CN216377552U

CN216377552U - Lithium battery electrolyte closed heating volatilization device

Info

Publication number: CN216377552U
Application number: CN202123249614.8U
Authority: CN
Inventors: 巨博奥; 巨李冲; 巨锋; 巨利霞; 赵一沣
Original assignee: Henan Jufeng Environmental Protection Technology Co ltd
Current assignee: Henan Jufeng Environmental Protection Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-26
Anticipated expiration: 2031-12-22

Abstract

A closed heating and volatilizing device for lithium battery electrolyte relates to the technical field of lithium battery treatment, and comprises a first-stage closed spiral device and a second-stage closed spiral device, wherein a heating liquid is communicated in an interlayer between an inner shell and an outer shell; heating gas is introduced into the inner shell; the first-stage closed spiral device is obliquely arranged, the lower end part of the first-stage closed spiral device is provided with inlets for materials, heating liquid and heating gas, and the upper end part of the first-stage closed spiral device is provided with outlets for the materials and the heating liquid; the air collecting cover at the upper end part is connected with the filtering device through a pipeline and is discharged by the power provided by the fan; the heating liquid provides power and is heated by the liquid heater through the circulating pump, and the heating liquid is led to an inlet of the heating liquid through the liquid pipeline, passes through the interlayer, reaches an outlet and then is circulated through the liquid pipeline; the heating gas is heated by a heating device and is introduced into an inlet of the heating gas through a pipeline. The utility model has the advantages that: the electrolyte of the power lithium battery is thermally volatilized in an oxygen-free or oxygen-deficient state, so that the electrolyte is conveniently recycled, and the environmental pollution is effectively reduced.

Description

Lithium battery electrolyte closed heating volatilization device

Technical Field

The utility model relates to the technical field of garbage treatment, in particular to a device for treating a lithium battery, and particularly relates to a device for thermally volatilizing electrolyte of the lithium battery in an oxygen-free or oxygen-poor state.

Background

Waste disposal is an important problem in modern society. Among them, the treatment of a large number of waste lithium batteries is a problem to be faced, especially the treatment of lithium battery electrolytes. The electrolyte of lithium battery is a carrier for ion transmission in battery, and is prepared from high-purity organic solvent, electrolyte lithium salt, necessary additives and other raw materials according to a certain proportion under a certain condition. If the electrolyte of the lithium battery is discharged due to improper treatment, the environment is polluted and resources are wasted.

The existing waste lithium ion battery treatment process generally comprises the following steps: the battery is first burnt to eliminate organic matter, and after iron and copper are eliminated through screening, the residual powder is heated and dissolved in acid to extract cobalt oxide with organic solvent, which may be used as the material for making pigment and paint. In fact, because the electrolyte of the lithium battery contains water, the incineration is easy to generate pollution; the common water evaporation technology can not solve the problem of water content in the electrolyte well.

Based on this, the applicant has studied to solve this practical problem and developed a new type of "closed heating and volatilizing device for lithium battery electrolyte". The electrolyte of the power lithium battery is subjected to thermal volatilization in an oxygen-free or oxygen-deficient state, so that the recovered electrolyte can be removed well; it can also be used for removing water and volatile matter from other materials containing water or volatile liquid or solid.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a closed heating and volatilizing device for lithium battery electrolyte, which enables the lithium battery electrolyte to well volatilize water and conveniently recover the electrolyte.

The purpose of the utility model is realized by the following scheme:

lithium cell electrolyte seals heating volatilization device, including one-level closed screw means, its characterized in that: the primary enclosed spiral device comprises: the spiral shaft comprises a rotating shaft and spiral blades, and the shell comprises an inner shell and an outer shell; a heating liquid is filled in an interlayer between the inner shell and the outer shell; heating gas is introduced into the inner shell; the primary closed spiral device is obliquely arranged, a material inlet, a heating liquid inlet and a heating gas inlet are formed in the lower end part of the primary closed spiral device, and a material outlet and a heating liquid outlet are formed in the upper end part of the primary closed spiral device; the upper end part is also provided with a wind cover which is connected with a filtering device through a pipeline and is discharged by the power provided by a fan; the materials are guided into the material inlet by the air-closed feeding device and enter the inner shell; the heating liquid provides power through the circulating pump, is heated by the liquid heater, is led to the heating liquid inlet through the liquid pipeline, passes through the interlayer, reaches the heating liquid outlet, and then is circulated through the liquid pipeline; the heating gas is heated by a heating device and is introduced into a heating gas inlet through a pipeline.

