CN107763639A - A kind of method for handling volatile organic matter - Google Patents
A kind of method for handling volatile organic matter Download PDFInfo
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- CN107763639A CN107763639A CN201610681168.2A CN201610681168A CN107763639A CN 107763639 A CN107763639 A CN 107763639A CN 201610681168 A CN201610681168 A CN 201610681168A CN 107763639 A CN107763639 A CN 107763639A
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- aerogenesis apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of method for handling volatile organic matter, this method comprises the following steps：(1) indifferent gas is entered the closed aerogenesis apparatus of gas phase and carry out gas displacement, so that the volatile organic matter in aerogenesis apparatus is discharged from aerogenesis apparatus；(2) volatile organic matter discharged from aerogenesis apparatus is entered emission-control equipment (15) and carry out burning disposal, be purified flue gas；The indifferent gas is nitrogen and/or the purifying smoke after cooling and dehumidification treatments.The method of the present invention can effectively control the gas gross of aerogenesis apparatus and emission-control equipment, eliminate tolerance lack of uniformity；Enter during gas sampling without air, explosion danger can be avoided；All or part of inertia source of the gas is used as by the use of the purifying smoke of existing combustion plant, the volatile organic matter gas of collection can enter back into existing combustion plant burning and be purified flue gas recirculation use, waste gas discharge can be reduced, incinerator special can not be put, equipment investment is saved, reduces operating cost.
Description
Technical field
The present invention relates to technical field of waste gas treatment, in particular it relates to a kind of method for handling volatile organic matter.
Background technology
Volatile organic matter (VOC) is the predecessor of atmospheric photochemical reaction, and an important factor for form haze.Oil
Production in Chemical Plant, use or a large amount of organic chemicals of storage, majority belong to volatile organic matter, and these organic chemicals are not
It can be entered in the form of volatile organic matter in air or water body with can avoiding, so as to cause environmental pollution.So it is badly in need of at present
It is a kind of farthest to reduce the technical method that VOC is discharged into environment.
The tidal air discharge of petrochemical enterprise discharge VOC key link including material storage tank, sewage collecting conveying and
The volatilization of organic chemicals and equipment and pipe valve sealing leak etc. of organic chemicals are conveyed in processing procedure.Oil at present
The major measure that work enterprise VOC is controlled and administered includes：Equipment and pipe valve sealing leak pass through regularly leak detection and reparation
It is controlled；The tidal air of material storage tank with a portion of recovery or processing, a part of then directly discharge；Sewage collecting conveys
During VOC substantially without control measure, when sewage collection system open area is larger, VOC will be caused in sewage to air
Loss, and when sewage collection system is closed, VOC may then assemble in systems, can produce blast during excessive concentration；At sewage
VOC waste gas majority is collected and handled during reason.
For VOC processing method, the tidal air VOC of strong volatile material storage tank is dense, more using absorption at present
Or adsorption treatment；VOC concentration is higher in waste gas caused by sewage disinfection treatment facility, is handled more using burning method, at biochemical sewage
VOC concentration is low, large-minded in waste gas caused by reason, more using biological treatment.But at existing absorption handling process and biology
Science and engineering skill emission VOC concentration most cases are difficult to meet discharge standard.
For the collection method of VOC waste gas, existing system is more to be collected using negative pressure, that is, utilizes waste gas collecting system
Air-introduced machine makes the gas-phase space of VOC aerogenesis facilities produce negative pressure, and surrounding air or nitrogen are set by air inlet into VOC aerogenesis
Apply, then collected by VOC exhausting waste gas pipelines.The waste gas total amount of this collection system is relatively stable, but due to connecting each facility
Exhaust pipe resistance otherness, it is difficult to the VOC waste gas of each facility is collected by setting tolerance so that part facility VOC waste gas is not
It can effectively collect, cause the loss to air.In addition, when air enters collection system, oxygen concentration is high, when VOC concentration is higher
When, it is understood that there may be explosion danger.
