CN211079043U - Waste mineral oil regeneration recovery processing system - Google Patents
Waste mineral oil regeneration recovery processing system Download PDFInfo
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- CN211079043U CN211079043U CN201921616940.8U CN201921616940U CN211079043U CN 211079043 U CN211079043 U CN 211079043U CN 201921616940 U CN201921616940 U CN 201921616940U CN 211079043 U CN211079043 U CN 211079043U
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Abstract
The utility model relates to a waste mineral oil regeneration recovery processing system, including the flash column, flash column survey line jar, flash column overhead condenser, flash column top oil-water separator jar, raw oil/flash column side line oil heat exchanger, flash column side line water cooler, reaction feed heating furnace, the reactor, residual oil fractionating tower, residual oil overhead condenser, level four raw oil/residual oil heat exchanger, residual oil water cooler, wax oil fractionating tower, second grade raw oil/wax oil heat exchanger, wax oil water cooler, wax oil overhead condenser, lubricating oil fractionating tower, second grade raw oil/lubricating oil heat exchanger, lubricating oil water cooler, lubricating oil overhead condenser, machine oil fractionating tower, second grade raw oil/machine oil heat exchanger, machine oil water cooler, machine oil overhead condenser, fuel oil fractionating tower, raw oil/fuel oil heat exchanger, the heat exchanger of the oil, The system comprises a fuel oil water cooler, a fuel oil tower top condenser, a heat conducting oil furnace, a non-combustible gas buffer tank and a fuel oil tower top buffer tank. The utility model has the advantages that: the resources are reasonably recycled.
Description
Technical Field
The utility model relates to a waste mineral oil handles technical field, in particular to waste mineral oil regeneration recovery processing system.
Background
The waste mineral oil is mineral oil extracted and refined from petroleum, coal and oil shale, and changes the original physical and chemical properties due to the action of external factors in the processes of mining, processing and using, and can not be used continuously.
The waste mineral oil is a complex mixture composed of a plurality of substances, and the main components of the waste mineral oil comprise C15-C36 alkane, Polycyclic Aromatic Hydrocarbon (PAHs), olefin, phenol and the like. Its various components
Has certain toxic and harmful effects on human body. Therefore, once a large amount of the liquid enters the environment, serious environmental pollution is caused. In addition, the waste mineral oil can destroy the normal living environment of organisms, and cause biological dysfunction.
According to data reports, the base oil produced by adopting the hydrogenation process in China is less, and the yield of the conventional hydrogenated base oil is only about 600 million t/a. In the structure of the lubricating oil base oil, the base oil above HVI only accounts for about 56 percent, and the MVI product is not suitable for the requirement of upgrading and updating oil products. Along with the expansion of the market and the improvement of the quality, particularly after the requirement of multi-stage engine oil is increased, the requirements on high viscosity index and low volatility of the lubricating oil base oil are provided, and the current lubricating oil base oil product cannot meet the standard requirement of high-quality products. In addition, the waste mineral oil components are complex, and further investigation is required to obtain standard lubricant base oils, engine oils and fuel oils.
In view of the above, there is a need to provide a system for recycling lubricant base oil, engine oil and fuel oil from waste mineral oil.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a regeneration treatment system of lubricating oil base oil, machine oil and fuel oil of refining out standard from waste mineral oil.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a waste mineral oil regeneration recovery processing system which characterized in that: comprises a pretreatment system, a waste residue oil treatment system and a waste lubricating oil regeneration and recovery system,
the pretreatment system comprises a flash tower, a flash tower line measuring tank, a flash tower top condenser, a flash tower top oil-water separation tank, a raw oil/flash tower side line oil heat exchanger, a flash tower side line water cooler, a reaction feeding heating furnace, a reactor, a residual oil fractionating tower, a residual oil tower top condenser, a four-stage raw oil/residual oil heat exchanger and a residual oil water cooler;
a water/light component discharge pipeline A communicated with the flash tower is arranged in the center of the top end of the flash tower, and the other end of the water/light component discharge pipeline A is communicated with a condenser at the top of the flash tower; a light fuel oil discharge pipeline A and a fuel oil discharge pipeline A which are communicated with the flash tower are sequentially arranged at the side end of the upper part of the flash tower from top to bottom, the other end of the fuel oil discharge pipeline A is communicated with a flash tower measuring line tank, and a non-condensable gas outlet pipeline communicated with the flash tower measuring line tank is arranged at the center of the top end of the flash tower measuring line tank;
the flash tower line measuring tank is communicated with the raw oil/flash tower side line oil heat exchanger through a fuel oil discharge pipeline B, and a flash tower line measuring pump is arranged on the fuel oil discharge pipeline B in series; the raw oil/flash tower side line oil heat exchanger is also communicated with a fuel oil discharge pipeline C, and the fuel oil discharge pipeline C is serially connected with a flash tower side line water cooler; a raw oil discharge pipeline A and a raw oil feeding pipeline A which are communicated with the raw oil/flash tower side line oil heat exchanger are sequentially arranged at one side end of the raw oil/flash tower side line oil heat exchanger from top to bottom;
a heavy component discharge pipeline communicated with the flash tower is arranged in the center of the bottom end of the flash tower, the other end of the heavy component discharge pipeline is communicated with the reaction feeding heating furnace, and a flash tower bottom pump is also arranged on the heavy component discharge pipeline in series;
a saturated steam inlet pipeline communicated with the reaction feeding heating furnace is arranged on one side of the upper end of the reaction feeding heating furnace, a superheated steam outlet pipeline communicated with the reaction feeding heating furnace is arranged on the other side of the upper end of the reaction feeding heating furnace, and a flash tower bottom oil discharge pipeline communicated with the reaction feeding heating furnace is arranged on the reaction feeding heating furnace below the superheated steam outlet pipeline;
the top condenser of the flash tower is communicated with the top oil-water separation tank of the flash tower through a water/light component discharge pipeline B, the bottom of the top oil-water separation tank of the flash tower is also provided with a light fuel oil discharge pipeline B communicated with the top oil-water separation tank of the flash tower, the other end of the light fuel oil discharge pipeline B is communicated with a light fuel oil discharge pipeline A, and the light fuel oil discharge pipeline B is serially connected with a reaction tower product pump;
the bottom center of the reactor is communicated with a bottom oil discharge pipeline of the flash tower, the reactor is communicated with the residual oil fractionating tower through a residual oil discharge pipeline A, the top center of the residual oil fractionating tower is provided with a residual oil light component discharge pipeline communicated with the residual oil fractionating tower, and the other end of the residual oil light component discharge pipeline is communicated with a residual oil tower top condenser;
