CN218778064U

CN218778064U - Air-isolated fluorine-containing lithium salt electrolyte solid material charging barrel

Info

Publication number: CN218778064U
Application number: CN202221859877.2U
Authority: CN
Inventors: 蔡浩雷
Original assignee: Sanming Hexafluo Chemicals Co Ltd
Current assignee: Sanming Hexafluo Chemicals Co Ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-03-31
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses an air-isolated fluorine-containing lithium salt electrolyte solid material charging barrel, which comprises a barrel body, wherein a motor is arranged at the top axle center of the barrel body, the motor is connected with a stirring shaft, the stirring shaft is downwards inserted into the barrel body and is positioned at the axle center of the barrel body, the lower part of the barrel body is provided with a conical guide part, the bottom axle center of the guide part is provided with a material outlet, the top of the barrel body is eccentrically provided with a material inlet, the top of the barrel body is also provided with a gas port, a plurality of supporting legs are annularly distributed at the outer side of the barrel body, the lower end of the stirring shaft extends into the material outlet, and stirring slurry is arranged on the stirring shaft; the utility model overcomes when solid material is reinforced, in the bucket or prepare the cauldron charge door and block up the problem of not unloading.

Description

Air-isolated fluorine-containing lithium salt electrolyte solid material charging barrel

Technical Field

The utility model relates to an isolated air's fluorine-containing lithium salt electrolyte solid material charging bucket.

Background

Lithium ion battery electrolyte (for short, lithium battery electrolyte) is sensitive to oxygen and water, avoids contacting air in the lithium battery electrolyte production process as far as possible, if lithium battery electrolyte raw materials contact air, the electrolyte quality that can lead to formulating becomes poor, and some lithium battery electrolyte raw materials have certain toxicity in addition, therefore must whole journey be airtight in the lithium battery electrolyte raw materials use, avoids contacting air as far as possible. The liquid raw materials can be fed in a closed manner into the preparation kettle in a storage tank and pipeline mode or a liquid-containing stainless steel barrel and hose with a quick connector mode. For solid raw materials, sealed feeding in the preparation kettle can be realized by using a mode of a stainless steel barrel for containing solids and a quick-mounting flange. The package of the fluorine-containing lithium battery electrolyte solid raw material mainly comprises three forms of a plastic bottle, an aluminum foil bag and a stainless steel barrel. The stainless steel barrel has high purchase cost, the empty barrel of the used raw materials of the electrolyte factory can be reused for packaging the raw materials after returning to the raw material factory for reprocessing, and the plastic bottles and the aluminum foil bags have no problem, so that the solid raw materials of the electrolyte of the fluorine-containing lithium battery have common modes of using the plastic bottles and the aluminum foil bags except for a small amount of materials with large using amount.

Solid raw materials packaged in plastic bottles and aluminum foils cannot be added into a preparation kettle in an open manner in the air, and the common method in the electrolyte industry is to separately pack the solid raw materials packaged in the plastic bottles and the aluminum foils into an empty stainless steel barrel through a glove box isolated from the air, then connect the stainless steel barrel to a solid charging port on the preparation kettle through a fast-assembling flange, and add the solid raw materials into the preparation kettle. Because of the nature of the solid raw materials and the reasons of the manufacturing process of the manufacturers, the solid raw materials of part of manufacturers have poor fluidity, after being subpackaged in stainless steel barrels, the stainless steel barrels can be blocked and not discharged when being fed to a preparation kettle, the method for adding nitrogen into the barrels to blow and blow the barrels and knock and shake the stainless steel barrels has limited effect, the stainless steel barrels can only be detached from the preparation kettle, placed on the ground or on a barrel rolling machine to roll for a period of time, so that caked materials in the barrels are crushed, then the barrel is connected to a solid feeding port of the preparation kettle to be continuously fed, the materials in the barrels can be completely fed into the kettle after rolling once, and sometimes, the operations (the operations of installing the barrels on the preparation kettle for feeding, detaching the barrels from the kettle and weighing the materials without being added, pouring and rolling, and installing the barrels on the preparation kettle for feeding) are repeated. The back and forth operation wastes time and seriously affects the production efficiency.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an isolated air's fluorine-containing lithium salt electrolyte solid material charging bucket that can overcome material caking problem.

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides an isolated air's fluorine-containing lithium salt electrolyte solid material charging barrel, includes the staving the top axle center department of staving installs the motor, the motor is connected with a (mixing) shaft, the (mixing) shaft insert downwards in the staving, and be located the axle center department of staving, the lower part of staving is provided with conical guide part the bottom axle center department of guide part is provided with the material export the top off-centre of staving is provided with the material import the top of staving still is provided with the gas port the outside ring distribution of staving has many supporting legs, the lower extreme of (mixing) shaft extends to in the material export, be provided with the stirring thick liquid on the (mixing) shaft.

Preferably, the stirring paddle comprises a supporting cross rod, the supporting cross rod is vertically connected with the stirring shaft, a plurality of supporting cross rods are arranged in an up-down parallel mode, and a spiral belt is matched with the supporting cross rods through the plurality of supporting cross rods.