The content of the invention
It is an object of the invention to provide a kind of method for handling volatile organic matter, this method can solve existing volatilization
Property organic matter collect it is low to the collection efficiency of volatile organic matter with present in processing method, cause the loss into environment, and
Emission technical problem not up to standard.
To achieve these goals, the present invention provides a kind of method for handling volatile organic matter, and this method includes as follows
Step：
(1) indifferent gas is entered the closed aerogenesis apparatus of gas phase and carry out gas displacement, so that the volatility in aerogenesis apparatus
Organic matter is discharged from aerogenesis apparatus；
(2) volatile organic matter discharged from aerogenesis apparatus is made to be carried out into emission-control equipment (15) at burning
Reason, is purified flue gas；
The indifferent gas is nitrogen and/or the purifying smoke after cooling and dehumidification treatments.
Pass through above-mentioned technical proposal, production can effectively be controlled by entering aerogenesis apparatus drive row volatile organic matter using indifferent gas
The gas gross of device of air and emission-control equipment, eliminate the lack of uniformity of tolerance；Enter during gas sampling without surrounding air
Enter, waste gas and the oxygen concentration in waste gas after collection are controlled in safe range in aerogenesis apparatus, can avoid explosion danger；Utilize
Through cooling and being used as all or part of inertia source of the gas after dehumidification treatments, the volatility of collection has the purifying smoke of existing combustion plant
Machine thing gas enters back into existing combustion plant burning disposal and is purified flue gas recirculation use, it is possible to reduce waste gas discharges, simultaneously
Special incinerator can be not provided with, so as to save equipment investment, reduce operating cost.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the schematic diagram according to the method for the processing volatile organic matter of one embodiment of the present invention.
Description of reference numerals
The indifferent gas conveying fan of 1 Furnace 2
The indifferent gas delivery branch pipe of 3 cooler 4
The retracting device of 5 material storage tank 6
The 7 exhaust exhaust branch pipes of main 8
The air-floating apparatus of 9 storage tank 10
The stripping device air blower of 11 collecting-tank air exhauster 12
The air-introduced machine of 13 stripping device 14
The sewage collecting basin of 15 emission-control equipment 16
The sewage gravity stream pipeline of 17 bilge well 18
19 waste gas gas holders
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
As shown in figure 1, the present invention provides a kind of method for handling volatile organic matter, this method comprises the following steps：
(1) indifferent gas is entered the closed aerogenesis apparatus of gas phase and carry out gas displacement, so that the volatility in aerogenesis apparatus
Organic matter is discharged from aerogenesis apparatus；
(2) volatile organic matter discharged from aerogenesis apparatus is made to be carried out into emission-control equipment (15) at burning
Reason, is purified flue gas；
The indifferent gas is nitrogen and/or the purifying smoke after cooling and dehumidification treatments.
Method of the present invention enters aerogenesis apparatus drive row volatile organic matter using indifferent gas can effectively control production
The gas gross of device of air and emission-control equipment, eliminate the lack of uniformity of tolerance；Enter during gas sampling without surrounding air
Enter, waste gas and the oxygen concentration in waste gas after collection are controlled in safe range in aerogenesis apparatus, can avoid explosion danger；Utilize
Through cooling and being used as all or part of inertia source of the gas after dehumidification treatments, the volatility of collection has the purifying smoke of existing combustion plant
Machine thing gas enters back into existing combustion plant burning disposal and is purified flue gas recirculation use, it is possible to reduce waste gas discharges, simultaneously
Special incinerator can be not provided with, so as to save equipment investment, reduce operating cost.
According to the present invention, the aerogenesis apparatus refers to the device or equipment that can produce Volatile organic emissions, for example, institute
At least one of sewage-treatment plant, liquid material storage and transportation apparatus and sewage collection transmission device can be included by stating aerogenesis apparatus.
