CN112094216B - High-purity N-methyl pyrrolidone purification device with adsorption function - Google Patents
High-purity N-methyl pyrrolidone purification device with adsorption function Download PDFInfo
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- CN112094216B CN112094216B CN202010965339.0A CN202010965339A CN112094216B CN 112094216 B CN112094216 B CN 112094216B CN 202010965339 A CN202010965339 A CN 202010965339A CN 112094216 B CN112094216 B CN 112094216B
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/267—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a high-purity N-methyl pyrrolidone purifying device with adsorption function, which comprises an adsorption component I, an adsorption group II, a semiconductor component, an outer cover, a fixed plate A, a filter element A, a fixed plate B, a filter element B, a fixed plate C, a filter element C, a tank body, a motor, a rotating shaft, a side cover, a molecular sieve membrane sleeve, a supporting net, active carbon, a heat insulation cover, a partition plate, a semiconductor refrigerator, a circulation pipe I and a circulation pipe II, wherein firstly, through a plurality of groups of preliminary purification designs, the preliminary adsorption and filtration of large particle foreign matters, magnetic particles and the like in the N-methyl pyrrolidone are convenient, in addition, the replacement and disassembly are convenient, the problem of blockage after long-term use is avoided, secondly, the adsorption effect is greatly improved due to the adoption of a centrifugal molecular secondary purification mechanism, the purification efficiency is improved, and finally, the semiconductor temperature control structure is adopted, so that the N-methyl pyrrolidone can be heated and evaporated by the previous process, but also can be cooled in time to finish the final state as soon as possible.
Description
Technical Field
The invention relates to the technical field of N-methyl pyrrolidone purification, in particular to a high-purity N-methyl pyrrolidone purification device with an adsorption function.
Background
With the rapid development of scientific technology and the continuous application of lithium batteries, in the production of lithium batteries, because of the strong hygroscopicity of N-methylpyrrolidone (NMP), a galvanized iron barrel or a plastic barrel is generally adopted for transportation and storage, poor sealing is easy to occur, the moisture content is increased, and the grade of the NMP is reduced. The reagent grade NMP with the purity of more than or equal to 99.9 percent contains trace moisture of less than or equal to 0.01 percent, the electronic grade NMP with the purity of more than or equal to 99.9 percent contains trace moisture of less than or equal to 0.02 percent, and the common grade NMP with the purity of more than or equal to 99.8 percent contains trace moisture of less than or equal to 0.03 percent. The dispersion of battery powder and the adhesiveness of PVDF are deteriorated by a trace amount of water in NMP, and the cycle performance and safety performance of the battery are affected by heavy metal ions (such as Fe, Na, Mg, Cu and the like) brought in the process of preparing NMP. The higher the grade of NMP used in the lithium ion battery batching process, the better the performance. Chinese patent CN204689921U discloses an N-methylpyrrolidone purification device, which comprises a pretreatment tank, a first filtration tank, a second filtration tank and a finished product tank, wherein the bottom of the pretreatment tank is connected with the bottom of the first filtration tank, the top of the first filtration tank and the top of the second filtration tank, and the bottom of the second filtration tank and the top of the finished product tank through pipelines respectively, and the pretreatment tank is filled with a molecular sieve. Although the pretreatment tank is filled with the molecular sieve, the first filter tank and the second filter tank are filled with the activated carbon, the adsorption effect of the molecular sieve and the activated carbon and the multistage filtering effect of the activated carbon are utilized to reduce the concentration of trace moisture and heavy metal ions in the N-methylpyrrolidone, so that the purity of the N-methylpyrrolidone is improved. However, the above-mentioned N-methylpyrrolidone purification apparatus has a complicated structure, requires a lot of equipment, and has a complicated process, and particularly, when N-methylpyrrolidone is dehumidified and purified, the efficiency is low, and the utilization rate of the molecular sieve is low due to the conventional arrangement. Therefore, in view of the above drawbacks, it is necessary to design a high purity N-methylpyrrolidone purifying apparatus with adsorption function.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a high-purity N-methyl pyrrolidone purifying device with adsorption function, which solves the problems brought forward by the background technology.
