CN113731227B

CN113731227B - Stirring shaft assembly, thermal desorption device, oil-based material treatment system and method

Info

Publication number: CN113731227B
Application number: CN202111070739.6A
Authority: CN
Inventors: 王之学; 魏巍; 孙启刚; 郝燕超; 张哲娜; 唐建稳; 王涛; 丁昊
Original assignee: Jereh Environmental Protection Technology Co Ltd
Current assignee: Jereh Environmental Protection Technology Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2023-11-03
Anticipated expiration: 2041-09-13
Also published as: CN113731227A

Abstract

The invention discloses a stirring shaft assembly, a thermal desorption device, an oil-based material treatment system and a method, relates to the field of petrochemical material treatment, and aims to solve the problems that materials in the thermal desorption device of the existing oil-based material treatment system are easy to harden, so that heating is uneven and the thermal desorption treatment effect is affected. This (mixing) shaft subassembly includes: a stirring shaft; the stirring paddles are arranged on the stirring shaft in a spiral manner and are connected with the stirring shaft; wherein the stirring paddles have a stirring surface for pushing the material, and the stirring surfaces of the stirring paddles form a part of at least one spiral surface. According to the stirring shaft assembly, when the stirring shaft rotates, the spiral surface can push oil-based materials in the furnace body, and meanwhile, the plurality of stirring paddles can scatter and evenly turn over the oil-based materials, so that the oil-based materials can be uniformly heated, and accumulation and hardening of the materials can be prevented.

Description

Stirring shaft assembly, thermal desorption device, oil-based material treatment system and method

Technical Field

The invention relates to the field of petrochemical material treatment, in particular to a stirring shaft assembly, a thermal desorption device, an oil-based material treatment system and a method.

Background

In recent years, in oil and gas resource development operations, the use scale of oil-based drilling fluids with strong lubricity and good stability is increased year by year, resulting in the generation of a large amount of oil-based drill cuttings solid waste. The oil-based cuttings composition is quite complex and if left untreated or improperly handled, will have multiple effects and hazards to the surrounding environment.

At present, common oil-based drilling cuttings treatment technologies mainly comprise solvent extraction, thermal desorption technology, TCC technology and the like. The thermal desorption treatment technology is that under the condition of anaerobic, the material is indirectly heated in a thermal desorption furnace to reach the boiling point of volatile substances in the material, so that the oil is evaporated and removed from the material, and the condensation recovery of the oil is realized. The thermal desorption technology can realize innocent treatment and recycling of the oil-based drilling cuttings, and is the most advantageous oil-based drilling cuttings treatment technology at present.

In the related art, the thermal desorption device needs to be matched with a fuel gas, fuel oil or biomass burner, heat energy is provided through fuel combustion, the operation site needs to be matched with a related transmission pipeline or periodically transport solid fuel, the requirement on the application site is high, the thermal desorption device cannot be used in a site where open fire operation is stopped, and the electromagnetic heating method can effectively solve the problems.

In the related art, when carrying out thermal desorption to oil-based drill chip, the material in the thermal desorption device is piled up in the device bottom under the effect of gravity, and under stirring shaft helical blade's extrusion promotion, the material is easy to harden, and is thus heated unevenly, influences thermal desorption treatment effect.

Disclosure of Invention

The invention aims to provide a stirring shaft assembly, a thermal desorption device, an oil-based material treatment system and a method, which are used for solving the problems that materials in the thermal desorption device of the traditional oil-based material treatment system are easy to harden, so that the heating is uneven and the thermal desorption treatment effect is affected.

In order to achieve the above purpose, the present invention provides the following technical solutions:

in a first aspect, some embodiments of the present invention provide a stirring shaft assembly comprising: a stirring shaft; the stirring paddles are arranged on the stirring shaft in a spiral manner and are connected with the stirring shaft; wherein the stirring paddles have a stirring surface for pushing the material, and the stirring surfaces of the stirring paddles form a part of at least one spiral surface.

In some embodiments, the stirring shaft comprises: the stirring shaft body is provided with a first mounting hole, and the first mounting hole penetrates through the stirring shaft body along the axis of the stirring shaft body; the stirring shaft body is connected with the stirring paddle; the support shaft penetrates through the first mounting hole and is rotationally connected with the stirring shaft body; and the first induction coil is positioned between the stirring shaft body and the supporting shaft and is wound on the outer wall of the supporting shaft.

In some embodiments, the stirring shaft comprises: the stirring shaft body is provided with a first mounting hole, and the first mounting hole penetrates through the stirring shaft body along the axis of the stirring shaft body; the stirring shaft body is connected with the stirring paddle; the insulating sleeve is arranged in the first mounting hole in a penetrating way; the support tube penetrates through the insulating sleeve and is rotationally connected with the stirring shaft body; the support tube is provided with a second mounting hole penetrating through the wall of the support tube; and one part of the first induction coil penetrates through the supporting tube, and the other part of the first induction coil penetrates out of the supporting tube through the second mounting hole, is positioned between the stirring shaft body and the insulating sleeve and is wound on the outer wall of the insulating sleeve.

In some embodiments, the first induction coil is formed by winding a water-cooled copper tube, and an inner cavity of the water-cooled copper tube is used for communicating cooling water.

In some embodiments, the insulating sleeve comprises: the first round baffle plate is provided with a third mounting hole; the second round baffle plate is arranged opposite to the first round baffle plate, a fourth mounting hole is formed in the second round baffle plate, and the fourth mounting hole is communicated with the third mounting hole; the two ends of the supporting baffle plates are respectively connected with the first round baffle plate and the second round baffle plate; the support baffle plates are distributed on the same circumference, gaps are reserved between two adjacent support baffle plates, and the support baffle plates form the pipe wall of the insulating sleeve.

In some embodiments, the stirring shaft further comprises: the annular supporting pieces are arranged in the inner cavity of the insulating sleeve and sleeved on the supporting tube.

In some embodiments, the stirring shaft further comprises: the first heat preservation layer is positioned between the water-cooling copper pipe and the stirring shaft body and is coated on the pipe wall of one side of the water-cooling copper pipe, which is close to the stirring shaft body.

In some embodiments, the paddle comprises: the connecting pieces are spirally arranged on the stirring shaft and are connected with the stirring shaft; and the stirring plate is detachably connected with one end, far away from the stirring shaft, of the connecting piece, and the plate surface of the stirring plate is the stirring surface.

In some embodiments, the plurality of paddles comprises: two end paddles and a plurality of intermediate paddles positioned between the two end paddles; the end paddle further comprises: and the scraping plate is connected with one side of the connecting piece, which is close to the end part of the stirring shaft.

In some embodiments, at least one of the helicoids comprises a first helicoid and a second helicoid, the first helicoid and the second helicoid having opposite sense of rotation; the plurality of paddles includes: a plurality of first stirring paddles which are sequentially arranged in a spiral manner and a plurality of second stirring paddles which are sequentially arranged in a spiral manner; wherein the stirring surfaces of the plurality of first stirring paddles form part of the first helicoid and the stirring surfaces of the plurality of second stirring paddles form part of the second helicoid.

In some embodiments, the connecting piece is perpendicular to the stirring shaft, and an included angle between the plate surface of the stirring plate and the axis of the stirring shaft is 30-45 degrees.

In some embodiments, the projections of all the first paddles on a first plane are uniformly arranged along the circumference of the projection of the stirring shaft on the first plane; and the projections of all the second stirring paddles on the first plane are uniformly distributed along the circumference of the projection of the stirring shaft on the first plane.

In a second aspect, some embodiments of the present invention further provide a thermal desorption apparatus, including: the furnace body comprises a feed inlet, a solid material outlet and a gaseous material outlet; the second induction coil is arranged on the outer wall of the furnace body; and, the stirring assembly of any one of the embodiments above; the stirring shaft in the stirring shaft assembly penetrates through the furnace body, and the stirring paddle in the stirring shaft assembly is positioned in the furnace body.

In some embodiments, in the case that the stirring paddle includes a connecting piece and a stirring plate, a surface of the stirring plate away from the connecting piece is an arc surface, and the distance between each arc surface and the inner wall of the furnace body is the same; the distance between the cambered surface and the inner wall of the furnace body is 3 mm-5 mm.

In some embodiments, the second induction coil is wound on the furnace outer wall.

In some embodiments, the thermal desorption device further comprises: at least one coil bracket buckled on the outer wall of one side of the furnace body where the solid material outlet is located; the second induction coil is wound on the coil bracket; and the fixing frame is detachably connected with the coil brackets, and an installation space for penetrating the furnace body is formed between the fixing frame and at least one coil bracket.

In some embodiments, the coil support comprises: a plurality of arc plates arranged side by side, and a gap is reserved between two adjacent arc plates; the two first connecting plates are respectively connected with the two ends of each arc-shaped plate; wherein, the second induction coil wears to establish a plurality of at least a portion in the arc.

In some embodiments, the thermal desorption device comprises two of the coil supports; the fixing frame is arc-shaped and is arranged on the outer wall of one side of the furnace body away from the solid material outlet in a straddling manner; two ends of the fixing frame are detachably connected with the two coil brackets respectively; the thermal desorption apparatus further includes: and at least one fixing piece, wherein the fixing piece is connected with the two coil brackets.

In some embodiments, two ends of the fixing frame are respectively provided with a plurality of groups of first connecting holes, and the plurality of groups of first connecting holes are arranged at intervals along the arc-shaped extending direction of the fixing frame; the two coil supports are a first coil support and a second coil support respectively; the thermal desorption apparatus further includes: one end of the second connecting plate is connected with the end part of the first coil bracket far away from the second coil bracket, and a second connecting hole is formed in the second connecting plate; one end of the third connecting plate is connected with the end part of the second coil bracket far away from the first coil bracket, and a third connecting hole is formed in the third connecting plate; the first fixing connecting piece passes through the second connecting hole and the first connecting hole at one end part of the fixing frame to connect the second connecting plate with the fixing frame; and the second fixed connecting piece passes through the third connecting hole and the first connecting hole at the other end part of the fixing frame to connect the third connecting plate with the fixing frame.