In method of the present invention, aerogenesis apparatus can be with closed or unlimited, and preferably aerogenesis apparatus is closed structure, can make inertia
Gas enters the volatile organic matter fully in discharge aerogenesis apparatus after aerogenesis apparatus, avoids volatile organic matter from being escaped into environment
Dissipate.According to the present invention, in order to further promote indifferent gas to improve in aerogenesis apparatus and volatilize even into each aerogenesis apparatus
The expulsion efficiency of property organic matter, in the aerogenesis apparatus, sewage-treatment plant and the liquid material storage and transportation apparatus can be just
Run under the conditions of pressure, the sewage collection transmission device can be run under tiny structure, and the carrying out practically pressure of above-mentioned aerogenesis apparatus can
To be adjusted according to apparatus structure and aerogenesis situation, under preferable case, sewage-treatment plant and liquid material storage and transportation apparatus
Operating pressure can be 5kPa to 10kPa；The operating pressure of sewage collection transmission device can be -5kPa to 0kPa, above-mentioned aerogenesis dress
The method of adjustment for the operating pressure put does not require particularly, can be well known to those skilled in the art, for example, can lead to
Cross the device such as access air-valve, blower fan and compression pump in above-mentioned aerogenesis apparatus its operating pressure is adjusted and controlled.
According to the present invention, emission-control equipment can be existing combustion plant, and its specific species has no particular limits,
For example, the emission-control equipment can be selected from least one of Furnace, boiler and waste incinerator.Using upper
Stating existing burning facility can avoid setting incinerator special, so as to reduce equipment cost.
According to the present invention, this method includes：Make closed into gas phase with the purifying smoke after dehumidification treatments through cooling
Aerogenesis apparatus carry out gas displacement, for example, purifying smoke is cooled by cooler 3 and dehumidification treatments obtain through cooling
With the purifying smoke of dehumidification treatments.The operating condition of cooling and dehumidification treatments can change in very large range, specifically operate
Condition can be adjusted according to existing combustion plant exhaust gas volumn, it is preferable that described by cooling and the purification after dehumidification treatments
The temperature of flue gas can be less than 45 DEG C, and it is described through cooling and dehumidification treatments after purifying smoke in oxygen weight content
Can be less than 5%.Meet that the indifferent gas of above-mentioned condition is used in method of the present invention, it is possible to reduce into exhaust-gas treatment
Oxygen content in device 15, avoids explosion danger.
According to the present invention, in order to further improve indifferent gas into the efficiency of aerogenesis apparatus progress gas displacement, it is preferable that
Above-mentioned indifferent gas can enter the aerogenesis apparatus after supercharging and carry out gas displacement, such as be entered by indifferent gas conveying fan 2
Row pressure-increasing unit.The pressure of indifferent gas supercharging can be adjusted according to the actual conditions of aerogenesis apparatus, it is preferable that indifferent gas can
To be pressurized to 7-12kPa.
According to the present invention, the flow of the indifferent gas can change in very large range, for the ease of controlling each aerogenesis
The discharge capacity of volatile organic matter in device, the collection efficiency for improving volatile organic matter, under preferable case, the processing volatilization
The method of property organic matter can also include：The flow of the indifferent gas is adjusted so that the pressure in the aerogenesis apparatus is kept substantially
It is constant, such as：, can be into the indifferent gas of constant flow rate for permanent liquid level aerogenesis facility；, can be with for liquid level variable aerogenesis facility
Into the indifferent gas of variable-flow.