In order to solve the technical problems, the technical scheme of the invention is as follows: a high-purity N-methyl pyrrolidone purification device with adsorption function comprises an I adsorption component, an II adsorption component and a semiconductor component, wherein the I adsorption component comprises an outer cover, an A fixing plate, an A filter element, a B fixing plate, a B filter element, a C fixing plate and a C filter element, the II adsorption component comprises a tank body, a motor, a rotating shaft, a side cover, a molecular sieve membrane sleeve, a supporting net and active carbon, the semiconductor component comprises a temperature insulation cover, a partition plate, a semiconductor refrigerator, an I circulating pipe and an II circulating pipe, the II adsorption component is fixedly arranged on the right side of the I adsorption component, the II adsorption component and the I adsorption component are connected in a welding mode, the semiconductor component is fixedly arranged on the right side of the II adsorption component, the semiconductor component and the II adsorption component are connected in a welding mode, the A fixing plate is fixedly arranged on the left side of the top of the outer cover, the A fixing plate is connected with the outer cover through bolts, the filter element A is fixedly arranged at the bottom of the fixed plate A, the filter element A is connected with the fixed plate A through a bolt, the filter element A is connected with the outer cover through a vertical sliding mode, the fixed plate B is fixedly arranged at the middle end of the top of the outer cover, the fixed plate B is connected with the outer cover through a bolt, the filter element B is fixedly arranged at the bottom of the fixed plate B, the filter element B is connected with the fixed plate B through a bolt, the filter element B is connected with the outer cover through a vertical sliding mode, the fixed plate C is fixedly arranged at the right side of the top of the outer cover, the fixed plate C is connected with the outer cover through a bolt, the filter element C is fixedly arranged at the bottom of the fixed plate C, the filter element C is connected with the fixed plate through a bolt, the filter element C is connected with the outer cover through a vertical sliding mode, the motor is fixedly arranged at the top of the tank body, the motor is connected with the tank body through a bolt, and the rotating shaft is fixedly arranged at the bottom of the motor, the rotating shaft and the motor are connected by a coupling, the rotating shaft and the tank body are connected by rotation, the side cover is fixedly arranged at the upper end in the tank body, the side cover and the tank body are connected by welding, the molecular sieve membrane sleeve is fixedly arranged around the inside of the side cover, the molecular sieve membrane sleeve is connected with the side cover by bolts, the supporting net is fixedly arranged at the lower end in the tank body, the supporting net is connected with the tank body by welding, the activated carbon is arranged at the top of the supporting net, the activated carbon is movably connected with the supporting net, the partition plate is fixedly arranged at the middle end in the heat insulation cover, the partition plate is connected with the heat insulation cover by welding, the semiconductor refrigerator is fixedly arranged in the partition plate, the semiconductor refrigerator is connected with the partition plate by bolts, the I runner pipe is fixedly arranged at the left side in the heat insulation cover, and the I runner pipe is connected with the heat insulation cover by bolts, the II circulation pipe is fixedly arranged on the right side in the heat insulation cover, and the II circulation pipe is connected with the heat insulation cover through bolts.
Further, dustcoat left side still set firmly A suction pump, A suction pump and dustcoat adopt welded connection, A suction pump left side still set firmly the feed liquor pipe, fluid-discharge tube and A suction pump adopt welded connection, the dustcoat right side still set firmly the A connecting pipe, A connecting pipe and dustcoat adopt welded connection.
Furthermore, the filter element A is a metal screen filter element.
Furthermore, the filter element B is a magnetic adsorption filter element.
Furthermore, the filter element C is an activated carbon filter element.
Further, jar body bottom both ends still set firmly the supporting seat around, supporting seat and jar body adopt welded connection, jar body left side upper end still set firmly the governing valve, governing valve and jar body adopt welded connection, just governing valve and A connecting pipe adopt welded connection, jar body bottom still set firmly the B suction pump, B suction pump and jar body adopt welded connection.
Further, the outer wall of the rotating shaft is fixedly provided with a plurality of dispersion plates all around, the dispersion plates are connected with the rotating shaft in a welding mode, a plurality of circulation holes are formed in the dispersion plates, and the circulation holes are circular through holes.
