Distributing device in lithium carbonate preparation process

Abstract

The utility model discloses a distributor device in a lithium carbonate preparation process, which comprises a distributor support fixedly mounted in the middle of a lithium precipitation kettle shell, a semicircular flat-bottom closed loop distributor fixedly mounted at the upper part of the distributor support, and a stirring paddle mounted at the upper part of the semicircular flat-bottom closed loop distributor. Distributor liquid is arranged at the lower part of the semicircular flat-bottom closed loop distributor, the distributed liquid is positioned on the upper layer of the liquid in the kettle, the semicircular flat-bottom closed loop distributor is of a hollow ring-shaped structure, the upper part of the semicircular flat-bottom closed loop distributor is communicated with a feeding pipeline, the feeding pipeline is communicated with the outer part of the shell of the lithium precipitation kettle, and a discharging hole is formed in the lower part of the semicircular flat-bottom closed loop distributor; when materials are released from the feeding pipeline through high pressure and rapidly enter the semicircular flat-bottom closed loop distributor, the semicircular flat-bottom closed loop distributor is in a hollow circular ring shape, so that magnetic substances caused by large friction between the distributor and the materials due to the corner problem of the inner wall of the distributor can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of support technology, in particular to a distributor device in the process of preparing lithium carbonate. Background Art

[0002] In the process of preparing lithium carbonate, the most critical step to improve production efficiency is the lithium precipitation stage. After the calcined lithium carbonate goes through a series of processes such as leaching and purification, the impurities in the lithium-containing aqueous solution (preliminary solution) have reached the quality requirements. Therefore, the rapid reaction lithium precipitation process in the subsequent lithium precipitation stage determines the production efficiency and is an important indicator for estimating production.

[0003] At present, in the prior art, a hexagonal kettle distributor is used for the lithium precipitation front liquid to ensure the smooth progress of the reaction. After the material enters the distributor chamber from the feed pipe, it is scattered into the reaction material below through the lower distribution hole. During the rapid feeding process of this hexagonal distributor, due to the hexagonal inner wall corners of the hexagonal distributor, when the material is quickly filled into the distributor, there will be greater friction between the material and the inner wall of the distributor and produce magnetic substances. At the same time, there will be obvious shaking and kinking of the pipeline, resulting in unsmooth distribution. As a result, the magnetic content of the inner wall of the distributor will increase over time and be brought into the subsequent distribution liquid by the material, which will affect the production efficiency.

[0004] Therefore, the utility model proposes a distributor device in the process of preparing lithium carbonate based on the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that when materials are quickly filled into the distributor, the materials and the inner wall of the distributor produce large friction and produce magnetic substances.

[0006] Therefore, according to the above problem, the utility model proposes a distributor device in the process of preparing lithium carbonate, comprising a lithium immersion kettle shell, a kettle liquid is arranged at the bottom of the lithium immersion kettle shell, a motor is fixedly installed on the upper part of the lithium immersion kettle shell, a feeding pipe is also arranged on the upper part of the lithium immersion kettle shell, two weighing supports are fixedly installed on the side wall of the lithium immersion kettle shell, a supernatant liquid discharge port is also opened on one side of the lithium immersion kettle shell, a steam coil is connected to one side of the lithium immersion kettle shell, a discharge port and a condensate outlet are opened on the lower part of the lithium immersion kettle shell, a reducer is connected to the lower part of the motor installed on the lithium immersion kettle shell, a stirring shaft is connected to the output shaft of the reducer, a stirring paddle is connected to the middle part of the stirring shaft, a distributor support is fixedly installed in the middle part of the lithium immersion kettle shell, a semicircular flat-bottomed closed-loop distributor is fixedly installed on the upper part of the distributor support, the installation position of the semicircular flat-bottomed closed-loop distributor is located above the stirring paddle, the lower part of the semicircular flat-bottomed closed-loop distributor is provided with distributor liquid, and the distribution liquid is located in the upper layer of the kettle liquid.

[0007] Preferably: the semicircular flat bottom closed loop distributor has a hollow ring shape, the upper part of the semicircular flat bottom closed loop distributor is connected with a feed pipe, the feed pipe is connected to the outside of the lithium precipitation kettle shell, and the lower part is provided with a discharge hole.

[0008] Preferably: the semicircular flat-bottom closed loop distributor is composed of a distributor outer shell and a distributor inner shell, the distributor inner shell is sleeved inside the distributor outer shell, semicircular grooves are opened on both sides of the outside of the distributor inner shell, and semicircular grooves are also opened on both sides of the inside of the distributor outer shell, and spherical balls are arranged between the semicircular grooves of the distributor outer shell and the semicircular grooves of the distributor inner shell, the discharge hole is arranged at the lower part of the distributor inner shell, the feed pipe is installed at the upper part of the distributor outer shell, and the feed pipe is installed inside the distributor outer shell with a certain inclination angle, rather than being installed vertically at 90 degrees.

