CN108795496B - Paraffin oil separation and extraction device - Google Patents
Paraffin oil separation and extraction device Download PDFInfo
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- CN108795496B CN108795496B CN201810927258.4A CN201810927258A CN108795496B CN 108795496 B CN108795496 B CN 108795496B CN 201810927258 A CN201810927258 A CN 201810927258A CN 108795496 B CN108795496 B CN 108795496B
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- 239000005662 Paraffin oil Substances 0.000 title claims abstract description 73
- 238000000605 extraction Methods 0.000 title claims abstract description 28
- 238000000926 separation method Methods 0.000 title claims abstract description 24
- 230000005291 magnetic effect Effects 0.000 claims abstract description 67
- 238000001914 filtration Methods 0.000 claims abstract description 34
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 14
- 239000002893 slag Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000012528 membrane Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 239000012169 petroleum derived wax Substances 0.000 description 4
- 235000019381 petroleum wax Nutrition 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003073 embolic effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000002145 thermally induced phase separation Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax
- C10G73/36—Recovery of petroleum waxes from other compositions containing oil in minor proportions, from concentrates or from residues; De-oiling, sweating
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a paraffin oil separation and extraction device, and relates to the field of lithium ion battery processing technology. The paraffin oil separation and extraction device is used for separating and extracting paraffin oil in wet lithium ion battery membrane oil-containing rim charge, and the paraffin oil separation and extraction device comprises: the device comprises a squeezer, a magnetic filter, a first filter and a second filter which are sequentially connected, wherein the precision of the second filter is greater than that of the first filter; the squeezer is used for physically squeezing, the magnetic filter is used for performing magnetic filtration, and the first filter and the second filter are used for performing primary filtration and secondary filtration. The paraffin oil in the oil film rim charge generated in the wet lithium ion battery diaphragm production process is extracted by adopting a physical squeezing and multistage filtering mode, the paraffin oil produced during squeezing is collected by using a squeezer for physical squeezing, and then the paraffin oil is filtered step by using a special multistage high-precision filter, so that the recovered paraffin oil with better quality is finally obtained.
Description
Technical Field
The invention relates to the field of lithium ion battery processing technology, in particular to a paraffin oil separating and extracting device.
Background
At present, the preparation process of the lithium ion battery diaphragm is mainly divided into two types: dry processes (platelet separation) and wet processes (thermally induced phase separation). Wet process is generally used for manufacturing high-end films because the pore size, distribution and porosity can be well controlled, and wet separator products are becoming more and more popular in the market in recent years. In the wet diaphragm production process, a solvent with high boiling point and low volatility is used as a pore-forming agent, and in the extraction procedure, the solvent with low boiling point and high volatility is used for eluting the pore-forming agent, so that the diaphragm forms micropores. Paraffin oil is widely used as pore-forming agent in the production process of wet lithium ion battery diaphragm due to its characteristics of high boiling point, high flash point, low volatility, low toxicity, etc.
In the wet process diaphragm production process, in order to ensure that the film surface is smooth after the film enters the extraction tank, the phenomenon of wrinkling or curling is avoided, the parts of the two sides clamped by the transverse zipper clips are cut off before the film enters the extraction tank, so that the appearance of the film is smooth when the film passes through the extraction tank.
The wet diaphragm contains 65-70% of paraffin oil by mass ratio before entering the extraction tank, the diaphragm is called an oil film at this time, the cut oil film rim charge is generally directly treated as waste, and a good recovery method is not provided for the paraffin oil contained in the rim charge temporarily, so that great waste is caused.
Disclosure of Invention
The invention aims to provide a paraffin oil separation and extraction device, which adopts a physical squeezing and multistage filtering mode to extract paraffin oil in oil film rim charge generated in the production process of a wet lithium ion battery diaphragm, wherein a squeezer is used for physical squeezing at first, the paraffin oil produced during squeezing is collected, and then a special multistage high-precision filter is used for stage-by-stage filtration, so that the recovered paraffin oil with better quality is finally obtained.
