CN207210002U - A kind of swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device - Google Patents
A kind of swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device Download PDFInfo
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- CN207210002U CN207210002U CN201720591385.2U CN201720591385U CN207210002U CN 207210002 U CN207210002 U CN 207210002U CN 201720591385 U CN201720591385 U CN 201720591385U CN 207210002 U CN207210002 U CN 207210002U
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Abstract
The utility model discloses a kind of swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device;Including boiler and flue gas waste water adaptive processing system;The flue gas of boiler is finally discharged by air preheater, back-end ductwork, electric cleaner and desulfurizing tower by chimney successively;Rotational flow atomizer is arranged in back-end ductwork;Desulfurization wastewater pond is provided with below desulfurizing tower;Desulfurization wastewater pond is sequentially connected swirling flow atomizing pump, magnetic valve, rotational flow atomizer by water pipe;Flue gas waste water adaptive processing system includes flue-gas temperature sensor, flue gas flow sensor, flue gas pressures sensor, wastewater temperature sensor, wastewater disposal basin liquid level sensor, wastewater flow sensor, atomizing pressure sensor and the wastewater treatment full working scope coupler based on multinomial balance model being connected with the sensor.Present treatment device can effectively realize desulfurization wastewater atomization, evaporation, coalescence, solve fouling, corrosion and blockage problem in flue evaporation.
Description
Technical field
It the utility model is related to flue gas desulphurization dust removal field, more particularly to a kind of swirling flow atomizing desulfurization wastewater coalescence
Dedusting self-adaptive processing device.
Background technology
In recent years, as the fast development of economic society, China's thermoelectricity installed capacity constantly increase, but incident dirt
The increase for contaminating the total emission volumn of thing brings huge pressure to ecological environment, therefore flue gas desulfurization treatment technology is gradually closed
Note.Currently, Limestone-gypsum Wet Flue Gas Desulfurization Process technology is because with strong applicability, desulfuration efficiency is high, absorbent utilization rate is high, equipment
The advantages that running rate is high, desulfurizing agent lime stone abundance is cheap and easy to get, turns into desulfurization work most widely used, that technology is most ripe
Skill.
However, the pH of desulfurization wastewater caused by this technique is 4~6, and contain substantial amounts of suspension (gypsum
Grain, silica, the hydroxide of aluminium and iron), oversaturated sulphite, sulfate, fluoride and micro heavy metal.This
Wherein it is much the first pollutant that control is required in national environmental standard, using chemistry such as conventional neutralization, flocculation, precipitations
Discharge index is also unable to reach after method processing.Due to the particularity of water quality, desulfurization wastewater intractability is larger, and processing is not up to standard
Serious water pollution will be caused.
At present, the difficulty in treatment of desulfurization wastewater mainly have it is following some:
1st, water quality, water are influenceed greatly by coal-fired, desulphurization system moisturizing and desulfurization operation condition, and variation water quality scope is very big;
2nd, concentration of suspension is high, and fine particle ratio is big, and it is dirty stifled to easily cause film filter;
3rd, silicon, magnesium isoconcentration are high, and calcium sulfate degree of supersaturation is high, and fouling tendency is strong, and membranous system fouling cleaning recovers difficult;
4th, when organic concentration is high, membranous system runnability is significantly affected, causes film dirty stifled.
Therefore, it is the focus of industry to the innovative research of heat-engine plant desulfurized waste water treatment process.Except traditional dosing,
Outside precipitation, press filtration, also have using techniques such as molecule membrane filtrations, but not only processing cost is high for these techniques, and difficult to realize zero
Discharge.
Currently, in the Zero-discharge treating process field of desulfurization wastewater, mainly there are two class process routes:Evaporative crystallization method and pot
Stove flue facture.
