CN103640111A - Cleaning process and production line of PET (polyethylene terephthalate) bottle sheets - Google Patents
Cleaning process and production line of PET (polyethylene terephthalate) bottle sheets Download PDFInfo
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- CN103640111A CN103640111A CN201310631883.1A CN201310631883A CN103640111A CN 103640111 A CN103640111 A CN 103640111A CN 201310631883 A CN201310631883 A CN 201310631883A CN 103640111 A CN103640111 A CN 103640111A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention discloses a cleaning process and a production line of PET (polyethylene terephthalate) bottle sheets. The cleaning process comprises the following steps of unpacking PET bottles, carrying out primary impurity removing by utilizing a whole bottle pre-cleaning device, removing labels from the PET bottles by utilizing a label removing device, removing heterochromous bottles and the bottles which are not made of PET materials by utilizing a sorting device, carrying out manual sorting by using a manual sorting platform, crushing by utilizing a crushing device, carrying out thermal cleaning by utilizing a thermal boiling boiler, neutralizing by utilizing a neutralizing tank, rinsing by utilizing a rinsing device, carrying out spin drying, drying by utilizing a drying cylinder, mixing, weighing and packaging, thus finishing the cleaning. According to the cleaning process, in full consideration of problem that too many impurities and pollutants exist in recycled PET bottles, various devices in a production process are adaptively transformed to be fit for the cleaning of the PET bottle sheets; the bottle sheets produced by utilizing the cleaning process and the production line can completely meet subsequent production and processing requirements, and the quality of the bottle sheets is improved; by utilizing a steam recycling system and the continuous spin-drying and drying operations, the energy utilization ratio can be greatly improved, the subsequent production and processing costs are lowered, and the cleaning process and the production line have wide social generalization significances.
Description
Technical field
The present invention relates to PET bottle sheet and clean field, relate in particular a kind of PET bottle sheet cleaning and production line thereof.
Background technology
As everyone knows, in recent years, be accompanied by the surge of population in the world, the consumption figure of various plastic bottles also significantly increases.This is wherein due to the stable chemical nature of PET, good, and physical index is good and cause the consumption figure sharp increase of PET bottle global range in.In the face of sharply changeable waste PET bottle, reclaim waste PET bottle industry and require urgently the industrialization, scale and the mechanization that advance waste PET bottle to reclaim.Owing to forming the bottle of bottle, also having the material of bottle cap different from the label sticking on body---bottle is PET normally, and label is to adopt the materials such as PVC, PE, PP to make, so caused the increasing of the difficulty in removal process.Requirement in order to ensure purity and the quality of the PET in salvage material, must be separated the material of PET and non-PET material, has also emerged now a collection of patent documentation targetedly both at home and abroad.
Such as Chinese patent application, 200810066055.7 < < PET returnable bottle sheet high-cleanness, high cleaning treatment system > > disclose a kind of PET returnable bottle sheet high-cleanness, high cleaning treatment system, wherein also waste water is reclaimed and recycled, but does not clearly stipulate in its dewaterer aperture adopting for the dehydration of rear road, in addition also do not propose will be dried afterwards a bottle sheet mix effective minimizing batch and batch between difference, especially for temperature and the pH value of whole bottle prerinse water, the pH value of crumbling method and water etc. does not provide concrete scheme.
And for example Chinese patent application 201210454069.2 < < automation waste plastic bottle clean reclaiming process > > has highlighted the thermophilic digestion sterilization for each procedure, but the water for cleaning temperature especially adopting for the important process in each procedure, pH value, whether recycle to reduce energy consumption, reduce costs, dehydrate after technique and combination drying bottle sheet with reduce batch and batch between difference etc. clear and definite scheme is not proposed.
For another example Chinese patent application 201220597213.3 < < automation waste plastic bottle clean recovery unit > > discloses a kind of waste plastic bottle clean recovery unit, the water for cleaning temperature especially adopting for the important process in each procedure, pH value, whether recycle to reduce energy consumption, reduce costs, dehydrate after technique and combination drying bottle sheet with reduce batch and batch between difference etc. clear and definite scheme is not also proposed.