Further, the upper side of the front end of the heat insulation cover is fixedly provided with a control panel, the control panel is connected with the heat insulation cover through bolts, the control panel is connected with a semiconductor refrigerator through electric signals, a B connecting pipe is fixedly arranged on the left side inside the heat insulation cover and is connected with the heat insulation cover through welding, the B connecting pipe is respectively connected with a B suction pump and an I circulation pipe through welding, a liquid discharge pipe is fixedly arranged on the right side inside the heat insulation cover and is connected with the heat insulation cover through welding, and the liquid discharge pipe is connected with the II circulation pipe through welding.
Furthermore, the left side of the semiconductor refrigerator is sequentially and fixedly provided with a plurality of heating ends from top to bottom, the heating ends and the semiconductor refrigerator are integrally formed, the heating ends are connected with the circulation pipe I through bolts, the right side of the semiconductor refrigerator is sequentially and fixedly provided with a plurality of heat absorption ends from top to bottom, the heat absorption ends and the semiconductor refrigerator are integrally formed, and the heat absorption ends are connected with the circulation pipe II through bolts.
Compared with the prior art, the high-purity N-methyl pyrrolidone purification device with the adsorption function has the following advantages:
1. at first, through the design of the multiple groups of preliminary purification, the large-particle foreign bodies, the magnetic particles and the like in the N-methylpyrrolidone can be conveniently subjected to preliminary adsorption filtration, and in addition, the replacement and the disassembly are convenient, so that the problem of blockage after long-term use is avoided.
2. And secondly, a centrifugal molecule secondary purification mechanism is adopted, so that the adsorption effect can be greatly increased, and the purification efficiency is improved.
3. And finally, the semiconductor temperature control structure is adopted, so that the N-methyl pyrrolidone can be heated and evaporated in the previous process, and simultaneously can be cooled in time, and the final state can be completed as soon as possible.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a high purity N-methylpyrrolidone purification apparatus with adsorption function;
FIG. 2 is a plan view of a high purity N-methylpyrrolidone purification apparatus with adsorption function;
FIG. 3 is a sectional view taken along the line A of a high-purity N-methylpyrrolidone purification apparatus having an adsorption function;
FIG. 4 is a perspective view of a high purity N-methylpyrrolidone purification apparatus with adsorption function, FIG. 1;
FIG. 5 is a perspective view of a high purity N-methylpyrrolidone purification apparatus with adsorption function, FIG. 2;
FIG. 6 is a perspective view showing a separation state of a high-purity N-methylpyrrolidone purification apparatus having an adsorption function;
FIG. 7 is an enlarged perspective view of the I-adsorption assembly;
fig. 8 is an enlarged sectional view of the regulating valve portion.
The adsorption device comprises a first adsorption assembly 1, a second adsorption assembly 2, a semiconductor assembly 3, a housing 4, a fixing plate 5, a filter element 6, a fixing plate 7, a filter element 8, a fixing plate 9, a filter element 10, a tank 11, a motor 12, a rotating shaft 13, a side cover 14, a molecular sieve membrane sleeve 15, a supporting net 16, activated carbon 17, a temperature insulation cover 18, a partition plate 19, a semiconductor refrigerator 20, a circulation pipe 21 of I, a circulation pipe 22 of II, a suction pump 401 of A, a liquid inlet pipe 402, a connecting pipe 403 of A, a supporting seat 1101, a regulating valve 1102, a suction pump 1103 of B, a dispersion plate 1301, a circulation hole 1302, a control panel 1801, a connecting pipe 1802 of B, a liquid outlet 1803, a heating end 2001 and a heat absorbing end 2002.