a residual oil tower top oil discharge pipeline communicated with the residual oil tower top condenser is arranged at the bottom end of the residual oil tower top condenser, and a raw oil discharge pipeline B and a raw oil feeding pipeline B communicated with the residual oil tower top condenser are sequentially arranged at the side end of the residual oil tower top condenser from top to bottom;
a residual oil heavy component discharge pipeline communicated with the residual oil fractionating tower is arranged in the center of the bottom end of the residual oil fractionating tower, the other end of the residual oil heavy component discharge pipeline is communicated with the four-stage raw oil/residual oil heat exchanger, and a residual oil tower bottom pump is further arranged on the residual oil heavy component discharge pipeline in series; a residual oil heavy component feeding pipeline communicated with the fourth-stage raw oil/residual oil heat exchanger is arranged at the bottom end of the fourth-stage raw oil/residual oil heat exchanger, the other end of the residual oil heavy component feeding pipeline is communicated with a residual oil water cooler, and a residual oil discharging pipeline B communicated with the residual oil water cooler is also arranged at the bottom end of the residual oil water cooler;
a raw oil discharge pipeline C and a raw oil feed pipeline C which are communicated with the four-stage raw oil/residual oil heat exchanger are also sequentially arranged at the side end of the four-stage raw oil/residual oil heat exchanger from top to bottom;
the waste residual oil treatment system comprises a wax oil fractionating tower, a secondary raw oil/wax oil heat exchanger, a wax oil water cooler, a wax oil tower top condenser, a lubricating oil fractionating tower, a secondary raw oil/lubricating oil heat exchanger, a lubricating oil water cooler and a lubricating oil tower top condenser;
the wax oil fractionating tower is communicated with a residual oil tower top oil discharge pipeline, a wax oil heavy component discharge pipeline communicated with the wax oil fractionating tower is arranged in the center of the bottom end of the wax oil fractionating tower, the other end of the wax oil heavy component discharge pipeline is communicated with the secondary raw oil/wax oil heat exchanger, and a wax oil tower bottom pump is arranged on the wax oil heavy component discharge pipeline in series;
a raw oil discharge pipeline D and a raw oil feeding pipeline D which are communicated with the secondary raw oil/wax oil heat exchanger are sequentially arranged at the side end of the secondary raw oil/wax oil heat exchanger from top to bottom; the bottom end of the secondary raw oil/wax oil heat exchanger is provided with a wax oil heavy component feeding pipeline communicated with the secondary raw oil/wax oil heat exchanger, the other end of the wax oil heavy component feeding pipeline is communicated with a wax oil water cooler, and the bottom end of the wax oil water cooler is also provided with a wax oil discharging pipeline communicated with the wax oil water cooler;
a wax oil light component discharging pipeline communicated with the wax oil fractionating tower is arranged in the center of the top end of the wax oil fractionating tower, and the other end of the wax oil light component discharging pipeline is communicated with a wax oil tower top condenser;
the bottom end of the wax oil tower top condenser is provided with a wax oil tower top oil discharge pipeline communicated with the wax oil tower top condenser, and the other end of the wax oil tower top oil discharge pipeline is communicated with the lubricating oil fractionating tower; a raw oil discharge pipeline E and a raw oil feeding pipeline E which are communicated with the wax oil tower top condenser are sequentially arranged at the side end of the wax oil tower top condenser from top to bottom, and the lubricating oil tower top condenser is serially connected to the raw oil feeding pipeline E;
a lubricating oil light component discharge pipeline communicated with the lubricating oil fractionating tower is arranged in the center of the top end of the lubricating oil fractionating tower, the other end of the lubricating oil light component discharge pipeline is communicated with a lubricating oil tower top condenser, and a lubricating oil tower top oil discharge pipeline communicated with the lubricating oil tower top condenser is further arranged at the bottom end of the lubricating oil tower top condenser;
a lubricating oil heavy component discharging pipeline communicated with the lubricating oil fractionating tower is arranged in the center of the bottom end of the lubricating oil fractionating tower, the other end of the lubricating oil heavy component discharging pipeline is communicated with the secondary raw oil/lubricating oil heat exchanger, and a lubricating oil tower bottom pump is further arranged on the lubricating oil heavy component discharging pipeline in series;
the bottom end of the secondary raw oil/lubricating oil heat exchanger is provided with a lubricating oil heavy component feeding pipeline communicated with the secondary raw oil/lubricating oil heat exchanger, the other end of the lubricating oil heavy component feeding pipeline is communicated with a lubricating oil water cooler, and the bottom end of the lubricating oil water cooler is also provided with a lubricating oil discharging pipeline communicated with the lubricating oil water cooler; a raw oil discharge pipeline F and a raw oil feed pipeline F which are communicated with the secondary raw oil/lubricating oil heat exchanger are sequentially arranged at the side end of the secondary raw oil/lubricating oil heat exchanger from top to bottom;
the waste lubricating oil regeneration and recovery system comprises an engine oil fractionating tower, a secondary raw oil/engine oil heat exchanger, an engine oil water cooler, an engine oil tower top condenser, a fuel oil fractionating tower, a raw oil/fuel oil heat exchanger, a fuel oil water cooler, a fuel oil tower top condenser, a heat-conducting oil furnace, a non-combustible gas buffer tank and a fuel oil tower top buffer tank;
the engine oil fractionating tower is communicated with an oil discharge pipeline at the top of the lubricating oil tower, an engine oil heavy component discharge pipeline communicated with the engine oil fractionating tower is arranged in the center of the bottom end of the engine oil fractionating tower, the other end of the engine oil heavy component discharge pipeline is communicated with the secondary raw oil/engine oil heat exchanger, and an engine oil tower bottom pump is arranged on the engine oil heavy component discharge pipeline in series;
a raw oil discharge pipeline G and a raw oil feeding pipeline G which are communicated with the secondary raw oil/engine oil heat exchanger are sequentially arranged at the side end of the secondary raw oil/engine oil heat exchanger from top to bottom, and the raw oil/fuel oil heat exchanger is serially arranged on the raw oil feeding pipeline G; the bottom end of the secondary raw oil/engine oil heat exchanger is provided with an engine oil heavy component feeding pipeline communicated with the secondary raw oil/engine oil heat exchanger, the other end of the engine oil heavy component feeding pipeline is communicated with an engine oil water cooler, and the bottom end of the engine oil water cooler is also provided with an engine oil discharging pipeline communicated with the engine oil water cooler;
the center of the top end of the engine oil fractionating tower is provided with an engine oil light component discharging pipeline communicated with the engine oil fractionating tower, and the other end of the engine oil light component discharging pipeline is communicated with an engine oil tower top condenser;
