CN114832530B - DMAC multistage spraying recycling system and method - Google Patents
DMAC multistage spraying recycling system and method Download PDFInfo
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- CN114832530B CN114832530B CN202210522995.2A CN202210522995A CN114832530B CN 114832530 B CN114832530 B CN 114832530B CN 202210522995 A CN202210522995 A CN 202210522995A CN 114832530 B CN114832530 B CN 114832530B
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- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000004064 recycling Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005507 spraying Methods 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims description 42
- 238000007906 compression Methods 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 1
- AUGKLUNRHYPDAM-UHFFFAOYSA-N 3-methylbut-2-enenitrile Chemical compound CC(C)=CC#N AUGKLUNRHYPDAM-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 239000012346 acetyl chloride Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000895 extractive distillation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
-
- 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
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a DMAC multistage spraying recycling system and method, wherein a recycling mechanism comprises a connecting pipe and a fixed seat, the interior of the connecting pipe is communicated with the interior of a recycling box in a penetrating way, the fixed seat is arranged in the recycling box, a filtering component and an exhaust component are arranged outside the fixed seat, a transverse bar is fixedly connected to the top of the fixed seat, and the outer surface of the transverse bar is fixedly connected with the inner wall of the recycling box. This DMAC multistage sprays recycling system and method, through setting up recovery mechanism, driving motor drives the pivot at first and rotates for the impeller follows and rotates, thereby absorb DMAC liquid and spraying after spraying through the effect of suction and connecting pipe, make it get into the recovery incasement portion, thereby make DMAC can be fully retrieved to the recovery incasement portion, avoid leaking the polluted environment, the combination through above-mentioned structure has solved current recovery unit and has sprayed incomplete problem that leads to DMAC to retrieve because of spraying the system.
Description
Technical Field
The invention relates to the technical field of DMAC (dimethyl Acrylonitrile) recovery, in particular to a DMAC multistage spraying recovery and recycling system and method.
Background
Dimethylacetamide, known as N, N-dimethylacetamide, abbreviated as DMAC or DMA; one commonly used aprotic polar solvent; colorless transparent liquid, flammable. Can be mixed with water, alcohol, ether, ester, benzene, chloroform, aromatic compound and other organic solvents at will; used for preparing medicines and synthetic resins, and also used as solvents for polyacrylonitrile spinning, extractive distillation solvents for separating styrene from carbon eight fractions, and the like; is prepared by the action of dimethylamine and acetyl chloride.
In the conventional DMAC recycling spray device, the DMAC is generally recycled by utilizing the characteristic that the DMAC is dissolved in water, however, more impurities are often mixed in the air containing the DMAC in the recycling process, and the recycling of the DMAC is not thorough due to incomplete spraying of a spray system, so that the problem needs to be solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a DMAC multi-stage spraying recycling system and method, which solve the problem that the existing recycling device cannot fully recycle DMAC due to incomplete spraying of a spraying system.
In order to achieve the above purpose, the invention is realized by the following technical scheme: DMAC multistage spraying recycling system, including the collection box, the bottom of collection box is provided with the landing leg, the side of collection box is provided with the chamber door, the bottom of collection box runs through the intercommunication and has the discharging pipe, the inside of collection box is provided with recovery mechanism.
The recovery mechanism comprises a connecting pipe and a fixed seat, wherein the inside of the connecting pipe is communicated with the inside of the recovery box in a penetrating manner, the fixed seat is arranged in the recovery box, a filtering component and an exhaust component are arranged outside the fixed seat, a cross bar is fixedly connected to the top of the fixed seat, the outer surface of the cross bar is fixedly connected with the inner wall of the recovery box, a caulking groove is formed in the inside of the fixed seat, a driving motor is fixedly connected to the inner surface of the caulking groove, the output end of the driving motor is connected with the inside of the fixed seat in a penetrating manner in a rotating manner, the output end of the driving motor is fixedly connected with a rotating shaft through a coupling, an impeller is fixedly connected to the outer surface of the rotating shaft in a penetrating manner, and a rotating rod is fixedly connected to the outer surface of the rotating shaft;
the exhaust assembly comprises an exhaust pipe, the inside of the exhaust pipe is communicated with the inside of the recovery box in a penetrating mode, an air pressure valve is arranged outside the exhaust pipe, a filtering column is arranged on the inner wall of the exhaust pipe, rotating strips are connected to the left side and the right side of one end of the exhaust pipe in a rotating mode, the two rotating strips are connected through a hook spring, and the outer surfaces of the rotating strips and the hook spring are movably connected with the outer surface of the filtering column.
