CN111001647A - Synthetic leather rectification residue recycling process and equipment thereof - Google Patents
Synthetic leather rectification residue recycling process and equipment thereof Download PDFInfo
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- CN111001647A CN111001647A CN201911228575.8A CN201911228575A CN111001647A CN 111001647 A CN111001647 A CN 111001647A CN 201911228575 A CN201911228575 A CN 201911228575A CN 111001647 A CN111001647 A CN 111001647A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000008569 process Effects 0.000 title claims abstract description 39
- 239000002649 leather substitute Substances 0.000 title claims abstract description 26
- 238000004064 recycling Methods 0.000 title claims abstract description 18
- 239000012065 filter cake Substances 0.000 claims abstract description 90
- 238000003756 stirring Methods 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000005086 pumping Methods 0.000 claims abstract description 34
- 238000011049 filling Methods 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000000706 filtrate Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 53
- 239000002699 waste material Substances 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 25
- 239000002351 wastewater Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 41
- 239000012634 fragment Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000007790 solid phase Substances 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000002131 composite material Substances 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
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- 230000001737 promoting effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/22—Crushing mills with screw-shaped crushing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a synthetic leather rectification residue recycling process and equipment thereof, wherein the process comprises the following process steps: s1: pumping the residue in the rectifying tower into a recovery pot for temporary storage, and pumping the residue temporarily stored in the recovery pot into a reaction kettle; s2: pumping clear water into the reaction kettle in the step S1, stirring, and fully stirring to obtain a mixed solution; s3: pumping the mixed solution obtained in the step S2 into a middle tank for standing; s4: pumping the mixed liquid at the bottom of the intermediate tank in the step S3 into a filter press for filter pressing to obtain a solid filter cake and a liquid filtrate; s5: and (5) drying the filter cake obtained in the step (S4), and crushing the dried filter cake by a crusher to obtain the regenerated filling powder. The invention has the effect of recovering the filling powder in the rectification residue to obtain the regenerated filling powder.
Description
Technical Field
The invention relates to the technical field of waste residue treatment processes, in particular to a synthetic leather rectification residue recycling process and equipment thereof.
Background
Along with the increase of world population and the rapid development of economy of all countries, the demand of human beings on leather is multiplied, the animal skin resources are totally deficient, the processing cost is rapidly increased and serious environmental pollution is accompanied, so that the natural leather cannot meet the normal demand of people, and under the condition, the appearance and the development of the synthetic leather make up the shortage of the natural leather in quantity.
Synthetic leather is a material that is formed by artificially synthesizing a base cloth made of a material such as woven cloth, nonwoven cloth, or double-layered leather, and forming a natural leather-like appearance on the base cloth. With the advent of new technology and technology, synthetic leather has incomparable advantages in the aspects of variety, style, design and color, performance and the like.
The rapid development of the synthetic leather industry generates a series of non-negligible environmental pollution problems, wherein the waste residue pollution is mainly residue generated in the process of DMF recycling and rectification, and more than 300 kg of residue can be generated in one production line. The residue contains not only part of DMF which is not completely rectified and recovered, but also a large amount of filling powder added in the artificial leather manufacturing process, such as lignin fiber powder, light calcium carbonate and the like, and the filling powder is insoluble in water and organic solvent and finally becomes a solid phase in the residue to form viscous rectification residue together with liquid-phase DMF.
For example, the chinese patent with the publication number CN1891685 discloses a triple-effect rectification recovery method of synthetic leather dimethylformamide solution by wet process, which comprises the following steps: feeding, preheating, concentrating and separating through a concentration tower and a rectification tower, discharging and forming a recovery process flow, wherein low-pressure steam is used as a heating medium, and a first-stage reduced pressure concentration, a second-stage normal pressure concentration and a reduced pressure rectification process are adopted, wherein the first-stage reduced pressure concentration adopts a packed tower, the second-stage normal pressure concentration adopts a plate tower, and the reduced pressure rectification adopts a packed and plate composite tower; the recovery process flow adopts a circulation process, and the generated heat energy is recycled among the tower top steam, tower kettle heating, feeding preheating, finished product condensation preheating, rectification and reboiling working procedures.
The above prior art solutions have the following drawbacks: the waste liquid in the wet artificial leather is rectified to recover DMF in the waste liquid, and in the actual production process, the waste liquid is rectified to leave rectification residues, the components of the rectification residues comprise DMF which is not completely rectified and collected, and filling powder such as lignin fiber, light calcium carbonate and the like which must be added in the wet artificial leather is also a filling powder which accounts for a large cost in the wet artificial leather, so that a rectification residue treatment process capable of recovering the filling powder in the rectification residues to obtain regenerated filling powder and equipment suitable for the process are needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a synthetic leather rectification residue recycling process and equipment thereof, which have the effect of recovering filling powder in rectification residues to obtain regenerated filling powder.
The above object of the present invention is achieved by the following technical solutions:
a synthetic leather rectification residue recycling process and equipment thereof comprise the following process steps:
s1: pumping the residue in the rectifying tower into a recovery pot for temporary storage, and pumping the residue temporarily stored in the recovery pot into a reaction kettle;
s2: pumping clear water into the reaction kettle in the step S1, stirring, and fully stirring to obtain a mixed solution;
s3: pumping the mixed solution obtained in the step S2 into a middle tank for standing;
s4: pumping the mixed liquid at the bottom of the intermediate tank in the step S3 into a filter press for filter pressing to obtain a solid filter cake and a liquid filtrate;
s5: and (5) drying the filter cake obtained in the step (S4), and crushing the dried filter cake by a crusher to obtain the regenerated filling powder.
