CN213835018U - Vacuum thermal desorption device for petroleum oil sludge - Google Patents
Vacuum thermal desorption device for petroleum oil sludge Download PDFInfo
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- CN213835018U CN213835018U CN202022729062.XU CN202022729062U CN213835018U CN 213835018 U CN213835018 U CN 213835018U CN 202022729062 U CN202022729062 U CN 202022729062U CN 213835018 U CN213835018 U CN 213835018U
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Abstract
The utility model discloses a vacuum thermal desorption device for petroleum sludge, which belongs to the technical field of petroleum sludge treatment equipment and comprises a feeding device, a thermal desorption reaction material bin and a discharging device which are connected in sequence, and a smoke filter, a condensation unit and an oil-water separation device which are connected in sequence with the thermal desorption reaction material bin; the thermal desorption reaction material bin is provided with a reactor jacket, and the reactor jacket is filled with circulating heat conducting oil, so that the thermal desorption reaction material bin can be heated more uniformly; adding petroleum oil sludge to be treated in batches into a thermal desorption reaction material bin, heating the petroleum oil sludge in vacuum to reduce the boiling point of the petroleum oil in the petroleum oil sludge, evaporating the petroleum oil sludge, and collecting the recovered petroleum oil through a condensation step; the vacuum thermal desorption process does not involve chemical reaction, so the quality of the recovered petroleum oil is high, the petroleum oil can be directly sold, and the economic benefit is high.
Description
Technical Field
The utility model belongs to the technical field of oil sludge treatment equipment, concretely relates to oil sludge vacuum thermal desorption device.
Background
During the process of oil exploitation and storage, a large amount of oil sludge with high content of petroleum hydrocarbon can be generated, the soil containing the oil sludge belongs to dangerous waste, and the main types of the oil sludge include oil field waste slurry, large tank settled sludge, ground sludge, oily sludge generated in the sewage treatment process and the like.
At present, methods for treating petroleum oil sludge can be classified into physical methods, chemical methods, biological methods, and the like. Wherein the physical method comprises solvent extraction, landfill, centrifugal separation, hot alkaline water washing, air flotation three-phase separation, concentration and drying and the like; the chemical method comprises incineration, pyrolysis, thermal desorption, smoldering, catalytic cracking, ultrasonic extraction-chemical activation method and the like; the biological method includes biological cultivation, biological enhancement, biological flotation, etc. Among the above-mentioned treatment methods, extraction and water washing treatment methods are most widely used, and have the advantages of low cost, high petroleum hydrocarbon removal rate, recoverable wash oil, etc., but also have the disadvantages of large water consumption, easy environmental pollution of additives, etc.; thermal treatment methods such as incineration, pyrolysis, thermal desorption and the like are also frequently used, and have the advantages that petroleum hydrocarbon can be completely removed, the calorific value can be recycled, and the like, but the equipment cost is high, the energy consumption is high, and secondary pollution such as dust leakage and the like is serious.
In the prior art, many improvements have been made on a treatment method of petroleum sludge, for example, in chinese patent application CN106430893A (a sludge resource treatment system), a system capable of treating oily sludge is provided, which includes a vacuum pyrolysis device, a heat conduction oil heating device, a VOC collecting device, etc., oil-containing sludge in the vacuum pyrolysis device is heated and decomposed by heat conduction oil, volatile pollutants are evaporated by using the principle that various hydrocarbons have different boiling points, and thus pollutants are removed, and the operation is performed in a closed environment and is performed in a full-automatic mode. In chinese patent application CN108675590A (a periodic oil sludge pyrolysis treatment apparatus and a method for using the same), the treatment apparatus includes a pyrolysis furnace, a condenser, an oil-water separator, a mixed oil tank, a dust removal and desulfurization and denitration apparatus, etc., and oil sludge is heated under anaerobic conditions to analyze water and desorb hydrocarbons and organic matters, thereby achieving the effects of removing water and oil. Chinese utility model patent CN208083059U (solid waste innocent treatment equipment), the treatment facility is including the feed arrangement, thermal desorption device and the volatile organic compound condensing equipment who connects gradually, and thermal desorption device includes solar energy conduction oil heating system and waste material mixing system, carries out indirect heating to solid waste and reaches the pollutant boiling point after, and the pollutant separates out and becomes waste gas, and waste gas is adsorbed by activated carbon adsorption device after the condensation, has avoided combustion process. However, in the above patents, chemical reactions occur in the first two patents, the utilization rate of the finally obtained reaction product is low, and the final treatment is complicated due to the existence of liquid products; in the third patent, the solid waste is directly subjected to thermal desorption treatment, the boiling point is high, so that more heat is needed for heating, and the investment is large; meanwhile, petroleum hydrocarbon in the petroleum oil sludge is not effectively utilized by the three patents, so that the resource waste is great.
