CN206064125U - A kind of coke cooling water tank exhaust treatment system - Google Patents
A kind of coke cooling water tank exhaust treatment system Download PDFInfo
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- CN206064125U CN206064125U CN201621020831.6U CN201621020831U CN206064125U CN 206064125 U CN206064125 U CN 206064125U CN 201621020831 U CN201621020831 U CN 201621020831U CN 206064125 U CN206064125 U CN 206064125U
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- cooling water
- tower
- water tank
- treatment system
- coke cooling
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- Gas Separation By Absorption (AREA)
Abstract
This utility model is related to a kind of coke cooling water tank exhaust treatment system, including the gas sampling unit, waste gas air inducing unit, multistage absorption unit and the demisting unit that are sequentially connected；Waste gas air inducing unit includes ejector, spray tower tower body, circulation fluid system, and spray tower tower body is provided with inlet and outlet；Multistage absorption unit includes multistage absorption tower, and multistage absorption tower includes multistage absorption tower tower body, nozzle, filler and catcher；Absorption tower bottom is water wash zone, and water wash zone is provided with water washing cycles pump, and water washing cycles pump is sprayed with nozzle downwards after circulation fluid is evacuated to top；Absorption tower top is alkali cleaning area, and alkali cleaning area is provided with alkali cleaning circulating pump, and alkali cleaning circulating pump is sprayed with nozzle downwards after circulation fluid is evacuated to top.This utility model does not produce secondary pollution, and investment operating cost is low, can long-period stable operation, device is intensive, and in absorption process, thrust is big, and absorption efficiency is high, and absorption efficiency can reach 99.9%.
Description
Technical field
This utility model is related to chemical field, more particularly to a kind of coke cooling water tank exhaust treatment system.
Background technology
At present, delay coking device coke cooling water treatment technology route mainly has two ways：A kind of is old-fashioned outdoor spacious
Open type coke cooling water pond, old-fashioned coke cooling water pond, harmful poisonous foul gass are directly discharged into air；Another adopts coke cooling water
Tank form, the main method of operation are as follows：One kind is opened type coke cooling water tank, although there is no safety problem in this open type,
M alodorous volatile gas is directly discharged into air, and environmental pollution is serious.Another is semi-enclosed coke cooling water tank, logical by tank deck
Steam is protected, and tank deck sets up water sealed tank, and isolation imflammable gas is contacted with air mixing, but simultaneously because steam presence, in tank
Foul gass volatilization aggravation, causes foul gass intermittent discharge to air.Last one kind is totally enclosed type coke cooling water tank, at the top of which
By nitrogen or steam protection, safe water sealed cans are set up, tank deck foul gass Jing ammoniacal liquors absorb, and air is entered after alkali liquor absorption.
Foul gass mainly include Qing ﹑ An ﹑ Jia Liu Chun ﹑ ethyl mercaptans etc..Handling process main for foul gass at present
There are Ran Shao Fa ﹑ Xi Fu Fa ﹑ Sheng Wu Fa ﹑ absorption processes etc..Combustion method（RTO/RCO）, this method great advantage clearance is high, can remove
Waste gas more than species, which has the disadvantage that manipulation is complicated, and operating cost is high, has high temperature and the uncontrollable danger of system.Absorption method, generally
Using activated carbon（GAC/ACF）, this method great advantage system investments is few, it is adaptable to certain pure gas, the relatively low occasion of concentration.But
Its shortcoming is that clearance is low, and active carbon layer is penetrated readily through, and regeneration or replacement cycle are unstable, and operating cost is high, simultaneously because
Petrochemical industry VOC Multiple components are simultaneously deposited, and adsorbent absorptive capacity is reduced rapidly, and the life-span drastically declines, and cause operating cost to increase severely.
Bioanalysises, this method advantage are that investment is moderate, are disposably completed to Pollutant Treatment.Have the disadvantage that floor space is big, operating parameter is difficult
To control, impact resistance is poor, is not suitable for various organic species complexity such as petrochemical industry/chemical industry, and the higher occasion of concentration.Acid
Alkali absorption method, the advantage of this kind of method is that cost of investment is relatively low, floor space, high degree of automation, and manipulation is easy, such method
Have the disadvantage to compare other method operating costs height.This kind of method is used for the process of the inorganic waste gases such as hydrogen sulfide, ammonia.
