CN207918472U - A kind of waste water from power plant device - Google Patents
A kind of waste water from power plant device Download PDFInfo
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- CN207918472U CN207918472U CN201820911100.3U CN201820911100U CN207918472U CN 207918472 U CN207918472 U CN 207918472U CN 201820911100 U CN201820911100 U CN 201820911100U CN 207918472 U CN207918472 U CN 207918472U
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Abstract
The technical issues of waste water from power plant device provided by the utility model is for solving how to realize power plant effluent zero-emission, structure includes：It is provided with the atomization and vaporization tower of smoke distributor and evaporating column tank body；Evaporating column tank body is provided with exhanst gas outlet and ash discharging hole；Smoke distributor is arranged in the top of evaporating column tank body or side wall；Smoke distributor includes flue and smoke deflector；Flue is connected with evaporating column tank inner chamber；It is provided with rotary atomizer installation sleeve in the flue of smoke distributor, rotary atomizer is provided in rotary atomizer installation sleeve；Rotary atomizer is connected to evaporating column tank inner chamber；Concentration tower is provided with waste water input interface, concentrated water output interface, concentration smoke inlet and concentration exhanst gas outlet；Concentrated water output interface is tightly connected by pipeline and rotary atomizer；It concentrates smoke inlet and concentration exhanst gas outlet is used to establish with power-plant flue gas discharge pipe and connect.The utility model has the technological merit that can realize power plant effluent zero-emission.
Description
Technical field
The utility model is related to flue gas desulfurization operation wastewater processing technology fields, more particularly, to a kind of waste water from power plant
Device.
Background technology
It promulgates within 2006《Waste Water From Fire Power Plant Treatment design technical regulation》It proposes：The desulfurization wastewater of thermal power plant is handled
Facility will be separately provided, and pay the utmost attention to treatment for reuse, do not set floss hole, it is necessary to realize wastewater zero discharge.What in April, 2015 promulgated
《Water prevention and cure of pollution action plan》, i.e. " ten, water " requirement, to the year two thousand twenty, National Water Environmental quality obtains interim improvement, dirty
It contaminates serious water body to reduce by a relatively large margin, sewage discharge is even forbidden in some key areas.The publication of Chinese Ministry of Environmental Protection in 2016 is about soliciting
《Thermal power plant's pollution prevention technique policy》With《Thermal power plant's pollutant prevents best practicable techniques guide》Opinion letter, to thermal power plant
The waste water of discharge is distinctly claimed：1. thermal power plant's water prevention and cure of pollution should follow classification processing, multi-purpose water principle, encourage thermal power plant
Realize the not outer row of the recycling of waste water；2. desulfurization wastewater returns preferably after the process such as lime treatment, flocculation, clarification, neutralization
With encouragement realizes the not outer row of desulfurization wastewater using treatment process such as evaporation drying or evaporative crystallizations.Therefore, electric power enterprise is realized
The demand of wastewater zero discharge is more and more urgent.Electric power enterprise in the prior art will recycle to improve the comprehensive utilization ratio of water
The power plant effluents such as water sewerage, reverse osmosis concentrated water are all pooled in desulphurization system, cause desulfurization waste water quality very poor, ingredient is multiple
It is miscellaneous, pollutant kind is more, high salinity, highly corrosive, therefore desulfurization wastewater purification become coal-burning power plant's wastewater treatment link in
The technical issues of being most difficult to processing.Coal range is wide, desulfuration efficiency is high, system availability is high, inhales because it is applicable in for wet desulfurizing process
The advantages such as agent utilization rate height are received, the flue gas desulfurization technique being most widely used at this stage is become.In desulfurization wastewater zero emission requirement
Before proposition, by " three header desulfurization wastewater disposal plants " in the prior art, desulfurization wastewater is usually required by neutralizing, sinking
It forms sediment, after flocculation treatment, clarified device precipitation clarification oxidation disinfection, qualified discharge after PH is adjusted, the sludge warp after clarifier concentration
Filter press is transported outward after being squeezed into filter cake.Though above-mentioned wet desulfurizing process can solve the basic technique problems of electric field wastewater treatment,
Operating procedure is excessively complicated, and processing procedure need to expend a large amount of manpower and materials, causes sewage disposal expense with excessively high, becomes thermoelectricity fortune
Very important financial burden in battalion's management.
