CN211688746U

CN211688746U - Preprocessing device for dirty oil sludge

Info

Publication number: CN211688746U
Application number: CN202020028036.1U
Authority: CN
Inventors: 李斐; 王平
Original assignee: Cangzhou Xinchang Chemical Corp
Current assignee: Xinchang Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-10-16
Anticipated expiration: 2030-01-07

Abstract

The utility model relates to the technical field of sump oil treatment, in particular to a sump oil sludge pretreatment device; the method can increase the aggregation of the emulsion cores of the oil sludge, destabilize the oil sludge, break the emulsified state, have better pretreatment effect, reduce the subsequent treatment pressure and be more practical; comprises a filter and a dehydrator; the device comprises a first core processing unit, a feeding pipe, a first connecting pipe and a second connecting pipe, wherein a first switch valve is arranged at the front side output end of the first connecting pipe, a second switch valve is arranged at the rear side output end of the first connecting pipe, a first cavity is arranged in the first core processing unit, a first ultrasonic demulsification component, a first high-frequency vibration component and a first high-energy electron beam component are fixedly arranged in the first cavity, the input end of the second connecting pipe is communicated with the output end of the first core processing unit, the output end of the second connecting pipe is communicated with the input end of a dehydrator, and a third switch valve is arranged on the second connecting pipe.

Description

Preprocessing device for dirty oil sludge

Technical Field

The utility model relates to a technical field that sump oil handled especially relates to a preprocessing device for sump oil mud.

Background

As is well known, sludge treatment refers to sludge produced in the production process of oil fields or refining enterprises due to the processes of crude oil extraction, storage, gathering, processing and crude oil extraction liquid treatment, and is named after crude oil or some components in crude oil and mainly comprises the following components: oil sludge falling to the ground, tank cleaning oil sludge, floating slag, refined oil sludge and the like; the pretreatment device for the oil sludge is equipment for pretreating the oil sludge falling to the ground, tank-cleaning oil sludge, floating slag, refined dirty oil and the like, is widely applied to the field of dirty oil sludge treatment, and comprises a filter and a dehydrator; when the existing pretreatment device for the oil sludge is used, the oil sludge is filtered by a filter, and then solid-liquid separation is realized by a desliming machine; at present, the pretreatment unit structure of the oil sludge is single, the emulsification state of the oil sludge is difficult to break through a filter and a desliming machine, the pretreatment effect is poor, the subsequent treatment cost is increased, and certain use limitation is realized.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a be not enough to prior art, the utility model provides a can make dirty fatlute destabilization breakdown of emulsion increase with the breast core gathering increase of dirty fatlute, break the emulsification state, the preliminary treatment effect is better, reduces subsequent processing pressure, more practical preprocessing device for the dirty fatlute.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: comprises a filter and a dehydrator; the device is characterized by further comprising a first core processing unit, a feeding pipe, a first connecting pipe and a second connecting pipe, wherein the output end of the feeding pipe is communicated with the input end of a filter, the output end of the filter is communicated with the input end of the first connecting pipe, the front side output end of the first connecting pipe is provided with a first switch valve, the rear side output end of the first connecting pipe is provided with a second switch valve, a first cavity is arranged in the first core processing unit, the front side output end of the first connecting pipe extends into the first cavity from the top end wall of the first core processing unit, a first ultrasonic demulsification component, a first high-frequency vibration component and a first high-energy electron beam component are fixedly arranged in the first cavity, the input end of the second connecting pipe is communicated with the output end of the first core processing unit, and the output end of the second connecting pipe is communicated with the input end of the dehydrator, and a third on-off valve is arranged on the second connecting pipe.

Preferably, the device also comprises a second core processing unit and a third connecting pipe, wherein a second cavity is arranged in the second core processing unit, a first ultrasonic demulsification component, a first high-frequency vibration component and a first high-energy electron beam component are arranged in the second cavity, the rear side output end of the first connecting pipe extends into the second cavity from the top end of the second core processing unit, the input end of the third connecting pipe is communicated with the output end of the second core processing unit, the output end of the third connecting pipe is communicated with the input end of the desliming machine, and a fourth switch valve is arranged on the third connecting pipe.

Preferably, the top ends of the first core processing unit and the second core processing unit are respectively provided with a first pressure pump and a second pressure pump, the output end of the first pressure pump extends into the first cavity from the top end of the first core processing unit, and the output end of the second pressure pump extends into the second cavity from the top end of the second core processing unit.