the bottom end of the engine oil tower top condenser is provided with an engine oil tower top oil discharge pipeline communicated with the engine oil tower top condenser, and the other end of the engine oil tower top oil discharge pipeline is communicated with a fuel oil fractionating tower; a raw oil discharge pipeline H and a raw oil feeding pipeline H which are communicated with the engine oil tower top condenser are sequentially arranged at the side end of the engine oil tower top condenser from top to bottom;
the top center of the fuel oil fractionating tower is provided with a fuel oil tower top discharging pipeline communicated with the fuel oil fractionating tower, the bottom center of the fuel oil fractionating tower is provided with a fuel oil heavy component discharging pipeline communicated with the fuel oil fractionating tower, the other end of the fuel oil heavy component discharging pipeline is communicated with the raw oil/fuel oil heat exchanger, and the fuel oil heavy component discharging pipeline is also provided with a fuel oil tower bottom pump in series;
the bottom end of the raw oil/fuel oil heat exchanger is provided with a fuel oil heavy component feeding pipeline communicated with the secondary raw oil/fuel oil heat exchanger, the other end of the fuel oil heavy component feeding pipeline is communicated with a fuel oil water cooler, and the bottom end of the fuel oil water cooler is also provided with a fuel oil discharging pipeline communicated with the fuel oil water cooler;
the condenser at the top of the fuel oil tower is communicated with a discharge pipeline at the top of the fuel oil tower, the bottom end of the condenser at the top of the fuel oil tower is provided with a discharge pipeline of the heavy component of the light fuel oil which is communicated with the condenser at the top of the fuel oil tower, and the other end of the discharge pipeline of the heavy component of the light fuel oil is communicated with the heat-conducting oil furnace;
the center of the top end of the heat-conducting oil furnace is provided with a non-combustible gas outlet pipeline A communicated with the heat-conducting oil furnace, the other end of the non-combustible gas outlet pipeline A is communicated with a non-combustible gas buffer tank, and the center of the top end of the non-combustible gas buffer tank is provided with a non-combustible gas outlet pipeline B communicated with the non-combustible gas buffer tank;
the center of the bottom end of the heat-conducting oil furnace is provided with a light fuel oil heavy component feeding pipeline communicated with the heat-conducting oil furnace, and the other end of the light fuel oil heavy component feeding pipeline is communicated with a fuel oil tower top buffer tank; the bottom center of the fuel oil tower top buffer tank is provided with a light fuel oil discharge pipeline communicated with the fuel oil tower top buffer tank, and a light fuel oil discharge pump is arranged on the light fuel oil discharge pipeline in series.
Furthermore, two flash evaporation tower top condensers are arranged on the water/light component discharge pipeline A in parallel.
Furthermore, two reactors are arranged in parallel between the bottom oil discharge pipeline of the flash tower and the residual oil discharge pipeline A.
Furthermore, two residual oil tower top condensers are arranged on a residual oil light component discharge pipeline in parallel.
Furthermore, two residual oil water coolers are arranged on the residual oil discharge pipeline B in parallel.
Furthermore, the wax oil water cooler has two, and the parallelly connected setting is on wax oil ejection of compact pipeline.
Furthermore, there are two lubricating oil tower top condensers, and the two condensers are arranged on the raw oil feeding pipeline E in parallel.
Furthermore, the engine oil tower top condensers are two and are arranged on an engine oil light component discharge pipeline in parallel.
Furthermore, the number of the fuel oil tower top condensers is two, and the two condensers are arranged on a discharge pipeline at the top of the fuel oil tower in parallel.
The utility model has the advantages that:
(1) the utility model discloses waste mineral oil regeneration recovery processing system sends the waste mineral oil that the sediment divide into to the flash column and carries out dehydration pretreatment, and water and light in the waste mineral oil evaporate from the top of the tower, get into the oil-water separation jar after the condenser condensation, and the water layer gets into the sewage treatment station after the oil-water separation and deals with, and noncondensable gas gets into the vacuum pump and discharges after leading to the combustion of heat oil boiler, and the oil reservoir is through the heat exchanger heat transfer, and the gasification back gets into the water cooler, obtains fuel oil and stores; the heavy components from the bottom of the flash tower are pumped into a reaction feeding heating furnace for heating, the heavy components are gasified and then enter a residual oil fractionating tower, the materials enter a residual oil tower top condenser after water and a small amount of base oil volatile components are evaporated from the top of the fractionating tower, residual oil tower top oil is obtained, the heavy components in the materials are sequentially pumped into a heat exchanger and a residual oil water cooler from the bottom of the fractionating tower for processing, and residual oil is obtained and stored;
the waste residue oil enters a wax oil fractionating tower, the material enters a wax oil tower top condenser after water and a small amount of base oil volatile components are evaporated from the top of the fractionating tower to obtain wax oil tower top oil, and heavy components in the material are sequentially pumped into a heat exchanger and a wax oil water cooler from the tower bottom of the fractionating tower to be treated to obtain wax oil for storage; the wax oil tower top oil enters a lubricating oil fractionating tower, the material enters a lubricating oil tower top condenser after water and a small amount of base oil volatile components are evaporated from the top of the fractionating tower to obtain lubricating oil tower top oil, and heavy components in the material are sequentially pumped into a heat exchanger and a lubricating oil water cooler from the tower bottom of the fractionating tower to be treated to obtain lubricating oil for storage;
the waste lubricating oil enters an engine oil fractionating tower, the materials enter an engine oil tower top condenser after water and a small amount of volatile components of the base oil are evaporated from the top of the fractionating tower, engine oil tower top oil is obtained, heavy components in the materials are sequentially pumped into a heat exchanger and an engine oil water cooler from the bottom of the fractionating tower to be processed, and the engine oil is obtained and stored; the top oil of the machine oil tower enters a fuel oil fractionating tower, the materials enter a fuel oil tower top condenser, a heat conducting oil furnace and a fuel oil tower top buffer tank in sequence after water and a small amount of base oil volatile components are evaporated from the top of the fractionating tower, so that light fuel oil is obtained, and heavy components in the materials are pumped into a heat exchanger and a fuel oil water cooler in sequence from the bottom of the fractionating tower to be processed, so that the fuel oil is obtained and stored; part of base oil can be recycled, effective resources are recycled, and waste oil is not generated;
(2) the utility model discloses waste mineral oil regeneration recovery processing system, wherein, flash distillation overhead condenser, reactor, residual oil overhead condenser, residual oil water cooler, wax oil water cooler, lubricating oil overhead condenser, machine oil overhead condenser and fuel oil overhead condenser are provided with a plurality ofly, and a plurality of devices are handled in the lump, can improve waste mineral oil regeneration recovery processing system's treatment effeciency greatly.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 and 2 are schematic structural views of a pretreatment system in the waste mineral oil recycling treatment system.