Preferably, the filter assembly comprises a filter plate and symmetrically arranged slide rails, wherein the filter plate is connected with the recovery box through a sliding unit, and the outer surfaces of the two slide rails are fixedly connected with the inner wall of the recovery box.
Preferably, the top swing joint of filter has the cotton board, limit groove has all been seted up to the left and right sides at filter top, the internal surface swing joint in limit groove has the even strip.
Preferably, the outer surface of the connecting strip is fixedly connected with the outer surface of the cotton plate, the inner penetrating threads of the connecting strip are connected with bolts, and the outer surface of each bolt is movably connected with the inner penetrating of the filter plate.
Preferably, the inner wall sliding connection of slide rail has linear electric motor, linear electric motor's bottom fixedly connected with clamp splice, be provided with the compression roller between the clamp splice.
Preferably, the outer surface of the compression roller is movably connected with the outer surface of the cotton plate, a connecting rod is fixedly connected in the compression roller in a penetrating mode, and the outer surface of the connecting rod is rotatably connected with the inner part of the clamping block in a penetrating mode.
Preferably, the sliding unit comprises sliding frames which are symmetrically arranged, the outer surfaces of the two sliding frames are fixedly connected with the inner wall of the recovery box, sliding strips are slidably connected with the inner wall of the sliding frames, and the outer surfaces of the sliding strips are fixedly connected with the outer surfaces of the filter plates.
Preferably, a through connecting groove is formed in the sliding strip, a servo motor is movably connected to the inner surface of the connecting groove, the outer surface of the servo motor is fixedly connected with the inner wall of the sliding frame, the output end of the servo motor is fixedly connected with a screw rod through a coupler, and the outer surface of the screw rod is in threaded connection with the inner surface of the connecting groove.
The invention also discloses a DMAC multistage spray recycling method, which specifically comprises the following steps:
s1: the negative pressure recovery, at first, the driving motor drives the rotating shaft to rotate, so that the impeller rotates along with the rotating shaft, the sprayed DMAC liquid and spray are absorbed through the suction force and the action of the connecting pipe, the DMAC liquid and the spray enter the recovery box, meanwhile, when the air pressure in the recovery box reaches a certain value, the air pressure valve on the exhaust pipe is opened, air is discharged to the outside through the exhaust pipe, and the DMAC liquid in the air is adsorbed and filtered by the filtering column;
s2: after rolling and filtering, DMAC liquid enters the recycling bin through suction force, the DMAC liquid is contacted with a cotton plate, the cotton plate adsorbs the DMAC liquid and dust mixed in the DMAC liquid, a linear motor reciprocates in a sliding rail, a pressing roller is driven to rotate through a clamping block and a connecting rod, the pressing roller rolls on the cotton plate to roll the cotton plate, the DMAC liquid adsorbed by the cotton plate is separated, falls into the bottom of the recycling bin through a filter plate, meanwhile, the DMAC liquid is heated through a rotating shaft, and the DMAC liquid is uniformly heated through stirring by a rotating rod, so that crystallization in the recycling bin is avoided, and the filtered DMAC liquid can be discharged through a discharging pipe for recycling;
s3: after the filter piece is cleaned and the recovery filtration is completed, the box door at the side edge of the recovery box is opened, and then the servo motor drives the screw rod, so that the slide bar slides in the sliding frame and drives the filter plate to move, the filter plate drives the cotton plate to move to the outside of the recovery box through the box door, and accordingly the cotton plate is detached and replaced, and the filter plate is cleaned.
Preferably, the driving motor, the linear motor, the rotating shaft and the servo motor mentioned in the S1-S3 are all electrically connected with an external control circuit.