Embodiments of the present invention are implemented as follows:
the utility model provides a paraffin oil separation extraction element for separation and extraction of paraffin oil in wet process lithium ion battery diaphragm oiliness rim charge, paraffin oil separation extraction element includes:
the device comprises a squeezer, a magnetic filter, a first filter and a second filter which are sequentially connected, wherein the precision of the second filter is greater than that of the first filter;
the squeezer is used for physically squeezing, the magnetic filter is used for performing magnetic filtration, and the first filter and the second filter are used for performing primary filtration and secondary filtration.
Further, in a preferred embodiment of the present invention, the press is a screw press comprising a frame, a feed assembly, a transmission assembly, a press assembly, a drive assembly, a discharge assembly, and a drip pan disposed on the frame;
the feeding assembly comprises a feeding port for inputting paraffin oil, the discharging assembly comprises a discharging port for outputting the paraffin oil after physical squeezing and a slag discharging port for outputting slag after physical squeezing, the oil receiving disc is located below the discharging port, and the driving assembly is used for driving the transmission assembly to drive the squeezing assembly to physically squeeze.
Further, in the preferred embodiment of the invention, the driving component is a driving motor, the transmission component is a rotating shaft in transmission connection with the driving motor and a variable speed nut in transmission connection with the rotating shaft, the pressing component is a pressing screw sleeved on the rotating shaft, the discharge hole is positioned below the pressing screw, and the slag discharging hole is positioned at the end part of the frame;
the driving motor is configured to drive the rotating shaft and the variable speed nut to rotate, and then drives the pressing screw to press, so that the paraffin oil after being physically pressed is discharged from the discharge hole to the oil receiving disc, and the slag after being physically pressed is discharged from the slag discharging hole.
Further, in the preferred embodiment of the present invention, the materials of the screw press and the material contact are SUS316L stainless steel.
Further, in a preferred embodiment of the present invention, a liquid discharge pump is provided between the squeezer and the magnetic filter, the liquid discharge pump is connected to the oil receiving pan through a pipe, and the liquid discharge pump is configured to convey the physically squeezed paraffin oil to the magnetic filter when the paraffin oil in the oil receiving pan reaches a preset liquid level.
Further, in a preferred embodiment of the present invention, the liquid discharge pump is a diaphragm pump or a magnetic pump.
Further, in a preferred embodiment of the present invention, the magnetic filter includes a housing, a plurality of magnetic assemblies disposed in the housing, the housing having a first oil inlet and a first oil outlet, the plurality of magnetic assemblies being sequentially disposed in a direction from the first oil inlet to the first oil outlet, and each magnetic assembly including a sleeve and a magnetic rod disposed in the sleeve.
Further, in the preferred embodiment of the invention, the magnetic rod is made of a high-coercivity ferromagnetic material, the magnetic force is 10000-15000 Gs, and the sleeve is a blocking filter screen.
Further, in a preferred embodiment of the present invention, the first filter includes a first cylinder and a plurality of first filter elements disposed in the first cylinder, the first cylinder having a second oil inlet and a second oil outlet, the second oil inlet being in communication with the first oil outlet;
the second filter comprises a second cylinder body and a plurality of second filter cores arranged in the second cylinder body, the second cylinder body is provided with a third oil inlet and a third oil removing port, and the third oil inlet is communicated with the second oil outlet.
Further, in the preferred embodiment of the present invention, the first filter element and the second filter element are both PP folded filter elements, and the filtering precision of the first filter element is 0.5-1 μ, and the filtering precision of the second filter element is 0.1-0.5 μ.
