CN216499290U - Even feed divider of coprecipitation reation kettle - Google Patents

Abstract

The utility model discloses a uniform material distributing device for a coprecipitation reaction kettle, which comprises a kettle body, an air inlet pipe and a motor, wherein the air inlet pipe is positioned on one side of the top of the kettle body, the motor is positioned in the middle of the top of the kettle body, the kettle body comprises an installing head arranged in the middle of the top of the kettle body, a sealing bearing and a supporting frame are arranged in the middle of the inside of the installing head, the supporting frame is arranged at the bottom of the kettle body, and a pressure control valve is arranged in the air inlet pipe. The pressure control valve monitors the pressure in the kettle body and controls the gas inlet amount, the first ball valve and the second ball valve are in a closed state in the coprecipitation reaction process, the pressure control valve maintains reasonable pressure in the kettle body, the rotating shaft is driven to rotate by the motor, the rotating shaft drives the stirring rod to rotate, the rotating stirring rod stirs the inside of the kettle body, and when the reaction is carried out to a certain degree, the stirring rotating speed can be properly reduced but cannot be stopped in order to prevent natural settling reaction of particles.

Description

Even feed divider of coprecipitation reation kettle

Technical Field

The utility model relates to the technical field of coprecipitation reaction kettles, in particular to a uniform material distribution device for a coprecipitation reaction kettle.

Background

The lithium ion battery positive electrode material comprises lithium cobaltate, lithium iron phosphate, lithium nickel cobaltate, lithium nickel cobalt manganese oxide and the like, wherein the lithium nickel cobalt manganese oxide (ternary) is gradually used in the field of power batteries by virtue of the characteristics of high capacity and the like, the lithium nickel cobalt manganese oxide is a positive electrode material formed by mixing and sintering a ternary precursor of nickel cobalt manganese and a lithium source, the performance of the ternary precursor is a limiting factor influencing the positive electrode material, the preparation of the ternary precursor by coprecipitation reaction is widely applied, the preparation method mainly comprises the steps of taking feed liquid as a precipitator in sodium hydroxide and taking ammonia water as a complexing agent, preparing the feed liquid by controlling certain pH, ammonium radical concentration, temperature and the like, and a reaction kettle is main equipment for coprecipitation reaction and mainly comprises a stirring device, a feeding device and the like.

In the material distribution process of the reaction kettle, most of the existing methods rely on human judgment in the process of pumping the precursor liquid by using a pump, so that the distribution uniformity is difficult to ensure, manual guard is needed, and the time is wasted; after the reaction kettle stops stirring, precursor particles can naturally settle under the action of gravity, and initial solid contents in the two reaction kettles after material distribution can be different due to simple extraction, so that the consistency of products is influenced, and the practicability is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a uniform material distributing device for a coprecipitation reaction kettle, which is used for solving the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an even feed divider of coprecipitation reation kettle, includes the cauldron body, is located the intake pipe of cauldron body top one side and is located the motor of cauldron body top intermediate position department, the cauldron body includes:

the mounting head is arranged at the middle position of the top of the kettle body, and a sealing bearing is arranged at the middle position inside the mounting head; and

the support frame is arranged at the bottom of the kettle body.

Preferably, the internally mounted of intake pipe has the pressure control valve, the intermediate position department of cauldron body bottom is provided with row material pipe, arrange the inside bottom of material pipe and be provided with first ball valve, it is provided with the conveying pipe to arrange the top that the material outside of managing is located first ball valve, the conveying pipe is kept away from the internally mounted of arranging material pipe one end has the second ball valve, the conveying pipe is close to the one end of second ball valve is connected with the connecting pipe, the inner wall of the cauldron body is provided with level sensor.

Preferably, the bottom of the internal portion of cauldron is provided with spacing, the output of motor is connected with the pivot that runs through to spacing inside, the outside that the pivot is located the internal portion one end of cauldron is provided with the multiunit puddler.

Preferably, the top of installation head is provided with the mounting panel, the motor passes through mounting panel and installation head fixed connection, the inside of installation head is provided with the mounting groove, sealed bearing passes through the mounting groove and can dismantle with the installation head and be connected, the bottom of support frame all is provided with the slipmat.