Further:

the one-level seals the screw means and connects the second grade and seals the screw means, the second grade seals the screw means and includes: the spiral shaft comprises a rotating shaft and spiral blades, and the shell comprises an inner shell and an outer shell; a heating liquid is filled in an interlayer between the inner shell and the outer shell; heating gas is introduced into the inner shell; the secondary closed spiral device is obliquely arranged, a material inlet, a heating liquid inlet and a heating gas inlet are arranged at the lower end part of the secondary closed spiral device, and a material outlet and a heating liquid outlet are arranged at the upper end part of the secondary closed spiral device; the material outlet of the first-stage closed spiral device is communicated with the material inlet of the second-stage closed spiral device, and the heating liquid outlet of the first-stage closed spiral device is communicated with the heating liquid inlet of the second-stage closed spiral device; the heating liquid is powered by the circulating pump, is heated by the liquid heater, is respectively led to the heating liquid inlets of the primary closed spiral device and the secondary closed spiral device through the liquid pipelines, and flows to the heating liquid outlet through the interlayer, wherein the heating liquid outlet of the primary closed spiral device is connected with the heating liquid inlet of the secondary closed spiral device, and the heating liquid outlet of the secondary closed spiral device is circulated through the liquid pipelines; the heating gas is heated by the heating device and is respectively introduced into the inlets of the heating gas of the primary closed spiral device and the secondary closed spiral device through pipelines.

The filtering device comprises a cyclone collector and a pulse dust collector.

The first-stage closed screw device or/and the second-stage closed screw device are/is arranged on the support, and the support is provided with adjustable support legs.

The inlet of the heating gas of the secondary closed spiral device is arranged on the rotating shaft, the center of the rotating shaft is hollow, the heating gas is introduced into the rotating shaft, and the heating gas jet orifice is arranged in the middle of the rotating shaft.

The inlet of the heating gas of the primary closed screw device is arranged on the rotating shaft, the center of the rotating shaft is hollow, the heating gas is introduced into the rotating shaft, and the heating gas jet orifice is arranged at the front end part of the rotating shaft.

The shell and the interlayer are U-shaped, and a cover plate is arranged on the shell.

And a water supplementing device is arranged on the liquid pipeline.

The heating gas refers to nitrogen or carbon dioxide or inert gas.

The utility model has the beneficial effects that: the utility model can thermally volatilize the electrolyte of the power lithium battery in an oxygen-free or oxygen-deficient state, conveniently recover the electrolyte and effectively reduce the environmental pollution.

In order to make the technical solutions of the present invention better understood and make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in further detail with reference to examples below.

Drawings

FIG. 1 is a schematic structural diagram of the present invention, and FIG. 2 is a schematic sectional diagram of a closed heating volatilization spiral of the present invention.

In the figure: the device comprises an air-tight feeding spiral 1, a feeding hole 2, an air jet A3, a primary sealing spiral device 4, a wind-collecting cover 5, a motor speed reducer A6, a secondary sealing spiral device 7, an air jet B8, a volatile gas pipeline 9, a motor speed reducer B10, a cyclone collector 11, an air-tight discharger A12, a water supplementing tank 13, an air-tight discharger B14, an adjustable supporting leg 15, a support 16, a nitrogen making machine 17, a gas heating tank 18, a liquid circulating pump 19, a heater 20, a heating liquid pipeline 21, a pulse dust collector 22, a fan 23, a connecting pipe 24, a discharging hole 25, a feeding hole 26, a feeding motor 27, a spiral blade 28, a rotating shaft 29, an interlayer 30 and a cover plate 31.

Detailed Description

As shown in fig. 1-2, the lithium battery electrolyte sealing heating volatilization device, the air-tight feeding screw 1 is driven by a feeding motor 27 to rotate, the structure of the air-tight feeding screw 1 comprises a screw shaft and a shell, the screw shaft comprises a rotating shaft and a helical blade, the head end of the air-tight feeding screw 1 is provided with a feeding port 26, the tail end of the air-tight feeding screw is provided with a feeding port 2, and the feeding port 2 leads to a first-stage sealing spiral device 4.