The embodiment of the invention has at least the following advantages or beneficial effects:
the embodiment of the invention provides a paraffin oil separation and extraction device, which is used for separating and extracting paraffin oil from wet lithium ion battery diaphragm oil-containing rim charge, and comprises the following components: the device comprises a squeezer, a magnetic filter, a first filter and a second filter which are sequentially connected, wherein the precision of the second filter is greater than that of the first filter; the squeezer is used for physically squeezing, the magnetic filter is used for performing magnetic filtration, and the first filter and the second filter are used for performing primary filtration and secondary filtration. The paraffin oil in the oil film rim charge generated in the wet lithium ion battery diaphragm production process is extracted by adopting a physical squeezing and multistage filtering mode, the paraffin oil produced during squeezing is collected by using a squeezer for physical squeezing, and then the paraffin oil is filtered step by using a special multistage high-precision filter, so that the recovered paraffin oil with better quality is finally obtained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a paraffin oil separation and extraction device according to an embodiment of the present invention;
fig. 2 is a schematic view of a press according to an embodiment of the present invention;
FIG. 3 is a schematic view of a magnetic filter according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first filter according to an embodiment of the present invention.
Icon: 100-paraffin oil separating and extracting device; 101-a squeezer; 103-a magnetic filter; 105-a first filter; 109-a frame; 111-a feed inlet; 113-a discharge port; 115-oil pan; 117-slag discharge port; 119-driving a motor; 121-a rotating shaft; 123-a speed nut; 125-press screw; 127-a liquid discharge pump; 129-housing; 131-a magnetic assembly; 133-a first oil inlet; 135-a first oil outlet; 137-sleeve; 139-magnetic bar; 141-a first cylinder; 143-a first filter element; 145-a second oil inlet; 147-a second oil outlet; 149—a first handle; 151-a second handle; 153-clamping screw; 155-a first cover; 157-a second cover; 159-a first flange; 169-a base; 171-a second flange; 173-pressure gauge.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In describing embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Fig. 1 is a schematic structural diagram of a paraffin oil separation and extraction apparatus 100 according to the present embodiment. Referring to fig. 1, the present embodiment provides a paraffin oil separation and extraction device 100, which is used for separating and extracting paraffin oil from wet lithium ion battery membrane oil-containing rim charge, wherein the paraffin oil separation and extraction device 100 includes a squeezer 101, a magnetic filter 103, a first filter 105 and a second filter which are sequentially connected, and the precision of the second filter is greater than that of the first filter 105; wherein the press 101 is used for physical pressing, the magnetic filter 103 is used for magnetic filtration, and the first filter 105 and the second filter are used for primary filtration and secondary filtration. The paraffin oil in the oil film rim charge generated in the wet lithium ion battery diaphragm production process is extracted by adopting a physical squeezing and multistage filtering mode, the paraffin oil produced during squeezing is collected by using a squeezer 101, and then the paraffin oil is filtered step by using a special multistage high-precision filter, so that the recovered paraffin oil with better quality is finally obtained.
Fig. 2 is a schematic structural view of the press 101 according to the present embodiment. Referring to fig. 1 and 2, in the present embodiment, the press 101 is a screw press 101. The screw press 101 can be used for effectively squeezing and dewatering the input paraffin oil and outputting the extruded paraffin oil, so that the compressed material is effectively discharged, and sundries in the paraffin oil are greatly reduced.
In detail, the screw press 101 includes a frame 109, a feeding assembly, a transmission assembly, a pressing assembly, a driving assembly, a discharging assembly, and an oil pan 115 provided to the frame 109; the feeding assembly comprises a feeding hole 111 for inputting paraffin oil, the discharging assembly comprises a discharging hole 113 for outputting the paraffin oil after physical squeezing and a slag discharging hole 117 for outputting slag after physical squeezing, the oil receiving disc 115 is located below the discharging hole 113, and the driving assembly is used for driving the transmission assembly to drive the squeezing assembly to perform physical squeezing. The material is input from feed inlet 111, and drive assembly drive transmission subassembly drives and squeezes the subassembly and squeeze the operation to make the slag charge accessible in the paraffin oil arrange the slag notch 117 output, thereby reduce the debris content in the paraffin oil of discharge, provide the guarantee for subsequent processing.
