CN101391843B - Sewage disposal method and apparatus after asphalt flue gas wet cleaning - Google Patents
Sewage disposal method and apparatus after asphalt flue gas wet cleaning Download PDFInfo
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- CN101391843B CN101391843B CN2007102017844A CN200710201784A CN101391843B CN 101391843 B CN101391843 B CN 101391843B CN 2007102017844 A CN2007102017844 A CN 2007102017844A CN 200710201784 A CN200710201784 A CN 200710201784A CN 101391843 B CN101391843 B CN 101391843B
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Abstract
The invention discloses a treatment method and device for sewage that is caused by purifying asphalt fume by a wet process. The structure of the device is as follows: a washer, a blower, a chimney, a reflux pipe, a fume inlet pipe and a water spray pipe are connected, the water spray pipe is connected with a circulation pump which is connected with a sewage processing tank, the clean water area of the sewage processing tank is connected with a motorized valve, and the motorized valve is connected with a water supply pipe; the reflux pipe is connected with the oil removing area of the sewage processing tank, the oil removing area is connected with a sewage discharging pump, the outlet pipe of the sewage discharging pump is connected with a sewage processing station; a water level meter is arranged in the sewage processing tank. The treatment method is: the motorized valve is started to fully fill the clean water area of the sewage processing tank, the water level higher than a low water level is determined by the water level meter, then the circulation pump is started to sent the water to the washer for fume purification, the generated sewage returns to the sewage area of the sewage processing tank through the reflux pipe, the asphalt suspending on the water surface and the dust settled at the bottom of the tank are filtered by two baffles in the sewage processing tank, and the water after purification returns to the clean water area for continous circular use.
Description
Technical field
The present invention relates to treatment process and device that a kind of bitumen flue gas wet method purifies back sewage.
Background technology
The plain technology charcoal of charcoal piece is produced the prerequisite as Aluminum Electrolysis Production, in the aluminium industry production, play an important role, producing the used main raw material(s) of charcoal piece (electrode) is pitch and various pulverulent material, owing to stirring must be mixed with pulverulent material in pitch heating back, in this process, can produce the bitumen flue gas that contains dust in a large number.
At present domestic main methods is black method purification techniques and wet purification technology.
Black method purification techniques is dry method absorption, and this technology is to make sorbent material with raw materials for production fine particle powdered carbon, quantitatively is added in the glance coal main by metering outfit, it is fully mixed with glance coal contact, because the powdered carbon specific surface area is big, reaches 8-10m
2/ g has good adsorption, can fully absorb glance coal and tar, reaches the effect of flue.Bitumen flue gas after reinforced at first enters the pre-duster primary dust removing to be separated, and enters sack cleaner again and filters, and collected powdered carbon returns in the production technique again.Black method purification system maximum defective in practice is the plain dust of a part of charcoal and be attached on the smoke pipe inwall after bitumen flue gas mixes, and causes the line clogging can't works better after the long-time running.Domestic most charcoal ink factory all adopts black method to purify, because operating performance is undesirable, the part system is out of service.
The wet purification technology adopts the mode of spray to come the washing, purifying flue gas.This method all has decontamination effect improving to bitumen flue gas and dust, adds certain alkali lye and also can purify SO in water
2Deng sour gas.The wet purification technology is a kind of good method to not only bituminous but also the flue gas that contains dust, but can cause the secondary pollution of water, deliver to sewage works (being the primary treatment system) if directly will wash the sewage of back generation, then strengthened sewage load, wasted water resources.
Summary of the invention
The technical problem to be solved in the present invention is: the treatment process and the device that provide a kind of bitumen flue gas wet method to purify back sewage, and to overcome secondary pollution that prior art exists and the deficiency that increases sewage load, waste water resource.
The present invention is by the following technical solutions: the sewage after the wet purification, and by the sewage disposal case, recycle pump, residual sea water pump, the interconnected lock mutually and the control of motorized valve and water level gauge repeatedly recycle washing water in purification system.
The present invention is achieved in that and opens motorized valve (1) with clean water area (2-3) water filling in the sewage disposal case (2), determine that by water level gauge (3) this zone water level has been higher than low-water level, ON cycle pump this moment (4) is delivered to washer (7) with water and is used for gas cleaning, and purified gas is discharged by blower fan and chimney; The sewage that produces returns oil-removing area (2-1) and settling region (2-2) of sewage disposal case (2) by return line (5), by two dividing plates in the sewage disposal case (2) dust that is suspended in the pitch on the water surface and is deposited in water tank bottom is filtered successively, and the water after will purifying returns clean water area (2-3) and continues to recycle; Purification system is normally moved the clean water area that water level gauge (3) after for some time detects sewage disposal case (2) and has been reached high-water, start residual sea water pump (6) this moment, closes residual sea water pump (6) after oil-removing area (2-1) and the interior sewage in settling region (2-2) and throw out are emptied to low-water level; Said process constantly circulation carries out.
