CN113856418A - DMAC (dimethylacetamide) multistage spraying recycling system and method - Google Patents
DMAC (dimethylacetamide) multistage spraying recycling system and method Download PDFInfo
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- CN113856418A CN113856418A CN202111305242.8A CN202111305242A CN113856418A CN 113856418 A CN113856418 A CN 113856418A CN 202111305242 A CN202111305242 A CN 202111305242A CN 113856418 A CN113856418 A CN 113856418A
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- dmac
- fixedly connected
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- recovery
- cleaning
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- 238000005507 spraying Methods 0.000 title claims abstract description 55
- 238000004064 recycling Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 26
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 title description 63
- 238000011084 recovery Methods 0.000 claims abstract description 47
- 238000004140 cleaning Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007921 spray Substances 0.000 claims abstract description 23
- 239000003595 mist Substances 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 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 claims abstract 26
- 239000000463 material Substances 0.000 claims description 51
- 239000010410 layer Substances 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 14
- 229920000297 Rayon Polymers 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000007514 turning Methods 0.000 claims description 2
- 210000004209 hair Anatomy 0.000 abstract description 9
- 239000002904 solvent Substances 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 150000001350 alkyl halides Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- MZHJJOMWLPIVFA-UHFFFAOYSA-N [Na].C#C Chemical group [Na].C#C MZHJJOMWLPIVFA-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- -1 alkyl alkyne Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- GFJVXXWOPWLRNU-UHFFFAOYSA-N ethenyl formate Chemical compound C=COC=O GFJVXXWOPWLRNU-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/22—Separation; Purification; Stabilisation; Use of additives
- C07C231/24—Separation; Purification
-
- 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)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a DMAC multi-stage spraying recycling system and a method, which relate to the technical field of DMAC recycling, and comprise a supporting seat, a recycling box, a cover plate and supporting legs, wherein a cleaning head component is driven to do circular motion along the outer wall of a spray head when a second driving fan rotates, so that the cleaning effect on impurities in a discharge hole is achieved, the flowing direction of air flow is disturbed in the rotating process of the second driving fan, so that the air flow is uniformly dispersed, the second driving fan can realize the rotation of the second driving fan without external power, and the mounting seat is in sliding connection with a sliding block, so that the sliding block can be detached and replaced again when cleaning hairs on the sliding block are worn, water flow pushes the first driving fan to rotate rapidly, the first cleaning component can clean the inner wall of the spray head, the spray head is in a conical design, the conical shape can enable the spraying surface of the spray head to be larger, and further increase the contact area between sprayed water mist and the DMAC, the recovery rate of DMAC is higher.
Description
Technical Field
The invention relates to the technical field of DMAC (dimethylacetamide) recovery, in particular to a DMAC multi-stage spraying, recovering and recycling system and method.
Background
N, N-dimethylacetamide is also called acetyl dimethylamine and acetyl dimethylamine, DMAC for short, is an aprotic high-polarity solvent, has a slight ammonia odor, strong dissolving power and wide range of soluble substances, can be freely mixed and dissolved with water, aromatic compounds, esters, ketones, alcohols, ethers, benzene, chloroform and the like, and can activate compound molecules, so that the N, N-dimethylacetamide can be widely used as a solvent and a catalyst. The solvent is used as a solvent with high boiling point, high flash point, high thermal stability and stable chemical property, and can be used for spinning solvents of polyacrylonitrile, synthetic resins and natural resins, copolymers such as vinyl formate and vinylpyridine and solvents of aromatic carboxylic acid; the catalyst can be used for the processes of preparing cyanuric acid by heating urea, preparing nitrile by reacting alkyl halide with metal cyanide, preparing alkyl alkyne by reacting sodium acetylene with alkyl halide, preparing isocyanate by reacting organic halide with cyanate and the like.