By adopting the technical scheme, wherein,
the rectifying tower needs to rectify and recycle the DMF, and after rectification is completed each time, the rectification residue is pumped into a recovery pot for temporary storage so as to reduce the influence on the rectifying process of the rectifying tower. When the rectification residue is treated, the rectification residue in the recovery pot needs to be pumped into the reaction kettle firstly.
By pumping clear water into the reaction kettle, the liquid phase DMF in the rectification residue can be infinitely mutually dissolved with the clear water, so that the liquid DMF is transferred into the clear water, and the solid filling powder is fully dispersed under the action of heating and stirring, so that a mixed liquid with the liquid phase of water and the DMF and the solid phase of the filling powder is formed in the reaction kettle.
Pumping the mixed solution into an intermediate tank for standing after the preparation of the mixed solution is finished, wherein in the standing process, solid filling powder is gradually precipitated under the action of gravity to form layering, the upper layer is mainly the mixed solution of DMF and clear water, and the lower layer is mainly the solid filling powder; and the reaction kettle after the mixed liquid is pumped out can continue to process the rectification residue.
The mixed liquid at the bottom of the intermediate tank is subjected to filter pressing through the filter press, namely the mixed liquid treated by the filter press is the mixed liquid with the highest solid content in the intermediate tank, so that the working efficiency of the filter press is improved.
The filter cake obtained by filter pressing is solid-phase filling powder and a small amount of clear water and DMF, and when the filter cake is dried in the subsequent process, the clear water and DMF in the filter cake volatilize, and only the solid-phase filling powder is left in the dried filter cake. And crushing the filter cake by a crusher to obtain the required regenerated filling powder.
The invention is further configured to: after the step S5, the step S6 of treating wastewater specifically includes:
step a, pumping the supernatant in the intermediate tank in the step S3 into a wastewater tank, and pumping the filtrate in the step S4 into the wastewater tank to obtain a waste liquid mixture;
b, stirring and mixing the waste liquid mixture in the waste water tank in the step a;
c, pumping the waste liquid mixture stirred and mixed in the step b into a waste water storage tank;
and d, pumping the waste liquid mixture in the waste water storage tank in the step c into a rectifying tower for rectifying again so as to rectify and recover the DMF in the waste liquid mixture.
By adopting the technical scheme, the supernatant liquid of the intermediate tank has very little solid content, so that the supernatant liquid can be directly pumped into a wastewater tank; and the filtrate obtained by pressure filtration also needs to be pumped into a waste water tank in a centralized way to form a waste liquid mixture.
Waste liquid mixture in the waste water tank can be directly pumped into the waste water storage tank after being stirred to temporarily store waste liquid.
The DMF in the waste liquid still exists, so that the recovery value is high, and the DMF can be pumped into the rectifying tower again for rectification, thereby further recovering the DMF in the waste liquid. Therefore, the solid phase components and the liquid phase components in the rectification waste residues are effectively separated and utilized, the discharge of pollutants is reduced, and the production cost is reduced by further recovering DMF and filling powder.
The invention is further configured to: the crusher in the step S5 comprises a frame, wherein a crusher body is installed on the frame, and a pre-crushing mechanism is connected to the crusher body.
By adopting the technical scheme, the filter cake obtained by filter pressing is very hard after being dried due to the characteristics of the filter press, common crushing equipment is not suitable for crushing large filter cakes, the large crushing equipment is generally difficult to crush the filter cake to smaller particle size, and the small crushing equipment cannot directly crush the dried filter cake, so that a crusher suitable for the process is needed for crushing the filter cake generated in the process.
Wherein the pre-crushing mechanism can crush the filter cake with larger size into fragments with smaller size so as to facilitate the further crushing of the common crusher.
The invention is further configured to: the pre-crushing mechanism comprises a pre-crushing barrel, the pre-crushing barrel is communicated with the crusher body, a first screw rod and a second screw rod are installed in the pre-crushing barrel in a rotating mode, the screw thread on the first screw rod is opposite in precession direction, the first screw rod and the second screw rod form a crushing port for a filter cake, one side of the pre-crushing barrel is further installed on the rack and used for driving the first screw rod and a first driving mechanism capable of rotating in opposite directions of the second screw rod.
Through adopting above-mentioned technical scheme, first actuating mechanism starts and to drive first screw rod and second screw rod and take place relative rotation, and when first screw rod and second screw rod rotate relatively, the screw thread on the first screw rod and the screw thread on the second screw rod form the crushing mouth of filter cake, when constantly promoting the filter cake to advance along the precomminution bucket, constantly form the extrusion to the filter cake to extrude the filter cake and break into less fragment. The small-sized fragments are pushed by the first screw and the second screw to finally enter the crusher body for further crushing.
The invention is further configured to: the first driving mechanism comprises a first driving motor fixedly mounted on the rack, a first bevel gear is fixedly sleeved on a rotating shaft of the first driving motor, a transmission part is fixedly mounted on the rack between the first driving motor and the pre-crushing barrel, the transmission part comprises a shell fixedly mounted on the rack, a first driving rod and a second driving rod are respectively rotatably mounted on a group of opposite side walls of the shell, a second bevel gear is rotatably sleeved on the first driving rod, the first bevel gear penetrates through the shell and is meshed with the second bevel gear, a plurality of mounting frames are circumferentially mounted on the side wall of one side of the second bevel gear, which is close to the second driving rod, a mounting rod is rotatably mounted on the side wall of one side of the mounting frames, and a third bevel gear is fixedly sleeved on the mounting rods, and a fourth bevel gear is fixedly sleeved and installed at one end, close to each other, of the first driving rod and the second driving rod, and the fourth bevel gear is meshed with the third bevel gear.
