CN210457910U - Layered oil sludge treatment system - Google Patents
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- CN210457910U CN210457910U CN201921040669.8U CN201921040669U CN210457910U CN 210457910 U CN210457910 U CN 210457910U CN 201921040669 U CN201921040669 U CN 201921040669U CN 210457910 U CN210457910 U CN 210457910U
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Abstract
The utility model relates to a layering sludge treatment system. The layered oil sludge treatment system comprises a first sludge storage pool for layering an oil layer, a water layer and a sludge layer of the oily sludge; the oil collecting pool, the water collecting pool and the second sludge storage pool are used for respectively collecting an oil layer, a water layer and a sludge layer from the first sludge storage pool; the oil storage pool is connected with the oil collecting pool; the sewage treatment equipment is connected with the water collecting tank; the centrifugal machine is connected with the second sludge storage pool and is used for dehydrating the sludge layer to obtain dehydrated oil sludge and oily wastewater; the oil-water separator is connected with the centrifuge and is used for carrying out oil-water separation on the oily wastewater; the oil storage tank is connected with the oil-water separator; the oil-water separator is also connected with the sewage treatment equipment. The utility model discloses a layering sludge treatment system can realize innoxious, cleaning and the resourceful treatment to oily sludge, has improved oily sludge's availability.
Description
Technical Field
The utility model belongs to the technical field of the oily sludge treatment, especially, relate to a layering sludge treatment system.
Background
With the development of the petroleum industry, the yield of oil-containing sludge is increasing. The oily sludge, namely oily silt, refers to a large amount of oily solid wastes generated in the processes of crude oil and natural gas exploration, exploitation, gathering, transportation, refining and the like, and is generally divided into oily sludge in oil fields and oily sludge generated in petrochemical industries (mainly oil refineries). The oily sludge of the oil field comprises the oily sludge on the ground generated in the oil field development process, the oily waste centralized stacked in an oil pit, the oily sludge generated at the bottom of a tank in the production operation of a combined station and the oily sludge generated in the operation of a sewage station.
The oily sludge refers to a mixture of various forms in which crude oil or product oil is mixed into soil or other media, oil components in the mixture cannot be directly recovered and can cause environmental pollution, and the oily sludge is mainly generated in oil fields and oil refineries.
The oily sludge is huge in volume, if the oily sludge is directly discharged without being treated, not only a large amount of cultivated land is occupied, but also the soil, water and air around the oily sludge can be polluted, and the pollution can influence the growth and development of crops, so that toxic substances enter a food chain and influence the health of people. The treatment of oily sludge is always a difficult problem in the petroleum and petrochemical industry.
The oily sludge is a precious secondary resource, and if the oily sludge is discharged randomly without treatment, the oily sludge not only causes huge damage to the environment, but also is huge waste of resources. With the increasingly strict and perfect environmental regulations, the oil-containing sludge harmless, clean and recycling treatment technology will become a necessary trend for the development of sludge treatment technology.
The existing method for treating the oily sludge mainly comprises the following steps: incineration, coking, landfill, extraction, pyrolysis, solidification, chemical emulsion breaking, biological treatment and the like, which can recycle useful substances of the oil sludge to a certain extent, but cause secondary pollution to the environment, require great investment, and have the problems of large investment and low treatment efficiency in the treatment of the oil-containing sludge pit; fundamentally, the prior art does not achieve the harmless treatment and resource utilization of the oily sludge.
The oily sludge in the waste oil pit discarded in the open air can form three layers of layered non-uniform phases of oil, water and sludge after being deposited for many years, and the oil pit is in the presence of the non-uniform phase, so that a new layered oil sludge treatment system is very necessary to realize harmless, clean and resource utilization of the oily sludge.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a layering sludge treatment system to solve the technical problem who exists among the prior art.