The first-stage closed spiral device 4 is obliquely arranged (the inclination angle is 15-45 degrees), the inlet is low, and the outlet is high; the lower end part of the heating device is provided with a material inlet, namely a feed inlet 2, a heating liquid inlet and a heating gas inlet, and the upper end part of the heating device is provided with a material outlet, namely a discharge outlet 25 and a heating liquid outlet; the upper end of the primary closed screw device 4 is provided with a motor speed reducer A6, and the motor speed reducer A6 drives the primary closed screw device 4 to rotate; the primary closed screw device 4 is provided with an air jet A3; the tail end of the primary closed spiral device 4 is provided with a volatilization spiral wind-collecting cover 5, the volatilization spiral wind-collecting cover 5 guides gas to a cyclone collector 11 through a volatilization gas pipeline 9, and after the cyclone collector 11 operates, impurities are discharged through a closed air discharger A12; the purified gas is introduced into the pulse dust collector 22 through a pipe and discharged from the fan 23 through a pipe. The tail end discharge port 25 of the primary closed screw device 4 is communicated with the feeding port of the secondary closed screw device 7. A spiral support 16 is arranged below the primary sealing spiral device 4, and an adjusting support leg 15 is arranged below the spiral support.

The secondary closed spiral device 7 is obliquely arranged (the inclination angle is 15-45 degrees), the inlet is low, and the outlet is high; the lower end part of the heating device is provided with a material inlet, a heating liquid inlet and a heating gas inlet, and the upper end part of the heating device is provided with a material outlet and a heating liquid outlet; an air jet B8 is arranged in the middle of the secondary closed spiral device 7, the tail end of the secondary closed spiral device 7 is communicated with an air-closed discharger B14, and the secondary closed spiral device 7 is driven to rotate by a motor reducer B10; a spiral support 16 is arranged below the secondary closed spiral device 7, and an adjusting support leg 15 is arranged below the spiral support 16.

The nitrogen generator 17 feeds nitrogen gas (which may also be carbon dioxide gas or other inert gas) to the gas heating box 18 and is heated and fed via a heating gas line (indicated by a dashed line in fig. 1) to the heating gas inlet of the primary closed screw 4 and the heating gas inlet of the secondary closed screw 7, respectively.

A heating liquid pipeline 21 is arranged below the upper end of the first-stage closed spiral device 4, the heating liquid pipeline 21 is communicated with an inlet of an interlayer 30, an outlet of the interlayer 30 is communicated with an inlet of the interlayer 30 of the second-stage closed spiral device 7 through a communicating pipe 24, an outlet of the interlayer 30 is communicated with a water replenishing tank 13 through the heating liquid pipeline 21, the water replenishing tank 13 is communicated with a heater 20 and a liquid circulating pump 19 through the heating liquid pipeline 21, and the liquid circulating pump 19 is communicated with an inlet of the interlayer 30 below the lower end of the first-stage closed spiral device 4 through the heating liquid pipeline 21.

As shown in fig. 2, the primary closed screw device 4 and the secondary closed screw device 7 have the following structures: the rotating shaft 29 is distributed with helical blades 28, the helical direction of the helical blades 28 is the same, the helical cylinder is of a U-shaped structure, an interlayer 30 is arranged between the inner cylinder and the outer cylinder, and the upper part of the helical cylinder is provided with a cover plate 31. The rotating shaft 29 is a hollow structure for passing the heating gas.

Description of the principles of the utility model:

A. the broken back lithium cell material or other materials through close wind feeding spiral 1 (also can be with closing wind feeder) get into and close wind feeding screw, close wind feeding screw's structure and be: the pivot has helical blade, has one section at the tail end of pivot to have no helical blade, and helical blade when carrying the material tail end no helical blade department, the material is piled up and is formed the enclosure space, reaches the effect that closes the wind and separate oxygen and carry, makes the feeding guarantee volatilize the inside and outside air formation isolated state of device.