Chinese patent CN 106167283A provide a kind of Desulphurization for Coal-fired Power Plant waste water flue spray evaporation zero discharge treatment
Device and method, including heat smoke allocation component, desulfurization wastewater atomizing component and hot secondary air jet component, pass through the equipment
Make salt in desulfurization wastewater crystallize to be precipitated and dry, realizes under high load capacity desulfurization wastewater zero-emission simultaneously in cooperation-removal flue gas
Hg；The technique is affected by unit load in actual use, and treating capacity is limited, and flue-gas temperature is relatively low after air preheater；It is right
In transformation project or the project of installation low-level (stack-gas) economizer, due to shorter using flue length, evaporation is not thorough, can also be further
Lead to dust stratification and corrosion.Chinese patent CN 107089755A provide the desulfurization wastewater zero evaporated with drying tower after a kind of concentration
Exhaust system device, including pretreatment unit, film upgrading unit and air preheater bypass drying unit, make desulfurization by the equipment
Waste water evaporates, and realizes wastewater zero discharge, but the technique, as a result of film upgrading unit, system complex, cost of investment are high, and adopt
Reverse osmosis membrane needs to regularly replace, and operating cost is higher；It requires that pretreatment unit is arranged before film concentrates simultaneously, further
Cost of investment and operating cost are increased, economy is poor, and will produce new waste sludge, and it is larger to promote difficulty.
Therefore it provides a kind of waste water from power plant device, just becomes for solving at least one of above-mentioned technological deficiency
Those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of waste water from power plant device, for solving how to realize power plant effluent zero
The technical issues of discharge.
To achieve the goals above, the utility model provides a kind of waste water from power plant device, including：Rotary atomizer and
Concentration tower；Further include：Atomization and vaporization tower；The atomization and vaporization tower is provided with smoke distributor and evaporating column tank body；The evaporation
The bottom of tower tank body is provided with exhanst gas outlet and ash discharging hole；The smoke distributor be arranged at the top of the evaporating column tank body or
The side wall of evaporating column tank body upper end；The smoke distributor includes flue and the flue gas water conservancy diversion that is arranged in the flue
Plate；The outlet of the flue is connected with the inner cavity of the evaporating column tank body；Rotation is provided in the flue of the smoke distributor
Turn atomizer installation sleeve, the rotary atomizer is provided in the rotary atomizer installation sleeve；The rotary atomizer
Output end be connected with the inner cavity of the evaporating column tank body；The concentration tower is provided with waste water input interface, concentrated water output connects
Mouth, concentration smoke inlet and concentration exhanst gas outlet；The concentrated water output interface is connected by pipeline and rotary atomizer sealing
It connects；The concentration smoke inlet and concentration exhanst gas outlet, which are used to establish with power-plant flue gas discharge pipe, to be connected.
Preferably, the concentration tower is provided with waste water circulating pump and demister；The concentration smoke inlet is connected with supercharging
Wind turbine；The upstream end of the concentration exhanst gas outlet and the booster fan is respectively provided with smoke flow control valve.
Preferably, the flow direction angulation of the smoke deflector and flue gas is adjustable.
Preferably, the arcuation plank that the smoke deflector is fixed at by multi-disc in flue forms.
Preferably, the smoke deflector is made of alloy material.
Preferably, the smoke deflector includes：Flue gas turbulent flow deflector and flue gas impeller guide plate；The flue gas turbulent flow
Deflector, relative to flow of flue gas direction, is arranged in the flue by leaf mosaic mode；The flue gas impeller guide plate
It is fixed at the outer wall of the rotary atomizer installation sleeve, is arranged by fan blade structure form.
Preferably, the evaporating column tank body includes the vertical tube part set gradually along gravity direction and cone bucket portion；The ash discharge
Mouth is arranged in the bottom end of the cone bucket portion；The exhanst gas outlet is arranged in the vertical tube part or bores the side wall of bucket portion.
Preferably, further include waste water pump；The waste water pump is connected by pipeline with the rotary atomizer installation sleeve.
Preferably, the inlet of the flue is provided with the first air valve；The exhanst gas outlet is provided with the second air valve.
Preferably, first air valve and/or the second air valve are plate valve.