Summary of the invention
Main purpose of the present invention is to provide a kind of PET bottle sheet cleaning, it has can meet the production and processing requirement of rear road, Improving The Quality of Products, the energy-saving and cost-reducing and feature that reduces production and processing cost, and solved existing PET returnable bottle impurity simultaneously, pollutant sources is extensively difficult to the problem of removing.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of PET bottle sheet cleaning, wherein, PET bottle is removed heterochromatic bottle and non-PET material bottle, the manual sorting of artificial separation platform through opening bag, the preliminary removal of impurities of whole bottle precleaning unit, the de-mark of de-device for mark, sorting unit, breaker is broken, hot saucepan heat is washed, neutralizing tank neutralization, rinsing device rinsing, drying, drying cylinder are dried, mix, meter is heavy and pack after complete cleaning.
Further, what described de-device for mark adopted is the de-mark of wet type band water, the water adopting be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9.
Further, the water that the preliminary removal of impurities of described whole bottle precleaning unit adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9, the whole bottle prerinse time is 10-15min.
Further, the selected transport tape speed of described sorting unit is 15-20m/min, and the jetting pressure of air-blast atomizer is 0.3-0.5mpa.
Further, what described breaker fragmentation adopted is that wet type adds water fragmentation, and added is to come from the alkaline water that the PH after whole bottle precleaning unit is used is 8-9.
Further, to wash adopted be that after adding cleaning agent, pH value is 11-12, by vapor (steam) temperature adjustment, controls the alkaline water for 95-99 ℃ to described hot saucepan heat.
Further, described hot saucepan heat wash used steam be come from when rear road drying cylinder is dried, use after and through being adjusted into the steam of 0.15-0.2mpa.
Further, described drying is that the dewaterer that is 3-5mm by aperture completes, and it is to adopt the steam that steam pressure is 0.3-0.4mpa to complete that drying cylinder is dried.
Further, described mixing is to adopt the rotary drum without heating jacket to complete.
Another object of the present invention is to provide a kind of PET bottle sheet cleaning product line, wherein, comprise opening of setting gradually according to production line packing put, precleaning unit, de-device for mark, automatic sorting device, artificial separation device, breaker, hot washing device, neutralising arrangement, rinsing device, spin-drying device, drying unit, mixing arrangement and the heavy packing device of meter; This PET bottle sheet cleaning product line also comprises the first pipeline, the second pipeline, the 3rd pipeline and the 4th pipeline, the delivery port of this hot washing device is connected with the water inlet of precleaning unit by the first pipeline, the delivery port of this hot washing device is connected with the water inlet of de-device for mark by the second pipeline, the delivery port of this precleaning unit is connected with the water inlet of breaker by the 3rd pipeline, and the steam (vapor) outlet of this drying unit is connected with the steam inlet of hot washing device by the 4th pipeline.
Adopt after said structure, a kind of PET bottle sheet cleaning and the production line thereof that the present invention relates to, owing to fully taking into account the problems such as the impurity, the pollutant that exist in PET returnable bottle are many, the various devices in production process have been carried out to transformation adaptively, make it the cleaning of the most applicable PET bottle sheet.Road production and processing requirement after the bottle sheet of producing by PET bottle sheet cleaning of the present invention and production line can meet completely, Improving The Quality of Products; Utilize steam recycling system and dry oven dry continued operation greatly to promote energy utilization rate, production and processing cost in road after reducing, has society generalization meaning widely.
At least there is following beneficial effect in the present invention:
One, the present invention is by adjusting whole bottle prerinse technique, by conventional rinse water change into the temperature coming from after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9, can effectively utilize the alkaline water in rear road like this, be conducive on the one hand using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.
Two, the present invention is by adjusting de-mark technique, adopt the de-mark of wet type can effectively improve de-mark efficiency to 95% above and reduce the wearing and tearing of equipment, use comes from temperature after the hot saucepan heat in rear road is washed, and to be 60-80 ℃ be adjusted into through dilution the alkaline water that PH is 8-9, be conducive on the one hand using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively to remove glue that body adheres to further to improve de-mark effect on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, extended the service life of equipment.
Three, the present invention is optimized sorting process further, and while finding transport tape speed to be controlled at 15-20m/min through constantly testing, the efficiency of separation is best, and the leakage of variegated bottle and non-PET material bottle selects probability minimum, and has taken into account production efficiency simultaneously.When the jetting pressure of air-blast atomizer is 0.3-0.5mpa, the efficiency of separation is best, and the leakage of variegated bottle and non-PET material bottle selects probability minimum, and qualified PET bottle to blow damage ratio minimum by mistake, the while has also been taken into account energy consumption.