Motorized valve (1) is held open state always in whole flue gas washing process, by constantly clean water area (2-3) water filling in sewage disposal case (2), has diluted the used spray water of washing flue gas, has guaranteed decontamination effect improving.The fresh water consumption that is replenished by motorized valve (1) is far below the required water spray of washing flue gas simultaneously, and washing water have been finished in purification system repeatedly and circulated, and have saved water.
The present invention constitutes: washer (7) is connected with blower fan and chimney, return line (5), smoke inlet pipe (9) and water jet standpipe (8), water jet standpipe (8) is connected with recycle pump (4), it is characterized in that: recycle pump (4) is connected with sewage disposal case (2), the clean water area (2-3) of sewage disposal case (2) is connected with motorized valve (1), and motorized valve (1) is connected with water-supply pipe (10); Return line (5) is connected with the oil-removing area (2-1) of sewage disposal case (2), and oil-removing area (2-1) is connected with residual sea water pump (6), and residual sea water pump (6) outlet pipe (11) is connected with sewage works; Water level gauge (3) is arranged in sewage disposal case (2).
Sewage disposal case (2) is made up of oil-removing area (2-1), settling region (2-2), clean water area (2-3), in oil-removing area (2-1) sewage inlet (2-4) is arranged, and in clean water area (2-3) circulating water outlet (2-5) is arranged.
The present invention compared with prior art has following innovation and advantage:
1. owing to adopted the simple and easy on the spot processing of sewage, repeatedly the round-robin techniques save water, reduced the investment of sewage works, reduced running cost.
2. sewage that purification system produces has been guaranteed the gas cleaning effect by simple and easy purification on the spot and add the standard that fresh water-reducible method can reach bath water fully.
3. the design by novelty, reasonable disposition has only just been finished control to total system by the output signal of a water level gauge, has reduced the maintenance and inspection workload, guarantees system stable operation.
4. the sewage disposal case makes it possess the basic function of removing pitch and precipitation dust by particular design.
Description of drawings
Fig. 1 is an equipment connection diagram of the present invention.
Fig. 2 is the A Abandon sectional view of sewage disposal case among Fig. 1.
Fig. 3 is a workflow diagram of the present invention.
Embodiment:
Embodiments of the invention: equipment formation of the present invention mainly contains: motorized valve 1, sewage disposal case 2, water level gauge 3, recycle pump 4, residual sea water pump, washer 7 etc., as shown in Figure 1 and Figure 2, connect as follows: washer 7 is connected with blower fan and chimney, return line 5, smoke inlet pipe 9 and water jet standpipe 8, water jet standpipe 8 is connected with recycle pump 4, recycle pump 4 is connected with sewage disposal case 2, the clean water area 2-3 of sewage disposal case 2 is connected with motorized valve 1, and motorized valve 1 is connected with water-supply pipe 10; Return line 5 is connected with the oil-removing area 2-1 of sewage disposal case 2, and oil-removing area 2-1 is connected with residual sea water pump 6, and the outlet pipe 11 of residual sea water pump 6 is connected with sewage works; Water level gauge 3 is set in sewage disposal case 2.Wherein, two dividing plates are set in sewage disposal case 2, form oil-removing area 2-1, settling region 2-2, clean water area 2-3, and sewage inlet 2-4 is set at oil-removing area 2-1, at clean water area 2-3 circulating water outlet 2-5 is arranged, sewage inlet 2-4 is connected with residual sea water pump 6, circulating water outlet 2-5 is connected with recycle pump 4.After each equipment room of system for wet purification finished by pipe connection, all water power were connected, and system for wet purification can formally come into operation.
During work, open motorized valve 1 with water fillings in the sewage disposal case 2, determine that by water level gauge 3 these zone water levels have been higher than low-water level, ON cycle pump 4 was delivered to washer 7 with water and was used for gas cleaning this moment, and purified gas is discharged by blower fan and chimney; The sewage that produces returns the oil-removing area 2-1 and the settling region 2-2 of sewage disposal case 2 by return line 5, by two dividing plates in the sewage disposal case 2 dust that is suspended in the pitch on the water surface and is deposited in water tank bottom is filtered successively, and the water after will purifying returns clean water area 2-3 and continues to recycle; Purification system is normally moved the clean water area that water level gauge 3 after for some time detects sewage disposal case 2 and has been reached high-water, and start residual sea water pump 6 this moment, and sewage and throw out in oil-removing area 2-1 and the settling region 2-2 are closed residual sea water pump 6 after emptying to low-water level; Said process constantly circulation carries out.
