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Method and device for recycling industrial waste containing nylon 66 triethylene glycol

A technology of industrial waste and triethylene glycol, applied in ether separation/purification, ether preparation, etc., can solve the problems of unreasonable and effective recycling of triethylene glycol industrial waste, environmental pollution, etc., and achieve simple structure, precise parameter control, and reasonable connection Effect

Inactive Publication Date: 2017-08-25
任广鸿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a brand-new recycling method and supporting device for the problem that the triethylene glycol industrial waste containing 20% ​​to 30% nylon 66 in the prior art cannot be recycled reasonably and effectively. 30% triethylene glycol triethylene glycol in nylon 66 industrial waste prevents precious resources with a certain recovery value from being burned in vain, and solves the environmental pollution of carbon dioxide emissions by combustion

Method used

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  • Method and device for recycling industrial waste containing nylon 66 triethylene glycol

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Embodiment 1

[0020] Embodiment 1: A kind of device that is used to reclaim industrial waste containing nylon 66 triethylene glycol, see figure 1 , the device comprises a still 1, a safety valve 2 is installed on one side of the top of the still 1, and a feed inlet 9 is arranged on the other side, the top of the still 1 is a fractionating column 3, and an air outlet is arranged on the side of the upper part of the fractionating column 3, A thermometer 4 is inserted at the gas outlet, and the still temperature is detected in time by the thermometer. Connect the first cooler 5 and the second cooler 6 successively through the gas pipeline at the gas outlet, the angle between the first cooler 5 and the second cooler 6 and the fractionation column is 75°, the inner pipe of the first cooler 5 and the The inner pipes of the second cooler 6 are connected with flanges. The water outlet pipe on the upper part of the second cooler 6 is connected with the water inlet pipe on the lower part of the firs...

Embodiment 2

[0025] Embodiment 2: a kind of recycling method that contains nylon 66 triethylene glycol industrial waste, this method is implemented with the device described in embodiment 1, is specifically: at first, waste pretreatment: use electricity to contain 20%~30% of the triethylene glycol industrial waste swollen into a paste of nylon 66 is heated to 70°C, heat-preserved and settled for 2 hours, and heavy impurities such as sand are removed. Waste plastic bags, sawdust and other light impurities, the waste after precipitation and filtration, all impurities in the waste except water and swollen nylon 66 have been removed;

[0026] Then evaporate the water: Put the pretreated waste into an atmospheric distillation kettle to heat and evaporate, the evaporation temperature is 100°C, and the water will be discharged from the outlet of the second cooler in a vapor state. Castor oil can be added to the proportion of castor oil, which can reduce the viscosity of the waste, reduce the surf...

Embodiment 3

[0029]Embodiment 3: a kind of recycling method that contains nylon 66 triethylene glycol industrial waste, this method is implemented with the device described in embodiment 1, is specifically: at first, waste pretreatment: use electricity to contain 20%~30% of the triethylene glycol industrial waste swollen into a paste of nylon 66 is heated to 60°C, heat-preserved and settled for 1.8 hours, and heavy impurities such as sand are removed. Waste plastic bags, sawdust and other light impurities, the waste after precipitation and filtration, all impurities in the waste except water and swollen nylon 66 have been removed;

[0030] Then evaporate the water: put the pretreated waste into an atmospheric still to heat and evaporate, the evaporation temperature is 100°C, and the water will be discharged from the outlet of the second cooler in a vapor state. After evaporation, add 0.4% to the waste The ratio of adding kale seed oil.

[0031] Then start the cooling device: continue heat...

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Abstract

The invention discloses a method and a device for recycling industrial waste containing nylon 66 triglycol. The method comprises the following steps: heating the industrial waste containing 20%-30% swelling pasty nylon 66 triglycol to be 50-70 DEG C, preserving the heat for sedimentation for 1-2 hours, and filtering the waste located at the upper part after extraction sedimentation by using a 25-35-mesh filter screen; putting the treated waste into an atmospheric distillation still to be heated to be 100 DEG C, and adding castor oil in the waste in the proportion of 0.2% to 0.5% after water evaporation; when the temperature is raised to be 190-210 DEG C, opening a second cooler and a first cooler for cooling water on a recycling pipeline, and controlling the inlet water temperature of the second cooler to be 10-35 DEG C and the outlet water temperature of the first cooler to be not more than 65-70 DEG C; and finally distilling to recycle triglycol. Precious resources with certain recovery values are not wasted, and the environmental pollution that carbon dioxide is discharged by using a combustion method is also solved. The device is simple in structure, the connection of components is reasonable and related, the operation is simple and convenient, and the parameter control is accurate.

Description

technical field [0001] The invention relates to the treatment of three wastes, in particular to a recycling method and device for industrial waste containing nylon 66 triethylene glycol. Background technique [0002] The triethylene glycol industrial waste containing 20% ​​to 30% of nylon 66 is produced by the factory using triethylene glycol to regularly clean up and discharge the polymerizer before and after it. Mainly, the cord fabric company of China Pingmei Shenma Group Shenma Co., Ltd. regularly cleans the discharge of the front and rear polymerizers with triethylene glycol. When just discharged, triethylene glycol accounted for 70-80% (differences due to different operations), and the rest was nylon 66 swollen by triethylene glycol. Because of the difference in water absorption for different storage times, and because of rainwater entering in open storage, water The content of waste triethylene glycol is not fixed, and some are mixed with domestic waste. Due to the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C43/13C07C41/34C07C41/42
CPCC07C41/34C07C41/42C07C43/13
Inventor 曹红艺任广鸿彭国亚
Owner 任广鸿
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