CN212246904U - Oil sludge extraction unit, oil sludge extraction assembly and oil sludge treatment device - Google Patents
Oil sludge extraction unit, oil sludge extraction assembly and oil sludge treatment device Download PDFInfo
- Publication number
- CN212246904U CN212246904U CN202021403978.XU CN202021403978U CN212246904U CN 212246904 U CN212246904 U CN 212246904U CN 202021403978 U CN202021403978 U CN 202021403978U CN 212246904 U CN212246904 U CN 212246904U
- Authority
- CN
- China
- Prior art keywords
- sludge
- oil
- extraction
- outlet
- silt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a fatlute extraction unit, fatlute extraction subassembly and sludge treatment device, fatlute extraction unit includes extraction agitator tank and first mechanical dewatering device, the extraction agitator tank has the stirring district of lower extreme intercommunication each other and the layering district that stews, extraction agitator tank upper end has fatlute entry and the solvent entry rather than the stirring district intercommunication, the stirring district of extraction agitator tank is used for mixing solvent and fatlute, the layering district that stews of extraction agitator tank is used for layering solvent and fatlute after the misce bene for the extraction phase layer that distributes from top to bottom in proper order, water layer and silt layer, the last silt export rather than the layering district lower extreme intercommunication that stews that has of extraction agitator tank, be equipped with extraction phase export rather than the layering district intercommunication that stews and water level control mouth on its lateral wall; the silt entry of first mechanical dewatering device and the silt export intercommunication of extraction agitator tank, and the two intercommunication department is equipped with first valve, its simple structure, economic environmental protection, and it is efficient to degrease, can miniaturize.
Description
Technical Field
The utility model belongs to fatlute innocent treatment field especially relates to a fatlute extraction unit, fatlute extraction subassembly and sludge treatment device.
Background
Oily sludge and oily rock debris (hereinafter referred to as "oil sludge") are mainly produced in the links of drilling, storage, transportation, refining and the like of oil gas and solid waste generated in the process of treating oily wastewater, have the characteristics of flammability, toxicity, difficulty in natural degradation and the like, are listed in the national hazardous waste record, and are HW 08-class hazardous wastes. The national regulation, the national clean production promotion law and the solid waste environmental pollution prevention and control law also require that the oily sludge must be subjected to harmless treatment. At present, the oil-containing sludge generated by the oil exploitation industry only in China per year exceeds 500 million tons and is in a trend of rising year by year. Efficient, safe and economical harmless treatment of oil sludge is a challenge for all countries in the world. The sludge treatment method adopted in the past includes: (1) abandonment, e.g., marine abandonment of oil sludge, soil landfill, natural stacking; (2) aerobic incineration; (3) micro degradation; (4) extracting with a solvent; (5) pyrolysis gasification, and the like. The prior art using these methods results in high disposal costs or secondary pollution and waste of oil and gas resources in the sludge.
The research on safe, environment-friendly and economic treatment method and device can fully recover the petroleum in the oil sludge, ensure that indexes such as residual oil amount after treatment and the like reach the new national standard, and is an ideal target for harmless treatment of the oil sludge.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an object of the present invention is to provide a high-efficiency sludge extraction unit capable of performing continuous extraction treatment of sludge in a pipeline manner.
In order to achieve the above purpose, the technical solution of the present invention is as follows: an oil sludge extraction unit comprises an extraction stirring tank and a first mechanical dehydration device;
the stirring area that has the lower extreme and communicates each other in the extraction agitator tank and the layering district that stews, have on the extraction agitator tank with fatlute entry and the solvent entry of its stirring area upper end intercommunication, the stirring area of extraction agitator tank is used for with solvent and fatlute intensive mixing, the solvent is used for extracting the oil in the fatlute, be equipped with on the lateral wall of extraction agitator tank with extract phase export and the water level control mouth of the layering district intercommunication of stewing, and its extract phase export is located the top of its water level control mouth, the water level control mouth of extraction agitator tank is used for adding water or drainage in order to adjust its water yield in the layering district that stews, fatlute and solvent are in the stirring area of extraction agitator tank is mixed back and is leading-in to it and stews in the layering district and is extraction phase layer, water layer and silt layer from top to bottom in proper order, the extract phase export of extraction agitator tank is located on the lower terminal surface of its extraction phase layer, the water level adjusting port is positioned between the lower end face of the extraction phase layer and the upper end face of the sediment layer, and the extraction stirring tank is provided with a sediment outlet communicated with the lower end of the standing layered area;
first mechanical dewatering device has silt entry, liquid outlet and silt export, first mechanical dewatering device's silt entry with the silt export intercommunication of extraction agitator tank, and the two department of intercommunication is equipped with first valve.