However, in the traditional DMAC recovery spraying device, the DMAC is generally recovered by utilizing the characteristic that DMAC is soluble in water, however, in the recovery process, more impurities are often mixed in the air containing DMAC, when the spraying system works, the impurity particles in the air can be adsorbed on the surface of the spraying head, long-time accumulation can cause the blockage of the inner pores of the spraying head, so that the spraying system cannot normally work, and further the incomplete DMAC recovery is caused, in addition, the spraying process can cause the water yield of the spraying head to be incapable of fully contacting with the DMAC due to the instability of the water flow velocity, and further the DMAC is not recovered sufficiently.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a DMAC (dimethylacetamide) multistage spraying, recycling and reusing system and a DMAC multistage spraying and recycling method, which solve the problems that when a DMAC spraying and recycling device works, air containing DMAC is mixed with more impurities, so that a spray head is easily blocked, the spray head cannot work normally, the water yield of the spray head is difficult to control, and the DMAC cannot be fully absorbed.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a DMAC multilevel spray retrieves system of recycling, includes supporting seat, collection box, apron and supporting legs, the top fixedly connected with collection box of supporting seat, bolt fixedly connected with apron is passed through at the top of collection box, the equal fixedly connected with supporting legs in four turnings of the bottom of supporting seat, the mounting groove has been seted up to the bottom of supporting seat, bolt fixedly connected with mounting panel is passed through to the inside of mounting groove, the top fixedly connected with of mounting panel spouts material mechanism, the top of spouting material mechanism is rotated and is connected with the clean subassembly of second, the even flitch of the common fixedly connected with of cavity inner wall of supporting seat.
Spout the material mechanism and include the stub bar, the bottom of stub bar passes through bolt fixedly connected with access cover, and the outer wall of stub bar has seted up a plurality of discharge openings, the inside of stub bar is provided with the mount, the mount forms fixed connection structure through overhauing the bolt with the stub bar, the inside rotation of stub bar is connected with accuse volume subassembly.
The volume control assembly comprises a first transmission shaft, an installing head is fixedly connected to the top end of the first transmission shaft, a first driving fan is fixedly connected to the bottom end of the first transmission shaft, a plurality of threaded holes are formed in the outer wall of the installing head, two threaded holes are formed in the inner portion of the threaded holes, a material baffle is connected to the inner portion of the threaded holes, and the remaining threaded holes are connected to first cleaning assemblies.
First clean subassembly is including carrying the thing board, the fixed viscose layer that is provided with in top of carrying the thing board, the fixed hydrophilic layer that is provided with in top of viscose layer, the fixed brush hair layer that is provided with in top of hydrophilic layer.
The clean subassembly of second includes the second transmission shaft, the top fixedly connected with second drive fan of second transmission shaft, and the bottom fixedly connected with mounting panel of second transmission shaft, the fixed welding in bottom of mounting panel has clean first subassembly, clean first subassembly includes the mount pad again, the mounting groove has been seted up to the bottom of mount pad, the inside sliding connection of mounting groove has the slider, pass through bolted connection between slider and the mount pad.
Further, the second cleaning assembly penetrates through the material homogenizing plate in the vertical direction, and the contact part of the second cleaning assembly and the material homogenizing plate is connected through a bearing.
Further, the bottom fixedly connected with inlet pipe and the recovery tube of mounting panel, the inlet pipe is located mounting panel bottom intermediate position, the recovery tube is located one side of inlet pipe, the top of inlet pipe run through the mounting panel and be linked together with the inside of spouting the material mechanism, the top of recovery tube runs through the mounting panel and is linked together with the inside of collection box.
Furthermore, the equal fixedly connected with blast pipe of collection box both sides wall, the intermediate position of blast pipe all fixedly is provided with the check valve, and the one end of blast pipe is linked together with the inside of collection box.
Further, the top fixedly connected with intake pipe of apron, the bottom of intake pipe is linked together with the inside of collection box.
