CN212864516U - Oily sludge treatment system - Google Patents
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- CN212864516U CN212864516U CN202021421878.XU CN202021421878U CN212864516U CN 212864516 U CN212864516 U CN 212864516U CN 202021421878 U CN202021421878 U CN 202021421878U CN 212864516 U CN212864516 U CN 212864516U
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Abstract
The utility model discloses an oily sludge treatment system. The oily sludge treatment system comprises: the device comprises a first heating mixing tank, a vibrating screen, a second heating mixing tank, a three-phase horizontal spiral separator, a buffer tank and a disc separator. The first heating mixing tank is provided with an oil-containing sludge inlet, a first steam inlet, a demulsifier inlet, a gel breaker inlet and a first conditioned sludge outlet; the vibrating screen is provided with a first conditioned sludge inlet, a solid slag outlet and a screened sludge outlet; the second heating and mixing tank is provided with a screened sludge inlet, a second steam inlet, a flocculant inlet and a second conditioned sludge outlet; the three-phase horizontal spiral separator is provided with a second conditioned sludge inlet, a first solid phase outlet, a first water phase outlet and a first oil phase outlet; the disc separator has a second water phase inlet, a second solid phase outlet, a second water phase outlet and a second oil phase outlet. The system can reduce, recycle and harmlessly treat the oily sludge, and solves the problem of environmental pollution caused by the oily sludge.
Description
Technical Field
The utility model relates to a hazardous waste handles technical field, particularly, the utility model relates to an oily sludge treatment system.
Background
The oily sludge is brown black sticky solid waste with complex components and stable chemical properties, and is sourced from crude oil extraction, oil field gathering and transportation and oil refinery sewage treatment processes. The natural world does not inherently have oily sludge, and the crude oil and the finished oil leak out due to various accident operations and equipment problems caused by various fish finished oil, crude oil related industries, civil and residential groups, individuals and the like in oil field exploitation, petroleum smelting, use, storage, transportation and the like and are mixed with water, soil and the like to form a mixture containing oil, water, soil and even other pollutants.
In general, the oil content of the oily sludge is 10-50%, and the water content is 40-90%. At present, the annual production amount of oily sludge in China reaches more than 300 million tons, the annual production of oily sludge in three oil fields of Daqing, Shengli and Liaohe is about 200 million tons, the annual production of oil fields in Xinjiang is 4-5 million tons, and the stockpiling amount is about 22 million tons. In recent years, researchers have conducted a great deal of research on the treatment technology of oily sludge, but the degree of resource utilization is low from the viewpoint of end treatment in many cases.
Substances such as oil-containing petroleum and heavy metals in the oily sludge can have certain influence on the environment if the oily sludge is not treated and discharged, and hydrocarbon substances such as petroleum volatilize and influence the quality of the atmospheric environment if the oily sludge is stored in the open air; surface water quality may be affected by surface runoff if adjacent to the surface.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model discloses an aim at propose oiliness sludge treatment system. The oily sludge treatment system can reduce, recycle and harmlessly treat oily sludge, solves the problem of environmental pollution caused by the oily sludge, improves the technical level of oily sludge treatment, and has remarkable environmental and economic benefits.
In one aspect of the present invention, the utility model provides an oily sludge treatment system. According to the utility model discloses an embodiment, this oily sludge processing system includes: a first heating and mixing tank having an oily sludge inlet, a first steam inlet, a demulsifier inlet, a breaker inlet, and a first conditioned sludge outlet; the vibrating screen is provided with a first conditioned sludge inlet, a solid slag outlet and a screened sludge outlet, and the first conditioned sludge inlet is connected with the first conditioned sludge outlet; the second heating and mixing tank is provided with a screened sludge inlet, a second steam inlet, a flocculant inlet and a second conditioned sludge outlet, and the screened sludge inlet is connected with the screened sludge outlet; the three-phase horizontal spiral separator is provided with a second conditioned sludge inlet, a first solid phase outlet, a first water phase outlet and a first oil phase outlet, and the second conditioned sludge inlet is connected with the second conditioned sludge outlet; the buffer tank is provided with a water phase material inlet and a water phase material outlet, and the water phase material inlet is connected with the first water phase outlet; the disc separator is provided with a second water phase inlet, a second solid phase outlet, a second water phase outlet and a second oil phase outlet, and the second water phase inlet is connected with the water phase material outlet.
According to the oily sludge treatment system of the embodiment of the utility model, oily sludge is conveyed into the first heating mixing tank, steam is introduced to heat the oily sludge to a specified temperature, and a gel breaker and a demulsifier are added to condition the oily sludge so as to reduce viscosity; screening large-particle solid impurities from the conditioned oily sludge through a vibrating screen, feeding the screened oily sludge into a second heating and mixing tank, introducing steam, heating to a specified temperature, and adding a flocculating agent to condition the sludge; and (3) the conditioned oily sludge enters a three-phase horizontal spiral separator for three-phase separation to obtain a first solid phase, a water phase and an oil phase respectively. Wherein, first oil phase can be retrieved and stored, and first solid phase can carry out biodegradable, pyrolysis or incineration processing, and first aqueous phase gets into the buffer tank, then further three-phase separation through the pump sending dish separator obtains second aqueous phase, oil phase, solid phase respectively. The second oil phase can be recycled and stored, the second solid phase can be subjected to biodegradation, pyrolysis or incineration disposal, and the second water phase is treated and then discharged after reaching the standard. Therefore, according to the oily sludge treatment system provided by the embodiment of the utility model, through tempering and modifying the oily sludge, the three-phase separation is carried out twice by using the three-phase horizontal screw separator and the disc separator, the oily sludge is separated into an oil phase, a water phase and a solid phase, the content of impurities (water and solid phases) in the oil phase is less than 3%, and the oily sludge can be recycled and recycled; the oil content in the solid phase is less than 3 percent, thereby reducing the resource waste and achieving the purpose of reduction. The oily sludge treatment system is simple in structure, convenient to use, capable of being widely applied to oily sludge treatment engineering, high in recycling, reducing and harmless degrees, and remarkable in environmental benefit and economic benefit.
Optionally, the treatment capacity of the oily sludge treatment system is 1-15 m3/h。
Optionally, a transfer pump is arranged between the first conditioned sludge outlet and the first conditioned sludge inlet, between the second conditioned sludge outlet and the second conditioned sludge inlet, and between the aqueous phase material outlet and the second aqueous phase inlet.
Optionally, the first heated mixing tank further has a water inlet connected to the second aqueous phase outlet.
Optionally, the oily sludge treatment system further comprises: the demulsifier comprises a demulsifier storage tank, a gel breaker storage tank and a flocculant storage tank, wherein the demulsifier storage tank is connected with the demulsifier inlet, the gel breaker storage tank is connected with the gel breaker inlet, and the flocculant storage tank is connected with the flocculant inlet.
Optionally, dosing pumps are arranged between the demulsifier storage tank and the demulsifier inlet, between the gel breaker storage tank and the gel breaker inlet, and between the flocculant storage tank and the flocculant inlet.
Optionally, the oily sludge treatment system further comprises: an oil tank connected to the first oil phase outlet and the second oil phase outlet.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an oily sludge treatment system according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the present invention, the utility model provides an oily sludge treatment system. Referring to fig. 1, according to an embodiment of the present invention, the oily sludge treatment system includes: the device comprises a first heating and mixing tank 100, a vibrating screen 200, a second heating and mixing tank 300, a three-phase horizontal screw separator 400, a buffer tank 500 and a disc separator 600. Wherein the first heating and mixing tank 100 has an oily sludge inlet 101, a first steam inlet 102, a demulsifier inlet 103, a breaker inlet 104, and a first conditioned sludge outlet 105; the vibrating screen 200 is provided with a first conditioned sludge inlet 201, a solid slag outlet 202 and a screened sludge outlet 203, and the first conditioned sludge inlet 201 is connected with the first conditioned sludge outlet 105; the second heating and mixing tank 300 is provided with a screened sludge inlet 301, a second steam inlet 302, a flocculant inlet 303 and a second conditioned sludge outlet 304, and the screened sludge inlet 301 is connected with the screened sludge outlet 203; the three-phase horizontal spiral separator 400 is provided with a second conditioned sludge inlet 401, a first solid phase outlet 402, a first water phase outlet 403 and a first oil phase outlet 404, wherein the second conditioned sludge inlet 401 is connected with the second conditioned sludge outlet 304; the buffer tank 500 is provided with an aqueous phase material inlet 501 and an aqueous phase material outlet 502, and the aqueous phase material inlet 501 is connected with the first aqueous phase outlet 403; the disc separator 600 has a second water phase inlet 601, a second solid phase outlet 602, a second water phase outlet 603 and a second oil phase outlet 604, and the second water phase inlet 601 is connected to the water phase material outlet 502.
The oily sludge treatment system according to the embodiment of the present invention is further described in detail below.
According to an embodiment of the present invention, the first heating and mixing tank 100 has an oily sludge inlet 101, a first steam inlet 102, a demulsifier inlet 103, a breaker inlet 104, and a first conditioned sludge outlet 105. The first heating and mixing tank 100 is adapted to perform a first heating conditioning of the oil-containing sludge, steam, demulsifier, and gel breaker to obtain a first conditioned sludge. Specifically, under the heating action of steam, the viscosity of the oil-containing sludge can be effectively reduced by the gel breaker and the demulsifier. In some embodiments, the first heated mixing tank 100 is a steel vessel that may be used for temporary storage, conditioning, homogenization, and heating of the oily sludge.
According to the embodiment of the present invention, a stirrer 110 may be further disposed in the first heating and mixing tank 100 to stir the materials therein.
According to the embodiment of the present invention, the average particle size of the oily sludge is not greater than 20mm, for example, 1mm, 3mm, 5mm, 10mm, 15mm, 20mm, etc. This can further improve the conditioning effect of the oily sludge. If the average particle diameter of the oily sludge to be treated does not satisfy the above conditions, it may be subjected to drum screening or crushing pretreatment in advance.
According to an embodiment of the present invention, the solid content of the oil-containing sludge is less than 20%, for example, 1%, 5%, 10%, 15%, 20%, etc. Specifically, the oil-containing sludge can be diluted to a solid content of less than 20% by adding water to the first heating and mixing tank 100 according to actual conditions, so as to facilitate the treatment of the subsequent process.
According to the embodiment of the present invention, the specific gravity of the solid phase material in the first heating and mixing tank 100 is greater than that of the liquid phase material. This can further improve the conditioning effect of the oily sludge.
According to the embodiment of the present invention, the first heating conditioning may be performed at 60 to 80 ℃, for example, 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃ or the like. This can further improve the conditioning effect of the oily sludge. Specifically, the first heat-conditioning may be controlled by high-temperature steam to be performed at the above-mentioned temperature.
According to the embodiment of the utility model, shale shaker 200 has sludge inlet 201 after the first regulation, solid sediment export 202 and screening sludge outlet 203, and sludge inlet 201 links to each other with sludge outlet 105 after the first regulation. The vibrating screen 200 is adapted to screen the first conditioned sludge to obtain solid slag and screened sludge. In particular, the vibrating screen 200 may employ equipment commonly used in the art. In some embodiments, the vibrating screen 200 has a screen mesh with a diameter of 2mm, so that large solid residues in the oily sludge can be screened out to avoid adverse effects on subsequent working sections.
According to the embodiment of the utility model, second heating and mixing jar 300 has screening back mud entry 301, second steam inlet 302, flocculating agent entry 303 and second conditioning back mud export 304, and screening back mud entry 301 links to each other with screening back mud export 203. The second heating and mixing tank 300 is adapted to perform a second heating conditioning of the screened sludge, steam, and flocculant to obtain a second conditioned sludge. Specifically, under the heating action of steam, the flocculant can further modify and condition the oily sludge so as to facilitate the subsequent three-phase separation. In some embodiments, the second heated mixing tank 300 is a steel vessel that may be used for temporary storage, conditioning, homogenization, and heating of the oily sludge.
According to the embodiment of the present invention, a stirrer 310 may be further disposed in the second heating and mixing tank 300 to stir the materials therein.
According to the embodiment of the present invention, the second heating conditioning may be performed at 60 to 80 ℃, for example, 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃ or the like. This can further improve the conditioning effect of the oily sludge. Specifically, the second heat-conditioning may be controlled by high-temperature steam to be performed at the above-mentioned temperature.
According to an embodiment of the present invention, the average particle size of the second conditioned sludge is not larger than 2mm, e.g. 0.1mm, 0.5mm, 1mm, 1.5mm, 2mm, etc. This can further facilitate the subsequent three-phase separation process.
According to an embodiment of the present invention, the solid content of the oil-containing sludge is less than 20%, for example, 1%, 5%, 10%, 15%, 20%, etc. Specifically, the oil-containing sludge can be diluted to a solid content of less than 20% by adding water to the second heating and mixing tank 300 according to actual conditions, so as to facilitate the treatment of the subsequent process.
According to the embodiment of the utility model, the spiral shell separating centrifuge 400 crouches in three-phase has the second and takes care of back mud entry 401, first solid phase export 402, first aqueous phase export 403 and first oil phase export 404, and the second takes care of back mud entry 401 and the second and takes care of back mud export 304 and link to each other. The three-phase horizontal decanter centrifuge 400 is adapted to subject the second conditioned sludge to a first three-phase separation process to obtain a first solid phase, a first aqueous phase and a first oil phase. Specifically, the three-phase horizontal screw separator is a common device in the field, and can separate the second conditioned sludge into a solid phase, a water phase and an oil phase through a centrifugal effect.
According to the embodiment of the utility model, the oily sludge temperature that gets into three-phase spiral shell separating centrifuge 400 that crouches is 60 ~ 80 ℃, and from this, the three-phase separation effect is better.
According to the utility model discloses an embodiment, buffer tank 500 has aqueous phase material inlet 501 and aqueous phase material outlet 502, and aqueous phase material inlet 501 links to each other with first aqueous phase export 403. The buffer tank 500 is adapted to temporarily store and buffer the first aqueous phase output from the three-phase horizontal screw separator 400 and to help homogenize the materials therein.
According to an embodiment of the invention, the maximum solid particle diameter in the first aqueous phase is not more than 400 μm, such as 50 μm, 100 μm, 200 μm, 300 μm, 400 μm, etc. Therefore, the three-phase separation in the subsequent working section can be further facilitated.
According to an embodiment of the present invention, the solid content of the first aqueous phase is less than 3%, and may be, for example, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 2.9%, or the like.
According to an embodiment of the present invention, the disk separator 600 has a second water phase inlet 601, a second solid phase outlet 602, a second water phase outlet 603 and a second oil phase outlet 604, the second water phase inlet 601 being connected to the water phase material outlet 502. The disk separator 600 is adapted to perform a second three-phase separation process on the first aqueous phase to obtain a second solid phase, a second aqueous phase, and a second oil phase. Specifically, the disc separator is a common device in the art, and can further separate the second aqueous phase into a solid phase, an aqueous phase and an oil phase by centrifugation.
According to the utility model discloses an embodiment, the aqueous phase material temperature that gets into dish separator 600 is 60 ~ 80 ℃, and from this, the three-phase separation effect is better.
According to the utility model discloses an embodiment, between sludge outlet 105 and the first back sludge inlet 201 of recuperating after the first recuperation, between sludge outlet 304 and the second recuperation back sludge inlet 401 after the second recuperation, 601 all is provided with delivery pump 10 between aqueous phase material export 502 and the second aqueous phase entry. The transfer pump 10 may employ equipment commonly used in the art, such as a progressive cavity pump, slurry pump, and the like.
According to an embodiment of the present invention, the first heating and mixing tank 100 also has a water inlet 106. The water inlet 106 is connected to a second aqueous phase outlet 603. Thereby, the water phase separated by the disc separator 600 may be supplied to the first heating and mixing tank 100 for diluting the oil-containing sludge.
According to the utility model discloses an embodiment, the utility model discloses an oily sludge treatment system further includes: the demulsifier comprises a demulsifier storage tank 810, a gel breaker storage tank 820 and a flocculant storage tank 830, wherein the demulsifier storage tank 810 is connected with a demulsifier inlet 103, the gel breaker storage tank 820 is connected with a gel breaker inlet 104, and the flocculant storage tank 830 is connected with a flocculant inlet 300. In some embodiments, the breaker reservoir 810, breaker reservoir 820, and flocculant reservoir 830 may be made of PE or PVC, wherein each agent may be diluted as desired.
According to the utility model discloses an embodiment, between demulsifier storage tank 810 and the demulsifier entry 103, between gel breaker storage tank 802 and the gel breaker entry 104, all be provided with dosing pump 20 between flocculant storage tank 830 and the flocculant entry 303. In some embodiments, the dosing pump 20 may be a dosing pump or a chemical pump commonly used in the art.
According to the utility model discloses an embodiment, the utility model discloses an oily sludge treatment system still further includes: an oil tank 700. The oil tank 700 is connected to a first oil phase outlet 404 and a second oil phase outlet 604. Therefore, the oil tank 700 can be used for temporarily storing and recovering the oil phase obtained by separating the three-phase horizontal screw separator 400 and the disc separator 600. In some embodiments, the oil tank 700 is a steel container.
In summary, the present invention provides an oily sludge treatment system, which has at least one of the following advantages:
(1) the equipment runs reliably, can run stably for a long period, and has low failure rate.
(2) The content of impurities (water solid phase) in the generated oil phase is less than 3 percent, the heat value is high, and the recycling degree is high.
(3) The oil content in the generated solid phase is less than 3 percent, the resource waste is reduced, and the purpose of reduction is achieved.
(4) The oil content in the generated water phase is less than 1000ppm, the oil content is low, the load of wastewater treatment can be reduced, and part of the water phase can be used as dilution water, so that the utilization rate is improved.
For convenience of understanding, the following describes an oily sludge treatment method implemented using an oily sludge treatment system according to an embodiment of the present invention. According to the embodiment of the utility model, the oily sludge treatment method comprises the following steps: the method comprises the following steps of (1) supplying oil-containing sludge, steam, a demulsifier and a gel breaker into a first heating mixing tank for first heating conditioning to obtain first conditioned sludge; feeding the first conditioned sludge into a vibrating screen for screening treatment to obtain solid slag and screened sludge; feeding the screened sludge, steam and a flocculating agent into a second heating and mixing tank for second heating and conditioning to obtain second conditioned sludge; feeding the second conditioned sludge into a three-phase horizontal spiral separator to perform first three-phase separation treatment to obtain a first solid phase, a first water phase and a first oil phase; and feeding the first water phase into a disc separator through a buffer tank for second three-phase separation treatment to obtain a second solid phase, a second water phase and a second oil phase.
According to the embodiment of the present invention, the average particle size of the oily sludge is not greater than 20mm, for example, 1mm, 3mm, 5mm, 10mm, 15mm, 20mm, etc. This can further improve the conditioning effect of the oily sludge. If the average particle diameter of the oily sludge to be treated does not satisfy the above conditions, it may be subjected to drum screening or crushing pretreatment in advance.
According to an embodiment of the present invention, the solid content of the oil-containing sludge is less than 20%, for example, 1%, 5%, 10%, 15%, 20%, etc. Specifically, the oil-containing sludge can be diluted to a solid content of less than 20% by adding water to the first heating and mixing tank 100 according to actual conditions, so as to facilitate the treatment of the subsequent process.
According to the embodiment of the present invention, the first heating conditioning may be performed at 60 to 80 ℃, for example, 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃ or the like. This can further improve the conditioning effect of the oily sludge. Specifically, the first heat-conditioning may be controlled by high-temperature steam to be performed at the above-mentioned temperature.
According to the embodiment of the present invention, the second heating conditioning may be performed at 60 to 80 ℃, for example, 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃ or the like. This can further improve the conditioning effect of the oily sludge. Specifically, the second heat-conditioning may be controlled by high-temperature steam to be performed at the above-mentioned temperature.
According to an embodiment of the present invention, the average particle size of the second conditioned sludge is not larger than 2mm, e.g. 0.1mm, 0.5mm, 1mm, 1.5mm, 2mm, etc. This can further facilitate the subsequent three-phase separation process.
According to an embodiment of the present invention, the solid content of the oil-containing sludge is less than 20%, for example, 1%, 5%, 10%, 15%, 20%, etc. Specifically, the oil-containing sludge can be diluted to a solid content of less than 20% by adding water to the second heating and mixing tank 300 according to actual conditions, so as to facilitate the treatment of the subsequent process.
According to the embodiment of the utility model, the oily sludge temperature that gets into three-phase spiral shell separating centrifuge crouches is 60 ~ 80 ℃, and from this, the three-phase separation effect is better.
According to an embodiment of the invention, the maximum solid particle diameter in the first aqueous phase is not more than 400 μm, such as 50 μm, 100 μm, 200 μm, 300 μm, 400 μm, etc. Therefore, the three-phase separation in the subsequent working section can be further facilitated.
According to an embodiment of the present invention, the solid content of the first aqueous phase is less than 3%, and may be, for example, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 2.9%, or the like.
According to the utility model discloses an embodiment, the aqueous phase material temperature that gets into dish separating centrifuge is 60 ~ 80 ℃, and from this, the three-phase separation effect is better.
According to the embodiment of the utility model, the oily sludge treatment method of the utility model can further comprise: the second aqueous phase is fed to a first heated mixing tank for first heated conditioning. Thereby, the water phase separated by the disc separator can be supplied to the first heating and mixing tank for diluting the oil-containing sludge.
In addition, the oily sludge treatment method is implemented by using the oily sludge treatment system of the embodiment, and it can be understood that all the features and advantages described above for the oily sludge treatment system are also applicable to the oily sludge treatment method, and are not described again.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (6)
1. An oil-containing sludge treatment system, comprising:
a first heating and mixing tank having an oily sludge inlet, a first steam inlet, a demulsifier inlet, a breaker inlet, and a first conditioned sludge outlet;
the vibrating screen is provided with a first conditioned sludge inlet, a solid slag outlet and a screened sludge outlet, and the first conditioned sludge inlet is connected with the first conditioned sludge outlet;
the second heating and mixing tank is provided with a screened sludge inlet, a second steam inlet, a flocculant inlet and a second conditioned sludge outlet, and the screened sludge inlet is connected with the screened sludge outlet;
the three-phase horizontal spiral separator is provided with a second conditioned sludge inlet, a first solid phase outlet, a first water phase outlet and a first oil phase outlet, and the second conditioned sludge inlet is connected with the second conditioned sludge outlet;
the buffer tank is provided with a water phase material inlet and a water phase material outlet, and the water phase material inlet is connected with the first water phase outlet;
the disc separator is provided with a second water phase inlet, a second solid phase outlet, a second water phase outlet and a second oil phase outlet, and the second water phase inlet is connected with the water phase material outlet.
2. The oily sludge treatment system according to claim 1, wherein a transfer pump is arranged between the first conditioned sludge outlet and the first conditioned sludge inlet, between the second conditioned sludge outlet and the second conditioned sludge inlet, and between the aqueous phase material outlet and the second aqueous phase inlet.
3. The oily sludge treatment system of claim 1 wherein the first heated mixing tank further has a water inlet connected to the second aqueous phase outlet.
4. The oily sludge treatment system of claim 1 further comprising: the demulsifier comprises a demulsifier storage tank, a gel breaker storage tank and a flocculant storage tank, wherein the demulsifier storage tank is connected with the demulsifier inlet, the gel breaker storage tank is connected with the gel breaker inlet, and the flocculant storage tank is connected with the flocculant inlet.
5. The oil-containing sludge treatment system according to claim 4 wherein dosing pumps are disposed between the emulsion breaker storage tank and the emulsion breaker inlet, between the gel breaker storage tank and the gel breaker inlet, and between the flocculant storage tank and the flocculant inlet.
6. The oily sludge treatment system of claim 1 further comprising: an oil tank connected to the first oil phase outlet and the second oil phase outlet.
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| CN202021421878.XU CN212864516U (en) | 2020-07-17 | 2020-07-17 | Oily sludge treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777307A (en) * | 2020-07-17 | 2020-10-16 | 北京云水浩瑞环境科技有限公司 | Oily sludge treatment system and method |
| CN113264656A (en) * | 2021-07-02 | 2021-08-17 | 沈阳环境科学研究院 | Device and method for classifying and collecting oily sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777307A (en) * | 2020-07-17 | 2020-10-16 | 北京云水浩瑞环境科技有限公司 | Oily sludge treatment system and method |
| CN113264656A (en) * | 2021-07-02 | 2021-08-17 | 沈阳环境科学研究院 | Device and method for classifying and collecting oily sludge |
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