FIG. 3 is a schematic structural diagram of a waste oil treatment system in the waste mineral oil recycling treatment system.
Fig. 4 and 5 are schematic structural views of a used lubricating oil recycling system in the used mineral oil recycling system.
Detailed Description
The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.
Examples
This embodiment mineral oil waste regeneration recovery processing system, including pretreatment systems, waste residue oil processing system and useless lubricating oil regeneration recovery system.
The specific structure of the pretreatment system, as shown in fig. 1 and 2, includes a flash column 1, a flash column line tank 2, a flash column overhead condenser 3, a flash column overhead oil-water separation tank 4, a raw oil/flash column side line oil heat exchanger 5, a flash column side line water cooler 6, a reaction feed heating furnace 7, a reactor 8, a residual oil fractionating column 9, a residual oil overhead condenser 10, a four-stage raw oil/residual oil heat exchanger 11, and a residual oil water cooler 12.
The center of the top end of the flash tower 1 is provided with a water/light component discharge pipeline A communicated with the flash tower 1, the other end of the water/light component discharge pipeline A is communicated with a flash tower top condenser 3, and two flash tower top condensers 3 are arranged on the water/light component discharge pipeline A in parallel; the side top-down of flash column 1 upper portion has set gradually light fuel oil ejection of compact pipeline A and the fuel oil ejection of compact pipeline A with flash column 1 intercommunication, and the other end and the flash column survey line jar 2 intercommunication of fuel oil ejection of compact pipeline A, and the top center of this flash column survey line jar 2 is provided with the noncondensable gas pipeline of giving vent to anger with flash column survey line jar 2 intercommunication.
The flash tower measuring tank 2 is communicated with the raw oil/flash tower side line oil heat exchanger 5 through a fuel oil discharge pipeline B, and a flash tower measuring pump 13 is arranged on the fuel oil discharge pipeline B in series; the raw oil/flash tower side line oil heat exchanger 5 is also communicated with a fuel oil discharge pipeline C, and the fuel oil discharge pipeline C is serially connected with a flash tower side line water cooler 6; a raw oil discharge pipeline A and a raw oil feeding pipeline A which are communicated with the raw oil/flash tower side line oil heat exchanger 5 are sequentially arranged at one side end of the raw oil/flash tower side line oil heat exchanger 5 from top to bottom.
The bottom center of the flash tower 1 is provided with a heavy component discharge pipeline communicated with the flash tower 1, the other end of the heavy component discharge pipeline is communicated with the reaction feeding heating furnace 7, and the heavy component discharge pipeline is also provided with a flash tower bottom pump 14 in series.
A saturated steam inlet pipeline communicated with the reaction feeding heating furnace 7 is arranged on one side of the upper end of the reaction feeding heating furnace 7, an superheated steam outlet pipeline communicated with the reaction feeding heating furnace 7 is arranged on the other side of the upper end of the reaction feeding heating furnace 7, and a flash tower bottom oil outlet pipeline communicated with the reaction feeding heating furnace 7 is arranged on the reaction feeding heating furnace 7 below the superheated steam outlet pipeline.
The condenser 3 at the top of the flash tower is communicated with the oil-water separating tank 4 at the top of the flash tower through a water/light component discharging pipeline B, the light fuel oil discharging pipeline B communicated with the oil-water separating tank 4 at the top of the flash tower is further arranged at the bottom of the oil-water separating tank 4 at the top of the flash tower, the other end of the light fuel oil discharging pipeline B is communicated with the light fuel oil discharging pipeline A, and a reaction tower product pump 15 is arranged on the light fuel oil discharging pipeline B in series.
The center of the bottom end of the reactor 8 is communicated with a bottom oil discharge pipeline of the flash tower, the reactor 8 is communicated with a residual oil fractionating tower 9 through a residual oil discharge pipeline A, and the number of the reactors 8 is two and is arranged between the bottom oil discharge pipeline of the flash tower and the residual oil discharge pipeline A in parallel; a residual oil light component discharge pipeline communicated with the residual oil fractionating tower 9 is arranged in the center of the top end of the residual oil fractionating tower 9, and the other end of the residual oil light component discharge pipeline is communicated with a residual oil tower top condenser 10; two residual oil tower top condensers 10 are arranged on a residual oil light component discharge pipeline in parallel.
A residual oil tower top oil discharge pipeline communicated with the residual oil tower top condenser 10 is arranged at the bottom end of the residual oil tower top condenser 10, and a raw oil discharge pipeline B and a raw oil feeding pipeline B communicated with the residual oil tower top condenser 10 are sequentially arranged at the side end of the residual oil tower top condenser 10 from top to bottom.
A residual oil heavy component discharge pipeline communicated with the residual oil fractionating tower 9 is arranged in the center of the bottom end of the residual oil fractionating tower 9, the other end of the residual oil heavy component discharge pipeline is communicated with the four-stage raw oil/residual oil heat exchanger 11, and a residual oil tower bottom pump 16 is further arranged on the residual oil heavy component discharge pipeline in series; a residual oil heavy component feeding pipeline communicated with the fourth-stage raw oil/residual oil heat exchanger 11 is arranged at the bottom end of the fourth-stage raw oil/residual oil heat exchanger 11, the other end of the residual oil heavy component feeding pipeline is communicated with a residual oil water cooler 12, and a residual oil discharging pipeline B communicated with the residual oil water cooler 12 is also arranged at the bottom end of the residual oil water cooler 12; the residual oil water coolers 12 are arranged on the residual oil discharge pipeline B in parallel.
A raw oil discharge pipeline C and a raw oil feed pipeline C which are communicated with the four-stage raw oil/residual oil heat exchanger 11 are also sequentially arranged at the side end of the four-stage raw oil/residual oil heat exchanger 11 from top to bottom.