In some embodiments, the thermal desorption device further comprises: and at least one part of the second heat preservation layer is positioned between the outer wall of the furnace body and the second induction coil.

In a third aspect, some embodiments of the present invention also provide an oil-based material handling system, comprising: the thermal desorption device according to any one of the above embodiments; and a power supply electrically connected with the second induction coil in the thermal desorption device and used for providing an electric signal to the second induction coil.

In some embodiments, where the stirring shaft includes a stirring shaft body and a first induction coil, the oil-based material handling system further includes: the first temperature measuring instruments are positioned in the furnace body and connected with the stirring shaft body, and are used for measuring the first heating temperature of the stirring shaft body; the second temperature measuring instruments are positioned on the wall of the furnace body and are used for measuring the second heating temperature of the furnace body; and the third temperature measuring instrument is positioned at the gaseous material outlet and is used for measuring the temperature of the gaseous material at the gaseous material outlet.

In some embodiments, the furnace body is provided with a nitrogen inlet for receiving nitrogen; the oil-based material treatment system further comprises an oxygen content detection device, wherein the detection end of the oxygen content detection device is positioned in the furnace body, and the oxygen content detection device is used for detecting the oxygen content in the furnace body.

In some embodiments, the oil-based material handling system further comprises: and the torque sensor is arranged on the stirring shaft and used for detecting the torque of the stirring shaft.

In some embodiments, the oil-based material handling system further comprises: the first condenser is connected in series between the gaseous material outlet and the first liquid storage tank; the second condenser is connected in series between the gaseous material outlet and the second liquid storage tank; and a first valve assembly connected between the gaseous material outlet and the first condenser, and between the gaseous material outlet and the second condenser, the first valve assembly being for controlling the gaseous material outlet to communicate with the first condenser or the second condenser.

In some embodiments, the oil-based material handling system further comprises a vacuum device in communication with at least one of the first and second reservoirs, the vacuum device for evacuating at least the interior of the furnace body.

In some embodiments, the oil-based material handling system further comprises: the discharging device comprises a first screw conveyor and a cooler, and the first screw conveyor is communicated with the solid material outlet; the cooler is connected with the first screw conveyor to cool the first screw conveyor; and the feeding device comprises a hopper, a second screw conveyer and a conveying pump, wherein the outlet of the hopper is communicated with the inlet of the second screw conveyer, the outlet of the second screw conveyer is communicated with the feeding hole, and the conveying pump is connected between the outlet of the second screw conveyer and the feeding hole.

In a fourth aspect, some embodiments of the present invention further provide a method for treating an oil-based material, which is applied to the oil-based material treatment system according to any one of the above embodiments, and the method includes: filling oil-based materials to be treated into the furnace body from the feed inlet; starting a stirring shaft assembly to stir the oil-based material to be treated; and introducing a first current into the second induction coil so as to enable the furnace body to heat the oil-based material to be treated to form distillate steam and solid materials; the fraction vapor is discharged from the gaseous material outlet, and the solid material is discharged from the solid material outlet.

In some embodiments, where the oil-based material handling system includes a torque sensor, after the activating the agitator shaft assembly to agitate the oil-based material to be handled, the method further comprises: receiving the torque of the stirring shaft measured by the torque sensor; and adjusting the rotating speed of the stirring shaft according to the torque of the stirring shaft, which is measured by the torque sensor, so that the rotating speed is positively related to the torque.

In some embodiments, after the receiving the torque of the stirring shaft measured by the torque sensor, before the adjusting the rotation speed of the stirring shaft according to the torque of the stirring shaft measured by the torque sensor, the method further includes: and if the torque of the stirring shaft exceeds the torque threshold value, adjusting the steering of the stirring shaft.

In some embodiments, where the oil-based material handling system further comprises a first induction coil, a first thermometry instrument, a second thermometry instrument, and a third thermometry instrument, the method further comprises: passing a second current through the first induction coil; receiving a first heating temperature of the stirring shaft body measured by the first temperature measuring instrument, a second heating temperature of the furnace body measured by the second temperature measuring instrument and a gaseous material temperature at the gaseous material outlet measured by the third temperature measuring instrument; if the first heating temperature and the second heating temperature are both in the first preset range, keeping the current which is fed into the second induction coil and the first induction coil until the temperature of the gaseous material reaches a first temperature threshold; increasing the current flowing into the second induction coil and the first induction coil; if the first heating temperature and the second heating temperature are both in the second preset range, keeping the current flowing into the second induction coil and the first induction coil until the temperature of the gaseous material reaches a second temperature threshold; the first preset range is smaller than the second preset range, and the first temperature threshold is smaller than the second temperature threshold.

In some embodiments, in a case that the furnace body is provided with a nitrogen gas inlet, and the oil-based material processing system further includes an oxygen content detection device, the method further includes: receiving the oxygen content in the furnace body detected by the oxygen content detection device; and if the oxygen content detected by the oxygen content detection device exceeds the oxygen content threshold, inputting nitrogen into the furnace body so as to remove oxygen in the furnace body out of the furnace body.

The stirring shaft assembly, the thermal desorption device, the oil-based material treatment system and the oil-based material treatment method provided by the invention have the following beneficial effects:

the thermal desorption device provided by the invention comprises a furnace body, a second induction coil and a stirring shaft assembly, so that a magnetic field generated after the second induction coil is electrified can generate vortex in the furnace wall of the furnace body, the furnace wall is used for heating the oil-based material to be treated filled in the furnace body, and when the temperature in the furnace body reaches the boiling point of water or oil in the oil-based material, the water or oil is evaporated from the oil-based material to form steam, so that the thermal desorption treatment of the oil-based material can be realized. The thermal desorption device provided by the invention carries out thermal desorption treatment on the oil-based materials through electromagnetic heating, so that the thermal desorption device can be applied to an operation site with limited open fire and has a wide application range.

According to the stirring shaft assembly, the stirring surfaces of the stirring paddles in the stirring shaft assembly form at least one intermittent spiral surface extending along the axis direction of the stirring shaft, so that when the stirring shaft rotates, the spiral surface can push oil-based materials in the furnace body along two opposite directions parallel to the axis of the stirring shaft, and meanwhile, the stirring paddles can uniformly break up and turn over the oil-based materials, so that the oil-based materials are uniformly heated, and the phenomenon that the thermal desorption treatment effect is influenced due to accumulation and hardening of the materials can be prevented.

The oil-based material treatment system provided by the invention can also have the same technical effects because the oil-based material treatment system comprises the thermal desorption device and the stirring shaft assembly in any one of the embodiments, solves the same technical problems and is not repeated here.

The oil-based material treatment method provided by the invention can also produce the same technical effects and solve the same technical problems as the oil-based material treatment system described in any one of the embodiments, and is not repeated here.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an oil-based material handling system according to some embodiments of the present invention;

FIG. 2 is a front view of a portion of a thermal desorption apparatus according to some embodiments of the present invention;

FIG. 3 is a partial structural plan view of a thermal desorption apparatus according to some embodiments of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a three-dimensional schematic view of a stirring shaft assembly according to some embodiments of the invention;

FIG. 6 is a front view of a stirring shaft assembly according to some embodiments of the present invention;

FIG. 7 is a schematic view of a portion of a stirring shaft assembly according to some embodiments of the present invention;

FIG. 8 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 9 is an external schematic view of a portion of the structure of a stirring shaft assembly according to some embodiments of the present invention;

FIG. 10 is a cross-sectional view at C-C of FIG. 9 according to some embodiments of the invention;

FIG. 11 is a cross-sectional view taken at C-C of FIG. 9 according to further embodiments of the present invention;

FIG. 12 is a three-dimensional schematic view of a first induction coil according to some embodiments of the invention;

fig. 13 is a schematic view of an insulating sleeve according to some embodiments of the present invention;

fig. 14 is a schematic view of an insulating sleeve according to other embodiments of the present invention;

FIG. 15 is a three-dimensional schematic view of a thermal desorption apparatus according to some embodiments of the present invention;

FIG. 16 is a bottom view of a thermal desorption apparatus according to some embodiments of the present invention;

FIG. 17 is a front view of a thermal desorption apparatus according to some embodiments of the present invention;

FIG. 18 is a schematic three-dimensional view of a thermal desorption apparatus (hidden furnace and stirring shaft assembly) according to some embodiments of the present invention;

FIG. 19 is a schematic diagram of an oil-based material handling system circuit connection according to some embodiments of the present invention;

FIG. 20 is a flow chart of a method of treating an oil-based material according to some embodiments of the present invention;

FIG. 21 is a flow chart of a method of treating an oil-based material according to further embodiments of the present invention;

FIG. 22 is a flow chart of a method of treating an oil-based material according to still further embodiments of the present invention;

fig. 23 is a flow chart of a method of treating an oil-based material according to still further embodiments of the present invention.

