CN109553257B - Oil sludge treatment system and treatment method - Google Patents
Oil sludge treatment system and treatment method Download PDFInfo
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- CN109553257B CN109553257B CN201811568564.XA CN201811568564A CN109553257B CN 109553257 B CN109553257 B CN 109553257B CN 201811568564 A CN201811568564 A CN 201811568564A CN 109553257 B CN109553257 B CN 109553257B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an oil sludge treatment system which comprises an oil sludge loading box and a filter press, wherein oil sludge loaded in the oil sludge loading box is conveyed into the filter press through a diaphragm pump for treatment, the oil sludge loading box comprises a box body, a stirring shaft is arranged in the box body, the stirring shaft is driven by a stirring motor arranged at the top of the box body to uniformly stir the oil sludge and a treating agent in the box body, a plurality of filter plate air inlets of the filter press are connected in series through pipelines and are connected with a compressed air booster pump, and a plurality of filter plate liquid outlets of the filter press are connected in series through a water squeezing pipeline and are conveyed into an oil-water separation box. The invention provides an oil sludge treatment system, which utilizes a treating agent to carry out advanced treatment on oil sludge, and then adopts a filter press to charge compressed air to carry out squeezing treatment on the oil sludge, so that internal oil and water are extruded, and effective separation of oil and sludge is realized.
Description
Technical Field
The invention relates to the field of oil sludge treatment, in particular to an oil sludge treatment system and an oil sludge treatment method after rolling oil sewage treatment.
Background
In the field of stainless steel processing, when stainless steel is rolled, a rolling mill is matched with rolling oil for processing, after rolling, the surface of the stainless steel needs to be cleaned through water, the cleaned water contains the rolling oil, so that industrial sewage is generated, in order to perform sanding treatment on the surface of the stainless steel, the surface of the stainless steel needs to be polished through a sanding machine, and the stainless steel needs to be washed through water flow during sanding, so that the water after being washed contains frosted sludge, and the water becomes the industrial sewage.
For the industrial sewage, sludge in the sewage needs to be extracted in a filter pressing mode, however, the extracted sludge contains a large amount of rolling oil, commonly called oil sludge, which cannot be directly discharged to nature and needs to be treated by solid waste, because the oil content in the sludge is high, the sludge and the oil need to be separately treated, the treatment difficulty and the treatment cost are increased, the treatment price of a general treatment plant for the oil sludge is 2000 tons, and the water content in the general oil sludge reaches 60%, namely water is sold at the price of 2000 tons, which is a great expense for enterprises.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to make up for the defects of the prior art and provides an oil sludge treatment system, which utilizes a treating agent to carry out advanced treatment on oil sludge, and then adopts a filter press to charge compressed air to carry out squeezing treatment on the oil sludge, so that the internal oil and water are pressed out, and the effective separation of oil and sludge is realized.
The technical scheme adopted by the invention is as follows: the utility model provides a fatlute processing system, includes that fatlute loads case and pressure filter, fatlute that the loading of fatlute loading incasement was handled in sending into the pressure filter through the diaphragm pump, fatlute loading case includes the box, and its internally mounted has the (mixing) shaft, through the agitator motor drive of installing at the box top, with inside fatlute and treating agent stirring, a plurality of filter plate air inlets of pressure filter concatenate through the pipeline to connect the compressed air booster pump, and a plurality of filter plate liquid outlets of pressure filter concatenate through pressing the water pipeline, send into the oil-water separator box.
The oil-water separation box comprises a shell, the shell is provided with a top plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate, a water inlet is formed in the bottom of the left side plate, an oil outlet is formed in the upper portion of the left side plate, a water outlet is formed in the upper portion of the right side plate, a first separation portion and a second separation portion are sequentially arranged from the water inlet to the water outlet in the shell, and oil-water secondary separation is conducted.
The first separation part comprises a first separation plate and a second separation plate which are fixed between a front plate and a rear plate, the second separation part comprises a third separation plate and a fourth separation plate which are fixed between the front plate and the rear plate, the distance between the upper edges of the first separation plate and the third separation plate and the top plate is a, the distance between the lower edges of the first separation plate and the third separation plate and the bottom plate is b, the lower edges of the second separation plate and the fourth separation plate are fixed with the bottom plate, the distance between the upper edges of the second separation plate and the top plate is c, the distance between the upper edges of the fourth separation plate and the top plate is d, and d & gtc & gta.
The oil inlet is provided with an L-shaped oil baffle plate, the distance between the upper edge of the vertical part of the oil baffle plate and the top plate is e, and e is less than a.
The water outlet is provided with an L-shaped water baffle, the distance between the upper edge of the vertical part of the water baffle and the top plate is f, f is larger than d, a fifth separating plate is further arranged in front of the L-shaped water baffle and fixed between the front plate and the rear plate, the distance between the upper edge of the fifth separating plate and the top plate is g, and g is smaller than e and smaller than a.
The treating agent is a mixture of lime with a concentration of 5% and a flocculating agent.