The beneficial effects of the above technical scheme are that: therefore, the oil sludge and the solvent can be fully mixed in the stirring area by utilizing the extraction stirring tank, so that the oil component in the oil sludge is dissolved in the solvent as completely as possible, the uniformly mixed mixture is discharged to the standing layering area for layering, and simultaneously, because a water layer is arranged in the standing layering area, the silt is settled to the bottom layer due to the largest specific gravity of the silt, the specific gravity of the extraction phase is smaller than that of water, so that the separation of the extraction phase and the silt is realized, the water layer is positioned above the silt layer after layering, and the extraction phase layer is positioned above the water layer, so that the silt and the extraction phase are respectively treated, wherein, the whole process can realize the continuous production in a flow line manner, for example, the oil sludge and the fresh solvent can be continuously conveyed into the stirring area, the uniformly mixed mixture in the mixing area is continuously discharged to the standing layering area, the extraction liquid in the extraction phase layer is continuously discharged, and the silt layer at the lowest layer is, in the whole process, the materials in the extraction stirring tank are in dynamic balance, so that the production line type continuous operation is realized.
A second object of the present invention is to provide a pipelined sludge extraction module for continuously performing multi-stage extraction on sludge.
In order to achieve the above purpose, the technical solution of the present invention is as follows: the utility model provides a fatlute extraction subassembly, includes a plurality of as above fatlute extraction unit, it is a plurality of fatlute extraction unit sets gradually along the up-and-down stream order, every the silt export of first mechanical dewatering device and its low reaches of next extraction agitator tank's fatlute entry intercommunication is located the most upstream the fatlute entry of extraction agitator tank constitutes this fatlute extraction subassembly's fatlute entry, is located the most low reaches the silt export of first mechanical dewatering device constitutes this fatlute extraction subassembly's silt export.
The beneficial effects of the above technical scheme are that: therefore, the multistage extraction treatment of the oil sludge can be realized, and the oil content in the finally discharged silt can be ensured to meet the discharge requirement.
The technical scheme includes that the device further comprises a solvent separation and regeneration unit and a solvent pump, the solvent separation and regeneration unit is provided with an extraction phase inlet, a solvent outlet and an oil component outlet, the extraction phase outlets of the extraction stirring tanks are communicated with the extraction phase inlet of the solvent separation and regeneration unit, the solvent outlet of the solvent separation and regeneration unit is communicated with an inlet of the solvent pump, and outlets of the solvent pump are communicated with the solvent inlets of the extraction stirring tanks respectively.
The beneficial effects of the above technical scheme are that: therefore, the solvent in the whole assembly can be continuously recycled and regenerated, and the oil component in the oil sludge can be continuously extracted and separated, so that the cost of the whole production process and the continuous operation of the oil sludge extraction assembly is lower.
The third object of the present invention is to provide a systematic, pipelined and efficient sludge treatment device.
In order to achieve the above purpose, the technical solution of the present invention is as follows: the utility model provides a sludge treatment device, includes stirring settling tank, second machinery dewatering device and as above sludge extraction subassembly, stirring settling tank's inside is provided with stirring district and deposit layering district, and its stirring district communicates with the lower extreme in deposit layering district each other, have on the stirring settling tank and stir the fatlute entry and the air vent of distinguishing the upper end intercommunication rather than stirring, and deposit the fatlute export of layering district lower extreme intercommunication rather than depositing, be equipped with oil extraction export and the water level regulation mouth rather than deposit the layering district intercommunication on its lateral wall, and its oil extraction export is located the top of its water level regulation mouth, the water level regulation mouth of stirring settling tank is used for adding water or drainage in order to adjust the water yield in the deposit layering district, lets in sludge in the stirring settling tank is leading-in to deposit layering district and deposit the layering after its stirring district stirs, from top to bottom in the deposit layering district is the oil reservoir in proper order, The horizontal height of an oil discharge outlet of the stirring and settling tank is higher than the lower end surface of an oil layer, and a water level adjusting port of the stirring and settling tank is positioned between the lower end surface of the oil layer and the upper end surface of the oil sludge layer;
the second mechanical dehydration device is provided with an oil sludge inlet, a liquid outlet and an oil sludge outlet, the oil sludge inlet of the second mechanical dehydration device is communicated with the oil sludge outlet of the stirring and settling tank, and a second valve is arranged at the communication position of the oil sludge inlet and the oil sludge outlet.
The beneficial effects of the above technical scheme are that: the usable stirring sedimentation tank carries out preseparation to the oil in the fatlute like this, because the proportion of the oil in the fatlute is lighter than water, so it can separate with the water layer by oneself, so can carry out primary separation to partial oil in the fatlute, follow-up fatlute extraction element is extracted and is separated remaining oil in the fatlute in order to realize the innocent treatment to the fatlute.
The oil-water separation device comprises a solvent separation regeneration unit, an oil outlet, an oil component outlet, an oil outlet.