The following detailed description will be further described in conjunction with the above-identified drawings.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments, however, it will be apparent to one skilled in the art that the described embodiments may be practiced without some or all of these specific details, and in other cases well-known process steps have not been described in detail.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, a high purity N-methyl pyrrolidone purifying device with adsorption function comprises an I adsorption component 1, an II adsorption component 2, a semiconductor component 3, an outer cover 4, an a fixing plate 5, an a filter element 6, a B fixing plate 7, a B filter element 8, a C fixing plate 9, a C filter element 10, a tank 11, a motor 12, a rotating shaft 13, a side cover 14, a molecular sieve membrane sleeve 15, a support net 16, activated carbon 17, a thermal insulation cover 18, a partition plate 19, a semiconductor 20, an I circulation pipe 21, and an II circulation pipe 22, wherein the II adsorption component 2 is fixedly arranged at the right side of the I adsorption component 1, the II adsorption component 2 is connected with the I adsorption component 1 by welding, the semiconductor component 3 is fixedly arranged at the right side of the II adsorption component 2, the semiconductor component 3 is connected with the II adsorption component 2 by welding, the fixed plate A5 sets firmly in the left side of the top of the outer cover 4, the fixed plate A5 and the outer cover 4 adopt bolted connection, the filter element A6 sets firmly in the bottom of the fixed plate A5, the filter element A6 and the fixed plate A5 adopt bolted connection, and the filter element A6 and the outer cover 4 adopt up-down sliding connection, the fixed plate B7 sets firmly in the middle end of the top of the outer cover 4, the fixed plate B7 and the outer cover 4 adopt bolted connection, the filter element B8 sets firmly in the bottom of the fixed plate B7, the filter element B8 and the fixed plate B7 adopt bolted connection, and the filter element B8 and the outer cover 4 adopt up-down sliding connection, the fixed plate C9 sets firmly on the right side of the top of the outer cover 4, the fixed plate C9 and the outer cover 4 adopt bolted connection, the fixed C10 sets firmly in the bottom of the fixed plate C9, the filter element C10 and the fixed plate C9 adopt bolted connection, the filter element C10 is connected with the outer cover 4 in a vertical sliding mode, the motor 12 is fixedly arranged at the top of the tank body 11, the motor 12 is connected with the tank body 11 through bolts, the rotating shaft 13 is fixedly arranged at the bottom of the motor 12, the rotating shaft 13 is connected with the motor 12 through a coupler, the rotating shaft 13 is rotatably connected with the tank body 11, the side cover 14 is fixedly arranged at the upper end inside the tank body 11, the side cover 14 is connected with the tank body 11 through welding, the molecular sieve membrane sleeve 15 is fixedly arranged around the inside of the side cover 14, the molecular sieve membrane sleeve 15 is connected with the side cover 14 through bolts, the supporting net 16 is fixedly arranged at the lower end inside the tank body 11, the supporting net 16 is connected with the tank body 11 through welding, the activated carbon 17 is arranged at the top of the supporting net 16, the activated carbon 17 is movably connected with the supporting net 16, the partition plate 19 is fixedly arranged at the middle end inside the temperature-isolating cover 18, the partition plate 19 is connected with the heat insulation cover 18 in a welding mode, the semiconductor refrigerator 20 is fixedly arranged inside the partition plate 19, the semiconductor refrigerator 20 is connected with the partition plate 19 through bolts, the I circulation pipe 21 is fixedly arranged on the left side inside the heat insulation cover 18, the I circulation pipe 21 is connected with the heat insulation cover 18 through bolts, the II circulation pipe 22 is fixedly arranged on the right side inside the heat insulation cover 18, and the II circulation pipe 22 is connected with the heat insulation cover 18 through bolts;
the high-purity N-methylpyrrolidone purification apparatus having an adsorption function has the following functions;
A. the filter element A6, the filter element B8 and the filter element C10 are arranged in the adsorption component I1, so that large-particle foreign matters, magnetic particles and the like in N-methylpyrrolidone can be preliminarily adsorbed and filtered, meanwhile, the A fixing plate 5, the B fixing plate 7 and the C fixing plate 9 are respectively connected with the outer cover 4 through bolts, the convenient disassembly can be carried out, meanwhile, the filter element A6, the filter element B8 and the filter element C10 are in up-and-down sliding connection with the outer cover 4 and can be upwards drawn out, the replacement and disassembly are facilitated, and the problem of blockage after long-term use is solved;