Reference numerals: 100-an oil-based material handling system; 1-a thermal desorption device; 101-a furnace body; 1011—a feed inlet; 1012-a solid material outlet; 1013-gaseous material outlet; 1014-nitrogen inlet; 102-a second induction coil; 103-a stirring shaft assembly; 1031-a stirring shaft; 10311-a stirring shaft body; 10312-supporting shaft; 10313-a first induction coil; 10314-insulating sleeve; 103141-first circular baffle; 103141 a-third mounting hole; 103142-second circular baffle; 103142 a-fourth mounting holes; 103143-support flaps; 10315-supporting the tube; 10316-annular support piece; 10317-a first heat-retaining layer; 1032-stirring paddles; 1032 a-a first paddle; 1032 b-a second paddle; 10321-a connector; 10322-stirring plate; 10323-a squeegee; 1033-a drive device; 104-coil support; 104 a-a first coil support; 104 b-a second coil support; 1041-an arcuate plate; 1042-first connection plate; 105-fixing frame; 1051-first connection aperture; 106-fixing sheets; 107-a second connection plate; 1071-a second connection hole; 108-a third connecting plate; 1081-a third connecting hole; 109-a second insulation layer; 2-a power supply; 3-a first temperature measuring instrument; 4-a second temperature measuring instrument; 5-a third temperature measuring instrument; 6-a thermal desorption output treatment device; 61-a first condenser; 62-a first reservoir; 63-a second condenser; 64-a second reservoir; 65-a first valve component; 651-first valve; 652-second valve; 7-vacuumizing device; 8-a discharging device; 81-a first screw conveyor; 82-a cooler; 83-a discharge valve; 9-a feeding device; 91-hopper; 92-a second screw conveyor; 93-a transfer pump; 94-a feed valve; 10-cooling device.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, some embodiments of the present invention provide an oil-based material processing system 100 that includes a thermal desorption apparatus 1 and a power source 2. The power supply 2 is electrically connected to the second induction coil 102 in the thermal desorption device 1 for supplying an electric signal to the second induction coil 102.

Referring to fig. 1, some embodiments of the present invention provide a thermal desorption apparatus 1, which includes a furnace body 101, at least one second induction coil 102, and a stirring shaft assembly 103.

Referring to fig. 1 to 4, the furnace body 101 includes a feed port 1011, a solid material outlet 1012, and a gaseous material outlet 1013.

Illustratively, the furnace body 101 is a horizontal pot-shaped furnace body, and the cross section is circular, so that the oil-based material can conveniently move from one end to the other end of the furnace body 101 at a controllable speed of the stirring shaft assembly 103, and thus the oil-based material is subjected to more sufficient thermal desorption treatment.

It should be noted that, in other embodiments, the furnace body 101 may be a vertical furnace body, and thermal desorption treatment of the oil-based material may be also implemented.

Illustratively, the material of the furnace body 101 is ferrite material, so that the magnetic permeability is good, and the heating efficiency of the oil-based material is improved, so as to ensure the thermal desorption treatment effect of the oil-based material.

The material of the furnace body 101 may be other magnetically permeable material, and electromagnetic heating may be realized.

Illustratively, as shown in fig. 1-4, the feed port 1011 is located at the top of the furnace 101, the solid material outlet 1012 is located at the bottom of the furnace 101, and the gaseous material outlet 1013 is located at the top of the furnace 101, thus facilitating feeding and discharging.

Referring to fig. 1, a second induction coil 102 is disposed on an outer wall of a furnace body 101.

Illustratively, the second induction coil 102 may be wound on the outer wall of the furnace body 101 such that the entire furnace wall of the furnace body 101 heats up; or, the second induction coil 102 may be disposed on the outer wall of the furnace body 101 in other forms, so that a part of the furnace wall of the furnace body 101 heats, and the material inside the furnace body 101 can be heated.

Illustratively, the second induction coil 102 may be in contact with the furnace body 101; or the second induction coil 102 and the furnace body 101 can not be contacted, and corresponding technical problems can be solved.

Referring to fig. 1 and 4, a stirring shaft 1031 in the stirring shaft assembly 103 penetrates through the furnace body 101, and stirring paddles 1032 in the stirring shaft assembly 103 are located in the furnace body 101.

Illustratively, the stirring shaft 1031 is rotatably connected to the furnace body 101 via bearings, which facilitate stirring of the oil-based material, and which also improve the reliability of the rotatable connection between the stirring shaft 1031 and the furnace body 101.

The thermal desorption device 1 provided by the invention comprises a furnace body 101, a second induction coil 102 and a stirring shaft assembly 103, so that a magnetic field generated after the second induction coil 102 is electrified can generate vortex in the furnace wall of the furnace body 101, so that the furnace wall heats oil-based materials to be treated filled in the furnace body 101, and when the temperature in the furnace body 101 reaches the boiling point of water or oil in the oil-based materials, the water or oil evaporates from the oil-based materials to form steam, thereby realizing thermal desorption treatment of the oil-based materials. The thermal desorption device 1 provided by the invention carries out thermal desorption treatment on the oil-based materials through electromagnetic heating, so that the thermal desorption device can be applied to an operation site with limited open fire and has a wide application range.

Referring to fig. 5-7, some embodiments of the present invention provide a stirring shaft assembly 103 as described above, including the stirring shaft 1031 as described above and a plurality of stirring paddles 1032 as described above. The stirring paddles 1032 are spirally arranged on the stirring shaft 1031 and are connected with the stirring shaft 1031; wherein the stirring paddle 1032 has a stirring surface for pushing the material, and the stirring surfaces of the plurality of stirring paddles form a part of at least one helicoid M.

Illustratively, the paddles 1032 and the stirring shaft 1031 may be welded; alternatively, the stirring blade 1032 may be detachably connected to the stirring shaft 1031. The invention is not limited in this regard.

For example, as shown in fig. 7, the spiral surface M may be one, that is, all stirring surfaces of the stirring paddles 1032 are on the same spiral surface, and in this case, the solid material outlet 1012 of the furnace 101 may be located at any position at the bottom of the furnace 101; alternatively, as shown in fig. 6, the number of spiral surfaces M may be plural, that is, the spiral surfaces M may be plural spiral surfaces arranged side by side with the same rotation direction, or plural spiral surfaces with opposite rotation directions. When the spiral surfaces M are spiral surfaces with opposite rotation directions, the spiral surfaces with different rotation directions extend from the center of the stirring shaft 1031 to two ends, and at this time, as shown in fig. 4, the solid material outlet 1012 of the furnace body 101 needs to be located at a position corresponding to the junction of the bottom of the furnace body 101 and the spiral surfaces with different rotation directions.

Illustratively, as shown in FIG. 7, the helicoid M may be a standard helicoid, i.e., each of the helicoids is located within the helicoid M; alternatively, as shown in fig. 6, the spiral surface M may be an approximately standard spiral surface, that is, the stirring surface may rotate by a slight angle (for example, 5 °) relative to the standard spiral surface, so as to solve the technical problem that can be solved by the standard spiral surface.

According to the stirring shaft assembly 103 provided by the invention, the stirring surfaces of the stirring paddles 1032 in the stirring shaft assembly 103 form at least one intermittent spiral surface M extending along the axial direction of the stirring shaft 1031, so that when the stirring shaft 1031 rotates, the spiral surface M can push oil-based materials in the furnace body 101 along two opposite directions parallel to the axial direction of the stirring shaft 1031, and meanwhile, the stirring paddles 1032 can uniformly turn over the oil-based materials, so that the oil-based materials can be uniformly heated, and the phenomenon that the thermal desorption treatment effect is influenced due to accumulation and hardening of the materials can be prevented.

Referring to fig. 1 and 8, in some embodiments, the stirring shaft 1031 includes a stirring shaft body 10311, a support shaft 10312, and a first induction coil 10313. The stirring shaft body 10311 is provided with a first mounting hole, and the first mounting hole penetrates through the stirring shaft body 10311 along the axis of the stirring shaft body 10311; the stirring shaft body 10311 is connected to the stirring paddle 1032. The support shaft 10312 is disposed in the first mounting hole in a penetrating manner, is rotatably connected with the stirring shaft body 10311, and is fixedly connected with the furnace body 101. The first induction coil 10313 is located between the stirring shaft body 10311 and the supporting shaft 10312, and is wound on the outer wall of the supporting shaft 10312.

By the design, the magnetic field generated after the first induction coil 10313 is electrified can enable vortex flow to be generated in the stirring shaft body 10311, so that the stirring shaft body 10311 heats the oil-based materials to be treated filled in the furnace body 101, the heat exchange area is increased, and the heat efficiency is improved.

Illustratively, as shown in FIG. 1, the power source 2 is electrically connected to the first induction coil 10313 in the stirring axle assembly 103 for providing an electrical signal to the first induction coil 10313.

The support shaft 10312 and the stirring shaft body 10311 are coaxial, and the support shaft 10312 and the stirring shaft body 10311 are connected through bearings, namely, the outer circular surface of the support shaft 10312 is in interference fit with the inner circular surface of the bearings, and the stirring shaft body 10311 is in interference fit with the outer circular surface of the bearings, so that the installation is simple and convenient, and the connection is reliable.

Illustratively, the first induction coil 10313 may be uniformly helically wound from one end of the induction cable self-supporting shaft 10312 to the other; alternatively, the first induction coil 10313 may be uniformly wound from one end to the other end of the support shaft 10312 by two or more induction cables.

Referring to fig. 4, 9-11, in some embodiments, a stirring shaft 1031 includes a stirring shaft body 10311, an insulating sleeve 10314, a support tube 10315, and a first induction coil 10313. The stirring shaft body 10311 is provided with a first mounting hole, and the first mounting hole penetrates through the stirring shaft body 10311 along the axis of the stirring shaft body 10311; the stirring shaft body 10311 is connected to the stirring paddle 1032. The insulating sleeve 10314 is disposed through the first mounting hole. The supporting tube 10315 is arranged through the insulating sleeve 10314 in a penetrating way, is rotationally connected with the stirring shaft body 10311, and is fixedly connected with the furnace body 101; the support tube 10315 is provided with a second mounting hole penetrating the wall of the support tube 10315. A part of the first induction coil 10313 is penetrated into the support tube 10315, and the other part is penetrated out of the support tube 10315 through the second mounting hole, is positioned between the stirring shaft body 10311 and the insulation sleeve 10314, and is wound on the outer wall of the insulation sleeve 10314.