The beneficial effects of the above technical scheme are that: therefore, the oil separated by the solvent separation and regeneration unit and the oil discharged by the stirring and settling tank can be subjected to oil-water separation, and the separated water with low oil content can be recycled or safely discharged.
The technical scheme includes that the oil sludge smashing unit is further provided with a raw material inlet and an oil sludge outlet, and the oil sludge outlet of the oil sludge smashing unit is communicated with the oil sludge inlet of the stirring and settling tank and is used for smashing oil sludge raw materials.
The beneficial effects of the above technical scheme are that: the oil sludge or oil sludge raw material containing oil rock debris is crushed into oil sludge with small particle size, so that the solvent can be more fully contacted with the oil sludge, and the extraction effect is enhanced.
Still include gunbarrel and third mechanical dewatering device among the above-mentioned technical scheme, the gunbarrel upper end has the silt entry rather than inside intercommunication, and its lower extreme has the silt export rather than inside intercommunication, and its lateral wall upper end has the water level regulating mouth rather than inside intercommunication, and its water level regulating mouth is used for adding water or drainage in order to adjust its inside water yield to its inside, the silt entry of gunbarrel with the silt export intercommunication of fatlute extraction subassembly, third mechanical dewatering device has silt entry, water outlet and silt export, third mechanical dewatering device's silt entry with the silt export intercommunication of gunbarrel, and the two intercommunication department is equipped with the third valve.
The beneficial effects of the above technical scheme are that: so that the extracted silt can be precipitated and enriched to be convenient for subsequent treatment.
Still include among the above-mentioned technical scheme silt drying and dewatering unit, silt drying and dewatering unit has the incoming material entry, and its incoming material entry is used for receiving third mechanical dewatering device's silt export exhaust silt, it is used for being the mud sediment with its drying.
The beneficial effects of the above technical scheme are that: therefore, the silt with higher water content is prepared into the sludge, the treatment is more convenient, and the transportation is convenient or the environment-friendly recycling can be realized.
Drawings
Fig. 1 is a schematic diagram of a sludge extraction unit according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of an extraction stirring tank described in embodiment 1 of the present invention;
fig. 3 is a partial view of a sludge extraction module according to embodiment 2 of the present invention;
fig. 4 is a schematic diagram of another sludge extraction module according to embodiment 2 of the present invention;
fig. 5 is a partial view of the sludge treatment apparatus according to embodiment 3 of the present invention;
fig. 6 is another partial view of the sludge treatment apparatus according to embodiment 3 of the present invention;
fig. 7 is another partial view of the sludge treatment apparatus according to embodiment 3 of the present invention;
fig. 8 is a schematic view of a sludge treatment apparatus according to embodiment 3 of the present invention.
In the figure: 1 oil sludge extraction component, 11 oil sludge extraction unit, 111 extraction agitator tank, 1111 tank body, 1112 stirring paddle, 1113 motor, 1114 ultrasonic generator, 1115 partition plate, 1116 guide pipe, 112 first mechanical dehydration unit, 113 first valve, 12 solvent separation regeneration unit, 13 solvent pump, 2 stirring precipitation tank, 3 second mechanical dehydration unit, 4 second valve, 5 oil-water separation unit, 6 oil sludge crushing unit, 7 precipitation tank, 8 third mechanical dehydration unit, 9 third valve, 10 silt drying dehydration unit.