B. the molecular sieve membrane sleeve 15, the supporting net 16 and the activated carbon 17 are arranged in the II adsorption component 2, so that N-methyl pyrrolidone can be further adsorbed and filtered, the purification effect is improved, and meanwhile, the motor 12 can drive the rotating shaft 12 to rotate after being started, so that the dispersing effect of the N-methyl pyrrolidone is improved, the N-methyl pyrrolidone can better pass through the molecular sieve membrane sleeve 15, and the purification efficiency is finally greatly improved;
C. the semiconductor refrigerator 20 is arranged at the middle end in the semiconductor component 3, the left side of the semiconductor refrigerator 20 can be heated, and the right side of the semiconductor refrigerator 20 can be refrigerated, so that the N-methylpyrrolidone can be timely cooled while being heated and evaporated in the previous process, and the final state of the N-methylpyrrolidone can be completed as soon as possible;
the left side of the outer cover 4 is fixedly provided with an A suction pump 401, the A suction pump 401 is connected with the outer cover 4 in a welding mode, the left side of the A suction pump 401 is fixedly provided with a liquid inlet pipe 402, the liquid outlet pipe 402 is connected with the A suction pump 401 in a welding mode, the right side of the outer cover 4 is fixedly provided with an A connecting pipe 403, and the A connecting pipe 403 is connected with the outer cover 4 in a welding mode;
it should be noted that the suction pump 401 a is turned on to pump the N-methylpyrrolidone in the liquid inlet pipe 402 into the outer cover 4, the liquid inlet pipe 402 can be butted with the existing N-methylpyrrolidone production apparatus, so that the external N-methylpyrrolidone can be continuously supplied, the connection pipe 403 a can butt the outer cover 4 and the tank 11, so that the primarily purified N-methylpyrrolidone can be supplied into the tank 11 for the secondary purification;
the filter element A6 is a metal screen filter element;
the filter element A6 is a metal barrier net filter element, so that large-particle foreign matters in the N-methylpyrrolidone can be preliminarily filtered;
the filter element B8 is a magnetic adsorption filter element;
the B filter element 8 is a magnetic adsorption filter element, so that metal particles in N-methylpyrrolidone can be filtered;
the filter element C10 is an activated carbon filter element;
it should be noted that the C filter element 10 is an activated carbon filter element, so that preliminary adsorption filtration can be performed;
the front end and the rear end of the bottom of the tank body 11 are fixedly provided with a supporting seat 1101, the supporting seat 1101 is connected with the tank body 11 in a welding mode, the upper end of the left side of the tank body 11 is fixedly provided with an adjusting valve 1102, the adjusting valve 1102 is connected with the tank body 11 in a welding mode, the adjusting valve 1102 is connected with a connecting pipe 403A in a welding mode, the bottom of the tank body 11 is fixedly provided with a suction pump B1103, and the suction pump B1103 is connected with the tank body 11 in a welding mode;
it should be noted that the supporting seat 1101 can support the tank 11, so that the placing stability is improved, the regulating valve 1102 can facilitate flow rate regulation, so as to meet different operation requirements, and the suction effect on the upper end inside the tank 11 can be improved after the suction pump 1103B is turned on, so as to improve the flow speed of the N-methylpyrrolidone towards the lower end;
a plurality of dispersion plates 1301 are fixedly arranged on the periphery of the outer wall of the rotating shaft 13, the dispersion plates 1301 are connected with the rotating shaft 13 in a welding mode, a plurality of circulation holes 1302 are arranged in the dispersion plates 1301, and the circulation holes 1302 are circular through holes;
it should be noted that the dispersion plate 1301 can be driven by the rotating shaft 13 to rotate at a high speed, that is, the N-methylpyrrolidone can be extruded conveniently, so that the N-methylpyrrolidone can be discharged from the area of the molecular sieve membrane sleeve 15 better, the operation effect is improved, and the circulation holes 1302 can facilitate circulation of a part of the N-methylpyrrolidone, so that the dispersion effect is improved;