The waste residual oil treatment system, as shown in fig. 3, includes a wax oil fractionating tower 17, a secondary raw oil/wax oil heat exchanger 18, a wax oil water cooler 19, a wax oil overhead condenser 20, a lubricating oil fractionating tower 21, a secondary raw oil/lubricating oil heat exchanger 22, a lubricating oil water cooler 23, and a lubricating oil overhead condenser 24.
The middle part of the side end of the wax oil fractionating tower 17 is communicated with the residual oil tower top oil discharging pipeline, the bottom center of the wax oil fractionating tower 17 is provided with a wax oil heavy component discharging pipeline communicated with the wax oil fractionating tower 17, the other end of the wax oil heavy component discharging pipeline is communicated with the secondary raw oil/wax oil heat exchanger 18, and a wax oil tower bottom pump 25 is connected in series on the wax oil heavy component discharging pipeline.
A raw oil discharge pipeline D and a raw oil feeding pipeline D which are communicated with the secondary raw oil/wax oil heat exchanger 18 are sequentially arranged at the side end of the secondary raw oil/wax oil heat exchanger 18 from top to bottom; a wax oil heavy component feeding pipeline communicated with the secondary raw oil/wax oil heat exchanger 18 is arranged at the bottom end of the secondary raw oil/wax oil heat exchanger 18, the other end of the wax oil heavy component feeding pipeline is communicated with a wax oil water cooler 19, and a wax oil discharging pipeline communicated with the wax oil water cooler 19 is also arranged at the bottom end of the wax oil water cooler 19; two wax oil water coolers 19 are arranged on the wax oil discharging pipeline in parallel.
The top center of the wax oil fractionating tower 17 is provided with a wax oil light component discharging pipeline communicated with the wax oil fractionating tower 17, and the other end of the wax oil light component discharging pipeline is communicated with a wax oil tower top condenser 20.
A wax oil tower top oil discharge pipeline communicated with the wax oil tower top condenser 20 is arranged at the bottom end of the wax oil tower top condenser 20, and the other end of the wax oil tower top oil discharge pipeline is communicated with a lubricating oil fractionating tower 21; a raw oil discharge pipeline E and a raw oil feeding pipeline E which are communicated with the wax oil tower top condenser 20 are sequentially arranged at the side end of the wax oil tower top condenser 20 from top to bottom, and a lubricating oil tower top condenser 24 is serially arranged on the raw oil feeding pipeline E; two lubricating oil tower top condensers 24 are arranged on the raw oil feeding pipeline E in parallel.
The top center of the lubricating oil fractionating tower 21 is provided with a lubricating oil light component discharging pipeline communicated with the lubricating oil fractionating tower 21, the other end of the lubricating oil light component discharging pipeline is communicated with a lubricating oil tower top condenser 24, and the bottom end of the lubricating oil tower top condenser 24 is also provided with a lubricating oil tower top oil discharging pipeline communicated with the lubricating oil tower top condenser 24.
A lubricating oil heavy component discharging pipeline communicated with the lubricating oil fractionating tower 21 is arranged at the center of the bottom end of the lubricating oil fractionating tower 21, the other end of the lubricating oil heavy component discharging pipeline is communicated with the secondary raw oil/lubricating oil heat exchanger 22, and a lubricating oil tower bottom pump 26 is further arranged on the lubricating oil heavy component discharging pipeline in series.
A lubricating oil heavy component feeding pipeline communicated with the secondary raw oil/lubricating oil heat exchanger 22 is arranged at the bottom end of the secondary raw oil/lubricating oil heat exchanger 22, the other end of the lubricating oil heavy component feeding pipeline is communicated with a lubricating oil water cooler 23, and a lubricating oil discharging pipeline communicated with the lubricating oil water cooler 23 is also arranged at the bottom end of the lubricating oil water cooler 23; a raw oil discharge pipeline F and a raw oil feed pipeline F which are communicated with the secondary raw oil/lubricating oil heat exchanger 22 are sequentially arranged at the side end of the secondary raw oil/lubricating oil heat exchanger 22 from top to bottom.
The system for regenerating and recovering the waste lubricating oil, as shown in fig. 4 and 5, includes an oil fractionating tower 27, a secondary raw oil/oil heat exchanger 28, an oil water cooler 29, an oil tower top condenser 30, a fuel oil fractionating tower 31, a raw oil/fuel oil heat exchanger 32, a fuel oil water cooler 33, a fuel oil tower top condenser 34, a heat transfer oil furnace 35, a non-combustible gas buffer tank 36 and a fuel oil tower top buffer tank 37.
The engine oil fractionating tower 27 is communicated with an oil feeding pipeline at the top of the lubricating oil tower, an engine oil heavy component discharging pipeline communicated with the engine oil fractionating tower 27 is arranged at the center of the bottom end of the engine oil fractionating tower 27, the other end of the engine oil heavy component discharging pipeline is communicated with the secondary raw oil/engine oil heat exchanger 28, and an engine oil tower bottom pump 38 is arranged on the engine oil heavy component discharging pipeline in series.
A raw oil discharge pipeline G and a raw oil feed pipeline G which are communicated with the secondary raw oil/engine oil heat exchanger 28 are sequentially arranged at the side end of the secondary raw oil/engine oil heat exchanger 28 from top to bottom, and the raw oil/fuel oil heat exchanger 32 is serially arranged on the raw oil feed pipeline G; the bottom end of the secondary raw oil/engine oil heat exchanger 28 is provided with an engine oil heavy component feeding pipeline communicated with the secondary raw oil/engine oil heat exchanger 28, the other end of the engine oil heavy component feeding pipeline is communicated with an engine oil water cooler 29, and the bottom end of the engine oil water cooler 29 is also provided with an engine oil discharging pipeline communicated with the engine oil water cooler 29.
The center of the top end of the engine oil fractionating tower 27 is provided with an engine oil light component discharging pipeline communicated with the engine oil fractionating tower 27, and the other end of the engine oil light component discharging pipeline is communicated with an engine oil tower top condenser 30; the engine oil tower top condensers 30 are arranged on the engine oil light component discharging pipeline in parallel.
The bottom end of the engine oil tower top condenser 30 is provided with an engine oil tower top oil discharge pipeline communicated with the engine oil tower top condenser 30, and the other end of the engine oil tower top oil discharge pipeline is communicated with a fuel oil fractionating tower 31; a raw oil discharge pipeline H and a raw oil feeding pipeline H which are communicated with the engine oil tower top condenser 30 are sequentially arranged at the side end of the engine oil tower top condenser 30 from top to bottom.