Therefore, the device and the method for treating the petroleum oil sludge are developed, the method can effectively separate the pollutant petroleum hydrocarbon in the petroleum oil sludge, thermal cracking cannot occur in the separation process, and a new treatment problem cannot be generated; and the petroleum hydrocarbon in the petroleum oil sludge can be effectively utilized as a recyclable resource, so that the method has positive practical significance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that wants to solve is in the in-process of handling oil sludge among the prior art, has the petroleum hydrocarbon separation difficulty in the oil sludge, and this part petroleum hydrocarbon is difficult to technical problem such as recycle.
In order to solve the technical problem, the utility model discloses a petroleum sludge vacuum thermal desorption device, which comprises a feeding device, a thermal desorption reaction material bin and a discharging device which are connected in sequence, wherein the petroleum sludge vacuum thermal desorption device also comprises a smoke filter, a condensation unit and an oil-water separation device which are connected in sequence with the thermal desorption reaction material bin;
the thermal desorption reaction material bin is provided with a feed inlet, a solid product discharge port and a gas product discharge port; the charging port is connected with the charging device, and the solid product discharging port is connected with the discharging device; the gas product discharge port is connected with the inlet of the smoke filter, the outlet of the smoke filter is connected with the inlet of the condensing unit, and the outlet of the condensing unit is connected with the oil-water separating device;
the thermal desorption reaction material bin is connected with a vacuum pump through a vacuum air pipe; a reactor jacket is arranged on the outer side of the thermal desorption reaction material bin;
the petroleum sludge vacuum thermal desorption device also comprises a heat-conducting oil heating device, the heat-conducting oil heating device comprises a heater and a heat-conducting oil circulating pipeline connected with the heater, two ends of the heat-conducting oil circulating pipeline are communicated with the reactor jacket, and heat-conducting oil is injected into the heat-conducting oil circulating pipeline and the reactor jacket;
a stirrer is arranged in the thermal desorption reaction material bin and comprises a stirring shaft and stirring blades arranged on the stirring shaft;
a cooling liquid pipeline is arranged in the condensing unit and is connected with external cooling liquid; the outlet of the condensing unit is connected with a tail gas treatment device;
the petroleum sludge vacuum thermal desorption device further comprises a central control system, the central control system comprises a programmable controller, and the programmable controller is respectively connected with the feeding device, the discharging device, the thermal desorption reaction material bin, the heat conduction oil heating device, the smoke dust filter, the condensation unit, the oil-water separation device and the tail gas treatment device and controls the operation process of the oil sludge vacuum thermal desorption device.
The smoke dust filter is made of high-temperature-resistant high-molecular polymer materials, and hourglass-shaped pores are distributed in the smoke dust filter in parallel. The airflow enters the small opening from the large opening, the smoke dust falls naturally, and then enters the large opening from the small opening for airflow expansion. The expansion process is exothermic. After several iterations, the solid soot is removed. The periphery of the smoke filter unit is also circularly heated by hot oil, and the high temperature is kept, so that the petroleum hydrocarbon liquid is prevented from condensing and being accumulated on the smoke filter.
Further, the condensation unit comprises a condenser, the condenser comprises a condenser air inlet, a condenser air outlet and a condenser liquid outlet, the condenser air inlet is connected with an outlet of the smoke dust filter, the condenser air outlet is connected with the tail gas treatment device, and the condenser liquid outlet is connected with the oil-water separation device; a cooling liquid pipeline is arranged in the condenser and is connected with external cooling liquid.
