CN217613183U

CN217613183U - Continuous solid-liquid separator for preparing lithium hexafluorophosphate

Info

Publication number: CN217613183U
Application number: CN202221973862.9U
Authority: CN
Inventors: 岳明理
Original assignee: Jiaozuo Hexin Machinery Co ltd
Current assignee: Jiaozuo Hexin Machinery Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-10-21
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses a lithium hexafluorophosphate preparation is with continuous type solid-liquid separator, which comprises a tank body, from last impurity filter, spray plate and the circular crystallization board of down having set gradually in the jar body, the one end of impurity filter is supported on the inner wall of the jar body, the other end of impurity filter runs through the lateral wall of the jar body and is provided with the arm-tie, circular crystallization board fixed mounting is internal at the jar, the vertical rotation of center department of circular crystallization board is connected with the center pin, the upper end fixedly connected with scraper blade of center pin. The utility model discloses, no. three helical gear rotates and drives a helical gear rotation, and then drives the connecting axle and rotate, and the connecting axle takes the flange to rotate, and the flange rotates the in-process, constantly lifts the right-hand member of filter screen upwards for filter screen surface crystal is collected in falling into the collecting box through the drain along the inclined plane of filter screen, has avoided the crystal to cause the production of filter screen to block up, has improved the filter effect of filter screen.

Description

Continuous solid-liquid separator for preparing lithium hexafluorophosphate

Technical Field

The utility model relates to the technical field of, especially, relate to a lithium hexafluorophosphate preparation is with continuous type solid-liquid separation ware.

Background

Lithium hexafluorophosphate is always the most main electrolyte lithium salt used in commercial lithium batteries, and the preparation method of the lithium hexafluorophosphate comprises the steps of firstly rectifying and purifying anhydrous hydrogen fluoride to obtain high-purity anhydrous hydrogen fluoride, then dissolving the lithium fluoride in the high-purity anhydrous hydrogen fluoride to obtain an anhydrous hydrogen fluoride solution containing the lithium fluoride, then adding phosphorus pentachloride to prepare a lithium hexafluorophosphate saturated solution, and finally carrying out low-temperature crystallization, solidification and separation, drying, crushing and packaging on the lithium hexafluorophosphate saturated solution to obtain a lithium hexafluorophosphate product.

By search, patent No. CN207886730U discloses a purification separator for lithium hexafluorophosphate. This separator includes the support and locates the jar body on the support, and jar internal portion is equipped with the spray plate, and the spray plate top is for filtering the cavity, and the spray plate below is the crystallization cavity, filters the inside impurity filter that is equipped with of cavity, and the outside of crystallization cavity is equipped with one deck splint. The utility model discloses the separator crystallization rate is fast, and the crystallization rate is high.

Above-mentioned current lithium hexafluorophosphate's purification separator is at the in-process that uses, and the crystal is finally stayed on the crystal filter after the filtration of crystal filter with the mixture of solution, but along with filterable going on, the crystal can pile up on the crystal filter, has reduced the filter effect of crystal filter.

In order to solve the problem, the utility model provides a lithium hexafluorophosphate preparation is with continuous type solid-liquid separator.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides a lithium hexafluorophosphate preparation is with continuous type solid-liquid separation ware to solve among the prior art "current lithium hexafluorophosphate's purification separator at the in-process that uses, the mixture of crystal and solution is through the filtration back of crystal filter, and the crystal is finally stayed on the crystal filter, but along with filterable going on, the crystal can be piled up on the crystal filter, has reduced the technical problem of the filter effect" of crystal filter.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a lithium hexafluorophosphate preparation is with continuous type solid-liquid separator, which comprises a tank body, from last impurity filter, spray plate and the circular crystallization board of down having set gradually in the jar body, the one end of impurity filter is supported on the inner wall of the jar body, the other end of impurity filter runs through the lateral wall of the jar body and is provided with the arm-tie, circular crystallization board fixed mounting is internal at the jar, the vertical rotation of center department of circular crystallization board is connected with the center pin, the upper end fixedly connected with scraper blade of center pin, the lower extreme fixed mounting of scraper blade has No. three helical gears, the meshing is connected with a helical gear and No. two helical gears on No. three helical gears respectively, the right side of No. two helical gears is provided with servo motor, servo motor fixed mounting is at the lower terminal surface of circular crystallization board, servo motor's output end fixed mounting is in the center department on No. two helical gear lateral walls, the material conveying mouth has been seted up in the left side of circular crystallization board, the lower extreme fixed mounting of material conveying mouth has the funnel, transversely be provided with the filter screen in the funnel, rotate between the left end of filter screen and the inner wall of the jar body and be connected, the right-hand member that contacts with the inner wall of funnel, the below of convex plate is provided with the flange, the other end fixed connection of filter screen runs through the lateral wall department on the lateral wall of filter screen.

