阅读说明：本技术 一种废油低温纯物理处置技术 (Low-temperature pure physical treatment technology for waste oil ) 是由 肖绍武 张钜铖 宗敏芳 梁满坚 周伟豪 王子琦 于 2019-08-19 设计创作，主要内容包括：本发明公开了一种废油低温纯物理处置技术,主要包括净化处理、雾化分离处理、精馏处理和吸附净化处理,所述净化处理采用涡流分离器进行油水分离,所述净化处理采用梳齿分离器,对废油中存在的金属固体杂质进行吸附,采用滤芯吸附过滤装置对废油中除去金属固体杂质的其它固体杂质进行吸附,且磁滤吸附过滤设置在滤芯吸附过滤装置上游,通过磁滤吸附过滤装置将容易磁化的杂质吸附。本发明设计合理,采用纯物理方式进行脱水,避免化学处理方法造成环境污染,高效破乳方式进行深度彻底破乳,净化彻底,延长更换周期,且采用低温、负压、微催化技术进行精馏处理,生产成本低。(The invention discloses a low-temperature pure physical treatment technology for waste oil, which mainly comprises purification treatment, atomization separation treatment, rectification treatment and adsorption purification treatment, wherein the purification treatment adopts a vortex separator for oil-water separation, the purification treatment adopts a comb tooth separator for adsorbing metal solid impurities in the waste oil, a filter element adsorption and filtration device is adopted for adsorbing other solid impurities in the waste oil, the metal solid impurities are removed, the magnetic filtration adsorption and filtration device is arranged at the upstream of the filter element adsorption and filtration device, and the impurities which are easy to magnetize are adsorbed by the magnetic filtration adsorption and filtration device. The invention has reasonable design, adopts a pure physical mode to dehydrate, avoids environmental pollution caused by a chemical treatment method, adopts a high-efficiency demulsification mode to deeply and thoroughly demulsify, thoroughly purifies and prolongs the replacement period, and adopts low-temperature, negative-pressure and micro-catalytic technologies to carry out rectification treatment, thereby having low production cost.)

1. a low-temperature pure physical treatment technology for waste oil is characterized by mainly comprising purification treatment, atomization separation treatment, rectification treatment and adsorption purification treatment, wherein the purification treatment adopts a vortex separator for oil-water separation, the purification treatment adopts a comb separator for adsorbing metal solid impurities in the waste oil, a filter element adsorption and filtration device is adopted for adsorbing other solid impurities in the waste oil, the metal solid impurities are removed from the waste oil, and magnetic filtration adsorption and filtration is arranged at the upstream of the filter element adsorption and filtration device;

the atomization separation treatment adopts heating equipment to heat waste oil, the heated waste oil enters an atomizer to be atomized and sprayed through the atomizer, a spraying range adopts hollow three-dimensional equipment to seal, the waste oil is atomized into fine liquid drops, an air jet device at the bottom of the hollow three-dimensional equipment upwards jets air flow, the fine liquid drops are downwards settled under the action of gravity, the air jet device upwards jets the air flow, so that the atomized waste oil is upwards stirred, a resonance device is arranged in the hollow three-dimensional equipment, the waste oil of the fine liquid drops is vibrated at a high speed under the action of the resonance device, the heated and gasified water floats upwards, and the oil drops settle to form liquid and converge at the bottom of the hollow three-dimensional equipment, so that the deep oil-gas;

The rectification treatment adopts a closed melting furnace, the treated modified crude oil and the catalyst are respectively sent into the closed melting furnace, the waste oil as the raw material is gradually changed into gas from pasty substances due to the action of heating and the special catalyst, the gas molecules generated along with the increase of the temperature in the furnace are gradually increased, the molecules and the molecules, the molecules and the wall of the reactor, the molecules and the catalyst in an outlet reaction kettle collide with each other due to the continuous movement of the gas molecules, and then a part of small molecules enter an oil outlet pipeline through the cracking of the catalyst, and are separated, cooled and filtered to form the finished oil; returning the other part of macromolecules into the gasifying melting furnace for re-reaction until all the macromolecules are cracked into oil liquid with different qualities by the catalyst;

the adsorption purification treatment is to send the liquid oil obtained after condensation into a fine filtration adsorption tower for fine filtration treatment, and the liquid oil obtained after fine filtration treatment is used as finished oil; the fine filtration adsorption tower adopts a clay fine filtration adsorption tower, and the clay fine filtration adsorption tower is a pure physical adsorption tower and can adsorb a certain amount of impurity particles in the waste oil, so that the color and acid value are changed.

2. a cold pure physical disposal technique for used oil according to claim 1, wherein the temperature of the gas phase catalytic reforming is divided into three temperature stages, the first temperature stage producing light oil, the second temperature stage producing diesel oil, and the third temperature stage producing lube oil.