By the design, the magnetic field generated after the first induction coil 10313 is electrified can enable vortex flow to be generated in the stirring shaft body 10311, so that the stirring shaft body 10311 heats the oil-based materials to be treated filled in the furnace body 101, the heat exchange area is increased, and the heat efficiency is improved. In addition, the insulating sleeve 10314 and the support tube 10315 are hollow tubes, are lightweight, and facilitate heat dissipation from the first induction coil 10313.

The insulating sleeve 10314, the supporting tube 10315 and the stirring shaft body 10311 are coaxial, the supporting tube 10315 and the stirring shaft body 10311 are connected through bearings, namely, the outer circular surface of the supporting tube 10315 is in interference fit with the inner circular surface of the bearings, and the stirring shaft body 10311 is in interference fit with the outer circular surface of the bearings, so that the installation is simple and convenient, and the connection is reliable.

Referring to fig. 12, in some embodiments, the first induction coil 10313 is formed by winding a water-cooled copper tube, the interior cavity of which is used to communicate cooling water. Thus, the magnetic field can be generated by introducing current into the water-cooling copper pipe, and the water-cooling copper pipe can be cooled by cooling water, so that the service life of the first induction coil 10313 is prolonged, and the service life of the whole stirring shaft assembly 103 is prolonged.

Referring to fig. 10 and 13, in some embodiments, the insulation sleeve 10314 includes a first circular baffle 103141, a second circular baffle 103142, and a plurality of support baffles 103143. The first circular flap 103141 is provided with a third mounting hole 103141a. The second circular baffle 103142 is disposed opposite to the first circular baffle 103141, the second circular baffle 103142 has a fourth mounting hole 103142a, and the fourth mounting hole 103142a is in communication with the third mounting hole 103141a. Both ends of the supporting baffle 103143 are respectively connected with the first circular baffle 103141 and the second circular baffle 103142; the plurality of support flaps 103143 are distributed on the same circumference with a gap between two adjacent support flaps 103143, and the plurality of support flaps 103143 form the wall of the insulating sleeve 10314.

By adopting the design, the stability of the insulation sleeve 10314 on the supporting structure of the first induction coil 10313 formed by winding the water-cooling copper pipe can be guaranteed, the weight of the insulation sleeve 10314 can be reduced as much as possible, the weight of the stirring shaft assembly 103 is further reduced, and meanwhile, the structure is more convenient for radiating the first induction coil 10313.

Illustratively, the support flap 103143 can be fixedly coupled to the first circular flap 103141 and the second circular flap 103142; or the support flaps 103143 and the first circular flaps 103141 and the second circular flaps 103142 may be detachably connected, which is not limited in the present invention.

Illustratively, the third mounting hole 103141a and the fourth mounting hole 103142a are coaxially disposed, such that the support tube 10315 is coaxial with the insulation sleeve 10314 after passing through the third mounting hole 103141a and the fourth mounting hole 103142a, thereby reducing design and machining difficulties and facilitating installation.

Illustratively, the supporting ribs 103143 may be arcuate plates, and the radius of the tube wall formed by all the supporting ribs 103143 is the same as the radius of curvature of the arcuate plates; alternatively, the supporting ribs 103143 may be flat strips, and all the supporting ribs 103143 are circumferentially arranged along the first circular rib 103141 and the second circular rib 103142, so as to form the pipe wall of the insulating sleeve 10314.

Referring to fig. 11 and 14, in some embodiments, the stirring shaft 1031 further includes a plurality of annular supporting plates 10316 disposed in the inner cavity of the insulating sleeve 10314 and sleeved on the supporting tube 10315. By such design, the two ends of the insulation sleeve 10314 can support the first induction coil 10313 on the outer wall and the support tube 10315 in the hollow cavity without being closed.

Illustratively, as shown in fig. 14, the number of annular support pieces 10316 is four, disposed perpendicular to the axis of the insulating sleeve 10314. Four annular support pieces 10316 are arranged at equal intervals.

In some embodiments, the material of the insulating sleeve 10314 includes mica. Mica has the characteristics of insulation and high temperature resistance, and is used for manufacturing the insulation sleeve 10314, so that the insulation property of the insulation sleeve 10314 can be ensured, and the heat generated by electrifying the water-cooled copper pipe can be born, thereby ensuring the safety and reliability of the stirring shaft assembly 103.

Referring to fig. 8, 10 and 11, in some embodiments, the stirring shaft 1031 further includes a first insulation layer 10317, which is located between the water-cooled copper tube and the stirring shaft body 10311, and is coated on a tube wall of the water-cooled copper tube on a side close to the stirring shaft body 10311. In this way, the components inside the first mounting hole of the stirring shaft body 10311 can be prevented from being damaged by heat.

Referring to fig. 5 and 6, in some embodiments, the stirring paddle 1032 includes a connector 10321 and a stirring plate 10322. The connection members 10321 are spirally arranged on the stirring shaft 1031 and are connected with the stirring shaft 1031. One stirring board 10322 is detachably connected with one end, away from the stirring shaft 1031, of one connecting piece 10321, and the board surface of the stirring board 10322 is a stirring surface. In this way, the stirring plate 10322 is worn out and is convenient to replace.

Illustratively, the connector 10321 may be a connection plate; alternatively, the connection member 10321 may be a connection rod having a cylindrical shape. The invention is not limited in this regard.

Illustratively, when the connector 10321 is cylindrical, the stirring plate 10322 is in the same plane as the axis of the connector 10321, and in this plane, the length of the stirring plate 10322 in the direction perpendicular to the axis of the connector 10321 is greater than the diameter of the connector 10321. In this manner, the diameter of the connection 10321 may be smaller, which is both convenient to install and reduces friction between the connection 10321 and the oil-based material, thereby reducing the energy consumption of the stirring axle assembly 103.

It should be noted that, in other embodiments, the connection member 10321 and the stirring board 10322 may be welded; alternatively, the connecting member 10321 and the stirring plate 10322 may be integrally formed by pressing. The same applies.

Exemplary, stirring board 10322 and connecting piece 10321 can be connected through a plurality of bolts, set up a plurality of slotted holes that are used for the bolt to pass on stirring board 10322, and slotted hole extends along the direction of perpendicular to (mixing) shaft 1031, so, can adjust the length of stirring rake 1032 according to the internal diameter of furnace body 101 and the wearing and tearing condition of stirring board 10322, has strengthened the practicality of (mixing) shaft subassembly 103.

Referring to fig. 5 and 6, in some embodiments, the plurality of paddles 1032 includes two end paddles positioned on the stirring shaft 1031 near both ends, respectively, and a plurality of intermediate paddles positioned between the two end paddles. The end paddles further include a blade 10323 coupled to a side of the connecting member 10321 proximate the end of the stirring shaft 1031. In this way, the scraping plate 10323 can clean the material on the inner wall of the end cover of the furnace body 101, so as to prevent the material from piling up and hardening on the end of the furnace body 101.

Referring to fig. 5 and 6, in some embodiments, at least one helicoid M includes a first helicoid M1 and a second helicoid M2, the first helicoid M1 and the second helicoid M2 having opposite sense of rotation. The plurality of stirring paddles 1032 includes a plurality of first stirring paddles 1032a arranged in a spiral manner and a plurality of second stirring paddles 1032b arranged in a spiral manner. Wherein the stirring surfaces of the first stirring paddles 1032a form a part of the first screw plane M1, and the stirring surfaces of the second stirring paddles 1032b form a part of the second screw plane M2.

By the design, the first spiral surface M1 and the second spiral surface M2 are opposite in rotation direction, so that materials can be pushed to gradually move towards two end areas along the middle area of the furnace body 101 in the process of stirring the materials, and the first spiral surface M1 and the second spiral surface M2 are formed by the stirring plates 10322 positioned at the end parts of the stirring paddles 1032, so that the materials close to the furnace wall of the furnace body 101 move towards the end parts of the furnace body 101, the materials close to the stirring shaft 1031 are accumulated downwards under the action of gravity, a low-power efficient vortex environment is formed in the furnace body 101, and compared with the spiral surface with the same rotation direction, the frequency of reversing rotation of the stirring shaft 1031 can be reduced by the design, energy consumption is further saved, and the thermal desorption treatment effect is better and more efficient.

Illustratively, the length of the helical surface of the space between adjacent paddles 1032 is about 2 times the length of the stirring plate 10322. Thus, the effect of pushing the material by the stirring shaft assembly 103 can be ensured, and the increase of the resistance born by the stirring shaft assembly 103 due to the overlong length of the stirring plate 10322 can be avoided.

The number of the first spiral surfaces M1 may be one or more. The number of the second spiral faces M2 can be one or a plurality of, and corresponding technical problems can be solved.

Referring to fig. 6 and 7, in some embodiments, the connection 10321 is perpendicular to the stirring shaft 1031, and the angle β between the plate surface of the stirring plate 10322 and the axis of the stirring shaft 1031 is 30 ° to 45 °. In this way, the stirring board 10322 can push the oil-based material to move, and the connecting piece 10321 cannot bear excessive reaction force to deform or topple.

The angle β may be, for example, 30 ° or 40 ° or 45 °. The corresponding technical problems can be solved.

Referring to fig. 8, in some embodiments, the projections of all first paddles 1032a on a first plane are uniformly arranged along the circumference of the projection of the stirring axle 1031 on the first plane; the projections of all the second paddles 1032b on the first plane are uniformly arranged along the circumference of the projection of the stirring shaft 1031 on the first plane.

The connection members 10321 are connection bars, and projections of two adjacent connection members 10321 on the first plane are perpendicular to each other; wherein the first plane is perpendicular to the axis of the stirring shaft 1031. In this way, not only can all stirring boards 10322 push the oil-based materials to move in the furnace body 11, but also the design and installation difficulty of the connection between the connecting piece 10321 and the stirring shaft 131 are reduced.