Preferably, the stirring shaft is provided with a screw blade at the axis of the spiral ribbon, the screw blade lifts the material upwards along with the forward rotation of the stirring shaft, and the screw blade conveys the material downwards along with the reverse rotation of the stirring shaft.

Preferably, the distance between the outer edge of the ribbon and the inner wall of the barrel body is 2-10mm.

The spiral belt can not rub the barrel wall, so that materials near the barrel wall can be stirred, and the phenomenon that the materials are adhered to the barrel wall to cause no discharging is avoided. The length of the screw blade is the same as that of the stirring paddle, so that materials in the barrel can be extruded downwards, the situation that the materials are accumulated at the bottom of the barrel and are connected with the solid port of the preparation kettle is avoided, and the problem that the solid materials are blocked in the barrel or the charging port of the preparation kettle and are not discharged when the solid materials are charged is solved.

Preferably, the barrel body adopts SUS304 or SUS316.

The utility model discloses a work flow does:

before the solid material charging barrel is used, ball valves are required to be installed on DN50/80/100 interfaces at the top and the bottom of the barrel, quick connectors are installed on the ball valves, and ball valves and PT male connectors are required to be installed on 1/4 inch PT screw heads at the top of the barrel. After the joint is installed, the solid material feeding barrel needs to be vacuumized to be more than minus 90kPa, then nitrogen is added to be more than 0kPa, the operation is repeated for more than three times, the oxygen content in the barrel is controlled to be less than or equal to 100ppm, the humidity is controlled to be less than or equal to 0.5 percent, and then the nitrogen is filled for maintaining the pressure to be more than 10 kPa.

The solid material charging barrel can not contact with air in the barrel in the use process, and nitrogen is filled for maintaining the pressure of more than 10kPa after the materials are subpackaged.

The solid material charging barrel is connected with an interface on a glove box through a quick-assembling interface on a DN50/80/100 ball valve at the top, and solid materials packaged in bottles or aluminum foil bags are charged into the barrel in the glove box. Some solid raw material incoming materials are stainless steel barrels with DN50/80/100 ball valves, and the solid raw material stainless steel barrels can also be connected to a quick-assembling interface on the DN50/80/100 ball valve at the top of the solid material charging barrel, and materials in the raw material barrels are charged into the solid material charging barrel for charging the preparation kettle

The solid material charging barrel is provided with an explosion-proof variable frequency motor, and the motor is connected with an on-site explosion-proof power cabinet through an explosion-proof plug. The explosion-proof power cabinet on site is provided with a button for adjusting the rotating speed of the motor. The screw rod paddle on the inverter motor cooperation stirring rake can control the speed of material whereabouts, and to the exothermic material when dissolving, control feed rate can avoid reinforced safety and the quality risk that leads to the too fast bringing of cauldron temperature rise at the excessive speed.

The utility model has the advantages that:

the utility model discloses increased the stirring rake on isolated air's solid material charging barrel, and the stirring rake is compound, and the interior material of bucket can be stirred to the spiral shell area on the stirring rake, avoids material and bucket wall adhesion. The screw blade on the stirring paddle can extrude the materials in the barrel downwards, so that the materials are prevented from being accumulated at the position where the barrel bottom is connected with the solid port of the preparation kettle. The problem that solid materials are not discharged when being fed in a barrel or a feeding port of a preparation kettle is solved.

The utility model discloses a screw rod paddle extrusion unloading can control the material and add the speed of preparing the cauldron, and the valve aperture has been little when the solid material charging barrel of the isolated air of existing usefulness is reinforced, and the material that mobility is poor blocks up easily and leads to not unloading in ball valve department, and the aperture is big, and a large amount of materials add easily in the twinkling of an eye and prepare the cauldron, and partial material is too late to dissolve and can sink to the cauldron bottom, is unfavorable for the stirring and mixes. The utility model discloses a speed that the material whereabouts can be controlled to the screw rod paddle, even solid material charging barrel charging valve is opened entirely, the interior material of bucket also can not be in the cauldron of adding in the twinkling of an eye, but falls into in the cauldron with more even speed. The blanking speed is related to the rotating speed of the stirring motor, and different feeding speeds can be realized by controlling the rotating speed of the motor.

The utility model discloses also can directly be used for solid raw materials's packing, raw materials manufacture factory uses this solid material charging barrel packing solid raw materials, and the delivery is used for the electrolyte producer, even there is the material caking in storing and the transportation, and smooth and easy unloading also can be realized to the unique stirring rake of this solid material charging barrel.

The utility model discloses also can be used for other trades to need the material that isolated air used.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic structural view of a screw blade;

FIG. 3 is a schematic view of the screw blade and the material outlet.