Utility model content
The technical problems to be solved in the utility model is a kind of good coke cooling water tank exhaust treatment system of efficiency of design, is solved
Existing technical problem.
To solve above-mentioned technical problem, coke cooling water tank exhaust treatment system of the present utility model includes the waste gas being sequentially connected
Collector unit, waste gas air inducing unit, multistage absorption unit and demisting unit；The waste gas air inducing unit includes ejector, injection
Tower tower body, circulation fluid system, the spray tower tower body are provided with inlet and outlet；Hydraulic ejector is the current using certain pressure
Sprayed by the symmetrical uniform nozzle into certain gradient, be aggregated in a focus, surrounding higher due to spraying waterpower speed
Forming negative pressure makes vacuum is produced in device room, so as to introduce exhaust gas into exhaust treatment system；The multistage absorption unit includes many
Level absorption tower, the multistage absorption tower include multistage absorption tower tower body, nozzle, filler and catcher；The absorption tower bottom is
Water wash zone, water wash zone are provided with water washing cycles pump, and the water washing cycles pump is sprayed with nozzle downwards after circulation fluid is evacuated to top, is given up
Gas carries out preliminary absorption in the stage, and can reduce EGT, is that follow-up alkali liquor absorption creates favorable conditions, with water
The continuous operation washed, absorbs the concentration of hydrogen sulfide for getting off and more comes high in solution, the acid solution of formation causes pH value more and more lower, when molten
After liquid saturation, pH value is no longer reduced, and is to ensure assimilation effect, vent valves is automatically opened up when pH value is reduced to 5-5.5, by acid
Liquid is emitted into coke cooling water feedwater tank, and discharge acid solution amount is controlled by magnetic double level gauge；Absorption tower top be alkali cleaning area, alkali cleaning area
Alkali cleaning circulating pump is provided with, the alkali cleaning circulating pump is sprayed with nozzle downwards after circulation fluid is evacuated to top.Alkali liquor long-time absorbs
In waste gas after hydrogen sulfide, alkalinity is reduced, and assimilation effect is reduced to when can not meet emission request and turns on vent valves, is discharged
To salkali waste slag disposal system, the drain time can determine alkali liquor according to trial operation effect.
Further, described filler is the one kind in Raschig ring, Pall ring, cascade ring and ball-shaped filling material.
Further, the nozzle is conic nozzle, and circulation fluid can mix more uniform with waste gas by touching mouth, it is ensured that
Assimilation effect.
Further, the gas sampling unit includes air chamber, and the air chamber is connected with multiple coke cooling water tanks by pipeline,
Pressure transducer and variable frequency pump are provided with the air chamber.When pressure transducer pressure is less than setting value, turning for variable frequency pump is turned down
Speed, reduces rate of air sucked in required；When pressure transducer pressure is more than setting value, the rotating speed of variable frequency pump is tuned up, increase rate of air sucked in required, smoothly will
Waste gas causes cleaning system.
Further, the air chamber is communicated with the permeability cell of air, and the permeability cell is provided with regulating valve, control valve opening
Adjusted according to pressure transducer, prevent the excessive negative pressure of coke cooling water tank and aerofluxuss not smooth.
Further, the demisting unit includes static demister and mesh mist eliminator.Waste gas after scrubbing tower, waste gas
In containing water smoke in large quantities, if water smoke is not removed, hydrogen sulfide dissolved in water smoke etc. will be discharged again, cause pollutant purification
Efficiency is greatly reduced.
Further, the ejector is stainless steel structure, and small volume, efficiency height, power consumption are less than vacuum pump system.
Further, the spray tower tower body is closed stainless steel structure, and circulation fluid is using industrial fresh water.
Further, the circulation fluid of the water wash zone is industrial fresh water, and the circulation fluid in the alkali cleaning area is sodium hydroxide
Solution.