According to the present invention, the aerogenesis apparatus can be one or more, and when aerogenesis apparatus is multiple, the processing is waved
The method of hair property organic matter can also include：Indifferent gas is entered the multiple aerogenesis apparatus after supercharging and carry out gas displacement,
Such as aerogenesis apparatus is entered by indifferent gas delivery branch pipe 4 and carries out gas displacement, make what is discharged from the multiple aerogenesis apparatus
Volatile organic matter is handled after importing exhaust main 7 into emission-control equipment 15, such as can make multiple aerogenesis apparatus
The volatile organic matter of middle discharge into emission-control equipment 15 handle after exhaust branch pipe 8 imports exhaust main 7
To purifying smoke.The volatile organic matter discharged in the multiple aerogenesis apparatus is collected using exhaust main 7 can improve volatilization
Property organic matter collection efficiency, reduce collecting device cost.The operating pressure of indifferent gas supercharging and the operating pressure of exhaust main 7
It can also change in very large range, it is preferable that indifferent gas is pressurized to 7-12kPa, and the operating pressure of exhaust main 7 can be 4-
8kPa.The downstream of exhaust main 7 can set air-introduced machine 14, to be further easy to the waste gas being vented in main 7 to enter at waste gas
Reason device 15 is handled.
Further, in order to balance the waste gas tolerance of exhaust main 7, it is highly preferred that bypass can be set to exhaust main
Tolerance regulation is carried out, for example, setting waste gas gas holder 19 in the exhaust bypass of main 7.The operating pressure of the bypass can also basis
The situation of exhaust main and aerogenesis apparatus is adjusted, it is preferable that the operating pressure of bypass can be 4-6kPa.
According to the present invention, the aerogenesis apparatus can include sewage-treatment plant, liquid material storage and transportation apparatus and sewage collection
One or more in defeated device, same above-mentioned aerogenesis apparatus can also include one or several.Using of the present invention
When method is handled the volatile organic matter in sewage-treatment plant, the sewage-treatment plant can include storage tank 9, every
At least one of oily device and air-floating apparatus 10, wherein, the storage tank 9 can include sewage storage tank, sump oil storage tank and sludge
At least one of storage tank；The oil-isolating device is well known to those skilled in the art, and refers to make to contain using Gravity Separation principle
The device that impurity, water and oil in oily waste water are separated；The air-floating apparatus 10 refers to by waste water or other waste liquids
Produce a large amount of microbubbles and microbubble is attached on oil droplet or suspended particle so that oil droplet or suspension are bubbled through the water column and
The device of separation of solid and liquid is realized, in method of the present invention, under preferable case, the bubble source of the gas of air-floating apparatus 10 can be
Above-mentioned indifferent gas, it is above-mentioned it is preferable in the case of, can effectively avoid drawing into sewage-treatment plant and emission-control equipment 15
Enter air, improve the operation stability of system.
Further, in order to improve the removal efficiency of volatile organic matter, preferably may be used in above-mentioned sewage-treatment plant
So that provided with least one stripping device 13, the stripping device 13 refers to make it by being passed through gas into waste water or other waste liquids
The device that the gas or volatile organic matter of middle dissolving are transferred to gas phase and removed, in method of the present invention, it is preferable that
The stripping gas being passed through in stripping device 13 can be above-mentioned indifferent gas.Sewage-treatment plant provided with stripping device 13 can be with bright
The aobvious removal speed and removal efficiency for improving volatile organic matter.
According to the present invention, the liquid material storage and transportation apparatus can include material storage tank 5 and retracting device 6, using this hair
When bright described method is handled the volatile organic matter in sewage-treatment plant, indifferent gas can be made to enter material storage tank
5 progress gas displacements simultaneously discharge volatile organic matter.In order to improve raw material availability, under preferable case, thing can be carried out first
Material recovery, then the processing of volatile organic matter is carried out, the indifferent gas is entered in the material storage tank 5 and carry out gas displacement,
So that caused volatile organic matter enters the retracting device 6 progress material recycle in the material storage tank 5, then make from recovery
The volatile organic matter discharged in device 6 enters emission-control equipment 15 and carries out burning disposal, is purified flue gas.Above-mentioned inertia
Gas can be for nitrogen or through cooling and the purifying smoke after dehumidification treatments, under preferable case, for volatile organic matter concentration phase
To higher liquid material storage and transportation apparatus, indifferent gas can select nitrogen, to avoid to cause to material using purifying smoke
Pollution.