In order to achieve the above object, the utility model provides a layering sludge treatment system, layering sludge treatment system includes: the first sludge storage tank is used for layering an oil layer, a water layer and a sludge layer of the oily sludge; the oil collecting pool, the water collecting pool and the second sludge storage pool are used for respectively collecting an oil layer, a water layer and a sludge layer from the first sludge storage pool; the oil storage pool is connected with the oil collecting pool; the sewage treatment equipment is connected with the water collecting tank; the centrifugal machine is connected with the second sludge storage pool and is used for dehydrating the sludge layer to obtain dehydrated oil sludge and oily wastewater; the oil-water separator is connected with the centrifuge and is used for carrying out oil-water separation on the oily wastewater; the oil storage tank is connected with the oil-water separator; the oil-water separator is also connected with the sewage treatment equipment.
Preferably, the stratified sludge treatment system further comprises a blender; the oil storage pool, the oil storage tank and the centrifuge are all connected with the stirrer.
Preferably, the stratified sludge treatment system further comprises an oily sludge modifier agitation tank connected to the agitator.
Preferably, the sewage treatment equipment comprises an oil-water separator connected with the water collecting tank, and the oil-water separator is further connected with the oil storage tank.
Preferably, the sewage treatment equipment further comprises a materialization triple box, an air flotation machine, a hydrolysis acidification box, a contact oxidation box and a sedimentation tank; the oil-water separator, the materialization triple box, the air floatation machine, the hydrolysis acidification box, the contact oxidation box and the sedimentation tank are sequentially connected.
Preferably, the stratified oil sludge treatment system further comprises a gas-fired heat conduction oil boiler for providing a heat source for the first sludge storage pool, the second sludge storage pool, the oil-water separator, the oil storage tank, the oil collection pool and/or the oil storage pool; and/or the centrifuge is a decanter centrifuge.
Preferably, the mixer is a double horizontal shaft forced mixer.
Preferably, the stratified sludge treatment system further comprises a drying apparatus connected to the centrifuge for drying the dewatered sludge; and/or a mud layer sieving device is also arranged between the second mud storage pool and the centrifugal machine.
Preferably, a separation system is further arranged between the oil collecting pool and the oil storage pool, and the separation system comprises an oil layer sieving device, a barrel tank and an oil layer oil-water separator which are sequentially connected; the oil layer sieving device is connected with the oil collecting pool, and the oil layer oil-water separator is connected with the oil storage pool and the sewage treatment equipment.
Preferably, the stratified sludge treatment system is also in fluid communication with an exhaust gas purifier.
The utility model discloses following beneficial effect has at least:
(1) the utility model provides a layering sludge treatment system structure sets up rationally, and application scope is wide, and the treatment investment is little, and the treatment effeciency is high, can administer non-homogeneous oily sludge pit with the mode of layering excavation, can effectively separate oil, mud, water, draws the high concentration oil reservoir to reduce waste water and bed mud and receive the oil reservoir in the treatment process and pollute, effectively reduce the waste water treatment load, and help fatlute fuel calorific value and the ratio design that takes shape, be favorable to improving resource product quality.
(2) The utility model provides a layering sludge treatment system can separate the oil content that contains in retrieving mud layer and the water layer, has improved the utilization ratio of oil content in the oily mud, has effectively reduced the waste water treatment load simultaneously, further makes the waste water after sewage treatment device handles can satisfy sewage treatment plant index of intaking and discharges into sewage treatment plant.
(3) The utility model provides an among some preferred embodiments, centrifuge and drying equipment that layering sludge treatment system includes can fall to 5 ~ 25% with the moisture content of dehydration fatlute, are favorable to making the dehydration fatlute reach the purpose of adjustment moisture and calorific value when subsequently being applied to production fatlute fuel, can increase substantially the calorific value of fatlute fuel.
(4) The layered oil sludge treatment system can extract available components from the oil-containing sludge for producing oil sludge fuel, and improves the availability of the oil-containing sludge; the layered oil sludge treatment system can completely realize harmless, clean and resource treatment of the oil-containing sludge.