Specifically, the driving component is a driving motor 119, the transmission component is a rotating shaft 121 in transmission connection with the driving motor 119 and a variable speed nut 123 in transmission connection with the rotating shaft 121, the pressing component is a pressing screw 125 sleeved on the rotating shaft 121, the discharge hole 113 is positioned below the pressing screw 125, and the slag discharge hole 117 is positioned at the end part of the frame 109; the driving motor 119 is configured to drive the rotation shaft 121 and the variable speed nut 123 to rotate, so as to drive the pressing screw 125 to perform pressing operation, so as to discharge the paraffin oil after being physically pressed from the discharge port 113 to the oil receiving pan 115, and discharge the slag after being physically pressed from the slag discharge port 117.
Meanwhile, in the present embodiment, the number of screw presses 101 is one, and a plurality of screw presses 101 connected in series or in parallel may be used to perform a combined action as necessary to improve the working efficiency. Meanwhile, in the present embodiment, the screw press 101 can provide a maximum pressure of 20bar. Of course, in other embodiments of the present invention, the maximum pressure value may be selected according to the requirement, and embodiments of the present invention are not limited thereto.
In the present embodiment, the materials of the screw press 101 and the material are SUS316L stainless steel. The SUS316L stainless steel material can provide excellent corrosion resistance while also having a certain strength, so that the service life of the screw press 101 can be ensured.
Referring to fig. 1 again, in the present embodiment, a liquid discharge pump 127 is disposed between the squeezer 101 and the magnetic filter 103, the liquid discharge pump 127 is connected to the oil receiving pan 115 through a pipeline, and the liquid discharge pump 127 is configured to convey the physically squeezed paraffin oil to the magnetic filter 103 when the paraffin oil in the oil receiving pan 115 reaches a preset level. The liquid discharge pump 127 is mainly used for pumping the paraffin oil after being physically pressed into other filters for further deep filtration.
In the present embodiment, the liquid discharge pump 127 is a diaphragm pump or a magnetic pump. The diaphragm pump is actually a embolic pump, and the body to be infused is separated from the plunger and the pump cylinder by a membrane, thereby protecting the plunger and the pump cylinder. The part of the left side of the diaphragm, which is contacted with the liquid, is made of a corrosion-resistant material or coated with a corrosion-resistant substance, and the right side of the diaphragm is filled with water or oil. The magnetic pump consists of a pump, a magnetic driver and a motor. The key component magnetic driver consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolating sleeve. When the motor drives the outer magnetic rotor to rotate, the magnetic field can penetrate through the air gap and the non-magnetic substance to drive the inner magnetic rotor connected with the impeller to synchronously rotate, so that the non-contact transmission of power is realized, and the dynamic seal is converted into the static seal. Because the pump shaft and the inner magnetic rotor are completely sealed by the pump body and the isolation sleeve, the problems of running, overflowing, dripping and leaking are thoroughly solved, the potential safety hazards of inflammable, explosive, toxic and harmful mediums leaking through the pump seal in the oil refining and chemical industry are eliminated, and the physical and mental health and the safety production of workers are forcefully ensured. Of course, in other embodiments of the present invention, the type of the liquid discharge pump 127 may be selected according to the requirements, and embodiments of the present invention are not limited thereto.
Fig. 3 is a schematic structural diagram of the magnetic filter 103 according to the present embodiment. Referring to fig. 1 to 3, in the present embodiment, the magnetic filter 103 includes a housing 129, and a plurality of magnetic assemblies 131 disposed in the housing 129, wherein the housing 129 has a first oil inlet 133 and a first oil outlet 135, the plurality of magnetic assemblies 131 are sequentially disposed in a direction from the first oil inlet 133 to the first oil outlet 135, and a first flange 159 is connectable to a pipeline of the first oil outlet 135. And each magnetic assembly 131 includes a sleeve 137 and a magnetic rod 139 disposed within the sleeve 137. The magnetic filter 103 is mainly arranged to adsorb metal impurities in the paraffin oil through the magnetic rod 139, so that the purity of the discharged paraffin oil is improved.