Detailed Description

All of the features disclosed in this specification, or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1, 2 and 3, the air-insulated fluorine-containing lithium salt electrolyte solid material charging barrel includes a barrel body 1, a motor 2, a stirring shaft 3, a support cross bar 4, a spiral ribbon 5, a screw blade 6, a support leg 7, a material inlet 8, a gas port 9 and a material outlet 10. Staving 1 is used for holding the material, motor 2 fixed mounting is above 1 tops of staving, the vertical setting of (mixing) shaft 3 is on the staving inside axis and pass the staving and link to each other with motor 2, support horizontal pole 4 is installed on (mixing) shaft 3, the quantity of support horizontal pole can suitably increase and reduce according to the staving height of solid material charging barrel, the support horizontal pole length of staving toper part is different with the support horizontal pole length of staving cylinder part, support horizontal pole 4 length and staving diameter phase-match, be a little less than the staving diameter, ribbon 5 is installed on supporting the horizontal pole, ribbon outer fringe and barrel wall distance are at 2-10mm, can not take place the friction with the barrel wall during rotation, screw rod paddle 6 is installed on (mixing) shaft 3, the upper end and the first support horizontal pole of screw rod paddle 6 flush, the lower extreme and the material export 10 of screw rod paddle 6 flush.

The material import 8 is used for the feeding, and a ball valve is installed to material import 8, installs the ready-packaged joint on the ball valve, can be connected with solid raw material barrel, also can be connected with the glove box of partial shipment solid additive. A1/4 inch quick connector is arranged at the gas port 9 and is used for vacuumizing or aerating the solid material charging barrel. A ball valve is installed at the material outlet 10, a quick coupler is installed on the ball valve and used for discharging, the ball valve can be connected with a charging opening of a preparation kettle and used for charging the preparation kettle, and the ball valve can also be connected with other solid buckets and used for sub-packaging.

The utility model discloses a work flow does: after a ball valve, a quick connector and a gas quick connector are installed on a solid material feeding barrel, the solid material feeding barrel is vacuumized to be more than-90 kPa, then nitrogen is added to be more than 0kPa, the operation is repeated for more than three times, the oxygen content in the barrel is controlled to be less than or equal to 100ppm, the humidity is controlled to be less than or equal to 0.5 percent, and then the nitrogen is filled for maintaining the pressure to be more than 10 kPa. Install the fast-assembling flange with the charging bucket, receive the solid partial shipment mouth on the glove box, with nitrogen gas replacement joint mouth back open the charging bucket and go up the ball valve, will bottled or aluminium foil bagged solids raw materials add solid material charging bucket in the glove box, reach the quantity that needs after, close the charging bucket and go up the ball valve, break off the connection of charging bucket and glove box. And filling nitrogen into the feeding barrel, and maintaining the pressure above 10 kPa.

Install solid material charging bucket on the reinforced interface of preparation cauldron solid additive through the ready-packaged joint on the material export 10 ball valves (if the supporting leg of charging bucket can be dismantled inadequately in the space on the preparation cauldron), open preparation cauldron solid charge door valve and the solid material charging bucket material export 10 after the interface is replaced with nitrogen gas and go up the valve, be connected to the explosion-proof power cabinet in workshop with solid material charging bucket agitator motor through explosion-proof power cord on, open the power cabinet switch, solid material charging bucket stirring rake begins to rotate, the paddle promotes in the bucket material gets into and prepares in the cauldron. And (3) observing from a preparation kettle sight glass, closing a power switch of a stirring motor of the solid material feeding barrel when the solid additive feeding port continuously does not drop the material, pulling down a power line, closing a valve of the solid material feeding port of the preparation kettle and a valve of a material outlet 10 of the solid material feeding barrel, disconnecting the connection between the solid material feeding barrel and the preparation kettle, and lifting the solid material feeding barrel from the preparation kettle. And filling nitrogen into the feeding barrel, and maintaining the pressure above 10 kPa.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an isolated air's fluorine-containing lithium salt electrolyte solid material charging barrel, includes the staving the top axle center department of staving installs the motor, the motor is connected with a (mixing) shaft, the (mixing) shaft insert downwards in the staving to be located the axle center department of staving, the lower part of staving is provided with conical guide part the bottom axle center department of guide part is provided with the material export the top off-centre of staving is provided with the material import the top of staving still is provided with the gas port the outside annular distribution of staving has many supporting legs, its characterized in that: the lower end of the stirring shaft extends into the material outlet, and stirring paddles are arranged on the stirring shaft.

2. The air insulated fluorine-containing lithium salt electrolyte solid material charging barrel according to claim 1, wherein: the stirring paddle comprises a supporting cross rod, the supporting cross rod is vertically connected with the stirring shaft, a plurality of supporting cross rods are arranged in parallel up and down, and a spiral ribbon is matched with the supporting cross rods.

3. The air insulated fluorine-containing lithium salt electrolyte solid material charging barrel according to claim 2, wherein: the stirring shaft is provided with screw blades at the axis of the spiral ribbon, the screw blades lift materials upwards along with the forward rotation of the stirring shaft, and the screw blades convey the materials downwards along with the reverse rotation of the stirring shaft.

4. The air insulated fluorine-containing lithium salt electrolyte solid material charging barrel according to claim 2, wherein: the distance between the outer edge of the helical band and the inner wall of the barrel body is 2-10mm.

5. The air insulated fluorine-containing lithium salt electrolyte solid material charging barrel according to claim 1, wherein: the barrel body adopts SUS304 or SUS316.