A method for treating oil sludge is characterized by comprising the following steps:
a. putting the oil sludge subjected to sewage treatment into an oil sludge loading box, adding lime and a flocculating agent, starting a stirring motor to modulate the internal oil sludge, and pumping the modulated oil sludge into a filter press through a diaphragm pump;
b. compressed air is filled into the filter press through a compressed air booster pump, so that the filter plate is expanded to filter press the oil sludge in the filter press, oil and water in the prepared oil sludge are extruded and discharged into an oil-water separation tank through a liquid outlet, and the squeezed oil sludge is agglomerated to form a sludge cake;
c. the pressed oil and water are sent into an oil-water separation tank, and oil-water separation is carried out through the two layers of separation parts inside.
Has the advantages that: the oil sludge treatment system and the oil sludge treatment method disclosed by the invention have the following beneficial effects:
lime and a flocculating agent are adopted to modify the oil sludge, so that the modified oil sludge can be agglomerated into a mud cake after being squeezed and cannot be adhered to filter cloth;
the filter press is used for separating oil and mud in oil sludge, the filter plate is expanded by using compressed air instead of high-pressure water, the compressed air belongs to clean energy, and the cost is effectively reduced by using the filter press (compared with the high-pressure water, the water cost and the sewage treatment cost are reduced);
the self-made oil-water separation tank is adopted, the front separation mechanism and the rear separation mechanism are used for carrying out double separation operation, and the separation plates with different intervals are arranged in the shell, so that the separation cleanliness is ensured, the structure of the separation tank is simplified, and the cost is reduced;
the system can realize effective treatment of the oil sludge, and has low cost and good treatment effect.
Drawings
FIG. 1 is a system connection diagram of the present invention;
FIG. 2 is a side sectional view of the oil-water separation tank of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are used only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the oil sludge treatment system disclosed by the present invention comprises an oil sludge loading box 1, a filter press 2, a compressed air booster pump 3 and an oil-water separation box 4, wherein oil sludge loaded in the oil sludge loading box is sent to the filter press through a diaphragm pump 5 for treatment, the compressed air booster pump is connected with an air inlet of the filter press through a pipeline 6, compressed air is sent into the filter press to control the expansion of internal filter plates, and liquid outlets of the filter plates in the filter press are connected in series through a water squeezing pipeline 7 and are connected with the oil-water separation box.
Specifically, the oil sludge loading box comprises a box body 8, wherein a stirring shaft is arranged in the box body, and the stirring shaft is driven by a stirring motor 9 arranged at the top of the box body to uniformly stir the oil sludge in the box body and a treating agent, wherein the treating agent is a mixture of lime with the concentration of 5% and a flocculating agent.
As shown in fig. 2, the oil-water separation tank includes a housing 10 having a top plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate, wherein the left side plate has a water inlet 11 at the bottom, an oil outlet 12 at the top, and a water outlet 13 at the top, and a first separation part and a second separation part are sequentially disposed from the water inlet to the water outlet in the housing for oil-water two-stage separation.
The first separation part comprises a first separation plate 14 and a second separation plate 15 which are fixed between a front plate and a rear plate, the second separation part comprises a third separation plate 16 and a fourth separation plate 17 which are fixed between the front plate and the rear plate, an L-shaped water baffle plate 18 is arranged at a water outlet, a fifth separation plate 19 is arranged in front of the water outlet, an L-shaped oil baffle plate 20 is arranged at the oil outlet, the distance between the upper edges of the first separation plate and the third separation plate and the top plate is a, the distance between the lower edge and the bottom plate is b, the lower edges of the second separation plate and the fourth separation plate are fixed with the bottom plate, the distance between the upper edge of the second separation plate and the top plate is c, the distance between the upper edge of the fourth separation plate and the top plate is d, the distance between the upper edge of the vertical part of the L-shaped oil baffle plate and the top plate is e, the distance between the upper edge of the L-shaped water baffle plate and the top plate is f, and the distance between the upper edge of the fifth separation plate is g, f is larger than d, larger than c, larger than a, larger than e, and g, the distance between the first separating plate and the second separating plate, the distance between the third separating plate and the fourth separating plate are h, the distance between the fifth separating plate and the L-shaped water baffle is i, and i is larger than h.
Filtered oil and water enter the oil-water separation tank through the water inlet, and because the bottom of the first separation plate is provided with the distance b, sewage gradually enters an area between the first separation plate and the second separation plate, because dirty oil always covers the surface of the sewage, and c is larger than a, the sewage enters the next separation area, most of floating oil is blocked between the left side plate and the first separation plate, and part of floating oil entering the next separation area is blocked between the first separation plate and the third separation plate during the next separation.