Preferably, first air valve and/or the second air valve are electric controlled regulating valve, or to be provided with valve opening automatically controlled for fastening
The air valve of regulating device.
In order to further explain above-mentioned technical proposal, the above-mentioned waste water from power plant device application process of the utility model is such as
Under：Wherein, the power plant of foregoing waste water from power plant device is provided with denitrification apparatus, waste water tank, deduster, boiler
Air-introduced machine and absorption tower.
Specifically, described method includes following steps：
The waste water input interface of the concentration tower is established by the waste water tank being arranged in the first hydraulic pipeline and power plant and is connected
It connects, the setting of first hydraulic pipeline meets is led to the concentration tower by waste water from the waste water tank；
Rotary atomizer is established by the second hydraulic pipeline and concentrated water output interface and is connected, second hydraulic pipeline
Satisfaction is set, the waste water after concentration is led to the rotary atomizer；
The rotary atomizer of the atomization and vaporization tower is established by the waste water tank being arranged in hydraulic pipeline and power plant and is connected,
The setting of the hydraulic pipeline meets is led to the rotary atomizer by waste water from the waste water tank；
Concentration tower is connected in parallel, for connecting the off-gas recovery pipeline between boiler induced-draft fan and absorption tower；Institute
It states concentration smoke inlet and concentrates upstream end and downstream that exhanst gas outlet is connected to the off-gas recovery pipeline；
The flue of smoke distributor is connected with for connecting the flue gas pipeline between the denitrification apparatus and the air preheater
It connects；
The exhanst gas outlet of the atomization and vaporization tower and the pipeline for connecting the deduster flue gas interface are established into connection.
Preferably, the denitrification apparatus is SCR denitration device.
Compared with waste water from power plant device in the prior art, this patent has the advantage that：
1, the operation principle of the utility model is the flue gas pipeline made full use of between connection boiler induced-draft fan and absorption tower
Waste water is made preliminary concentration by interior low-temperature flue gas in concentration tower, is done to the waste water after concentration for assisted atomization evaporating column
Further evaporation atomization.Wherein, the setting of concentration tower can substantially share the operating pressure of atomization and vaporization tower, reduce atomization
Evaporating column reduces the quantity of steam that atomization and vaporization tower generates at work, and mist can be substantially improved to the use demand for the smoke temperature that works
Change the waste water treatment efficiency of evaporating column.Atomization and vaporization tower is rotated using the power plant's high-temperature flue gas for introducing smoke distributor by flowing into
Concentration waste water in atomizer installation sleeve carries out rapid evaporation, is formed by high-temperature steam, original flue gas in evaporating column tank body
The mixture that remaining solid particulate matter is formed after particle and waste water evaporation；Wherein, after small part flue gas particle and waste water evaporate
Remaining solid particulate matter can be deposited on evaporating column tank base, can be excluded through periodic maintenance；Most of flue gas particle and waste water
Remaining solid particulate matter can be transported to deduster with high-temperature steam after evaporation；In deduster, high-temperature steam will not be sent out
Raw food is solidifying, and remaining solid particulate matter can be dispelled efficiently after flue gas particle and waste water evaporation；It is mixed with from what deduster was discharged
High-temperature steam is introduced into smoke stack emission to outside air without dust low stain flue gas after the absorption condensation of absorption tower.Above-mentioned power plant
The setting of wastewater treatment equipment makes full use of the heat of power-plant flue gas that can reach the technique effect of wastewater zero discharge, can be substantially
The energy consumption to be generated when reducing waste water from power plant；Further, above structure can be substituted completely at three header desulfurization wastewaters
Device is managed, the construction cost of power plant can be reduced；In addition, above structure is applied, three header desulfurization wastewaters processing dress is being set
When in the power plant set, moreover it is possible to further obtain the skill for the desulfurization wastewater that efficient process is generated by three header desulfurizing waste water processing devices
Art effect.
2, flow velocity and promotion flue gas of the setting of smoke deflector for alleviating flue gas uniformly mix in flue, in turn
The uniform temperature field of temperature is formed, the vaporization efficency of waste water is helped to improve.