Detailed Description
The principles and features of the present invention are described below in conjunction with the drawings and the embodiments, which are set forth for the purpose of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 2, the present embodiment provides a sludge extraction unit, which includes an extraction agitator tank 111 and a first mechanical dewatering device 112;
the stirring area that has the lower extreme and communicates each other in the extraction agitator tank 111 with the layering district that stews, have fatlute entry and the solvent entry rather than stirring area upper end intercommunication on the extraction agitator tank 111, the stirring area of extraction agitator tank 111 is used for the abundant homogeneous mixing with solvent and fatlute, the solvent is used for extracting the oil in the fatlute, be equipped with on the lateral wall of extraction agitator tank 111 with extract phase export and the water level control mouth of the layering district intercommunication that stews, and its extract phase export is located the top of its water level control mouth, the water level control mouth of extraction agitator tank 111 is used for adding water or drainage in order to adjust its water yield in the layering district that stews, fatlute and solvent are leading-in to its water layer in the layering district that stews after mixing in the stirring area of extraction agitator tank 111, and the layering is extraction phase layer, water layer and silt layer from top to bottom in proper order in the layering, an extract phase outlet of the extraction stirring tank 111 is positioned above the lower end face of an extract phase layer, a water level adjusting port of the extraction stirring tank is positioned between the lower end face of the extract phase layer and the upper end face of a sediment layer, and a sediment outlet communicated with the lower end of a standing layered area of the extraction stirring tank 111 is arranged;
the first mechanical dewatering device 112 has a silt inlet, a liquid outlet and a silt outlet, the silt inlet of the first mechanical dewatering device 112 is communicated with the silt outlet of the extraction stirring tank 111, and a first valve 113 is arranged at the communication position of the silt inlet and the liquid outlet, so that the oil sludge and the solvent can be fully mixed in the stirring area of the extraction stirring tank, oil components in the oil sludge are completely dissolved into the solvent as far as possible, the uniformly mixed mixture is discharged to the standing layering area for layering, meanwhile, because the standing layering area is internally provided with a water layer, the specific gravity of the water-insoluble extraction phase is minimum, and the specific gravity of the silt is maximum, so that after layering, the water layer is positioned above the silt layer, the extraction layer is positioned above the water layer, so that the separation of the extraction phase and the silt is realized by the water layer, the silt and the extraction phase are respectively treated, and the whole process can realize the flow-type continuous production, the oil sludge and the fresh solvent can be continuously fed into the stirring area, the mixture uniformly mixed in the mixing area is continuously discharged to the standing layering area for layering, the extract liquor of the extraction phase layer is continuously discharged, the silt layer at the lowest layer is also continuously discharged to the first mechanical dehydration device for dehydration, the materials in the extraction stirring tank are in dynamic balance in the whole process, and thus the production line type continuous operation is realized.
Wherein, as shown in fig. 1, the extraction agitator tank includes jar body 1111, stirring rake 1112, motor 1113 and supersonic generator 1114, jar body 1111 inside upper end has the baffle 1115 will jar body 1111 is cut apart into upper chamber and lower chamber, wherein upper chamber and lower chamber constitute the stirring zone respectively and the layering district that stews, stirring rake 1112 and supersonic generator 1114 are all installed in the upper chamber, the one end of the oar axle of stirring rake 1112 stretches out outside jar body 1111, and with jar body 1111 seals to rotate and is connected, motor 1113 install on jar body 1111 and with the oar axle stretches out the outer one end transmission of jar body 1111 is connected, be equipped with a vertical pipe 1116 of setting in the lower chamber, the upper end of pipe 1116 run through the baffle and with the baffle is connected fixedly, the lower extreme of pipe extends to and is close to the lower extreme of jar body 1111, the mixture in the upper chamber is through the pipe 1116 to the layering of settling in the lower chamber, wherein, preferentially, the baffle is the shape of a cone, and its awl tip is down, the upper end of pipe with the awl tip of baffle is connected fixedly, wherein, the upper end of jar body 1111 is equipped with two fatlute entries and the solvent entry that communicates with its upper plenum, be equipped with on the jar body 1111 lateral wall rather than the extraction looks export and the water level control mouth of intercommunication in the lower plenum.
Example 2
As shown in fig. 3, this embodiment provides a sludge extraction module, which includes a plurality of sludge extraction units as in embodiment 1, where the plurality of sludge extraction units 11 are sequentially arranged along an upstream and a downstream, a silt outlet of each first mechanical dewatering device 112 is communicated with a sludge inlet of the extraction agitator tank 111 immediately downstream, a sludge inlet of the extraction agitator tank 111 located at the most upstream constitutes a sludge inlet of the sludge extraction module, and a silt outlet of the first mechanical dewatering device 112 located at the most downstream constitutes a silt outlet of the sludge extraction module, so that a multi-stage extraction process of sludge can be realized, and an oil content in finally discharged silt can be ensured to meet a discharge requirement.
As shown in fig. 4, the above technical solution further includes a solvent separation and regeneration unit 12 and a solvent pump 13, the solvent separation and regeneration unit 12 has an extract phase inlet, a solvent outlet and an oil component outlet, the extract phase outlets of the extraction agitator tanks 111 are all communicated with the extract phase inlet of the solvent separation and regeneration unit 12, the solvent outlet of the solvent separation and regeneration unit 12 is communicated with the inlet of the solvent pump 13, and the outlets of the solvent pump 13 are respectively communicated with the solvent inlets of the extraction agitator tanks 111, so that the solvent in the whole module can continuously enter an extraction and use link and be recycled for regeneration, and the oil component in the oil sludge can be continuously extracted and separated out, so that the cost of the whole process and the continuous operation of the module are lower.