It is noted that "vertical" includes the stated case as well as the case that is similar to the stated case, the range of which is within an acceptable deviation range as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, "vertical" includes absolute vertical and near vertical, where the acceptable deviation range for near vertical may also be, for example, deviations within 5 °.

Furthermore, in other embodiments, the angle α of projection of two adjacent connectors 10321 onto the first plane may be other angles (e.g., 30 ° or 45 ° or 60 ° or 75 °).

Referring to fig. 5 to 8, in some embodiments, in the case where the stirring paddle 1032 includes the connection member 10321 and the stirring plate 10322, a surface of the stirring plate 10322 away from the connection member 10321 is a cambered surface, and a distance between the cambered surface and the inner wall of the furnace body is the same throughout. In this way, the stirring board 10322 can be prevented from interfering with the inner wall of the furnace body 101 along with the rotation of the stirring shaft 1031, and the thickness of materials attached to the inner wall of the furnace body 101 due to the difference between the intervals between the cambered surface and the furnace body 101 can be prevented, so that the heat transfer efficiency between the furnace wall of the furnace body 101 and the oil-based materials is different, and the oil-based materials are heated unevenly to influence the thermal desorption treatment effect.

The distance between the cambered surface and the inner wall of the furnace body is 3 mm-5 mm. In this way, the hardening of the oil-based material on the inner wall of the furnace body 101 can be prevented to reduce the effective heat transferred from the furnace wall of the furnace body 101 to the oil-based material.

For example, the distance between the surface of the stirring plate 10322 far from the connecting piece 10321 and the inner wall of the furnace body 101 may be 3mm, 4mm or 5mm, which may solve the corresponding technical problems.

Referring to fig. 1, in some embodiments, a second induction coil 102 is wound on an outer wall of the furnace body 101.

Illustratively, the second induction coil 102 may be uniformly helically wound from one end of the furnace body 101 to the other end by one induction cable; alternatively, the second induction coil 102 may be uniformly wound from one end to the other end of the furnace body 101 by two or more induction cables.

When the number of the second induction coils 102 is plural, the winding manner of the plurality of induction cables may be parallel winding, that is, two adjacent induction cables are parallel to each other and have a certain gap; alternatively, the winding mode of the plurality of induction cables can be staggered winding, that is, the winding direction and the winding angle of each induction cable are different; alternatively, the winding manner of the plurality of induction cables may be other winding manners, which is not limited in the present invention, so long as it is ensured that the magnetic field is generated after the current is supplied to the at least one second induction coil 102.

Referring to fig. 15-18, in some embodiments, the thermal desorption apparatus 1 further includes at least one coil support 104 and a mount 105. At least one coil bracket 104 is buckled on the outer wall of one side of the furnace body 101 where the solid material outlet 1012 is located; the second induction coil 102 is wound on a coil support 104. The fixing frame 105 is detachably connected with the coil brackets, and an installation space for penetrating through the furnace body 101 is formed between the fixing frame 105 and at least one coil bracket 104.

Because the material can pile up in the latter half of furnace body 101 under the effect of gravity, detain on the solid material export 1012 of furnace body 101 place one side outer wall on set up coil support 104, twine second induction coil 102 on the coil support 104 for the magnetic field that produces after the second induction coil 102 circular telegram only acts on the part oven that second induction coil 102 was located, and the material in the furnace body 101 is heated to the oven of the latter half furnace body 101 promptly, so, can prevent the upper furnace body half oven and heat dry combustion method, the inhomogeneous deformation of heating.

The coil support 104 may be one or more, as long as the second induction coil 102 is supported.

It should be noted that the coil support 104 is designed and arranged to avoid the solid material outlet 1012 of the furnace body 101.

In the present invention, the fixing frame 105 and the coil bracket 104 are connected and then sleeved on the furnace body 101, so as to limit the relative movement between the second induction coil 102 and the furnace body 101. In other embodiments, the fixing frame 105 may be fixed on the frame of the whole system to support the coil support 104, which may solve the corresponding technical problem.

Referring to fig. 18, in some embodiments, the coil support 104 includes a plurality of arcuate plates 1041 disposed side by side and two first connecting plates 1042. A gap is formed between two adjacent arc plates 1041; the second induction coil 102 is disposed through at least a portion of the plurality of arcuate plates 1041. By such design, the coil bracket 104 has a light weight, and most of the second induction coil 102 is exposed in the air, so that the second induction coil 102 is convenient to be cooled by air cooling.

For example, the first connecting plate 1042 and the arcuate plate 1041 may be integrally formed; or the first connecting plate 1042 and the arc plate 1041 may be detachably connected. The invention is not limited in this regard.

For example, the second induction coil 102 may be a spiral coil formed by winding a cable sequentially through a plurality of arc plates 1041; alternatively, the second induction coil 102 may be formed by a plurality of nested loops formed by a plurality of cables passing through a portion of the arcuate plate 1041, which can solve the corresponding technical problem.

Referring to fig. 18, in some embodiments, the thermal desorption apparatus 1 includes two coil brackets 104. The fixing frame 105 is arc-shaped and spans on the outer wall of one side of the furnace body 101 away from the solid material outlet 1012, and two ends of the fixing frame 105 are detachably connected with the two coil brackets 104 respectively. The thermal desorption device 1 further comprises at least one fixing piece 106, and the fixing piece 106 is connected with the two coil brackets 104. In this way, the coil support 104 formed by the arc plate 1041 and the arc-shaped fixing frame 105 enclose a circular cavity matched with the outer wall of the furnace body 101, so that the stability of the coil support 104 and the fixing frame 105 is improved, and the design processing and installation difficulties are reduced. In addition, the positions of the two coil brackets 104 can be adjusted to flexibly adjust the position where the furnace wall of the furnace body 101 is required to generate heat, thereby improving the adaptability of the thermal desorption device 1.

Illustratively, the number of the fixing frames 105 is four, and the fixing frames are arranged at intervals along the axial direction of the furnace body 101. Therefore, the mounting difficulty between the fixing frame 105 and the coil bracket 104 can be reduced, and the mounting difficulty caused by overlarge accumulated error in the processing of the fixing frame 105 is avoided.

Illustratively, the mount 105 may be a flat plate with a circular slot; alternatively, the fixing frame 105 may be an arc plate bent from a flat plate to form an arc shape. The invention is not limited in this regard.

The fixing frame 105 and the coil support 104 may be detachably connected through a fixed connection piece, or may be detachably connected through a hanging connection or the like, which may solve the corresponding technical problem.

The fixing piece 106 may be an arc-shaped flat plate, and is connected to the ends of the two coil brackets 104 close to the cover of the furnace body 101. The fixing piece 106 may have other structures as long as it can connect the two coil brackets 104.

Illustratively, the fixing piece 106 is provided with an arc-shaped oblong hole coaxial with the furnace body 101, and a bolt passes through the oblong hole to be screwed with the coil bracket 104. Thus, when the coil brackets 104 are repositioned around the furnace body 101, the fixing pieces 106 can also connect the two coil brackets 104.

Referring to fig. 15 and 18, in some embodiments, a plurality of sets of first connection holes 1051 are respectively formed at two ends of the fixing frame 105, and the plurality of sets of first connection holes 1051 are spaced apart along an arc-shaped extension direction of the fixing frame 105. The two coil brackets 104 are a first coil bracket 104a and a second coil bracket 104b, respectively.

The thermal desorption apparatus 1 further includes a second connection plate 107, a third connection plate 108, a first fixed connection (not shown in the figure), and a second fixed connection (not shown in the figure). One end of the second connection plate 107 is connected to an end of the first coil bracket 104a away from the second coil bracket 104b, and the second connection plate 107 is provided with a second connection hole 1071. One end of the third connection plate 108 is connected to an end of the second coil bracket 104b remote from the first coil bracket 104a, and the third connection plate 108 is provided with a third connection hole 1081. The first fixing connector passes through the second connection hole 1071 and the first connection hole 1051 of one end portion of the fixing frame 105 to connect the second connection plate 107 with the fixing frame 105. The second fixing connector passes through the third connection hole 1081 and the first connection hole 1051 of the other end portion of the fixing frame 105 to connect the third connection plate 108 with the fixing frame 105.

When the oil-based material in the furnace body 101 evaporates along with the moisture and the oil, the height of the material is gradually reduced, and the first coil bracket 104a can be moved along the circumferential direction of the furnace body 101 by adjusting the second connecting hole 1071 to correspond to the first connecting hole 1051 at different positions, so that the heating position of the furnace wall of the furnace body 101 is correspondingly changed along with the movement of the first coil bracket 104 a; similarly, the heating position of the furnace wall of the furnace body 101 can be adjusted to correspondingly change along with the movement of the second coil support 104b. Therefore, the furnace wall of the furnace body 101 can be prevented from being heated at a position where heating is not required to be performed, thereby being dry-burned, heated unevenly, and deformed.

Illustratively, each set of first connecting apertures 1051 includes at least two first connecting apertures 1051.

The number of the second connection holes 1071 is plural, for example. The number of the third connection holes 1081 is plural.

The number of first fixing connectors is a plurality. The number of the second fixed connecting pieces is a plurality. In this way, the connection between the first coil support 104a and the second coil support 104b and the fixing frame 105 is more stable and reliable.

The first fixed connection is illustratively a bolt. The second fixed connecting piece is a bolt.

Referring to fig. 1, in some embodiments, the thermal desorption apparatus 1 further includes a second insulation layer 109, at least a portion of the second insulation layer 109 being located between the outer wall of the furnace body 101 and the second induction coil 102.

