CN204134567U - A kind of PU synthetic leather solid waste regeneration application system - Google Patents
A kind of PU synthetic leather solid waste regeneration application system Download PDFInfo
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- CN204134567U CN204134567U CN201420556968.8U CN201420556968U CN204134567U CN 204134567 U CN204134567 U CN 204134567U CN 201420556968 U CN201420556968 U CN 201420556968U CN 204134567 U CN204134567 U CN 204134567U
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Abstract
The utility model discloses a kind of PU synthetic leather solid waste regeneration application system, it is characterized in that it comprises, industrial dust collector; Agitating device divides three grades of stirrings; The import of I and II agitating device is connected with I and II DMF feed pipe respectively; The import of three grades of agitating devices is connected with water pipe; Each agitating device is provided with mixed export; Centrifugal device divides three grades of centrifugations; The import of centrifugal device at different levels is connected with the mixed export of upper level agitating device respectively; The liquid-phase outlet of first-stage centrifugal device is connected with the import of wet laid furnishes tank; The liquid-phase outlet of two-stage centrifugal device is connected with one-level agitating device charging aperture by liquid pump; The liquid-phase outlet of three grades of centrifugal devices is connected with the import in transfer pond; The solid-phase outlet of I and II centrifugal device accesses the import of next stage agitating device respectively; Three grades of centrifugal device solid-phase outlet are directly discharged.The utility model decreases and reduces production cost, and the conversion of solid waste powder reduces pollutes.
Description
Technical field
The utility model belongs to synthetic leather production equipment technical field, relate to a kind of PU synthetic leather production equipment of solid waste regeneration, in particular to one in PU synthetic leather production process, the PU synthetic leather solid waste regeneration application system that the solid waste regenerating produced after making full use of mill skin utilizes.
Background technology
Wet process technique is the main production in PU synthetic leather production process, is the basic product of all PU synthetic leather products by the product of wet production, i.e. semi-finished product.Become the process that final finished also needs through the later stage, and post-processed mainly comprises the techniques such as mill skin, printing, embossing.The reason of mill skin is superficial layer of pruning, and makes foaming layer outside exposed, serves surface ventilative, smooth effect.
Therefore, a large amount of polyurethane solid waste powder that can produce in mill skin treatment process.And now the processing method of this solid waste powder is generally adopted: burning method, landfill method.Burning method can produce a large amount of black smokes and fly away in atmosphere, affects air quality; The time of landfill method natural decomposition in soil can be longer.Both by serious environment pollution.
Due to by the lower solid waste powder of decorticating mill mill, a part ofly there is no different from the component staying leather layer, be all polyurethane material, this part polyurethane material can account in powder between 40%-55%, therefore there is the value of recycling.Not yet find to occur PU synthetic leather solid waste regeneration application system in prior art.
Utility model content
The purpose of this utility model will provide a kind of PU synthetic leather solid waste regeneration application system exactly.The solid waste regenerating that produces in PU synthetic leather production process is utilized, thus realizes without above-mentioned solid waste discharge in PU synthetic leather production process, be i.e. energy-conservation but also environmental protection.
In normal wet process technique, slurry figure in base cloth, by infiltration, makes slurry be full of the whole layering of base cloth by production line.By water, DMF and water are replaced, and final polyurethane is distributed in monoblock base cloth, makes original base cloth become leather, grind skin then grind off top layer, make product surface evenly, breathe freely.So the composition of decorticating mill mill lower part follows the composition of finished product to be the same, the utility model processes mill skin powder.
Technical solutions of the utility model:
A kind of PU synthetic leather solid waste regeneration application system, it comprises,
Industrial dust collector, industrial dust collector will grind skin powder collection to agitating device;
Agitating device, point three grades of stirrings; The import of one-level agitating device is connected with one-level DMF feed pipe and secondary DMF feed pipe respectively with the import of secondary agitating device, and DMF enters one-level agitating device and secondary agitating device respectively by feed pipe; The import of three grades of agitating devices is connected with water pipe; Each agitating device is provided with mixed export;
Centrifugal device, point three grades of centrifugations; The import of centrifugal device at different levels is connected with the mixed export of upper level agitating device respectively, and the outlet of centrifugal device at different levels divides liquid-phase outlet and solid-phase outlet; The liquid-phase outlet of first-stage centrifugal device is connected with the import of wet laid furnishes tank; The liquid-phase outlet of two-stage centrifugal device is connected with one-level agitating device charging aperture by liquid pump; The liquid-phase outlet of three grades of centrifugal devices is connected with the import in transfer pond; The solid-phase outlet of first-stage centrifugal device and two-stage centrifugal device accesses the import of next stage agitating device respectively; Three grades of centrifugal device solid-phase outlet are directly discharged; And transfer pond 10.
Preferred:
Described transfer pond is connected with water pipe by a liquid pump, the water in transfer pond is sent into the import of three grades of agitating devices or the water in transfer pond is sent into DMF waste liquid tank.