B. The material gets into one-level closed screw device 4 through feed inlet 2 in, the one-level closed screw device inside and outside casing and heating intermediate layer are the U type (see fig. 2), and this structure is difficult for the card material with circular cylinder relatively, and it is bigger to carry the material capacity, and the upper end is equipped with apron 31, can prevent volatile gas and heating gas leakage to have the heat preservation effect. 4 pivot 29 centers of one-level closed spiral device are hollow, can carry heated gas, heated gas's temperature is less than 150 (same down), spout through air jet A3, air jet A3 is located the front end of one-level closed spiral device 4 (at the middle part or at the rear end jet-propelled material contact time all can be shorter, can not reach the effect of fully heating), be equipped with helical blade 28 on the axle, heated gas can be for a relatively long time with the material in the abundant combination of transport roll in-process, reach the effect of fully heating. The interlayer 30 can convey heated liquid (which can be heated by electricity or hot gas), the temperature of the heated liquid is less than 140 (the same applies below), the materials can be fully heated outside the cylinder body, and the materials can be heated inside and outside simultaneously, so that the materials are fully heated and volatilized in an accelerated manner. The motor speed reducer 6 adjusts the corresponding rotating speed to heat and volatilize the materials to a certain degree, and the materials are discharged into the front end of the secondary closed spiral device 7 from the tail end of the primary closed spiral device 4.

C. The structure principle of the second-stage closed spiral device 7 is the same as that of the first-stage closed spiral device 4, the motor speed reducer 10 of the material in the second-stage closed spiral device 7 adjusts the corresponding rotating speed to heat and volatilize the material to a certain degree, the material is discharged through the closed air discharger 14 (the closed air discharger 14 is isolated from the outside air), the air nozzle B8 is positioned near the middle of the second-stage closed spiral device 7 (the air nozzle B8 is positioned at the front end, the heated nitrogen is quickly exhausted from the air collecting cover 5, the contact time of the heated nitrogen and the material is short at the rear end, the heat of the heated material is directly discharged through the closed air discharger 14, the heated gas near the middle can be sufficiently heated with the material for a long time), and the corresponding rotating speed of the motor speed reducer 10 is adjusted to heat and volatilize the material to a certain degree and the heated material is discharged through the closed air discharger 14. The support 16 of the first-stage closed screw device 4 and the second-stage closed screw device 7 is supported, and corresponding angles and heights can be adjusted according to the requirements of materials through the adjustable supporting legs 15, so that the materials are more sufficiently and cleanly volatilized.

D. The material is in one-level closed spiral device 4 and second grade closed spiral device 7, through the heating of inside gas heating and outside intermediate layer liquid, makes the gaseous volatile in the material volatilize fully, and the gaseous air that volatilizees is discharged through setting up in the fan housing 5 of one-level closed spiral device 4 terminal upper portion, and the collection filters in discharging cyclone collector 11. The volatile gases are discharged from the cyclone collector 11 into a pulse dust collector 22, filtered and discharged by the power of a fan 23, the trend of the volatile gases being indicated by hollow arrows in fig. 1. The cyclone collector 11 and the pulse dust collector 22 are used for separating the battery black powder taken away from the volatile gas, purifying the volatile gas and collecting the battery black powder.

E. The heated inert gas (or heated hot gas) passes through a nitrogen making machine 17 (inert gases such as nitrogen, helium, nitrogen dioxide and the like can be adopted) to make gas with corresponding pressure, the gas runs along a dotted line pipeline (shown in figure 1) shown by a thin solid line arrow (for distinguishing other pipelines) and is heated by a gas heating box 18, the gas is respectively filled into the spiral shafts 25 of the primary closed spiral device 4 and the secondary closed spiral device 7 through pipelines, the heated inert gas is sprayed out through a gas spraying port A3 and a gas spraying port B8, and the materials are fully heated in the stirring and conveying processes.