Waste gas carries out bleed by the negative pressure that water-jet tower is formed, then waste gas in the scrubbing tower with absorb in absorption tower
Liquid carries out reverse contact and removes hydrogen sulfide in removing exhaust gas.It is divided into washing to absorb with alkali cleaning two-stage in absorption tower, waste gas is through scrubbing tower
After washing, in waste gas, contain a large amount of water smokes, if this water smoke is not removed, hydrogen sulfide dissolved in water smoke etc. will be discharged again,
Pollutant-degrading gene is caused greatly to reduce.Absorption tower exit design has multi-stage static demister and mesh mist eliminator, energy
Most water smokes in waste gas are removed, it is ensured that exhaust purification efficiency.
The beneficial effects of the utility model：Compared with prior art, this utility model does not produce secondary pollution, investment operation
Low cost, being capable of long-period stable operation.Meanwhile, the waste gas air inducing unit of coke cooling water tank exhaust treatment system of the present utility model
Negative pressure is formed by hydraulic ejector, vacuum pump system is compared, comparison is high again for small volume, lightweight, efficiency；Multistage absorption list
Unit, is combined with washing technique using alkali cleaning, and device is intensive, and in absorption process, thrust is big, and absorption efficiency is high, and absorption efficiency can
Reach 99.9%.
Description of the drawings
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is further elucidated.
Fig. 1 is the system block diagram of coke cooling water tank exhaust treatment system of the present utility model；
Fig. 2 is the schematic diagram of coke cooling water tank exhaust treatment system of the present utility model.
Specific embodiment
Embodiment 1
With reference to Fig. 1 and Fig. 2, coke cooling water tank exhaust treatment system of the present utility model, including the gas sampling being sequentially connected
Unit, waste gas air inducing unit, multistage absorption unit and demisting unit；The waste gas air inducing unit includes ejector, spray tower tower
Body 1, circulation fluid system, the spray tower tower body 1 are provided with inlet and outlet；Hydraulic ejector is led to using the current of certain pressure
Cross the symmetrical uniform nozzle into certain gradient to spray, be aggregated in a focus, due to higher, surrounding shape of spraying waterpower speed
Make to produce vacuum in device room into negative pressure, so as to introduce exhaust gas into exhaust treatment system；The multistage absorption unit includes multistage
Absorption tower 2, the multistage absorption tower 2 include multistage absorption tower tower body, nozzle, filler and catcher；The absorption tower bottom is
Water wash zone, water wash zone are provided with water washing cycles pump 31, and the water washing cycles pump 31 is sprayed with nozzle downwards after circulation fluid is evacuated to top
Drench, waste gas carries out preliminary absorption in the stage, and can reduce EGT, is that follow-up alkali liquor absorption creates favorable conditions,
With the continuous operation of washing, the concentration of hydrogen sulfide for getting off is absorbed in solution and more comes high, the acid solution of formation causes pH value increasingly
Low, after solution saturation, pH value is no longer reduced, and is to ensure assimilation effect, drain valve is automatically opened up when pH value is reduced to 5-5.5
Acid solution is emitted into coke cooling water feedwater tank by door, and discharge acid solution amount is controlled by magnetic double level gauge；Absorption tower top is alkali cleaning
Area, alkali cleaning area are provided with alkali cleaning circulating pump 32, and the alkali cleaning circulating pump 32 is sprayed with nozzle downwards after circulation fluid is evacuated to top.Alkali
In liquid long-time absorption waste gas after hydrogen sulfide, alkalinity is reduced, and assimilation effect is reduced to when can not meet emission request and turns on
Vent valves, to salkali waste slag disposal system, the drain time can determine discharge alkali liquor according to trial operation effect.
Further, described filler is the one kind in Raschig ring, Pall ring, cascade ring and ball-shaped filling material.
Further, the nozzle is conic nozzle, and circulation fluid can mix more uniform with waste gas by touching mouth, it is ensured that
Assimilation effect.
Further, the gas sampling unit includes air chamber, and the air chamber is connected with multiple coke cooling water tanks by pipeline,
Pressure transducer and variable frequency pump are provided with the air chamber.When pressure transducer pressure is less than setting value, turning for variable frequency pump is turned down
Speed, reduces rate of air sucked in required；When pressure transducer pressure is more than setting value, the rotating speed of variable frequency pump is tuned up, increase rate of air sucked in required, smoothly will
Waste gas causes cleaning system.