Evaporative crystallization method is introduced into desulfurization wastewater in special evaporator, is heated to boiling by steam or electric heater
Rise so that the moisture in waste water gradually flashes to gas phase, and regelation into liquid phase, obtains weight to separated gas phase water after cooling
It is multiple to utilize;Suspension and solable matter in waste water be trapped within the increase of cycles of concentration steam raffinate in, finally with
Crystal form separates out.Evaporative crystallization method is extensive because its heat transfer coefficient is high, operating flexibility is big, enters the advantages that water pretreatment is simple
Applied in the fields such as chemical industry, medicine, desalinization and wastewater treatment.But high energy consumption, equipment possessed by evaporative crystallization method
The shortcomings of easy fouling and big investment is an important factor for restricting its application.
And boiler flue facture is a kind of method in flue internal spraying evaporation process desulfurization wastewater.I.e. by certain
Spray regime, after desulfurization wastewater is atomized spray into electric cleaner before boiler back end ductwork in so that the exhausted water after atomization
Rapid evaporation gasification under the heating of high-temperature flue gas is dropped in, and suspension therein then forms tiny solid with solable matter
Grain, together caught under the entrainment effect of flue gas stream into electric cleaner by electrode, turn into ash content exclusion, realize the waste water of desulfurization
Near-zero release is handled.
Compared with traditional evaporative crystallization method, the equipment required for flue facture is simple, without adding extra chemistry
Medicament, it can effectively solve the problem that the number of devices present in current Waste Water Treatment is more, investment amount is huge, operating cost is high
The shortcomings of high and repair and maintenance workload is larger;At the same time, the operation operating process of system is simple, the dirt in desulfurization wastewater
Contaminating thing turns into ash content exclusion, thus in the absence of the subsequent treatment problem of sludge;At the same time, boiler afterheat is rationally make use of,
Reach the purpose of environmental protection and energy saving.
At present, had a patented technology of substantial amounts of flue facture, but in its practical application successful case report compared with
It is few.Main cause is after desulfurization wastewater enters flue, to cause flue-gas temperature to reduce.Because boiler load constantly changes, boiler smoke
Tolerance and temperature also constantly change, and desulfurization wastewater, which sprays into, may bring the penetrating temperature that lights a cigarette to spend low, on the one hand be down to acid
Dew point, flue is caused largely to corrode;On the other hand because the atomization difference and arrangement of nozzle are unreasonable, cause flue big
Amount ash deposit and slag buildup, wash away, cause flue blockage.Such as Chinese invention patent application (application publication number:CN101844819A, Shen
Please date of publication:2010-9-29) disclose a kind of heat-engine plant wet flue gas desulfurization waste-water flue spraying treatment method.This method exists
Two-fluid spray nozzle is arranged in flue after air preheater, and desulfurization wastewater is pumped into nozzle after atomization and evaporated, with flue gas
Together discharge.Because arrangement of nozzles mode is unreasonable, waste water is difficult to abundant contact, heat exchange with flue gas, thus may lead
Cause atomized drop can not evaporating completely in a short time, cause boiler flue corrosion, wash away;On the other hand, this method is not to atomization
Wastewater flow control effectively, and what is taken is fixed atomization quantity, can not be to the cigarette after processing when unit operation working conditions change
Temperature degree achieves effective control, and may bring the relevant issues of low-temperature corrosion.
In view of the above-mentioned problems, inventor has found that desulfurization wastewater sprays into temperature and its changing value, the spray of point by repetition test
The flow field for entering rear heterogeneous fluid is the key for restricting desulfurization wastewater processing.Therefore, the utility model uses the height of inventor's invention
Rotational flow atomizer is imitated by eddy flow placement technique, designs a set of wastewater treatment equipment being adapted with unit load and method,
Desulfurization wastewater atomization, evaporation, coalescence can be effectively realized, solves fouling, corrosion and blockage problem in flue evaporation hair.
The content of the invention
The shortcomings that the purpose of this utility model is to overcome above-mentioned prior art and deficiency, there is provided a kind of swirling flow atomizing desulfurization
Waste water coalescence dedusting self-adaptive processing device.Both solved the process problem of desulfurization wastewater, and improved desulfuration efficiency;Promote again
The coalescence of fine particle, the arresting efficiency of electric precipitation is improved, reduce the discharge of fine particle;Effectively utilize boiler residual simultaneously
Heat, save energy consumption.
