CN211169876U

CN211169876U - Utilize lithium carbonate to sink lithium mother liquor and retrieve equipment of preparation high-purity lithium carbonate

Info

Publication number: CN211169876U
Application number: CN201921506170.1U
Authority: CN
Inventors: 向东; 苏康
Original assignee: SICHUAN CHANGHE HUALI TECHNOLOGY CO LTD
Current assignee: SICHUAN CHANGHE HUALI TECHNOLOGY CO LTD
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-08-04
Anticipated expiration: 2029-09-11

Abstract

The utility model provides an utilize lithium carbonate to sink lithium mother liquor and retrieve equipment of preparation battery level lithium carbonate relates to lithium carbonate preparation technical field, comprising a base plate, top one side fixedly connected with bracing piece of bottom plate, the top fixedly connected with heating device of bracing piece, heating device's top is provided with the evaporation frame, top one side of evaporation frame is provided with the exhaust window, the surface top fixedly connected with connecting rod of evaporation frame, the top fixedly connected with of connecting rod filters the frame, the inside of filtering the frame is provided with the filter screen, the top of filtering the frame is provided with the inlet pipe, the bottom of filtering the frame is provided with the transmission pipe. The problem of current equipment for lithium carbonate preparation, can produce lithium carbonate and deposit lithium mother liquor when using, contain a certain amount of lithium carbonate in its mother liquor, so can not give up it directly, so to not be sufficient to the utilization of raw materials, reduced the production conversion rate of lithium carbonate is solved.

Description

Utilize lithium carbonate to sink lithium mother liquor and retrieve equipment of preparation high-purity lithium carbonate

Technical Field

The utility model relates to a lithium carbonate preparation field especially relates to an utilize lithium carbonate to sink lithium mother liquor and retrieve equipment of preparation high purity lithium carbonate.

Background

Lithium carbonate, an inorganic compound of the formula L i₂CO₃The crystal is colorless monoclinic crystal or white powder. Density 2.11g/cm³Melting point 618 ℃ (1.013 × 10)⁵Pa) is added. Dissolved in dilute acid. Slightly soluble in water, and more soluble in cold water than in hot water. Insoluble in alcohol and acetone. Can be used for preparing ceramics, medicines, catalysts, etc. The common lithium ion battery raw material can be prepared by sintering spodumene and limestone at high temperature to generate lithium aluminate, leaching lithium hydroxide solution, and reacting with sodium carbonate. Or extracting magnesium chloride from bittern to obtain lithium-containing solution, removing calcium and magnesium ions with sodium carbonate, acidifying with hydrochloric acid, and reacting with sodium carbonate.

The existing lithium carbonate preparation equipment can generate lithium carbonate lithium deposition mother liquor during use, and the mother liquor contains a certain amount of lithium carbonate, so that the lithium carbonate lithium deposition mother liquor cannot be directly abandoned, so that the raw materials are not fully utilized, the production conversion rate of lithium carbonate is reduced, and the lithium carbonate lithium deposition mother liquor is not beneficial to long-term use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing an equipment for recovering and preparing battery-level lithium carbonate by utilizing lithium carbonate lithium precipitation mother liquor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an apparatus for preparing high-purity lithium carbonate by recovering lithium carbonate lithium deposition mother liquor comprises a bottom plate, a supporting rod is fixedly connected with one side of the top of the bottom plate, the top of the supporting rod is fixedly connected with a heating device, the top of the heating device is provided with an evaporation frame, an exhaust window is arranged on one side of the top of the evaporation frame, the top of the outer surface of the evaporation frame is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with a filtering frame, a filtering screen is arranged in the filtering frame, the top of the filter frame is provided with a feeding pipe, the bottom of the filter frame is provided with a transmission pipe, one side of the evaporation frame is provided with a discharging pipe, a butterfly valve is arranged on one side of the discharge pipe, a pressure-proof device is arranged on the other side of the top of the bottom plate, the top of the pressure-proof device is provided with a storage frame, and one side of the filter frame is provided with a sealing device.

Preferably, heating device includes the shell, be fixed connection between the surface top of shell and the surface bottom of evaporation frame, the internal surface bottom of shell is provided with the high power hot plate, the internal surface bottom of shell and the one side that is located the high power hot plate are provided with cooling fan, one side of shell is provided with the thermovent.

Preferably, the high-power heating plate can utilize alternating current to pass through a coil to generate an alternating magnetic field with a direction changing continuously, and the number of the heat dissipation fans is two.

Preferably, the pressure-proof device comprises a pressure-proof frame, the bottom of the outer surface of the pressure-proof frame is fixedly connected with the top of the bottom plate, an I-shaped block is arranged inside the pressure-proof frame, a pressure-proof spring is arranged at the bottom of the I-shaped block, and a contact sensor is arranged at the bottom of the inner surface of the pressure-proof frame and at one side of the pressure-proof spring.