Further, the thread of the outer wall of the thread head is matched with the thread of the thread hole, and the outline shape formed by the material baffle plate and the thread hole when the material baffle plate and the thread hole rotate is matched with the internal structure of the material spraying head.
Furthermore, the threaded holes are distributed in an annular array, and the number of the threaded holes is a plurality.
Further, the mounting seat is fixedly connected with the mounting plate in a welding mode, and the mounting seat is distributed in an annular array mode.
A usage method of a DMAC multi-stage spraying recycling system comprises the following steps:
step one, preparation work: before the DMAC is recovered, the air inlet pipe is connected with an external waste gas source containing the DMAC, then the inlet pipe is connected with a clean water source, and the recovery pipe is connected with the recovery liquid treatment equipment.
Step two, introducing DMAC mixed gas: the air supply that contains DMAC waste gas passes through the inside that the intake pipe enters into the collection box, the air supply can drive the rotation of second drive fan owing to its self wind-force effect when blowing in, drive cleaning head subassembly is circular motion along spouting stub bar outer wall when second drive fan rotates, because the outer wall of spouting stub bar is hugged closely to the cleaning hair, consequently, play and clean the effect to the inside impurity of discharge opening, and second drive fan rotates the in-process disturbance air current flow direction, make the air current homodisperse, and further make gaseous further homodisperse through the material homogenizing plate.
Step three, introducing absorption liquid: when letting in DMAC mist, let in the clear water through the inlet pipe, the rivers that flow fast promote first drive fan and rotate fast, thereby first transmission shaft drive striker plate is circular motion along spouting stub bar inner wall with first clean subassembly, first clean subassembly can clean the inner wall of spouting the stub bar, first drive fan obtains the energy difference according to the velocity of flow difference of rivers, thereby form different rotational speeds, during the high rotational speed of first drive fan, the striker plate shelters from the frequency increase of discharge opening, the clear water flows through the volume reduction of discharge opening, during the low rotational speed of first drive fan, the striker plate shelters from the frequency reduction of discharge opening, the volume that the discharge opening was flowed through to the clear water increases, thereby discharge opening spun rivers are in stable state.
Step four, DMAC recovery processing: according to the second step and the third step, the DMAC mixed gas and the water mist sprayed by the spray head are fully mixed in the recovery box, according to the characteristic that DMAC is easily soluble in water, DMAC and water mist are fully fused and fall to the bottom of the recovery box under the action of gravity, the DMAC mixed gas enters the recovery liquid treatment equipment through the recovery pipe to be subjected to next recovery treatment, and other water-insoluble gases in the DMAC mixed gas are discharged through the exhaust pipe.
Furthermore, the hydrophilic adhesive layer, the viscose layer and the DMAC do not have any chemical reaction.
Advantageous effects
The invention provides a DMAC (dimethylacetamide) multistage spraying recycling system and method. Compared with the prior art, the method has the following beneficial effects:
1. a DMAC multi-stage spraying recycling system and method, the air supply containing DMAC waste gas enters the interior of the recycling box through the air inlet pipe, the second driving fan is driven to rotate under the action of the wind force of the air supply when the air supply is blown in, the cleaning head component is driven to do circular motion along the outer wall of the material spraying head when the second driving fan rotates, the cleaning bristles are tightly attached to the outer wall of the material spraying head, so that the cleaning effect on impurities in the discharge hole is achieved, the flowing direction of air flow is disturbed during the rotation process of the second driving fan, the air flow is uniformly dispersed, the air is further uniformly dispersed through the material homogenizing plate, the second driving fan can realize the rotation of the second driving fan without external power, the expenditure on-off cost of energy is saved, the mounting seat is in sliding connection with the sliding block and is fixed through bolts, so that the sliding block can be detached and replaced again when the cleaning bristles on the sliding block are worn, the entire cleaning head assembly need not be replaced.