As the utility model discloses an optimized technical scheme, the left side fixed mounting of the jar body has the collecting box, the drain has been seted up on the lateral wall of the jar body, the left end looks parallel and level of drain and filter screen, communicate each other in drain and the collecting box, seted up on the left side wall of collecting box and got and put the mouth, get and be provided with the door plant in the mouth.

As the utility model discloses a preferred technical scheme, it is internal at the jar to spray board fixed mounting, half fixed mounting on the right side of the lower terminal surface of spraying board has a plurality of shower nozzles.

As the utility model discloses an optimized technical scheme, be provided with the fluid-discharge tube on the lateral wall of jar body bottom, the fluid-discharge tube communicates with jar internal each other.

As the utility model discloses an optimized technical scheme, the up end fixed mounting of the jar body has the feed inlet, feed inlet and jar internal intercommunication each other.

As the utility model discloses an optimized technical scheme, seted up on the right side wall of the jar body with impurity filter assorted through-hole, the sealed sliding connection of impurity filter is in the through-hole, the filter-tank has been seted up to the upper end of impurity filter.

The utility model provides a lithium hexafluorophosphate preparation is with continuous type solid-liquid separator possesses following beneficial effect:

the third helical gear rotates to drive the first helical gear to rotate, so that the connecting shaft is driven to rotate, the connecting shaft is provided with the convex disc to rotate, and the convex disc continuously lifts the right end of the filter screen upwards in the rotating process, so that crystals on the surface of the filter screen fall into the collecting box through the sewage outlet along the inclined plane of the filter screen to be collected, the crystals are prevented from being blocked, and the filtering effect of the filter screen is improved.

Drawings

Fig. 1 is a schematic front structural view of a continuous solid-liquid separator for lithium hexafluorophosphate preparation according to the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the automatic impurity filtering device comprises a hopper 1, a filter screen 2, a collecting box 3, a sewage draining outlet 4, a spraying plate 5, a tank body 6, a feeding hole 7, an impurity filtering plate 8, a spray head 9, a circular crystallization plate 10, a liquid discharging pipe 11, a convex disc 12, a first helical gear 13, a scraper 14, a central shaft 15, a servo motor 16, a second helical gear 17 and a third helical gear 18.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" should be broadly construed, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Examples

Referring to fig. 1-2, the present invention provides a technical solution: a continuous solid-liquid separator for preparing lithium hexafluorophosphate comprises a tank body 6, an impurity filter plate 8, a spray plate 5 and a circular crystallization plate 10 are sequentially arranged in the tank body 6 from top to bottom, one end of the impurity filter plate 8 is propped against the inner wall of the tank body 6, the other end of the impurity filter plate 8 penetrates through the side wall of the tank body 6 and is provided with a pull plate, the circular crystallization plate 10 is fixedly arranged in the tank body 6, the center of the circular crystallization plate 10 is vertically and rotatably connected with a central shaft 15, the upper end of the central shaft 15 is fixedly connected with a scraper 14, the lower end of the scraper 14 is fixedly provided with a third helical gear 18, the third helical gear 18 is respectively connected with a first helical gear 13 and a second helical gear 17 in a meshing manner, no. two helical gear 17's right side is provided with servo motor 16, servo motor 16 fixed mounting is at the lower terminal surface of circular crystallization board 10, servo motor 16's output end fixed mounting is in the center department on No. two helical gear 17 lateral walls, the delivery port has been seted up in the left side of circular crystallization board 10, the lower extreme fixed mounting of delivery port has funnel 1, transversely be provided with filter screen 2 in the funnel 1, it is connected to rotate between the left end of filter screen 2 and the inner wall of the jar body 6, filter screen 2's right-hand member contacts with the inner wall of funnel 1, filter screen 2's below is provided with flange 12, the right side fixedly connected with connecting axle of flange 12, the other end of connecting axle runs through the lateral wall of funnel 1 and the center department of fixed connection on helical gear 13 lateral wall.

Wherein, the left side fixed mounting of the jar body 6 has collecting box 3, has seted up drain 4 on the lateral wall of the jar body 6, and drain 4 and filter screen 2's left end looks parallel and level have been seted up on the left side wall of collecting box 3 and have been got and put the mouth, get and put the mouth and be provided with the door plant in the mouth, open the door plant and be convenient for take out the crystal in the collecting box 3 in drain 4 and the collecting box 3 intercommunication each other.

Wherein, 5 fixed mounting of spraying plate is in jar 6, and the right half fixed mounting of the lower terminal surface of spraying plate 5 has a plurality of shower nozzles 9, and shower nozzle 9 is convenient for spray the crystal solution of spraying plate 5 on circular crystallization board 10.

Wherein, be provided with drain pipe 11 on the lateral wall of jar body 6 bottom, mutual intercommunication in drain pipe 11 and the jar body 6, drain pipe 11 is convenient for discharge the liquid of jar body 6 bottom.