Furthermore, the condensing unit further comprises a cooler, the cooler comprises a cooler air inlet and a cooler air outlet, the cooler air inlet is connected with the condenser air outlet, and the cooler air outlet is connected with the condenser air inlet; a cooling liquid pipeline is arranged in the cooler and connected with external cooling liquid.
Further, the number of the coolers is 1.
Furthermore, a stirring shaft jacket is arranged outside the stirring shaft, a stirring blade jacket is arranged outside the stirring blades, two ends of the heat conduction oil circulation pipeline are connected with the stirring shaft jacket, the stirring blade jacket is connected with the stirring shaft jacket, and heat conduction oil is injected into the stirring shaft jacket and the stirring blade jacket.
Further, the heat source of the heater comprises one or more of electric energy, fuel gas, diesel oil, biomass energy, methane and solar energy.
Furthermore, a quenching device and an active carbon adsorption chamber are sequentially arranged in the tail gas treatment device.
Further, the inner wall of the thermal desorption reaction material bin is made of an iron-based alloy material.
Further, the structure of the stirring blade comprises one or more of a spiral type, an anchor type, a plate type, a paddle type and a turbine type.
The use method of the petroleum oil sludge vacuum thermal desorption device comprises the following steps:
(1) opening the feeding device, and feeding the petroleum oil sludge into the thermal desorption reaction material bin through a feeding port of the thermal desorption reaction material bin; opening a vacuum pump of the thermal desorption reaction material bin, and vacuumizing the thermal desorption reaction material bin;
(2) opening the stirrer, and driving stirring blades to stir the petroleum oil sludge in the thermal desorption reaction material bin by the stirring shaft; opening a heat-conducting oil heating device, and enabling heat-conducting oil to enter a reactor jacket through a heat-conducting oil circulating pipeline to heat a thermal desorption reaction material bin;
(3) the heated solid product enters a discharging device through a solid product discharging port; volatilizable products obtained by heating and evaporation enter a smoke dust filter through a gas product discharge port to be filtered;
(4) the volatile gas after filtration treatment enters a condensing unit, the liquid obtained by condensation enters an oil-water separation device, and oil and moisture generated by separation in the oil-water separation device are respectively collected; and the gas which cannot be condensed enters a tail gas treatment device for treatment and then is discharged. The tail gas treatment device can remove residual volatile gas in the gas and ensure the standard emission.
The utility model discloses a vacuum thermal desorption technique carries out vacuum heating and retrieves petroleum oil content to petroleum fatlute, and the concept source of vacuum thermal desorption technique is derived from Germany, and it creates the negative pressure environment in airtight cavity, reduces the boiling point of petroleum hydrocarbon boiling. The petroleum oil sludge is disturbed while being heated, so that petroleum hydrocarbon molecules in the oil sludge are released from pores and are extracted and collected in vacuum. Because of the low boiling point of the vacuum negative pressure and the relatively low heating temperature (less than 350 ℃), no chemical reaction generally occurs, and the crude petroleum component in the oil sludge can be perfectly separated without generating intractable byproducts like pyrolysis. The recovered oil is completely consistent with the petroleum components extracted from the place where the pollution is generated.
The realization of vacuum thermal desorption requires more delicate and complex equipment than common indirect thermal desorption equipment, and particularly in a sealed vacuum link, so that the realization of the target vacuum degree is ensured. The condensing and collecting system also needs to be capable of recovering the original petroleum components in the oil sludge in maximum quantity so as to achieve the highest economic benefit in the recycling. The recovered oil component can also be used as energy source for initial heating instead of electricity or gas. Thus, energy input and output for petroleum processing with high petroleum hydrocarbon content can generate revenue.