Advantageous effects
The invention provides a DMAC multi-stage spray recycling system and a DMAC multi-stage spray recycling method. Compared with the prior art, the method has the following beneficial effects:
(1) The DMAC multistage spraying recycling system and method comprise a connecting pipe and a fixed seat, wherein the inside of the connecting pipe is communicated with the inside of a recycling box in a penetrating way, the fixed seat is arranged in the recycling box, a filtering component and an exhaust component are arranged outside the fixed seat, the top of the fixed seat is fixedly connected with a transverse bar, the outer surface of the transverse bar is fixedly connected with the inner wall of the recycling box, a caulking groove is formed in the inside of the fixed seat, the inner surface of the caulking groove is fixedly connected with a driving motor, the output end of the driving motor is connected with the inside of the fixed seat in a penetrating and rotating way, the output end of the driving motor is fixedly connected with a rotating shaft through a coupling, the outer surface of the rotating shaft is fixedly connected with an impeller in a penetrating way, and the outer surface of the rotating shaft is fixedly connected with a rotating rod; the exhaust assembly comprises an exhaust pipe, the inside of the exhaust pipe is communicated with the inside of the recovery tank in a penetrating manner, an air pressure valve is arranged on the outside of the exhaust pipe, a filtering column is arranged on the inner wall of the exhaust pipe, rotating bars are connected to the left side and the right side of one end of the exhaust pipe in a rotating manner, the two rotating bars are connected with the outer surface of the filtering column in a movable manner, a recovery mechanism is arranged, a driving motor drives a rotating shaft to rotate at first, an impeller rotates in a following manner, so that the sprayed DMAC liquid and spray are absorbed through the suction force and the effect of a connecting pipe, the DMAC liquid enters the inside of the recovery tank, meanwhile, the air pressure valve on the exhaust pipe is opened after the air pressure inside the recovery tank reaches a certain value, air is discharged to the outside through the air pressure valve, and the filtering column adsorbs and filters DMAC liquid in the air, so that DMAC can be comprehensively recovered to the inside of the recovery tank, the environment is prevented from being leaked outside, the DMAC liquid is heated uniformly through stirring of the DMAC liquid, crystallization inside the recovery tank is avoided, the DMAC liquid can be discharged through the discharging pipe to be recycled, and the DMAC liquid after the filtering can be completely used through the discharging pipe, and the DMAC liquid after the DMAC liquid is completely sprayed by the aid of the combination device.
(2) The DMAC multistage spraying recycling system and the method thereof, the filtering component comprises a filtering plate and symmetrically arranged sliding rails, the filtering plate is connected with the recycling box through sliding units, the outer surfaces of the two sliding rails are fixedly connected with the inner wall of the recycling box, the top of the filtering plate is movably connected with a cotton plate, side grooves are formed in the left side and the right side of the top of the filtering plate, connecting strips are movably connected with the inner surfaces of the side grooves, the outer surfaces of the connecting strips are fixedly connected with the outer surfaces of the cotton plate, bolts are connected with the inner penetrating threads of the connecting strips, the outer surfaces of the bolts are connected with the inner penetrating threads of the filtering plate, the inner wall of the sliding rail is slidably connected with a linear motor, clamping blocks are fixedly connected with the bottom of the linear motor, compression rollers are arranged between the clamping blocks, and the outer surfaces of the compression rollers are movably connected with the outer surfaces of the cotton plate, the inside of compression roller runs through fixedly connected with connecting rod, the surface of connecting rod runs through rotationally with the inside of clamp splice and is connected, through setting up filter unit, DMAC liquid gets into the recovery incasement portion back through the suction, can contact with the cotton board, the cotton board adsorbs DMAC liquid and the dust that is mingled with in it, then linear electric motor is inside reciprocating motion at the slide rail, and drive the compression roller through clamp splice and connecting rod and rotate, the compression roller rolls on the cotton board and rolls the cotton board, make cotton board absorptive DMAC liquid break away from, and fall into the recovery bottom of the case through the filter, thereby can accomplish the thorough recovery of DMAC, the combination through above-mentioned structure has solved current recovery unit and has sprayed incomplete problem that leads to DMAC to retrieve incompletely because of spraying the system sprays
(3) According to the DMAC multistage spraying recycling system and method, the sliding units comprise the sliding frames which are symmetrically arranged, the outer surfaces of the two sliding frames are fixedly connected with the inner wall of the recycling box, the sliding strips are connected with the inner wall of the sliding frames in a sliding mode, the outer surfaces of the sliding strips are fixedly connected with the outer surfaces of the filter plates, through connecting grooves are formed in the sliding strips, the inner surfaces of the connecting grooves are movably connected with the servo motor, the outer surfaces of the servo motor are fixedly connected with the inner walls of the sliding frames, the output ends of the servo motor are fixedly connected with the screw rods through the couplings, the outer surfaces of the screw rods are in threaded connection with the inner surfaces of the connecting grooves, through the sliding units, after recycling is completed, the box doors on the side edges of the recycling box are opened, the servo motor drives the screw rods along with the screw rods, the sliding strips slide in the sliding frames and the filter plates are driven to move, and the filter plates are driven to move to the outer parts of the recycling box through the box doors, so that the cotton plates can be conveniently removed and replaced, and the filter plates are cleaned, and the DMAC recycling is not thoroughly caused when the device is used again.