a control panel 1801 is fixedly arranged on the upper side of the front end of the heat insulation cover 18, the control panel 1801 is connected with the heat insulation cover 18 through bolts, the control panel 1801 is connected with the semiconductor refrigerator 20 through electric signals, a B connecting pipe 1802 is fixedly arranged on the left side inside the heat insulation cover 18, the B connecting pipe 1802 is connected with the heat insulation cover 18 through welding, the B connecting pipe 1802 is respectively connected with a B suction pump 1103 and an I circulation pipe 21 through welding, a liquid discharge pipe 1803 is fixedly arranged on the right side inside the heat insulation cover 18, the liquid discharge pipe 1803 is connected with the heat insulation cover 18 through welding, and the liquid discharge pipe 1803 is connected with the II circulation pipe 22 through welding;
it should be noted that the control panel 1801 can facilitate the control of the semiconductor refrigerator 20 by the staff, which facilitates the adjustment operation, the B connection tube 1802 can butt the B suction pump 1103 and the I circulation tube 21, which facilitates the continuous supply of the N-methylpyrrolidone to the I circulation tube 21, and the liquid discharge tube 1803 is connected to the II circulation tube 22, which facilitates the supply of the purified N-methylpyrrolidone to the subsequent collection device;
the semiconductor refrigerator 20 is characterized in that a plurality of heating ends 2001 are fixedly arranged on the left side of the semiconductor refrigerator 20 from top to bottom in sequence, the heating ends 2001 and the semiconductor refrigerator 20 are integrally formed, the heating ends 2001 are connected with a circulation pipe 21I through bolts, a plurality of heat absorption ends 2002 are fixedly arranged on the right side of the semiconductor refrigerator 20 from top to bottom in sequence, the heat absorption ends 2002 and the semiconductor refrigerator 20 are integrally formed, and the heat absorption ends 2002 and a circulation pipe 22 II are connected through bolts;
it should be noted that the heat-generating end 2001 is located on the left side of the semiconductor cooler 20, the heat-absorbing end 2002 is located on the right side of the semiconductor cooler 20, when the semiconductor cooler 20 is turned on, the heat-generating end 2001 can continuously release heat to heat the area of the circulation tube 21I, and the heat-absorbing end 2002 continuously absorbs heat to cool the area of the circulation tube 22 II, and finally, the N-methylpyrrolidone can be preheated to dry and volatilize water, and the temperature can be rapidly decreased by cooling.
Claims (6)
1. A high-purity N-methyl pyrrolidone purification device with adsorption function is characterized by comprising an I adsorption component, an II adsorption component and a semiconductor component, wherein the I adsorption component comprises an outer cover, an A fixing plate, an A filter element, a B fixing plate, a B filter element, a C fixing plate and a C filter element, the II adsorption component comprises a tank body, a motor, a rotating shaft, a side cover, a molecular sieve membrane sleeve, a supporting net and active carbon, the semiconductor component comprises a heat insulation cover, a partition plate, a semiconductor refrigerator, an I circulating pipe and an II circulating pipe, the II adsorption component is fixedly arranged on the right side of the I adsorption component, the semiconductor component is fixedly arranged on the right side of the II adsorption component, the A fixing plate is fixedly arranged on the left side of the top of the outer cover, the A filter element is fixedly arranged at the bottom of the A fixing plate, the A filter element is vertically and the outer cover in sliding connection, the B fixing plate is fixedly arranged at the middle end of the top of the outer cover, the B filter core is fixedly arranged at the bottom of the B fixed plate, the B filter core is vertically and slidably connected with the outer cover, the C fixed plate is fixedly arranged at the right side of the top of the outer cover, the C filter core is fixedly arranged at the bottom of the C fixed plate, the C filter core is vertically and slidably connected with the outer cover, the motor is fixedly arranged at the top of the tank body, the rotating shaft is fixedly arranged at the bottom of the motor, the rotating shaft is rotatably connected with the tank body, the side cover is fixedly arranged at the upper end inside the tank body, the molecular sieve membrane sleeve is fixedly arranged around the inside of the side cover, the supporting net is fixedly arranged at the lower end inside the tank body, the activated carbon is arranged at the top of the supporting net, the partition plate is fixedly arranged at the middle end inside the heat insulation cover, the semiconductor refrigerator is fixedly arranged inside the partition plate, the I circulation pipe is fixedly arranged at the left side inside the heat insulation cover, the II circulation pipe is fixedly arranged at the right side inside the heat insulation cover, the filter core A be the metal and keep off the net filter core, the B filter core be the magnetic adsorption filter core, the C filter core be the active carbon filter core.