The second insulation layer 109 may be a structure mainly made of ceramic fiber wool and covered with glass fiber cloth. In this way, the heat loss of the processing system in the operation process can be reduced, the second induction coil 102 can be prevented from being damaged by being in direct contact with the furnace body 101, and the uniformity of the temperature in the furnace body 101 can be effectively improved.

Illustratively, the second insulating layer 109 wraps all of the furnace walls of the furnace body 101, and thus, the insulating effect is good.

Illustratively, the second insulating layer 109 is in contact with the outer wall of the furnace body 101, so that the insulating effect is better.

It should be noted that, in other embodiments, the second heat insulation layer 109 may not be in contact with the outer wall of the furnace body 101, and the heat insulation effect may be achieved.

Referring to fig. 1-3, in some embodiments, where the stirring axle 1031 includes a stirring axle body 10311 and a first induction coil 10313, the oil-based material handling system 100 further includes a plurality of first thermometry instruments 3, a plurality of second thermometry instruments 4, and a third thermometry instrument 5. A plurality of first temperature measuring instruments 3 are located in the furnace body 101 and connected with the stirring shaft body 10311, and the first temperature measuring instruments 3 are used for measuring a first heating temperature of the stirring shaft body 10311. A plurality of second thermometric apparatuses 4 are located on the wall of the furnace body 101, the second thermometric apparatuses 4 being used to measure a second heating temperature of the furnace body 101. The third temperature measuring instrument 5 is located at the gaseous material outlet 1013 for measuring the temperature of the gaseous material at the gaseous material outlet 1013. In this way, the temperature of the gaseous material in the furnace body 101, the temperature of the stirring shaft body 10311 and the temperature of the furnace wall of the furnace body 101 can be measured, the temperature conditions of the furnace body 101 and the stirring shaft body 10311 can be evaluated according to the temperatures measured by the first temperature measuring instrument 3 and the second temperature measuring instrument 4 so as to adjust the current introduced into the induction coil, the thermal deformation of the furnace body 101 and the stirring shaft 1031 is prevented, and the temperature conditions of the gaseous material in the furnace body 101 can be evaluated so as to adjust the current introduced into the induction coil in a segmented manner, so that different fractions in the oil-based material form steam in different time periods.

For example, the number of the first temperature measuring devices 3 is 6, and the first temperature measuring devices may be sequentially and intermittently distributed along the axis direction of the stirring shaft body 10311, and may also be sequentially and intermittently distributed along the rotation direction of the stirring shaft body 10311. Alternatively, the three first temperature measuring devices 3 are located on a semicircular surface on one side of the longitudinal section of the stirring shaft body 10311, are sequentially distributed at intervals along the axial direction of the stirring shaft body 10311, are sequentially distributed at intervals of 90 ° along the rotation direction of the stirring shaft body 10311, and the other three first temperature measuring devices 3 are located on a semicircular surface on the other side of the longitudinal section of the stirring shaft body 10311 and are arranged in one-to-one symmetry with the three first temperature measuring devices 3 about the axial line of the stirring shaft body 10311. In this way, the temperatures at a plurality of positions in the axial direction of the stirring shaft main body 10311 can be measured, and the distribution of the temperatures on the stirring shaft main body 10311 can be obtained.

For example, the number of the second temperature measuring instruments 4 is 6, and the second temperature measuring instruments are located at positions corresponding to the second induction coils 102 on the outer wall of the furnace body 101, and are sequentially distributed at intervals along the axis direction of the stirring shaft 1031, and may also be sequentially distributed at intervals along the rotation direction of the stirring shaft 1031. In this way, the temperatures of the furnace body 101 at a plurality of positions along the axis of the stirring shaft 1031 can be measured, and the temperature distribution of the furnace wall of the furnace body 101 can be easily obtained.

The first temperature measuring instrument 3, the second temperature measuring instrument 4 and the third temperature measuring instrument 5 are illustratively thermocouples. Alternatively, the first temperature measuring device 3, the second temperature measuring device 4, and the third temperature measuring device 5 may be other temperature measuring devices, as long as the corresponding temperatures can be measured, which is not limited in the present invention.

Referring to fig. 1-3, in some embodiments, a nitrogen inlet 1014 is provided in the furnace 101. The oil-based material processing system 100 further comprises an oxygen content detection device (not shown in the figure), wherein a detection end of the oxygen content detection device is located in the furnace body 101 and is used for detecting the oxygen content in the furnace body 101.

Therefore, before the oil-based materials are filled into the furnace body 101 each time, nitrogen is firstly input into the furnace body 101 for purging, so that the operation safety of equipment is ensured.

In some embodiments, the oil-based material handling system 100 further includes a torque sensor (not shown) disposed on the stirring shaft 1031 for detecting the torque of the stirring shaft 1031. Therefore, the evaporation condition of the water and oil of the oil-based material can be evaluated according to the measured torque of the stirring shaft 1031, so that the rotation speed of the stirring shaft 1031 can be adjusted, and the thermal desorption effect of the oil-based material can be ensured.

It should be noted that, as shown in fig. 1, in some embodiments, the torque of the stirring shaft 1031 may also be obtained according to the current change of the driving device 1033 that drives the stirring shaft 1031 to rotate, which may also solve the corresponding technical problem.

Referring to fig. 1, in some embodiments, the oil-based material processing system 100 further includes a thermal desorption output processing device 6 including a first condenser 61, a first tank 62, a second condenser 63, a second tank 64, and a first valve assembly 65. The first condenser 61 is connected in series between the gaseous material outlet 1013 and the first liquid tank 61. The second condenser 63 is connected in series between the gaseous material outlet 1013 and the second liquid reservoir 64. The first valve assembly 65 is connected between the gaseous material outlet 1013 and the first condenser 61, and between the gaseous material outlet 1013 and the second condenser 63, and the first valve assembly 65 is used for controlling the gaseous material outlet 1013 to be communicated with the first condenser 61 or the second condenser 63. In this manner, gaseous material outlet 1013 may be controlled to communicate with one condenser and not the other condenser by first valve assembly 65; thus, according to different time phases of generating water vapor and oil vapor in the thermal desorption process, the two distillate gases can be respectively oriented to enter the two condensers, so that the oil water is independently recovered for recycling. The two condensers can be mutually standby, so that the long-term stable operation of the treatment system is ensured.

Illustratively, the gaseous material outlet 1013 is in communication with the first condenser 61 via a conduit, and the gaseous material outlet 1013 is in communication with the second condenser 63 via a conduit. The first valve assembly 65 includes a first valve 651 disposed in the inlet line of the first condenser 61 and a second valve 652 disposed in the inlet line of the second condenser 63 to control the conduction state between the gaseous material outlet 1013 and the first condenser 61 and the second condenser 63.

In some embodiments, the thermal desorption device 1 further comprises a steam filter (not shown in the figure) located at the gaseous material outlet 1013 to filter dust carried in the steam.

Referring to fig. 1, in some embodiments, the oil-based material handling system 100 further includes a vacuum evacuation device 7 in communication with at least one of the first and second reservoirs 62, 64 for evacuating at least the interior of the furnace body 101.

Therefore, the working condition of vacuum negative pressure can be generated in the furnace body 101 (for example, the vacuum degree in the furnace body 101 reaches-95 kPa), the temperature required by the oil-based material in the thermal desorption process can be reduced (for example, the boiling point of water can be reduced by 20 ℃, the boiling point of oil can be reduced by 50 ℃), the energy consumption can be effectively reduced while the gas generated by cracking at high temperature is reduced, the quality of the recovered oil is improved, the heating temperature of the furnace body 101 and the stirring shaft body 10311 can be reduced, and the service life of the metal material is prolonged.

The evacuation device 7 communicates with at least one of the first and second tanks 62, 64 so that a vacuum can be drawn on the entire processing system to ensure the reliability of the processing system.

Illustratively, the first liquid storage tank 62 and the second liquid storage tank 64 may be communicated, so that the vacuumizing device 7 may be communicated with the whole system by communicating with one liquid storage tank, so that the vacuumizing in the furnace body 101 is facilitated, and non-condensable gas in the vapor produced by thermal desorption is also conveniently pumped for subsequent treatment.

Referring to fig. 1, in some embodiments, the oil-based material handling system 100 further includes an outfeed device 8 and a infeed device 9.

The discharging device 8 comprises a first screw conveyor 81 and a cooler 82, wherein the first screw conveyor 81 is communicated with a solid material outlet 1012; the cooler 82 is connected to the first screw conveyor 81 to cool the first screw conveyor 81. In this way, the solid material subjected to the thermal desorption treatment discharged from the furnace body 101 can be conveyed to a designated place or a vehicle for subsequent treatment by the first screw conveyor 81.

For example, the cooler 82 may be a closed cooling tower. The heat exchange of the fluid medium for cooling in the cooling tower is mainly realized by a cooling mode of air cooling and water cooling.

Illustratively, a discharge valve 83 is provided at the solid material outlet 1012 to control the open and closed states of the solid material outlet 1012.

The feeding device 9 includes a hopper 91, a second screw conveyor 92, and a transfer pump 93, wherein an outlet of the hopper 91 is communicated with an inlet of the second screw conveyor 92, an outlet of the second screw conveyor 92 is communicated with the feed port 1011, and the transfer pump 93 is connected between the outlet of the second screw conveyor 92 and the feed port 1011. In this way, the oil-based material to be treated can be conveyed to the feed port 1011 by the second screw conveyor 92 and injected into the furnace body 101 by the conveying pump 93 for treatment.

Illustratively, a feed valve 94 is provided at the feed port 1011 to control the open and closed state of the feed port 1011.

Referring to fig. 19, in some embodiments, the oil-based material handling system 100 further comprises a cooling device 10 in communication with the power source 2 and the water-cooled copper tubing for cooling the power source 2 and the water-cooled copper tubing.