Preferably, the intake pipe is connected with cauldron body welded connection, and the intake pipe is kept away from the one end of the cauldron body is provided with flange, arrange the material pipe and cauldron body welded connection, conveying pipe and row material pipe welded connection, the conveying pipe is linked together through arranging the material pipe with the cauldron body.

Preferably, the feeding pipe is close to one end of the second ball valve and is provided with a connecting flange, the connecting pipe is detachably connected with the feeding pipe through the connecting flange, a fixing groove is formed in the kettle body, and the liquid level sensor is detachably connected with the kettle body through the fixing groove.

Preferably, the outside of spacing is provided with the multiunit dead lever, spacing passes through dead lever and cauldron body fixed connection, the inside intermediate position department of spacing is provided with the rotation hole, and the pivot is kept away from the one end of motor runs through to spacing inside, the pivot is connected with spacing rotation through rotating the hole.

Preferably, the pivot is close to inside one end of motor runs through to sealed bearing, the pivot passes through sealed bearing and installs the head rotation and be connected, puddler and pivot welded connection, the puddler rotates through pivot and motor to be connected.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model monitors the pressure in the kettle body and controls the gas inlet amount through the pressure control valve, during the coprecipitation reaction, the first ball valve and the second ball valve are in a closed state, the pressure control valve maintains the reasonable pressure in the kettle body, the rotating shaft is driven to rotate through the motor, the rotating shaft drives the stirring rod to rotate, the rotating stirring rod stirs the interior of the kettle body, when the reaction is carried out to a certain degree, the stirring rotating speed can be properly reduced but can not be stopped in order to prevent the natural sedimentation reaction of particles, at the moment, the liquid level in the kettle body is observed through the liquid level sensor, under the condition that the size of the reaction kettle is known, the volume of half of the material liquid required to be separated in the reaction process can be calculated, meanwhile, the pressure control valve controls the nitrogen gas entering the volume of the half of the material liquid, the pressure in the material kettle is positive pressure, and the tightness of the first ball valve and the second ball valve is checked, the inspection finishes the back and opens two sets of reation kettle's second ball valve, feed liquid in this reation kettle can get into in another reation kettle through the connecting pipe, the reation kettle who accepts the feed liquid is full of nitrogen gas, slowly open another group reation kettle's pressure control valve, the feed liquid will get into inside another group reation kettle, when two reation kettle internal gas pressure are unanimous, because the pressure balance effect, can regard the interior material of two kettles to divide unanimously, the liquid level in the cauldron body is observed through level sensor again this moment, verify the homogeneity of dividing the material.

Drawings

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a front view of the present invention.

In the figure: 1. a kettle body; 101. a mounting head; 102. sealing the bearing; 103. a support frame; 2. an air inlet pipe; 201. a pressure control valve; 202. a discharge pipe; 203. a first ball valve; 204. a feed pipe; 205. a second ball valve; 206. a connecting pipe; 207. a liquid level sensor; 3. a motor; 301. a limiting frame; 302. a rotating shaft; 303. a stirring rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of a uniform material distributor for a coprecipitation reactor according to the present invention includes: the utility model provides an even feed divider of coprecipitation reation kettle, includes the cauldron body 1, is located the intake pipe 2 of 1 top one side of the cauldron body and is located the motor 3 of 1 top intermediate position department of the cauldron body, and the cauldron body 1 includes:

the mounting head 101 is arranged at the middle position of the top of the kettle body 1, and a sealing bearing 102 is arranged at the middle position inside the mounting head 101; and

a supporting frame 103 arranged at the bottom of the kettle body 1.

Please refer to fig. 1 and fig. 3, a pressure control valve 201 is installed inside the inlet pipe 2, a discharging pipe 202 is installed at the middle position of the bottom of the kettle body 1, a first ball valve 203 is installed at the bottom end inside the discharging pipe 202, a feeding pipe 204 is installed above the first ball valve 203 at the outer side of the discharging pipe 202, a second ball valve 205 is installed inside the feeding pipe 204 far away from one end of the discharging pipe 202, a connecting pipe 206 is connected to one end of the feeding pipe 204 near the second ball valve 205, and a liquid level sensor 207 is installed on the inner wall of the kettle body 1 to monitor the liquid level inside the kettle body 1.