2. The utility model provides a DMAC multistage spray recovery system and method of recycling, when letting in the DMAC mist, let in the clear water through the inlet pipe, the rivers that flow fast promote first drive fan and rotate fast, thereby first transmission shaft drive striker plate is circular motion along spouting stub bar inner wall with first clean subassembly, first clean subassembly can clean the inner wall of spouting the stub bar, first drive fan obtains the energy difference according to the velocity of flow difference of rivers, thereby form different rotational speeds, when first drive fan high rotational speed, the striker plate shelters from the frequency increase of discharge opening, the clear water flows through the volume reduction of discharge opening, when first drive fan low rotational speed, the striker plate shelters from the frequency reduction of discharge opening, the clear water flows through the volume increase of discharge opening, thereby discharge opening spun rivers are in steady state.
3. The utility model provides a DMAC multilevel spray recycling system and method, first clean subassembly is including carrying the thing board, carries the fixed viscose layer that is provided with in top of thing board, and the fixed hydrophilic layer that is provided with in top of viscose layer, and the fixed brush hair layer that is provided with in top of hydrophilic layer carries the thing board and passes through the viscose layer and be connected with the brush hair layer, when the brush hair layer needs to be changed after using for a long time, can take off the brush hair layer from the viscose layer, paste new brush hair layer again can.
4. The utility model provides a DMAC multistage spray recovery system and method of recycling, it includes the nozzle stub bar to spout the material mechanism, the bottom of nozzle stub bar passes through bolt fixedly connected with access cover, and the outer wall of nozzle stub bar has seted up a plurality of discharge openings, the inside of nozzle stub bar is provided with the mount, the mount forms fixed connection structure through the access bolt with the nozzle stub bar, the inside rotation of nozzle stub bar is connected with accuse volume subassembly, first drive fan need not external power supply and can control the water yield of nozzle stub bar, in addition, the nozzle stub bar is "tapered design", the tapered shape can make the face of spraying of nozzle stub bar bigger, thereby increased the area of contact of blowout water smoke with the DMAC, make the rate of recovery of DMAC higher.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a bottom perspective view of the assembled state of the present invention;
FIG. 3 is a schematic view of the internal perspective structure of the present invention;
FIG. 4 is a schematic exploded perspective view of the present invention;
FIG. 5 is a schematic view of an exploded perspective structure of the material spraying mechanism of the present invention;
FIG. 6 is a schematic perspective view of a material spraying head according to the present invention;
FIG. 7 is a schematic exploded perspective view of a quantity control assembly according to the present invention;
FIG. 8 is a perspective view of a first cleaning assembly of the present invention;
FIG. 9 is a perspective view of a second cleaning assembly of the present invention;
figure 10 is an exploded perspective view of the cleaning head assembly of the present invention.
In the figure: 1. a supporting seat; 2. a recycling bin; 3. a cover plate; 4. supporting legs; 5. mounting grooves; 6. a material spraying mechanism; 601. a material spraying head; 602. an access cover; 603. a discharge hole; 604. overhauling the bolt; 605. a fixed mount; 606. a quantity control component; 6061. a first drive shaft; 6062. a mounting head; 6063. a first driving fan; 6064. a threaded hole; 6065. a striker plate; 6066. a first cleaning assembly; 60661. a loading plate; 60662. a screw head; 60663. an adhesive layer; 60664. a kiss layer; 60665. a bristle layer; 7. mounting a plate; 8. a second cleaning assembly; 801. a second drive shaft; 802. a second driving fan; 803. mounting a plate; 804. a cleaning head assembly; 8041. a mounting seat; 8042. mounting grooves; 8043. a slider; 8044. cleaning the hair; 9. a material homogenizing plate; 10. a feed pipe; 11. a recovery pipe; 12. an exhaust pipe; 13. a one-way valve; 14. an air inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, the present invention provides a technical solution: a DMAC multi-stage spraying recycling system comprises a supporting seat 1, a recycling tank 2, a cover plate 3 and