The utility model is achieved through the following technical solutions:
A kind of swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device, including boiler 1 and flue gas waste water it is adaptive
Processing system 11;
The exhanst gas outlet of the boiler 1 is sequentially connected by flue:Air preheater 2, afterbody heating flue 3, electric cleaner
4th, desulfurizing tower 5;The flue gas that the boiler 1 is discharged passes through air preheater 2, afterbody heating flue 3, electric cleaner 4 and desulfurization successively
Tower 5, finally discharged by chimney 8;
Multiple rotational flow atomizers 9 are disposed with the afterbody heating flue 3;
The side of desulfurizing tower 5 is provided with desulfurization wastewater pond 6, for collecting desulfurization wastewater caused by desulfurizing tower 5;
The desulfurization wastewater pond 6 is sequentially connected swirling flow atomizing pump 7, magnetic valve, rotational flow atomizer 9 by water pipe;
The flue gas waste water adaptive processing system 11 includes:Flue-gas temperature sensor, flue gas flow sensor, flue gas pressure
Force snesor, wastewater temperature sensor, wastewater disposal basin liquid level sensor, wastewater flow sensor, atomizing pressure sensor with
And the wastewater treatment full working scope coupler based on multinomial balance model being connected with the sensor;
The flue-gas temperature sensor, flue gas flow sensor are arranged in flue;
The wastewater temperature sensor, wastewater disposal basin liquid level sensor are arranged in desulfurization wastewater pond 6;
The wastewater flow sensor, atomizing pressure sensor are arranged on the water pipe line of magnetic valve and rotational flow atomizer 9
On;
The flue gas waste water adaptive processing system 11 uses Model coupling device and adaptive controller, mode input amount bag
Include flue gas flow Qp, wastewater disposal basin liquid level H, before processing flue gas pressures P1, before processing flue-gas temperature T1, flue gas pressures after processing
P2, flue-gas temperature T after processing2, wastewater pressure P3, wastewater temperature T3, atomizing pressure P4, atomization temperature T4, controlled quentity controlled variable is that atomization is useless
Water-carrying capacity Ql, adjust swirling flow atomizing pump pressure and valve opening, realize Self Adaptive Control.
The rotational flow atomizer 9 is multiple and be tangentially arranged in the hot cigarette of afterbody after air preheater 2 in a manner of eddy flow
On the same section in road 3, it is that desulfurization wastewater is atomized into 5-15 μm of fine droplets that it, which is acted on, by flue gas under bigger serface
Used heat evaporates.
The mode of the eddy flow refers to:The center line of rotational flow atomizer 9 is tangent with an imaginary circle;Where the imaginary circle
Plane is vertical with flow of flue gas direction;The center of circle of the imaginary circle is on the center line of flue;The imaginary diameter of a circle and cigarette
The ratio between the inscribed circle diameter in road is less than 1:2, the desulfurization wastewater for realizing flue gas and rotation at a high speed forms stable rotation in flue
Flow field, dust-laden heat smoke mutually intervolve suction with being atomized fine waste water drop generation, hit and mix.
Agitator 10 is provided with the desulfurization wastewater pond 6, for stirring desulphurization waste water, avoids particulate matter from settling.
In a specific embodiment of the present utility model, the desulfurization wastewater temperature under normal temperature in desulfurization wastewater pond is 25 DEG C, empty
The flue-gas temperature that air preheater 2 exports is 160 DEG C.When temperature drop control is at 2 DEG C or so after being atomized desulfurization wastewater cooling, according to
Thermal balance relation in flue 3 can obtain desulfurization wastewater atomization the ratio between flow and flue gas flow, when flue gas flow is 1,200,000
m3During/h, desulfurization wastewater atomization flow is adjusted to 8-10m3/h.Flue-gas temperature T after processing2During less than 158 DEG C, device is automatically adjusted
By control valve opening, realize that cigarette temperature is stable.It is possible thereby to by Model coupling device and Self Adaptive Control according to different flue gas stream
Amount condition automatically adjusts corresponding desulfurization wastewater atomization quantity, realizes the adaptive-flow control of desulfurization wastewater treatment system.