By adopting the technical scheme, the first bevel gear rotates along with the first driving motor when the first driving motor is started, and the second bevel gear rotates under the driving of the first bevel gear due to the meshing of the first bevel gear and the second bevel gear, but the second bevel gear is in rotating connection with the first driving rod, so that the second bevel gear can not directly drive the first driving rod to rotate. And the rotation of second bevel gear can drive the mounting bracket and rotate, then the third bevel gear of installing on the mounting bracket uses the axis of second bevel gear to rotate as the pivot, and because third bevel gear and fourth bevel gear intermeshing, can drive the rotation of fourth bevel gear when consequently third bevel gear rotates. And the two fourth bevel gears respectively drive the first driving rod and the second driving rod to rotate so as to form power output.
The invention is further configured to: one ends, far away from the crusher body, of the first screw rod and the second screw rod penetrate through the pre-crushing barrel, a first transmission worm gear is fixedly sleeved on the first screw rod outside the pre-crushing barrel, and a second transmission worm gear is fixedly sleeved on the second screw rod outside the pre-crushing barrel; the first actuating lever with the one end that the second actuating lever kept away from each other all runs through the casing, just the casing is external key joint installs first transmission worm on the first actuating lever, first transmission worm with first transmission worm wheel meshing, the casing is external key joint installs the second transmission worm on the second actuating lever, the second transmission worm with second transmission worm wheel meshing.
Through adopting above-mentioned technical scheme, through the cooperation of first transmission worm and first transmission worm wheel, first actuating lever can drive first screw rod and rotate, and through the cooperation of second transmission worm and second transmission worm wheel, the second actuating lever can drive the second screw rod and rotate, and the rotation direction of first screw rod and second screw rod is relative rotation.
In addition, because the filter cake is hard, the first screw or the second screw cannot crush the filter cake, so that the first screw or the second screw may be stuck. Once the first screw or the second screw is stuck by the filter cake, the third bevel gear rotates by taking the mounting rod as a rotating shaft, and one of the two fourth bevel gears is stuck, the third bevel gear can drive the other fourth bevel gear to rotate in the rotating process, so that the power of the first driving motor is completely output to the other fourth bevel gear. When the first screw rod is clamped, the power of the first driving motor is completely output to the second screw rod so as to improve the crushing force on the filter cake; when the second screw rod is blocked, the power of the first driving motor is completely output to the first screw rod, so that the crushing force on the filter cake is improved. The filter cake piece that is difficult for smashing is smashed with easily, and after the filter cake piece was smashed, first screw rod and the cooperation of second screw rod are in order to improve the crushing effect to the filter cake piece.
The invention is further configured to: first screw rod with the second screw rod is kept away from first driving motor's one end all through rotating the connecting piece with the inside wall of precomminution bucket links to each other, it includes fixed mounting to rotate the connecting piece first screw rod with first connecting block on the second screw rod, first connecting block is kept away from first screw rod or the holding tank has been seted up to the one end of second screw rod, and then fixed mounting has the immersible on the lateral wall of rubbing crusher body second connecting block in the holding tank, a plurality of roller grooves have been seted up to circumference on the week lateral wall of second connecting block, the roller inslot rotation is installed and is changeed the roller, change the roller with holding tank inside wall roll connection.
Through adopting above-mentioned technical scheme, because the inside wall of holding tank and commentaries on classics roller roll connection, consequently the connected mode of first connecting block and second connecting block also is roll connection, then further first screw rod and second screw rod become rolling friction through the frictional force of the rotation connecting piece that additionally sets up and the lateral wall of rubbing crusher body to reduce the wearing and tearing of pre-crushing mechanism, in order to improve the life-span of pre-crushing mechanism.
The invention is further configured to: still install the primary crushing device on the feeder hopper, the primary crushing device rotates including installing first primary crushing roller and second primary crushing roller in the feeder hopper, be provided with first stirring piece along length direction circumference on the first primary crushing roller, then be provided with the second along length direction circumference on the second primary crushing roller and stir the piece, first stirring piece with the second stirs the crisscross setting of piece, and adjacent first stirring piece and second stir the piece and form the primary crushing mouth to the filter cake.
By adopting the technical scheme, because the size of the dried filter cake is large, the mode of manually crushing is very laborious, but the filter cake which is directly untreated and has large size is easily clamped on the feed hopper after the filter cake is directly put into the feed hopper. The extra preliminary broken device that sets up can form the preliminary break mouth to the filter cake through the rotation of first stirring piece and second stirring piece to cracked the filter cake fragment that is small-size with the large size filter cake, further smash the filter cake fragment with convenient precomminution mechanism, make the difficult card of precomminution mechanism die.
The invention is further configured to: and the side walls of the first stirring block and the second stirring block towards one side of the rotation direction are both fixedly provided with feeding blocks for dragging filter cakes.
Through adopting above-mentioned technical scheme, the feed block that additionally sets up can drag the filter cake and move towards the initial break mouth that first stirring piece and second stirring piece formed when rotating. And when the filter cake size is too big, when being difficult for being stirred by first stirring piece and second stirring piece, the feeding piece can drive the filter cake and remove so that the filter cake constantly adjusts the position under the effect of gravity and the drive of feeding piece to easily stir the bits through first stirring piece and second stirring piece.