According to the present invention, sewage collection transmission system can include bilge well 17, sewage gravity stream pipeline 18 and sewage collecting basin
16, sewage can enter sewage collecting basin 16 by sewage gravity stream pipeline 18；Using method of the present invention to sewage collection
When volatile organic matter in defeated device is handled, the covered and enclosed of sewage collecting basin 16 can be made, make the indifferent gas
The sewage collecting basin 16 closed into gas phase carries out gas displacement, so that volatile organic matter discharges the sewage collecting basin
16 and enter emission-control equipment 15 carry out burning disposal, be purified flue gas.
Further, can be in indifferent gas air inlet and volatility for the ease of controlling the operating pressure of sewage collection transmission device
Flowmeter is set on organic matter gas exhaust piping, air-introduced machine 14 is set on volatile organic matter gas exhaust piping, under preferable case, is led to
Cross the tolerance of sewage water q of the sewage gravity stream pipeline 18 into sewage collecting basin 16, the indifferent gas into sewage collecting basin 16
QAAnd the exhausted air quantity Q discharged from sewage collecting basin 16BFormula 1 can be met：
QB>QA+ (1-1.5) q formulas (1).
According to the present invention, the emission-control equipment can use burning process to volatile organic compounds at
Reason, exhaust-gas treatment facilities can be at least one of existing process heating furnace, boiler and waste incinerator, so as to avoid setting
Special burned waste gas treatment facility, reduce equipment cost.
In another embodiment of the present invention, special VOC waste gas combustion furnaces can also be set as exhaust-gas treatment
Device, for further improving exhaust treatment efficiency.
The burning process that exhaust-gas treatment uses is well known to those skilled in the art, and the acceptable exhaust after processing can reach
Volatile organic emissions concentration is not higher than 120mg/Nm3Requirement.
The present invention is further illustrated by the following examples, but the present invention is not therefore subject to any restriction.
Embodiment
As shown in figure 1, the present embodiment is used for the method for the processing volatile organic matter for illustrating the present invention.In the present embodiment
In, sewage design scale 300m3/ h, 25 DEG C of sewage temperature contain benzene in sewage, concentration 60mg/L, and each unit parameter is as follows
Shown in table 1：
Obtained purifying smoke is burned in Furnace 1 and is sent into through indifferent gas conveying fan 2 in cooler 3 and is cooled
Aerogenesis apparatus is sent into by indifferent gas conveyance conduit with after dehumidifying, aerogenesis apparatus includes sewage-treatment plant, liquid material accumulating
Device and sewage collection transmission device：Sewage-treatment plant includes material storage tank 9, air-floating apparatus 10 and stripping tank 13, material storage tank 9,
Air-floating apparatus 10 and stripping tank 13 introduce purifying smoke by indifferent gas delivery branch pipe respectively, the volatilization discharged by gas exchanges
Property organic matter pass through exhaust branch pipe 8 and import exhaust main 7, the bubble source of the gas of air-floating apparatus 10 and the stripping of the stripping device 13
Gas is purifying smoke；Liquid material storage and transportation apparatus includes material storage tank 5 and material recycling device 6, and storage tank 3 introduces nitrogen,
It is dry that the volatile organic matter of discharge imports exhaust after the recovery of material recycling device 6 by the exhaust branch pipe 8 of material recycling device 6
Pipe 7；Sewage collection transmission device includes sewage collecting basin 16, bilge well 17 and sewage gravity stream pipeline 18, and sewage collecting basin 16 is capped
It is closed, and purifying smoke is introduced by indifferent gas delivery branch pipe 4 and carries out gas displacement, volatile organic matter passes through exhaust branch pipe 8
Exhaust main 7 is imported, the volatile organic matter for importing exhaust main 7 is burned through the introducing emission-control equipment 15 of air-introduced machine 14
Processing, is purified flue gas, emission-control equipment selects existing Furnace, can include Furnace 1, i.e. waste gas
The purifying smoke that burning disposal obtains in processing unit 15 recycles as indifferent gas；Sewage-treatment plant and liquid material storage
The operating pressure of shipping unit is about 5kPa to 10kPa, and the operating pressure of sewage collection transmission device is about -3kPa to -1kPa.