supporting legs 4, wherein the top of the supporting seat 1 is fixedly connected with the recycling tank 2, the top of the recycling tank 2 is fixedly connected with the cover plate 3 through bolts, the four corners of the bottom of the supporting seat 1 are respectively and fixedly connected with the supporting legs 4, the bottom of the supporting seat 1 is provided with a mounting groove 5, the inside of the mounting groove 5 is fixedly connected with a mounting plate 7 through bolts, the top of the mounting plate 7 is fixedly connected with a spraying mechanism 6, the top of the spraying mechanism 6 is rotatably connected with a second cleaning component 8, the inner wall of a cavity of the supporting seat 1 is jointly and fixedly connected with a material homogenizing plate 9, the spraying mechanism 6 comprises a spraying head 601, the bottom of the spraying head 601 is fixedly connected with an inspection cover 602 through bolts, the outer wall of the spraying head 601 is provided with a plurality of discharge holes 603, and the inside of the spraying head 601 is provided with a fixing frame 605, the fixed frame 605 and the material spraying head 601 form a fixed connection structure through the overhaul bolt 604, the interior of the material spraying head 601 is rotatably connected with a quantity control assembly 606, the quantity control assembly 606 comprises a first transmission shaft 6061, the top end of the first transmission shaft 6061 is fixedly connected with an installation head 6062, the bottom end of the first transmission shaft 6061 is fixedly connected with a first driving fan 6063, the outer wall of the installation head 6062 is provided with a plurality of threaded holes 6064, the internal threads of two of the threaded holes 6064 are connected with a material baffle 6065, the internal threads of the rest threaded holes 6064 are connected with a first cleaning assembly 6066, the first cleaning assembly 6066 comprises a carrying plate 60661, the top of the carrying plate 60661 is fixedly provided with a viscose layer 60663, the top of the viscose layer 60663 is fixedly provided with a hydrophilic layer 60664, the top of the hydrophilic layer 60664 is fixedly provided with a brush layer 60665, the second cleaning assembly 8 comprises a second transmission shaft 801, the top end of the second transmission shaft 801 is fixedly connected with a second driving fan 802, the bottom end of the second transmission shaft 801 is fixedly connected with a mounting plate 803, the bottom of the mounting plate 803 is fixedly welded with a cleaning head assembly 804, the cleaning head assembly 804 further comprises a mounting seat 8041, the bottom of the mounting seat 8041 is provided with a mounting groove 8042, the inside of the mounting groove 8042 is connected with a slide block 8043 in a sliding manner, the slide block 8043 is connected with the mounting seat 8041 through a bolt, the second cleaning assembly 8 penetrates through the material homogenizing plate 9 in the vertical direction, the contact part of the second cleaning assembly 8 and the material homogenizing plate 9 is connected through a bearing, the bottom of the mounting plate 7 is fixedly connected with a feed pipe 10 and a recovery pipe 11, the feed pipe 10 is positioned in the middle position of the bottom of the mounting plate 7, the recovery pipe 11 is positioned on one side of the feed pipe 10, the top end of the feed pipe 10 penetrates through the mounting plate 7 and is communicated with the inside of the material spraying mechanism 6, the top end of the recovery pipe 11 penetrates through the mounting plate 7 and is communicated with the inside of the recovery box 2, the recovery box 2 is fixedly connected with two side wall exhaust pipes 12, the intermediate position of blast pipe 12 all fixes being provided with check valve 13, and the one end of blast pipe 12 is linked together with the inside of collection box 2, the top fixedly connected with intake pipe 14 of apron 3, the bottom of intake pipe 14 is linked together with the inside of collection box 2, the outer wall screw thread of screw head 60662 and screw hole 6064 internal thread looks adaptation, the common profile shape that forms when striker plate 6065 rotates with screw hole 6064 and the inner structure looks adaptation of spouting material head 601, screw hole 6064 distributes for annular array, and quantity has a plurality of, mount pad 8041 passes through welded mode fixed connection with mounting panel 803, and mount pad 8041 is annular array mode and distributes, all do not take place any chemical reaction with viscose layer 60663 and DMAC on hydrophilic layer 60664.
