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Extruder stagnant oil purification device and recovery and purification method thereof

A purification device and extruder technology, applied in chemical instruments and methods, separation methods, filtration circuits, etc., can solve the problems of insignificant impurity removal effect, inability to be recycled, and no specific solutions proposed, etc. Realize the effect of reuse, high degree of automation, and reduction of corrosion loss

Inactive Publication Date: 2020-03-27
广东精美特种型材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the patent's can't get recyclable oil
Another example is the patent No. WO2017132980A1, which discloses a low-temperature recovery device for oil and gas, including a low-temperature oil and gas separator, an adsorption unit, and a refrigeration unit, but the impurity removal effect of this method is not significant
[0003] In the field of sluggish oil recovery and purification, there are still many practical problems that need to be dealt with in practical applications, and no specific solutions have been proposed.

Method used

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  • Extruder stagnant oil purification device and recovery and purification method thereof
  • Extruder stagnant oil purification device and recovery and purification method thereof
  • Extruder stagnant oil purification device and recovery and purification method thereof

Examples

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Embodiment 1

[0034] Such as figure 1 As shown, this embodiment provides a method for recovering and purifying sluggish oil of an extruder, comprising the following steps:

[0035] (1) Impurity removal: adjust the acidic pH of the aqueous solution containing sluggish oil and solids, and introduce the acidic aqueous solution containing sluggish oil and solids into the impurity removal unit for coarse filtration to remove large particles of impurities in the sluggish oil. After the oil is pre-precipitated, a separating agent is added, and the separating agent is a hydrophilic separating agent;

[0036] (2) Precipitation: Put the sluggish oil after adding the separating agent into the first-stage settling tank for static precipitation, the water and impurities in the sluggish oil settle to the bottom and then separate out, and the sluggish oil passes through the pump at the upper end of the first-stage settling tank The filter device enters the secondary sedimentation tank for gravity sedimen...

Embodiment 2

[0044] Such as figure 1 As shown, this embodiment provides a method for recovering and purifying sluggish oil of an extruder, comprising the following steps:

[0045] (1) Impurity removal: Adjust the acidic pH of the aqueous solution containing sluggish oil and solids to 5-6, and introduce the acidic aqueous solution containing sluggish oil and solids into the impurity removal unit for coarse filtration to remove large particles in the sluggish oil Impurities, the sluggish oil is added to the separating agent after preliminary precipitation, and the separating agent is a hydrophilic separating agent; in the present embodiment, the addition amount of the separating agent is 25-45% Separating agent, the separating agent is a high-molecular polymer, which has an extremely strong alkyl group and is hydrophilic. When in use, use a metering pump to control its addition amount, and add the separating agent to the impurity removal unit evenly and slowly , and controlling the temperat...

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Abstract

The invention provides an extruder stagnant oil purification device and a recovery and purification method thereof. Recyclable purified stagnant oil is prepared through the steps of impurity removal,precipitation, water removal, refining and purification, and the problems that stagnant oil resources are wasted and the environment and production are affected are solved. Besides, an impurity removal unit, a precipitation unit, a water removal unit, a refining unit and a purification unit are arranged in the purification device in one-to-one correspondence with the steps in the purification method. The corrosion loss of production can be reduced, and the separation efficiency of oil, water, particles and impurities is high. The purification device is simple and convenient to use. The stagnant oil can be automatically recycled as long as the purification device is started and purification conditions are set. The automation degree is high, and manual operation is reduced.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an extruder sluggish oil purification device and a recovery and purification method thereof. Background technique [0002] The sluggish oil in the extrusion machine is mixed with dust or droplet pollutants or other metal processing lubricants during industrial processing. If the sluggish oil containing impurities is not handled properly, it will not only affect production, but also affect the environment and the health of production employees. Health, and in industrial production, it will cause corrosion damage to mechanical equipment and reduce production efficiency. The commonly used oil recovery methods include absorption method, adsorption method, condensation method and so on. In order to cope with the increasingly stringent environmental protection requirements, it is necessary to improve and upgrade the traditional sluggish oil recovery method. For example, the patent No...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/00
CPCB01D36/00
Inventor 余国政何海岗周军平周江平刘欢
Owner 广东精美特种型材有限公司
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