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High-efficiency lanolin recovering method and device

A recovery device and lanolin technology, applied in the field of high-efficiency lanolin recovery, can solve the problems of large loss of lanolin, low extraction rate, and inability to perform good control, and achieve the effect of reducing loss and increasing extraction rate

Active Publication Date: 2014-09-03
CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above items 1, 3 and 4 of this method still cannot be well controlled, and the loss of lanolin is large and the extraction rate is low

Method used

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  • High-efficiency lanolin recovering method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment is a high-efficiency lanolin recovery method, which is carried out in the following steps:

[0027] (1) After dehairing the wool scouring wastewater containing lanolin, the demulsification, cooking and desilting treatments are alternately completed in the cooking box. The lanolin-containing wastewater is first added with a demulsifier in the inlet pipe, and then the swirl washing process, cooking process and precipitation process are completed in the cooking box; the swirl washing process is completed by a tangential jet or a cyclone; the cooking process uses steam cooking, The scouring wastewater is raised to 70°C; the sedimentation process is that the scouring wastewater is steamed and left for 30 minutes to settle, and the sedimented silt is discharged regularly. The silt in the scouring wastewater is highly viscous and cannot be completely separated by high-speed centrifugal separation technology. Separation, the silt can be effectively separated from t...

Embodiment 2

[0033] This embodiment is a high-efficiency lanolin recovery method, which is carried out in the following steps:

[0034] (1) After dehairing the wool scouring wastewater containing lanolin, the demulsification, cooking and desilting treatments are alternately completed in the cooking box. The lanolin-containing wastewater is first added with a demulsifier in the inlet pipe, and then the swirl washing process, cooking process and precipitation process are completed in the cooking box; the swirl washing process is completed by a tangential jet or a cyclone; the cooking process uses steam cooking, The scouring wastewater is raised to 80°C; the sedimentation process is that the scouring wastewater will stand for 35 minutes after cooking, and the sediment will be discharged regularly. The silt in the scouring wastewater has a high viscosity and cannot be completely removed by high-speed centrifugal separation technology. Separation, the silt can be effectively separated from the was...

Embodiment 3

[0039] This embodiment is a high-efficiency lanolin recovery method, which is carried out in the following steps:

[0040] (1) After dehairing the wool scouring wastewater containing lanolin, the demulsification, cooking and desilting treatments are alternately completed in the cooking box. The lanolin-containing wastewater is first added with a demulsifier in the water inlet pipe, and then the swirling process, cooking process and precipitation process are completed in the cooking box; the swirling process is completed by tangential jet or cyclone; the steaming process uses steam to make washing The wool wastewater rises to 90°C; the sedimentation process is that the wool scouring wastewater is boiled and left for 40 minutes to settle, and the sedimented silt is discharged regularly. The silt in the wool scouring wastewater is very viscous and cannot be completely separated by high-speed centrifugal separation technology. The swirling flow can first effectively separate the mud ...

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Abstract

The invention belongs to the field of lanolin recovery in wool washing industry, in particular to a high-efficiency lanolin recovering method and a high-efficiency lanolin recovering device. The method comprises the following steps of: performing wool-removing treatment on lanolin-containing wool washing wastewater, and alternately finishing demulsifying, boiling, desilting and other technical processes in a multifunctional boiling box; finishing the processes of lanolin capturing, primary concentration of lanolin and high-level concentration of the lanolin through a three-level butterfly type centrifugal separation stage; and finally barreling the finished lanolin. The lanolin is extracted from the wool washing wastewater, waste materials are changed into valuable things, and the loss of the lanolin can be greatly reduced. Therefore, the extraction ratio of the lanolin is greatly improved, and the high requirement on pollutant emission in the wastewater is reduced.

Description

Technical field [0001] The invention belongs to the field of lanolin recovery in the wool scouring industry, and specifically is a high-efficiency lanolin recovery method and device for wool scouring wastewater. Background technique [0002] The wool scouring industry is a sub-industry of the wool spinning industry. The scale of the industry is relatively small. However, the problem of high-concentration pollution of wool scouring wastewater has caused headaches for the industry. In recent years, with the further deepening of reform and opening up, wool scouring projects in many countries have been transferred to China, which has greatly increased the environmental pressure of water pollution in China. In response to the above reasons, the state has also issued some related policies and adopted some measures, such as raising the wastewater discharge standards and so on. After a long-term technical and economic feasibility analysis and research, the applicant found that the pollu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B11/00C02F9/10
CPCY02W30/74
Inventor 张敏陈明龙
Owner CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO LTD
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