Compared with the prior art, the utility model discloses a petroleum fatlute vacuum thermal desorption device has following advantage:
(1) the batch charging is adopted, the sealing is realized during single heating, the harmful gas of the petroleum molecules is not leaked, and the secondary pollution to the environment is avoided;
(2) the vacuum environment is arranged in the thermal desorption reaction material bin, so that the boiling point of petroleum hydrocarbon can be reduced, the heat consumption is low, and the energy is effectively saved;
(3) the oil with economic value can be directly recovered from the petroleum oil sludge, and the recovery process does not involve chemical reaction, so that the recovered oil has high quality, can be directly sold, and has high economic benefit;
(4) after the petroleum oil sludge is treated, useful water and oil are separated, so that the amount of dangerous waste is reduced, and the environmental pollution is reduced;
(5) the device is intelligently controlled through the central control system, and the operation is simple; meanwhile, the conditions such as temperature, pressure, material transportation speed and the like can be calculated according to the physical reaction model, and the deviation can be corrected according to the past case model, so that the control precision is high.
Drawings
FIG. 1: the structure schematic diagram of the petroleum oil sludge vacuum thermal desorption device.
Description of reference numerals: 1-a feeding device; 2-thermal desorption reaction material bin; 21-a stirrer; 211-a stirring shaft; 212-stirring blade; 3-a discharging device; 4-a soot filter; 5-a condensing unit; 51-a condenser; 52-a cooler; 6-tail gas treatment device; 7-a heat-conducting oil heating device; 71-a heater; 72-heat transfer oil circulation pipeline; 8-an oil-water separation device; 91-a water recovery tank; 92-oil recovery tank.
Detailed Description
The technical solution of the present invention will be explained in detail by the following embodiments.
As shown in fig. 1, the petroleum sludge vacuum thermal desorption device comprises a feeding device 1, a thermal desorption reaction material bin 2 and a discharging device 3 which are sequentially connected, and a smoke filter 4, a condensation unit 5 and an oil-water separation device 8 which are sequentially connected with the thermal desorption reaction material bin 2; the inner wall of the thermal desorption reaction material bin 2 is made of an iron-based alloy material, in particular Swedish steel or German high-temperature-resistant alloy steel, and can resist the high temperature of 750 ℃. Specifically, the thermal desorption reaction material bin 2 in this embodiment is a steel reaction tank.
The thermal desorption reaction material bin 2 is a thermal desorption reactor, and a feeding port, a solid product discharge port and a gas product discharge port are arranged on the thermal desorption reaction material bin 2; the charging hole is connected with the charging device 1, and the solid product discharging hole is connected with the discharging device 3; the gas product discharge port is connected with the inlet of the smoke filter 4, the outlet of the smoke filter 4 is connected with the inlet of the condensing unit 5, and the outlet of the condensing unit 5 is connected with the oil-water separating device 8; the outlet of the oil-water separator 8 is connected to a water recovery tank 91 and an oil recovery tank 92, respectively.
A screw pushing mechanism is arranged at an outlet of the feeding device 1, the outlet of the screw pushing mechanism is connected with a feeding port of the thermal desorption reaction material bin 2, and the screw pushing mechanism can more effectively add the petroleum oil sludge raw material in the feeding device 1 into the thermal desorption reaction material bin 2 for reaction; similarly, a screw pushing mechanism is also arranged at the outlet of the discharging device 2, so that solid-liquid products after treatment are conveniently discharged.
The thermal desorption reaction material bin 2 is connected with a vacuum pump through a vacuum air pipe; a reactor jacket is arranged on the outer side of the thermal desorption reaction material bin 2; the petroleum sludge vacuum thermal desorption device also comprises a heat-conducting oil heating device 7, wherein the heat-conducting oil heating device 7 comprises a heater 71 and a heat-conducting oil circulating pipeline 72 connected with the heater 71, two ends of the heat-conducting oil circulating pipeline 72 are communicated with a reactor jacket, and heat-conducting oil is injected into the heat-conducting oil circulating pipeline 72 and the reactor jacket; the heater 71 is heated by burning, and the specific fuel is gas, diesel oil or biogas; while the heater 71 may also be electrically heated.