Preferably, still include first pivot and second pivot, first core processing unit and second core processing unit's top is provided with first agitator motor and second agitator motor respectively, first agitator motor's output from the top of first core processing unit pass first core processing unit's top wall and with the top fixed connection of first pivot, second agitator motor's output from the top of second core processing unit pass second core processing unit's top wall and with the top fixed connection of second pivot, all be provided with the stirring leaf on first pivot and the second pivoted.

Preferably, the slag phase collecting box and the reflux pump are further included, the solid phase output end of the deslimer extends into the third cavity, the reflux pump is fixedly arranged at the top end of the collecting box, the input end of the reflux pump penetrates through the top end wall of the collecting box from the top end of the collecting box and extends into the third cavity, and the output end of the reflux pump is communicated with the input end of the feeding pipe.

Preferably, a liquid phase collecting tank is arranged at the front end of the deslimer.

Preferably, still include the mounting bracket, filter, first core processing unit, second core processing unit and hydroextractor all fixed mounting in the top of mounting bracket, filter, first core processing unit, second core processing unit and the whole sled dress of hydroextractor.

Preferably, still include the container body, the bottom of container body and the top fixed connection of mounting bracket, filter, first core processing unit, second core processing unit and hydroextractor all are located the container internally, the container body front end is provided with the switch door.

Preferably, the top ends of the first core processing unit and the second core processing unit are provided with service manholes.

(III) advantageous effects

Compared with the prior art, the utility model provides a preprocessing device for sump oil mud possesses following beneficial effect: according to the pretreatment device for the dirty oil sludge, the dirty oil sludge is introduced into the filter through the inlet pipe, large-particle-size particles are filtered by the filter, the dirty oil sludge enters the first core treatment unit, after the dirty oil enters the first core treatment unit, the ultrasonic demulsification component, the secondary high-frequency vibration component and the high-energy electron beam component are combined to intelligently and synergistically play a role according to the property, the water content and the condition of containing mechanical impurities of an oil product, and the ultrasonic demulsification component is realized by utilizing the characteristics of ultrasonic waves and the mechanical vibration, the thermal action and the cavitation action which occur in the transmission process; when ultrasonic waves are transmitted in dirty oil, liquid particles vibrate through mechanical action, and under the action of the mechanical vibration, the milk nucleuses have the phenomena of volume enlargement, weight increase, mutual collision and aggregation and the like, so that large milk nucleuses are formed; the surface tension of the aggregated emulsion with large emulsion core is changed rapidly under the action of ultrasonic cavitation, which can reach several times of the original size, and the emulsion state is broken due to sudden collapse; the secondary high-frequency vibration component forms secondary high-frequency vibration, and the secondary high-frequency vibration is based on the characteristics of sump oil and is a vibration component developed by multi-degree-of-freedom system vibration; the mechanism is that the multi-degree-of-freedom system vibrates to enable the emulsified liquid to move and collide in multiple dimensions; under the action of high-frequency vibration, the flow velocity of water phase molecules is increased, the frequency of contact and encounter of interface flowing droplets is increased by the interfacial tension of the water phase molecules, the vibration of the droplet interface is intensified, an oil-water interface film is broken, and the emulsified state is broken; the high-energy electron beam component group can enable a small amount of accelerated electron beams to bombard the sludge-containing dirty oil, so that part of the sludge-containing dirty oil is subjected to physicochemical reaction which is difficult to cause under the conventional method, thereby achieving the purpose of nucleus increasing demulsification.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the first core processing unit of the present invention;

fig. 3 is a schematic view of the external structure of the container body of the present invention;