A usage method of a DMAC multi-stage spraying recycling system comprises the following steps:
step one, preparation work: before the DMAC is recovered, the air inlet pipe 14 is connected with an external waste gas source containing the DMAC, then the inlet pipe 10 is connected with a clean water source, and the recovery pipe 11 is connected with a recovery liquid treatment device.
Step two, introducing DMAC mixed gas: the air supply containing DMAC waste gas enters the interior of the recovery box 2 through the air inlet pipe 14, the second driving fan 802 is driven to rotate under the action of the wind power of the air supply when the air supply is blown in, the cleaning head component 804 is driven to do circular motion along the outer wall of the material spraying head 601 when the second driving fan 802 rotates, and the cleaning bristles 8044 are tightly attached to the outer wall of the material spraying head 601, so that the cleaning effect on impurities in the discharge hole 603 is achieved, the flowing direction of the air flow is disturbed in the rotating process of the second driving fan 802, the air flow is uniformly dispersed, and the air is further uniformly dispersed through the material homogenizing plate 9.
Step three, introducing absorption liquid: when letting in DMAC mist, let in the clear water through inlet pipe 10, the rivers of fast flow promote first drive fan 6063 fast rotation, thereby first transmission shaft 6061 drive striker plate 6065 and first clean subassembly 6066 are circular motion along spouting stub bar 601 inner wall, first clean subassembly 6066 cleans spouting stub bar 601's inner wall, first drive fan 6063 obtains the energy difference according to the velocity of flow difference of rivers, thereby form different rotational speed, during the high rotational speed of first drive fan 6063, the frequency that striker plate 6065 sheltered from discharge opening 603 increases, the volume that the clear water flowed through discharge opening 603 reduces, during the low rotational speed of first drive fan 6063, the frequency that striker plate 6065 sheltered from discharge opening 603 reduces, the volume that the clear water flowed through discharge opening 603 increases, thereby discharge opening 603 spun rivers are in steady state.
Step four, DMAC recovery processing: according to the second step and the third step, the DMAC mixed gas and the water mist sprayed by the spray head 601 are fully mixed in the recovery box 2, according to the characteristic that the DMAC is easily soluble in water, the DMAC and the water mist are fully fused and fall on the bottom of the recovery box 2 under the action of gravity, the DMAC and the water mist enter the recovery liquid treatment equipment through the recovery pipe 11 for next recovery treatment, and other water-insoluble gases in the DMAC mixed gas are discharged through the exhaust pipe 12.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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)
1. The utility model provides a DMAC multilevel spray recovery system of recycling, includes supporting seat (1), collection box (2), apron (3) and supporting legs (4), the top fixedly connected with collection box (2) of supporting seat (1), bolt fixedly connected with apron (3) are passed through at the top of collection box (2), four equal fixedly connected with supporting legs (4) in turning of the bottom of supporting seat (1), its characterized in that: the bottom of the supporting seat (1) is provided with a mounting groove (5), the inside of the mounting groove (5) is fixedly connected with a mounting plate (7) through a bolt, the top of the mounting plate (7) is fixedly connected with a material spraying mechanism (6), the top of the material spraying mechanism (6) is rotatably connected with a second cleaning assembly (8), and the inner wall of the cavity of the supporting seat (1) is fixedly connected with a uniform material plate (9) together;