Please refer to fig. 1 and fig. 2, a limiting frame 301 is disposed at the bottom end inside the kettle 1, the output end of the motor 3 is connected to a rotating shaft 302 penetrating the limiting frame 301, the rotating shaft 302 is more stable to rotate through the limiting frame 301, and a plurality of sets of stirring rods 303 are disposed at the outer side of the rotating shaft 302 at one end inside the kettle 1 to stir the reaction solution.

Please refer to fig. 1 and fig. 3, a mounting plate is disposed on the top of the mounting head 101, the motor 3 is fixedly connected to the mounting head 101 through the mounting plate, the motor 3 is fixedly mounted, a mounting groove is disposed inside the mounting head 101, the sealing bearing 102 is detachably connected to the mounting head 101 through the mounting groove, and the bottom of the supporting frame 103 is provided with a non-slip pad, so that the device is more stable.

Please refer to fig. 1 and fig. 3, the gas inlet pipe 2 is welded to the kettle 1, and a connecting flange is disposed at one end of the gas inlet pipe 2 away from the kettle 1, the material outlet pipe 202 is welded to the kettle 1, the material feeding pipe 204 is welded to the material outlet pipe 202, and the material feeding pipe 204 is communicated with the kettle 1 through the material outlet pipe 202, so as to distribute the solution and improve the distribution effect of the device.

Please refer to fig. 1 and fig. 3, a connecting flange is disposed at one end of the feeding pipe 204 close to the second ball valve 205, the connecting pipe 206 is detachably connected with the feeding pipe 204 through the connecting flange, so as to facilitate the disassembly and assembly of the connecting pipe 206, and the device has a better use effect, a fixing groove is disposed inside the kettle body 1, and the liquid level sensor 207 is detachably connected with the kettle body 1 through the fixing groove.

Please refer to fig. 1 and fig. 2, a plurality of sets of fixing rods are disposed outside the limiting frame 301, the limiting frame 301 is fixedly connected to the kettle body 1 through the fixing rods, the limiting frame 301 is fixed, a rotation hole is disposed at a middle position inside the limiting frame 301, one end of the rotating shaft 302 far away from the motor 3 penetrates through the limiting frame 301, and the rotating shaft 302 is rotatably connected to the limiting frame 301 through the rotation hole, so that the rotating shaft 302 rotates more stably.

Please refer to fig. 1 and fig. 2, one end of the rotating shaft 302 close to the motor 3 penetrates into the sealing bearing 102, the rotating shaft 302 is rotatably connected with the mounting head 101 through the sealing bearing 102, so that the sealing performance of the reaction kettle 1 is better, the stirring rod 303 is connected with the rotating shaft 302 in a welding manner, the stirring rod 303 is rotatably connected with the motor 3 through the rotating shaft 302, and the motor 3 drives the stirring rod 303 to rotate, so that the reaction kettle has better use effect.

The working principle is as follows: before the coprecipitation reaction is carried out, the reaction kettle is connected with another group of reaction kettles through a connecting pipe 206, when the coprecipitation reaction is carried out, the interior of the kettle body 1 is in a positive pressure state, in order to prevent a sample in the reaction kettle from being oxidized, a part of nitrogen is generally filled, the pressure in the kettle body 1 is monitored through a pressure control valve 201, the gas inlet amount is controlled, in the process of the coprecipitation reaction, a first ball valve 203 and a second ball valve 205 are in a closed state, the pressure control valve 201 maintains reasonable pressure in the kettle body 1, a rotating shaft 302 is driven to rotate through a motor 3, the rotating shaft 302 drives a stirring rod 303 to rotate, the rotating stirring rod 303 stirs the interior of the kettle body 1, when the reaction is carried out to a certain degree, the stirring rotating speed can be properly reduced but can not be stopped in order to prevent the natural settling reaction of particles, at the moment, the liquid level in the kettle body 1 is observed through a liquid level sensor 207, under the condition that the sizes of the reaction kettles are known, the volume of half of feed liquid required to be separated in the reaction process can be calculated, meanwhile, the pressure control valve 1 controls nitrogen gas entering the volume of half of the feed liquid, the pressure in the reaction kettles is positive pressure at this time, the tightness of the first ball valve 203 and the second ball valve 205 is checked, the second ball valves 205 of the two groups of reaction kettles are opened after the check is finished, the feed liquid in the reaction kettles enters the other reaction kettle through the connecting pipe 206, the reaction kettle receiving the feed liquid is filled with the nitrogen gas, the pressure control valve 201 of the other group of reaction kettle is slowly opened, the feed liquid enters the other group of reaction kettles, when the pressures in the two reaction kettles are consistent, the materials in the two kettles can be considered to be uniformly separated due to the pressure balance effect, the liquid level in the kettle body 1 is observed through the liquid level sensor 207 at the moment, the uniformity of material separation is verified, and after the material separation is finished, the second ball valves 205 of the two reaction kettles are closed, one end of the connecting pipe 206 is separated from the second ball valve 205 and lifted, a small amount of materials in the second ball valve 205 are filled by using a receiving barrel, and the materials are recycled according to unqualified materials.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides an even feed divider of coprecipitation reation kettle which characterized in that: including the cauldron body (1), be located intake pipe (2) of cauldron body (1) top one side and be located motor (3) of cauldron body (1) top intermediate position department, the cauldron body (1) includes:

the mounting head (101) is arranged at the middle position of the top of the kettle body (1), and a sealing bearing (102) is arranged at the middle position inside the mounting head (101); and

a support frame (103) arranged at the bottom of the kettle body (1).

2. The uniform material distributing device of the coprecipitation reaction kettle according to claim 1, which is characterized in that: the internally mounted of intake pipe (2) has pressure control valve (201), the intermediate position department of the cauldron body (1) bottom is provided with row material pipe (202), the inside bottom of row material pipe (202) is provided with first ball valve (203), the top that row material pipe (202) outside is located first ball valve (203) is provided with conveying pipe (204), conveying pipe (204) are kept away from the internally mounted of row material pipe (202) one end has second ball valve (205), conveying pipe (204) are close to the one end of second ball valve (205) is connected with connecting pipe (206), the inner wall of the cauldron body (1) is provided with level sensor (207).

3. The uniform material distributing device of the coprecipitation reaction kettle according to claim 2, which is characterized in that: the inside bottom of the cauldron body (1) is provided with spacing (301), the output of motor (3) is connected with and runs through to inside pivot (302) of spacing (301), the outside that pivot (302) are located the inside one end of the cauldron body (1) is provided with multiunit puddler (303).

4. The uniform material distributing device of the coprecipitation reaction kettle according to claim 1, which is characterized in that: the top of installation head (101) is provided with the mounting panel, motor (3) pass through mounting panel and installation head (101) fixed connection, the inside of installation head (101) is provided with the mounting groove, sealed bearing (102) pass through the mounting groove and can dismantle with installation head (101) and be connected, the bottom of support frame (103) all is provided with the slipmat.

5. The uniform material distributing device of the coprecipitation reaction kettle according to claim 2, which is characterized in that: intake pipe (2) and the cauldron body (1) welded connection, and intake pipe (2) are kept away from the one end of the cauldron body (1) is provided with flange, arrange material pipe (202) and the cauldron body (1) welded connection, conveying pipe (204) and row material pipe (202) welded connection, conveying pipe (204) are linked together through row material pipe (202) and the cauldron body (1).

6. The uniform material distributing device of the coprecipitation reaction kettle according to claim 2, which is characterized in that: the one end that conveying pipe (204) is close to second ball valve (205) is provided with flange, connecting pipe (206) can be dismantled with conveying pipe (204) through flange and be connected, the inside of the cauldron body (1) is provided with the fixed slot, level sensor (207) can be dismantled through fixed slot and cauldron body (1) and be connected.

7. The uniform material distributing device of the coprecipitation reaction kettle according to claim 3, wherein: the outside of spacing (301) is provided with the multiunit dead lever, spacing (301) are through dead lever and the cauldron body (1) fixed connection, spacing (301) inside intermediate position department is provided with the rotation hole, and pivot (302) are kept away from the one end of motor (3) runs through to spacing (301) inside, pivot (302) are rotated with spacing (301) through rotating the hole and are connected.

8. The uniform material distributing device of the coprecipitation reaction kettle according to claim 3, wherein: the utility model discloses a motor, including pivot (302), installation head (101), puddler (303), pivot (302) and motor (3), pivot (302) are close to the one end of motor (3) runs through to sealed bearing (102) inside, pivot (302) are connected with installation head (101) rotation through sealed bearing (102), puddler (303) and pivot (302) welded connection, puddler (303) are connected with motor (3) rotation through pivot (302).

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