Table 1
(1) VOC waste gas gas production is determined
VOC waste gas gas production is carried tolerance, ventilation tolerance, disengaging material displacement tolerance secretly by aeration quantity, current and formed, each list
First VOC waste gas gas production, which calculates, sees as shown in table 2：
Table 2
Total tolerance is 2121.5Nm3/ h, determine main caliber DN350.During branch diameter and unit frictional resistance are seen the above table.
(2) VOC concentration calculates
VOC concentration calculated cases are as shown in table 3：
Table 3
Total tolerance is 2121.5Nm3/ h, average benzene concentration 6228mg/Nm3, benzene total displacement 13214g/h.
Wherein stripping tank benzene discharge capacity 10477g/h, the 79% of benzene total displacement is accounted for, benzene concentration 60mg/L from water inlet is down to
30.32mg/L。
(3) system design
As shown in figure 1, inertia source of the gas uses Furnace 1,150 DEG C of exhaust gas temperature, flue gas composition (volume ratio)：CO2
Accounting 8.5%, H2O accountings 17.4%, N2Accounting 71.6%, O2Accounting 2.5%.Through 3 direct water-spraying control of gas cooler to 40
DEG C, by generation 2200Nm3/ h dry flue gas meters, need to handle wet flue gas 2663Nm3/ h, 20 DEG C of meters of coolant water temperature are, it is necessary to cooling water
14.5t/h, amount to draining 14.9t/h.Flue gas composition is as follows after cooling：CO2Accounting 10.3%, N2Accounting 86.7%, O2Accounting
3%.
Indifferent gas conveying fan 2 is from 9-19 types centrifugal fan NO2, total head 7560Pa, flow 2790m3/ h, power
11kW；Convey main DN350, unit frictional resistance 1.046Pa/m.
Liquid level variable facility relies on Stress control air inflow, and permanent liquid level facility sets constant air inflow.
Stripping device air blower 12 selects Roots blower, model L52LD, and pressure rises 49000Pa, inlet flow rate 18m3/
Min, power 30kW.
Collecting-tank air exhauster 11 selects centrifugal blower, model 9-19, NO4-1, total head 3660Pa, inlet flow rate 13m3/
Min, power 2.2kW.
The volume of gas holder 22 adds up to 200m by each facility disengaging material displacement air volume calculation3。
Indifferent gas main end sets air-introduced machine 14, is sent into the burning disposal of emission-control equipment 15, emission-control equipment is existing
Some Furnaces, air-introduced machine 14 select centrifugal blower, model 9-19, NO4.5-5, total head 4450Pa, inlet flow rate
2269m3/ h, power 5.5kW.
The waste gas of VOC containing benzene can meet VOC after Furnace burns<120mg/Nm3Requirement.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
- A kind of 1. method for handling volatile organic matter, it is characterised in that this method comprises the following steps：(1) indifferent gas is entered the closed aerogenesis apparatus of gas phase and carry out gas displacement, so that the volatility in aerogenesis apparatus is organic Thing is discharged from aerogenesis apparatus；(2) volatile organic matter discharged from aerogenesis apparatus is entered emission-control equipment (15) and carry out burning disposal, It is purified flue gas；The indifferent gas is nitrogen and/or the purifying smoke after cooling and dehumidification treatments.
- 2. according to the method for claim 1, it is characterised in that the aerogenesis apparatus includes sewage-treatment plant, liquids Expect at least one of storage and transportation apparatus and sewage collection transmission device；The operation of sewage-treatment plant and the liquid material storage and transportation apparatus Pressure is 5kPa to 10kPa；The operating pressure of the sewage collection transmission device is -5kPa to 0kPa.