The invention is further configured to: the rack is also provided with a primary crushing driving piece for driving a primary crushing device, the primary crushing driving piece comprises a cushion table, the cushion table is fixedly arranged on the rack on one side of the feed hopper, a primary crushing driving motor is fixedly arranged on the cushion table, a primary crushing worm is arranged on a rotating shaft of the primary crushing driving motor in a key connection mode, the other end of the primary crushing worm is rotatably connected with a first supporting block fixedly arranged on the cushion table, a second supporting block is respectively and fixedly arranged on the cushion table on two sides of the primary crushing worm, transmission rods are rotatably arranged on the two second supporting blocks, a primary crushing worm wheel meshed with the primary crushing worm is fixedly sleeved on each transmission rod, and a primary crushing transmission gear is fixedly sleeved at two ends of each transmission rod; and the feeder hopper is all run through to the one end of first primary crushing roller and the first primary crushing roller of second, and all fixed cup joints on first primary crushing roller outside the feeder hopper and the first primary crushing roller of second and installs the driven plate, and equal circumference is installed driven ring gear on two driven plates are close to the lateral wall on first primary crushing drive gear one side, and driven ring gear and the meshing of first primary crushing drive gear.
Through adopting above-mentioned technical scheme, the drive motor of just breaking up starts, through the cooperation of just breaking up worm and the just breaking up worm wheel, drives the transfer line and rotates, and the rotation of transfer line can drive two just breaking up drive gear rotations. The two primary crushing transmission gears are respectively meshed with a driven gear ring on the driven disc to drive the driven disc to rotate so as to further drive the first primary crushing roller and the second primary crushing roller to rotate relatively.
In conclusion, the beneficial technical effects of the invention are as follows:
1. by designing a recycling process of the rectification residues, the filling powder in the rectification residues is recycled to obtain regenerated filling powder so as to reduce the emission of pollutants and the production cost;
2. the wastewater is rectified again to further recover DMF in the wastewater so as to reduce the emission of pollutants and the production cost;
3. because the hardness of the filter cake obtained after filter pressing and drying is higher, the filter cake with larger size is firstly crushed into filter cake particles with smaller size by arranging the pre-crushing mechanism, so that the filter cake is further crushed into powder by the crusher body;
4. by arranging the transmission part, when the first screw and the second screw are not clamped, the first screw and the second screw are matched to crush the filter cake, and when the first screw or the second screw is clamped due to the hardness, the size and the like of the filter cake, the transmission part can intensively transmit the power of the first driving motor to the first screw or the second screw so as to crush the filter cake which is not easy to crush;
5. through the arrangement of the rotary connecting piece, the friction force between the first screw rod and the second screw rod and the side wall of the pre-crushing barrel is changed into rolling friction, so that the service life of the pre-crushing mechanism is prolonged;
6. through setting up the primary crushing device, then in the filter cake through drying can directly drop into the feeder hopper through no processing, filter cake through the primary crushing device by force smashes into the chunky to in advance the rubbing crusher structure further smashes, and make in advance the difficult card of rubbing crusher structure die.
Drawings
FIG. 1 is a schematic view of the overall structure of the crusher of the present invention;
FIG. 2 is a sectional view of the pre-crushing barrel of the present invention, showing the structure of the first screw and the second screw;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;
FIG. 4 is a schematic view showing the overall construction of the first driving mechanism and the transmission member according to the present invention;
FIG. 5 is an enlarged partial view of portion B of FIG. 4;
FIG. 6 is a schematic view of the primary crushing apparatus and the primary crushing drive member of the present invention.
In the figure, 1, a frame; 11. a pulverizer body; 2. a pre-crushing mechanism; 21. pre-crushing a barrel; 22. an accommodating chamber; 23. a first screw; 24. a second screw; 25. a feed hopper; 3. rotating the connecting piece; 31. a first connection block; 32. accommodating grooves; 33. a second connecting block; 34. a roller groove; 35. rotating the roller; 41. a first drive worm gear; 42. a second drive worm gear; 5. a first drive mechanism; 51. a first drive motor; 52. a first bevel gear; 6. a transmission member; 61. a housing; 62. a first drive lever; 63. a second drive lever; 64. a second bevel gear; 65. a mounting frame; 66. mounting a rod; 67. a third bevel gear; 68. a fourth bevel gear; 69. a first drive worm; 610. a second drive worm; 7. a primary crushing device; 71. a first primary crushing roller; 72. a second primary crushing roller; 73. a first stirring block; 74. a second stirring block; 75. a material feeding block; 8. primary crushing of the driving piece; 81. a cushion table; 82. primarily crushing the driving motor; 83. primarily crushing the worm; 85. a second support block; 86. a transmission rod; 87. primarily crushing a worm wheel; 88. primarily crushing the transmission gear; 89. a driven plate; 810. a driven ring gear.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention discloses a synthetic leather rectification residue recycling process and equipment thereof, wherein the process specifically comprises the following process steps:
s1: pumping the residue in the rectifying tower into a recovery pot for temporary storage, and pumping the residue in the recovery pot into a reaction kettle when the rectifying residue needs to be treated.
S2: pumping clear water into the reaction kettle in the step S1, and then stirring to obtain a mixed solution. Wherein the heating temperature is 80 ℃, the stirring speed is 300r/min, and the stirring time is 45 minutes.
S3: and (4) pumping the mixed solution obtained in the step S2 into a middle tank for standing for more than or equal to 1 hour so as to fully separate the solid phase from the liquid phase.
S4: and (4) pumping the mixed liquid at the bottom of the intermediate tank in the step (S3) into a filter press for filter pressing to obtain a solid filter cake and liquid filtrate.
S5: and (5) drying the filter cake obtained in the step (S4), and crushing the dried filter cake by a crusher to obtain the regenerated filling powder.
