part (122), the bag filter is communicated with the tail end of the second pipe (112), and the bag filter is used for collecting the dust of the gas exhausted by the second pipe (112).

7. A battery baking treatment apparatus as defined in claim 2, wherein said gas treatment section (200) comprises:

a gas heat treatment part (210) communicated with the upper part of the roasting part (100) to realize the heat treatment of the gas generated by the roasting part;

a heat exchange unit (220) that exchanges heat and cools the gas sent from the gas heat treatment unit (210);

a cooling tower (230) for circulating cooling water to the heat exchange unit (220);

and a second dust collecting unit (250) for performing a dust collecting process on the gas discharged from the heat exchanging unit (220).

8. The battery baking processing apparatus according to claim 7, wherein the gas heat treatment section (210) includes:

a third pipe (211) communicating with the upper part of the roasting part (100) and transporting the gas generated in the roasting part (100);

and a second heating means (212) which is provided at one end of the third pipe (211) and sprays flame in the gas feeding direction.

9. The battery baking processing apparatus according to claim 7, wherein the gas processing section (200) further comprises an injection tower (240), and the injection tower (240) is respectively communicated with the heat exchanging section (220) and the second dust collecting section (250), so that the gas exhausted from the heat exchanging section (220) is injected through the injection tower (240) and then exhausted to the second dust collecting section (250).

10. The battery baking treatment apparatus according to claim 7, 8 or 9, wherein the gas treatment section (200) further comprises a wet scrubber (260), the wet scrubber (260) has a water spray mechanism for spraying water to the gas discharged from the second dust collection section (250), and discharges the water-sprayed gas into the atmosphere.