CN103224312A - Drilling sludge drying treatment process and special dewatering and drying system - Google Patents
Drilling sludge drying treatment process and special dewatering and drying system Download PDFInfo
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- CN103224312A CN103224312A CN2013101654319A CN201310165431A CN103224312A CN 103224312 A CN103224312 A CN 103224312A CN 2013101654319 A CN2013101654319 A CN 2013101654319A CN 201310165431 A CN201310165431 A CN 201310165431A CN 103224312 A CN103224312 A CN 103224312A
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Abstract
A drilling sludge drying treatment process and a special dewatering and drying system are disclosed in the invention. The drilling sludge drying treatment process is characterized by comprising dehydration and centrifugation treatments, superheated steam drying treatment, dry powder separating treatment, waste heat recovery treatment, oil-water separation treatment and exhaust gas purifying treatment. According to the drilling sludge drying treatment process and the special dewatering and drying system which are provided by the invention, energy can be fully utilized, and costs are saved.
Description
Technical field
The invention belongs to environmental technology field, specifically just relate to all kinds of mud, wet-milling, contain the industry that wet solid particulate carries out drying and other treatment, especially relate to drilling well sludge drying treatment process and special use and dehydrate system.
Background technology
Fast development along with national economy, the process of industrialization of China is also constantly accelerated, but because China's industrial structure belongs to the extensive style production model, paid expensive environmental cost when causing Economic development, especially atmosphere quality goes from bad to worse, haze weather not only occurs, PM2.5 is seriously not up to standard, make people's life and health be subjected to very big threat, therefore, environmental problem more and more receives popular concern, and in various environmental pollutions, of greatest concern is atmospheric pollution, because can being entered human body by human body respiration, atmosphere is difficult to take precautions against, and be the important factor that influences health of people.Present atmospheric pollutent main source mineral can be right burning, how the waste in the fossil energy combustion processes and unnecessary excess energy are recycled and paid close attention to by everybody.
At present, dehydrate the drying and other treatment industry that integral system has been widely used in all kinds of mud, wet-milling, has contained wet solid particulate, can effectively reduce the discharging to atmospheric pollutent, its range of application is also among constantly expanding.Discharging contains a lot of environmentally harmful chemical substances in the petroleum drilling fluid, if directly can cause serious environmental to pollute.Along with country is more and more stricter to the environmental requirement of the sector, the treatment process of petroleum drilling fluid is also more and more abundanter, and is more and more advanced.Drying and other treatment is the most frequently used disposal options of drilling fluid.But need consume a large amount of energy during at present traditional mummification equipment work and involve great expense.
Summary of the invention
The defective that need consume a large amount of energy during at existing petroleum drilling fluid drying and other treatment equipment work and involve great expense, drilling well sludge drying treatment process provided by the invention and special use dehydrate system, can make full use of the energy, save cost.
Technical scheme
In order to realize above-mentioned technical purpose, the present invention designs a kind of drilling well sludge drying treatment process, it is characterized in that it comprises following step:
(I) the dehydration centrifugal treating is carried out centrifugal dehydration treatment to drilling well mud and is obtained solid formation and liquid phase thing;
(II) superheated steam drying and other treatment utilizes superheated steam to carry out drying and other treatment to the solid formation in the step (I);
(III) dry powder separating treatment is carried out separating treatment to the mixture that obtains in the step (II), obtains pressed powder and smoke mixture.
(IV) smoke mixture of step (III) is carried out heat recovery and obtain oil-water mixture and waste gas.
(V) oil-water mixture that obtains in the step (IV) is carried out oily water separation and handle, waste gas carries out purifying treatment.
Superheated steam is handled and is carried out at 600 ℃ in the described step (II).
Twin-stage is adopted in heat recovery in the described step (IV) " condensation, condense to 60 ℃～80 ℃ for the first time, condense to 20 ℃～25 ℃ for the second time
Handle special use for a kind of drilling well sludge drying of realizing above-mentioned technology and dehydrate system, it is characterized in that: it comprises the superheated vapour generation systems, the hot steam generation systems is connected to the gas inlet end that dehydrates all-in-one, the solid slag outlet that dehydrates all-in-one is connected on the dry powder gathering system, the gas phase thing outlet of dry powder gathering system is connected on the residual neat recovering system, the output terminal of residual neat recovering system is connected with oil-water separation system, and the outlet port of residual neat recovering system is installed smoke eliminator.
On the pipeline of described dry powder gathering system and residual neat recovering system induced draft fan is installed.
Described superheated vapour generation systems comprises the saturation steam stove, and the saturation steam stove is connected with the superheated steam producer, the superheated steam producer with dehydrate all-in-one and be connected.
Beneficial effect
Drilling well sludge drying treatment process provided by the invention and special use dehydrate system, can make full use of the energy, save cost.