the material spraying mechanism (6) comprises a material spraying head (601), the bottom of the material spraying head (601) is fixedly connected with an access cover (602) through bolts, the outer wall of the material spraying head (601) is provided with a plurality of discharge holes (603), a fixing frame (605) is arranged inside the material spraying head (601), the fixing frame (605) and the material spraying head (601) form a fixed connection structure through the access bolts (604), and a quantity control assembly (606) is rotatably connected inside the material spraying head (601);
the quantity control assembly (606) comprises a first transmission shaft (6061), the top end of the first transmission shaft (6061) is fixedly connected with a mounting head (6062), the bottom end of the first transmission shaft (6061) is fixedly connected with a first driving fan (6063), the outer wall of the mounting head (6062) is provided with a plurality of threaded holes (6064), the internal threads of two threaded holes (6064) are connected with a material baffle plate (6065), and the internal threads of the rest threaded holes (6064) are connected with a first cleaning assembly (6066);
the first cleaning assembly (6066) comprises an object carrying plate (60661), a viscose layer (60663) is fixedly arranged at the top of the object carrying plate (60661), a hydrophilic layer (60664) is fixedly arranged at the top of the viscose layer (60663), and a bristle layer (60665) is fixedly arranged at the top of the hydrophilic layer (60664);
clean subassembly (8) of second includes second transmission shaft (801), the top fixedly connected with second drive fan (802) of second transmission shaft (801), and the bottom fixedly connected with mounting panel (803) of second transmission shaft (801), the fixed welding in bottom of mounting panel (803) has clean head subassembly (804), clean head subassembly (804) include mount pad (8041) again, mounting groove (8042) have been seted up to the bottom of mount pad (8041), the inside sliding connection of mounting groove (8042) has slider (8043), pass through bolted connection between slider (8043) and mount pad (8041).
2. The DMAC multi-stage spray reclamation system of claim 1, wherein: the second cleaning component (8) penetrates through the homogenizing plate (9) in the vertical direction, and the contact part of the second cleaning component (8) and the homogenizing plate (9) is connected through a bearing.
3. The DMAC multi-stage spray reclamation system of claim 1, wherein: the bottom fixedly connected with inlet pipe (10) and recovery tube (11) of mounting panel (7), inlet pipe (10) are located mounting panel (7) bottom intermediate position, recovery tube (11) are located one side of inlet pipe (10), the top of inlet pipe (10) is run through mounting panel (7) and is linked together with the inside of spouting material mechanism (6), the top of recovery tube (11) is run through mounting panel (7) and is linked together with the inside of collection box (2).
4. The DMAC multi-stage spray reclamation system of claim 1, wherein: the recycling bin is characterized in that exhaust pipes (12) are fixedly connected to two side walls of the recycling bin (2), one-way valves (13) are fixedly arranged in the middle of the exhaust pipes (12), and one ends of the exhaust pipes (12) are communicated with the inside of the recycling bin (2).
5. The DMAC multi-stage spray reclamation system of claim 1, wherein: the top fixedly connected with intake pipe (14) of apron (3), the bottom of intake pipe (14) is linked together with the inside of collection box (2).
6. The DMAC multi-stage spray reclamation system of claim 1, wherein: the outer wall thread of the threaded head (60662) is matched with the inner thread of the threaded hole (6064), and the outline shape formed jointly when the striker plate (6065) and the threaded hole (6064) rotate is matched with the inner structure of the material spraying head (601).
7. The DMAC multi-stage spray reclamation system of claim 1, wherein: the threaded holes (6064) are distributed in an annular array, and the number of the threaded holes is a plurality.
8. The DMAC multi-stage spray reclamation system of claim 1, wherein: the mounting bases (8041) are fixedly connected with the mounting plate (803) in a welding mode, and the mounting bases (8041) are distributed in an annular array mode.
