CN209275328U - Head tank that is a kind of while being dehydrated purification - Google Patents

Abstract

The utility model provides head tank that is a kind of while being dehydrated purification, the head tank includes: tank body, feed pipe, spray thrower, upper filter baffle, molecular sieve, changes sieve mouth, lower filter baffle, stabilizer blade, discharge nozzle, discharge duct, feed back pipe, vacuum tube, nitrogen tube, rupture disk, safety valve, inlet valve, material returning valve, outlet valve, pump, discharge valve, and the molecular sieve includes: 3A molecular sieve, 4A molecular sieve, 5A molecular sieve.The molecular sieve that the utility model uses has two kinds of effects of dehydration and purification, therefore dehydration purifies two steps and completes in above-mentioned raw materials tank simultaneously, obtained solvent quality is high, so that the performance of finished product lithium battery is good, and simplify the process flow of solvent dehydration purification, equipment investment is reduced, occupation area of equipment is reduced.

Description

Head tank that is a kind of while being dehydrated purification

Technical field

The utility model relates to field of lithium, more particularly to a kind of head tank for being dehydrated purification simultaneously.

Background technique

Currently, the solvent of lithium battery is carbonic acid lipid, including but not limited to dimethyl carbonate DMC (Dimethyl Carbonate), diethyl carbonate DEC (Diethyl Carbonate), propene carbonate PC (Propylene Carbonate), the impurity in these solvent materials is including but not limited to ethyl alcohol, ethylene glycol.

In the prior art, needed for the solvent materials of above-mentioned lithium battery need just obtain by two steps of dehydration and purification Solvent, being dehydrated and purify the two steps is successively carried out in two sets of equipment, the solvent materials first pass through head tank into Row dehydration, then impurity alcohol is removed to purify by adsorption column, however the solvent materials purify after completing dehydration During can absorb water again, cause the poor quality of solvent, to influence the performance of finished product lithium battery.

For problem poor quality after the purification of lithium battery solvent dehydration in the prior art, the utility model proposes a kind of new Solution.

Utility model content

In view of the shortcomings of the prior art, the utility model provides a kind of head tanks for being dehydrated purification simultaneously.

The utility model is realized by following technological means solves above-mentioned technical problem:

Head tank that is a kind of while being dehydrated purification includes: tank body, feed pipe, spray thrower, upper filter baffle, molecular sieve, changes sieve Mouth, lower filter baffle, stabilizer blade, discharge nozzle, discharge duct, feed back pipe, vacuum tube, nitrogen tube, rupture disk, safety valve, inlet valve, feed back Valve, outlet valve, pump, discharge valve；The molecular sieve includes: 3A molecular sieve, 4A molecular sieve, 5A molecular sieve, and the 3A molecular sieve is The aperture of a kind of potassium sodium form alumino-silicate, crystal is 3A, and the 4A molecular sieve is a kind of sodium form alumino-silicate, and the aperture of crystal is 4A, the 5A molecular sieve are a kind of calcium sodium form alumino-silicates, and the aperture of crystal is 5A.

Preferably, in the molecular sieve, the quality accounting of the 3A molecular sieve is 10%~50%, the 4A molecular sieve Quality accounting is 20%~60%, the quality accounting of the 5A molecular sieve is 30%~70%.

Preferably, it is provided with the stabilizer blade below the tank body, the top of the tank is provided with the vacuum tube, the nitrogen Tracheae, the rupture disk, the safety valve, the feed pipe and the feed back pipe, the feed pipe and the feed back pipe are passed through Be connected to after the tank body with the spray thrower, the upper filter baffle and the lower filter baffle be installed in the tank body, it is described on Filter and be filled with the molecular sieve between baffle and the lower filter baffle, the tank body side offer described in change sieve mouth, the tank Body bottom connects the discharge nozzle, and the discharge nozzle connects the pump, and the pump passes through threeway and the discharge duct and described time Expects pipe connection, the feed pipe, the discharge duct, are successively separately installed with the charging on the feed back pipe at the discharge nozzle Valve, the outlet valve, the discharge valve, the material returning valve.

Preferably, the upper filter baffle plate setting is zigzag.