Description of drawings
Accompanying drawing 1 is a dedicated system annexation synoptic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described
Embodiment
A kind of drilling well sludge drying treatment process, it comprises following step:
At first, the dehydration centrifugal treating is carried out centrifugal dehydration treatment to drilling well mud and is obtained solid formation and liquid phase thing;
Then, the superheated steam drying and other treatment utilizes superheated steam to carry out drying and other treatment to the solid formation in the first step;
Then, the dry powder separating treatment is carried out separating treatment to the mixture that obtains in second step, obtains pressed powder and smoke mixture.
In the 4th step, the smoke mixture in the 3rd step is carried out heat recovery obtain oil-water mixture and waste gas.
At last, the oil-water mixture that obtains in the 4th step is carried out oily water separation handle, waste gas carries out purifying treatment.
Superheated steam is handled and is carried out at 600 ℃ in described second step.
Twin-stage is adopted in heat recovery in described the 4th step " condensation, condense to 60 ℃～80 ℃ for the first time, condense to 20 ℃～25 ℃ for the second time
As shown in Figure 1, a kind of drilling well sludge drying processing special use that realizes above-mentioned technology dehydrates system, it comprises the superheated vapour generation systems, the hot steam generation systems is connected to the gas inlet end that dehydrates all-in-one, the solid slag outlet that dehydrates all-in-one is connected on the dry powder gathering system, the gas phase thing outlet of dry powder gathering system is connected on the residual neat recovering system, the output terminal of residual neat recovering system is connected with oil-water separation system, and the outlet port of residual neat recovering system is installed smoke eliminator.
On the pipeline of described dry powder gathering system and residual neat recovering system induced draft fan is installed.
Described superheated vapour generation systems comprises the saturation steam stove, and the saturation steam stove is connected with the superheated steam producer, the superheated steam producer with dehydrate all-in-one and be connected.
Oily sludge is before feed system is transported to special-purpose horizontal screw centrifuge, batch after the deployed flocculation agent of system finishes throwing out with flocculation agent, together enter in the special-purpose horizontal screw centrifuge and finish solid-liquid separation, solid phase is delivered to the whizzer slag notch through spiral conveyer, is dispersed into loose solid particulate.The superheated vapour that solid particulate provides with the superheated steam generating unit in the exclusive reaction hood of special-purpose horizontal screw centrifuge carries out thermal exchange apace, finishes the mummification effect in several seconds, and takes special-purpose horizontal screw centrifuge out of by superheated vapour, finishes dehydration and mummification.Filtrate drains into Sewage treatment systems after the whizzer collecting hood is collected.Pressed powder after the mummification and profit steam together are transported to follow-up dry powder separated and collected device.Pressed powder after the mummification and profit steam together are transported to follow-up dry powder separated and collected device and finish solid and gas and separate.Pressed powder is discharged by the valve under the cyclonic separator, and is delivered to the appointed place by the delivery system of bottom.Still have after the mummification certain calorific value hot steam, send into the flue gas waste heat recovery unit, waste heat is recovered utilization, the profit condensation is reclaimed.The oily water separation retrieving arrangement that condensed profit is carried, profit recycling respectively.Temperature is reduced to 20 ℃ low-temperature flue gas and is entered smoke eliminator and handle.
The flue gas waste heat recovery unit adopts " twin-stage " condensation technology, high-temperature flue gas by cold your device of first step recovery of heat after temperature can reduce to 60 ℃～80 ℃, only reclaim the sensible heat of flue gas this moment, is used to improve the return water temperature of other heat supply; When the flue gas after the cooling passes through the secondary heat-recovery condenser, discharge a large amount of gasification latent heats, and have a large amount of water of condensation to separate out.Flue-gas temperature is reduced to normal temperature, and the heat of recovery is produced use as the thermal source 5 of heat pump set, does 55 ℃ of hot water by heat pump, uses for life, directly enters follow-up smoke eliminator after boiler smoke drops to 20 ℃～25 ℃ and does purifying treatment.Low-temperature flue gas is sent into the UV refining plant by induced draft fan, drains into atmosphere after the purifying treatment.By the flue gas waste heat recovery unit, the profit of condensation is transported to oil-water separator and carries out the oily water separation recovery.The oil of condensation is collected and is reclaimed the water reusable edible of condensation.Drilling well sludge drying treatment process provided by the invention and special use dehydrate system, can make full use of the energy, save cost.