A method for treating oil sludge is characterized by comprising the following steps:
a. putting the oil sludge subjected to sewage treatment into an oil sludge loading box, adding lime and a flocculating agent, starting a stirring motor to modulate the internal oil sludge, and pumping the modulated oil sludge into a filter press through a diaphragm pump;
b. compressed air is filled into the filter press through a compressed air booster pump, so that the filter plate is expanded to filter press the oil sludge in the filter press, oil and water in the prepared oil sludge are extruded and discharged into an oil-water separation tank through a liquid outlet, and the squeezed oil sludge is agglomerated to form a sludge cake;
c. the pressed oil and water are sent into an oil-water separation tank, and oil-water separation is carried out through the two layers of separation parts inside.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (3)
1. An oil sludge treatment system, which is characterized in that: the filter press comprises an oil sludge loading box and a filter press, wherein oil sludge loaded in the oil sludge loading box is conveyed into the filter press through a diaphragm pump for treatment, the oil sludge loading box comprises a box body, a stirring shaft is arranged in the box body, the stirring shaft is driven by a stirring motor arranged at the top of the box body to uniformly stir the oil sludge and a treating agent in the box body, a plurality of filter plate air inlets of the filter press are connected in series through pipelines and are connected with a compressed air booster pump, and a plurality of filter plate liquid outlets of the filter press are connected in series through a water squeezing pipeline and are conveyed into an oil-water separation box;
the oil-water separation tank comprises a shell, the shell is provided with a top plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate, the bottom of the left side plate is provided with a water inlet, the upper part of the left side plate is provided with an oil outlet, the upper part of the right side plate is provided with a water outlet, and a first separation part and a second separation part are sequentially arranged in the shell from the water inlet to the water outlet for oil-water secondary separation;
the first separation part comprises a first separation plate and a second separation plate which are fixed between the front plate and the rear plate, the second separation part comprises a third separation plate and a fourth separation plate which are fixed between the front plate and the rear plate, the distance between the upper edges of the first separation plate and the third separation plate and the top plate is a, the distance between the lower edges of the first separation plate and the third separation plate and the bottom plate is b, the lower edges of the second separation plate and the fourth separation plate are fixed with the bottom plate, the distance between the upper edge of the second separation plate and the top plate is c, the distance between the upper edge of the fourth separation plate and the top plate is d, and d & gt c & gt a;
an L-shaped oil baffle plate is arranged at the oil outlet, the distance between the upper edge of the vertical part of the oil baffle plate and the top plate is e, and e is less than a;
the water outlet is provided with an L-shaped water baffle, the distance between the upper edge of the vertical part of the water baffle and the top plate is f, f is larger than d, a fifth separating plate is further arranged in front of the L-shaped water baffle and fixed between the front plate and the rear plate, the distance between the upper edge of the fifth separating plate and the top plate is g, and g is smaller than e and smaller than a.
2. The sludge treatment system of claim 1 wherein: the treating agent is a mixture of lime with a concentration of 5% and a flocculating agent.
3. A method of treating sludge based on the treatment system of claim 1, comprising the steps of:
a. putting the oil sludge subjected to sewage treatment into an oil sludge loading box, adding lime and a flocculating agent, starting a stirring motor to modulate the internal oil sludge, and pumping the modulated oil sludge into a filter press through a diaphragm pump;
b. compressed air is filled into the filter press through a compressed air booster pump, so that the filter plate is expanded to filter press the oil sludge in the filter press, oil and water in the prepared oil sludge are extruded and discharged into an oil-water separation tank through a liquid outlet, and the squeezed oil sludge is agglomerated to form a sludge cake;
c. the pressed oil and water are sent into an oil-water separation tank, and oil-water separation is carried out through the two layers of separation parts inside.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568564.XA CN109553257B (en) | 2018-12-21 | 2018-12-21 | Oil sludge treatment system and treatment method |
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| CN201811568564.XA CN109553257B (en) | 2018-12-21 | 2018-12-21 | Oil sludge treatment system and treatment method |
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| CN109553257A CN109553257A (en) | 2019-04-02 |
| CN109553257B true CN109553257B (en) | 2021-07-20 |
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| CN115970386A (en) * | 2023-03-17 | 2023-04-18 | 山东博科环保设备有限公司 | Filtering and squeezing system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4834889A (en) * | 1982-01-28 | 1989-05-30 | Oil Recovery Systems Inc. | Oil and water filter and process for dewatering oil sludge |
| CN2505474Y (en) * | 2001-10-19 | 2002-08-14 | 刘林斌 | Oil-water separator |
| CN103992020A (en) * | 2014-06-11 | 2014-08-20 | 无锡市通用机械厂有限公司 | Sludge dewatering treatment system |
| KR101834170B1 (en) * | 2016-06-02 | 2018-04-13 | 주식회사 지이테크 | Method for refining waste oil with consecutively membrane filtration process |
| CN106039772B (en) * | 2016-07-25 | 2018-09-18 | 江苏艳蓝环保科技有限公司 | A kind of water-oil separating water tank |
| CN107311429A (en) * | 2017-06-07 | 2017-11-03 | 江门市东江环保技术有限公司 | A kind of handling process of greasy filth |
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