The power supply 2 comprises, for example, a first power supply 2a and a second power supply 2b. The first power supply 2a is electrically connected with the water-cooled copper pipe and is used for supplying current to the water-cooled copper pipe. The second power supply 2b is electrically connected to the second induction coil 102 for supplying a current to the second induction coil 102. The power of the first power supply 2a is 60KW, and the power of the second power supply 2b is 200KW.

Illustratively, the cooling device 10 communicates with the cooling jackets of the first power source 2a and the second power source 2b simultaneously, and water-cools the first power source 2a and the second power source 2b.

Illustratively, the cooling device 10 is in communication with a cavity of a water cooled copper tube for water cooling the water cooled copper tube.

Referring to fig. 20, some embodiments of the present invention provide a method for treating an oil-based material, which is applied to the oil-based material treatment system 100 according to any one of the above embodiments, and the method includes the following steps:

s100: the oil-based material to be treated is filled into the furnace body 101 from the feed port 1011.

S200: the agitator shaft assembly 103 is activated to agitate the oil-based material to be treated.

S300: a first current is fed to the second induction coil 102 so that the furnace body 101 heats the oil-based material to be treated to form distillate steam (water steam or oil steam) and solid materials; the distillate vapors are discharged from gaseous materials outlet 1013 and the solid materials are discharged from solid materials outlet 1012.

In step S100 and step S200, step S100 may be performed first, and step S200 may be performed again; alternatively, step S100 and step S200 may be performed simultaneously, and the present invention is not limited thereto.

In step S200 and step S300, step S200 may be performed first, step S300 may be performed first, or step S200 and step S300 may be performed simultaneously, which is not limited by the present invention.

The oil-based material processing method provided by the invention can also produce the same technical effects and solve the same technical problems due to the application of the oil-based material processing system 100 in any embodiment, and the description is omitted herein.

Referring to fig. 21, in some embodiments, where the oil-based material processing system 100 includes a torque sensor, after activating the agitator shaft assembly 103 to agitate the oil-based material to be processed, the processing method further comprises:

S201: the torque of the stirring shaft 1031 measured by the torque sensor is received.

S202: according to the torque of the stirring shaft 1031 measured by the torque sensor, the rotation speed of the stirring shaft 1031 is adjusted so that the rotation speed is positively correlated with the torque.

For example, the rotation speed of the stirring shaft 1031 is 15-30r/min, the initial rotation speed of the stirring shaft 1031 is 15r/min, when the moisture and the oil in the oil-based material begin to evaporate, the oil-based material gradually becomes viscous, so the torque of the stirring shaft 1031 measured by the torque sensor is increased, and in order to prevent the oil-based material from being adhered, the rotation speed of the stirring shaft 1031 is increased according to the torque of the stirring shaft 1031 measured by the torque sensor, so that the oil-based material is heated uniformly to ensure the treatment effect.

In some embodiments, after receiving the torque of the stirring shaft 1031 measured by the torque sensor, the processing method further includes, before adjusting the rotational speed of the stirring shaft 1031 according to the torque of the stirring shaft 1031 measured by the torque sensor: if it is determined that the torque of the stirring shaft 1031 exceeds the torque threshold value, the steering of the stirring shaft 1031 is adjusted. In this way, the stirring shaft 1031 can be prevented from being stuck, resulting in a failure of the processing system.

It should be noted that, in other embodiments, the stirring shaft 1031 may be set to turn according to a set frequency, so that the oil-based material is turned and copied uniformly, heated more uniformly, and the treatment effect is ensured.

Referring to fig. 22, in some embodiments, where the oil-based material processing system 100 further includes the first induction coil 10313, the first thermometry instrument 3, the second thermometry instrument 4, and the third thermometry instrument 5, the processing method further comprises:

s401: a second current is supplied to the first induction coil 10313.

S402: the first heating temperature of the stirring shaft body 10311 measured by the first temperature measuring instrument 3, the second heating temperature of the furnace body 101 measured by the second temperature measuring instrument 4, and the gaseous material temperature at the gaseous material outlet 1013 measured by the third temperature measuring instrument 5 are received.

S403: if it is determined that the first heating temperature and the second heating temperature are both within the first preset range, the current flowing into the second induction coil 102 and the first induction coil 10313 is maintained until the gaseous material temperature reaches the first temperature threshold.

S404: the current supplied to the second induction coil 102 and the first induction coil 10313 is increased.

S405: if it is determined that the first heating temperature and the second heating temperature are both within the second preset range, the current flowing into the second induction coil 102 and the first induction coil 10313 is maintained until the gaseous material temperature reaches the second temperature threshold.

The first preset range is smaller than the second preset range, and the first temperature threshold is smaller than the second temperature threshold.

The first preset range is 100-120 ℃, and the first heating temperature and the second heating temperature are in the temperature range, so that the water in the oil-based material can be evaporated, the oil is not evaporated, and the water can be collected independently.

Illustratively, the first temperature threshold is about 55 ℃. When the water in the oil-based material evaporates, the temperature of the water vapor at the gaseous material outlet 1013 is about 75 ℃, and as the water vapor evaporated from the oil-based material decreases, the gas pressure in the furnace body 101 gradually decreases, and when the temperature of the water vapor at the gaseous material outlet 1013 decreases to about 55 ℃, the water in the oil-based material can be considered to be substantially completely evaporated.

The second preset range is 380-420 ℃, and the first heating temperature and the second heating temperature are in the temperature range, so that the oil in the oil-based material can be evaporated, and the moisture in the oil-based material is evaporated substantially completely, so that the oil can be collected independently.

Illustratively, the second temperature threshold is around 150 ℃. When the oil in the oil-based material evaporates, the temperature of the oil vapor at the gaseous material outlet 1013 is about 300 ℃, and as the oil vapor evaporated from the oil-based material decreases, the gas pressure in the furnace body 101 gradually decreases, and when the temperature of the oil vapor at the gaseous material outlet 1013 decreases to about 150 ℃, the oil in the oil-based material can be considered to be substantially completely evaporated.

It should be noted that, in other embodiments, the liquid level change in the liquid storage tanks may be detected by installing a liquid level meter in the two liquid storage tanks, and it may also be possible to determine whether the evaporation of the water or oil is complete.

In summary, the two induction coils are simultaneously supplied with current, so that the furnace wall of the furnace body 101 and the stirring shaft body 10311 can simultaneously heat the oil-based material, thereby increasing the heat exchange area and improving the heat efficiency. And through the control of the current flowing in the two coils, the water and the oil can be independently collected in a time-sharing way so as to be recycled.

Referring to fig. 23, in some embodiments, where the furnace body 101 is provided with a nitrogen gas inlet 1014, and the oil-based material processing system 100 further includes an oxygen content detection device, the processing method further includes:

s501: the oxygen content in the furnace body 101 detected by the oxygen content detecting device is received.

S502: if the oxygen content detected by the oxygen content detection device exceeds the oxygen content threshold, nitrogen is input into the furnace body 101 to remove the oxygen in the furnace body 101 from the furnace body 101.

For example, the oxygen content threshold is 6%, that is, if the oxygen concentration value in the furnace 101 exceeds 6%, the oxygen in the furnace 101 must be removed to prevent explosion caused by mixing of oil vapor and oxygen during the thermal desorption process.

Illustratively, steps S501 and S502 are advanced before step S100 is performed. Thus, the safe operation of the processing system can be ensured.

The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. A stirring shaft assembly, comprising:

a stirring shaft; and

the stirring paddles are arranged on the stirring shaft in a screw manner and are connected with the stirring shaft;

wherein the stirring paddles are provided with stirring surfaces for pushing materials, and the stirring surfaces of the stirring paddles form a part of at least one spiral surface;

the stirring shaft comprises:

the stirring shaft body is provided with a first mounting hole, and the first mounting hole penetrates through the stirring shaft body along the axis of the stirring shaft body; the stirring shaft body is connected with the stirring paddle;

the insulating sleeve is arranged in the first mounting hole in a penetrating way;

The support tube penetrates through the insulating sleeve and is rotationally connected with the stirring shaft body; the support tube is provided with a second mounting hole penetrating through the wall of the support tube; and

and one part of the first induction coil penetrates through the supporting tube, and the other part of the first induction coil penetrates out of the supporting tube through the second mounting hole, is positioned between the stirring shaft body and the insulating sleeve and is wound on the outer wall of the insulating sleeve.

2. The stirring shaft assembly of claim 1, wherein the first induction coil is formed by winding a water-cooled copper tube, and an inner cavity of the water-cooled copper tube is used for communicating cooling water.

3. The stirring shaft assembly of claim 2, wherein the insulating sleeve comprises:

the first round baffle plate is provided with a third mounting hole;

the second round baffle plate is arranged opposite to the first round baffle plate, a fourth mounting hole is formed in the second round baffle plate, and the fourth mounting hole is communicated with the third mounting hole; and

the two ends of the supporting baffle plates are respectively connected with the first round baffle plate and the second round baffle plate; the support baffle plates are distributed on the same circumference, gaps are reserved between two adjacent support baffle plates, and the support baffle plates form the pipe wall of the insulating sleeve.

4. The stirring shaft assembly of claim 2, wherein the stirring shaft further comprises:

the annular supporting pieces are arranged in the inner cavity of the insulating sleeve and sleeved on the supporting tube.

5. The stirring shaft assembly of claim 2, wherein the stirring shaft further comprises:

the first heat preservation layer is positioned between the water-cooling copper pipe and the stirring shaft body and is coated on the pipe wall of one side of the water-cooling copper pipe, which is close to the stirring shaft body.