3. a cold pure physical disposal technique for used oil according to claim 1, wherein qualified cleaning is performed when the water content is less than 1% by mass and the oxide and carbide contents are less than 0.75% by mass.

4. The low-temperature pure physical waste oil disposal technology of claim 1, wherein a vacuum pump is adopted to pump out liquid oil at the bottom of the hollow three-dimensional equipment, and the liquid oil is sent to a condenser to be condensed, so as to obtain modified crude oil before rectification.

Technical Field

The invention relates to a waste oil treatment technology, in particular to a low-temperature pure physical treatment technology for waste oil.

background

The output of used oil is huge every year, and can discharge waste water along with industrial waste water together and return the processing plant, and the waste oil water recovery system that discharges of many medium-sized waste water treatment plants still adopts simple and crude oil interceptor at present, leans on natural sedimentation to be assisted with chemical additive separation oil slick, and waste oil regeneration processing technique majority adopts the chemical method to carry out waste oil regeneration processing, mainly has following technical problem:

(1) In the aspect of dehydration, single technologies such as polymerization combination or vacuum separation are adopted for dehydration, so that demulsification is not thorough, a solid impurity purification device is simple and crude, replacement is frequent, the treatment index is low, and the water content of treated oil is high (up to 200 ppm).

(2) The thermal cracking only uses high temperature to crack macromolecular hydrocarbon into micromolecular hydrocarbon, the production energy consumption is high, and the quality of the oil liquid prepared by recycling is difficult to ensure.

(3) The method of adding the additive into the emulsified oil is adopted in the aspects of demulsification and water-in-oil breaking technology, so that the oil yield is reduced, and the phenomena of emulsification and pollution are caused again.

Disclosure of Invention

The invention aims to provide a low-temperature pure physical treatment technology for waste oil, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

A waste oil low-temperature pure physical treatment technology mainly comprises purification treatment, atomization separation treatment, rectification treatment and adsorption purification treatment, wherein the purification treatment adopts a vortex separator to carry out oil-water separation, the purification treatment adopts a comb tooth separator to adsorb metal solid impurities in the waste oil, a filter element adsorption and filtration device is adopted to adsorb other solid impurities in the waste oil, the metal solid impurities are removed from the waste oil, and magnetic filtration adsorption and filtration are arranged at the upstream of the filter element adsorption and filtration device;

the atomization separation treatment adopts heating equipment to heat waste oil, the heated waste oil enters an atomizer to be atomized and sprayed through the atomizer, a spraying range adopts hollow three-dimensional equipment to seal, the waste oil is atomized into fine liquid drops, an air jet device at the bottom of the hollow three-dimensional equipment upwards jets air flow, the fine liquid drops are downwards settled under the action of gravity, the air jet device upwards jets the air flow, so that the atomized waste oil is upwards stirred, a resonance device is arranged in the hollow three-dimensional equipment, the waste oil of the fine liquid drops is vibrated at a high speed under the action of the resonance device, the heated and gasified water floats upwards, and the oil drops settle to form liquid and converge at the bottom of the hollow three-dimensional equipment, so that the deep oil-gas;

The rectification treatment adopts a closed melting furnace, the treated modified crude oil and the catalyst are respectively sent into the closed melting furnace, the waste oil as the raw material is gradually changed into gas from pasty substances due to the action of heating and the special catalyst, the gas molecules generated along with the increase of the temperature in the furnace are gradually increased, the molecules and the molecules, the molecules and the wall of the reactor, the molecules and the catalyst in an outlet reaction kettle collide with each other due to the continuous movement of the gas molecules, and then a part of small molecules enter an oil outlet pipeline through the cracking of the catalyst, and are separated, cooled and filtered to form the finished oil; returning the other part of macromolecules into the gasifying melting furnace for re-reaction until all the macromolecules are cracked into oil liquid with different qualities by the catalyst;

The adsorption purification treatment is to send the liquid oil obtained after condensation into a fine filtration adsorption tower for fine filtration treatment, and the liquid oil obtained after fine filtration treatment is used as finished oil; the fine filtration adsorption tower adopts a clay fine filtration adsorption tower, and the clay fine filtration adsorption tower is a pure physical adsorption tower and can adsorb a certain amount of impurity particles in the waste oil, so that the color and acid value are changed.

as a further scheme of the invention: wherein the temperature of the gas phase catalytic reforming is divided into three stages of 40-205 ℃, 205-.

As a still further scheme of the invention: when the mass content of water is less than 1 percent and the mass content of oxides and carbides is less than 0.75 percent, the water is qualified for purification treatment.

as a still further scheme of the invention: and pumping out liquid oil at the bottom of the hollow three-dimensional equipment by using a vacuum pump, and feeding the liquid oil into a condenser for condensation treatment to obtain the modified crude oil before rectification.