in the drawings, the reference numbers: 1. a filter; 2. a dehydrator; 3. a first core processing unit; 4. a feed pipe; 5. a first connecting pipe; 6. a second connecting pipe; 7. a first on-off valve; 8. a second on-off valve; 9. a first ultrasonic demulsification assembly; 10. a first secondary dither assembly; 11. a first high-energy electron beam assembly; 12. a second core processing unit; 13. a first pressure pump; 14. a second pressure pump; 15. a first rotating shaft; 16. a first stirring motor; 17. a second stirring motor; 18. stirring blades; 19. a slag phase collection box; 20. a reflux pump; 21. collecting tank; 22. a mounting frame; 23. a container body; 24. opening and closing the door; 25. and (4) overhauling manholes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model relates to a pretreatment device for oil sludge, which comprises a filter 1 and a dehydrator 2; the device also comprises a first core processing unit 3, a feeding pipe 4, a first connecting pipe 5 and a second connecting pipe 6, wherein the output end of the feeding pipe 4 is communicated with the input end of the filter 1, the output end of the filter 1 is communicated with the input end of the first connecting pipe 5, the front side output end of the first connecting pipe 5 is provided with a first switch valve 7, the rear side output end of the first connecting pipe 5 is provided with a second switch valve 8, a first cavity is arranged in the first core processing unit 3, the front side output end of the first connecting pipe 5 extends into the first cavity from the top end wall of the first core processing unit 3, a first ultrasonic demulsification component 9, a first high-frequency vibration component 10 and a first high-energy electron beam component 11 are fixedly arranged in the first cavity, the input end of the second connecting pipe 6 is communicated with the output end of the first core processing unit 3, the output end of the second connecting pipe 6 is communicated with the input end of, a third switch valve is arranged on the second connecting pipe; the dirty oil sludge is introduced into the filter 1 through the inlet pipe 4, after large-particle-size particles are filtered by the filter 1, the dirty oil sludge enters the first core processing unit 3, after the dirty oil enters the first core processing unit 3, the ultrasonic demulsification component, the secondary high-frequency vibration component and the high-energy electron beam component are formed, the intelligent synergistic effect can be realized according to the oil property, the water content and the condition of containing mechanical impurities, and the ultrasonic demulsification component is realized by utilizing the characteristics of ultrasonic waves and the mechanical vibration, the thermal effect and the cavitation effect which occur in the transmission process; when ultrasonic waves are transmitted in dirty oil, liquid particles vibrate through mechanical action, and under the action of the mechanical vibration, the milk nucleuses have the phenomena of volume enlargement, weight increase, mutual collision and aggregation and the like, so that large milk nucleuses are formed; the surface tension of the aggregated emulsion with large emulsion core is changed rapidly under the action of ultrasonic cavitation, which can reach several times of the original size, and the emulsion state is broken due to sudden collapse; the secondary high-frequency vibration component forms secondary high-frequency vibration, and the secondary high-frequency vibration is based on the characteristics of sump oil and is a vibration component developed by multi-degree-of-freedom system vibration; the mechanism is that the multi-degree-of-freedom system vibrates to enable the emulsified liquid to move and collide in multiple dimensions; under the action of high-frequency vibration, the flow velocity of water phase molecules is increased, the frequency of contact and encounter of interface flowing droplets is increased by the interfacial tension of the water phase molecules, the vibration of the droplet interface is intensified, an oil-water interface film is broken, and the emulsified state is broken; the high-energy electron beam component group can enable a small amount of accelerated electron beams to bombard the sludge-containing dirty oil, so that part of the sludge-containing dirty oil is subjected to physicochemical reaction which is difficult to cause under the conventional method, thereby achieving the purpose of nucleus increasing demulsification, the dirty oil after the nucleus increasing demulsification enters the dehydrator 2 for squeezing and filtering, and the liquid phase is conveyed to the next treatment device, so that the emulsion nucleus of the dirty oil sludge can be accumulated and increased, the dirty oil sludge is destabilized and demulsified, the emulsification state is broken, the pretreatment effect is better, the subsequent treatment pressure is reduced, and the method is more practical.

The utility model discloses a preprocessing device for dirty oil mud still includes second core processing unit 12 and third connecting pipe, be provided with the second cavity in the second core processing unit 12, be provided with first ultrasonic demulsification subassembly 9 in the second cavity, primary high-frequency vibration subassembly 10 and first high energy electron beam subassembly 11, the rear side output of first connecting pipe 5 stretches into in the second cavity from the top of second core processing unit 12, the input of third connecting pipe and the output of second core processing unit 12 communicate, the output of third connecting pipe and the input of desliming machine communicate, be provided with the fourth ooff valve on the third connecting pipe; through the setting of second core processing unit 12, can make second core processing unit 12 and first core processing unit 3 each other for reserve, when the dirty oil sludge handling capacity is big, can open first core processing unit 3 and second core processing unit 12 simultaneously, the throughput is stronger, and during single equipment trouble, sustainable dirty fatlute preliminary treatment operation that carries on, it is more practical.