Wherein, the upper end face fixed mounting of jar body 6 has feed inlet 7, and feed inlet 7 communicates each other in jar body 6, the addition of the crystal solution of being convenient for.

Wherein, seted up on the right side wall of jar body 6 with 8 assorted through-holes of impurity filter, the sealed sliding connection of impurity filter 8 is in the through-hole, and the filter-tank has been seted up to the upper end of impurity filter 8, and the filter-tank is convenient for collect impurity.

The utility model discloses a theory of operation: the servo motor 16 drives the second helical gear 17 to rotate through the output end, the second helical gear 17 drives the third helical gear 18 to rotate, the third helical gear 18 drives the central shaft 15 to rotate, crystals on the upper end surface of the circular crystallization plate 10 are scraped, so that a mixture of the crystals and the solution falls on the filter screen 2 through the material conveying port on the left side of the circular crystallization plate 10, and the solution falls into the bottom of the tank body 6 through the lower end of the funnel 1 after being filtered by the filter screen 2; no. three helical gears 18 rotate and drive a helical gear 13 and rotate, and then drive the connecting axle and rotate, and the connecting axle takes the protruding dish 12 to rotate, and the protruding dish 12 rotates the in-process, constantly lifts the right-hand member of filter screen 2 upwards for filter screen 2 surface crystal is collected in falling into collecting box 3 through drain 4 along filter screen 2's inclined plane, has avoided the crystal to cause the production of filter screen 2 to block up, has improved the filter effect of filter screen 2.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention. In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" and the like are directions or positional relationships based on the drawings, and are only for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Claims

1. The utility model provides a lithium hexafluorophosphate preparation is with continuous type solid-liquid separator, includes jar body (6), its characterized in that, from last down set gradually impurity filter (8), spray plate (5) and circular crystallization board (10) in jar body (6), the one end of impurity filter (8) is supported on the inner wall of jar body (6), the other end of impurity filter (8) runs through the lateral wall of jar body (6) and is provided with the arm-tie, circular crystallization board (10) fixed mounting is in jar body (6), the vertical rotation of center department of circular crystallization board (10) is connected with center pin (15), the upper end fixedly connected with scraper blade (14) of center pin (15), the lower extreme fixed mounting of scraper blade (14) has No. three helical gear (18), on No. three helical gear (18) respectively the meshing be connected with No. one helical gear (13) and No. two helical gear (17), the right side of No. two helical gear (17) is provided with servo motor (16), servo motor (16) fixed mounting is at the lower terminal surface of circular crystallization board (10), the output fixed mounting of servo motor (16) is in the output department of No. two helical gear (17) the lateral wall (17), the left side department of the lateral wall of circular funnel (1) is equipped with the lower extreme of filtration mouth (1), the hopper (1), rotate between the left end of filter screen (2) and the inner wall of the jar body (6) and be connected, the right-hand member of filter screen (2) contacts with the inner wall of funnel (1), the below of filter screen (2) is provided with protruding dish (12), the right side fixedly connected with connecting axle of protruding dish (12), the other end of connecting axle runs through the lateral wall of funnel (1) and the center department of fixed connection on helical gear (13) lateral wall No. one.

2. The continuous solid-liquid separator for preparing lithium hexafluorophosphate according to claim 1, wherein the collecting box (3) is fixedly installed on the left side of the tank body (6), a sewage outlet (4) is formed in the side wall of the tank body (6), the sewage outlet (4) is flush with the left end of the filter screen (2), the sewage outlet (4) is communicated with the collecting box (3), a taking and placing opening is formed in the left side wall of the collecting box (3), and a door plate is arranged in the taking and placing opening.

3. The continuous solid-liquid separator for lithium hexafluorophosphate preparation according to claim 1, wherein said spray plate (5) is fixedly installed in the tank (6), and a plurality of nozzles (9) are fixedly installed on the right half of the lower end surface of said spray plate (5).

4. The continuous solid-liquid separator for preparing lithium hexafluorophosphate according to claim 1, wherein a drain pipe (11) is arranged on the side wall of the bottom end of the tank body (6), and the drain pipe (11) is communicated with the inside of the tank body (6).

5. The continuous solid-liquid separator for preparing lithium hexafluorophosphate according to claim 1, wherein a feed inlet (7) is fixedly arranged on the upper end surface of the tank body (6), and the feed inlet (7) is communicated with the interior of the tank body (6).

6. The continuous solid-liquid separator for preparing lithium hexafluorophosphate according to claim 1, wherein a through hole matched with the impurity filtering plate (8) is formed in the right side wall of the tank body (6), the impurity filtering plate (8) is connected in the through hole in a sealing and sliding manner, and a filtering groove is formed in the upper end of the impurity filtering plate (8).