[0009] Preferably: the diameter of the discharge hole is 2 mm. Beneficial Effects

[0010] 1. When the material is released from the feed pipe through high pressure and quickly enters the semicircular flat-bottomed closed loop distributor, the semicircular flat-bottomed closed loop distributor has a hollow ring shape, which can avoid the magnetic substances caused by the greater friction between the material and the corner of the inner wall of the distributor.

[0011] 2. At the same time, when the material enters the inner shell of the distributor, it will be inclined at a certain angle. At this time, the friction generated when the material contacts the inner shell of the distributor will drive the inner shell of the distributor to rotate between the outer shell of the distributor, thereby reducing the friction between the material and the inner shell of the distributor, further reducing the generation of magnetic substances, and the rotation of the inner shell of the distributor will form a throwing force at the discharge hole, which can further and better distribute the material evenly inside the lithium sinking kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of a hexagonal distributor in the prior art;

[0013] Figure 2 This is a schematic diagram of the internal structure of the lithium sinking kettle of the utility model;

[0014] Figure 3 This is a perspective view of the structure of a semicircular flat-bottomed closed loop distributor of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of a semicircular flat-bottomed closed loop distributor of the utility model;

[0016] Figure 5 It is a cross-sectional schematic diagram of the structure of a semicircular flat-bottomed closed loop distributor of the utility model;

[0017] Figures 1 to 5The reference numerals in the drawings are respectively: motor 1, reducer 2, distributor support 3, stirring paddle 4, stirring shaft 5, supernatant discharge port 6, discharge port 7, feed pipe 8, distributor outer shell 9, distributor inner shell 901, discharge hole 902, semicircular groove 903, ball 904, weighing support 10, distributor liquid 11, liquid in kettle 12, steam coil 13, condensate outlet 14. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figures 1 to 5 The present embodiment provides a distributor device in the process of preparing lithium carbonate, including a lithium precipitator shell, a precipitator liquid 12 is arranged at the bottom of the lithium precipitator shell, a motor 1 is fixedly installed on the upper part of the lithium precipitator shell, a feeding pipeline 8 is also arranged on the upper part of the lithium precipitator shell, two weighing supports 10 are fixedly installed on the side wall of the lithium precipitator shell, a supernatant discharge port 6 is also opened on one side of the lithium precipitator shell, a steam coil 13 is connected to one side of the lithium precipitator shell, a discharge port 7 and a condensate outlet 14 are opened at the lower part of the lithium precipitator shell, a reducer 2 is connected to the lower part of the motor 1 installed on the lithium precipitator shell, the output shaft of the reducer 2 is connected to the stirring shaft 5, and the middle of the stirring shaft 5 is connected There is a stirring paddle 4, a distributor support 3 is fixedly installed in the middle of the lithium precipitation kettle shell, a semicircular flat bottom closed loop distributor is fixedly installed on the upper part of the distributor support 3, the installation position of the semicircular flat bottom closed loop distributor is located on the upper part of the stirring paddle 4, and a distributor liquid 11 is arranged at the lower part of the semicircular flat bottom closed loop distributor, and the distributor liquid 11 is located on the upper layer of the liquid 12 in the kettle. When the material is released from the feed pipe 8 through high pressure and enters the interior of the semicircular flat bottom closed loop distributor, the semicircular flat bottom closed loop distributor has a hollow ring shape to avoid magnetic substances caused by greater friction with the material due to the corner problem of the inner wall of the distributor.

[0020] Preferably, the semicircular flat bottom closed loop distributor has a hollow ring shape, the upper part of the semicircular flat bottom closed loop distributor is connected with a feed pipe 8, and the lower part is provided with a discharge hole 902.

[0021] Preferably: the semicircular flat bottom closed loop distributor is composed of a distributor outer shell 9 and a distributor inner shell 901, the distributor outer shell 9 is sleeved with the distributor inner shell 901, the outer sides of the distributor inner shell 901 are provided with semicircular grooves 903, the inner sides of the distributor outer shell 9 are also provided with semicircular grooves 903, spherical balls 904 are arranged between the semicircular grooves 903 of the distributor outer shell 9 and the semicircular grooves 903 of the distributor inner shell 901, the discharging hole 902 is arranged at the lower part of the distributor inner shell 901, the feeding pipe 8 is installed at the upper part of the distributor outer shell 9, and the feeding pipe 8 is installed inside the distributor outer shell 9 with a certain inclination angle, not vertically at 90 degrees, when the distributor is high When the material is pressurized and charged, since the feed pipe 8 is installed inside the distributor shell 9 at a certain inclination angle, and at the same time, since the distributor shell 9 and the distributor inner shell 901 are connected by the ball 904, when the material enters the distributor inner shell 901, it will be at a certain inclination angle. At this time, the friction force generated when the material contacts the distributor inner shell 901 will drive the distributor inner shell 901 to rotate between the distributor shell 9, thereby reducing the friction between the material and the distributor inner shell 901, reducing the generation of magnetic substances, and the rotation of the distributor inner shell 901 will form a throwing force at the discharge hole 902, which can better distribute the material evenly inside the lithium sedimentation kettle.