The top center of the fuel oil fractionating tower 31 is provided with a fuel oil tower top discharge pipeline communicated with the fuel oil fractionating tower 31, the bottom center of the fuel oil fractionating tower 31 is provided with a fuel oil heavy component discharge pipeline communicated with the fuel oil fractionating tower 31, the other end of the fuel oil heavy component discharge pipeline is communicated with the raw oil/fuel oil heat exchanger 32, and the fuel oil heavy component discharge pipeline is also provided with a fuel oil tower bottom pump 39 in series.
The bottom end of the raw oil/fuel oil heat exchanger 32 is provided with a fuel oil heavy component feeding pipeline communicated with the raw oil/fuel oil heat exchanger 32, the other end of the fuel oil heavy component feeding pipeline is communicated with a fuel oil water cooler 33, and the bottom end of the fuel oil water cooler 33 is also provided with a fuel oil discharging pipeline communicated with the fuel oil water cooler 33.
The fuel oil tower top condensers 34 are communicated with a fuel oil tower top discharge pipeline, and two fuel oil tower top condensers 34 are arranged on the fuel oil tower top discharge pipeline in parallel; the bottom end of the fuel oil tower top condenser 34 is provided with a light fuel oil heavy component discharging pipeline communicated with the fuel oil tower top condenser 34, and the other end of the light fuel oil heavy component discharging pipeline is communicated with the heat conducting oil furnace 35.
The top center of the heat conduction oil furnace 35 is provided with a non-combustible gas outlet pipeline A communicated with the heat conduction oil furnace 35, the other end of the non-combustible gas outlet pipeline A is communicated with a non-combustible gas buffer tank 36, and the top center of the non-combustible gas buffer tank 36 is provided with a non-combustible gas outlet pipeline B communicated with the non-combustible gas buffer tank 36.
The center of the bottom end of the heat-conducting oil furnace 35 is provided with a light fuel oil heavy component feeding pipeline communicated with the heat-conducting oil furnace 35, and the other end of the light fuel oil heavy component feeding pipeline is communicated with a fuel oil tower top buffer tank 37; the bottom center of the fuel oil tower top buffer tank 37 is provided with a light fuel oil discharging pipeline communicated with the fuel oil tower top buffer tank 37, and the light fuel oil discharging pipeline is provided with a light fuel oil discharging pump 40 in series.
In the waste mineral oil regeneration pretreatment system, the precipitated waste mineral oil is sent to a flash tower 1 for dehydration pretreatment, water and light in the waste mineral oil are evaporated from the top of the tower and condensed by a condenser and then enter an oil-water separation tank, a water layer after oil-water separation enters a sewage treatment station for treatment, non-condensable gas enters a vacuum pump to be pumped to a heat-conducting oil boiler for combustion and then is discharged, an oil layer exchanges heat by a heat exchanger, and the gasified waste mineral oil enters a water cooler to obtain fuel oil for storage; and (2) pumping heavy components from the bottom of the flash tower 1 into a reaction feeding heating furnace for heating, gasifying, and then feeding the heavy components into a residual oil fractionating tower, evaporating water and a small amount of base oil volatile components from the top of the fractionating tower, feeding the evaporated material into a residual oil tower top condenser to obtain residual oil tower top oil, and sequentially pumping the heavy components in the material from the bottom of the fractionating tower into a heat exchanger and a residual oil water cooler for processing to obtain residual oil for storage.
Waste residual oil enters a wax oil fractionating tower 17, materials enter a wax oil tower top condenser 20 after water and a small amount of base oil volatile components are evaporated from the top of the fractionating tower to obtain wax oil tower top oil, and heavy components in the materials are sequentially pumped into a heat exchanger and a wax oil water cooler 19 from the bottom of the fractionating tower to be treated to obtain wax oil for storage; the wax oil tower top oil enters a lubricating oil fractionating tower 21, the material enters a lubricating oil tower top condenser 24 after water and a small amount of base oil volatile components are evaporated from the top of the fractionating tower, the lubricating oil tower top oil is obtained, heavy components in the material are sequentially pumped into a heat exchanger and a lubricating oil water cooler 23 from the bottom of the fractionating tower to be treated, and the lubricating oil is obtained and stored.
The waste lubricating oil enters an engine oil fractionating tower 27, the material enters an engine oil tower top condenser 30 after water and a small amount of volatile components of base oil are evaporated from the top of the fractionating tower, engine oil tower top oil is obtained, and heavy components in the material are sequentially pumped into a heat exchanger and an engine oil water cooler 29 from the bottom of the fractionating tower to be processed, and engine oil is obtained and stored; the top oil of the machine oil tower enters a fuel oil fractionating tower 31, the materials enter a fuel oil tower top condenser 34, a heat conducting oil furnace 35 and a fuel oil tower top buffer tank 37 in sequence after water and a small amount of base oil volatile components are evaporated from the top of the fractionating tower, so as to obtain light fuel oil, and heavy components in the materials are pumped into a heat exchanger and a fuel oil water cooler 33 in sequence from the bottom of the fractionating tower to be processed, so as to obtain fuel oil for storage; can recycle part of the base oil, recycle effective resources and avoid waste oil.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a waste mineral oil regeneration recovery processing system which characterized in that: comprises a pretreatment system, a waste residue oil treatment system and a waste lubricating oil regeneration and recovery system,
the pretreatment system comprises a flash tower, a flash tower line measuring tank, a flash tower top condenser, a flash tower top oil-water separation tank, a raw oil/flash tower side line oil heat exchanger, a flash tower side line water cooler, a reaction feeding heating furnace, a reactor, a residual oil fractionating tower, a residual oil tower top condenser, a four-stage raw oil/residual oil heat exchanger and a residual oil water cooler;
a water/light component discharge pipeline A communicated with the flash tower is arranged in the center of the top end of the flash tower, and the other end of the water/light component discharge pipeline A is communicated with a condenser at the top of the flash tower; a light fuel oil discharge pipeline A and a fuel oil discharge pipeline A which are communicated with the flash tower are sequentially arranged at the side end of the upper part of the flash tower from top to bottom, the other end of the fuel oil discharge pipeline A is communicated with a flash tower measuring line tank, and a non-condensable gas outlet pipeline communicated with the flash tower measuring line tank is arranged at the center of the top end of the flash tower measuring line tank;