Example 3
As shown in fig. 5, the present embodiment provides a sludge treatment apparatus, which includes an agitation sedimentation tank 2, a second mechanical dewatering device 3 and a sludge extraction assembly 1 as described in embodiment 2, wherein the agitation sedimentation tank 2 is provided therein with an agitation zone and a sedimentation zone, the agitation zone is communicated with a lower end of the sedimentation zone, the agitation sedimentation tank 2 is provided with a sludge inlet and a vent communicated with an upper end of the agitation zone, and a sludge outlet communicated with a lower end of the sedimentation zone, a side wall of the agitation sedimentation tank is provided with an oil discharge outlet and a water level adjusting port communicated with the sedimentation zone, the oil discharge outlet is located above the water level adjusting port, the water level adjusting port of the agitation sedimentation tank is used for adding or discharging water to adjust the water amount in the sedimentation zone, the sludge introduced into the agitation sedimentation zone 2 is introduced into the sedimentation zone after being agitated in the agitation zone, an oil layer, a water layer and an oil sludge layer are sequentially arranged in the sedimentation layering area from top to bottom, the height of an oil discharge outlet of the stirring sedimentation tank 2 is above the lower end face of the oil layer, and a water level adjusting port of the stirring sedimentation tank is positioned between the lower end face of the oil layer and the upper end face of the oil sludge layer;
the second mechanical dehydration device 3 is provided with an oil sludge inlet, a liquid outlet and an oil sludge outlet, the oil sludge inlet of the second mechanical dehydration device 3 is communicated with the oil sludge outlet of the stirring and settling tank 2, and a second valve 4 is arranged at the communication position of the oil sludge inlet and the oil sludge outlet, so that the oil in the oil sludge can be pretreated and separated by the stirring and settling tank, the specific gravity of the oil in the oil sludge is smaller than that of water, the oil is insoluble in water, the specific gravity of the oil sludge is larger than that of water, the oil in the oil sludge can be separated from the water layer by itself, and a subsequent oil sludge extraction assembly can be used for extracting residual oil components in the oil sludge.
Wherein, still include among the above-mentioned technical scheme oil-water separation unit 5, oil-water separation unit 5 has a liquid inlet, an oil-out and a delivery port, the oil component export of solvent separation regeneration unit 12 and the oil extraction export of stirring precipitation tank 2 all with oil-water separation unit 5's liquid inlet intercommunication, it is used for separating oil-water to oil and water that will separate out are respectively through its oil-out and delivery port discharge, so can all carry out oil-water separation with the oil that solvent separation regeneration unit separated out and the oil that stirring precipitation tank discharged, so can improve oil-water separation's availability factor and the rate of recycling of water. Wherein, the oil-water separation unit can adopt an oil-water separator.
The structure of the stirring and settling tank can be similar to that of the extraction stirring tank, and the difference is that the stirring and settling tank is not provided with a solvent inlet and is provided with a vent hole at a corresponding position (namely, the two structures can be the same, and only the solvent inlet is used as the vent hole).
As shown in fig. 6, the technical solution further includes an oil sludge pulverizing unit 6, where the oil sludge pulverizing unit 6 has a raw material inlet and an oil sludge outlet, and the oil sludge outlet of the oil sludge pulverizing unit 6 is communicated with the oil sludge inlet of the agitation sedimentation tank 2, and is used to pulverize the oil sludge raw material, so as to pulverize the oil sludge or the oil sludge raw material containing oil and rock debris into oil sludge with a small particle size, so that the solvent and the oil sludge can be more sufficiently contacted, and the extraction effect is enhanced. Wherein, the oil sludge crushing unit can adopt a sludge crusher.
As shown in fig. 7, still include gunbarrel 7 and third mechanical dewatering device 8, gunbarrel 7 upper end has the silt entry rather than inside intercommunication, and its lower extreme has the silt export rather than inside intercommunication, and its lateral wall upper end has the water level control mouth rather than inside intercommunication, and its water level control mouth is used for adding water or drainage in it in order to adjust its inside water yield, gunbarrel 7's silt entry with the silt export intercommunication of fatlute extraction subassembly 1, third mechanical dewatering device 8 has silt entry, water export and silt export, third mechanical dewatering device 8's silt entry with gunbarrel 7's silt export intercommunication, and the two intercommunication department is equipped with third valve 9, so can deposit the enrichment so to the silt after extracting so be convenient for follow-up handling it.
As shown in fig. 8, still include silt drying and dewatering unit 10 among the above-mentioned technical scheme, silt drying and dewatering unit 10 has the incoming material entry, and its incoming material entry is used for receiving the silt of the silt export discharge of third mechanical dewatering device 8, it is used for dehydrating silt dry for the mud sediment, so prepare the silt that the water content is higher for dry mud sediment, and it is convenient for transport and handles more convenient environmental protection.
Wherein, preferentially, silt drying and dewatering unit can adopt the filter-pressing hydroextractor, and first mechanical dewatering device, second mechanical dewatering device and third mechanical dewatering device all can be industrial centrifugal dehydrator.
The present embodiment is characterized in that it can be used for pipeline type continuous sludge treatment, and has high treatment efficiency, and in addition, the solvent use-regeneration and reuse loop of the whole sludge extraction module is in a sealed state, so that the solvent can be ensured not to run off, and the present embodiment is cleaner and more environment-friendly.