2. The apparatus for purifying N-methylpyrrolidone with adsorption function according to claim 1, wherein a suction pump A is further fixedly arranged on the left side of the outer cover, a liquid inlet pipe is further fixedly arranged on the left side of the suction pump A, and a connecting pipe A is further fixedly arranged on the right side of the outer cover.
3. The apparatus for purifying N-methylpyrrolidone with adsorption function according to claim 2, wherein the front and rear ends of the bottom of the tank body are further provided with a support base, the upper end of the left side of the tank body is further provided with an adjusting valve, the adjusting valve is connected with the connecting pipe A by welding, and the bottom of the tank body is further provided with a suction pump B.
4. The purification apparatus of N-methylpyrrolidone with adsorption function according to claim 1, wherein a plurality of dispersion plates are fixedly arranged around the outer wall of the rotating shaft, and a plurality of flow holes are arranged in the dispersion plates.
5. The apparatus for purifying N-methylpyrrolidone with adsorption function according to claim 3, wherein a control panel is further fixedly arranged on the upper side of the front end of the heat insulating cover, the control panel is electrically connected with the semiconductor refrigerator, a B connecting pipe is further fixedly arranged on the left side inside the heat insulating cover, the B connecting pipe is respectively connected with the B suction pump and the I circulation pipe in a welding manner, a liquid discharge pipe is further fixedly arranged on the right side inside the heat insulating cover, and the liquid discharge pipe is connected with the II circulation pipe in a welding manner.
6. The apparatus according to claim 5, wherein a plurality of heat-generating ends are further fixed on the left side of the semiconductor refrigerator from top to bottom, the heat-generating ends are connected with the I flow tube by bolts, a plurality of heat-absorbing ends are further fixed on the right side of the semiconductor refrigerator from top to bottom, and the heat-absorbing ends are connected with the II flow tube by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965339.0A CN112094216B (en) | 2020-09-15 | 2020-09-15 | High-purity N-methyl pyrrolidone purification device with adsorption function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965339.0A CN112094216B (en) | 2020-09-15 | 2020-09-15 | High-purity N-methyl pyrrolidone purification device with adsorption function |
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| CN112094216A CN112094216A (en) | 2020-12-18 |
| CN112094216B true CN112094216B (en) | 2022-07-05 |
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| CN101696182A (en) * | 2009-09-10 | 2010-04-21 | 北京益利精细化学品有限公司 | Purifying method of N-methylpyrrolidone |
| CN204689921U (en) * | 2015-04-29 | 2015-10-07 | 东莞市致格电池科技有限公司 | A kind of N-Methyl pyrrolidone purification devices |
| CN208907093U (en) * | 2018-09-19 | 2019-05-28 | 赣州中能实业有限公司 | A kind of purifying plant of N-Methyl pyrrolidone |
| CN113354568A (en) * | 2021-06-28 | 2021-09-07 | 合肥中聚合臣电子材料有限公司 | Method for ultimate water removal of electronic-grade N-methyl pyrrolidone |
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| CN102399179B (en) * | 2010-09-17 | 2014-06-18 | 上海化学试剂研究所 | Production process for ultra-pure N-methylpyrrolidone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101696182A (en) * | 2009-09-10 | 2010-04-21 | 北京益利精细化学品有限公司 | Purifying method of N-methylpyrrolidone |
| CN204689921U (en) * | 2015-04-29 | 2015-10-07 | 东莞市致格电池科技有限公司 | A kind of N-Methyl pyrrolidone purification devices |
| CN208907093U (en) * | 2018-09-19 | 2019-05-28 | 赣州中能实业有限公司 | A kind of purifying plant of N-Methyl pyrrolidone |
| CN113354568A (en) * | 2021-06-28 | 2021-09-07 | 合肥中聚合臣电子材料有限公司 | Method for ultimate water removal of electronic-grade N-methyl pyrrolidone |
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