A stirrer 21 is arranged in the thermal desorption reaction material bin 2, and the stirrer 21 comprises a stirring shaft 211 and stirring blades 212 arranged on the stirring shaft 211; a stirring shaft jacket is arranged outside the stirring shaft 211, two ends of the heat conducting oil circulating pipeline 72 are connected with the stirring shaft jacket, and heat conducting oil is injected into the stirring shaft jacket. The structure of the stirring blades 212 is a plate-type stirring blade, and includes a transverse stirring blade perpendicular to the stirring shaft 21 and a vertical stirring blade parallel to the stirring shaft 21, so that the stirring manner of the stirrer 21 in the thermal desorption reaction material bin 2 includes transverse stirring, longitudinal stirring, spiral stirring, and the like. Stirring blade 212 is also provided with a stirring blade jacket, the stirring blade jacket is connected with the stirring shaft jacket, and the heat conducting oil in the heat conducting oil circulating pipeline 72 can enter the stirring shaft jacket and the stirring blade jacket simultaneously, so as to ensure that the materials in the thermal desorption reaction material bin 2 can be heated in the stirring process.
The heat conducting oil circulation pipe 72 is made of a good thermal conductor, specifically, iron-copper or an alloy of iron and copper.
Set up the reactor on thermal desorption reaction material storehouse 2 and press from both sides the cover, set up the (mixing) shaft on (mixing) shaft 211 and press from both sides the cover, and press from both sides the cover at the reactor and pour into the conduction oil into in the stirring shaft jacket, the conduction oil after will heating through conduction oil heating device 7 is at thermal desorption reaction material storehouse 2 and (mixing) shaft 211 inner loop flow, through thermal cycle, can let the reaction material in thermal desorption reaction material storehouse 2 be heated more evenly, further improve the efficiency of vacuum thermal desorption, and can desorb more effective components in the oil sludge, the rate of recovery is improved.
In addition, the inside nitrogen gas supply pipeline that still is connected with of reactor of thermal desorption reaction material storehouse 2 is inside, and gas protection is carried out to the inside nitrogen gas that lets in of thermal desorption reaction material storehouse 2 in the reaction process, can prevent that oxygen and petroleum hydrocarbon from taking place the reaction under the high temperature to the quality of the petroleum hydrocarbon that the influence was retrieved and is obtained.
In order to increase the condensation effect, the condensation unit 5 comprises a condenser 51 and a cooler 52, the cooler 52 can further cool the gas, the condenser 5 comprises a condenser air inlet, a condenser air outlet and a condenser liquid outlet, the condenser air inlet is connected with the outlet of the soot filter 4, the condenser air outlet is connected with the tail gas treatment device 6, and the condenser liquid outlet is connected with the oil-water separation device 8; the cooler 52 includes a cooler air inlet and a cooler air outlet, the cooler air inlet of the cooler 52 being connected to the condenser air outlet, the cooler air outlet being connected to the condenser air inlet of the condenser 5.
The condenser 51 and the cooler 52 are provided with coolant pipes to which external coolant is connected. Specifically, the external coolant to which the coolant pipes in the condenser 51 and the cooler 52 are connected is cooling water. The cold water in the condensate pipe is continuously circulated to take away heat, and the gas contained in the steam evaporated from the condenser 51 is condensed into liquid to be recycled as the recovered oil component.
The tail gas treatment device 6 is a tail gas treatment device commonly used in the chemical industry, and a quenching device and an active carbon adsorption chamber at the temperature of-15 ℃ are sequentially arranged in the tail gas treatment device 6, so that the tail gas treatment device can be used for adsorbing particle impurities in the tail gas, removing peculiar smell and further reducing the harm of the tail gas to the environment. The gas passing through the tail gas treatment device 6 is a small amount of volatile organic gas remained after condensation.
The utility model discloses in, gas cooling and the condensation process among the condensing unit 5 go on in vacuum environment, and water oil separating also goes on in vacuum environment, and the tail gas treatment process goes on in atmospheric environment.
The utility model discloses a petroleum fatlute vacuum thermal desorption device still includes central control system, and central control system includes programmable controller, and programmable controller links to each other with feeding device 1, discharging device 3, thermal desorption reaction material storehouse 2, conduction oil heating device 7, smoke and dust filter 4, condensing unit 5, oil-water separator 8 and tail gas processing apparatus 6 respectively to through the software procedure, realize intelligent temperature and pressure control to petroleum fatlute vacuum thermal desorption device.
Adopt the utility model discloses a when oil fatlute vacuum thermal desorption device carries out vacuum thermal desorption to oil fatlute, operating procedure includes:
(1) opening the feeding device, and feeding the petroleum oil sludge into the thermal desorption reaction material bin 2 through a feeding port of the thermal desorption reaction material bin; opening a vacuum pump of the thermal desorption reaction material bin 2, and vacuumizing the thermal desorption reaction material bin 2; after the vacuum pumping is finished, nitrogen can be introduced into the thermal desorption reaction material bin 2 for nitrogen protection.
(2) The stirrer 21 is opened, and the stirring shaft 211 drives the stirring blades 212 to stir in the thermal desorption reaction material bin 2; opening the heat-conducting oil heating device 7, and allowing the heat-conducting oil to enter a jacket of the reactor through a heat-conducting oil circulating pipeline 72 to heat the thermal desorption reaction material bin 2;
(3) the heated solid product enters a discharging device 3 through a solid product discharging port; volatilizable products obtained by heating and evaporation enter a smoke dust filter 4 through a gas product discharge hole for filtering treatment;
(4) the filtered gas enters a condensing unit 5, the liquid obtained by condensation enters an oil-water separation device 8, and oil and water generated by separation in the oil-water separation device 8 are respectively collected; the oil content enters an oil recovery tank 92, and the water content enters a water recovery tank 91, so that the oil content can be recovered and recycled; and the gas which cannot be condensed enters a tail gas treatment device for treatment and then is discharged.
In the operation process of the device, the heating temperature in the thermal desorption reaction material bin 2 is less than 450 ℃, and the vacuum degree is less than 100 KPa. The heating in the thermal desorption reaction material bin 2 is carried out in two steps, which specifically comprises the following steps: the first step is heating to 80-150 ℃ to remove water, and the vacuum degree is 80 KPa; the second step is heating to 350-400 ℃, the material temperature is 330 ℃, and the vacuum degree is less than 10 KPa. The maximum operating temperature of the thermal desorption reaction chamber 2 is 450 ℃.
When the vacuum thermal desorption equipment is used for carrying out vacuum thermal desorption on the petroleum oil sludge, no chemical reaction occurs, and only heating evaporation and condensation in a physical process are carried out, so that petroleum hydrocarbon components in the petroleum oil sludge are not changed, and the recovered oil product is completely consistent with the petroleum components obtained by exploitation, and can be directly recycled, thereby changing waste into valuable.
The utility model discloses a petroleum fatlute vacuum thermal desorption device passes through the boiling point that vacuum negative pressure reduced the oil, and even heating is realized in hot oil circulation, and airtight space realizes the method of the processing petroleum pollution fatlute of oil gas molecule full recovery. The method can separate valuable oil products in the soil containing petroleum hydrocarbon generated in the processes of petroleum exploitation, storage and processing from a medium by desorption and transpiration, and recycle the valuable oil products. And the economic substances are recovered from the waste, so that the waste is changed into valuable.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a petroleum fatlute vacuum thermal desorption device, includes feeding device, thermal desorption reaction material storehouse and discharging device that connect gradually, its characterized in that: the petroleum oil sludge vacuum thermal desorption device also comprises a smoke filter, a condensation unit and an oil-water separation device which are sequentially connected with the thermal desorption reaction material bin;
the thermal desorption reaction material bin is provided with a feed inlet, a solid product discharge port and a gas product discharge port; the charging port is connected with the charging device, and the solid product discharging port is connected with the discharging device; the gas product discharge port is connected with the inlet of the smoke filter, the outlet of the smoke filter is connected with the inlet of the condensing unit, and the outlet of the condensing unit is connected with the oil-water separating device;
the thermal desorption reaction material bin is connected with a vacuum pump through a vacuum air pipe; a reactor jacket is arranged on the outer side of the thermal desorption reaction material bin;
the petroleum sludge vacuum thermal desorption device also comprises a heat-conducting oil heating device, the heat-conducting oil heating device comprises a heater and a heat-conducting oil circulating pipeline connected with the heater, two ends of the heat-conducting oil circulating pipeline are communicated with the reactor jacket, and heat-conducting oil is injected into the heat-conducting oil circulating pipeline and the reactor jacket;
a stirrer is arranged in the thermal desorption reaction material bin and comprises a stirring shaft and stirring blades arranged on the stirring shaft;
a cooling liquid pipeline is arranged in the condensing unit and is connected with external cooling liquid; the outlet of the condensing unit is connected with a tail gas treatment device;
the petroleum sludge vacuum thermal desorption device further comprises a central control system, the central control system comprises a programmable controller, and the programmable controller is respectively connected with the feeding device, the discharging device, the thermal desorption reaction material bin, the heat conduction oil heating device, the smoke dust filter, the condensation unit, the oil-water separation device and the tail gas treatment device and controls the operation process of the oil sludge vacuum thermal desorption device.