Four, the present invention adjusts crushing process further, adopt wet type crushing energy effectively to improve broken bottle chip size efficiency to 96% above and reduce the wearing and tearing of equipment, use comes from temperature after the hot saucepan heat in rear road is washed, and to be 60-80 ℃ be adjusted into temperature for 30-40 ℃ through dilution, PH is the alkaline water of 8-9, be conducive on the one hand using water wisely, temperature is that the alkaline water of 30-40 ℃ is conducive to effectively remove the impurity that adheres on bottle sheet further to improve de-mark effect on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to disintegrating apparatus when guaranteeing clean decontamination, extended the service life of equipment.
Five, the present invention adjusts hot saucepan hot washing process further, the alkaline water of adopt pH value 11-12, controlling as 95-99 ℃ by vapor (steam) temperature adjustment can farthest promote cleaning performance, and reduce the corrosivity to equipment, extended the service life of equipment.In addition, it is after using while coming from the drying cylinder oven dry of rear road and through being adjusted into the steam of 0.15-0.2mpa that hot saucepan heat is washed used steam, effectively utilizes the heat after Liao Hou road drying cylinder is used, and has saved energy consumption.
Six, the present invention has carried out modification to drying dehydration technique further, through test of many times, find, aperture is that the dewaterer of 4mm can drop to minimum by the moisture content of bottle sheet while dewatering on the one hand, also reduced on the other hand the content of the powder producing due to the collision of bottle sheet in dehydration, reduced production cost and promoted the loss that Liao Hou road adds man-hour.
Seven, the present invention has adopted the technique that drying cylinder is dried further, the moisture content that has further reduced bottle sheet after cleaning can be by finished product moisture control in 0.5% left and right, use the steam of steam pressure position 0.3--0.4mpa also to consider that the rear bottle of cleaning sheet degree of crystallinity is lower simultaneously simultaneously, easily softening adhesion while adopting vapor pressure, cause the problem of caking, in addition, steam after also drying cylinder being used in the present invention is transported to hot saucepan and recycles, farthest utilized the energy, reduced production costs.
Eight, the present invention has increased mixed processes further, a bottle sheet by the rotary drum without heating jacket after to crushing washing mixes, can effectively promote like this bottle sheet after cleaning, drying batch with batch between difference, further promote the quality of road production and processing product afterwards.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention relates to a kind of PET bottle sheet cleaning product line.
In figure:
Open packing and put 1 precleaning unit 2
De-device for mark 3 automatic sorting devices 4
Artificial separation device 5 breakers 6
Hot washing device 7 neutralising arrangements 8
Rinsing device 9 spin-drying devices 10
Count heavy packing device 13 first pipelines 14
The second pipeline 15 the 3rd pipeline 16
The 4th pipeline 17
The specific embodiment
In order further to explain technical scheme of the present invention, below by specific embodiment, the present invention will be described in detail.
As shown in Figure 1, a kind of PET bottle sheet cleaning product line the present invention relates to, comprises opening of setting gradually according to production line packing puts 1, precleaning unit 2, de-device for mark 3, automatic sorting device 4, artificial separation device 5, breaker 6, hot washing device 7, neutralising arrangement 8, rinsing device 9, spin-drying device 10, drying unit 11, mixing arrangement 12 and count heavy packing device 13.
This PET bottle sheet cleaning product line also comprises the first pipeline 14, the second pipeline 15, the 3rd pipeline 16 and the 4th pipeline 17, the delivery port of this hot washing device 7 is connected with the water inlet of precleaning unit 2 by the first pipeline 14, the delivery port of this hot washing device 7 is connected with the water inlet of de-device for mark 3 by the second pipeline 15, the delivery port of this precleaning unit 2 is connected with the water inlet of breaker 6 by the 3rd pipeline 16, and the steam (vapor) outlet of this drying unit 11 is connected with the steam inlet of hot washing device 7 by the 4th pipeline 17.
Embodiment mono-:
A kind of PET bottle sheet cleaning the present invention relates to, PET bottle is removed heterochromatic bottle and non-PET material bottle, the manual sorting of artificial separation platform through opening bag, the preliminary removal of impurities of whole bottle precleaning unit, the de-mark of de-device for mark, sorting unit, breaker is broken, hot saucepan heat is washed, neutralizing tank neutralization, rinsing device rinsing, drying, drying cylinder are dried, mix, meter weighs and packing is made.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
More specifically, in the present embodiment, the concrete steps of this PET bottle sheet cleaning are:
1. open bag: PET bottle brick iron wire is cut off, put into bale opener, make it at utmost reach the separated of single bottle and bottle.