Claims (6)
1. drilling well sludge drying treatment process is characterized in that it comprises following step:
(I) the dehydration centrifugal treating is carried out centrifugal dehydration treatment to drilling well mud and is obtained solid formation and liquid phase thing;
(II) superheated steam drying and other treatment utilizes superheated steam to carry out drying and other treatment to the solid formation in the step (I);
(III) dry powder separating treatment is carried out separating treatment to the mixture that obtains in the step (II), obtains pressed powder and smoke mixture;
(IV) smoke mixture of step (III) is carried out heat recovery and obtain oil-water mixture and waste gas;
(V) oil-water mixture that obtains in the step (IV) is carried out oily water separation and handle, waste gas carries out purifying treatment.
2. a kind of drilling well sludge drying treatment process as claimed in claim 1 is characterized in that: superheated steam is handled and is carried out at 600 ℃ in the described step (II).
3. a kind of drilling well sludge drying treatment process as claimed in claim 1 is characterized in that: twin-stage is adopted in the heat recovery in the described step (IV) " condensation, condense to 60 ℃～80 ℃ for the first time, condense to 20 ℃～25 ℃ for the second time.
4. a drilling well sludge drying is handled special use and is dehydrated system, it is characterized in that: it comprises the superheated vapour generation systems, the hot steam generation systems is connected to the gas inlet end that dehydrates all-in-one, the solid slag outlet that dehydrates all-in-one is connected on the dry powder gathering system, the gas phase thing outlet of dry powder gathering system is connected on the residual neat recovering system, the output terminal of residual neat recovering system is connected with oil-water separation system, and the outlet port of residual neat recovering system is installed smoke eliminator.
5. a kind of drilling well sludge drying as claimed in claim 4 is handled special use and is dehydrated system, it is characterized in that: on the pipeline of described dry powder gathering system and residual neat recovering system induced draft fan is installed.
6. a kind of drilling well sludge drying as claimed in claim 4 is handled special use and is dehydrated system, it is characterized in that: described superheated vapour generation systems comprises the saturation steam stove, the saturation steam stove is connected with the superheated steam producer, the superheated steam producer with dehydrate all-in-one and be connected.
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| CN2013101654319A CN103224312A (en) | 2013-05-08 | 2013-05-08 | Drilling sludge drying treatment process and special dewatering and drying system |
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| CN2013101654319A CN103224312A (en) | 2013-05-08 | 2013-05-08 | Drilling sludge drying treatment process and special dewatering and drying system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430901A (en) * | 2016-11-21 | 2017-02-22 | 武汉都市环保工程技术股份有限公司 | Moisture discharge and drying system for sludge |
| CN108622971A (en) * | 2018-05-30 | 2018-10-09 | 哈尔滨理工大学 | Utilize the MVR energy conservation and environmental protection sewage disposal systems of new energy |
| CN109095743A (en) * | 2018-08-24 | 2018-12-28 | 郑州高路亚环保科技有限公司 | The overcritical organic stripping system of one kind and its technique |
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| JP2007297527A (en) * | 2006-05-01 | 2007-11-15 | Takusen Ito | Method and apparatus for electric power generating using waste material |
| CN101148310A (en) * | 2007-09-13 | 2008-03-26 | 北京中油爱索环境工程技术有限公司 | Process for treating oil-containing sludge |
| CN101830624A (en) * | 2010-06-09 | 2010-09-15 | 山东天力干燥设备有限公司 | System and process for drying sludge blades |
| CN102503055A (en) * | 2011-11-04 | 2012-06-20 | 青海大地环境工程技术有限公司 | Treatment method and treatment apparatus of oily sludge |
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2013
- 2013-05-08 CN CN2013101654319A patent/CN103224312A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007297527A (en) * | 2006-05-01 | 2007-11-15 | Takusen Ito | Method and apparatus for electric power generating using waste material |
| CN101148310A (en) * | 2007-09-13 | 2008-03-26 | 北京中油爱索环境工程技术有限公司 | Process for treating oil-containing sludge |
| CN101830624A (en) * | 2010-06-09 | 2010-09-15 | 山东天力干燥设备有限公司 | System and process for drying sludge blades |
| CN102503055A (en) * | 2011-11-04 | 2012-06-20 | 青海大地环境工程技术有限公司 | Treatment method and treatment apparatus of oily sludge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430901A (en) * | 2016-11-21 | 2017-02-22 | 武汉都市环保工程技术股份有限公司 | Moisture discharge and drying system for sludge |
| CN108622971A (en) * | 2018-05-30 | 2018-10-09 | 哈尔滨理工大学 | Utilize the MVR energy conservation and environmental protection sewage disposal systems of new energy |
| CN108622971B (en) * | 2018-05-30 | 2021-04-16 | 哈尔滨理工大学 | MVR energy-saving environment-friendly sewage treatment system utilizing new energy |
| CN109095743A (en) * | 2018-08-24 | 2018-12-28 | 郑州高路亚环保科技有限公司 | The overcritical organic stripping system of one kind and its technique |
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