CN211739739U

CN211739739U - A evaporation drying device for preparing lithium sulphur battery cathode material

Info

Publication number: CN211739739U
Application number: CN202020068124.4U
Authority: CN
Inventors: 张泽; 熊冬根; 杨震宇
Original assignee: Nanchang University
Current assignee: Nanchang University
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-10-23
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses an evaporation drying device for preparing lithium sulphur battery cathode material, including evaporimeter and condenser, the evaporimeter top has from left to right set gradually inlet pipe, rotating electrical machines and gas-supply pipe, it is rotatory that the rotating electrical machines drives the stirring rake, be provided with the air exhauster on the gas-supply pipe, gas-supply pipe other end fixed connection is in the left side of condenser, and the condenser intussuseption is filled with the wire net, and the bottom of evaporimeter is the toper structure, and the bottom is provided with row material pipe, arranges material pipe lower extreme threaded connection receiving flask, and the both ends of evaporimeter are provided with the supporting leg, install vibrating motor on the supporting leg, the evaporimeter bottom outside is provided with the heating piece. The utility model discloses collecting bottle and row material socle end threaded connection, easy to assemble and dismantlement are provided with vibrating motor on the supporting leg, and adnexed powder drops on the evaporimeter inner wall of being convenient for and the stirring rake, and the powder on the evaporimeter toper bottom collects to arranging the material pipe.

Description

A evaporation drying device for preparing lithium sulphur battery cathode material

Technical Field

The utility model belongs to the technical field of evaporation drying equipment technique and specifically relates to an evaporation drying device for preparing lithium sulphur battery cathode material.

Background

At present, lithium ion batteries are widely used in various portable electronic devices and electric vehicles, but with the continuous development of these devices, lithium ion batteries gradually fail to meet the development needs of the society. In order to further expand the application prospect of the lithium ion battery, batteries of various systems are paid attention by researchers. Among them, lithium sulfur batteries are increasingly receiving attention. The lithium-sulfur battery is a lithium battery with sulfur as a battery anode material and metal lithium as a battery cathode material. The elemental sulfur has rich reserves in the earth, and has the characteristics of low price, environmental friendliness and the like. The lithium-sulfur battery using sulfur as the anode material has higher material theoretical specific capacity and battery theoretical specific energy which respectively reach 1675mAh/g and 2600Wh/kg, which are almost 10 times of the theoretical specific capacity of the traditional anode material such as transition metal oxide and phosphate material; in addition, sulfur also has the advantages of low price, environmental friendliness and the like, in the preparation process of the lithium-sulfur battery cathode material, raw materials and deionized water need to be mixed to obtain hydrogel, then the hydrogel is evaporated and dried to obtain white powder, the drying and evaporating equipment in the prior art has the problem that the dried powder is inconvenient to take out from the equipment, and the powder is easy to adhere to the inner wall of the evaporator and a stirring paddle, so that the dried powder cannot be collected completely, in addition, in the evaporation process of water vapor, the water vapor is directly discharged to the external environment, on one hand, the water vapor can be liquefied into water drops and then returns to the evaporator, and on the other hand, the generation of a good laboratory environment is.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an evaporation drying device for preparing lithium sulphur battery cathode material to solve the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an evaporation drying device for preparing a lithium-sulfur battery cathode material comprises an evaporator and a condenser, wherein the top of the evaporator is sequentially provided with an inlet pipe, a rotating motor and a gas pipe from left to right, the top end of the inlet pipe is in threaded connection with a sealing cover, the output end of the rotating motor is fixedly connected with a connecting shaft, the bottom of the connecting shaft is provided with a counter bore with an O-shaped cross section, a stirring shaft is arranged in the counter bore, one side of the outer wall of the connecting shaft is provided with a bolt, the bolt penetrates through the connecting shaft and is in threaded connection with the stirring shaft, the stirring shaft is provided with a stirring paddle, the gas pipe is provided with an exhaust fan, the outer side of the gas pipe is wrapped with a heat preservation layer, one end of the gas pipe is communicated with the inside of the evaporator, the other end, condenser right side upper portion is provided with the blast pipe, the bottom of evaporimeter is the toper structure, and the evaporimeter bottom is provided with row material pipe, row material pipe is thick down thin, and the middle part is provided with the reducing pipe, arranges the material pipe upper end and is provided with the blow-off valve, arranges material pipe lower extreme threaded connection collecting flask, and the both ends of evaporimeter are provided with the supporting leg, install vibrating motor on the supporting leg, the evaporimeter bottom outside is provided with the heating piece, the heating piece is provided with the protection casing outward.