Preferably, in embodiments 1 to 3, the extraction stirring tank, the stirring and settling tank, and the settling tank may be provided with observation windows to facilitate observation of liquid level conditions therein, and the extraction stirring tank, the stirring and settling tank, and the settling tank are provided with water level adjusting ports, preferably, each of the water level adjusting ports may be connected to a tee, and the remaining two ports of each tee are respectively provided with a fourth valve, one of the fourth valves is connected to the water feeding pipe, and the other fourth valve is connected to the water discharging pipe, and for the extraction stirring tank, the stirring and settling tank, or the settling tank, one of the fourth valves is selectively opened to feed water into the extraction stirring tank, the stirring and settling tank, or discharge water from the extraction stirring tank, the stirring and settling tank, so as to adjust the height of the water layer in the tank.
Preferably, an electric heating pipe can be additionally arranged at a position of a precipitation stratification region of the stirring and settling tank 2 corresponding to the water layer, wherein two ends of the heating pipe are hermetically and insulatively embedded on the side wall of the stirring and settling tank, and the electric lead of the heating pipe is positioned outside the stirring and settling tank and is externally connected with a power supply, so that the water layer in the precipitation stratification region can be heated by the electric heating pipe to increase the precipitation amount of the oil in the oil sludge, and the water temperature of the water layer in the precipitation stratification region is preferably controlled to be above 60 ℃.
Wherein, the sludge treatment device that this embodiment provided can sled dress in an box (container), so with its miniaturization and remove more in a flexible way, can directly carry it to fatlute department and carry out scale treatment to fatlute (directly carry fatlute treatment facility to fatlute department and carry out field treatment promptly, need not to carry out the transition haulage to fatlute to avoid the secondary environmental pollution that fatlutes and cause on the way of transition, reduce the treatment cost simultaneously).
Wherein, the solvent can be prepared by mixing one or more of the following components according to the requirement, and the solvent can be selected as follows: light coal tar, gasoline, kerosene, diesel oil, solvent oil, propane, butane, pentane, cyclohexane, methyl chloride (such as dichloromethane, trichloromethane and tetrachloromethane), ethyl chloride, propyl chloride, petroleum ether, propylene, butylene, amylene, acetone, isopropyl ketone, butanone, ethyl ether, propyl ether, butyl ether, benzene, toluene, xylene and the like.
Since the oil content of the oil sludge in the stirred tank may be high and the water produced by the second mechanical dewatering device after dewatering the oil sludge may contain a large amount of oil components, it is further preferable that the liquid outlet of the second mechanical dewatering device 3 is communicated with the liquid inlet of the oil-water separation unit to separate oil from water.
Example 4
The embodiment provides an oil sludge treatment method, which comprises the following steps:
step 1: crushing oil sludge or oil sludge raw material containing oil rock debris into oil sludge with small particle size;
step 2: introducing water (preferably hot water at a temperature of between 60 and 90 ℃) into the oil sludge prepared in the step 1, uniformly stirring and mixing, layering the precipitate into an oil layer, a water layer and an oil sludge layer which are distributed along the vertical direction after uniformly mixing (a heater can be arranged to continuously heat the liquid in the storage tank so as to keep the temperature of the liquid relatively stable), and leading out the separated oil layer and removing water in the oil layer;
and step 3: leading out the oil sludge in the oil sludge layer in the step 2 for dehydration, stirring and uniformly mixing the dehydrated oil sludge with an extraction solvent, leading the mixture into water after uniform mixing, standing and layering the mixture into an extraction phase layer, a water layer and a sediment layer which are distributed along the vertical direction, and respectively leading out the extraction phase and the sediment after layering;
and 4, step 4: carrying out regeneration separation on the solvent and the oil in the extraction phase led out in the step 3, recycling the separated solvent, carrying out oil-water separation on oil-water mixed liquid generated by dehydrating the oil sludge in the step 3, and recovering the separated oil;
and 5: and (4) dehydrating the silt led out from the silt layer in the step (3) to prepare harmless sludge. The method is simple and convenient, and can realize the streamline and continuous oil removal and recovery harmless treatment of the oil sludge.
In the technical scheme, the oil-water mixture in the step 2 and the step 4 can be separated from oil and water by adopting a standing oil-water separation method, or can be separated from oil and water by adopting an oil-water separator, and the solvent in the extraction phase in the step 4 can be recycled by adopting a distillation method.