Utility model has the advantages that

(1) compared with prior art, the molecular sieve that the utility model uses includes: 3A molecular sieve, 4A molecular sieve, 5A point Son sieve, the 3A molecular sieve are a kind of potassium sodium form alumino-silicates, and the aperture of crystal is 3A (0.3nm), and absorption diameter is not more than 3A Molecule, to be dehydrated, the 4A molecular sieve is a kind of sodium form alumino-silicate, and the aperture of crystal is 4A (0.4nm), adsorbs diameter Molecule no more than 4A, to the impurity alcohol being dehydrated and remove in solvent, the 5A molecular sieve is a kind of calcium sodium form alumino-silicate, The aperture of crystal is 5A (0.5nm), and absorption diameter is not more than the molecule of 5A, removes the significant effect of Impurities In Solvents alcohol, so that The molecular sieve has two kinds of effects of dehydration and purification, therefore is dehydrated and purifies two steps while completing in above-mentioned raw materials tank, obtains The solvent quality arrived is high, so that the performance of finished product lithium battery is good, and the technique that could be completed with two sets of equipment in the prior art The utility model only can be completed with above-mentioned a set of equipment, simplifies the process flow of the dehydration purification of lithium battery solvent, reduces The investment of equipment, reduces the occupied area of equipment.

(2) solvent in the present embodiment is sprayed on jagged upper filter baffle by spray thrower, so that solvent and upper filter Baffle contact is more abundant, and dehydration and purification efficiency are higher.

Detailed description of the invention

The head tank structural schematic diagram of dehydration purification while Fig. 1 is described in the utility model embodiment.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.

Embodiment

As shown in Figure 1, present embodiments provide head tank that is a kind of while being dehydrated purification, the head tank include: tank body 10, Feed pipe 11, upper filter baffle 13, molecular sieve 14, changes sieve mouth 15, lower filter baffle 16, stabilizer blade 17, discharge nozzle 18, unloads spray thrower 12 Expects pipe 19, vacuum tube 111, nitrogen tube 112, rupture disk 113, safety valve 114, inlet valve 21, material returning valve 22, goes out feed back pipe 110 Expect valve 23, pump 24, discharge valve 25；The molecular sieve 14 includes: 3A molecular sieve, 4A molecular sieve, 5A molecular sieve, the 3A molecular sieve It is a kind of potassium sodium form alumino-silicate, the aperture of crystal is 3A (0.3nm), and absorption diameter is not more than the molecule of 3A, to be dehydrated, institute Stating 4A molecular sieve is a kind of sodium form alumino-silicate, and the aperture of crystal is 4A (0.4nm), and absorption diameter is not more than the molecule of 4A, uses To be dehydrated and remove the impurity alcohol in solvent, the 5A molecular sieve is a kind of calcium sodium form alumino-silicate, and the aperture of crystal is 5A (0.5nm), absorption diameter are not more than the molecule of 5A, remove the significant effect of Impurities In Solvents alcohol.

In the molecular sieve 14, the quality accounting of the 3A molecular sieve is the quality of 10%~50%, the 4A molecular sieve Accounting is 20%~60%, the quality accounting of the 5A molecular sieve is 30%~70%, according to water content in solvent materials and miscellaneous Matter content is adjusted the component of molecular sieve 14, reaches effect similar in dehydration and purification progress, so that solvent is de- Water purification is completed at the same time, and improves working efficiency.

It is provided with the stabilizer blade 17 below the tank body 10, is used to support the tank body 10 and stands in plane, the tank Be provided at the top of body 10 vacuum tube 111, the nitrogen tube 112, the rupture disk 113, the safety valve 114, it is described into Expects pipe 11 and the feed back pipe 110, the vacuum tube 111 and the nitrogen tube 112 are used to balance 10 internal pressure of tank body, described Explosion when pressure anomaly in tank body of rupture disk 113, aerial drainage decompression, protection whole system safety, the safety valve 114 is in tank body When interior pressure rise is more than specified value, by outside tank discharge gas come to prevent in tank body pressure be more than specified value, it is described into Expects pipe 11 and the feed back pipe 110 are connected to after being passed through the tank body 10 with the spray thrower 12, are installed in the tank body 10 Filter baffle 13 and the lower filter baffle 16 are stated, the molecule is filled between the upper filter baffle 13 and the lower filter baffle 16 Sieve 14,10 side of tank body offer described change and sieve mouth 15, and 10 bottom of tank body connects the discharge nozzle 18, the discharging Pipe 18 connects the pump 24, and the pump 24 is connect by threeway with the discharge duct 19 and the feed back pipe 110, the feed pipe 11, the discharge nozzle 18, the discharge duct 19, be successively separately installed on the feed back pipe 110 inlet valve 21, it is described go out Expect valve 23, the discharge valve 25, the material returning valve 22.