In this embodiment: the heat preservation comprises rock wool and veneer, and the rock wool wraps up in the gas-supply pipe, the veneer wraps up the rock wool.

In this embodiment: the stirring paddles are obliquely downward, five groups of the stirring paddles are arranged in quantity, and the stirring paddles are arranged at intervals along the axial direction of the stirring shaft.

Compared with the prior art, the beneficial effects of the utility model are that: (1) the bottom of the evaporator is arranged to be in a conical structure, the discharging pipe is arranged at the bottom end of the evaporator, so that dry powder can be conveniently discharged from the discharging pipe, the collecting bottle is in threaded connection with the bottom end of the discharging pipe and is convenient to mount and dismount, the vibration motor is arranged on the supporting leg, after the vibration motor is started, powder attached to the inner wall of the evaporator and the stirring paddle can fall off, and the powder on the conical bottom of the evaporator is collected to the discharging pipe, so that the collection of the dry powder is completed; (2) the in-process of continuous evaporation of water into vapor, during vapor was by the air exhauster suction condenser, vapor fully contacted with the wire net in the condenser, and most steam liquefaction water passes through drain pipe discharge condenser, and little part of vapor passes through blast pipe discharge condenser, avoids during vapor directly discharges the external environment, is unfavorable for creating good experimental environment.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

Reference numerals: the device comprises an evaporator 1, supporting legs 2, a discharge valve 3, a collecting bottle 4, a discharge pipe 5, a protective cover 6, a heating block 7, a vibration motor 8, a stirring shaft 9, a stirring paddle 10, a connecting shaft 11, a bolt 12, a steel wire mesh 13, a drain pipe 14, a drain valve 15, an exhaust pipe 16, an exhaust fan 17, a gas pipe 18, a heat preservation layer 19, a rotating motor 20, a sealing cover 21, a feeding pipe 22 and a condenser 23.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to fig. 1.

An evaporation drying device for preparing a lithium-sulfur battery anode material comprises an evaporator 1 and a condenser 23, wherein an inlet pipe 22, a rotating motor 20 and a gas pipe 18 are sequentially arranged at the top of the evaporator 1 from left to right, a sealing cover 21 is in threaded connection with the top end of the inlet pipe 22, materials and deionized water can be added through the inlet pipe 22, an output end of the rotating motor 20 is fixedly connected with a connecting shaft 11, a counter bore with an O-shaped cross section is formed in the bottom of the connecting shaft 11, a stirring shaft 9 is arranged in the counter bore, a bolt 12 is arranged on one side of the outer wall of the connecting shaft 11 and is in threaded connection with the stirring shaft 9 after penetrating through the connecting shaft 11, the stirring shaft 9 is convenient to install and disassemble through threaded connection, stirring paddles 10 are arranged on the stirring shaft 9, the stirring paddles 10 are obliquely downward and are, the uniform stirring of the solution in the vertical direction and the horizontal direction is realized, and the mixing effect is improved.

In this embodiment: the exhaust fan 17 is arranged on the gas pipe 18, the heat preservation layer 19 is wrapped on the outer side of the gas pipe 18, the heat preservation layer 19 is composed of rock wool and aluminum skin, the rock wool is wrapped on the gas pipe 18, the aluminum skin wraps the rock wool, the heat preservation effect is good, water vapor can be prevented from being liquefied into water drops in the gas pipe 18, the water drops can return to the evaporator 1 again, one end of the gas pipe 18 is communicated with the inside of the evaporator 1, the other end of the gas pipe is fixedly connected to the left side of the condenser 23, the condenser 23 is filled with the steel wire mesh 13, the bottom of the condenser 23 is provided with the drain pipe 14, the drain pipe 14 is provided with the drain valve 15, the upper portion of the right side of the condenser 23 is provided with the exhaust pipe 16, the water vapor is in full contact with the steel wire mesh 13 in the condenser 23, most of steam liquefied water is discharged out of the condenser 23, is not beneficial to creating a good experimental environment.