9. A use method of a DMAC multi-stage spraying recycling system is characterized in that: the method comprises the following steps:
step one, preparation work: before the DMAC is recovered, firstly connecting an air inlet pipe (14) with an external waste gas source containing the DMAC, then connecting a feed pipe (10) with a clean water source, and connecting a recovery pipe (11) with a recovery liquid treatment device;
step two, introducing DMAC mixed gas: an air source containing DMAC waste gas enters the interior of the recovery box (2) through the air inlet pipe (14), the second driving fan (802) can be driven to rotate under the action of wind power of the air source when the air source blows in, the cleaning head component (804) is driven to do circular motion along the outer wall of the material spraying head (601) when the second driving fan (802) rotates, and the cleaning bristles (8044) are tightly attached to the outer wall of the material spraying head (601), so that the cleaning effect on impurities in the discharge hole (603) is achieved, the flowing direction of air flow is disturbed during the rotation process of the second driving fan (802), the air flow is uniformly dispersed, and further, the air is further uniformly dispersed through the material homogenizing plate (9);
step three, introducing absorption liquid: when DMAC mixed gas is introduced, clear water is introduced through the feed pipe (10), the first driving fan (6063) is pushed to rotate rapidly by the rapidly flowing water flow, thereby the first transmission shaft (6061) drives the striker plate (6065) and the first cleaning component (6066) to do circular motion along the inner wall of the material spraying head (601), the first cleaning component (6066) cleans the inner wall of the material spraying head (601), the first driving fan (6063) obtains different energy according to the different flow rates of water flow, therefore, different rotating speeds are formed, when the first driving fan (6063) rotates at a high speed, the frequency of the material baffle plate (6065) for shielding the discharge hole (603) is increased, the amount of clean water flowing through the discharge hole (603) is reduced, when the first driving fan (6063) rotates at a low speed, the frequency of the material baffle plate (6065) for shielding the discharge hole (603) is reduced, the amount of clean water flowing through the discharge hole (603) is increased, and therefore water flow sprayed out of the discharge hole (603) is in a stable state;
step four, DMAC recovery processing: according to the second step and the third step, the DMAC mixed gas and the water mist sprayed by the spray head (601) are fully mixed in the recovery box (2), according to the characteristic that DMAC is easily soluble in water, DMAC and water mist are fully fused and fall to the bottom of the recovery box (2) under the action of gravity, the DMAC and the water mist enter the recovery liquid treatment equipment through the recovery pipe (11) for next recovery treatment, and other water-insoluble gases in the DMAC mixed gas are discharged through the exhaust pipe (12).
10. The DMAC multi-stage spray reclamation system of claim 9, wherein: the hydrophilic layer (60664) and the adhesive layer (60663) do not have any chemical reaction with DMAC.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114832530A (en) * | 2022-05-13 | 2022-08-02 | 杭州青云新材料股份有限公司 | DMAC (dimethylacetamide) multi-stage spraying recycling system and method |
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| JPH09327615A (en) * | 1996-06-11 | 1997-12-22 | Nec Corp | Exhaust gas treatment apparatus |
| CN110975575A (en) * | 2019-12-12 | 2020-04-10 | 宾采尔环境技术(江苏)有限公司 | Spray tower for industrial waste gas treatment and spray method thereof |
| CN212284604U (en) * | 2020-01-15 | 2021-01-05 | 长乐恒申合纤科技有限公司 | Crystal cleaning device of DMAC (dimethylacetamide) recovery system |
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2021
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09327615A (en) * | 1996-06-11 | 1997-12-22 | Nec Corp | Exhaust gas treatment apparatus |
| CN110975575A (en) * | 2019-12-12 | 2020-04-10 | 宾采尔环境技术(江苏)有限公司 | Spray tower for industrial waste gas treatment and spray method thereof |
| CN212284604U (en) * | 2020-01-15 | 2021-01-05 | 长乐恒申合纤科技有限公司 | Crystal cleaning device of DMAC (dimethylacetamide) recovery system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114832530A (en) * | 2022-05-13 | 2022-08-02 | 杭州青云新材料股份有限公司 | DMAC (dimethylacetamide) multi-stage spraying recycling system and method |
| CN114832530B (en) * | 2022-05-13 | 2023-07-18 | 杭州青云新材料股份有限公司 | DMAC multistage spraying recycling system and method |
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