the flash tower line measuring tank is communicated with the raw oil/flash tower side line oil heat exchanger through a fuel oil discharge pipeline B, and a flash tower line measuring pump is arranged on the fuel oil discharge pipeline B in series; the raw oil/flash tower side line oil heat exchanger is also communicated with a fuel oil discharge pipeline C, and the fuel oil discharge pipeline C is serially connected with a flash tower side line water cooler; a raw oil discharge pipeline A and a raw oil feeding pipeline A which are communicated with the raw oil/flash tower side line oil heat exchanger are sequentially arranged at one side end of the raw oil/flash tower side line oil heat exchanger from top to bottom;
a heavy component discharge pipeline communicated with the flash tower is arranged in the center of the bottom end of the flash tower, the other end of the heavy component discharge pipeline is communicated with the reaction feeding heating furnace, and a flash tower bottom pump is also arranged on the heavy component discharge pipeline in series;
a saturated steam inlet pipeline communicated with the reaction feeding heating furnace is arranged on one side of the upper end of the reaction feeding heating furnace, a superheated steam outlet pipeline communicated with the reaction feeding heating furnace is arranged on the other side of the upper end of the reaction feeding heating furnace, and a flash tower bottom oil discharge pipeline communicated with the reaction feeding heating furnace is arranged on the reaction feeding heating furnace below the superheated steam outlet pipeline;
the top condenser of the flash tower is communicated with the top oil-water separation tank of the flash tower through a water/light component discharge pipeline B, the bottom of the top oil-water separation tank of the flash tower is also provided with a light fuel oil discharge pipeline B communicated with the top oil-water separation tank of the flash tower, the other end of the light fuel oil discharge pipeline B is communicated with a light fuel oil discharge pipeline A, and the light fuel oil discharge pipeline B is serially connected with a reaction tower product pump;
the bottom center of the reactor is communicated with a bottom oil discharge pipeline of the flash tower, the reactor is communicated with the residual oil fractionating tower through a residual oil discharge pipeline A, the top center of the residual oil fractionating tower is provided with a residual oil light component discharge pipeline communicated with the residual oil fractionating tower, and the other end of the residual oil light component discharge pipeline is communicated with a residual oil tower top condenser;
a residual oil tower top oil discharge pipeline communicated with the residual oil tower top condenser is arranged at the bottom end of the residual oil tower top condenser, and a raw oil discharge pipeline B and a raw oil feeding pipeline B communicated with the residual oil tower top condenser are sequentially arranged at the side end of the residual oil tower top condenser from top to bottom;
a residual oil heavy component discharge pipeline communicated with the residual oil fractionating tower is arranged in the center of the bottom end of the residual oil fractionating tower, the other end of the residual oil heavy component discharge pipeline is communicated with the four-stage raw oil/residual oil heat exchanger, and a residual oil tower bottom pump is further arranged on the residual oil heavy component discharge pipeline in series; a residual oil heavy component feeding pipeline communicated with the fourth-stage raw oil/residual oil heat exchanger is arranged at the bottom end of the fourth-stage raw oil/residual oil heat exchanger, the other end of the residual oil heavy component feeding pipeline is communicated with a residual oil water cooler, and a residual oil discharging pipeline B communicated with the residual oil water cooler is also arranged at the bottom end of the residual oil water cooler;
a raw oil discharge pipeline C and a raw oil feed pipeline C which are communicated with the four-stage raw oil/residual oil heat exchanger are also sequentially arranged at the side end of the four-stage raw oil/residual oil heat exchanger from top to bottom;
the waste residual oil treatment system comprises a wax oil fractionating tower, a secondary raw oil/wax oil heat exchanger, a wax oil water cooler, a wax oil tower top condenser, a lubricating oil fractionating tower, a secondary raw oil/lubricating oil heat exchanger, a lubricating oil water cooler and a lubricating oil tower top condenser;
the wax oil fractionating tower is communicated with a residual oil tower top oil discharge pipeline, a wax oil heavy component discharge pipeline communicated with the wax oil fractionating tower is arranged in the center of the bottom end of the wax oil fractionating tower, the other end of the wax oil heavy component discharge pipeline is communicated with the secondary raw oil/wax oil heat exchanger, and a wax oil tower bottom pump is arranged on the wax oil heavy component discharge pipeline in series;
a raw oil discharge pipeline D and a raw oil feeding pipeline D which are communicated with the secondary raw oil/wax oil heat exchanger are sequentially arranged at the side end of the secondary raw oil/wax oil heat exchanger from top to bottom; the bottom end of the secondary raw oil/wax oil heat exchanger is provided with a wax oil heavy component feeding pipeline communicated with the secondary raw oil/wax oil heat exchanger, the other end of the wax oil heavy component feeding pipeline is communicated with a wax oil water cooler, and the bottom end of the wax oil water cooler is also provided with a wax oil discharging pipeline communicated with the wax oil water cooler;
a wax oil light component discharging pipeline communicated with the wax oil fractionating tower is arranged in the center of the top end of the wax oil fractionating tower, and the other end of the wax oil light component discharging pipeline is communicated with a wax oil tower top condenser;
the bottom end of the wax oil tower top condenser is provided with a wax oil tower top oil discharge pipeline communicated with the wax oil tower top condenser, and the other end of the wax oil tower top oil discharge pipeline is communicated with the lubricating oil fractionating tower; a raw oil discharge pipeline E and a raw oil feeding pipeline E which are communicated with the wax oil tower top condenser are sequentially arranged at the side end of the wax oil tower top condenser from top to bottom, and the lubricating oil tower top condenser is serially connected to the raw oil feeding pipeline E;
a lubricating oil light component discharge pipeline communicated with the lubricating oil fractionating tower is arranged in the center of the top end of the lubricating oil fractionating tower, the other end of the lubricating oil light component discharge pipeline is communicated with a lubricating oil tower top condenser, and a lubricating oil tower top oil discharge pipeline communicated with the lubricating oil tower top condenser is further arranged at the bottom end of the lubricating oil tower top condenser;
a lubricating oil heavy component discharging pipeline communicated with the lubricating oil fractionating tower is arranged in the center of the bottom end of the lubricating oil fractionating tower, the other end of the lubricating oil heavy component discharging pipeline is communicated with the secondary raw oil/lubricating oil heat exchanger, and a lubricating oil tower bottom pump is further arranged on the lubricating oil heavy component discharging pipeline in series;