The utility model discloses a preprocessing device for sump oil sludge, the top of first core processing unit 3 and second core processing unit 12 is provided with first force (forcing) pump 13 and second force (forcing) pump 14 respectively, the output of first force (forcing) pump 13 communicates with the feed liquor end of first core processing unit 3, the output of second force (forcing) pump 14 communicates with the feed liquor end of second core processing unit 12; the first pressure pump 13 and the second pressure pump 14 are communicated with a hot water source, and hot water is respectively pressurized and injected into the liquid inlet ends of the first core treatment unit 3 and the second core treatment unit 12, so that the water temperature in the first core unit and the second core unit reaches 60-80 ℃, and the nucleation and demulsification effect is better at the temperature.

The utility model discloses a preprocessing device for dirty oil sludge, still include first pivot 15 and second pivot, the top of first core processing unit 3 and second core processing unit 12 is provided with first agitator motor 16 and second agitator motor 17 respectively, the output of first agitator motor 16 passes the top wall of first core processing unit 3 and with the top fixed connection of first pivot 15 from the top of first core processing unit 3, the output of second agitator motor 17 passes the top wall of second core processing unit 12 and with the top fixed connection of second pivot from the top of second core processing unit 12, all be provided with stirring leaf 18 on first pivot 15 and the second pivoted; the first rotating shaft 15 and the second rotating shaft are respectively rotated by starting the first stirring motor 16 and the second stirring motor 17, so that the stirring blades 18 are rotated, the nucleation increasing and demulsification speed of the oil sludge can be accelerated in the stirring process, and the effect is better.

The utility model discloses a preprocessing device for dirty oil mud still includes sediment phase collecting box 19 and backwash pump 20, sediment phase collecting box 19, the solid phase output of desliming machine stretches into in the third cavity, backwash pump 20 is fixed to be set up in the top of collecting box, the input of backwash pump 20 passes the top end wall of collecting box and stretches into in the third cavity from the top of collecting box, the output of backwash pump 20 communicates with the input of inlet pipe 4; the reflux pump 20 is started to pressurize the slag in the slag phase collecting tank 19 and then the slag reflows to the feeding pipe 4 again, so that the secondary treatment of the slag phase collecting tank is realized, and the treatment effect is better.

The utility model discloses a pretreatment device for oil sludge, the front end of a desliming machine is provided with a liquid phase collecting tank 21; separated liquid phase substances can be collected through the arrangement of the liquid phase collecting tank 21, and the separated liquid phase substances are conveniently conveyed to the next treatment device for treatment after being collected.

The utility model discloses a preprocessing device for sewage sludge, still include mounting bracket 22, filter 1, first core processing unit 3, second core processing unit 12 and hydroextractor 2 all fixed mounting in the top of mounting bracket 22, filter 1, first core processing unit 3, second core processing unit 12 and hydroextractor 2 whole sled dress; the whole skid-mounted structure is convenient and fast to install and move, and time and labor are saved.

The utility model discloses a preprocessing device for sewage sludge, still include container body 23, the bottom of container body 23 and the top of mounting bracket 22 are fixed connection, and filter 1, first core processing unit 3, second core processing unit 12 and hydroextractor 2 all are located container body 23, and container body 23 front end is provided with switch door 24; the filter 1, the first core processing unit 3, the second core processing unit 12 and the dehydrator 2 can be isolated from the outside by arranging the container body 23, thereby reducing the wind and rain and protecting each device to a certain extent.

The utility model discloses a sewage sludge pretreatment device, the top ends of a first core processing unit 3 and a second core processing unit 12 are provided with an inspection manhole 25; the access manholes 25 provide for easy access for the operator during servicing of the first and second

core processing units

3, 12.