A kind of swirling flow atomizing desulfurization wastewater coalescence dedusting adaptive processing method, it comprises the following steps:
Step 1:Desulfurization wastewater is pumped into rotational flow atomizer 9 by swirling flow atomizing pump 7, by the high-speed rotational of rotational flow atomizer 9
Centrifuge with after atomization, being sprayed into along circle of contact direction along afterbody heating flue 3, with the flue gas containing dust occur violent volume inhale,
Hit and mix;
Step 2:Solid particulate matter in desulfurization wastewater produces centrifugation, its fine water-spray and dust combination coalescence, quilt
Quick heating, moisture film are rapidly evaporated, and are entered with flue gas in electric cleaner 4;In eddy flow turbulent flow processes, the fine powder in flue gas
The rapid coalescence of desulfurization wastewater particle of dirt and wetted perimeter is into bulky grain, while suspension and soluble pollutants in desulfurization wastewater,
Separate out and grow up in solid form, and together caught by electric cleaner 4, turn into ash content discharge system;
Now, flue gas waste water adaptive processing system 11 passes through the temperature and pressure change before and after real-time detection process flue gas
Gradient, with reference to flue gas flow, the pressure of rotational flow atomizer 9, calculated by model, automatically adjust swirling flow atomizing pump pressure and valve is opened
Degree, the wastewater flow rate of rotational flow atomizer 9 is adjusted into, makes the mixed flue gas temperature drop-out value control of swirling flow atomizing region within 2 DEG C,
And it is higher than 5 DEG C of flue dust dew-point temperature.
The automatic adjusument of flue gas waste water adaptive processing system 11 foundation also includes following parameter:
For a specific embodiment:Under normal temperature, the desulfurization wastewater temperature in desulfurization wastewater pond is 25 DEG C, air preheater 2
The flue-gas temperature of outlet is 160 DEG C;
When temperature drop control is at 2 DEG C or so after being atomized desulfurization wastewater cooling, closed according to the thermal balance in afterbody heating flue 3
System, desulfurization wastewater atomization the ratio between flow and flue gas flow can be obtained, when flue gas flow is 1,200,000 m3During/h, desulfurization wastewater mist
Change Flow-rate adjustment is 8-10m3/h;
Flue-gas temperature T after processing2During less than 158 DEG C, device is automatically adjusted by electromagnetic valve for adjusting aperture, realizes that cigarette temperature is steady
It is fixed;Thus corresponding desulfurization can be automatically adjusted according to different flue gas flow conditions by Model coupling device and Self Adaptive Control to give up
Water atomization amount, realize the adaptive-flow control of desulfurization wastewater treatment system.
The utility model is had the following advantages and effect relative to prior art:
1st, swirling flow atomizing pump pressure and valve opening are automatically adjusted by flue gas waste water adaptive processing system, it can be ensured that
Swirling flow atomizing area temperature will not be reduced to acid dew point, realize fibre selection, reduce the possibility of boiler flue corrosion;
2nd, nozzle uses eddy flow arrangement in flue so that flue gas occurs violent volume suction, shock with desulfurization wastewater and mixed
Close, be together threadingly advanced in flue, realize uniform flow field, and make desulfurization wastewater there is time enough to reach evaporation state, avoid
Drop washes away wall.
3rd, the desulfurization wastewater of rotation occurs with flue gas in violent shock and mixed process at a high speed, and dust granules produce efficient
Coalescence and eddy flow advance, become bulky grain, are easy to deduster to catch, dust deposit in flue will not be caused to block.
4th, desulfurization wastewater is introduced into flue, can suitably reduces flue-gas temperature, reduced volume flow, draw so as to reduce
The power consumption of blower fan.
5th, the desulfurization wastewater being introduced into flue can improve smoke moisture, reduce the ratio resistance of dust granule in flue gas, by force
It is charged to change subparticle, is advantageous to improve dust collector efficiency.
6th, rationally desulfurization wastewater is evaporated using boiler afterheat, the desulfurization wastewater treatment system phase with conventionally employed evaporator
Than greatly reducing energy consumption, having reached the purpose of energy-conservation.