The wet purification system need stablize lasting water supply and remove to wash flue gas, removes pollutents such as pitch in the flue gas and dust.By constantly replenishing fresh water, guarantee decontamination effect improving to reduce the content of bath water medium pitch and dust.Because the adding of fresh water is constantly arranged, and a part of sewage will regularly drain into the Sewage treatment systems of factory, whole process is finished automatically.The sewage disposal case has basic pitch and the precipitation function removed, to realize the target of purification on the spot.
Residual sea water pump determines whether to open and close according to the high and low water level signal of sewage disposal case clean water area water level gauge, discharges unnecessary sewage in the entire sewage treatment system, and whole process is finished automatically, need not artificial participation, does not influence the normal operation of total system.
The sewage disposal case possesses the basic function of removing pitch and precipitation dust.
Claims (2)
1. the sewage water treatment method after a bitumen flue gas wet method purifies, it is characterized in that: open motorized valve (1) the interior water filling of sewage disposal case (2), clean water area (2-3) water level of determining sewage disposal case (2) by water level gauge (3) has been higher than low-water level, ON cycle pump this moment (4) is delivered to washer (7) with water and is used for gas cleaning, and purified gas is discharged by blower fan and chimney; The sewage that produces returns oil-removing area (2-1) and settling region (2-2) of sewage disposal case (2) by return line (5), by the dividing plate in the sewage disposal case (2) dust that is suspended in the pitch on the water surface and is deposited in water tank bottom is filtered successively, and the water after will purifying returns clean water area (2-3) and continues to recycle; Purification system is normally moved the clean water area that water level gauge (3) after for some time detects sewage disposal case (2) and has been reached high-water, start residual sea water pump (6) this moment, closes residual sea water pump (6) after oil-removing area (2-1) and the interior sewage in settling region (2-2) and throw out are emptied to low-water level; Said process constantly circulation carries out.
2. use the device of sewage water treatment method according to claim 1 for one kind, it comprises washer (7), washer (7) is connected with blower fan and chimney, return line (5), smoke inlet pipe (9) and water jet standpipe (8), water jet standpipe (8) is connected with recycle pump (4), it is characterized in that: recycle pump (4) is connected with sewage disposal case (2), the clean water area (2-3) of sewage disposal case (2) is connected with motorized valve (1), and motorized valve (1) is connected with water-supply pipe (10); Return line (5) is connected with the oil-removing area (2-1) of sewage disposal case (2), and oil-removing area (2-1) is connected with residual sea water pump (6), and residual sea water pump (6) outlet pipe (11) is connected with sewage works; Water level gauge (3) is arranged in sewage disposal case (2).
3. according to the device of the described sewage water treatment method of claim 2, it is characterized in that: sewage disposal case (2) is made up of oil-removing area (2-1), settling region (2-2), clean water area (2-3), in oil-removing area (2-1) sewage inlet (2-4) is arranged, circulating water outlet (2-5) is arranged in clean water area (2-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102017844A CN101391843B (en) | 2007-09-20 | 2007-09-20 | Sewage disposal method and apparatus after asphalt flue gas wet cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102017844A CN101391843B (en) | 2007-09-20 | 2007-09-20 | Sewage disposal method and apparatus after asphalt flue gas wet cleaning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101391843A CN101391843A (en) | 2009-03-25 |
| CN101391843B true CN101391843B (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007102017844A Expired - Fee Related CN101391843B (en) | 2007-09-20 | 2007-09-20 | Sewage disposal method and apparatus after asphalt flue gas wet cleaning |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056031B (en) * | 2012-12-31 | 2016-08-24 | 福建龙净环保股份有限公司 | A kind of grey water circulation processing system of wet electrical dust precipitator |
| CN105536393B (en) * | 2015-09-23 | 2018-07-27 | 盛旺汽车零部件（昆山）有限公司 | A kind of wet type dust-precipitating system |
| CN105999962B (en) * | 2016-07-12 | 2018-12-14 | 浙江森井科技股份有限公司 | A kind of asphalt smoke gas purifying processing equipment |
| CN108526102A (en) * | 2018-06-11 | 2018-09-14 | 路沃特（张家港）动力再制造科技有限公司 | Engine disassembles cleaning platform |
| CN112474526A (en) * | 2020-11-28 | 2021-03-12 | 山东汽车弹簧厂淄博有限公司 | Plate spring tempering circulating cleaning system |
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- 2007-09-20 CN CN2007102017844A patent/CN101391843B/en not_active Expired - Fee Related
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| CN101391843A (en) | 2009-03-25 |
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