Drawings
FIG. 1 is a front view of the internal structure of the present invention;
FIG. 2 is a front view showing the internal structure of the holder of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 4 is a front view of the outer structure of the spindle of the present invention;
FIG. 5 is a side view of the internal structure of the slide rail of the present invention;
FIG. 6 is a side view of the outer structure of the filter plate of the present invention;
FIG. 7 is a front view of the external structure of the filter plate of the present invention;
fig. 8 is a front view of the internal structure of the carriage of the present invention;
FIG. 9 is a side elevation view of the internal structure of the exhaust pipe of the present invention;
fig. 10 is a flow chart of the method of the present invention.
In the figure: 1-recovery box, 2-landing leg, 3-box door, 4-discharging pipe, 5-recovery mechanism, 51-connecting pipe, 52-fixed seat, 53-filtering component, 531-filtering plate, 532-sliding rail, 533-sliding unit, 5331-sliding frame, 5332-sliding bar, 5333-connecting groove, 5334-servo motor, 5335-screw rod, 534-cotton plate, 535-side groove, 536-connecting bar, 537-bolt, 538-linear motor, 539-clamping block, 5310-compression roller, 5311-connecting bar, 54-exhausting component, 541-exhausting pipe, 542-air pressure valve, 543-filtering column, 544-rotating bar, 545-hooking spring, 55-transverse bar, 56-caulking groove, 57-driving motor, 58-rotating shaft, 59-impeller, 510-rotating rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Referring to fig. 1-10, the present invention provides the following technical solutions: the DMAC multistage spraying, recycling and reusing system comprises a recycling box 1, wherein the inner structure of the recycling box 1 is provided with corrosion-resistant treatment, the bottom of the recycling box 1 is provided with a supporting leg 2, the side edge of the recycling box 1 is provided with a box door 3, the box door 3 is made of a material with good sealing property and compression resistance, the bottom of the recycling box 1 is communicated with a discharging pipe 4 in a penetrating way, one end of the discharging pipe 4 is communicated with a spraying system through a guide pipe, and a recycling mechanism 5 is arranged in the recycling box 1; the recovery mechanism 5 comprises a connecting pipe 51 and a fixed seat 52, one end of the connecting pipe 51 is communicated with a spraying area of the spraying system, the inside of the connecting pipe 51 is communicated with the inside of the recovery box 1 in a penetrating manner, the fixed seat 52 is arranged in the recovery box 1, a filtering component 53 and an exhaust component 54 are arranged outside the fixed seat 52, a transverse bar 55 is fixedly connected to the top of the fixed seat 52, inclined planes are arranged on the transverse bar 55 and the fixed seat 52 to guide liquid, the outer surface of the transverse bar 55 is fixedly connected with the inner wall of the recovery box 1, a caulking groove 56 is formed in the inside of the fixed seat 52, a driving motor 57 is fixedly connected to the inner surface of the caulking groove 56, the output end of the driving motor 57 is connected with the inside of the fixed seat 52 in a penetrating manner, a rotating shaft 58 is fixedly connected to the output end of the driving motor 57 through a shaft coupling, a constant-temperature heating element is arranged in the rotating shaft 58, the constant-temperature is between 30 ℃ and 40 ℃, DMAC crystallization and evaporation are avoided, the outer surface of the rotating shaft 58 is conveniently recycled, an impeller 59 is fixedly connected to the outer surface of the rotating shaft 58, and a rotating rod 510 is fixedly connected to the outer surface of the rotating shaft 58; the exhaust assembly 54 comprises an exhaust pipe 541, the inside of the exhaust pipe 541 is communicated with the inside of the recovery box 1 in a penetrating way, an air pressure valve 542 is arranged outside the exhaust pipe 541, a filtering column 543 is arranged on the inner wall of the exhaust pipe 541, the filtering column 543 is made of a material with good adsorptivity, rotating strips 544 are connected to the left side and the right side of one end of the exhaust pipe 541 in a rotating way, the two rotating strips 544 are connected through a hook spring 545, the outer surfaces of the rotating strips 544 and the hook spring 545 are movably connected with the outer surfaces of the filtering column 543, the filtering assembly 53 comprises a filtering plate 