7th, the moisture in desulfurization wastewater largely enters the water circulation of participation sulfur removal technology after desulfurizing tower, can reduce desulfurization work
Skill water consume.
8th, desulfurization wastewater rapid evaporation gasification, suspension and soluble solids therein in the flue before electric cleaner
Enter electric cleaner under the entrainment effect of air-flow and caught by electrode and remove, both solve the process problem of desulfurization wastewater, again
Efficiency of dust collection is improved, finally realizes the zero discharge treatment of desulfurization wastewater.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is A-A sectional views in Fig. 1;That is the distribution schematic diagram of rotational flow atomizer 9.
Embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
As shown in Figure 1, 2.The utility model discloses a kind of swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing dress
Put, including boiler 1 and flue gas waste water adaptive processing system 11;
The exhanst gas outlet of the boiler 1 is sequentially connected by flue:Air preheater 2, afterbody heating flue 3, electric cleaner
4th, desulfurizing tower 5;The flue gas that the boiler 1 is discharged passes through air preheater 2, afterbody heating flue 3, electric cleaner 4 and desulfurization successively
Tower 5, finally discharged by chimney 8;
Multiple rotational flow atomizers (9) are disposed with the back-end ductwork (3);
The side of desulfurizing tower 5 is provided with desulfurization wastewater pond 6, for collecting desulfurization wastewater caused by desulfurizing tower 5;
Desulfurization wastewater is atomized into atomizing particle of the particle diameter less than 15 μm by rotational flow atomizer 9, and the big I of atomizing particle is led to
Cross the regulation valve regulation of rotational flow atomizer 9.
The desulfurization wastewater pond 6 is sequentially connected swirling flow atomizing pump 7, magnetic valve, rotational flow atomizer 9 by water pipe;Eddy flow mist
Change the entrance of pump 7 installation rotary sieve.
The flue gas waste water adaptive processing system 11 includes:Flue-gas temperature sensor, flue gas flow sensor, flue gas pressure
Force snesor, wastewater temperature sensor, wastewater disposal basin liquid level sensor, wastewater flow sensor, atomizing pressure sensor with
And the wastewater treatment full working scope coupler based on multinomial balance model being connected with the sensor;
The flue-gas temperature sensor, flue gas flow sensor are arranged in flue;
The wastewater temperature sensor, wastewater disposal basin liquid level sensor are arranged in desulfurization wastewater pond 6;
The wastewater flow sensor, atomizing pressure sensor are arranged on the water pipe line of magnetic valve and rotational flow atomizer 9
On;
The flue gas waste water adaptive processing system 11 uses Model coupling device and adaptive controller, mode input amount bag
Include flue gas flow Qp, wastewater disposal basin liquid level H, before processing flue gas pressures P1, before processing flue-gas temperature T1, flue gas pressures after processing
P2, flue-gas temperature T after processing2, wastewater pressure P3, wastewater temperature T3, atomizing pressure P4, atomization temperature T4, controlled quentity controlled variable is that atomization is useless
Water-carrying capacity Ql, adjust swirling flow atomizing pump pressure and valve opening, realize Self Adaptive Control.
The rotational flow atomizer 9 is multiple and be tangentially arranged in the hot cigarette of afterbody after air preheater 2 in a manner of eddy flow
On the same section in road 3, it is that desulfurization wastewater is atomized into 5-15 μm of fine droplets that it, which is acted on, by flue gas under bigger serface
Used heat evaporates.
The mode of the eddy flow refers to:The center line of rotational flow atomizer 9 is tangent with an imaginary circle;Where the imaginary circle
Plane is vertical with flow of flue gas direction;The center of circle of the imaginary circle is on the center line of flue;The imaginary diameter of a circle and cigarette
The ratio between the inscribed circle diameter in road is less than 1:2, the desulfurization wastewater for realizing flue gas and rotation at a high speed forms stable rotation in flue
Flow field, dust-laden heat smoke mutually intervolve suction with being atomized fine waste water drop generation, hit and mix.
