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Energy-saving circulating system for cleaning PET (polyethylene terephthalate) bottle sheets

A recycling system and bottle flake technology, applied in the field of PET bottle flake cleaning, can solve the problems of alkaline water reuse that is not mentioned, and no clear plan has been proposed, so as to improve the cleaning quality and product market competitiveness, enhance competitiveness, The effect of reducing energy consumption

Inactive Publication Date: 2014-03-19
福建鑫华股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two patent documents are all about the real-time control of steam and other related process parameters from the control system, but there is no mention of the reuse of steam after drying in the subsequent process and the reuse of alkaline water in each process
[0005] Another example is the Chinese patent application 201210454069.2 "An Automated Waste Plastic Bottle Cleaning and Recycling Process", which emphasizes the high-temperature cooking and disinfection for each process, but for the important processes in each process, especially the temperature of the cleaning water used, the pH value, whether Recycling to reduce energy consumption, reduce costs, dehydration and drying process, etc. did not propose a clear plan

Method used

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  • Energy-saving circulating system for cleaning PET (polyethylene terephthalate) bottle sheets
  • Energy-saving circulating system for cleaning PET (polyethylene terephthalate) bottle sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The present invention relates to an energy-saving circulation system for cleaning PET bottle flakes. The steam used by the drying device of the PET cleaning production line is adjusted to a specific pressure and then passed into a hot pot for use, and the alkaline water after use in the hot pot is filtered and drained. After adjusting to a specific temperature and pH value, it is passed into the pre-cleaning device and the delabeling device. After the alkaline water used in the pre-cleaning device is filtered and adjusted to a specific temperature and PH value, it is passed into the crushing device for use. The alkaline water after the crushing device is used The neutral water is filtered and adjusted to a specific temperature and pH value, and then replenished and reused to the pre-cleaning device and the delabeling device.

[0040] It should be noted that the energy-saving circulation system for cleaning PET bottle flakes involved in the present invention adjusts the s...

Embodiment 2

[0049] The present invention relates to an energy-saving circulation system for cleaning PET bottle flakes. The steam used by the drying device of the PET cleaning production line is adjusted to a specific pressure and then passed into a hot pot for use, and the alkaline water after use in the hot pot is filtered and drained. After adjusting to a specific temperature and pH value, it is passed into the pre-cleaning device and the delabeling device. After the alkaline water used in the pre-cleaning device is filtered and adjusted to a specific temperature and PH value, it is passed into the crushing device for use. The alkaline water after the crushing device is used The neutral water is filtered and adjusted to a specific temperature and pH value, and then replenished and reused to the pre-cleaning device and the delabeling device.

[0050] It should be noted that the energy-saving circulation system for cleaning PET bottle flakes involved in the present invention adjusts the s...

Embodiment 3

[0059] The present invention relates to an energy-saving circulation system for cleaning PET bottle flakes. The steam used by the drying device of the PET cleaning production line is adjusted to a specific pressure and then passed into a hot pot for use, and the alkaline water after use in the hot pot is filtered and drained. After adjusting to a specific temperature and pH value, it is passed into the pre-cleaning device and the delabeling device. After the alkaline water used in the pre-cleaning device is filtered and adjusted to a specific temperature and PH value, it is passed into the crushing device for use. The alkaline water after the crushing device is used The neutral water is filtered and adjusted to a specific temperature and pH value, and then replenished and reused to the pre-cleaning device and the delabeling device.

[0060] It should be noted that the energy-saving circulation system for cleaning PET bottle flakes involved in the present invention adjusts the s...

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PUM

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Abstract

The invention discloses an energy-saving circulating system for cleaning PET (polyethylene terephthalate) bottle sheets. The energy-saving circulating system comprises an unpacking device, a pre-cleaning device, a label removing device, an automatic sorting device, a manual sorting device, a crushing device, a thermal cleaning device, a neutralizing device, a rinsing device, a spin-drying device, a drying device, a mixing device, a weighing and packaging device and a steam pipeline, wherein the steam pipeline is connected between a steam outlet of the drying device and a steam inlet of the thermal cleaning device, the pressure value of steam in the steam pipeline is 0.15-0.2mpa, the temperature of alkaline water thermally cleaned in a thermal boiler in the thermal cleaning device is heated to 95-99 DEG C by steam, and the pH value of the alkaline water is 11-12. By utilizing the energy-saving circulating system for cleaning the PET bottle sheets, the energy utilization ratio can be greatly improved, the production and machining costs are lowered, and the energy-saving circulating system has wide social generalization significance.

Description

technical field [0001] The invention relates to the field of cleaning PET bottle flakes, in particular to an energy-saving circulation system for cleaning PET bottle flakes. Background technique [0002] As we all know, in recent years, with the surge of the global population, the consumption of various plastic bottles has also increased greatly. Among them, due to the stable and excellent chemical properties of PET and good physical properties, the consumption of PET bottles has increased sharply worldwide. Facing the rapidly changing waste PET bottles, the waste PET bottle recycling industry urgently needs to promote the industrialization, scale and mechanization of waste PET bottle recycling. Because the material of the body of the bottle is different from that of the label attached to the bottle and the bottle cap --- the bottle body is usually PET, and the label is made of PVC, PE, PP and other materials, which caused problems in the recycling process. increase in dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/00
CPCY02W30/62
Inventor 吴端何碧明王山英田雨胜
Owner 福建鑫华股份有限公司