As shown in Figure 1, present embodiments provide the application method of above-mentioned raw materials tank, the application method successively include step such as Under:

The first step, feeding:

Inlet valve 21, material returning valve 22, outlet valve 23 are opened, discharge valve 25 is closed, solvent is passed through tank body from feed pipe 11 10, the solvent is sprayed by spray thrower 12 onto upper filter baffle 13, and the solvent passes through excessively after passing through the upper filter baffle 13 Son sieve 14 applies power using pump 24 and returns to tank by feed back pipe 110 using lower filter baffle 16 using discharge nozzle 18 10 top of body, then through the spray of spray thrower 12 on upper filter baffle 13；

Second step, dehydration purification:

Continue the first step, inlet valve 21 closed when feed solution reaches 300KG, pump 24 is kept to be continuously applied power, Make repeatedly by upper filter baffle 13, molecular sieve 14 and lower filter baffle 16 in the solvent cyclic process in tank body 10, to reach de- The effect of water and purification, the process is for 90 minutes~and 120 minutes；

Third step, discharging:

To the solvent sampling and testing in circulation, test result opens discharge valve 25 after reaching standard, closes material returning valve 22, will Solvent filling storage after dehydration purification.

Molecular sieve 14 in the present embodiment includes: 3A molecular sieve, 4A molecular sieve, 5A molecular sieve, the 3A molecular sieve is one Kind potassium sodium form alumino-silicate, the aperture of crystal are 3A (0.3nm), and absorption diameter is not more than the molecule of 3A, to be dehydrated, the 4A Molecular sieve is a kind of sodium form alumino-silicate, and the aperture of crystal is 4A (0.4nm), and absorption diameter is not more than the molecule of 4A, to de- Impurity alcohol in water and removal solvent, the 5A molecular sieve are a kind of calcium sodium form alumino-silicates, and the aperture of crystal is 5A (0.5nm), absorption diameter are not more than the molecule of 5A, the significant effect of Impurities In Solvents alcohol are removed, so that the molecular sieve 14 has Two kinds of effects of dehydration and purification, therefore be dehydrated two steps of purification and completed in above-mentioned raw materials tank simultaneously, obtained solvent quality Height, so that the performance of finished product lithium battery is good, and the technique the utility model that could be completed with two sets of equipment in the prior art It can be completed with above-mentioned a set of equipment, simplify the process flow of the dehydration purification of lithium battery solvent, reduce the investment of equipment, Reduce the occupied area of equipment；Solvent in the present embodiment is sprayed on jagged upper filter baffle 13 by spray thrower 12, So that solvent contacted with upper filter baffle 13 it is more abundant, dehydration and purification it is more efficient.

It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (4)

1. a kind of head tank for being dehydrated purification simultaneously, it is characterised in that: the head tank include: tank body (10), feed pipe (11), Spray thrower (12), molecular sieve (14), changes sieve mouth (15), lower filter baffle (16), stabilizer blade (17), discharge nozzle at upper filter baffle (13) (18), discharge duct (19), feed back pipe (110), vacuum tube (111), nitrogen tube (112), rupture disk (113), safety valve (114), Inlet valve (21), material returning valve (22), outlet valve (23), pump (24), discharge valve (25)；The molecular sieve (14) includes: 3A molecule Sieve, 4A molecular sieve, 5A molecular sieve.

2. a kind of head tank for being dehydrated purification simultaneously according to claim 1, it is characterised in that: the molecular sieve (14) In, the quality accounting of the 3A molecular sieve is 10%~50%, the quality accounting of the 4A molecular sieve is 20%~60%, described The quality accounting of 5A molecular sieve is 30%~70%.

3. a kind of head tank for being dehydrated purification simultaneously according to claim 1, it is characterised in that: below the tank body (10) It is provided with the stabilizer blade (17), the vacuum tube (111), the nitrogen tube (112), described is provided at the top of the tank body (10) Rupture disk (113), the safety valve (114), the feed pipe (11) and the feed back pipe (110), the feed pipe (11) and The feed back pipe (110) is passed through the tank body (10) and is connected to afterwards with the spray thrower (12), installs in the tank body (10) Filter baffle (13) and the lower filter baffle (16) are stated, is filled between the upper filter baffle (13) and the lower filter baffle (16) The molecular sieve (14), tank body (10) side offer described change and sieve mouth (15), described in tank body (10) the bottom connection Discharge nozzle (18), the discharge nozzle (18) connect the pump (24), the pump (24) pass through threeway and the discharge duct (19) and Feed back pipe (110) connection, the feed pipe (11), the discharge nozzle (18), the discharge duct (19), the feed back pipe (110) inlet valve (21), the outlet valve (23), the discharge valve (25), the material returning valve are successively separately installed on (22)。

4. any a kind of head tank for being dehydrated purification simultaneously according to claim 1~3, it is characterised in that: the upper filter Baffle (13) is set as zigzag.