- 3. according to the method for claim 1, it is characterised in that this method includes：Make through cooling and the institute after dehumidification treatments State purifying smoke and carry out gas displacement into the closed aerogenesis apparatus of gas phase；The temperature of the purifying smoke is less than 45 DEG C, and institute The weight content for stating oxygen in purifying smoke is less than 5%.
- 4. according to the method for claim 1, it is characterised in that the emission-control equipment (15) is to be heated selected from technique At least one of stove, boiler and waste incinerator.
- 5. according to the method for claim 1, it is characterised in that the method for the processing volatile organic matter also includes：Adjust The flow of the whole indifferent gas is so that the pressure in the aerogenesis apparatus is held essentially constant.
- 6. according to the method for claim 1, it is characterised in that the aerogenesis apparatus is one or more；The method of the processing volatile organic matter also includes：After the indifferent gas is pressurized to 7-12kPa, respectively enter described Multiple aerogenesis apparatus carry out gas displacement, and the volatile organic matter for making to discharge from the multiple aerogenesis apparatus imports exhaust main (7) handled afterwards into emission-control equipment (15), be purified flue gas, the operating pressure of the exhaust main (7) is 4- 8kPa。
- 7. according to the method for claim 6, it is characterised in that the method for the processing volatile organic matter also includes：It is right The exhaust main (7) sets bypass to carry out tolerance regulation, and the operating pressure of the bypass is 4-6kPa.
- 8. according to the method for claim 2, it is characterised in that the sewage-treatment plant includes storage tank (9), oil-isolating device At least one of with air-floating apparatus (10)；At least one stripping device (13) is provided with the sewage-treatment plant；The bubble source of the gas of the air-floating apparatus (10) and the stripping gas of the stripping device (13) are the indifferent gas.
- 9. according to the method for claim 2, it is characterised in that the liquid material storage and transportation apparatus includes material storage tank (5) With retracting device (6)；The method of the processing volatile organic matter includes：Enter the indifferent gas and gas is carried out in the material storage tank (5) Displacement, so that caused volatile organic matter enters the retracting device (6) progress material recycle in the material storage tank (5), The volatile organic matter of the discharge from retracting device (6) is entered emission-control equipment (15) again and carry out burning disposal, obtain net Change flue gas；Wherein, the indifferent gas is nitrogen.
- 10. according to the method for claim 2, it is characterised in that the sewage collection transmission device includes bilge well (17), sewage Gravity stream pipeline (18) and sewage collecting basin (16), sewage enter the sewage catchment by the sewage gravity stream pipeline (18) Pond (16)；The method of the processing volatile organic matter includes：Make the sewage collecting basin (16) covered and enclosed, make the indifferent gas The sewage collecting basin (16) closed into gas phase carries out gas displacement, so that volatile organic matter discharges the sewage catchment Pond (16) simultaneously enters emission-control equipment (15) progress burning disposal, is purified flue gas；Wherein, the sewage water q, described that the sewage collecting basin (16) is entered by the sewage gravity stream pipeline (18) Into the tolerance Q of the indifferent gas of sewage collecting basin (16)AAnd the exhausted air quantity Q of the discharge from sewage collecting basin (16)BMeet Formula (1)：QB>QA+ (1-1.5) q formulas (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681168.2A CN107763639A (en) | 2016-08-17 | 2016-08-17 | A kind of method for handling volatile organic matter |
Applications Claiming Priority (1)
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| CN110564441A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Safe recovery system and recovery process for VOCs in styrene storage tank |
| CN110562620A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | safe recovery system and recovery process for VOCs in heavy oil storage tank |
| CN114314819A (en) * | 2022-01-07 | 2022-04-12 | 中国恩菲工程技术有限公司 | Garbage leachate explosion-proof deodorization system and deodorization method |
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Application publication date: 20180306 |