The oil sludge treatment apparatus provided in embodiment 3 can perform oil removal treatment on oil sludge according to the principle of the present method.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A sludge extraction unit, characterized by comprising an extraction agitator tank (111) and a first mechanical dewatering device (112);
the extraction agitator tank (111) is internally provided with an agitating area and a standing layering area, the agitating area and the standing layering area are communicated with each other at the lower ends, the extraction agitator tank (111) is provided with an oil sludge inlet and a solvent inlet which are communicated with the upper end of the agitating area, the agitating area of the extraction agitator tank (111) is used for fully and uniformly mixing a solvent and oil sludge, the solvent is used for extracting oil in the oil sludge, the side wall of the extraction agitator tank (111) is provided with an extraction phase outlet and a water level adjusting port which are communicated with the standing layering area, the extraction phase outlet is positioned above the water level adjusting port, the water level adjusting port of the extraction agitator tank (111) is used for adding water or draining water to adjust the water amount in the standing layering area, the oil sludge and the solvent are mixed in the agitating area of the extraction agitator tank (111) and then are guided into the standing layering area and then mixed with the water, and the oil sludge and the solvent are sequentially layered from top, The extraction and agitation tank (111) is provided with a sediment outlet communicated with the lower end of the standing layering area;
first mechanical dewatering device (112) have silt entry, liquid outlet and silt export, the silt entry of first mechanical dewatering device (112) with the silt export intercommunication of extraction agitator tank (111), and the two intercommunication department is equipped with first valve (113).
2. A sludge extraction module comprising a plurality of sludge extraction units (11) according to claim 1, wherein the plurality of sludge extraction units (11) are arranged sequentially in an upstream and downstream manner, wherein the sludge outlet of each first mechanical dewatering device (112) is in communication with the sludge inlet of the extraction agitator tank (111) immediately downstream thereof, the sludge inlet of the extraction agitator tank (111) located most upstream constitutes the sludge inlet of the sludge extraction module, and the sludge outlet of the first mechanical dewatering device (112) located most downstream constitutes the sludge outlet of the sludge extraction module.
3. The sludge extraction module of claim 2 further comprising a solvent separation regeneration unit (12) and a solvent pump (13), wherein the solvent separation regeneration unit (12) has an extract phase inlet, a solvent outlet and an oil component outlet, the extract phase outlets of the plurality of extraction agitator tanks (111) are all communicated with the extract phase inlet of the solvent separation regeneration unit (12), the solvent outlet of the solvent separation regeneration unit (12) is communicated with the inlet of the solvent pump (13), and the outlets of the solvent pump (13) are respectively communicated with the solvent inlets of the plurality of extraction agitator tanks (111).
4. A sludge treatment device, which is characterized by comprising an agitating and settling tank (2), a second mechanical dewatering device (3) and the sludge extraction assembly (1) as claimed in claim 3, wherein an agitating area and a settling stratified area are arranged in the agitating and settling tank (2), the agitating area is communicated with the lower end of the settling stratified area, the agitating and settling tank (2) is provided with a sludge inlet and a vent hole which are communicated with the upper end of the agitating area, and a sludge outlet which is communicated with the lower end of the settling stratified area, the side wall of the agitating and settling tank (2) is provided with an oil discharge outlet and a water level adjusting port which are communicated with the settling stratified area, the oil discharge outlet is positioned above the water level adjusting port, the water level adjusting port of the agitating and settling tank is used for adding water or discharging water to adjust the water amount in the stratified area, the sludge introduced into the agitating and settling tank (2) is introduced into the settling stratified area after being agitated by the agitating area and then is led into the settling stratified area, an oil layer, a water layer and an oil sludge layer are sequentially arranged in the sedimentation layering area from top to bottom, the height of an oil discharge outlet of the stirring sedimentation tank (2) is higher than the lower end face of the oil layer, and a water level adjusting port of the stirring sedimentation tank is positioned between the lower end face of the oil layer and the upper end face of the oil sludge layer;
the second mechanical dehydration device (3) is provided with an oil sludge inlet, a liquid outlet and an oil sludge outlet, the oil sludge inlet of the second mechanical dehydration device (3) is communicated with the oil sludge outlet of the stirring and settling tank (2), and a second valve (4) is arranged at the communication position of the oil sludge inlet and the oil sludge outlet.
5. The oil sludge treatment device according to claim 4, further comprising an oil-water separation unit (5), wherein the oil-water separation unit (5) has a liquid inlet, an oil outlet and a water outlet, and the oil component outlet of the solvent separation and regeneration unit (12) and the oil discharge outlet of the stirring and settling tank (2) are both communicated with the liquid inlet of the oil-water separation unit (5) for separating oil from water and discharging the separated oil and water through the oil outlet and the water outlet respectively.
6. The sludge treatment apparatus according to claim 5, further comprising a sludge break unit (6), wherein the sludge break unit (6) has a raw material inlet and a sludge outlet, and wherein the sludge outlet of the sludge break unit (6) is communicated with the sludge inlet of the stirred tank (2) and is used for breaking the sludge raw material.