F. The liquid for heating is powered by a liquid circulating pump 19, the liquid is introduced into a liquid heater 20, the heated liquid enters the interlayer of the primary closed spiral device 4, and the liquid in the interlayer heats and volatilizes the materials in the spiral. The heating liquid enters the interlayer of the secondary closed spiral device 7 from the interlayer of the primary closed spiral device 4 to be heated. The heated liquid is discharged into the water replenishing tank 13, an automatic water replenishing device is arranged in the water replenishing tank 13, a water replenishing valve is automatically opened to replenish water according to the corresponding liquid level, and the liquid enters the liquid circulating pump 19 through the gravity drop, so that the effect of cyclic heating utilization is achieved. The bold arrows in fig. 1 indicate the course of the heated liquid.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. Lithium cell electrolyte seals heating volatilization device, including one-level closed screw means, its characterized in that: the primary enclosed spiral device comprises: the spiral shaft comprises a rotating shaft and spiral blades, and the shell comprises an inner shell and an outer shell; a heating liquid is filled in an interlayer between the inner shell and the outer shell; heating gas is introduced into the inner shell; the primary closed spiral device is obliquely arranged, a material inlet, a heating liquid inlet and a heating gas inlet are formed in the lower end part of the primary closed spiral device, and a material outlet and a heating liquid outlet are formed in the upper end part of the primary closed spiral device; the upper end part is also provided with a wind cover which is connected with a filtering device through a pipeline and is discharged by the power provided by a fan; the materials are guided into the material inlet by the air-closed feeding device and enter the inner shell; the heating liquid provides power through the circulating pump, is heated by the liquid heater, is led to the heating liquid inlet through the liquid pipeline, passes through the interlayer, reaches the heating liquid outlet, and then is circulated through the liquid pipeline; the heating gas is heated by a heating device and is introduced into a heating gas inlet through a pipeline.

2. The lithium battery electrolyte closed heating volatilization device as claimed in claim 1, characterized in that: the one-level seals the screw means and connects the second grade and seals the screw means, the second grade seals the screw means and includes: the spiral shaft comprises a rotating shaft and spiral blades, and the shell comprises an inner shell and an outer shell; a heating liquid is filled in an interlayer between the inner shell and the outer shell; heating gas is introduced into the inner shell; the secondary closed spiral device is obliquely arranged, a material inlet, a heating liquid inlet and a heating gas inlet are arranged at the lower end part of the secondary closed spiral device, and a material outlet and a heating liquid outlet are arranged at the upper end part of the secondary closed spiral device; the material outlet of the first-stage closed spiral device is communicated with the material inlet of the second-stage closed spiral device, and the heating liquid outlet of the first-stage closed spiral device is communicated with the heating liquid inlet of the second-stage closed spiral device; the heating liquid is powered by the circulating pump, is heated by the liquid heater, is respectively led to the heating liquid inlets of the primary closed spiral device and the secondary closed spiral device through the liquid pipelines, and flows to the heating liquid outlet through the interlayer, wherein the heating liquid outlet of the primary closed spiral device is connected with the heating liquid inlet of the secondary closed spiral device, and the heating liquid outlet of the secondary closed spiral device is circulated through the liquid pipelines; the heating gas is heated by the heating device and is respectively introduced into the inlets of the heating gas of the primary closed spiral device and the secondary closed spiral device through pipelines.

3. The lithium battery electrolyte closed heating volatilization device as claimed in claim 1, characterized in that: the filtering device comprises a cyclone collector and a pulse dust collector.

4. The lithium battery electrolyte closed heating volatilization device as claimed in claim 2, characterized in that: the first-stage closed screw device or/and the second-stage closed screw device are/is arranged on the support, and the support is provided with adjustable support legs.

5. The lithium battery electrolyte closed heating volatilization device as claimed in claim 2, characterized in that: the inlet of the heating gas of the secondary closed spiral device is arranged on the rotating shaft, the center of the rotating shaft is hollow, the heating gas is introduced into the rotating shaft, and the heating gas jet orifice is arranged in the middle of the rotating shaft.

6. The lithium battery electrolyte closed heating volatilization device as claimed in claim 1 or 2, characterized in that: the inlet of the heating gas of the primary closed screw device is arranged on the rotating shaft, the center of the rotating shaft is hollow, the heating gas is introduced into the rotating shaft, and the heating gas jet orifice is arranged at the front end part of the rotating shaft.

7. The lithium battery electrolyte closed heating volatilization device as claimed in claim 1 or 2, characterized in that: the shell and the interlayer are U-shaped, and a cover plate is arranged on the shell.

8. The lithium battery electrolyte closed heating volatilization device as claimed in claim 1 or 2, characterized in that: and a water supplementing device is arranged on the liquid pipeline.

9. The lithium battery electrolyte closed heating volatilization device as claimed in claim 1 or 2, characterized in that: the heating gas refers to nitrogen or carbon dioxide or inert gas.