阅读说明：本技术 一种废油无害化再生工艺 (Waste oil harmless regeneration process ) 是由 不公告发明人 于 2018-06-12 设计创作，主要内容包括：本发明涉及一种废油无害化再生工艺,属于废油再生生产工艺领域。一种废油无害化再生工艺,其生产工艺步骤为：过滤除金属杂质；过滤除大杂；降压脱水；分子蒸馏提纯；过滤抛光。优点是：本工艺采用纯物理分离,产品质量稳定,无二次污染。分离效果好,产品纯度高。产品可经过添加各种添加剂调合成工业设备、交通车辆等各种成品润滑油。(The invention relates to a waste oil harmless regeneration process, and belongs to the field of waste oil regeneration production processes. A waste oil harmless regeneration process comprises the following production process steps: filtering out metal impurities; filtering out the large impurities; dehydrating under reduced pressure; purifying by molecular distillation; and (5) filtering and polishing. The advantages are that: the process adopts pure physical separation, and has stable product quality and no secondary pollution. Good separation effect and high product purity. The product can be blended into various finished lubricating oils of industrial equipment, traffic vehicles and the like by adding various additives.)

1. A waste oil harmless regeneration process is characterized by comprising the following production process steps:

1) filtering out metal impurities: filtering the waste oil by a magnetic filter under the pressure of 0.1-0.5Mpa to remove metal impurities in the waste oil;

2) filtering out the large impurities; under the condition that the pressure of the waste oil from which the metal impurities are removed is 0.1-0.5MPa, enabling the waste oil from which the metal impurities are removed to pass through a blue filter, and removing large-particle impurities in the waste oil;

3) and (3) pressure reduction and dehydration: the waste oil from which the large particle impurities are removed is sent to a preheater to be preheated to the temperature of 100 ℃ and 120 ℃ by a pump, and then sent to a film evaporator to be treated by the film evaporator;

wherein, the low boiling point water, gasoline and diesel oil enter a light component receiving tank after being condensed by a plate condenser, when the liquid level of the light component receiving tank reaches a high liquid level, the light component receiving tank is conveyed to an oil-water separator by a pump, the water in the light component receiving tank is removed, the gasoline and the diesel oil in the light component receiving tank are recovered, and the unevaporated material in the light component receiving tank enters a heavy component tank;

4) molecular distillation and purification: conveying the materials in the heavy component tank to a reheater, heating to the temperature of 280-320 ℃, then conveying the materials to a primary molecular distiller, treating the materials by the primary molecular distiller, wherein the base oil which can be utilized is condensed by a built-in condenser and then enters a light component receiving tank, and the heavy component enters a heavy component receiving tank;

5) filtering and polishing: and (3) feeding the base oil of the light component receiving tank into a polishing filter, and filtering to obtain clear and transparent lubricating oil base oil with low chroma.

Technical Field

The invention relates to a waste oil harmless regeneration process, and belongs to the field of waste oil regeneration production processes.

Background

The harmless treatment of the livestock and poultry died of diseases mainly aims at environmental safety and resource recycling, achieves the expected aim, and needs advanced treatment equipment to complete the production task. The livestock and poultry died of diseases are subjected to harmless treatment by adopting a high-temperature high-pressure sterilization dehydration drying process, an indirect heating mode is adopted, and steam is not directly contacted with the livestock and poultry died of diseases, so that pathogens of the livestock and poultry died of diseases are completely killed. At present, most of waste oil is purchased by small oil refineries, and the illegal small oil refineries are illegal enterprises prohibited by national regulations and controlled strictly, and are processed and produced by using inferior waste oil regeneration production processes to produce inferior gasoline and diesel oil or fire oil. The existing waste oil regeneration production process has the defects of poor quality of regenerated oil products, complex process and high production cost.

Disclosure of Invention

The invention aims to provide a harmless waste oil regeneration process aiming at the defects of poor oil quality, complex process, large equipment investment and high production cost of the existing waste oil regeneration production process.

The production process comprises the following steps:

1) filtering out metal impurities: filtering the waste oil by a magnetic filter under the pressure of 0.1-0.5Mpa to remove metal impurities in the waste oil;

2) filtering out the large impurities: under the condition that the pressure of the waste oil from which the metal impurities are removed is 0.1-0.5Mpa, the waste oil from which the metal impurities are removed passes through a blue filter to remove large-particle impurities in the waste oil;

3) and (3) pressure reduction and dehydration: the waste oil from which the large particle impurities are removed is sent to a preheater to be preheated to the temperature of 100 ℃ and 120 ℃ by a pump, and then sent to a film evaporator to be treated by the film evaporator;

wherein, the low boiling point water, gasoline and diesel oil enter a light component receiving tank after being condensed by a plate condenser, when the liquid level of the light component receiving tank reaches a high liquid level, the light component receiving tank is conveyed to an oil-water separator by a pump, the water in the light component receiving tank is removed, the gasoline and the diesel oil in the light component receiving tank are recovered, and the unevaporated material in the light component receiving tank enters a heavy component tank;

4) molecular distillation and purification:

and (3) conveying the material in the heavy component tank to a reheater, heating to the temperature of 280-320 ℃, conveying to a primary molecular distiller, treating by the primary molecular distiller, wherein the base oil which can be utilized is condensed by a built-in condenser and then enters a light component receiving tank, and the heavy component enters a heavy component receiving tank.

5) Filtering and polishing:

and (3) feeding the base oil of the light component receiving tank into a polishing filter, and filtering to obtain clear and transparent lubricating oil base oil with low chroma.

The invention has the advantages that: the process adopts pure physical separation, the product quality is stable, and no secondary pollution is caused; the separation effect is good, and the product purity is high; the product can be blended into various finished lubricating oils of industrial equipment, traffic vehicles and the like by adding various additives.

Detailed Description

A waste oil regeneration process is characterized by comprising the following production process steps:

1) filtering out metal impurities: filtering the waste oil by a magnetic filter under the pressure of 0.1-0.5Mpa to remove metal impurities in the waste oil;

2) filtering out the large impurities: under the condition that the pressure of the waste oil from which the metal impurities are removed is 0.1-0.5Mpa, the waste oil from which the metal impurities are removed passes through a basket filter to remove large-particle impurities in the waste oil;

3) and (3) pressure reduction and dehydration: the waste oil from which the large particle impurities are removed is sent to a preheater to be preheated to the temperature of 100 ℃ and 120 ℃ by a pump, and then sent to a film evaporator to be treated by the film evaporator;

wherein, the low boiling point water, gasoline and diesel oil are condensed by a plate condenser and then enter a light component receiving tank, when the liquid level of the light component receiving tank reaches a high liquid level, the light component is conveyed to an oil-water separator by a pump, the water in the light component receiving tank is removed, the gasoline and the diesel oil in the light component receiving tank are recovered,

wherein the material which is not evaporated enters a heavy component tank;

aims to remove substances with low boiling point such as water and the like in the waste engine oil and diesel oil, carry out dehydration pretreatment on raw materials and improve the flash point of base oil.

4) Molecular distillation and purification:

and (3) conveying the material in the heavy component tank to a reheater, heating to the temperature of 280-320 ℃, and then conveying to a primary molecular distiller for treatment. Wherein, the base oil which can be utilized enters a light component receiving tank after being condensed by a built-in condenser, and the heavy component enters a heavy component receiving tank. The purpose is to separate out the basic oil in the material.

5) Filtering and polishing:

and (3) feeding the base oil of the light component receiving tank into a polishing filter, and filtering to obtain clear and transparent lubricating oil base oil with low chroma.