When the device is used, the dirty oil sludge is introduced into the filter 1 through the inlet pipe 4, large-particle-size particles are filtered by the filter 1, the dirty oil sludge enters the first core processing unit 3, after the dirty oil enters the core processing unit, the ultrasonic demulsification component, the secondary high-frequency vibration component and the high-energy electron beam component form a structure capable of intelligently and cooperatively playing a role according to the property, the water content and the condition of containing mechanical impurities of an oil product, and the ultrasonic demulsification component is realized by utilizing the characteristics of ultrasonic waves and the mechanical vibration, the thermal action and the cavitation action which occur in the transmission process; when ultrasonic waves are transmitted in dirty oil, liquid particles vibrate through mechanical action, and under the action of the mechanical vibration, the milk nucleuses have the phenomena of volume enlargement, weight increase, mutual collision and aggregation and the like, so that large milk nucleuses are formed; the surface tension of the aggregated emulsion with large emulsion core is changed rapidly under the action of ultrasonic cavitation, which can reach several times of the original size, and the emulsion state is broken due to sudden collapse; the secondary high-frequency vibration component forms secondary high-frequency vibration, and the secondary high-frequency vibration is based on the characteristics of sump oil and is a vibration component developed by multi-degree-of-freedom system vibration; the mechanism is that the multi-degree-of-freedom system vibrates to enable the emulsified liquid to move and collide in multiple dimensions; under the action of high-frequency vibration, the flow velocity of water phase molecules is increased, the frequency of contact and encounter of interface flowing droplets is increased by the interfacial tension of the water phase molecules, the vibration of the droplet interface is intensified, an oil-water interface film is broken, and the emulsified state is broken; the high-energy electron beam component group can enable a small amount of accelerated electron beams to bombard the sludge-containing dirty oil, so that part of the sludge-containing dirty oil is subjected to physicochemical reaction which is difficult to initiate under the conventional method, thereby achieving the purpose of nucleus increasing and emulsion breaking, the dirty oil after nucleus increasing and emulsion breaking enters the dehydrator 2 for squeezing and filtering, and the liquid phase is conveyed to the next treatment device, so that the emulsion nucleus of the dirty oil can be accumulated and increased, the dirty oil can be destabilized and emulsion broken, the emulsification state is broken, the pretreatment effect is better, the subsequent treatment pressure is reduced, and the method is more practical; the second core processing unit 12 and the first core processing unit 3 can be mutually standby through the arrangement of the second core processing unit 12, when the processing capacity of the oil sludge is large, the first core processing unit 3 and the second core processing unit 12 can be simultaneously started, the processing capacity is stronger, and when a single device fails, the oil sludge pretreatment operation can be continuously carried out, so that the oil sludge pretreatment device is more practical; the first pressure pump 13 and the second pressure pump 14 are communicated with a hot water source, and hot water is respectively pressurized and injected into the liquid inlet ends of the first core treatment unit 3 and the second core treatment unit 12, so that the water temperature in the first core unit and the second core unit reaches 60-80 ℃, and the nucleation and demulsification effect is better at the temperature; the first rotating shaft 15 and the second rotating shaft are respectively rotated by starting the first stirring motor 16 and the second stirring motor 17, so that the stirring blades 18 are rotated, the nucleation increasing and demulsification speed of the oil sludge can be accelerated in the stirring process, and the effect is better; the reflux pump 20 is started to pressurize the slag in the slag phase collecting tank 19 and then the slag reflows into the feeding pipe 4 again, so that the slag is subjected to secondary treatment by a manager, and the treatment effect is better; the separated liquid phase substances can be collected through the liquid phase collecting tank 21, and the collected liquid phase substances are conveniently conveyed to the next processing device for processing; the whole body is skid-mounted, so that the installation and the movement are more convenient and quicker, and the time and the labor are saved; the filter 1, the first core processing unit 3, the second core processing unit 12 and the dehydrator 2 can be isolated from the outside by arranging the container body 23, thereby reducing wind and rain and protecting each device to a certain extent; the access manholes 25 provide for easy access for the operator during servicing of the first and second

core processing units

3, 12.