Further, the air chamber is communicated with the permeability cell of air, and the permeability cell is provided with regulating valve, control valve opening
Adjusted according to pressure transducer, prevent the excessive negative pressure of coke cooling water tank and aerofluxuss not smooth.
Further, the demisting unit includes static demister 41 and mesh mist eliminator 42.Waste gas after scrubbing tower,
Containing water smoke in large quantities in waste gas, if water smoke is not removed, hydrogen sulfide dissolved in water smoke etc. will be discharged again, cause pollutant
Purification efficiency is greatly reduced.
Further, the ejector is stainless steel structure, and small volume, efficiency height, power consumption are less than vacuum pump system.
Further, the spray tower tower body 1 is closed stainless steel structure, and circulation fluid is using industrial fresh water.
Further, the circulation fluid of the water wash zone is industrial fresh water, and the circulation fluid in the alkali cleaning area is sodium hydroxide
Solution.
Waste gas carries out bleed by the negative pressure that water-jet tower is formed, then waste gas in the scrubbing tower with absorb in absorption tower
Liquid carries out reverse contact and removes hydrogen sulfide in removing exhaust gas.It is divided into washing to absorb with alkali cleaning two-stage in absorption tower, waste gas is through scrubbing tower
After washing, in waste gas, contain a large amount of water smokes, if this water smoke is not removed, hydrogen sulfide dissolved in water smoke etc. will be discharged again,
Pollutant-degrading gene is caused greatly to reduce.Absorption tower exit design has multi-stage static demister and mesh mist eliminator 42,
Most water smokes in waste gas can be removed, it is ensured that exhaust purification efficiency.
The coke cooling water tank exhaust treatment system of the present embodiment does not produce secondary pollution, and investment operating cost is low, can grow week
Phase stable operation.Meanwhile, the waste gas air inducing unit of coke cooling water tank exhaust treatment system of the present utility model passes through hydraulic ejector
Negative pressure is formed, vacuum pump system is compared, comparison is high again for small volume, lightweight, efficiency；Multistage absorption unit, using alkali cleaning and water
The technique that combines is washed, device is intensive, thrust is big in absorption process, absorption efficiency is high, absorption efficiency can reach 99.9%.
Embodiment 2
Coke cooling water tank exhaust treatment system in 1 in conjunction with the embodiments；The coke cooling water tank waste gas of certain petro-chemical corporation is carried out only
Change, air inflow is 1550Nm3/ h, total sulfur concentration 150mg/m3, concentration of hydrogen sulfide 80mg/m3, process 5.0 mg/m of after cure hydrogen3,
Total sulfur concentration 7.5mg/m3, reach《Emission standard for odor pollutants》Specified in secondary discharge standard.
Embodiment 3
The useless processing system of coke cooling water tank in conjunction with the embodiments in 1；The coke cooling water tank waste gas of certain petro-chemical corporation is purified,
Air inflow is 1000Nm3/ h, total sulfur concentration 180mg/m3, 45 mg/m of concentration of hydrogen sulfide3, process 3.5 mg/m of after cure hydrogen3, always
Sulphur concentration 9.0mg/m3, reach《Emission standard for odor pollutants》Specified in secondary discharge standard.
Elaborate many details in order to fully understand this utility model in the above description.But above description
Only it is preferred embodiment of the present utility model, this utility model can be with much next different from alternate manner described here
Implement, therefore this utility model is not embodied as being limited by disclosed above.Any those skilled in the art exist simultaneously
Under without departing from technical solutions of the utility model ambit, the methods and techniques content all using the disclosure above is new to this practicality
Type technical scheme makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.It is every without departing from this
The content of utility model technical scheme, any simply repaiies to made for any of the above embodiments according to technical spirit of the present utility model
Change, equivalent variations and modification, still fall within the range of technical solutions of the utility model protection.