Described one-level agitating device is stirred tank, and secondary agitating device comprises for one-level dispersion machine and one-level stainless steel cask; Three grades of agitating devices comprise secondary breakup machine and secondary stainless steel cask.
Described three grades of centrifugal devices are divided into first-stage centrifugal machine, two-stage centrifugal machine, three grades of centrifuges, and the aperture of the screen pack in each centrifuge is not more than 80 orders.
The utility model beneficial effect.
1, the conversion of solid waste powder, the production model of circulation, reduces the generation of solid waste, makes enterprise's emissions reduction, reduces and pollutes, for contribution has been made in the sustainable development of protection of the environment and whole industry.
2, by above test, the solid waste powder that China produces for 1 year is greatly about more than 120000 tons (annual effectively production calculates for 300 days), solid waste powder successful conversion per ton is to bring the profit of 5000 yuan after product, therefore after all recycling, not only every year for enterprise can bring the economic benefit of more than 600,000,000 yuan, and be that society produces obvious environmental benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
In figure: stirred tank 1, first-stage centrifugal machine 2, liquid-phase outlet 2-1, solid-phase outlet 2-2, one-level dispersion machine 3, one-level stainless steel cask 4, two-stage centrifugal machine 5, secondary breakup machine 6, secondary stainless steel cask 7, three grades of centrifuges 8, water pump 9, transfer pond 10, wet laid furnishes tank 11, one-level DMF feed pipe 12-1, secondary DMF feed pipe 12-2.
Detailed description of the invention
The utility model specifically can be implemented by above-mentioned utility model technical scheme, by under address embodiment and be described further, but scope of the present utility model is not limited to following embodiment.
Embodiment 1
A kind of PU synthetic leather solid waste regeneration application system; Comprise:
Industrial dust collector, industrial dust collector will grind skin powder collection to stirred tank 1;
Agitating device, point three grades of stirrings; One-level agitating device is stirred tank 1, and secondary agitating device comprises for one-level dispersion machine 3 and one-level stainless steel cask 4; Three grades of agitating devices comprise secondary breakup machine 6 and secondary stainless steel cask 7, stirred tank 1 is connected with one-level DMF feed pipe 12-1 and secondary DMF feed pipe 12-2 respectively with the import of one-level stainless steel cask 4, and DMF enters in stirred tank 1 and one-level stainless steel cask 4 by feed pipe respectively; The import of secondary stainless steel cask 7 is connected with water pipe; Each agitating device is provided with mixed export.
Centrifugal device, point first-stage centrifugal machine 2, two-stage centrifugal machine 5, three grades of centrifuges 8; The import of centrifugal device at different levels accesses the mixed export of higher level's agitating device respectively; The outlet of centrifugal device at different levels divides liquid-phase outlet and solid-phase outlet; The liquid-phase outlet 2-1 of first-stage centrifugal machine 2 is connected with the import of wet laid furnishes tank 11; The liquid-phase outlet of two-stage centrifugal machine 5 is connected with stirred tank 1 charging aperture by water pump; The liquid-phase outlet of three grades of centrifuges 8 is connected with the import in transfer pond 10;
The solid-phase outlet of first-stage centrifugal machine 2 and two-stage centrifugal machine 5 accesses the import of one-level stainless steel cask 4, secondary stainless steel cask 7 respectively; The solid-phase outlet of three grades of centrifuges 8 is directly discharged;
Water in transfer pond 10 is sent into the import of secondary stainless steel cask 7 by transfer pond 10 by a water pump 9; By another water pump, the water in transfer pond 10 is sent into DMF waste liquid tank 13.
Operating process:
1, in the stirred tank 1 first using industrial dust collector (above giving vent to anger, lower charging) to be directly extracted into from mill skin dust room by mill skin powder.Turn off dust catcher, after equipment is static, reads the weight of the Weighing module display on stirred tank 1.Added in DMF(running by one-level DMF feed pipe 12-1 and also can add part DMF from the liquid phase of two-stage centrifugal machine 5), open stirred tank 1, mixture is stirred 30 minutes under mixer is with the speed of 1100 revs/min; Observed by visor, mill skin powder fully mixes in DMF.
2, install 80 object filtering mesh bags in first-stage centrifugal machine 2, open the power supply of first-stage centrifugal machine 2, slowly accelerate, to maximum centrifugal speed, now the drum speed of first-stage centrifugal machine 2 reaches 1050 revs/min.
Then open stirred tank 1 bottom valve, by the mixed serum mixed, put slowly to first-stage centrifugal machine 2 while stirring.
Mixed slurry is separated into liquid phase and solid phase after entering centrifuge rapidly, and respectively from liquid-phase outlet 2-1 and solid-phase outlet 2-2 outflow of centrifuge, liquid phase has then flow in the wet laid furnishes tank 11 holding wet process furnish and recycled.Solid phase, then with gravity, is fallen in one-level stainless steel cask 4.