Drawings
The drawings of the present invention are provided for illustrative purposes only, and the proportion and the number of each component in the drawings are not necessarily consistent with those of actual products.
Fig. 1 is a schematic structural diagram of a stratified oil sludge treatment system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a stratified sludge treatment system according to another embodiment of the present invention.
In the figure: 1: a first sludge storage tank; 2: a second sludge storage tank; 3: a centrifuge; 4: an oil collecting pool; 5: an oil storage pool; 6: a water collecting tank; 7: sewage treatment equipment; 8: an oil-water separator; 9: an oil storage tank; 10: a blender; 11: an oil-containing sludge modifier stirring tank; 12: an exhaust gas purifier; 13: a sewage treatment plant; 14: an oil layer screening device; 15: a barrel groove; 16: oil layer oil-water separator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will clearly and completely describe the technical solutions of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a layered oil sludge treatment system, and figure 1 is a schematic structural diagram of the layered oil sludge treatment system in a specific embodiment of the utility model; fig. 2 is a schematic structural diagram of a stratified sludge treatment system according to another embodiment of the present invention.
In the present invention, for example, as shown in fig. 1 and 2, the layered sludge treatment system includes a first sludge storage tank 1 for layering an oil layer, a water layer, and a sludge layer of oily sludge; an oil collecting pool 4, a water collecting pool 6 and a second mud storage pool 2 which are used for respectively collecting an oil layer, a water layer and a mud layer from the first mud storage pool 1; an oil reservoir 5 connected to the oil reservoir 4; a sewage treatment device 7 connected with the water collecting tank 6; the centrifuge 3 is connected with the second sludge storage pool 2 and is used for dehydrating a sludge layer to obtain dehydrated oil sludge and oily wastewater; a water oil separator 8 connected to the centrifuge 3 (e.g., a horizontal screw centrifuge) for separating water from oil in oily wastewater; an oil storage tank 9 connected to the oil-water separator 8; the oil-water separator 8 is also connected with the sewage treatment equipment 7; in the utility model, the oil collecting tank 4, the water collecting tank 6 and the second sludge storage tank 2 are all connected with the first sludge storage tank 1; the utility model discloses in, work as first store up mud pond 1 and be located also record outdoor mud pond of storage when outdoor, work as the second store up mud pond 2 also record respectively indoor mud pond, the indoor oil storage tank of storage when oil storage tank 9 is located indoorly.
In the utility model, the first sludge storage tank 1 is used for layering the oil layer, the water layer and the sludge layer of the oily sludge (raw sludge), for example, after the oily sludge is stood in the first sludge storage tank 1 for about 24 hours, the oil, the water and the sludge can be obviously layered, and the oil content of the water layer and the sludge layer is lower; in the present invention, the connection between the components included in the layered sludge treatment system may be, for example, a pipe connection or a transmission connection; in the present invention, each component included in the stratified sludge treatment system may be configured to extract a substance to be treated, for example, by using a pump as a power source; in the present invention, for example, the oil collecting tank 4, the water collecting tank 6 and the second sludge storing tank 2 all use a pump as a power source to respectively extract and collect the oil layer, the water layer and the sludge layer from the first sludge storing tank 1; the utility model discloses in, oil collecting tank 4 the oil storage tank 5 with the bottom of the pool of water catch bowl 6 can be for the slope end for example to set up and separate and the guiding gutter, establish the principal post and walk the guidance tape in the pond, the top cap forms well field formula square, establishes rain-proof awning.