Claims (9)
1. a kind of coke cooling water tank exhaust treatment system, it is characterised in that：Including the gas sampling unit, waste gas air inducing that are sequentially connected
Unit, multistage absorption unit and demisting unit；The waste gas air inducing unit includes ejector, spray tower tower body, circulation fluid system,
The spray tower tower body is provided with inlet and outlet；The multistage absorption unit includes multistage absorption tower, the multistage absorption tower bag
Include multistage absorption tower tower body, nozzle, filler and catcher；The absorption tower bottom is water wash zone, and water wash zone is provided with water washing cycles
Pump, the water washing cycles pump are sprayed with nozzle downwards after circulation fluid is evacuated to top, and absorption tower top is alkali cleaning area, and alkali cleaning area sets
There are alkali cleaning circulating pump, the alkali cleaning circulating pump to be sprayed with nozzle downwards after circulation fluid is evacuated to top.
2. coke cooling water tank exhaust treatment system according to claim 1, it is characterised in that：Described filler is Raschig ring, Bao
One kind in your ring, cascade ring and ball-shaped filling material.
3. coke cooling water tank exhaust treatment system according to claim 1, it is characterised in that：The nozzle is conic nozzle.
4. coke cooling water tank exhaust treatment system according to claim 1, it is characterised in that：The gas sampling unit includes
Air chamber, the air chamber are connected with multiple coke cooling water tanks by pipeline, and pressure transducer and variable frequency pump are provided with the air chamber.
5. coke cooling water tank exhaust treatment system according to claim 4, it is characterised in that：The air chamber is communicated with air
Permeability cell, the permeability cell is provided with regulating valve.
6. coke cooling water tank exhaust treatment system according to claim 1, it is characterised in that：The demisting unit includes static state
Demister and mesh mist eliminator.
7. coke cooling water tank exhaust treatment system according to claim 1, it is characterised in that：The ejector is tied for rustless steel
Structure.
8. coke cooling water tank exhaust treatment system according to claim 1, it is characterised in that：The spray tower tower body is closed
Stainless steel structure, circulation fluid is using industrial fresh water.
9. coke cooling water tank exhaust treatment system according to claim 1, it is characterised in that：The circulation fluid of the water wash zone is
Industrial fresh water, the circulation fluid in the alkali cleaning area is sodium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621020831.6U CN206064125U (en) | 2016-08-31 | 2016-08-31 | A kind of coke cooling water tank exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621020831.6U CN206064125U (en) | 2016-08-31 | 2016-08-31 | A kind of coke cooling water tank exhaust treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206064125U true CN206064125U (en) | 2017-04-05 |
Family
ID=58436339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621020831.6U Withdrawn - After Issue CN206064125U (en) | 2016-08-31 | 2016-08-31 | A kind of coke cooling water tank exhaust treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206064125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178903A (en) * | 2016-08-31 | 2016-12-07 | 南京中衡元环保设备有限公司 | A kind of coke cooling water tank waste gas treatment process and system |
| CN109954398A (en) * | 2018-12-17 | 2019-07-02 | 上海伊尔庚环境工程有限公司 | The technique and system of water elution method processing acid waste gas |
-
2016
- 2016-08-31 CN CN201621020831.6U patent/CN206064125U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178903A (en) * | 2016-08-31 | 2016-12-07 | 南京中衡元环保设备有限公司 | A kind of coke cooling water tank waste gas treatment process and system |
| CN106178903B (en) * | 2016-08-31 | 2019-05-10 | 南京中衡元环保设备有限公司 | A kind of coke cooling water tank waste gas treatment process and system |
| CN109954398A (en) * | 2018-12-17 | 2019-07-02 | 上海伊尔庚环境工程有限公司 | The technique and system of water elution method processing acid waste gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211200 No. 3 Sheng Yuen Road, Lishui Economic Development Zone, Jiangsu, Nanjing Patentee after: Nanjing Zhong Yuan Yuan Environmental Protection Technology Co., Ltd. Address before: 211200 No. 3 Sheng Yuen Road, Lishui Economic Development Zone, Jiangsu, Nanjing Patentee before: Nanjing Zhonghengyuan Environmental Protection Equipment Co., Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20190510 |