Referring to fig. 3 again, in the present embodiment, the housing 129 is further provided with a first cover 155 located above the magnetic assembly 131, the first cover 155 is a sleeve 137 cover, and the sleeve 137 cover is used to close the opening of the housing 129, and close the magnetic assembly 131 to the housing 129, so as to ensure normal operation of the filtering operation. Meanwhile, a second cover 157 is further arranged, the second cover 157 is used for fixing the magnetic rod 139 in the sleeve 137, stability of the magnetic rod 139 is improved, and the second cover 157 is fixed through the clamping screw 153. And a first handle 149 for facilitating opening of the first cover 155 and a second handle 151 for facilitating opening of the second cover 157 are provided above the second cover 157.
In the preferred embodiment, the magnetic rod 139 is made of a ferromagnetic material with high coercivity, the magnetic force is 10000-15000 Gs, and the sleeve 137 is a blocking screen. The magnetic rod 139 of this range can effectively adsorb metal impurities. Meanwhile, the blocking filter screen arranged outside can effectively adsorb other impurities, and simultaneously fix the adsorbed metal impurities, so that the filtering quality is improved.
Fig. 4 is a schematic structural diagram of the first filter 105 according to the present embodiment. Referring to fig. 1 to 4, in the present embodiment, the first filter 105 includes a first cylinder 141 and a plurality of first filter elements 143 disposed in the first cylinder 141, the first cylinder 141 has a second oil inlet 145 and a second oil outlet 147, and the second oil inlet 145 communicates with the first oil outlet 135. The second filter has the same structure as the first filter 105, and this embodiment will not be described in the drawings. The second filter comprises a second cylinder and a plurality of second filter cores arranged in the second cylinder, the second cylinder is provided with a third oil inlet and a third oil removing port, and the third oil inlet is communicated with a second oil outlet 147. Impurities in the petroleum wax are sufficiently removed through the impurity removal effect of the first filter 105 and the second filter, so that the petroleum wax output finally can be reused.
In the present embodiment, the number of the first filters 105 and the second filters is one, and the first filters and the second filters are arranged in series. In other embodiments of the present invention, the number of the first filters 105 and the second filters may be plural, and the embodiments of the present invention are not limited by the parallel connection or the serial connection.
Meanwhile, the first filter 105 and the second filter are disposed above the base 169, the pressure gauge 173 can be disposed above the first filter 105 and the second filter, and the second flange 171 can be disposed on the first cylinder 141 and the second cylinder of the first filter 105 and the second filter.
In this embodiment, the first filter element 143 and the second filter element are PP folded filter elements, and the filtering precision of the first filter element 143 is 0.5-1 μ, and the filtering precision of the second filter element is 0.1-0.5 μ. The precision of first filter core 143 is less than the precision of second filter core for comparatively big granule's impurity in the petroleum wax can obtain the filtration of first filter core 143, and the small granule impurity can obtain the filtration effectively of second filter core, and then guarantees the filter effect of whole providing, then guarantees the quality of petroleum wax. And preferably, the first filter element 143 has a filtration accuracy of 1 μ and the second filter element has a filtration accuracy of 0.22 μ. In other embodiments of the present invention, the precision of the first filter element 143 and the second filter element may be selected according to the requirement, and the embodiments of the present invention will not be described again.