The utility model provides an among the layering sludge treatment system, the oil reservoir: the upper layer of waste oil (oil layer) is temporarily stored in the oil collecting tank 4 and the oil storage tank 5 in sequence; the water layer: temporarily storing in a water collecting tank 6, wherein the water collecting tank 6 also plays a role of a regulating tank, and a water layer is treated by the sewage treatment equipment 7 and then discharged into the sewage treatment plant 13 according to the water inlet index of the sewage treatment plant 13; the mud layer: the method comprises the steps of discharging the wastewater from a first sludge storage tank 1 to a second sludge storage tank 2 for temporary storage, then dehydrating a sludge layer by using a centrifuge 3 to obtain dehydrated sludge and oily wastewater, treating the oily wastewater by using an oil-water separator 8, temporarily storing the separated waste oil in an oil storage tank 9 for production, treating the separated wastewater by using a sewage treatment device 7 to meet the requirement of the water inlet index of a sewage treatment plant 13 and discharging the wastewater into the sewage treatment plant 13, executing the first-level standard B standard of pollutant discharge Standard of municipal Sewage treatment plant (GB18918-2002) on the effluent of the sewage treatment plant 13, and finally taking the sewage as Xinglong bubble.
The layered oil sludge treatment system in the utility model has reasonable structure, wide application range, small treatment investment and high treatment efficiency, can treat non-homogeneous outdoor oily sludge pits in a layered excavation mode, can effectively separate oil, mud and water, extract a high-concentration oil layer, reduce the pollution of the oil layer caused by waste water and bottom mud in the treatment process, effectively reduce the waste water treatment load, is beneficial to the design of the ratio of oil sludge fuel heat value and forming and is beneficial to improving the quality of resource products; the utility model provides a layering sludge treatment system can separate the oil content that contains in retrieving mud layer and the water layer, has improved the utilization ratio of oil content in the oily mud, has effectively reduced the waste water treatment load simultaneously, further makes the waste water after sewage treatment device handles can satisfy sewage treatment plant index of intaking and discharges into sewage treatment plant.
According to some preferred embodiments, the stratified sludge treatment system further comprises a blender 10 (e.g., a double horizontal shaft forced blender); the oil storage pool 5, the oil storage tank 9 and the centrifuge 3 are all connected with the stirrer 10; the utility model discloses in, mixer 10 be used for the oil storage pool 5 oil content (waste oil) and mud layer warp in the oil storage tank 9 the mixture of the dehydration fatlute that obtains behind the 3 centrifugal dehydration of centrifuge.
According to some preferred embodiments, the stratified sludge treatment system further comprises an oily sludge modifier agitation tank 11 connected to the agitator 10. In the present invention, the oil-containing sludge modifier stirring tank 11 is used for stirring and mixing the oil-containing sludge modifier, and the stirring and mixing of the oil-containing sludge modifier can be performed, for example, in a micro-negative pressure state; in the present invention, the oily sludge modifier may be, for example, an oily sludge modifier in the prior art, the oily sludge modifier stirring tank 11 may be, for example, connected to a raw material storage tank, and each raw material component contained in the oily sludge modifier is stored in different raw material storage tanks by a material lifting machine or a direct conveying method; in the present invention, the feeding ratio of each raw material component of the oil-containing sludge modifier can be controlled by, for example, a computer.
The utility model discloses in, when still including during the oily sludge modifier stirred tank 11, mixer 10 is used for the oil storage pool 5 oil content (waste oil), mud layer warp in the oil storage tank 9 the dehydration fatlute that obtains after 3 centrifugal dehydration of centrifuge and the mixture of the oily sludge modifier in the oily sludge modifier stirred tank 11. The utility model discloses in, mixer 10 for example can also connect gradually with make-up machine (for example full-automatic make-up machine), drying-machine, for example, centrifugal dehydration fatlute, waste oil and oily sludge modifier carry to full-automatic make-up machine after the misce bene in the forced mixer of double horizontal axle, fashioned oily sludge burning piece gets into the drying-machine (provides the heat source by gas conduction oil boiler) low temperature (45-50 ℃) stoving after 2h, places the product storage area territory (product storehouse) and stews 12h, can obtain the moisture content and finally take off to the oily sludge fuel piece below 5%, for example.
According to some preferred embodiments, the sewage treatment device 7 comprises an oil-water separator connected to the water collecting tank 6, and the oil-water separator is further connected to the oil storage tank 9, so that the water layer containing a small amount of oil can separate waste water and waste oil from the oil-water separator, and the waste oil can be temporarily stored in the oil storage tank 9 for subsequent recycling in production.
According to some preferred embodiments, the sewage treatment plant 7 is also connected to a sewage treatment plant 13.
According to some preferred embodiments, the sewage treatment device 7 further comprises a materialization triple box, an air flotation machine, a hydrolysis acidification box, a contact oxidation box and a sedimentation tank; the oil-water separator, the materialization triple box, the air flotation machine, the hydrolysis acidification box, the contact oxidation box and the sedimentation tank are sequentially connected; the utility model discloses in, the sedimentation tank is connected with sewage treatment plant 13 for the water layer warp the waste water that oil water separator separated passes through in proper order sewage treatment plant 13 is gone into to materialization triplex box, air supporting machine, hydrolysis-acidification case, contact oxidation case and sedimentation tank back discharge.
According to some preferred embodiments, the stratified oil sludge treatment system further comprises a gas-fired thermal oil boiler (for example, a 1000kW gas-fired thermal oil boiler) for providing a heat source to the first sludge storage tank 1, the second sludge storage tank 2, the oil-water separator 8, the oil storage tank 9, the oil collection tank 4 and/or the oil storage tank 5; the utility model discloses in, the gas conduction oil boiler be used for first mud storage tank 1 the second mud storage tank 2 oil water separator 8 the oil storage tank 9 the oil catch bowl 4 and/or the oil storage tank 5 keeps warm to can make oil, mud temperature keep about 40 ℃.
According to some preferred embodiments, the stratified oil sludge treatment system comprises a blender, and the stratified oil sludge treatment system further comprises a gas-fired heat transfer oil boiler for providing a heat source for the first sludge storage tank 1, the second sludge storage tank 2, the oil-water separator 8, the oil storage tank 9, the oil collection tank 4, the oil storage tank 5 and/or the blender 10; the utility model discloses in, the gas conduction oil boiler be used for first mud storage tank 1 the second mud storage tank 2 oil water separator 8 the oil storage tank 9 the oil catch basin 4 the oil storage tank 5 and/or oil, mud in the mixer 10 keep warm to can make oil, mud temperature keep about 40 ℃.
According to some preferred embodiments, the centrifuge 3 is a decanter centrifuge.
According to some preferred embodiments, the blender 10 is a double horizontal shaft forced blender.
According to some preferred embodiments, the stratified sludge treatment system further comprises a drying apparatus (not shown) connected to the centrifuge 3 for drying the dewatered sludge; and/or a mud layer sieving device (not shown in the figure) is arranged between the second mud storage pool 2 and the centrifuge 3; in the utility model discloses in, drying equipment is used for further reducing the moisture in the dehydration fatlute, centrifuge 3 and drying equipment that layering fatlute processing system includes can reduce the moisture content of dehydration fatlute to 5 ~ 25%, are favorable to making the dehydration fatlute reach the purpose of adjusting moisture and calorific value when subsequent being applied to production fatlute fuel, can increase substantially the calorific value of fatlute fuel; in the utility model, the mud layer sieving device is used for removing large-particle solid wastes contained in the mud layer; when the layered oil sludge treatment system comprises the mud layer sieving device, the mud layer sieving device is utilized to sieve out large-particle solid wastes, then the sieved mud is separated into oily wastewater and dehydrated oil sludge by a centrifuge 3, and the oily wastewater enters an oil-water separator 8 to separate waste oil and wastewater; when the layered oil sludge treatment system further comprises the drying equipment (in a low-temperature drying mode), the dehydrated oil sludge enters the drying equipment to further remove moisture; the utility model discloses in, drying equipment for example can also by gas conduction oil boiler provides the heat source, makes the temperature of dehydration fatlute in the drying equipment keeps at 40 ~ 50 ℃.
According to some preferred embodiments, a separation system is further disposed between the oil collecting pool 4 and the oil storing pool 5, for example, as shown in fig. 2, the separation system comprises an oil layer sieving device 14, a barrel tank 15 (e.g. a conical barrel tank) and an oil layer oil-water separator 16 which are connected in sequence; the oil layer sieving device 14 is connected with the oil collecting pool 4, and the oil layer oil-water separator 16 is connected with the oil storing pool 5 and the sewage treatment device 7. The utility model discloses in, the oil reservoir sieving mechanism 14 is arranged in getting rid of the bold solid waste who contains in the oil reservoir the utility model discloses in, preferably will oil reservoir process in the oil collecting tank 4 the oil reservoir sieving mechanism 14 separates bold solid waste, and the oil reservoir after the coarse screening is put into carry out the dewatering in the vat 15 and arrange the sediment, let in the oil reservoir material and the water natural sedimentation that the proportion is great than oil extremely vat 15 bottom, water draw the oil reservoir after with the residue material separation and let in oil reservoir water oil separating centrifuge 16 in to 16 separation moisture (waste water) of oil reservoir water separating centrifuge and oil content (waste oil), oil content extraction return oil storage tank 5 is reserve, and moisture (waste water) lets in carry out waste water treatment in the sewage treatment device 7.
According to some preferred embodiments, the layered oil sludge treatment system further comprises a storage tank for collecting solid waste screened from the oil layer screening device 14 or the mud layer screening device, the storage tank is provided with a cleaning system for steam hot water cleaning of the solid waste in the storage tank, the storage tank is further connected with the oil-water separator 8, clean solid waste is transported to a landfill site by a transport vehicle for landfill, oil-water (oily wastewater) washed is collected and pumped to the oil-water separator 8 for oil-water separation, separated oil (waste oil) is pumped to an oil storage tank 9, and separated water (wastewater) is pumped to the sewage treatment device 7; in the present invention, the oil layer sieving device 14 or the mud layer sieving device may be connected with the reservoir, for example, in a conveying manner. In the utility model discloses in, the oil layer sieve device and/or the mud layer sieve device can be for example the separator that sieves that has the screen cloth.
According to some preferred embodiments, the stratified sludge treatment system is also in fluid communication with an exhaust purifier 12; preferably, the waste gas purifier 12 is a low-temperature plasma waste gas purifier, and is configured to purify waste gas generated in the process of treating oil-containing sludge by the stratified oil sludge treatment system, so that the purified waste gas can be directly discharged into the air.
In a specific embodiment, the layered sludge treatment system of the present invention is used for treating oily sludge, and the working process is as follows:
after the oily sludge is kept still in the first sludge storage pool for about 24 hours, the oily sludge can be divided into three layers, namely oil (22.98%), water (40%, oil content of 0.02%) and sludge (37%, wherein the water content is 78.4%, the solid content is 21.6%, and the oil content is 0.006%); the oil, water and mud can be separated obviously, and the oil content of the water layer and mud layer is lower.
Oil layer: the upper waste oil is temporarily stored in the oil collecting tank and the oil storage tank in sequence.
Water layer: temporarily storing in a collecting tank, wherein the collecting tank also plays a role of a regulating tank, discharging into a sewage treatment plant after being treated by sewage treatment equipment, and the effluent of the sewage treatment plant executes the primary standard B standard of discharge Standard of pollutants for municipal Sewage treatment plant (GB18918-2002), and finally the sewage containing body is Xinglong bubble; the waste oil separated by the oil-water separator in the sewage treatment equipment is temporarily stored in the oil storage tank and then is reused for production.
A mud layer: the method comprises the steps of discharging the waste water from a first sludge storage pool to a second sludge storage pool for temporary storage, dewatering a sludge layer by using a centrifugal machine to obtain dewatered oil sludge and oily wastewater, dewatering the dewatered oil sludge to 69% and increasing the solid content to 31%, dewatering the dewatered oil sludge by using a drying device to reduce the water content of the dewatered oil sludge to 15%, treating the oily wastewater by using an oil-water separator, temporarily storing the separated waste oil in an oil storage tank for production, treating the separated wastewater by using a wastewater treatment device, discharging the treated wastewater into a park sewage treatment plant, and executing a first-level standard B standard of pollutant discharge standard of urban sewage treatment plant (GB18918-2002) on effluent of the sewage treatment plant, wherein the final sewage containing body is Xinglong bubble.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A stratified sludge treatment system, comprising:
the first sludge storage tank is used for layering an oil layer, a water layer and a sludge layer of the oily sludge;
the oil collecting pool, the water collecting pool and the second sludge storage pool are used for respectively collecting an oil layer, a water layer and a sludge layer from the first sludge storage pool;
the oil storage pool is connected with the oil collecting pool;
the sewage treatment equipment is connected with the water collecting tank;
the centrifugal machine is connected with the second sludge storage pool and is used for dehydrating the sludge layer to obtain dehydrated oil sludge and oily wastewater;
the oil-water separator is connected with the centrifuge and is used for carrying out oil-water separation on the oily wastewater;
the oil storage tank is connected with the oil-water separator;
the oil-water separator is also connected with the sewage treatment equipment.
2. The stratified sludge treatment system of claim 1, wherein:
the layered oil sludge treatment system also comprises a stirrer;
the oil storage pool, the oil storage tank and the centrifuge are all connected with the stirrer.
3. The stratified sludge treatment system of claim 2, wherein:
the layered oil sludge treatment system also comprises an oil-containing sludge modifier stirring tank connected with the stirrer.
4. The stratified sludge treatment system of claim 1, wherein:
the sewage treatment equipment comprises an oil-water separator connected with the water collecting tank, and the oil-water separator is also connected with the oil storage tank.
5. The stratified sludge treatment system of claim 4, wherein:
the sewage treatment equipment also comprises a materialization triple box, an air flotation machine, a hydrolysis acidification box, a contact oxidation box and a sedimentation tank;
the oil-water separator, the materialization triple box, the air floatation machine, the hydrolysis acidification box, the contact oxidation box and the sedimentation tank are sequentially connected.
6. The stratified sludge treatment system as claimed in any one of claims 1 to 5, wherein:
the layered oil sludge treatment system also comprises a gas-fired heat conduction oil boiler for providing a heat source for the first sludge storage pool, the second sludge storage pool, the oil-water separator, the oil storage tank, the oil collection pool and/or the oil storage pool; and/or
The centrifuge is a horizontal screw centrifuge.
7. The stratified sludge treatment system of claim 2, wherein:
the stirrer is a forced stirrer with double horizontal shafts.
8. The stratified sludge treatment system as claimed in any one of claims 1 to 5, wherein:
the layered oil sludge treatment system also comprises a drying device which is connected with the centrifugal machine and is used for drying dehydrated oil sludge; and/or
And a mud layer sieving device is also arranged between the second mud storage tank and the centrifugal machine.
9. The stratified sludge treatment system as claimed in any one of claims 1 to 5, wherein:
a separation system is also arranged between the oil collecting pool and the oil storage pool, and comprises an oil layer sieving device, a barrel tank and an oil layer oil-water separator which are sequentially connected;
the oil layer sieving device is connected with the oil collecting pool, and the oil layer oil-water separator is connected with the oil storage pool and the sewage treatment equipment.
10. The stratified sludge treatment system as claimed in any one of claims 1 to 5, wherein:
the stratified oil sludge treatment system is also in fluid communication with the exhaust gas purifier.
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