2. prerinse: the PET bottle of opening after bag is sent in prerinse tank, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water, the whole bottle prerinse time is 15min.
3. de-mark: the PET bottle after prerinse is sent into de-device for mark and is with the de-mark of water, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
4. automatic sorting: the PET bottle after de-mark is sent into automatic separation equipment, and adjusting transport tape transporting velocity is 15m/min, and the jetting pressure of air-blast atomizer is 0.5mpa.
5. artificial separation: the PET bottle after automatic sorting is sent into artificial separation platform and carry out sorting manually.
6. broken: the PET bottle after automatic sorting and artificial separation is sent into disintegrating machine, and to carry out wet type band water broken, use be temperature after washing from the hot saucepan heat in rear road be 40 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
7. heat is washed: the PET bottle sheet after fragmentation is sent into hot saucepan and carry out heat and wash, it is that to add the pH value of specific cleaning agent to be 11, by vapor (steam) temperature adjustment, to control be the alkaline water of 95 ℃ that heat is washed adopted, the heat time of washing be 30 minutes hot saucepan heat wash used steam be come from when rear road drying cylinder is dried, use after and through being adjusted into the steam of 0.15mpa.
8. neutralization: the bottle sheet after heat is washed is conveyed into neutralizing tank and carries out acidity neutralization.
9. rinsing: the bottle sheet after neutralization is conveyed into rinsing bath and carries out rinsing and utilize hydrometer method to sub-elect a small amount of non-PET impurity that may contain.
10. dry: it is that the drier of 4mm carries out drying dehydration that the PET bottle sheet after rinsing is conveyed into aperture.
The present embodiment also provides a kind of PET bottle sheet cleaning product line, and by opening, packing is put, precleaning unit, off loading are put mark for it, automatic sorting device, artificial separation device, breaker, hot washing device, neutralising arrangement, rinsing device, drying drying unit, mixing arrangement, the heavy packing device of meter form.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
Embodiment bis-:
A kind of PET bottle sheet cleaning the present invention relates to, PET bottle is removed heterochromatic bottle and non-PET material bottle, the manual sorting of artificial separation platform through opening bag, the preliminary removal of impurities of whole bottle precleaning unit, the de-mark of de-device for mark, sorting unit, breaker is broken, hot saucepan heat is washed, neutralizing tank neutralization, rinsing device rinsing, drying, drying cylinder are dried, mix, meter is heavy, pack and make.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
More specifically, in the present embodiment, the concrete steps of this PET bottle sheet cleaning are:
1. open bag: PET bottle brick iron wire is cut off, put into bale opener, make it at utmost reach the separated of single bottle and bottle.
2. prerinse: the PET bottle of opening after bag is sent in prerinse tank, use be temperature after washing from the hot saucepan heat in rear road be 60 ℃ through dilution, to be adjusted into pH value be 9 alkaline water, the whole bottle prerinse time is 10min.
3. de-mark: the PET bottle after prerinse is sent into de-device for mark and is with the de-mark of water, use be temperature after washing from the hot saucepan heat in rear road be 60 ℃ through dilution, to be adjusted into pH value be 9 alkaline water.
4. automatic sorting: the PET bottle after de-mark is sent into automatic separation equipment, and adjusting transport tape transporting velocity is 15m/min, and the jetting pressure of air-blast atomizer is 0.5mpa.
5. artificial separation: the PET bottle after automatic sorting is sent into artificial separation platform and carry out sorting manually.
6. broken: the PET bottle after automatic sorting and artificial separation is sent into disintegrating machine, and to carry out wet type band water broken, use be temperature after washing from the hot saucepan heat in rear road be 40 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
7. heat is washed: the PET bottle sheet after fragmentation is sent into hot saucepan and carry out heat and wash, it is that to add the pH value of specific cleaning agent to be 11, by vapor (steam) temperature adjustment, to control be the alkaline water of 95 ℃ that heat is washed adopted, the heat time of washing be 30 minutes hot saucepan heat wash used steam be come from when rear road drying cylinder is dried, use after and through being adjusted into the steam of 0.15mpa.
8. neutralization: the bottle sheet after heat is washed is conveyed into neutralizing tank and carries out acidity neutralization.
9. rinsing: the bottle sheet after neutralization is conveyed into rinsing bath and carries out rinsing and utilize hydrometer method to sub-elect a small amount of non-PET impurity that may contain.
10. dry: it is that the drier of 4mm carries out drying dehydration that the PET bottle sheet after rinsing is conveyed into aperture.
meter is packing heavily: by the bottle sheet mixing, weighing scale is heavy in accordance with regulations, packing installs warehouse-in.
The present embodiment also provides a kind of PET bottle sheet cleaning product line, and by opening, packing is put, precleaning unit, off loading are put mark for it, automatic sorting device, artificial separation device, breaker, hot washing device, neutralising arrangement, rinsing device, drying drying unit, mixing arrangement, the heavy packing device of meter form.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
Embodiment tri-:
A kind of PET bottle sheet cleaning the present invention relates to, PET bottle is removed heterochromatic bottle and non-PET material bottle, the manual sorting of artificial separation platform through opening bag, the preliminary removal of impurities of whole bottle precleaning unit, the de-mark of de-device for mark, sorting unit, breaker is broken, hot saucepan heat is washed, neutralizing tank neutralization, rinsing device rinsing, drying, drying cylinder are dried, mix, meter is heavy, pack and make.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
More specifically, in the present embodiment, the concrete steps of this PET bottle sheet cleaning are:
1. open bag: PET bottle brick iron wire is cut off, put into bale opener, make it at utmost reach the separated of single bottle and bottle.
2. prerinse: the PET bottle of opening after bag is sent in prerinse tank, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water, the whole bottle prerinse time is 15min.
3. de-mark: the PET bottle after prerinse is sent into de-device for mark and is with the de-mark of water, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
4. automatic sorting: the PET bottle after de-mark is sent into automatic separation equipment, and adjusting transport tape transporting velocity is 20m/min, and the jetting pressure of air-blast atomizer is 0.3mpa.
5. artificial separation: the PET bottle after automatic sorting is sent into artificial separation platform and carry out sorting manually.
6. broken: the PET bottle after automatic sorting and artificial separation is sent into disintegrating machine, and to carry out wet type band water broken, use be temperature after washing from the hot saucepan heat in rear road be 40 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
7. heat is washed: the PET bottle sheet after fragmentation is sent into hot saucepan and carry out heat and wash, it is that to add the pH value of specific cleaning agent to be 11, by vapor (steam) temperature adjustment, to control be the alkaline water of 95 ℃ that heat is washed adopted, the heat time of washing be 30 minutes hot saucepan heat wash used steam be come from when rear road drying cylinder is dried, use after and through being adjusted into the steam of 0.15mpa.
8. neutralization: the bottle sheet after heat is washed is conveyed into neutralizing tank and carries out acidity neutralization.
9. rinsing: the bottle sheet after neutralization is conveyed into rinsing bath and carries out rinsing and utilize hydrometer method to sub-elect a small amount of non-PET impurity that may contain.
10. dry: it is that the drier of 4mm carries out drying dehydration that the PET bottle sheet after rinsing is conveyed into aperture.
dry: the PET bottle sheet after drying dehydration is conveyed into drying cylinder and dries, oven dry is to adopt the steam that steam pressure is 0.3mpa to complete.
meter is packing heavily: by the bottle sheet mixing, weighing scale is heavy in accordance with regulations, packing installs warehouse-in.
The present embodiment also provides a kind of PET bottle sheet cleaning product line, and by opening, packing is put, precleaning unit, off loading are put mark for it, automatic sorting device, artificial separation device, breaker, hot washing device, neutralising arrangement, rinsing device, drying drying unit, mixing arrangement, the heavy packing device of meter form.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
Embodiment tetra-:
A kind of PET bottle sheet cleaning the present invention relates to, PET bottle is removed heterochromatic bottle and non-PET material bottle, the manual sorting of artificial separation platform through opening bag, the preliminary removal of impurities of whole bottle precleaning unit, the de-mark of de-device for mark, sorting unit, breaker is broken, hot saucepan heat is washed, neutralizing tank neutralization, rinsing device rinsing, drying, drying cylinder are dried, mix, meter is heavy, pack and make.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
More specifically, in the present embodiment, the concrete steps of this PET bottle sheet cleaning are:
1. open bag: PET bottle brick iron wire is cut off, put into bale opener, make it at utmost reach the separated of single bottle and bottle.
2. prerinse: the PET bottle of opening after bag is sent in prerinse tank, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water, the whole bottle prerinse time is 15min.
3. de-mark: the PET bottle after prerinse is sent into de-device for mark and is with the de-mark of water, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
4. automatic sorting: the PET bottle after de-mark is sent into automatic separation equipment, and adjusting transport tape transporting velocity is 15m/min, and the jetting pressure of air-blast atomizer is 0.5mpa.
5. artificial separation: the PET bottle after automatic sorting is sent into artificial separation platform and carry out sorting manually.
6. broken: the PET bottle after automatic sorting and artificial separation is sent into disintegrating machine, and to carry out wet type band water broken, use be temperature after washing from the hot saucepan heat in rear road be 40 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
7. heat is washed: the PET bottle sheet after fragmentation is sent into hot saucepan and carry out heat and wash, it is that to add the pH value of specific cleaning agent to be 11, by vapor (steam) temperature adjustment, to control be the alkaline water of 97 ℃ that heat is washed adopted, the heat time of washing be 30 minutes hot saucepan heat wash used steam be come from when rear road drying cylinder is dried, use after and through being adjusted into the steam of 0.2mpa.
8. neutralization: the bottle sheet after heat is washed is conveyed into neutralizing tank and carries out acidity neutralization.
9. rinsing: the bottle sheet after neutralization is conveyed into rinsing bath and carries out rinsing and utilize hydrometer method to sub-elect a small amount of non-PET impurity that may contain.
10. dry: it is that the drier of 4mm carries out drying dehydration that the PET bottle sheet after rinsing is conveyed into aperture.
The present embodiment also provides a kind of PET bottle sheet cleaning product line, and by opening, packing is put, precleaning unit, off loading are put mark for it, automatic sorting device, artificial separation device, breaker, hot washing device, neutralising arrangement, rinsing device, drying drying unit, mixing arrangement, the heavy packing device of meter form.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
Embodiment five:
A kind of PET bottle sheet cleaning the present invention relates to, PET bottle is removed heterochromatic bottle and non-PET material bottle, the manual sorting of artificial separation platform through opening bag, the preliminary removal of impurities of whole bottle precleaning unit, the de-mark of de-device for mark, sorting unit, breaker is broken, hot saucepan heat is washed, neutralizing tank neutralization, rinsing device rinsing, drying, drying cylinder are dried, mix, meter is heavy, pack and make.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
More specifically, in the present embodiment, the concrete steps of this PET bottle sheet cleaning are:
1. open bag: PET bottle brick iron wire is cut off, put into bale opener, make it at utmost reach the separated of single bottle and bottle.
2. prerinse: the PET bottle of opening after bag is sent in prerinse tank, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water, the whole bottle prerinse time is 15min.
3. de-mark: the PET bottle after prerinse is sent into de-device for mark and is with the de-mark of water, use be temperature after washing from the hot saucepan heat in rear road be 75 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
4. automatic sorting: the PET bottle after de-mark is sent into automatic separation equipment, and adjusting transport tape transporting velocity is 15m/min, and the jetting pressure of air-blast atomizer is 0.5mpa.
5. artificial separation: the PET bottle after automatic sorting is sent into artificial separation platform and carry out sorting manually.
6. broken: the PET bottle after automatic sorting and artificial separation is sent into disintegrating machine, and to carry out wet type band water broken, use be temperature after washing from the hot saucepan heat in rear road be 40 ℃ through dilution, to be adjusted into pH value be 8 alkaline water.
7. heat is washed: the PET bottle sheet after fragmentation is sent into hot saucepan and carry out heat and wash, it is that to add the pH value of specific cleaning agent to be 11, by vapor (steam) temperature adjustment, to control be the alkaline water of 95 ℃ that heat is washed adopted, the heat time of washing be 30 minutes hot saucepan heat wash used steam be come from when rear road drying cylinder is dried, use after and through being adjusted into the steam of 0.15mpa.
8. neutralization: the bottle sheet after heat is washed is conveyed into neutralizing tank and carries out acidity neutralization.
9. rinsing: the bottle sheet after neutralization is conveyed into rinsing bath and carries out rinsing and utilize hydrometer method to sub-elect a small amount of non-PET impurity that may contain.
10. dry: it is that the drier of 3mm carries out drying dehydration that the PET bottle sheet after rinsing is conveyed into aperture.
The present embodiment also provides a kind of PET bottle sheet cleaning product line, and by opening, packing is put, precleaning unit, off loading are put mark for it, automatic sorting device, artificial separation device, breaker, hot washing device, neutralising arrangement, rinsing device, drying drying unit, mixing arrangement, the heavy packing device of meter form.
It should be noted that, the water that the preliminary removal of impurities of whole bottle precleaning unit relating in the present invention adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9; Selection come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, to be adjusted into PH be that the object of the alkaline water of 8-9 is in order to guarantee using water wisely, temperature is that the alkaline water of 60-80 ℃ is conducive to effectively remove silt, the glue that body adheres on the other hand, in addition the alkaline water that is adjusted into PH8-9 has also reduced the corrosivity to cleaning equipment when guaranteeing clean decontamination, has extended the service life of equipment.The drying relating in the present invention, drying cylinder are dried for the moisture content that guarantees finished product bottle sheet and are significant 0.5%, this outer drum mixing energy enough reduce batch and batch between difference.
Comparative example one:
2. the concrete steps of the PET bottle sheet cleaning in embodiment mono-are used in prerinse from the hot saucepan heat in rear road, wash after temperature be 75 ℃ through dilution be adjusted into pH value be 8 alkaline water to change temperature into be the ordinary tap water of 25 ℃, all the other operations are with embodiment mono-.
Comparative example two:
3. the concrete steps of the PET bottle sheet cleaning in embodiment mono-are used in de-mark from the hot saucepan heat in rear road, wash after temperature be 75 ℃ through dilution be adjusted into pH value be 8 alkaline water to change temperature into be the ordinary tap water of 25 ℃, all the other operations are with embodiment mono-.
Comparative example three:
By the concrete steps of the PET bottle sheet cleaning in embodiment mono-4. the transport tape transporting velocity in automatic sorting be set as 25m/min, the jetting pressure of air-blast atomizer is 0.2mpa., all the other operations are with embodiment mono-.
Comparative example four:
6. the concrete steps of the PET bottle sheet cleaning in embodiment mono-are used in fragmentation from the hot saucepan heat in rear road, wash after temperature be 40 ℃ through dilution be adjusted into pH value be 8 alkaline water to change temperature into be the ordinary tap water of 25 ℃, all the other operations are with embodiment mono-.
Comparative example five:
By the concrete steps of the PET bottle sheet cleaning in embodiment mono-7. heat wash middle adopted be that to add the pH value of specific cleaning agent to be 11, by vapor (steam) temperature adjustment, to control be that the alkaline water of 95 ℃ changes pH value into and is 13, by vapor (steam) temperature adjustment, controls to be the alkaline water of 85 ℃, all the other operations are with embodiment mono-.
Comparative example six:
10. the concrete steps of the PET bottle sheet cleaning in embodiment mono-are dried to mesoporous is that the drier of 4mm changes the drier that aperture is 6mm into, and all the other operations are with embodiment mono-.
Comparative example seven:
By the concrete steps of the PET bottle sheet cleaning in embodiment mono-
steam pressure in oven dry is that 0.3mpa changes 0.5mpa into, and all the other operations are with embodiment mono-.
Comparative example eight:
By the concrete steps of the PET bottle sheet cleaning in embodiment mono-
mixed processes is cancelled, and all the other operations are with embodiment mono-.
The indices of the PET bottle sheet being made by above embodiment and comparative example is as following table:
Note: broken bottle chip size unification is by 12*12mm, and the inherent viscosity of original PET bottle is 0.78dl/g.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present invention.
Claims (10)
1. a PET bottle sheet cleaning, it is characterized in that, PET bottle is removed heterochromatic bottle and non-PET material bottle, the manual sorting of artificial separation platform through opening bag, the preliminary removal of impurities of whole bottle precleaning unit, the de-mark of de-device for mark, sorting unit, breaker is broken, hot saucepan heat is washed, neutralizing tank neutralization, rinsing device rinsing, drying, drying cylinder are dried, mix, meter is heavy and pack after complete cleaning.
2. a kind of PET bottle sheet cleaning as claimed in claim 1, it is characterized in that, what described de-device for mark adopted is the de-mark of wet type band water, the water adopting be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9.
3. a kind of PET bottle sheet cleaning as claimed in claim 1, it is characterized in that, the water that the preliminary removal of impurities of described whole bottle precleaning unit adopts be come from temperature after the hot saucepan heat in rear road is washed be 60-80 ℃ through dilution, be adjusted into the alkaline water that PH is 8-9, the whole bottle prerinse time is 10-15min.
4. a kind of PET bottle sheet cleaning as claimed in claim 1, is characterized in that, the selected transport tape speed of described sorting unit is 15-20m/min, and the jetting pressure of air-blast atomizer is 0.3-0.5mpa.