In summary, the paraffin oil separating and extracting device 100 provided by the embodiment of the invention adopts the physical squeezing and multi-stage filtering modes to extract the paraffin oil in the oil film rim charge generated in the wet lithium ion battery diaphragm production process, and the paraffin oil produced during squeezing is collected by using the squeezer 101 to be physically squeezed, and then is filtered step by using the special multi-stage high-precision filter, so that the recovered paraffin oil with better quality is finally obtained.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a paraffin oil separation extraction element for separation and extraction of paraffin oil in wet process lithium ion battery diaphragm oiliness rim charge, its characterized in that, paraffin oil separation extraction element includes:
the device comprises a squeezer, a magnetic filter, a first filter and a second filter which are sequentially connected, wherein the precision of the second filter is greater than that of the first filter;
the squeezer is used for physically squeezing, the magnetic filter is used for performing magnetic filtration, and the first filter and the second filter are used for performing primary filtration and secondary filtration;
the first filter comprises a first cylinder and a plurality of first filter elements arranged in the first cylinder, the second filter comprises a second cylinder and a plurality of second filter elements arranged in the second cylinder, the first filter elements and the second filter elements are PP folding filter elements, the filtering precision of the first filter elements is 0.5-1 mu, and the filtering precision of the second filter elements is 0.1-0.5 mu;
the squeezer is a screw squeezer, and comprises a frame, a feeding component, a transmission component, a squeezing component, a driving component, a discharging component and an oil receiving disc, wherein the feeding component, the transmission component, the squeezing component, the driving component, the discharging component and the oil receiving disc are arranged on the frame; the materials of the screw squeezer and the materials are SUS316L stainless steel; a liquid discharge pump is arranged between the squeezer and the magnetic filter and is connected with the oil receiving disc through a pipeline, and the liquid discharge pump is configured to convey the paraffin oil after physical squeezing to the magnetic filter when the paraffin oil in the oil receiving disc reaches a preset liquid level.
2. The paraffin oil separation and extraction device according to claim 1, wherein:
the feeding assembly comprises a feeding hole for inputting paraffin oil, the discharging assembly comprises a discharging hole for outputting the paraffin oil after physical squeezing and a slag discharging hole for outputting slag after physical squeezing, the oil receiving disc is located below the discharging hole, and the driving assembly is used for driving the driving assembly to drive the squeezing assembly to physically squeeze.
3. The paraffin oil separation and extraction device according to claim 2, wherein:
the driving assembly is a driving motor, the transmission assembly is a rotating shaft in transmission connection with the driving motor and a variable speed nut in transmission connection with the rotating shaft, the squeezing assembly is a squeezing screw sleeved on the rotating shaft, the discharge hole is positioned below the squeezing screw, and the slag discharge hole is positioned at the end part of the frame;
the driving motor is configured to drive the rotating shaft and the variable speed nut to rotate so as to drive the pressing screw to press, so that the paraffin oil after physical pressing is discharged from the discharge port to the oil receiving disc, and the slag after physical pressing is discharged from the slag discharge port.
4. The paraffin oil separation and extraction device according to claim 1, wherein:
the liquid discharge pump is a diaphragm pump or a magnetic pump.
5. The paraffin oil separation and extraction device according to claim 1, wherein:
the magnetic filter comprises a shell and a plurality of magnetic force components arranged in the shell, wherein the shell is provided with a first oil inlet and a first oil outlet, the magnetic force components are sequentially arranged in the direction from the first oil inlet to the first oil outlet, and each magnetic force component comprises a sleeve and a magnetic force rod arranged in the sleeve.
6. The paraffin oil separation and extraction device as defined in claim 5, wherein:
the magnetic rod is made of a high-coercivity ferromagnetic material, the magnetic force is 10000-15000 Gs, and the sleeve is a blocking filter screen.
7. The paraffin oil separation and extraction device as defined in claim 5, wherein:
the first cylinder body is provided with a second oil inlet and a second oil outlet, and the second oil inlet is communicated with the first oil outlet;
the second cylinder body is provided with a third oil inlet and a third oil outlet, and the third oil inlet is communicated with the second oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810927258.4A CN108795496B (en) | 2018-08-14 | 2018-08-14 | Paraffin oil separation and extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810927258.4A CN108795496B (en) | 2018-08-14 | 2018-08-14 | Paraffin oil separation and extraction device |
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| Publication Number | Publication Date |
|---|---|
| CN108795496A CN108795496A (en) | 2018-11-13 |
| CN108795496B true CN108795496B (en) | 2024-04-09 |
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| CN201810927258.4A Active CN108795496B (en) | 2018-08-14 | 2018-08-14 | Paraffin oil separation and extraction device |
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