The utility model discloses a preprocessing device for dirty oil sludge, the hydroextractor, first ultrasonic wave breakdown of emulsion subassembly, high-frequency vibration subassembly for the first time, first high energy electron beam subassembly, second ultrasonic wave breakdown of emulsion subassembly, high-frequency vibration subassembly for the second time, second high energy electron beam subassembly, first force (forcing) pump, the second force (forcing) pump, first agitator motor, second agitator motor all is purchase, and the hydroextractor, first ultrasonic wave breakdown of emulsion subassembly, high-frequency vibration subassembly for the first time, first high energy electron beam subassembly, second ultrasonic wave breakdown of emulsion subassembly, high-frequency vibration subassembly for the second time, second high energy electron beam subassembly, first force (forcing) pump, the second force (forcing) pump, first agitator motor, second agitator motor all carries out the electricity through the instruction book of buying together and connects.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the text are all electrically connected with an external master controller and a 220V or 380V, and the master controller can be a conventional known device which is controlled by a computer and the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pre-treatment device for oil sludge comprises a filter (1) and a dehydrator (2); the device is characterized by further comprising a first core processing unit (3), a feeding pipe (4), a first connecting pipe (5) and a second connecting pipe (6), wherein the output end of the feeding pipe (4) is communicated with the input end of the filter (1), the output end of the filter (1) is communicated with the input end of the first connecting pipe (5), the output end of the front side of the first connecting pipe (5) is provided with a first switch valve (7), the output end of the rear side of the first connecting pipe (5) is provided with a second switch valve (8), a first cavity is arranged in the first core processing unit (3), the output end of the front side of the first connecting pipe (5) extends into the first cavity from the top end wall of the first core processing unit (3), a first ultrasonic demulsification component (9), a first high-frequency vibration component (10) and a first high-energy electron beam component (11) are fixedly arranged in the first cavity, the input end of the second connecting pipe (6) is communicated with the output end of the first core processing unit (3), the output end of the second connecting pipe (6) is communicated with the input end of the dehydrator (2), and a third switch valve is arranged on the second connecting pipe.

2. The pretreatment device for the sewage sludge according to claim 1, further comprising a second core treatment unit (12) and a third connecting pipe, wherein a second cavity is arranged in the second core treatment unit (12), a first ultrasonic demulsification component (9), a first high-frequency vibration component (10) and a first high-energy electron beam component (11) are arranged in the second cavity, the rear output end of the first connecting pipe (5) extends into the second cavity from the top end of the second core treatment unit (12), the input end of the third connecting pipe is communicated with the output end of the second core treatment unit (12), the output end of the third connecting pipe is communicated with the input end of the desliming machine, and a fourth switch valve is arranged on the third connecting pipe.

3. A pre-treatment device for oil sludge according to claim 2, wherein the top ends of the first core treatment unit (3) and the second core treatment unit (12) are respectively provided with a first pressure pump (13) and a second pressure pump (14), the output end of the first pressure pump (13) extends into the first cavity from the top end of the first core treatment unit (3), and the output end of the second pressure pump (14) extends into the second cavity from the top end of the second core treatment unit (12).

4. The pretreatment device for the oil sludge according to claim 3, further comprising a first rotating shaft (15) and a second rotating shaft, wherein the top ends of the first core processing unit (3) and the second core processing unit (12) are respectively provided with a first stirring motor (16) and a second stirring motor (17), the output end of the first stirring motor (16) penetrates through the top end wall of the first core processing unit (3) from the top end of the first core processing unit (3) and is fixedly connected with the top end of the first rotating shaft (15), the output end of the second stirring motor (17) penetrates through the top end wall of the second core processing unit (12) from the top end of the second core processing unit (12) and is fixedly connected with the top end of the second rotating shaft, and the first rotating shaft (15) and the second rotating shaft are both provided with stirring blades (18).

5. A pre-treatment device for dirty oil sludge as claimed in claim 4, further comprising a slag phase collection box (19) and a reflux pump (20), wherein the slag phase collection box (19) and the solid phase output end of the desliming machine extend into the third cavity, the reflux pump (20) is fixedly arranged at the top end of the collection box (19), the input end of the reflux pump (20) passes through the top end wall of the collection box (19) from the top end of the collection box (19) and extends into the third cavity, and the output end of the reflux pump (20) is communicated with the input end of the feeding pipe (4).

6. A pre-treatment device for sewage sludge according to claim 5, wherein the front end of the deslimer is provided with a liquid phase collecting tank (21).

7. The pretreatment device for sludge according to claim 6, further comprising a mounting frame (22), wherein the filter (1), the first core treatment unit (3), the second core treatment unit (12) and the dehydrator (2) are all fixedly mounted at the top end of the mounting frame (22), and the filter (1), the first core treatment unit (3), the second core treatment unit (12) and the dehydrator (2) are integrally skid-mounted.

8. The pretreatment device for the sludge oil according to claim 7, further comprising a container body (23), wherein the bottom end of the container body (23) is fixedly connected with the top end of the mounting frame (22), the filter (1), the first core processing unit (3), the second core processing unit (12) and the dehydrator (2) are all located in the container body (23), and a switch door (24) is arranged at the front end of the container body (23).

9. A pre-treatment device for sludge according to claim 8, wherein the top ends of the first core treatment unit (3) and the second core treatment unit (12) are provided with a manhole (25).