2. The vacuum thermal desorption device for petroleum sludge according to claim 1, which is characterized in that: the condensation unit comprises a condenser, the condenser comprises a condenser air inlet, a condenser air outlet and a condenser liquid outlet, the condenser air inlet is connected with the outlet of the smoke dust filter, the condenser air outlet is connected with the tail gas treatment device, and the condenser liquid outlet is connected with the oil-water separation device; a cooling liquid pipeline is arranged in the condenser and is connected with external cooling liquid.
3. The vacuum thermal desorption device for petroleum sludge according to claim 2, which is characterized in that: the condensation unit also comprises a cooler, the cooler comprises a cooler air inlet and a cooler air outlet, the cooler air inlet is connected with the condenser air outlet, and the cooler air outlet is connected with the condenser air inlet; a cooling liquid pipeline is arranged in the cooler and connected with external cooling liquid.
4. The vacuum thermal desorption device for petroleum sludge according to claim 3, which is characterized in that: the number of coolers is 1.
5. The vacuum thermal desorption device for petroleum sludge according to claim 1, which is characterized in that: the stirring shaft is externally provided with a stirring shaft jacket, the stirring blade is externally provided with a stirring blade jacket, two ends of the heat conduction oil circulation pipeline are connected with the stirring shaft jacket, the stirring blade jacket is connected with the stirring shaft jacket, and heat conduction oil is injected into the stirring shaft jacket and the stirring blade jacket.
6. The vacuum thermal desorption device for petroleum sludge according to claim 1, which is characterized in that: the heat source of the heater comprises one or more of electric energy, fuel gas, diesel oil, biomass energy, methane and solar energy.
7. The vacuum thermal desorption device for petroleum sludge according to claim 1, which is characterized in that: the tail gas treatment device is sequentially provided with a quenching device and an active carbon adsorption chamber.
8. The vacuum thermal desorption device for petroleum sludge according to claim 1, which is characterized in that: the inner wall of the thermal desorption reaction material bin is made of an iron-based alloy material.
9. The vacuum thermal desorption device for petroleum sludge according to claim 1, which is characterized in that: the structure of the stirring blade comprises one or more of a spiral type, an anchor type, a plate type, a paddle type and a turbine type.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022729062.XU CN213835018U (en) | 2020-11-23 | 2020-11-23 | Vacuum thermal desorption device for petroleum oil sludge |
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| CN202022729062.XU CN213835018U (en) | 2020-11-23 | 2020-11-23 | Vacuum thermal desorption device for petroleum oil sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466031A (en) * | 2022-09-06 | 2022-12-13 | 浙江金龙自控设备有限公司 | Oily sludge purification and recovery device |
| NO20220506A1 (en) * | 2022-05-03 | 2023-11-06 | Thermtech Holding As | Process for Treating a Mixture of Solid Material and Liquids, Composition Obtainable by the Process, and Use of the Composition |
-
2020
- 2020-11-23 CN CN202022729062.XU patent/CN213835018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20220506A1 (en) * | 2022-05-03 | 2023-11-06 | Thermtech Holding As | Process for Treating a Mixture of Solid Material and Liquids, Composition Obtainable by the Process, and Use of the Composition |
| CN115466031A (en) * | 2022-09-06 | 2022-12-13 | 浙江金龙自控设备有限公司 | Oily sludge purification and recovery device |
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