5. a kind of PET bottle sheet cleaning as claimed in claim 1, is characterized in that, what described breaker fragmentation adopted is that wet type adds water fragmentation, and added is to come from the alkaline water that the PH after whole bottle precleaning unit is used is 8-9.
6. a kind of PET bottle sheet cleaning as claimed in claim 1, is characterized in that, it is that after adding cleaning agent, pH value is 11-12, by vapor (steam) temperature adjustment, controls the alkaline water for 95-99 ℃ that described hot saucepan heat is washed adopted.
7. a kind of PET bottle sheet cleaning as claimed in claim 1, is characterized in that, it is after using while coming from the drying cylinder oven dry of rear road and through being adjusted into the steam of 0.15-0.2mpa that described hot saucepan heat is washed used steam.
8. a kind of PET bottle sheet cleaning as claimed in claim 1, is characterized in that, described drying is that the dewaterer that is 3-5mm by aperture completes, and it is to adopt the steam that steam pressure is 0.3-0.4mpa to complete that drying cylinder is dried.
9. a kind of PET bottle sheet cleaning as claimed in claim 1, is characterized in that, described mixing is to adopt the rotary drum without heating jacket to complete.
10. a PET bottle sheet cleaning product line, it is characterized in that, comprise opening of setting gradually according to production line packing is put, precleaning unit, de-device for mark, automatic sorting device, artificial separation device, breaker, hot washing device, neutralising arrangement, rinsing device, spin-drying device, drying unit, mixing arrangement and the heavy packing device of meter; This PET bottle sheet cleaning product line also comprises the first pipeline, the second pipeline, the 3rd pipeline and the 4th pipeline, the delivery port of this hot washing device is connected with the water inlet of precleaning unit by the first pipeline, the delivery port of this hot washing device is connected with the water inlet of de-device for mark by the second pipeline, the delivery port of this precleaning unit is connected with the water inlet of breaker by the 3rd pipeline, and the steam (vapor) outlet of this drying unit is connected with the steam inlet of hot washing device by the 4th pipeline.
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Cited By (8)
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| CN104708730A (en) * | 2015-02-12 | 2015-06-17 | 苏州玖隆再生科技股份有限公司 | PET bottle recycling process |
| CN104890143A (en) * | 2015-06-10 | 2015-09-09 | 河北吉悦再生物资回收有限公司 | Production technology capable of utilizing PET waste plastics for producing bottle purifying pieces for fibrous raw materials |
| CN104984947A (en) * | 2015-06-12 | 2015-10-21 | 龙福环能科技股份有限公司 | Water-washing process for recycling PET (polyethylene glycol terephthalate) bottle chips |
| CN105252673A (en) * | 2015-11-09 | 2016-01-20 | 奉化市旭日鸿宇有限公司 | Recycling and processing device for waste plastic |
| CN105251732A (en) * | 2015-11-09 | 2016-01-20 | 奉化市旭日鸿宇有限公司 | Cleaning method of plastic particle raw materials |
| CN109731794A (en) * | 2019-01-17 | 2019-05-10 | 上海电机学院 | Cillin bottle automatic cleaning system and method based on machine vision |
| CN111438854A (en) * | 2020-04-28 | 2020-07-24 | 浦江次方环保科技有限公司 | Recovery processing device of plastic lunch box |
| CN114311411A (en) * | 2021-12-22 | 2022-04-12 | 苏州玖隆再生科技股份有限公司 | Automatic recovery processing equipment and production process of PE bottle flake reclaimed material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104708730A (en) * | 2015-02-12 | 2015-06-17 | 苏州玖隆再生科技股份有限公司 | PET bottle recycling process |
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| CN105251732A (en) * | 2015-11-09 | 2016-01-20 | 奉化市旭日鸿宇有限公司 | Cleaning method of plastic particle raw materials |
| CN109731794A (en) * | 2019-01-17 | 2019-05-10 | 上海电机学院 | Cillin bottle automatic cleaning system and method based on machine vision |
| CN111438854A (en) * | 2020-04-28 | 2020-07-24 | 浦江次方环保科技有限公司 | Recovery processing device of plastic lunch box |
| CN111438854B (en) * | 2020-04-28 | 2021-01-01 | 江西欧丽达实业有限公司 | Recovery processing device of plastic lunch box |
| CN114311411A (en) * | 2021-12-22 | 2022-04-12 | 苏州玖隆再生科技股份有限公司 | Automatic recovery processing equipment and production process of PE bottle flake reclaimed material |
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