Compared with the prior art, the invention has the beneficial effects that:

The invention has reasonable design, adopts a pure physical mode to dehydrate, avoids environmental pollution caused by a chemical treatment method, adopts a high-efficiency demulsification mode to deeply and thoroughly demulsify, thoroughly purifies and prolongs the replacement period, and adopts low-temperature, negative-pressure and micro-catalytic technologies to carry out rectification treatment, thereby having low production cost.

Drawings

FIG. 1 is a schematic flow diagram of a low-temperature pure physical treatment technology of waste oil.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, in the embodiment of the present invention, a low-temperature pure physical treatment technology for waste oil mainly includes purification treatment, atomization separation treatment, rectification treatment, and adsorption purification treatment, wherein the purification treatment uses a vortex separator to separate oil from water, the purification treatment uses a comb separator to adsorb metal solid impurities in the waste oil, a filter element adsorption and filtration device is used to adsorb other solid impurities in the waste oil, the metal solid impurities are removed from the waste oil, and the magnetic filter adsorption and filtration device is disposed at the upstream of the filter element adsorption and filtration device, so that the impurities easy to be magnetized are adsorbed by the magnetic filter adsorption and filtration device, so that the magnetized impurities are separated from the common solid impurities and filtered, the service life of the filter element adsorption and filtration device is greatly prolonged, and the normal operation of the following processes is ensured.

When the mass content of water is less than 1 percent and the mass content of oxides and carbides is less than 0.75 percent, qualified purification treatment is carried out;

The atomizing separation is handled and is adopted firing equipment to heat waste oil, and waste oil after the heating gets into the atomizing through the atomizer and sprays, and the spray regime adopts hollow stereo set to seal, and the atomizing becomes the waste oil of tiny liquid drop, and the air jet system through hollow stereo set bottom upwards sprays the air current, and tiny liquid drop subsides downwards under the action of gravity, and the air jet system upwards sprays the air current to upwards stir the waste oil after the atomizing, the inside resonance device that is provided with of hollow stereo set, the waste oil high-speed vibration of tiny liquid drop under resonance device's the effect, the moisture come-up of gasification is heated, and oil drops and subsides formation liquid and converge at hollow stereo set bottom, thereby realizes waste oil degree of depth oil gas water separation.

Pumping out liquid oil at the bottom of the hollow three-dimensional equipment by using a vacuum pump, and feeding the liquid oil into a condenser for condensation treatment to obtain modified crude oil before rectification;

The rectification treatment adopts a closed melting furnace, the treated modified crude oil and the catalyst are respectively sent into the closed melting furnace, the waste oil as the raw material is gradually changed into gas from pasty substances due to the action of heating and the special catalyst, the gas molecules generated along with the increase of the temperature in the furnace are gradually increased, the molecules and the molecules, the molecules and the wall of the reactor, the molecules and the catalyst in an outlet reaction kettle collide with each other due to the continuous movement of the gas molecules, and then a part of small molecules enter an oil outlet pipeline through the cracking of the catalyst, and are separated, cooled and filtered to form the finished oil; the other part of macromolecules returns to the gasifying melting furnace to react again until all the macromolecules are cracked into oil liquid with different qualities through the catalyst.

wherein the temperature of the gas phase catalytic reforming is divided into three stages of 40-205 ℃, 205-;

The adsorption purification treatment is to send the liquid oil obtained after condensation into a fine filtration adsorption tower for fine filtration treatment, and the liquid oil obtained after fine filtration treatment is used as finished oil; the fine filtration adsorption tower adopts a clay fine filtration adsorption tower, and the clay fine filtration adsorption tower is a pure physical adsorption tower and can adsorb a certain amount of impurity particles in the waste oil, so that the color and acid value are changed.

The working principle of the invention is as follows:

the invention relates to a low-temperature pure physical treatment technology for waste oil, which adopts a pure physical mode to dehydrate, a solid impurity purification device is reasonably arranged, the purification is thorough, the replacement period is prolonged, a high-efficiency demulsification mode is used for deeply and thoroughly demulsifying, a water-in-oil state is removed, the index of a regenerated oil device reaches more than 95 percent of new oil, and a low-temperature, negative-pressure and micro-catalytic technology is used for rectification treatment, which is different from common thermal cracking rectification, and the traditional thermal cracking and micro-catalytic technology is characterized in that: the thermal cracking only uses high temperature to crack macromolecular hydrocarbon into micromolecular hydrocarbon; the micro-catalysis adopts low temperature and negative pressure, not only the cracking of macromolecules but also the structural change of hydrocarbons, such as: normal alkanes to isomeric alkanes, and the like. The catalyst adopted by the micro-catalytic system is a porous substance with strong adsorbability and contains Pt, Pd and the like. It can adsorb hydrocarbon, change the structure of hydrocarbon, and easily adsorb condensed ring aromatic hydrocarbon, olefin and other hydrocarbons, and can change the waste oil produced by industry and agriculture into diesel oil, lubricating oil and fuel oil which are urgently needed in life.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.