In this embodiment: the bottom of evaporimeter 1 is the toper structure, and 1 bottom of evaporimeter is provided with row material pipe 5, arrange thick down thin on the material pipe 5, the middle part is provided with the reducing pipe, arranges material pipe 5 upper end and is provided with relief valve 3, arranges 5 lower extreme threaded connection receiving flask 4 of material pipe, and receiving flask 4 and 5 bottom threaded connection of row material pipe make things convenient for receiving flask 4 to install and dismantle, and the both ends of evaporimeter 1 are provided with supporting leg 2, install vibrating motor 8 on the supporting leg 2, start vibrating motor 8 after, can be so that adnexed powder drops on 1 inner wall of evaporimeter and the stirring rake 10, and the powder on 1 cone bottom of evaporimeter collects to row material pipe 14, accomplishes the collection of dry powder. The 1 bottom outside of evaporimeter is provided with heating block 7, and heating block 7 is arranged in the mixed solution of heating drying evaporimeter 1, heating block 7 is provided with protection casing 6 outward, and protection casing 6 can avoid people to contact heating block 7 and cause the scald.

The utility model discloses a theory of operation: raw materials and deionized water are added through a feeding pipe 22, a rotating motor 20 is started, the stirring paddle 10 is driven to rotate, the stirring paddle 10 stirs mixed solution, hydrogel is prepared, a heating block 7 starts to work, in the heating process, solvent water is continuously evaporated into water vapor, after water is evaporated to dryness, white powder is obtained, the white powder is gathered at the bottom of an evaporator 1, the evaporator 1 is discharged through a discharge pipe 5 and enters a collecting bottle 4, in the process that water is continuously evaporated into water vapor, the water vapor is sucked into a condenser 23 through an exhaust fan 17, the water vapor is fully contacted with a steel wire mesh 13 in the condenser 23, most of steam is liquefied into water and is discharged out of the condenser 23 through a drain pipe 14, and a small part of the water vapor is discharged out of the condenser.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An evaporation drying device for preparing a lithium-sulfur battery cathode material is characterized in that: comprises an evaporator (1) and a condenser (23), wherein the top of the evaporator (1) is sequentially provided with an inlet pipe (22), a rotating motor (20) and an air pipe (18) from left to right, the top end of the inlet pipe (22) is in threaded connection with a sealing cover (21), the output end of the rotating motor (20) is fixedly connected with a connecting shaft (11), the bottom of the connecting shaft (11) is provided with a counter bore with an O-shaped cross section, a stirring shaft (9) is arranged in the counter bore, one side of the outer wall of the connecting shaft (11) is provided with a bolt (12), the bolt (12) penetrates through the connecting shaft (11) and is in threaded connection with the stirring shaft (9), the stirring shaft (9) is provided with a stirring paddle (10), the air pipe (18) is provided with an exhaust fan (17), the outer side of the air pipe (18) is wrapped with a heat, the other end is fixedly connected with the left side of a condenser (23), a steel wire mesh (13) is filled in the condenser (23), a drain pipe (14) is arranged at the bottom of the condenser (23), a drain valve (15) is arranged on the drain pipe (14), an exhaust pipe (16) is arranged at the upper part of the right side of the condenser (23), the bottom of the evaporator (1) is of a conical structure, a discharge pipe (5) is arranged at the bottom end of the evaporator (1), the material discharging pipe (5) is thick at the top and thin at the bottom, the middle part is provided with a reducing pipe, the upper end of the material discharging pipe (5) is provided with a material discharging valve (3), the lower end of the material discharging pipe (5) is in threaded connection with a collecting bottle (4), the two ends of the evaporator (1) are provided with supporting legs (2), install vibrating motor (8) on supporting leg (2), evaporimeter (1) bottom outside is provided with heating piece (7), heating piece (7) are provided with protection casing (6) outward.

2. The evaporation drying device for preparing the positive electrode material of the lithium-sulfur battery according to claim 1, wherein: the heat preservation layer (19) is composed of rock wool and aluminum skin, the rock wool is wrapped on the gas transmission pipe (18), and the aluminum skin wraps the rock wool.

3. The evaporation drying device for preparing the positive electrode material of the lithium-sulfur battery according to claim 1, wherein: the stirring paddles (10) are obliquely downward, five groups of stirring paddles are arranged in quantity, and the stirring paddles are arranged at intervals along the axial direction of the stirring shaft (9).