After dewater treatment, the desulfurization wastewater of separation is stored in desulfurization wastewater pond 6 bottom slurry of desulfurizing tower 5;It is described
Agitator 10 is provided with desulfurization wastewater pond 6, for stirring desulphurization waste water, avoids particulate matter from settling.
The utility model general principle is as follows:
1. desulfurization wastewater is atomized into less than 10 μm of droplet using efficient rotational flow atomizer, while in desulfurization wastewater
Suspension separates under rotational flow atomizer centrifugal action with waste water;
2. the nozzle of rotational flow atomizer is arranged in flue using eddy flow so that with desulfurization wastewater violent volume occurs for flue gas
Inhale, hit and mix, be together threadingly advanced with flue dust in flue, promote particle coalescence.Using point of multiple rotational flow atomizers
Cloth, not only uniform flow field, and avoid drop and wash away wall.
3. utilizing auto-adaptive control theory, by detecting flue-gas temperature and flow in real time, rotational flow atomizer pressure, pass through fortune
Calculate, automatically adjust swirling flow atomizing pump pressure and waterwater entrance aperture, it is ensured that eddy flow range of atomization temperature, which declines, under variable working condition is no more than 2
DEG C and mixing temperature be higher than 5 DEG C of flue dust dew-point temperature.
The utility model swirling flow atomizing desulfurization wastewater coalescence dedusting adaptive processing method, it comprises the following steps:
Step 1:Desulfurization wastewater is pumped into rotational flow atomizer 9 by swirling flow atomizing pump 7, by the high-speed rotational of rotational flow atomizer 9
Centrifuge with after atomization, being sprayed into along circle of contact direction along afterbody heating flue 3, with the flue gas containing dust occur violent volume inhale,
Hit and mix;
Step 2:Solid particulate matter in desulfurization wastewater produces centrifugation, its fine water-spray and dust combination coalescence, quilt
Quick heating, moisture film are rapidly evaporated, and are entered with flue gas in electric cleaner 4;In eddy flow turbulent flow processes, the fine powder in flue gas
The rapid coalescence of desulfurization wastewater particle of dirt and wetted perimeter is into bulky grain, while suspension and soluble pollutants in desulfurization wastewater,
Separate out and grow up in solid form, and together caught by electric cleaner 4, turn into ash content discharge system;
Now, flue gas waste water adaptive processing system 11 passes through the temperature and pressure change before and after real-time detection process flue gas
Gradient, with reference to flue gas flow, the pressure of rotational flow atomizer 9, calculated by model, automatically adjust swirling flow atomizing pump pressure and valve is opened
Degree, the wastewater flow rate of rotational flow atomizer 9 is adjusted into, makes the mixed flue gas temperature drop-out value control of swirling flow atomizing region within 2 DEG C,
And it is higher than 5 DEG C of flue dust dew-point temperature.
The automatic adjusument of flue gas waste water adaptive processing system 11 foundation also includes following parameter:
For a specific embodiment:Under normal temperature, the desulfurization wastewater temperature in desulfurization wastewater pond is 25 DEG C, air preheater 2
The flue-gas temperature of outlet is 160 DEG C;
When temperature drop control is at 2 DEG C or so after being atomized desulfurization wastewater cooling, closed according to the thermal balance in afterbody heating flue 3
System, desulfurization wastewater atomization the ratio between flow and flue gas flow can be obtained, when flue gas flow is 1,200,000 m3During/h, desulfurization wastewater mist
Change Flow-rate adjustment is 8-10m3/h;
Flue-gas temperature T after processing2During less than 158 DEG C, device is automatically adjusted by electromagnetic valve for adjusting aperture, realizes that cigarette temperature is steady
It is fixed;Thus corresponding desulfurization can be automatically adjusted according to different flue gas flow conditions by Model coupling device and Self Adaptive Control to give up
Water atomization amount, realize the adaptive-flow control of desulfurization wastewater treatment system.
As described above, it can preferably realize the utility model.
Embodiment of the present utility model is simultaneously not restricted to the described embodiments, and other are any without departing from of the present utility model
Spirit Essence with made under principle change, modification, replacement, combine, simplification, should be equivalent substitute mode, be included in
Within the scope of protection of the utility model.