531 and symmetrically arranged sliding rails 532, the filtering plate 531 is connected with the recovery box 1 through a sliding unit 533, the outer surfaces of the two sliding rails 532 are fixedly connected with the inner wall of the recovery box 1, a cotton plate 534 is movably connected with the top of the filtering plate 531, the cotton plate 534 is made of a material with good adsorptivity, side grooves 535 are formed in the left side and right side surfaces of the top of the filtering plate 531, the inner surfaces of the side grooves 535 are movably connected with connecting strips 536, the surface of link 536 and the surface fixed connection of cotton board 534, the inside run-through threaded connection of link 536 has bolt 537, the surface of bolt 537 and the inside run-through swing joint of filter 531, the inner wall sliding connection of slide rail 532 has linear electric motor 538, the bottom fixedly connected with clamp block 539 of linear electric motor 538, be provided with compression roller 5310 between the clamp block 539, the distance between compression roller 5310 and the filter 531 top is greater than the thickness of cotton board 534, the surface of compression roller 5310 and the surface swing joint of cotton board 534, the inside run-through fixedly connected with connecting rod 5311 of compression roller 5310, the surface of connecting rod 5311 and the inside run-through rotation connection of clamp block 539, sliding unit 533 includes the balladeur train 5331 of symmetry setting, the surface of two balladeur train 5331 all is with the inner wall fixed connection of recovery box 1, the inner wall sliding connection of balladeur train 5332 of balladeur train 5331, balladeur train 5332 adopts the leakproofness good, the resistance to compression and wear-resisting material make, the surface of draw runner 5332 and the surface fixed connection of filter 531, the link slot 5333 that link is seted up to the inside of draw runner 5332, link slot 5333's internal surface swing joint has servo motor 5334, during operation, draw runner 5332 wraps up servo motor 5334 through link slot 5333 one side, servo motor 5334's surface and the inner wall fixed connection of balladeur train 5331 have been avoided, servo motor 5334's surface, servo motor 5334's output passes through shaft coupling fixedly connected with lead screw 5335, the surface of lead screw 5335 and link slot 5333's internal surface threaded connection.
The invention also discloses a DMAC multistage spray recycling method, which specifically comprises the following steps:
s1: the negative pressure recovery, first the driving motor 57 drives the rotating shaft 58 to rotate, so that the impeller 59 rotates along with the rotating shaft, and the sprayed DMAC liquid and spray are absorbed by the suction force and the action of the connecting pipe 51, so that the DMAC liquid and the spray enter the recovery box 1, meanwhile, when the air pressure in the recovery box 1 reaches a certain value, the air pressure valve 542 on the air exhaust pipe 541 is opened, air is discharged to the outside through the air exhaust pipe 541, and the DMAC liquid in the air is adsorbed and filtered by the filtering column 543;
s2: after rolling and filtering, DMAC liquid enters the recycling bin 1 through suction force, the DMAC liquid is contacted with the cotton plate 534, the cotton plate 534 adsorbs the DMAC liquid and dust mixed in the DMAC liquid, a linear motor 538 reciprocates in a sliding rail 532, a compression roller 5310 is driven to rotate through a clamping block 539 and a connecting rod 5311, the compression roller 5310 rolls on the cotton plate 534 to roll the cotton plate 534, the DMAC liquid adsorbed by the cotton plate 534 is separated and falls into the bottom of the recycling bin 1 through a filter plate 531, meanwhile, the rotating shaft 58 heats the DMAC liquid, a rotating rod 510 stirs the DMAC liquid uniformly, crystallization in the recycling bin 1 is avoided, and the filtered DMAC liquid can be discharged through a discharge pipe 4 for recycling;
s3: after the filter piece is cleaned and the recovery filtration is completed, the box door 3 at the side edge of the recovery box 1 is opened, and then the servo motor 5334 drives the screw rod 5335, so that the slide bar 5332 slides in the sliding frame 5331 and drives the filter plate 531 to move, the filter plate 531 drives the cotton plate 534 to move to the outside of the recovery box 1 through the box door 3, and accordingly the cotton plate 534 is detached and replaced, and the filter plate 531 is cleaned.