Preferably, sliding connection is adopted between two sides of the bottom of the H-shaped block and two sides of the inner surface of the pressure-proof frame, the contact sensor has a function of contacting an object to send a contact signal, and the pressure-proof spring can be replaced by springs with different elastic coefficients according to actual needs.

Preferably, the sealing device comprises a frame body, the outer surface of the frame body is fixedly connected with the outer surface of the filter frame, an air pump is arranged at the bottom of the inner surface of the frame body, an air inlet pipe is arranged at one end of the air pump, a hydraulic telescopic rod is fixedly connected to the bottom of the outer surface of the frame body, an adsorption cover is fixedly connected to the bottom end of the hydraulic telescopic rod, a sealing plate is arranged at the bottom of the adsorption cover, a pulley block is arranged at the top of the inner surface of the frame body, and a connecting rope is arranged on one side of.

Preferably, one end of the air pump is communicated with the air inlet pipe, and the other end of the air inlet pipe is communicated with one side of the adsorption cover.

Preferably, the periphery of the bottom of the sealing plate is coated with connecting glue, the connecting rope is wound on the pulley block according to a certain rule, and one end of the connecting rope is fixedly connected with the other side of the adsorption cover.

Preferably, the number of the exhaust windows is two, the two groups of exhaust windows are respectively positioned at two sides of the top of the evaporation frame, and the bottom end of the transmission pipe is communicated with the top of the evaporation frame.

Preferably, the top end of the conveying pipe is communicated with the bottom of the filter frame, and the filter screen can filter some large impurities in the lithium deposition mother liquor.

1. The utility model discloses in, the heating device of adoption, realize carrying out the rapid heating to evaporation frame inside, when using, deposit lithium mother liquor with the lithium carbonate inside the leading-in inverted filter frame of inlet pipe, then filter great impurity in the mother liquor through the filter screen, make the lithium carbonate appear the crystallization more pure, then enter into evaporation frame inside through the transmission pipe, start high power hot plate, make its alternating magnetic field that produces the direction and constantly change, then make the temperature of evaporation frame rise, make moisture in the mother liquor obtain the rapid evaporation, vapor passes through the exhaust window and discharges, then continuously heat evaporation frame inside again, make evaporation frame inside temperature reach above lithium carbonate melting point 618 ℃, make the lithium carbonate crystal melt, be convenient for collect the transfer of lithium carbonate.

2. The utility model discloses in, the pressure device of preventing of adoption, in time stop discharging into the material after realizing storing the frame full-load, when using, open the butterfly valve, pass through the discharging pipe with the inside liquid lithium carbonate of evaporation frame and discharge inside storing the frame, then because the weight of storing the frame is increasing always, make and prevent the compression spring compression, the compression is to the contact of worker's shape piece and contact pick-up after the certain distance, signals, in time close the butterfly valve, prevent that the material from discharging too much to lead to extravagant and polluted environment.

3. The utility model discloses in, the sealing device of adoption, realize the self-sealing to storing the frame, reduce the danger that the people brought for the contact, when using, earlier place the closing plate that scribbles connection glue in absorption cover bottom, it breathes in to start the air pump, make the closing plate can fix in absorption cover below, then start hydraulic telescoping rod, make hydraulic telescoping rod's flexible end extension, make the closing plate and the top contact of storing the frame, fix through connecting glue, then start the air pump and aerify, make absorption cover can break away from with the closing plate, in absorption cover downstream, the effect that the connection rope passes through the assembly pulley upwards stimulates the discharging pipe, make can not block the closing plate.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an apparatus for recovering and preparing high-purity lithium carbonate from lithium carbonate lithium deposition mother liquor provided by the utility model;

fig. 2 is a schematic structural diagram of a heating device 3 in an apparatus for recovering and preparing high-purity lithium carbonate from lithium carbonate lithium deposition mother liquor provided by the present invention;

fig. 3 is a schematic structural diagram of a pressure prevention device 13 in an apparatus for recovering and preparing high-purity lithium carbonate by using lithium carbonate lithium deposition mother liquor provided by the utility model;

fig. 4 is the utility model provides an utilize lithium carbonate to sink lithium mother liquor and retrieve sealing device 15's in equipment of preparation high-purity lithium carbonate structural schematic.