Claims (4)
- A kind of 1. swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device, it is characterised in that:Including boiler (1) and flue gas Waste water adaptive processing system (11);The exhanst gas outlet of the boiler (1) is sequentially connected by flue:Air preheater (2), afterbody heating flue (3), electric precipitation Device (4), desulfurizing tower (5);The flue gas of boiler (1) discharge removes by air preheater (2), afterbody heating flue (3), electricity successively Dirt device (4) and desulfurizing tower (5), finally discharged by chimney (8);Multiple rotational flow atomizers (9) are disposed with the afterbody heating flue (3);Desulfurization wastewater pond (6) are provided with by the desulfurizing tower (5), for collecting desulfurization wastewater caused by desulfurizing tower (5);The desulfurization wastewater pond (6) is sequentially connected swirling flow atomizing pump (7), magnetic valve, rotational flow atomizer (9) by water pipe;The flue gas waste water adaptive processing system (11) includes:Flue-gas temperature sensor, flue gas flow sensor, flue gas pressures Sensor, wastewater temperature sensor, wastewater disposal basin liquid level sensor, wastewater flow sensor, atomizing pressure sensor and The wastewater treatment full working scope coupler based on multinomial balance model being connected with the sensor;The flue-gas temperature sensor, flue gas flow sensor are arranged in flue;The wastewater temperature sensor, wastewater disposal basin liquid level sensor are arranged in desulfurization wastewater pond (6);The wastewater flow sensor, atomizing pressure sensor are arranged on the water pipe line of magnetic valve and rotational flow atomizer (9);The flue gas waste water adaptive processing system (11) uses Model coupling device and adaptive controller, and mode input amount includes Flue gas flow Qp, wastewater disposal basin liquid level H, before processing flue gas pressures P1, before processing flue-gas temperature T1, flue gas pressures P after processing2、 Flue-gas temperature T after processing2, wastewater pressure P3, wastewater temperature T3, atomizing pressure P4, atomization temperature T4, controlled quentity controlled variable is atomization waste water stream Measure Ql, adjust swirling flow atomizing pump pressure and valve opening, realize Self Adaptive Control.
- 2. swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device according to claim 1, it is characterised in that:It is described Rotational flow atomizer (9) is multiple and be tangentially arranged in a manner of eddy flow the afterbody heating flue (3) after air preheater (2) On same section, it is that desulfurization wastewater is atomized into 5-15 μm of fine droplets that it, which is acted on, by fume waste heat under bigger serface Evaporation.
- 3. swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device according to claim 2, it is characterised in that:It is described The mode of eddy flow refers to:The center line of rotational flow atomizer (9) is tangent with an imaginary circle;Plane and flue gas where the imaginary circle Flow direction is vertical;The center of circle of the imaginary circle is on the center line of flue;The inscribed circle of the imaginary diameter of a circle and flue Diameter ratio is less than 1:2, the desulfurization wastewater for realizing flue gas and rotation forms stable eddy flow field, dust-laden heat smoke in flue Suction is mutually intervolved with being atomized fine waste water drop generation, hits and mixes.
- 4. swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device according to claim 3, it is characterised in that:It is described Agitator (10) is provided with desulfurization wastewater pond (6), for stirring desulphurization waste water, avoids particulate matter from settling.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107089694A (en) * | 2017-05-25 | 2017-08-25 | 华南理工大学 | A kind of swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device and method |
CN113104917A (en) * | 2021-04-07 | 2021-07-13 | 武汉天和技术股份有限公司 | Automatic spraying and evaporating system for main flue of desulfurization waste water boiler |
-
2017
- 2017-05-25 CN CN201720591385.2U patent/CN207210002U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107089694A (en) * | 2017-05-25 | 2017-08-25 | 华南理工大学 | A kind of swirling flow atomizing desulfurization wastewater coalescence dedusting self-adaptive processing device and method |
CN113104917A (en) * | 2021-04-07 | 2021-07-13 | 武汉天和技术股份有限公司 | Automatic spraying and evaporating system for main flue of desulfurization waste water boiler |
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