In the present invention, the driving motor 57, the linear motor 538, the rotating shaft 58 and the servo motor 5334 mentioned in S1 to S3 are electrically connected to an external control circuit.
And all that is not described in detail in this specification is well known to those skilled in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
- DMAC multistage spraying recycling system, including collection box (1), the bottom of collection box (1) is provided with landing leg (2), the side of collection box (1) is provided with chamber door (3), the bottom of collection box (1) runs through the intercommunication and has discharging pipe (4), its characterized in that: a recovery mechanism (5) is arranged in the recovery box (1);the recovery mechanism (5) comprises a connecting pipe (51) and a fixed seat (52), wherein the inside of the connecting pipe (51) is communicated with the inside of the recovery box (1) in a penetrating mode, the fixed seat (52) is arranged inside the recovery box (1), a filtering component (53) and an exhaust component (54) are arranged outside the fixed seat (52), a transverse bar (55) is fixedly connected to the top of the fixed seat (52), an embedded groove (56) is formed in the inside of the fixed seat (52), a driving motor (57) is fixedly connected to the inner surface of the embedded groove (56), the output end of the driving motor (57) is connected with the inside of the fixed seat (52) in a penetrating and rotating mode, a rotating shaft (58) is fixedly connected to the output end of the driving motor (57) through a coupling, an impeller (59) is fixedly connected to the outer surface of the rotating shaft (58), and a rotating rod (510) is fixedly connected to the outer surface of the rotating shaft (58);the exhaust assembly (54) comprises an exhaust pipe (541), the inside of the exhaust pipe (541) is communicated with the inside of the recovery box (1) in a penetrating mode, an air pressure valve (542) is arranged outside the exhaust pipe (541), a filtering column (543) is arranged on the inner wall of the exhaust pipe (541), rotating strips (544) are connected to the left side and the right side of one end of the exhaust pipe (541) in a rotating mode, the two rotating strips (544) are connected through hook springs (545), and the outer surfaces of the rotating strips (544) and the hook springs (545) are movably connected with the outer surface of the filtering column (543).
- 2. The DMAC multi-stage spray recycling system according to claim 1, wherein: the filter assembly (53) comprises a filter plate (531) and symmetrically arranged sliding rails (532), the filter plate (531) is connected with the recovery box (1) through a sliding unit (533), and the outer surfaces of the two sliding rails (532) are fixedly connected with the inner wall of the recovery box (1).
- 3. The DMAC multi-stage spray recycling system according to claim 2, wherein: the top swing joint of filter (531) has cotton board (534), limit groove (535) have all been seted up to the left and right sides at filter (531) top, the internal surface swing joint of limit groove (535) has even strip (536).
- 4. A DMAC multi-stage spray recycling system according to claim 3, characterized in that: the surface of even strip (536) is connected with the surface fixed of cotton board (534), the inside of even strip (536) runs through threaded connection and has bolt (537), the surface of bolt (537) runs through swing joint with the inside of filter (531).
- 5. The DMAC multi-stage spray recycling system of claim 4, wherein: the inner wall sliding connection of slide rail (532) has linear electric motor (538), the bottom fixedly connected with clamp splice (539) of linear electric motor (538), be provided with compression roller (5310) between clamp splice (539).
- 6. The DMAC multi-stage spray recycling system of claim 5, wherein: the outer surface of compression roller (5310) and the surface swing joint of cotton board (534), the inside of compression roller (5310) runs through fixedly connected with connecting rod (5311), the surface of connecting rod (5311) runs through rotation with the inside of clamp splice (539) and is connected.