6. The stirring shaft assembly of any one of claims 1-5, wherein the stirring paddle comprises:

the connecting pieces are spirally arranged on the stirring shaft and are connected with the stirring shaft; and

the stirring plate is detachably connected with one end, far away from the stirring shaft, of the connecting piece, and the plate surface of the stirring plate is the stirring surface.

7. The stirring shaft assembly of claim 6, wherein the plurality of paddles comprises: two end paddles and a plurality of intermediate paddles positioned between the two end paddles;

the end paddle further comprises: and the scraping plate is connected with one side of the connecting piece, which is close to the end part of the stirring shaft.

8. A mixer shaft assembly as set forth in claim 6 wherein,

at least one of the helicoids comprises a first helicoid and a second helicoid, the first helicoid and the second helicoid are in opposite directions of rotation;

the plurality of paddles includes: a plurality of first stirring paddles which are sequentially arranged in a spiral manner and a plurality of second stirring paddles which are sequentially arranged in a spiral manner; wherein the stirring surfaces of the plurality of first stirring paddles form part of the first helicoid and the stirring surfaces of the plurality of second stirring paddles form part of the second helicoid.

9. A mixer shaft assembly as set forth in claim 6 wherein,

the connecting piece is perpendicular to the stirring shaft, and an included angle between the plate surface of the stirring plate and the axis of the stirring shaft is 30-45 degrees.

10. A mixer shaft assembly as set forth in claim 8 wherein,

the projections of all the first stirring paddles on a first plane are uniformly distributed along the circumference of the projection of the stirring shaft on the first plane;

and the projections of all the second stirring paddles on the first plane are uniformly distributed along the circumference of the projection of the stirring shaft on the first plane.

11. A thermal desorption apparatus, comprising:

The furnace body comprises a feed inlet, a solid material outlet and a gaseous material outlet;

the second induction coil is arranged on the outer wall of the furnace body; and

a stirring shaft assembly according to any one of claims 1 to 10; the stirring shaft in the stirring shaft assembly penetrates through the furnace body, and the stirring paddle in the stirring shaft assembly is positioned in the furnace body.

12. The thermal desorption apparatus as defined in claim 11, wherein,

under the condition that the stirring paddle comprises a connecting piece and a stirring plate, the surface of the stirring plate, which is far away from the connecting piece, is a cambered surface, and the distances between the cambered surface and the inner wall of the furnace body are the same;

the distance between the cambered surface and the inner wall of the furnace body is 3 mm-5 mm.

13. The thermal desorption apparatus of claim 11, wherein the second induction coil is wound on the outer wall of the furnace body.

14. The thermal desorption device of claim 11, wherein the thermal desorption device further comprises:

at least one coil bracket buckled on the outer wall of one side of the furnace body where the solid material outlet is located; the second induction coil is wound on the coil bracket; and

The fixing frame is detachably connected with the coil brackets, and an installation space for penetrating the furnace body is formed between the fixing frame and at least one coil bracket.

15. The thermal desorption apparatus of claim 14, wherein the coil carrier comprises:

a plurality of arc plates arranged side by side, and a gap is reserved between two adjacent arc plates; and

the two first connecting plates are respectively connected with the two ends of each arc-shaped plate;

wherein, the second induction coil wears to establish a plurality of at least a portion in the arc.

16. The thermal desorption apparatus as defined in claim 15, wherein,

the thermal desorption device comprises two coil brackets; the fixing frame is arc-shaped and is arranged on the outer wall of one side of the furnace body away from the solid material outlet in a straddling manner; two ends of the fixing frame are detachably connected with the two coil brackets respectively;

the thermal desorption apparatus further includes:

and at least one fixing piece, wherein the fixing piece is connected with the two coil brackets.

17. The thermal desorption apparatus as defined in claim 16, wherein,

a plurality of groups of first connecting holes are respectively formed in two end parts of the fixing frame, and the plurality of groups of first connecting holes are arranged at intervals along the arc-shaped extending direction of the fixing frame;

The two coil supports are a first coil support and a second coil support respectively;

the thermal desorption apparatus further includes:

one end of the second connecting plate is connected with the end part of the first coil bracket far away from the second coil bracket, and a second connecting hole is formed in the second connecting plate;

one end of the third connecting plate is connected with the end part of the second coil bracket far away from the first coil bracket, and a third connecting hole is formed in the third connecting plate;

the first fixing connecting piece passes through the second connecting hole and the first connecting hole at one end part of the fixing frame to connect the second connecting plate with the fixing frame; and

the second fixed connecting piece passes through the third connecting hole and the first connecting hole at the other end part of the fixing frame to connect the third connecting plate with the fixing frame.

18. The thermal desorption device of any one of claims 11 to 17, wherein the thermal desorption device further comprises:

and at least one part of the second heat preservation layer is positioned between the outer wall of the furnace body and the second induction coil.

19. An oil-based material handling system, comprising:

a thermal desorption apparatus as claimed in any one of claims 11 to 18; and

and the power supply is electrically connected with a second induction coil in the thermal desorption device and is used for providing an electric signal for the second induction coil.

20. The oil-based material handling system of claim 19 wherein,

in the case where the stirring shaft includes a stirring shaft body and a first induction coil, the oil-based material handling system further includes:

the first temperature measuring instruments are positioned in the furnace body and connected with the stirring shaft body, and are used for measuring the first heating temperature of the stirring shaft body;

the second temperature measuring instruments are positioned on the wall of the furnace body and are used for measuring the second heating temperature of the furnace body; and

and the third temperature measuring instrument is positioned at the gaseous material outlet and is used for measuring the temperature of the gaseous material at the gaseous material outlet.

21. The oil-based material handling system of claim 19 or 20 wherein,

the furnace body is provided with a nitrogen input port for receiving nitrogen;

The oil-based material treatment system further comprises an oxygen content detection device, wherein the detection end of the oxygen content detection device is positioned in the furnace body, and the oxygen content detection device is used for detecting the oxygen content in the furnace body.

22. The oil-based material handling system of claim 19 or 20, wherein the oil-based material handling system further comprises:

and the torque sensor is arranged on the stirring shaft and used for detecting the torque of the stirring shaft.

23. The oil-based material handling system of claim 19 or 20, wherein the oil-based material handling system further comprises:

the first condenser is connected in series between the gaseous material outlet and the first liquid storage tank;

the second condenser is connected in series between the gaseous material outlet and the second liquid storage tank; and

the first valve component is connected between the gaseous material outlet and the first condenser and between the gaseous material outlet and the second condenser, and is used for controlling the gaseous material outlet to be communicated with the first condenser or the second condenser.

24. The oil-based material handling system of claim 23, further comprising a vacuum device in communication with at least one of the first and second reservoirs, the vacuum device for evacuating at least the interior of the furnace.

25. The oil-based material handling system of claim 19 or 20, wherein the oil-based material handling system further comprises:

the discharging device comprises a first screw conveyor and a cooler, and the first screw conveyor is communicated with the solid material outlet; the cooler is connected with the first screw conveyor to cool the first screw conveyor; and

the feeding device comprises a hopper, a second screw conveyer and a conveying pump, wherein an outlet of the hopper is communicated with an inlet of the second screw conveyer, an outlet of the second screw conveyer is communicated with the feeding hole, and the conveying pump is connected between an outlet of the second screw conveyer and the feeding hole.

26. A method of oil-based material treatment, as applied to the oil-based material treatment system of any one of claims 19-25, the method comprising:

Filling oil-based materials to be treated into the furnace body from the feed inlet;

starting a stirring shaft assembly to stir the oil-based material to be treated; and

introducing a first current into the second induction coil so that the furnace body heats the oil-based material to be treated to form distillate steam and solid materials; the fraction vapor is discharged from the gaseous material outlet, and the solid material is discharged from the solid material outlet.

27. The method of oil-based material treatment as claimed in claim 26, wherein,

in the case where the oil-based material handling system includes a torque sensor, after the stirring shaft assembly is activated to stir the oil-based material to be handled, the method further includes:

receiving the torque of the stirring shaft measured by the torque sensor; and

and adjusting the rotating speed of the stirring shaft according to the torque of the stirring shaft, which is measured by the torque sensor, so that the rotating speed is positively related to the torque.

28. The oil-based material processing method according to claim 27, wherein after said receiving the torque of said stirring shaft measured by said torque sensor, said method further comprises, before adjusting the rotational speed of said stirring shaft based on the torque of said stirring shaft measured by said torque sensor:

And if the torque of the stirring shaft exceeds the torque threshold value, adjusting the steering of the stirring shaft.

29. The oil-based material treatment method of any one of claims 26-28, wherein, in the case where the oil-based material treatment system further comprises a first induction coil, a first thermometry instrument, a second thermometry instrument, and a third thermometry instrument, the method further comprises:

passing a second current through the first induction coil;

receiving a first heating temperature of the stirring shaft body measured by the first temperature measuring instrument, a second heating temperature of the furnace body measured by the second temperature measuring instrument and a gaseous material temperature at the gaseous material outlet measured by the third temperature measuring instrument;

if the first heating temperature and the second heating temperature are both in the first preset range, keeping the current which is fed into the second induction coil and the first induction coil until the temperature of the gaseous material reaches a first temperature threshold;

increasing the current flowing into the second induction coil and the first induction coil; and

if the first heating temperature and the second heating temperature are both in the second preset range, keeping the current which is fed into the second induction coil and the first induction coil until the temperature of the gaseous material reaches a second temperature threshold;

30. The oil-based material treatment method according to any one of claims 26 to 28, wherein a nitrogen gas inlet is provided on the furnace body, and the oil-based material treatment system further comprises an oxygen content detection device, the method further comprising:

receiving the oxygen content in the furnace body detected by the oxygen content detection device; and

if the oxygen content detected by the oxygen content detection device exceeds the oxygen content threshold, inputting nitrogen into the furnace body so as to remove oxygen in the furnace body out of the furnace body.