S6: the treatment of the wastewater specifically comprises:
step a, pumping the supernatant in the intermediate tank in the step S3 into a wastewater tank, and pumping the filtrate in the step S4 into the wastewater tank to obtain a waste liquid mixture;
b, stirring and mixing the waste liquid mixture in the waste water tank in the step a at the stirring speed of 300r/min for more than or equal to 25 minutes;
c, pumping the waste liquid mixture stirred and mixed in the step b into a waste water storage tank;
and d, pumping the waste liquid mixture in the waste water storage tank in the step c into a rectifying tower for rectifying again so as to rectify and recover the DMF in the waste liquid mixture.
As shown in fig. 1, the crusher in step S5 includes a frame 1, a crusher body 11 is fixedly mounted on the frame 1, and a pre-crushing mechanism 2 is further mounted on the crusher body 11.
As shown in fig. 1 and 2, the pre-crushing mechanism 2 includes a pre-crushing barrel 21 horizontally mounted on the crusher body 11, and the pre-crushing barrel 21 communicates with the crusher body 11. Two communicated cylindrical containing cavities 22 are formed in the pre-crushing barrel 21, and a first screw 23 and a second screw 24 are rotatably mounted in the two containing cavities 22 respectively. The end of the pre-crushing barrel 21 far away from the crusher body 11 is fixedly provided with a feed hopper 25, and the feed hopper 25 is communicated with the accommodating cavity 22 of the pre-crushing barrel 21. The screw threads on the first screw 23 and the second screw 24 are screwed in opposite directions, and the first screw 23 and the second screw 24 form a crushing port for filter cakes. Wherein, the ends of the first screw 23 and the second screw 24 close to the crusher body 11 are connected with the inner side wall of the pre-crushing barrel 21 through the rotating connecting piece 3.
As shown in fig. 2 and 3, the rotary connector 3 includes a first connecting block 31 fixedly mounted on one end of the first screw 23 and the second screw 24 close to the crusher body 11, the first connecting block 31 is in a circular truncated cone shape, and a circular truncated cone-shaped accommodating groove 32 is further formed on a side wall of the first connecting block 31 on a side far away from the first screw 23 or the second screw 24. Two second connecting blocks 33 are fixedly mounted on the outer side wall of the pulverizer body 11 in the pre-crushing barrel 21, and the second connecting blocks 33 are circular truncated cone-shaped and can sink into the accommodating groove 32. A plurality of roller grooves 34 have been seted up to circumference on the week lateral wall of second connecting block 33, all rotate in every roller groove 34 and install a commentaries on classics roller 35, and rotate and the inside wall roll connection of holding tank 32.
As shown in fig. 1 and 4, the ends of the first screw 23 and the second screw 24 away from the crusher body 11 both penetrate the pre-crushing barrel 21 and are rotatably connected to the pre-crushing barrel 21. The first screw 23 outside the pre-crushing barrel 21 is fixedly sleeved with a first transmission worm gear 41, and the second screw 24 outside the pre-crushing barrel 21 is fixedly sleeved with a second transmission worm gear 42.
The frame 1 is provided with a first driving mechanism 5 for driving the first screw 23 and the second screw 24 to rotate oppositely. The first driving mechanism 5 comprises a first driving motor 51 fixedly arranged on the frame 1 at one side of the pre-crushing barrel 21, and a first bevel gear 52 is fixedly sleeved on a rotating shaft of the first driving motor 51.
The frame 1 is further provided with a transmission member 6 for transmitting the power of the first driving motor 51 to the first screw 23 and the second screw 24. The transmission member 6 comprises a housing 61 fixedly mounted on the frame 1 between the first driven electrolytic and pre-crushing drum 21. The rotating shaft of the first driving motor 51 and the first bevel gear 52 both penetrate the housing 61 and are located inside the housing 61.
As shown in fig. 4 and 5, a first driving rod 62 and a second driving rod 63 are rotatably mounted on a set of two inner side walls of the housing 61 on two sides of the first bevel gear 52, respectively, wherein a second bevel gear 64 is rotatably sleeved on the first driving rod 62, and the second bevel gear 64 is engaged with the first bevel gear 52. A set of two mounting brackets 65 are installed to the lateral wall that second bevel gear 64 is close to second actuating lever 63 one side on circumference equidistance, and the one end that second bevel gear 64 was kept away from to two mounting brackets 65 all rotates on the lateral wall that is close to one side each other and installs an installation pole 66, and equal fixed socket joint installs a third bevel gear 67 on two installation poles 66. And a fourth bevel gear 68 is fixedly sleeved and installed on the end, close to each other, of each of the first driving rod 62 and the second driving rod 63, and each of the third bevel gears 67 is meshed with two of the fourth bevel gears 68.
The ends of the first driving rod 62 and the second driving rod 63, which are far away from each other, penetrate through the housing 61 and are rotatably connected with the housing 61. Wherein the first driving rod 62 outside the housing 61 is keyed with a first driving worm 69, and the first driving worm 69 is meshed with the first driving worm wheel 41 on the first screw 23; the second driving rod 63 outside the housing 61 is mounted with a second driving worm 610 in a key connection, and the second driving worm 610 is engaged with the second driving worm wheel 42 on the second screw 24.
As shown in fig. 1 and 6, a primary crushing device 7 for crushing large-size filter cakes is further installed on the feed hopper 25, and the primary crushing device 7 comprises a first primary crushing roller 71 and a second primary crushing roller 72 which are rotatably installed in the feed hopper 25, and the axis of the first primary crushing roller 71 is parallel to the axis of the second primary crushing roller 72. Wherein, the peripheral side wall of the first primary crushing roller 71 is circumferentially provided with a first stirring block 73 along the length direction, the peripheral side wall of the second primary crushing roller 72 is circumferentially provided with a second stirring block 74 along the length direction, and the adjacent first stirring blocks 73 and second stirring blocks 74 are arranged in a staggered way so as to form a primary crushing opening for large-size filter cakes.