- 7. The DMAC multi-stage spray recycling system of claim 6, wherein: the sliding units (533) comprise symmetrically arranged sliding frames (5331), the outer surfaces of the two sliding frames (5331) are fixedly connected with the inner wall of the recovery box (1), sliding strips (5332) are connected to the inner wall of the sliding frames (5331) in a sliding mode, and the outer surfaces of the sliding strips (5332) are fixedly connected with the outer surfaces of the filter plates (531).
- 8. The DMAC multi-stage spray recycling system of claim 7, wherein: the inside of draw runner (5332) has seted up link groove (5333) that link, the internal surface swing joint of link groove (5333) has servo motor (5334), the surface of servo motor (5334) and the inner wall fixed connection of balladeur train (5331), the output of servo motor (5334) is through shaft coupling fixedly connected with lead screw (5335), the surface of lead screw (5335) and the internal surface threaded connection of link groove (5333).
- 9. The DMAC multi-stage spray recycling method using the DMAC multi-stage spray recycling system according to claim 8, characterized in that: the method specifically comprises the following steps:s1: negative pressure recovery: firstly, a motor (57) is driven to drive a rotating shaft (58) to rotate, so that an impeller (59) rotates along with the rotating shaft, the sprayed DMAC liquid and spray are absorbed through the action of suction force and a connecting pipe (51), the DMAC liquid and the spray enter the recovery box (1), meanwhile, when the internal air pressure of the recovery box (1) reaches a certain value, an air pressure valve (542) on an exhaust pipe (541) is opened, air is discharged to the outside through the exhaust pipe (541), and a filtering column (543) adsorbs and filters the DMAC liquid in the air;s2: rolling and filtering: DMAC liquid enters the recycling bin (1) through suction and then contacts with a cotton plate (534), the cotton plate (534) adsorbs the DMAC liquid and dust mixed in the DMAC liquid, a linear motor (538) reciprocates in a sliding rail (532) along with the DMAC liquid, a pressing roller (5310) is driven to rotate through a clamping block (539) and a connecting rod (5311), the pressing roller (5310) rolls on the cotton plate (534) to roll the cotton plate (534), the DMAC liquid adsorbed by the cotton plate (534) is separated and falls into the bottom of the recycling bin (1) through a filter plate (531), meanwhile, a rotating shaft (58) heats the DMAC liquid, a rotating rod (510) stirs the DMAC liquid to enable the DMAC liquid to be heated uniformly, crystallization in the recycling bin (1) is avoided, and the filtered DMAC liquid can be discharged through a discharging pipe (4) for recycling;s3: cleaning a filter: after recovery filtration is completed, the box door (3) at the side edge of the recovery box (1) is opened, and then the servo motor (5334) drives the screw rod (5335) to enable the sliding strip (5332) to slide in the sliding frame (5331) and drive the filter plate (531) to move, so that the filter plate (531) drives the cotton plate (534) to move to the outside of the recovery box (1) through the box door (3), and accordingly the cotton plate (534) is detached and replaced, and the filter plate (531) is cleaned.
- 10. The DMAC multi-stage spray recycling method according to claim 9, wherein: the driving motor (57), the linear motor (538), the rotating shaft (58) and the servo motor (5334) mentioned in S1-S3 are electrically connected with an external control circuit.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20160068351A (en) * | 2014-12-05 | 2016-06-15 | 주식회사 엘지화학 | Method for producing conjugated diene |
| JP6965479B1 (en) * | 2021-03-12 | 2021-11-10 | 生態環境部南京環境科学研究所 | Integrated equipment for repairing soil contaminated with organochlorine pesticides and treating exhaust gas |
| CN113856418A (en) * | 2021-11-05 | 2021-12-31 | 杭州青云新材料股份有限公司 | DMAC (dimethylacetamide) multistage spraying recycling system and method |
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- 2022-05-13 CN CN202210522995.2A patent/CN114832530B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160068351A (en) * | 2014-12-05 | 2016-06-15 | 주식회사 엘지화학 | Method for producing conjugated diene |
| JP6965479B1 (en) * | 2021-03-12 | 2021-11-10 | 生態環境部南京環境科学研究所 | Integrated equipment for repairing soil contaminated with organochlorine pesticides and treating exhaust gas |
| CN113856418A (en) * | 2021-11-05 | 2021-12-31 | 杭州青云新材料股份有限公司 | DMAC (dimethylacetamide) multistage spraying recycling system and method |
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