Illustration of the drawings:

1. a base plate; 2. a support bar; 3. a heating device; 31. a housing; 32. a high power heating plate; 33. a heat radiation fan; 34. a heat dissipation port; 4. an evaporation frame; 5. an exhaust window; 6. a connecting rod; 7. a filter frame; 8. a filter screen; 9. a feed pipe; 10. a conveying pipe; 11. a discharge pipe; 12. a butterfly valve; 13. a pressure prevention device; 131. a pressure-proof frame; 132. a H-shaped block; 133. a compression-proof spring; 134. a contact sensor; 14. a storage frame; 15. a sealing device; 151. a frame body; 152. an air pump; 153. an air inlet pipe; 154. a hydraulic telescopic rod; 155. an adsorption cover; 156. a sealing plate; 157. a pulley block; 158. and connecting ropes.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, an apparatus for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor comprises a bottom plate 1, a support rod 2 is fixedly connected to one side of the top of the bottom plate 1, a heating device 3 is fixedly connected to the top of the support rod 2, an evaporation frame 4 is arranged on the top of the heating device 3, the evaporation frame 4 is made of an anti-corrosion stainless steel plate, an exhaust window 5 is arranged on one side of the top of the evaporation frame 4, a connecting rod 6 is fixedly connected to the top of the outer surface of the evaporation frame 4, a filter frame 7 is fixedly connected to the top of the connecting rod 6, a filter screen 8 is arranged inside the filter frame 7, a feed pipe 9 is arranged on the top of the filter frame 7, a transmission pipe 10 is arranged at the bottom of the filter frame 7, a discharge pipe 11 is arranged on one side of the evaporation frame 4, a butterfly valve 12 is arranged, one side of the filter frame 7 is provided with a sealing device 15.

Heating device 3 includes shell 31, be fixed connection between the surface top of shell 31 and the surface bottom of evaporation frame 4, the internal surface bottom of shell 31 is provided with high power hot plate 32, the power cord and the external power source electric connection of high power hot plate 32, the internal surface bottom of shell 31 and the one side that is located high power hot plate 32 are provided with cooling fan 33, cooling fan 33's model is HDSR50, cooling fan 33's power cord and external power source electric connection, one side of shell 31 is provided with thermovent 34.

Prevent pressing device 13 is including preventing pressing frame 131, prevents being fixed connection between the surface bottom of pressing frame 131 and the top of bottom plate 1, prevents pressing the inside of frame 131 and is provided with worker shape piece 132, and the bottom of worker shape piece 132 is provided with prevents pressing spring 133, prevents pressing the internal surface bottom of frame 131 and is located one side of preventing pressing spring 133 and is provided with contact sensor 134, contact sensor 134's power cord and external power source electric connection.

Sealing device 15 includes framework 151, be fixed connection between the surface one side of framework 151 and the surface one side of filtering frame 7, the internal surface bottom of framework 151 is provided with air pump 152, the model of air pump 152 is VAY8828, the power cord and the external power source electric connection of air pump 152, the one end of air pump 152 is provided with intake pipe 153, the surface bottom fixedly connected with hydraulic telescoping rod 154 of framework 151, the model of hydraulic telescoping rod 154 is HXM1804, the bottom fixedly connected with of hydraulic telescoping rod 154 adsorbs cover 155, the bottom of adsorbing cover 155 is provided with sealing plate 156, the internal surface top of framework 151 is provided with assembly pulley 157, one side of assembly pulley 157 is provided with connection rope 158.