A feeding block 75 for dragging the filter cake is integrally formed on one end, far away from the first primary crushing roller 71, of the first stirring block 73 and towards one side in the rotating direction, and a feeding block 75 for dragging the filter cake is also integrally formed on one end, far away from the second primary crushing roller 72, of the second stirring block 74 and towards one side in the rotating direction.
The frame 1 is also provided with a primary crushing driving piece 8 for driving the primary crushing device 7. The primary crushing driving member 8 includes a cushion table 81 fixedly installed on the frame 1 on one side of the feed hopper 25, and a primary crushing driving motor 82 is fixedly installed on the cushion table 81. The rotating shaft of the primary crushing driving motor 82 is keyed with a primary crushing worm 83, and the other end of the primary crushing worm 83 is rotatably connected with a first supporting block (not shown in the figure) fixedly installed on the cushion table 81. The cushion tables 81 on two sides of the preliminary crushing worm 83 are respectively and fixedly provided with a second supporting block 85, and the two second supporting blocks 85 are rotatably provided with a transmission rod 86. A first-breaking worm gear 87 meshed with the first-breaking worm 83 is fixedly sleeved on the transmission rod 86 between the two second supporting blocks 85. Both ends of the transmission rod 86 penetrate through a second supporting block 85 and are fixedly sleeved with a first-break transmission gear 88.
The feed hopper 25 is all run through to the one end that first primary crushing roller 71 and second primary crushing roller 72 are close to the primary crushing motor to rotate with the feed hopper 25 and be connected, and equal vertical fixed mounting has a driven plate 89 on first primary crushing roller 71 and the second primary crushing roller 72, and driven ring gear 810 is all installed to equal circumference on two driven plates 89 are close to the lateral wall on primary crushing drive gear 88 one side, and driven ring gear 810 meshes with primary crushing drive gear 88.
The implementation principle of the embodiment is as follows: the characteristics of the filter press make the filter cake obtained by filter pressing very hard after being dried, while general crushing equipment is not suitable for crushing large filter cakes, large-scale crushing equipment is generally difficult to crush the filter cake to smaller particle size, and small-scale crushing equipment cannot directly crush the dried filter cake, so that a crusher suitable for the process of the invention is needed for crushing the filter cake generated in the process.
The filter cake after being filtered and dried is directly placed into the feed hopper 25, the primary crushing driving motor 82 is started, the transmission rod 86 is driven to rotate through the cooperation of the primary crushing worm 83 and the primary crushing worm wheel 87, and the rotation of the transmission rod 86 can drive the two primary crushing transmission gears 88 to rotate. The two primary crushing transmission gears 88 respectively drive the driven disc 89 to rotate by meshing with the driven gear ring 810 on the driven disc 89, so as to further drive the first primary crushing roller 71 and the second primary crushing roller 72 to rotate relatively.
The relative rotation of the first primary crushing roller 71 and the second primary crushing roller 72 can drive the first stirring block 73 and the second stirring block 74 to rotate, so as to form a primary crushing opening for the filter cake, and the filter cake with large size can be crushed into filter cake fragments with small size. The additionally provided feed block 75, when rotated, is able to drag the filter cake towards the primary openings formed by the first and second agitator blocks 73, 74. And when the filter cake is too large to be easily crushed by the first stirring block 73 and the second stirring block 74, the feeding block 75 can drive the filter cake to move so that the filter cake can be continuously adjusted in position under the action of gravity and the driving of the feeding block 75 to be easily crushed by the first stirring block 73 and the second stirring block 74.
The large size filter cake is broken up by the primary crushing device 7 into smaller size filter cake fragments which fall into the feed hopper 25. At this time, the first driving motor 51 is started, the first bevel gear 52 rotates when the first driving motor 51 is started, the second bevel gear 64 rotates under the driving of the first bevel gear 52 because the first bevel gear 52 is meshed with the second bevel gear 64, but the second bevel gear 64 is rotationally connected with the first driving rod 62, and therefore the second bevel gear 64 does not directly drive the first driving rod 62 to rotate. The rotation of the second bevel gear 64 can drive the mounting frame 65 to rotate, the third bevel gear 67 mounted on the mounting frame 65 rotates by taking the axis of the second bevel gear 64 as a rotating shaft, and the third bevel gear 67 and the fourth bevel gear 68 are meshed with each other, so that the third bevel gear 67 can drive the fourth bevel gear 68 to rotate when rotating. The two fourth bevel gears 68 respectively rotate the first driving rod 62 and the second driving rod 63.
The first driving rod 62 can drive the first screw 23 to rotate through the cooperation of the first transmission worm 69 and the first transmission worm wheel 41, and the second driving rod 63 can drive the second screw 24 to rotate through the cooperation of the second transmission worm 610 and the second transmission worm wheel 42, and the rotation directions of the first screw 23 and the second screw 24 are relative rotation. The first screw 23 and the second screw 24 rotate relatively, so that the threads on the first screw 23 and the threads on the second screw 24 form a crushing port of the filter cake, and the filter cake is continuously extruded while being continuously pushed to advance along the pre-crushing barrel 21, so that the filter cake is crushed into smaller pieces. The smaller pieces are pushed by the first screw 23 and the second screw 24 and finally enter the crusher body 11 for further crushing.
In this process, because the cake is hard, there is a possibility that the first screw 23 or the second screw 24 cannot crush the cake, and the first screw 23 or the second screw 24 is jammed. Once the first screw 23 or the second screw 24 is stuck by the filter cake, the third bevel gear 67 rotates around the mounting rod 66, and one of the two fourth bevel gears 68 is stuck, so that the third bevel gear 67 can drive the other fourth bevel gear 68 to rotate during the rotation process, thereby outputting all the power of the first driving motor 51 to the other fourth bevel gear 68. When the first screw 23 is stuck, the power of the first driving motor 51 is completely output to the second screw 24, so as to improve the crushing force on the filter cake; when the second screw 24 is locked, the power of the first driving motor 51 is totally output to the first screw 23 to improve the crushing force to the filter cake. The filter cake blocks which are not easy to crush are easily crushed, and after the filter cake blocks are crushed by the first screw 23 or the second screw 24 with stronger power, the first screw 23 and the second screw 24 are matched to improve the crushing effect of the filter cake blocks.
In the rotating process of the first screw 23 and the second screw 24, because the inner side wall of the accommodating groove 32 is in rolling connection with the rotating roller 35, the connection mode of the first connecting block 31 and the second connecting block 33 is also in rolling connection, and the friction force between the first screw 23 and the second screw 24 and the inner side wall of the pre-crushing barrel 21 is changed into rolling friction through the additionally arranged rotating connecting piece 3, so that the abrasion of the pre-crushing mechanism 2 is reduced, and the service life of the pre-crushing mechanism 2 is prolonged.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A synthetic leather rectification residue cyclic utilization process and equipment thereof are characterized in that: the method comprises the following process steps:
s1: pumping the residue in the rectifying tower into a recovery pot for temporary storage, and pumping the residue temporarily stored in the recovery pot into a reaction kettle;
s2: pumping clear water into the reaction kettle in the step S1, stirring, and fully stirring to obtain a mixed solution;
s3: pumping the mixed solution obtained in the step S2 into a middle tank for standing;
s4: pumping the mixed liquid at the bottom of the intermediate tank in the step S3 into a filter press for filter pressing to obtain a solid filter cake and a liquid filtrate;
s5: and (5) drying the filter cake obtained in the step (S4), and crushing the dried filter cake by a crusher to obtain the regenerated filling powder.
2. The process and the equipment for recycling the synthetic leather rectification residues according to claim 1 are characterized in that: after the step S5, the step S6 of treating wastewater specifically includes:
step a, pumping the supernatant in the intermediate tank in the step S3 into a wastewater tank, and pumping the filtrate in the step S4 into the wastewater tank to obtain a waste liquid mixture;
b, stirring and mixing the waste liquid mixture in the waste water tank in the step a;
c, pumping the waste liquid mixture stirred and mixed in the step b into a waste water storage tank;
and d, pumping the waste liquid mixture in the waste water storage tank in the step c into a rectifying tower for rectifying again so as to rectify and recover the DMF in the waste liquid mixture.
3. The process and the equipment for recycling the synthetic leather rectification residues according to the claim 1 or 2, which are characterized in that: the crusher in the step S5 comprises a frame (1), wherein a crusher body (11) is mounted on the frame (1), and a pre-crushing mechanism (2) is connected to the crusher body (11).
4. The process and the equipment for recycling the synthetic leather rectification residues according to claim 3 are characterized in that: pre-crushing mechanism (2) are including pre-crushing bucket (21), pre-crushing bucket (21) with rubbing crusher body (11) are linked together, first screw rod (23) and second screw rod (24) are installed to pre-crushing bucket (21) internal rotation, just first screw rod (23) with screw thread precession opposite direction on second screw rod (24), first screw rod (23) with second screw rod (24) form the crushing mouth to the filter cake, pre-crushing bucket (21) one side still install in frame (1) and be used for the drive first screw rod (23) with second screw rod (24) pivoted first actuating mechanism (5) in opposite directions.
5. The process and the equipment for recycling the synthetic leather rectification residues according to claim 4 are characterized in that: the first driving mechanism (5) comprises a first driving motor (51) fixedly mounted on the rack (1), a first bevel gear (52) is fixedly sleeved and mounted on a rotating shaft of the first driving motor (51), a transmission piece (6) is further fixedly mounted on the rack (1) between the first driving motor (51) and the pre-crushing barrel (21), the transmission piece (6) comprises a shell (61) fixedly mounted on the rack (1), a first driving rod (62) and a second driving rod (63) are respectively rotatably mounted on a group of two opposite side walls of the shell (61), a second bevel gear (64) is rotatably sleeved and mounted on the first driving rod (62), the first bevel gear (52) penetrates through the shell (61) and is meshed with the second bevel gear (64), a plurality of mounting frames (65) are circumferentially mounted on the side wall of the second bevel gear (64) close to one side of the second driving rod (63), it is a plurality of all rotate on the lateral wall that mounting bracket (65) are close to one side each other and install installation pole (66), it is a plurality of all fixed socket joint installs third bevel gear (67) on installation pole (66), just first actuating lever (62) with all fixed socket joint installs a fourth bevel gear (68) on the one end that second actuating lever (63) are close to each other, fourth bevel gear (68) with third bevel gear (67) meshing.
6. The process and the equipment for recycling the synthetic leather rectification residues according to claim 5 are characterized in that: the pre-crushing barrel (21) is further provided with a feed hopper (25), the feed hopper (25) is communicated with the pre-crushing barrel (21), one ends, far away from the crusher body (11), of the first screw (23) and the second screw (24) penetrate through the pre-crushing barrel (21), the first screw (23) outside the pre-crushing barrel (21) is fixedly sleeved with a first transmission worm gear (41), and the second screw (24) outside the pre-crushing barrel (21) is fixedly sleeved with a second transmission worm gear (42); first actuating lever (62) with the one end that second actuating lever (63) kept away from each other all runs through casing (61), just outside casing (61) first actuating lever (62) are gone up the key joint and are installed first transmission worm (69), first transmission worm (69) with first transmission worm wheel (41) meshing, outside casing (61) second actuating lever (63) are gone up the key joint and are installed second transmission worm (610), second transmission worm (610) with second transmission worm wheel (42) meshing.
7. The process and the equipment for recycling the synthetic leather rectification residues according to claim 6 are characterized in that: one ends of the first screw rod (23) and the second screw rod (24) far away from the first driving motor (51) are connected with the inner side wall of the pre-crushing barrel (21) through a rotary connecting piece (3), the rotary connecting piece (3) comprises a first connecting block (31) fixedly arranged on the first screw rod (23) and the second screw rod (24), one end of the first connecting block (31) far away from the first screw rod (23) or the second screw rod (24) is provided with an accommodating groove (32), a second connecting block (33) which can sink into the accommodating groove (32) is fixedly arranged on the outer side wall of the pulverizer body (11), a plurality of roller grooves (34) are circumferentially arranged on the circumferential side wall of the second connecting block (33), the roller groove (34) is internally provided with a rotating roller (35) in a rotating way, and the rotating roller (35) is connected with the inner side wall of the accommodating groove (32) in a rolling way.
8. The process and the equipment for recycling the synthetic leather rectification residues according to claim 7 are characterized in that: still install primary crushing device (7) on feeder hopper (25), primary crushing device (7) rotate including installing first primary crushing roller (71) and second primary crushing roller (72) in feeder hopper (25), be provided with first stirring piece (73) along length direction circumference on first primary crushing roller (71), then be provided with second stirring piece (74) along length direction circumference on second primary crushing roller (72), first stirring piece (73) with second stirring piece (74) sets up in a staggered manner, and adjacent first stirring piece (73) and second stirring piece (74) form the primary opening to the filter cake.
9. The process and the equipment for recycling the synthetic leather rectification residues according to claim 8 are characterized in that: and the side walls of the first stirring block (73) and the second stirring block (74) facing to one side of the rotation direction are fixedly provided with feeding blocks (75) for dragging filter cakes.
10. The process and the equipment for recycling the synthetic leather rectification residues according to claim 9 are characterized in that: still install on frame (1) and be used for driving primary crushing driving piece (8) of primary crushing device (7), primary crushing driving piece (8) is including filling up platform (81), fill up platform (81) fixed mounting in feeder hopper (25) one side in frame (1), just fill up fixed mounting on platform (81) and have primary crushing driving motor (82), key joint installs primary crushing worm (83) in the pivot of primary crushing driving motor (82), the other end of primary crushing worm (83) then rotates with the first supporting shoe of fixed mounting on filling up platform (81) to be connected, primary crushing worm (83) both sides fill up platform (81) go up respectively fixed mounting have a second supporting shoe (85), two rotate on second supporting shoe (85) and install transfer line (86), fixed cup joint installs on the transfer line and with primary crushing worm (83) meshed primary crushing worm wheel (87), both ends of the transmission rod (86) are fixedly sleeved with a primary crushing transmission gear (88); and the feeder hopper (25) is all run through to the one end of first primary crushing roller (71) and second primary crushing roller (72), and all fixed cup joints on first primary crushing roller (71) outside feeder hopper (25) and second primary crushing roller (72) and install driven plate (89), and equal circumference is installed driven ring gear (810) on two driven plates (89) are close to the lateral wall on primary crushing drive gear (88) one side, and driven ring gear (810) and primary crushing drive gear (88) meshing.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774143A (en) * | 2020-06-25 | 2020-10-16 | 李宁军 | Solid waste treatment system |
| CN112058378A (en) * | 2020-08-24 | 2020-12-11 | 岳西县徽记农业开发有限公司 | Snakegourd peel juice microwave membrane separation and extraction equipment |
| CN114260290A (en) * | 2021-12-09 | 2022-04-01 | 安徽科技学院 | Rectification residue is handled and is purified integral type processing apparatus with broken bucket of high efficiency |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384172A (en) * | 2014-10-25 | 2015-03-04 | 陈列鑫 | Disposal method for rectification residues in production of synthetic leather |
| CN105772194A (en) * | 2014-12-22 | 2016-07-20 | 天津市宝坻区坤宇玉米芯有限公司 | Corncob crushing device |
-
2019
- 2019-12-04 CN CN201911228575.8A patent/CN111001647B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384172A (en) * | 2014-10-25 | 2015-03-04 | 陈列鑫 | Disposal method for rectification residues in production of synthetic leather |
| CN105772194A (en) * | 2014-12-22 | 2016-07-20 | 天津市宝坻区坤宇玉米芯有限公司 | Corncob crushing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774143A (en) * | 2020-06-25 | 2020-10-16 | 李宁军 | Solid waste treatment system |
| CN112058378A (en) * | 2020-08-24 | 2020-12-11 | 岳西县徽记农业开发有限公司 | Snakegourd peel juice microwave membrane separation and extraction equipment |
| CN114260290A (en) * | 2021-12-09 | 2022-04-01 | 安徽科技学院 | Rectification residue is handled and is purified integral type processing apparatus with broken bucket of high efficiency |
| CN114260290B (en) * | 2021-12-09 | 2023-10-13 | 安徽科技学院 | Rectification residue handles with broken bucket of high efficiency and purifies integral type processing apparatus |
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