[0022] Preferably: the diameter of the discharge hole 902 is 2mm. When the material enters the inner wall of the distributor, since the material enters the inner wall of the distributor through high pressure, and the discharge hole 902 is set to 2mm, because the discharge hole 902 is small, the material that quickly enters the inner wall of the distributor can quickly fill the inner wall of the distributor, thereby facilitating uniform distribution.

[0023] Working principle:

[0024] When the material is released from the feed pipe 8 through high pressure and enters the interior of the semicircular flat-bottomed closed loop distributor, the semicircular flat-bottomed closed loop distributor has a hollow ring shape, which can avoid the magnetic substances caused by the large friction between the material and the corner of the inner wall of the distributor, and at the same time reduce the weighing error caused by the shaking of the kettle body due to the impact.

[0025] When the material is charged into the distributor under high pressure, since the feed pipe 8 is installed inside the distributor outer shell 9 with a certain inclination angle, and at the same time, since the distributor outer shell 9 and the distributor inner shell 901 are connected by the ball 904, when the material enters the distributor inner shell 901, it will be at a certain inclination angle. At this time, the friction force generated when the material contacts the distributor inner shell 901 will drive the distributor inner shell 901 to rotate between the distributor outer shell 9, thereby reducing the friction between the material and the distributor inner shell 901, further reducing the generation of magnetic substances, and the rotation of the distributor inner shell 901 will form a throwing force at the discharge hole 902, which can further and better distribute the material evenly inside the lithium sedimentation kettle.

[0026] After actual measurement, the existing distributor produced 10-20ppb of magnetic material after a certain period of use due to the multiple corners problem, and the shaking amplitude of the kettle body due to impact was between 30-50mm; the weighing error caused by shaking reached 10-20kg. After the improvement, the magnetic material was reduced to between 2-12ppb, a decrease of 40%; the shaking amplitude was between 25mm-35mm, a decrease of 30%; the weighing error caused by shaking was reduced to 6-16kg, a decrease of 20%. The overall performance has been effectively improved.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distributor device for preparing lithium carbonate, comprising a lithium precipitator shell, a precipitator liquid (12) is arranged at the bottom of the lithium precipitator shell, a motor (1) is fixedly installed on the upper part of the lithium precipitator shell, a feed pipe (8) is also arranged on the upper part of the lithium precipitator, two weighing supports (10) are fixedly installed on the side wall of the lithium precipitator shell, a supernatant liquid discharge port (6) is also opened on one side of the lithium precipitator shell, a steam coil (13) is connected to one side of the lithium precipitator shell, a discharge port (7) and a condensate outlet (14) are opened at the lower part of the lithium precipitator shell, a reducer (2) is connected to the lower part of the motor (1) installed on the lithium precipitator shell, the output shaft of the reducer (2) is connected to the stirring shaft (5), and the middle part of the stirring shaft (5) is connected to a stirring paddle (4), characterized in that: A distributor support (3) is fixedly installed in the middle of the lithium precipitation kettle shell, and a semicircular flat-bottomed closed loop distributor is fixedly installed on the upper part of the distributor support (3). The installation position of the semicircular flat-bottomed closed loop distributor is located above the stirring paddle (4). A distributor liquid (11) is arranged at the lower part of the semicircular flat-bottomed closed loop distributor. The distribution liquid (11) is located at the upper layer of the liquid (12) in the kettle.

2. The distributor device in the process of preparing lithium carbonate according to claim 1, characterized in that: The semicircular flat-bottomed closed loop distributor has a hollow circular ring shape. The upper portion of the semicircular flat-bottomed closed loop distributor is connected to a feed pipe (8), which is connected to the outside of the lithium precipitation kettle shell. The lower portion is provided with a discharge hole (902).

3. The distributor device in the process of preparing lithium carbonate according to claim 2, characterized in that: The semicircular flat-bottomed closed loop distributor is composed of a distributor outer shell (9) and a distributor inner shell (901); the distributor inner shell (901) is sleeved inside the distributor outer shell (9); semicircular grooves (903) are provided on both sides of the outer surface of the distributor inner shell (901); semicircular grooves (903) are provided on both sides of the inner surface of the distributor outer shell (9); spherical balls (904) are provided between the semicircular grooves (903) of the distributor outer shell (9) and the semicircular grooves (903) of the distributor inner shell (901); the discharge hole (902) is provided at the lower part of the distributor inner shell (901); the feed pipe (8) is installed at the upper part of the distributor outer shell (9); and the feed pipe (8) is installed inside the distributor outer shell (9) at a certain inclination angle, rather than being installed vertically at 90 degrees.

4. The distributor device in the process of preparing lithium carbonate according to claim 3, characterized in that: The discharge hole (902) has a diameter of 2 mm.

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