7. The sludge treatment apparatus as claimed in any one of claims 4 to 6, further comprising a settling tank (7) and a third mechanical dewatering device (8), wherein the settling tank (7) has a silt inlet at the upper end thereof, a silt outlet at the lower end thereof, and a water level adjusting port at the upper end of the side wall thereof, the silt inlet being communicated with the interior of the settling tank, the silt outlet being communicated with the interior of the settling tank, the water level adjusting port being used for adding water or draining water to the settling tank to adjust the amount of water therein, the silt inlet of the settling tank (7) being communicated with the silt outlet of the sludge extraction module (1), the third mechanical dewatering device (8) having a silt inlet, a water outlet and a silt outlet, the silt inlet of the third mechanical dewatering device (8) being communicated with the silt outlet of the settling tank (7), and a third valve (9) being arranged at the communication position of the silt inlet and the silt outlet.
8. The sludge treatment plant according to claim 7, further comprising a silt drying and dewatering unit (10), wherein the silt drying and dewatering unit (10) has an incoming inlet, and the incoming inlet is configured to receive silt discharged from the silt outlet of the third mechanical dewatering device (8), and is configured to dewater and dry the silt into sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021403978.XU CN212246904U (en) | 2020-07-16 | 2020-07-16 | Oil sludge extraction unit, oil sludge extraction assembly and oil sludge treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021403978.XU CN212246904U (en) | 2020-07-16 | 2020-07-16 | Oil sludge extraction unit, oil sludge extraction assembly and oil sludge treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212246904U true CN212246904U (en) | 2020-12-29 |
Family
ID=73980101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021403978.XU Active CN212246904U (en) | 2020-07-16 | 2020-07-16 | Oil sludge extraction unit, oil sludge extraction assembly and oil sludge treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212246904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826192A (en) * | 2020-07-16 | 2020-10-27 | 华赢管道监测技术服务(湖北)有限公司 | Oil sludge extraction unit, oil sludge extraction assembly, oil sludge treatment device and oil sludge treatment method |
-
2020
- 2020-07-16 CN CN202021403978.XU patent/CN212246904U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826192A (en) * | 2020-07-16 | 2020-10-27 | 华赢管道监测技术服务(湖北)有限公司 | Oil sludge extraction unit, oil sludge extraction assembly, oil sludge treatment device and oil sludge treatment method |
| CN111826192B (en) * | 2020-07-16 | 2023-08-11 | 华赢管道监测技术服务(湖北)有限公司 | Sludge extraction unit, sludge extraction assembly, sludge treatment device and sludge treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7569137B2 (en) | Process and apparatus for treating tailings | |
| CN101428247B (en) | Pollution-free oil-containing mud cleaning treatment method and treatment system thereof | |
| CN102503055B (en) | Treatment method and treatment apparatus of oily sludge | |
| CA2510099C (en) | Separation and recovery of bitumen oil from tar sands | |
| CN103695472B (en) | A kind of changing food waste diphasic anaerobic fermentation process | |
| CN102180575B (en) | Processing method for centralized treatment and reclamation of oil-containing sludge | |
| CN101786776A (en) | Advanced treatment process of sludge containing oil | |
| CN103539325B (en) | Process for treating oil-containing sludge and system | |
| CN105555425A (en) | System for disposal of waste containing food waste or livestock manure and production of energy and method therefor | |
| JP4642203B2 (en) | Organic waste treatment methods | |
| CN107937004A (en) | A kind of delayed coking conveys with petroleum coke, is dehydrated and storage facilities | |
| CN212246904U (en) | Oil sludge extraction unit, oil sludge extraction assembly and oil sludge treatment device | |
| CN202279767U (en) | Oily sludge treatment equipment | |
| KR101555158B1 (en) | Method and system for treating sludge | |
| CN111826192B (en) | Sludge extraction unit, sludge extraction assembly, sludge treatment device and sludge treatment method | |
| CN113666593A (en) | Oil field sludge treatment system | |
| CN211226875U (en) | Oily sludge hot washing treatment system | |
| CN107265799A (en) | Oil-containing solid waste comprehensive processing technique and device | |
| CN113443797A (en) | Pretreatment system and pretreatment method for oil-containing sludge | |
| CN207581734U (en) | A kind of delayed coking conveys with petroleum coke, is dehydrated and storage facilities | |
| CN207294540U (en) | Oil-containing solid waste Integrated Processing Unit | |
| CN212293246U (en) | Pretreatment device and pretreatment system for oily sludge | |
| CN215712522U (en) | Oil field sludge treatment system | |
| CN111617562A (en) | Oil-based drilling cutting thermal desorption volatile separation and collection system and process | |
| CN213895561U (en) | Thermal cleaning treatment system for oily sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |