CN210595734U - Oily sludge treatment system - Google Patents
Oily sludge treatment system Download PDFInfo
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- CN210595734U CN210595734U CN201921452191.XU CN201921452191U CN210595734U CN 210595734 U CN210595734 U CN 210595734U CN 201921452191 U CN201921452191 U CN 201921452191U CN 210595734 U CN210595734 U CN 210595734U
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Abstract
The utility model relates to an oily sludge treatment system, including reservoir, heating device and the extraction well that is used for saving pending fatlute material, the reservoir is for arranging underground and the structure of surface prevention of seepage in, and heating device and extraction well setting are in the reservoir, be used for respectively treating the fatlute material and heat and extract the volatile pollutant after heating. The utility model discloses borrow the notion of box processing apparatus for reference, designed a fatlute thermal treatment hold up tank structure, built-in heating device is W type radiant tube, and the radiant tube quantity of the size of hold up tank and configuration can be adjusted according to actual need to handle the oily mud of different scales. Compared with the traditional pile-building type ectopic thermal desorption process, the method saves the material consumption, can repeatedly utilize the heating storage pool, and avoids the waste of the disposable outer cement heat-insulating covering layer.
Description
Technical Field
The utility model relates to an oily sludge treatment technical field, concretely relates to oily sludge treatment system.
Background
Oily sludge, called oil sludge for short, is oily solid waste produced in the processes of oil exploitation, transportation, refining and oily sewage treatment, and is an emulsifying system formed by firmly bonding petroleum hydrocarbons, colloids, asphaltenes, silt, inorganic flocs, organic flocs, water and other organic matters and inorganic matters together. The components of the oil are very complex, and the oil contains a large amount of solid waste such as crude oil, aging oil, solid suspended matters, bacterial matters and the like.
The oil sludge contains hundreds of toxic and harmful compounds, and some compounds (polycyclic aromatic hydrocarbon and the like) have 'three-cause' effect. As an oil field solid waste, oil sludge contains a large amount of petroleum hydrocarbon substances, and the oil sludge can generate great risks and hazards after entering the environment without being treated, so that the air permeability of soil is poor, and the microecology of the soil is damaged. In addition, the oily sludge often contains benzene compounds, phenols and the like. The Environmental Protection Agency (EPA) ranks the pollutants as priority pollutants, and has strict limits on the emission, and China also lists oil sludge in the national records of hazardous wastes. At present, local discharge standards for treatment and disposal of oily sludge are established in Heilongjiang province, Shaanxi province and Uygur autonomous region in Xinjiang.
The treatment method of the oily sludge mainly comprises pyrolysis, hot washing, biodegradation, chemical oxidation and chemical extraction. Because of the defects of incomplete oil removal in the hot washing treatment, long biodegradation treatment period, high chemical oxidation cost, high reagent residue in chemical extraction, large consumption of an extracting agent in chemical extraction and the like, the existing heat treatment method gradually becomes a hot spot in oil sludge treatment.
In the heat treatment method, the pyrolysis furnace has a small treatment scale, so that the pyrolysis treatment scale is small (generally less than 10t/h), and the traditional ex-situ stacking heat treatment needs a large amount of covering and blocking materials, so that a large amount of building waste and resource waste are caused, and therefore, a method for treating the oil sludge with good treatment effect, large treatment capacity, energy conservation and consumption reduction is urgently needed.
SUMMERY OF THE UTILITY MODEL
To the above not enough among the prior art, the utility model provides a novel oily sludge treatment system, this system use for reference box processing apparatus's notion, have designed a fatlute thermal treatment storage pond structure, and built-in W type radiant tube causes the petroleum hydrocarbon pollutant to volatilize to the settlement temperature to fatlute heating, then carries out extraction processing to the pollutant.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the oil-containing sludge treatment system comprises a storage pool, a heating device and an extraction well, wherein the storage pool is used for storing oil sludge materials to be treated, the storage pool is a structure which is arranged underground and has an anti-seepage surface, and the heating device and the extraction well are arranged in the storage pool and are respectively used for heating the oil sludge materials to be treated and extracting pollutants volatilized after heating.
Preferably, the extraction well is arranged between the two heating devices and is used for extracting the pollutants volatilized after heating.
The heating device is a W-shaped radiant tube.
One end of the W-shaped radiant tube is provided with a gas inlet and a burner and used for providing a heat source for the W-shaped radiant tube, the other end of the W-shaped radiant tube is closed, an air preheating tube with two closed ends is arranged on the inner side of the closed end face of the W-shaped radiant tube, and a first flue gas outlet is formed in the side face close to the closed end face of the W-shaped radiant tube; an air guide pipe is arranged in the air preheating pipe, two ends of the air guide pipe are opened, one opening end of the air guide pipe extends to be close to the bottom of the air preheating pipe, and the other opening end of the air guide pipe extends out of the closed end face of the W-shaped radiant tube; the air preheating pipe is communicated with a fuel gas inlet of the combustor through a branch pipe.
The device is characterized in that a preheating coil is arranged in a local or whole area of the whole inner wall of the storage pool, and is reinforced by adopting measures such as a base or a tripod and the like, so that the device is used for preserving the heat of the oil sludge material to be treated in the storage pool.
And a flue gas inlet and a second flue gas outlet are respectively arranged at two ends of the preheating coil pipe, the flue gas inlet is communicated with the first flue gas outlet on the W-shaped radiant tube, and the second flue gas outlet extends to the outside of the storage tank, is communicated with the external atmosphere and is used for discharging the flue gas in the preheating coil pipe to the external atmosphere.
And a filter screen is arranged on the extraction well.
The pollutants extracted by the extraction well and the air injected by the air preheating device are all completed by negative pressure generated by a fan arranged outside the storage pool.
The treatment system also comprises an oil gas treatment facility, wherein the oil gas treatment facility is communicated with the extraction well and is used for condensing, separating and purifying the pollutants extracted by the extraction well.
The oil gas treatment facility comprises a condenser, a heat exchanger, a demister, a gas-liquid separator, an oil-water separator, an activated carbon adsorption device and a catalytic combustion device, pollutants extracted from the extraction well pass through a dust removal device under the action of negative pressure and then enter the condensing device and the gas-liquid separator for cooling and gas-liquid separation respectively, and gas discharged from the gas-liquid separator is further subjected to removal of residual organic components through a catalytic oxidation device, so that standard emission is ensured; the liquid from the gas-liquid separator firstly enters an oil-water separator, the separated oil is recovered, and the separated water is discharged after reaching the standard after adsorbing the residual oil components through the activated carbon.
The storage pool is of a square structure, and the four corners in the storage pool are provided with ventilation wells for ensuring the flow of gas in the oil sludge material to be treated.
The storage pond is brick structure, concrete structure, resistant firebrick structure and metal baffle from inside to outside in proper order, the brick structure inboard of storage pond still is equipped with the heat preservation.
The top of the storage pool is provided with a movable heat-preservation top cover, and the storage pool and the top cover form a relatively-closed heat-insulation main body.
The utility model discloses technical scheme has following beneficial effect:
A. the utility model discloses oily sludge treatment system, box processing apparatus's notion is used for reference to this system, has designed a fatlute thermal treatment storage pond structure, and built-in W type radiant tube causes the petroleum hydrocarbon pollutant to volatilize to the setting for the temperature to fatlute heating, then extracts the processing to the pollutant. The size of the storage pool and the number of the arranged radiant tubes can be adjusted according to actual needs so as to treat the oily sludge with different scales.
B. The utility model discloses oily sludge treatment system compares with traditional pile formula off-site thermal desorption technology of building, saves the consumptive material, and heating storage pool can reuse, has avoided the waste that once only covers cement heat preservation overburden outward.
C. The oily sludge treatment system has large treatment scale, controllable temperature, adjustable number of burners and short treatment and heating time; the heating storage pool is provided with a heat preservation layer, so that heat loss is reduced, and the heat preservation effect is good.
D. The utility model discloses oily sludge treatment system, the air that gets into in the air preheating device mixes with the gas again after preheating through the flue gas in the W shape radiant tube, and the structure inner wall sets up the flue gas coil pipe all around, increases the detention time of high temperature flue gas in the material heap, realizes waste heat utilization, has further practiced thrift the energy, reduces the energy consumption.
E. The utility model discloses oiliness sludge treatment system, oil gas treatment facility can realize the recycle of oils material, and the tail gas after handling passes through activated carbon adsorption and handles, avoids secondary pollution.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a process flow diagram of the oily sludge treatment system of the utility model;
FIG. 2 is a plan view of the oily sludge treatment system of the present invention;
FIG. 3 is a sectional view of the structure of the storage tank of the present invention;
FIG. 4 is a schematic view of a W-shaped radiant tube structure according to the present invention;
FIG. 5 is an enlarged view of structure I of FIG. 3;
fig. 6 is a schematic view of the structure of the preheating coil of the present invention.
Description of reference numerals:
1-a storage pool; 2-W type radiant tube; 3-an extraction well; 4-a gas inlet; 5-a burner; 6-air preheating pipe, 61-air conduit; 7-a first flue gas outlet; 8-branch pipe; 9-preheating coil, 91-flue gas inlet, 92-second flue gas outlet; 10-oil and gas treatment facilities; 20-gas permeable wells; 30-top cover.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, 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 work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the system or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 6, the utility model provides an oily sludge treatment system, which comprises a storage pool 1 for storing the oily sludge material to be treated, a W-shaped radiant tube 2 and an extraction well 3, wherein the storage pool 1 is a structure which is arranged underground and has an anti-seepage surface, and the W-shaped radiant tube 2 is arranged in the storage pool 1 and is used for heating the oily sludge material to be treated; the extraction well 3 is arranged between the two W-shaped radiant tubes 2 and is used for extracting the pollutants volatilized after heating. The utility model discloses oily sludge treatment system has designed a fatlute thermal treatment storage pond structure by referring to box processing apparatus's notion, embeds W type radiant tube, heats fatlute to setting for the temperature and causes the petroleum hydrocarbon pollutant to volatilize, then extracts the processing to the pollutant. The size of the storage pool and the number of the arranged radiant tubes can be adjusted according to actual needs so as to treat the oily sludge with different scales.
Furthermore, one end of the W-shaped radiant tube 2 is provided with a gas inlet 4 and a burner 5 for providing a heat source for the W-shaped radiant tube 2, the other end of the W-shaped radiant tube 2 is closed, an air preheating tube 6 with two closed ends is arranged on the inner side of the closed end face of the W-shaped radiant tube 2, and a first flue gas outlet 7 is formed at the side face close to the closed end face of the W-shaped radiant tube 2; an air conduit 61 is arranged in the air preheating pipe 6, two ends of the air conduit 61 are opened, one opened end of the air conduit extends to be close to the bottom of the air preheating pipe 6, and the other opened end of the air conduit extends out of the closed end surface of the W-shaped radiant tube 2; the air preheating pipe 6 is connected to the gas inlet 4 of the burner 5 via a branch pipe 8.
A preheating coil 9 is arranged in a partial or whole area of the whole inner wall of the storage pool 1 and is used for preserving the heat of the oil sludge material to be treated in the storage pool 1.
Two ends of the preheating coil 9 are respectively provided with a flue gas inlet 91 and a second flue gas outlet 92, the flue gas inlet 91 is communicated with the first flue gas outlet 7 on the W-shaped radiant tube 2, and a flue gas discharge main pipe is arranged outside the second flue gas outlet 92 and used for discharging flue gas in the preheating coil 9 to the outside atmosphere. The screen pipe part at the lower part of the extraction well 3 is provided with a separation seam and is wrapped by a metal gauze.
The pollutants extracted by the extraction well 3 and the air injected by the air preheating pipe 6 are all completed by negative pressure generated by a fan arranged outside the storage pool 1.
The treatment system also comprises an oil gas treatment facility 10 arranged outside the storage pool 1, wherein the oil gas treatment facility 10 is communicated with the extraction well 3 and is used for condensing, separating and purifying pollutants extracted from the extraction well 3.
Specifically, the oil gas treatment facility 10 comprises a condenser, a heat exchanger, a demister, a gas-liquid separator, an oil-water separator, an activated carbon adsorption device and a catalytic combustion device, pollutants extracted from the extraction well 3 pass through a dust removal device under the action of negative pressure and then enter the condensation device and the gas-liquid separator for cooling and gas-liquid separation, and gas discharged from the gas-liquid separator is further subjected to removal of residual organic components through a catalytic oxidation device to ensure that the pollutants reach the discharge standard; the liquid from the gas-liquid separator firstly enters an oil-water separator, the separated oil is recovered, and the separated water is discharged after reaching the standard after adsorbing the residual oil components by active carbon. The oil gas treatment facility can realize the recycling of oil substances, and the treated tail gas is treated by activated carbon adsorption, so that secondary pollution is avoided.
The storage pool 1 is of a square structure, and ventilating wells 20 are arranged at four corners in the storage pool 1 and used for ensuring the flow of gas in the oil sludge material to be treated.
The storage tank 1 structure is brick structure, concrete structure, resistant firebrick structure and metal baffle from inside to outside in proper order, and still is equipped with the heat preservation on the storage tank 1 inner wall.
The top of the storage pool 1 is provided with a movable heat preservation top cover 30 (provided with a movable pulley, and two sides of the storage pool are provided with special top cover rails), and the storage pool 1 and the top cover 30 form a relatively closed heat insulation main body.
The specific implementation process comprises the following steps: firstly, a storage pool is built according to system requirements, the pipelines of equipment such as heating, extracting and preheating coils are communicated and connected, then oil sludge materials to be treated are filled and stacked, and a heat-preservation cover top formed by covering the top layer of the storage pool is covered. The W-shaped radiant tube burner is started to heat, the inlet of the W-shaped radiant tube burner is used for preheating air and natural gas, the outlet flue gas is communicated with the preheating coil pipes on the peripheral inner walls of the storage pool, and the natural gas flue gas is discharged through the outlet of the preheating coil pipes and connected with a chimney (the latter is communicated with a fan to ensure that the flue gas is extracted). The heated high-temperature oil gas passes through the extraction pipe (containing the filter screen) under the negative pressure effect, then enters the condensing device and the gas-liquid separator for cooling and gas-liquid separation respectively, and the gas coming out of the gas-liquid separator is further removed with residual organic components through the catalytic oxidation device, so that the standard emission is ensured. The liquid from the gas-liquid separator firstly enters an oil-water separator, the separated oil is recovered, and the separated water is discharged after reaching the standard after adsorbing the residual oil components by active carbon. And cooling the oil sludge reaching the standard after the heating treatment, and then carrying away the oil sludge, and starting the next batch of oil sludge material treatment work.
The utility model discloses oily sludge treatment system compares with traditional pile formula off-site thermal desorption technology of building, saves the consumptive material, and heating storage pool can reuse, has avoided the waste that once only covers cement heat preservation overburden outward. The treatment system has large treatment scale, controllable temperature, adjustable number of burners and short treatment and heating time; the heating storage pool is provided with a heat preservation layer, so that heat loss is reduced, and the heat preservation effect is good.
The air entering the air preheating device is preheated by the flue gas in the W-shaped radiant tube and then mixed with the fuel gas, and the flue gas coil pipes are arranged around the inner wall of the structure, so that the detention time of the high-temperature flue gas in the material pile is prolonged, the utilization of waste heat is realized, the energy is further saved, and the energy consumption is reduced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The oily sludge treatment system is characterized by comprising a storage pool (1) for storing an oily sludge material to be treated, a heating device and an extraction well (3), wherein the storage pool (1) is a structure which is arranged underground and has an anti-seepage surface, and the heating device and the extraction well (3) are arranged in the storage pool (1) and are respectively used for heating the oily sludge material to be treated and extracting pollutants volatilized after heating.
2. The oily sludge treatment system according to claim 1, wherein the extraction well (3) is arranged between the two heating devices for extracting the pollutants volatilized after heating.
3. The oily sludge treatment system according to claim 1, wherein the heating means is a W-shaped radiant tube (2).
4. The oily sludge treatment system according to claim 3, wherein one end of the W-shaped radiant tube (2) is provided with a gas inlet (4) and a burner (5) for providing a heat source for the W-shaped radiant tube (2), the other end of the W-shaped radiant tube (2) is closed, an air preheating tube (6) with two closed ends is arranged inside the closed end surface of the W-shaped radiant tube, and a first flue gas outlet (7) is formed at the side surface close to the closed end surface of the W-shaped radiant tube (2); an air guide pipe (61) is arranged in the air preheating pipe (6), two ends of the air guide pipe (61) are open, one open end of the air guide pipe extends to be close to the bottom of the air preheating pipe (6), and the other open end of the air guide pipe extends out of the closed end face of the W-shaped radiant tube (2); the air preheating pipe (6) is communicated with the fuel gas inlet (4) of the burner (5) through a branch pipe (8).
5. The oily sludge treatment system according to claim 4, wherein a partial or whole area of the whole inner wall of the storage tank (1) is provided with a preheating coil (9) for heat preservation of the sludge material to be treated in the storage tank (1).
6. The oily sludge treatment system according to claim 5, wherein the preheating coil (9) is provided with a flue gas inlet (91) and a second flue gas outlet (92) at two ends respectively, the flue gas inlet (91) is communicated with the first flue gas outlet (7) on the W-shaped radiant tube (2), and the second flue gas outlet (92) extends to the outside of the storage tank (1) and is communicated with the outside atmosphere for discharging the flue gas in the preheating coil (9) to the outside atmosphere.
7. The oily sludge treatment system according to any one of the claims 1 to 6, wherein the treatment system further comprises an oil and gas treatment facility (10), the oil and gas treatment facility (10) is communicated with the extraction well (3) and is used for condensing, separating and purifying the pollutants extracted from the extraction well (3).
8. An oily sludge treatment system according to claim 7 wherein the storage tank (1) is of a square configuration and gas permeable wells (20) are provided in the storage tank (1) at the four corners to ensure the flow of gas within the material of oily sludge to be treated.
9. The oily sludge treatment system according to claim 8, wherein the storage tank (1) is of a brick structure, a concrete structure, a refractory brick structure and a metal partition plate in sequence from inside to outside, and an insulating layer is further arranged on the inner side of the brick structure of the storage tank (1).
10. The oily sludge treatment system according to claim 9, wherein the top of the storage tank (1) is provided with a movable heat-preserving top cover (30), and the storage tank (1) and the top cover (30) form a relatively closed heat-insulating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452191.XU CN210595734U (en) | 2019-09-03 | 2019-09-03 | Oily sludge treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452191.XU CN210595734U (en) | 2019-09-03 | 2019-09-03 | Oily sludge treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210595734U true CN210595734U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921452191.XU Active CN210595734U (en) | 2019-09-03 | 2019-09-03 | Oily sludge treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210595734U (en) |
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2019
- 2019-09-03 CN CN201921452191.XU patent/CN210595734U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200605 Address after: 100176 Room 101, floor 1, building 20, No. 2, Jingyuan North Street, Daxing Economic and Technological Development Zone, Beijing Patentee after: Meili Huaxia Ecological Environment Technology Co., Ltd Address before: 100176 Beijing Daxing District economic and Technological Development Zone BDA international enterprise Road No. 20 building Patentee before: CENTER INT GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210425 Address after: 100176 courtyard 10, East 4th Road, Yongchang, Daxing Economic and Technological Development Zone, Beijing Patentee after: CENTER INT GROUP Co.,Ltd. Address before: 100176 Room 101, floor 1, building 20, No. 2, Jingyuan North Street, Daxing Economic and Technological Development Zone, Beijing Patentee before: Meili Huaxia Ecological Environment Technology Co., Ltd |
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| TR01 | Transfer of patent right |