3, in one-level stainless steel cask 4, DMF is added by secondary DMF feed pipe 12-2 again.After using one-level dispersion machine 3 to stir, put into the two-stage centrifugal machine 5 being installed with 80 order screen packs and isolate solid liquid phase, now obtain liquid phase and used as DMF raw material by liquid pump feeding stirred tank 1; Solid phase puts into secondary stainless steel cask 7.
4, from transfer pond 10, secondary stainless steel cask 7 is added water to water pump 9; Open secondary breakup machine 6, stir 2 minutes, the DMF in solid phase is dissolved in water completely.Then, stirring while put slowly to, put into the three grades of centrifuges 8 being installed with 80 order screen packs, centrifugation goes out solid phase and liquid phase.Liquid phase is then non-metering flows back to transfer pond 10; Or solid phase is recycling can drag landfill or burning away.
It should be noted: the liquid in transfer pond uses Abbe refractometer to observe the concentration of DMF, when concentration is less than 20% by 9 dozens, water pump in secondary stainless steel cask 7, as the water circulation use in washing; Beat to DMF waste liquid tank 13 when concentration is greater than 20% by pump, reclaimed by DMF recovery tower.
Solid phase is now the cloth wool fibre after washing, and remaining cloth wool fibre more original mill skin powder is compared, and its composition is remaining cloth wool fibre only.And cloth wool fibre moiety by weight reduces to the soil that 1/2. original landfill uses reduces greatly.And to reduce in original powder polyurethane and pigment to the pollution in soil;
Quality due to original polyurethane has accounted for 45-50% of mill skin powder, therefore, compared with original conventional burning disposal, decreases the oxygen that polyurethane portion burning consumes.
No matter summary, be landfill or burning, on original basis, all greatly reduce the pollution to environment.
Claims (4)
1. a PU synthetic leather solid waste regeneration application system, is characterized in that it comprises,
Industrial dust collector, industrial dust collector will grind skin powder collection to agitating device;
Agitating device, point three grades of stirrings; The import of one-level agitating device is connected with one-level DMF feed pipe (12-1) and secondary DMF feed pipe (12-2) respectively with the import of secondary agitating device, and DMF enters one-level agitating device and secondary agitating device respectively by feed pipe; The import of three grades of agitating devices is connected with water pipe; Each agitating device is provided with mixed export;
Centrifugal device, point three grades of centrifugations; The import of centrifugal device at different levels is connected with the mixed export of upper level agitating device respectively, and the outlet of centrifugal device at different levels divides liquid-phase outlet (2-1) and solid-phase outlet (2-2); The liquid-phase outlet (2-1) of first-stage centrifugal device is connected with the import of wet laid furnishes tank (11); The liquid-phase outlet of two-stage centrifugal device is connected with one-level agitating device charging aperture by liquid pump; The liquid-phase outlet of three grades of centrifugal devices is connected with the import of transfer pond (10); The solid-phase outlet of first-stage centrifugal device and two-stage centrifugal device accesses the import of next stage agitating device respectively; Three grades of centrifugal device solid-phase outlet are directly discharged;
And transfer pond (10).
2. a kind of PU synthetic leather solid waste regeneration application system according to claim 1, is characterized in that;
Described transfer pond (10) is connected with water pipe by a liquid pump, the water in transfer pond (10) is sent into the import of three grades of agitating devices or the water in transfer pond (10) is sent into DMF waste liquid tank (13).
3. a kind of PU synthetic leather solid waste regeneration application system according to claim 1, is characterized in that;
Described one-level agitating device is stirred tank (1), and secondary agitating device comprises for one-level dispersion machine (3) and one-level stainless steel cask (4); Three grades of agitating devices comprise secondary breakup machine (6) and secondary stainless steel cask (7).
4. a kind of PU synthetic leather solid waste regeneration application system according to claim 1, is characterized in that;
Described three grades of centrifugal devices are divided into first-stage centrifugal machine (2), two-stage centrifugal machine (5), and three grades of centrifuges (8), the aperture of the screen pack in each centrifuge is not more than 80 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556968.8U CN204134567U (en) | 2014-09-26 | 2014-09-26 | A kind of PU synthetic leather solid waste regeneration application system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556968.8U CN204134567U (en) | 2014-09-26 | 2014-09-26 | A kind of PU synthetic leather solid waste regeneration application system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204134567U true CN204134567U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420556968.8U Expired - Fee Related CN204134567U (en) | 2014-09-26 | 2014-09-26 | A kind of PU synthetic leather solid waste regeneration application system |
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| Country | Link |
|---|---|
| CN (1) | CN204134567U (en) |
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2014
- 2014-09-26 CN CN201420556968.8U patent/CN204134567U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20200926 |