The utility model discloses a theory of operation: when the lithium carbonate evaporator is used, lithium carbonate precipitation mother liquor is firstly led into the inverted filter frame 7 from the inlet pipe 9, then larger impurities in the mother liquor are filtered out through the filter screen 8, lithium carbonate is precipitated and crystallized to be purer, then the lithium carbonate enters the evaporation frame 4 through the transmission pipe 10, the high-power heating plate 32 is started to generate an alternating magnetic field with continuously changed direction, then the temperature of the evaporation frame 4 is increased, moisture in the mother liquor is quickly evaporated, water vapor is discharged through the exhaust window 5, then the inside of the evaporation frame 4 is continuously heated, the temperature of the inside of the evaporation frame 4 reaches above 618 ℃ of the melting point of lithium carbonate, lithium carbonate crystals are made to be transferred and melted, and then the lithium carbonate is timely stopped to be discharged into a material after the storage frame 14 is fully loaded through the arranged pressure-proof device 13, when the lithium carbonate storage box is used, the butterfly valve 12 is opened, liquid lithium carbonate in the evaporation frame 4 is discharged into the storage frame 14 through the discharge pipe 11, then the weight of the storage frame 14 is increased all the time, the compression-proof spring 133 is compressed, the shaping block 132 is contacted with the contact sensor 134 after being compressed to a certain distance, a signal is sent, the butterfly valve 12 is closed in time, waste and environment pollution caused by excessive discharge of materials are prevented, finally, automatic sealing of the storage frame 14 is realized through the arranged sealing device 15, the danger caused by artificial contact is reduced, when the lithium carbonate storage box is used, the sealing plate 156 coated with connecting glue is firstly placed at the bottom of the adsorption cover 155, the air pump 152 is started to suck air, the sealing plate 156 can be fixed below the adsorption cover 155, then the hydraulic telescopic rod 154 is started, the telescopic end of the hydraulic telescopic rod 154 is extended, and the sealing plate 156 is contacted with the top of, fix through connecting the glue, then start air pump 152 and aerify for adsorb cover 155 can break away from with closing plate 156, when adsorbing cover 155 moves down, connect rope 158 through the effect of assembly pulley 157 with discharging pipe 11 upwards pulling, make can not block closing plate 156.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an utilize lithium carbonate to sink lithium mother liquor and retrieve equipment of preparation high-purity lithium carbonate, includes bottom plate (1), its characterized in that: the top of the bottom plate (1) is fixedly connected with a supporting rod (2), the top of the supporting rod (2) is fixedly connected with a heating device (3), the top of the heating device (3) is provided with an evaporation frame (4), one side of the top of the evaporation frame (4) is provided with an exhaust window (5), the top of the outer surface of the evaporation frame (4) is fixedly connected with a connecting rod (6), the top of the connecting rod (6) is fixedly connected with a filter frame (7), a filter screen (8) is arranged in the filter frame (7), the top of the filter frame (7) is provided with an inlet pipe (9), the bottom of the filter frame (7) is provided with a transmission pipe (10), one side of the evaporation frame (4) is provided with a discharge pipe (11), one side of the discharge pipe (11) is provided with a butterfly valve (12), and the other side of the top of the bottom, the top of the pressure-proof device (13) is provided with a storage frame (14), and one side of the filter frame (7) is provided with a sealing device (15).

2. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 1, is characterized in that: heating device (3) include shell (31), be fixed connection between the surface top of shell (31) and the surface bottom of evaporation frame (4), the internal surface bottom of shell (31) is provided with high power hot plate (32), the internal surface bottom of shell (31) and the one side that is located high power hot plate (32) are provided with radiator fan (33), one side of shell (31) is provided with thermovent (34).

3. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 2, characterized in that: the high-power heating plate (32) can generate alternating magnetic fields with continuously changed directions by using alternating currents through coils, and the number of the heat dissipation fans (33) is two.

4. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 1, is characterized in that: prevent pressing device (13) including preventing pressing frame (131), be fixed connection between the surface bottom of preventing pressing frame (131) and the top of bottom plate (1), the inside of preventing pressing frame (131) is provided with worker's shape piece (132), the bottom of worker's shape piece (132) is provided with prevents pressing spring (133), the internal surface bottom of preventing pressing frame (131) and the one side that is located to prevent pressing spring (133) are provided with contact pick up (134).

5. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 4, is characterized in that: the bottom two sides of the shaped block (132) are in sliding connection with the two sides of the inner surface of the pressure-proof frame (131), the contact sensor (134) has a function of contacting an object to send a contact signal, and the pressure-proof spring (133) can be replaced by springs with different elastic coefficients according to actual needs.

6. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 1, is characterized in that: sealing device (15) includes framework (151), be fixed connection between the surface one side of framework (151) and the surface one side of filter frame (7), the internal surface bottom of framework (151) is provided with air pump (152), the one end of air pump (152) is provided with intake pipe (153), the surface bottom fixedly connected with hydraulic telescoping rod (154) of framework (151), the bottom fixedly connected with of hydraulic telescoping rod (154) adsorbs cover (155), the bottom of adsorbing cover (155) is provided with closing plate (156), the internal surface top of framework (151) is provided with assembly pulley (157), one side of assembly pulley (157) is provided with connects rope (158).

7. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 6, characterized in that: one end of the air pump (152) is communicated with the air inlet pipe (153), and the other end of the air inlet pipe (153) is communicated with one side of the adsorption cover (155).

8. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 6, characterized in that: the bottom of the sealing plate (156) is coated with connecting glue, the connecting rope (158) is wound on the pulley block (157) according to a certain rule, and one end of the connecting rope (158) is fixedly connected with the other side of the adsorption cover (155).

9. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 1, is characterized in that: the number of the exhaust windows (5) is two, the two groups of exhaust windows (5) are respectively positioned at two sides of the top of the evaporation frame (4), and the bottom end of the transmission pipe (10) is communicated with the top of the evaporation frame (4).

10. The equipment for preparing high-purity lithium carbonate by recovering lithium carbonate lithium precipitation mother liquor according to claim 1, is characterized in that: the top end of the conveying pipe (10) is communicated with the bottom of the filter frame (7), and the filter screen (8) can filter some large impurities in the lithium precipitation mother liquor.