the bottom end of the secondary raw oil/lubricating oil heat exchanger is provided with a lubricating oil heavy component feeding pipeline communicated with the secondary raw oil/lubricating oil heat exchanger, the other end of the lubricating oil heavy component feeding pipeline is communicated with a lubricating oil water cooler, and the bottom end of the lubricating oil water cooler is also provided with a lubricating oil discharging pipeline communicated with the lubricating oil water cooler; a raw oil discharge pipeline F and a raw oil feed pipeline F which are communicated with the secondary raw oil/lubricating oil heat exchanger are sequentially arranged at the side end of the secondary raw oil/lubricating oil heat exchanger from top to bottom;
the waste lubricating oil regeneration and recovery system comprises an engine oil fractionating tower, a secondary raw oil/engine oil heat exchanger, an engine oil water cooler, an engine oil tower top condenser, a fuel oil fractionating tower, a raw oil/fuel oil heat exchanger, a fuel oil water cooler, a fuel oil tower top condenser, a heat-conducting oil furnace, a non-combustible gas buffer tank and a fuel oil tower top buffer tank;
the engine oil fractionating tower is communicated with an oil discharge pipeline at the top of the lubricating oil tower, an engine oil heavy component discharge pipeline communicated with the engine oil fractionating tower is arranged in the center of the bottom end of the engine oil fractionating tower, the other end of the engine oil heavy component discharge pipeline is communicated with the secondary raw oil/engine oil heat exchanger, and an engine oil tower bottom pump is arranged on the engine oil heavy component discharge pipeline in series;
a raw oil discharge pipeline G and a raw oil feeding pipeline G which are communicated with the secondary raw oil/engine oil heat exchanger are sequentially arranged at the side end of the secondary raw oil/engine oil heat exchanger from top to bottom, and the raw oil/fuel oil heat exchanger is serially arranged on the raw oil feeding pipeline G; the bottom end of the secondary raw oil/engine oil heat exchanger is provided with an engine oil heavy component feeding pipeline communicated with the secondary raw oil/engine oil heat exchanger, the other end of the engine oil heavy component feeding pipeline is communicated with an engine oil water cooler, and the bottom end of the engine oil water cooler is also provided with an engine oil discharging pipeline communicated with the engine oil water cooler;
the center of the top end of the engine oil fractionating tower is provided with an engine oil light component discharging pipeline communicated with the engine oil fractionating tower, and the other end of the engine oil light component discharging pipeline is communicated with an engine oil tower top condenser;
the bottom end of the engine oil tower top condenser is provided with an engine oil tower top oil discharge pipeline communicated with the engine oil tower top condenser, and the other end of the engine oil tower top oil discharge pipeline is communicated with a fuel oil fractionating tower; a raw oil discharge pipeline H and a raw oil feeding pipeline H which are communicated with the engine oil tower top condenser are sequentially arranged at the side end of the engine oil tower top condenser from top to bottom;
the top center of the fuel oil fractionating tower is provided with a fuel oil tower top discharging pipeline communicated with the fuel oil fractionating tower, the bottom center of the fuel oil fractionating tower is provided with a fuel oil heavy component discharging pipeline communicated with the fuel oil fractionating tower, the other end of the fuel oil heavy component discharging pipeline is communicated with the raw oil/fuel oil heat exchanger, and the fuel oil heavy component discharging pipeline is also provided with a fuel oil tower bottom pump in series;
the bottom end of the raw oil/fuel oil heat exchanger is provided with a fuel oil heavy component feeding pipeline communicated with the secondary raw oil/fuel oil heat exchanger, the other end of the fuel oil heavy component feeding pipeline is communicated with a fuel oil water cooler, and the bottom end of the fuel oil water cooler is also provided with a fuel oil discharging pipeline communicated with the fuel oil water cooler;
the condenser at the top of the fuel oil tower is communicated with a discharge pipeline at the top of the fuel oil tower, the bottom end of the condenser at the top of the fuel oil tower is provided with a discharge pipeline of the heavy component of the light fuel oil which is communicated with the condenser at the top of the fuel oil tower, and the other end of the discharge pipeline of the heavy component of the light fuel oil is communicated with the heat-conducting oil furnace;
the center of the top end of the heat-conducting oil furnace is provided with a non-combustible gas outlet pipeline A communicated with the heat-conducting oil furnace, the other end of the non-combustible gas outlet pipeline A is communicated with a non-combustible gas buffer tank, and the center of the top end of the non-combustible gas buffer tank is provided with a non-combustible gas outlet pipeline B communicated with the non-combustible gas buffer tank;
the center of the bottom end of the heat-conducting oil furnace is provided with a light fuel oil heavy component feeding pipeline communicated with the heat-conducting oil furnace, and the other end of the light fuel oil heavy component feeding pipeline is communicated with a fuel oil tower top buffer tank; the bottom center of the fuel oil tower top buffer tank is provided with a light fuel oil discharge pipeline communicated with the fuel oil tower top buffer tank, and a light fuel oil discharge pump is arranged on the light fuel oil discharge pipeline in series.
2. The waste mineral oil recycling system of claim 1, wherein: the flash tower top condensers are arranged on the water/light component discharge pipeline A in parallel.
3. The waste mineral oil recycling system of claim 1, wherein: the two reactors are arranged in parallel between the bottom oil discharge pipeline of the flash tower and the residual oil discharge pipeline A.
4. The waste mineral oil recycling system of claim 1, wherein: the two residual oil tower top condensers are arranged on a residual oil light component discharge pipeline in parallel.
5. The waste mineral oil recycling system of claim 1, wherein: the residual oil water coolers are arranged on the residual oil discharge pipeline B in parallel.
6. The waste mineral oil recycling system of claim 1, wherein: the wax oil water coolers are arranged on the wax oil discharging pipeline in parallel.
7. The waste mineral oil recycling system of claim 1, wherein: and two lubricating oil tower top condensers are arranged on the raw oil feeding pipeline E in parallel.
8. The waste mineral oil recycling system of claim 1, wherein: and two condensers at the top of the engine oil tower are arranged on the engine oil light component discharge pipeline in parallel.
9. The waste mineral oil recycling system of claim 1, wherein: the two condensers at the top of the fuel oil tower are arranged on a discharge pipeline at the top of the fuel oil tower in parallel.
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| CN201921616940.8U CN211079043U (en) | 2019-09-26 | 2019-09-26 | Waste mineral oil regeneration recovery processing system |
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| CN110628455A (en) * | 2019-09-26 | 2019-12-31 | 南通市泓正再生资源有限公司 | Waste mineral oil regeneration recovery processing system |
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