3, smoke deflector is set to arcuation plank, it is formed between smoke deflector and flow of flue gas direction by changing
Different angle, it is turbulent flow both to have facilitated flue gas guiding, moreover it is possible to further reach the technique effect that turbulent flue gas is converted to eddy flow；
It, can be outside rotary atomizer installation sleeve by the way that flue gas turbulent flow deflector and flue gas impeller guide plate are respectively set in flue
Wall forms the uniform temperature field of temperature, and the carburation by evaporation efficiency for importing waste water in evaporating column tank body can be substantially improved.
4, the setting of evaporating column tank body cone bucket portion helps to collect the flue gas particle for being deposited on evaporating column tank interior and give up
The solid particle waste formed after water evaporation.
5, the setting of the first air valve and the second air valve implements maintenance and safeguards to provide for convenience of to waste water from power plant device
Great convenience.
6, the valve opening for the first air valve and the second air valve adds the function of automatically controlled adjusting, and cooperation adjusts rotary atomizer
The flow of inlet water of installation sleeve can reach the technique effect for adjusting evaporating column tank body flue gas output parameter in real time, ensure waste water
It is fully evaporated in evaporating column tank body；Specifically, the exhanst gas outlet smoke temperature control when evaporating column tank body is taken the photograph not less than 115
When family name spends, can reach the technique effect that waste water fully evaporates in evaporating column tank body can by stablizing above-mentioned running parameter
Facilitate and the working efficiency of wastewater treatment equipment is promoted to maximization, and then the treatment effeciency of power plant effluent can be substantially improved.
7, the utility model said program has：Connection relation is simple, and it is less to be related to structural elements, easy to maintain, accounts for
Ground area is small, is suitable for the processing all desulfurization wastewaters in coal-burning power plant, the deduster being just configured with originally by power plant is to generation
Crystal salt carries out recycling capture, is the device and method that can really realize desulfurization wastewater zero-emission.
Description of the drawings
Fig. 1 is waste water of heat-engine plant waste gas cleaning system flow chart before the utility model improves；
Fig. 2 is the structural schematic diagram of waste water from power plant device in the utility model embodiment 1；
Fig. 3 is the structural schematic diagram of concentration tower in the utility model embodiment 1；
Fig. 4 is the structural schematic diagram of smoke deflector in the utility model embodiment 2；
Fig. 5 is evaporating column structural schematic diagram in the utility model embodiment 2；
Fig. 6 is waste water of heat-engine plant waste gas cleaning system flow chart in the utility model embodiment 3.
Specific embodiment
The embodiments of the present invention are described below in detail, since following embodiments are exemplary, it is intended to for explaining
The utility model, and then should not be understood as limiting the present invention.
Shown in Fig. 1, the power-plant flue gas before the utility model improvement and sewage disposal system structure chart.Wherein, it is produced by boiler
Raw high temperature and high pressure flue gas is transported to SCR denitration device through economizer；The high-temperature flue gas flowed out from SCR denitration device is directed to
Air preheater；Cool ambient air in air preheater be blown into boiler in a manner of First air and Secondary Air after high-temperature flue gas heat exchange
For combustion-supporting；The high-temperature flue gas drawn from air preheater is by access deduster dedusting；The industrial dust obtained in dust removal process can quilt
Collect secondary comprehensive utilization；Flue gas after dedusting is sent by boiler induced-draft fan to absorption tower；The slurry circulating pump being arranged in absorption tower
For promoting the slurries in tower to obtain fully absorbing for active ingredient in the circulating cycle；The gypsum slurries formed after precipitation are arranged through gypsum
Go out pump output to gypsum rotational flow station；The mode that the gypsum raw material formed after being dehydrated by two level in gypsum rotational flow station can be stacked is stored up
It deposits, so that down-stream enterprise recycles；The production waste water generated by gypsum rotational flow station is through three header desulfurizing waste water processing devices
It is externally discharged after reason.Waste water through waste water tank discharge in actual use still has certain pollution.
To overcome above-mentioned technological deficiency, the utility model proposes a kind of waste water from power plant device, concrete scheme is as follows：
Embodiment 1：
As shown in Fig. 2, the utility model provides a kind of waste water from power plant device, including：Rotary atomizer 100 and concentration
Tower 400；Further include：Atomization and vaporization tower 300；The atomization and vaporization tower 300 is provided with smoke distributor 310 and evaporating column tank body
320；The bottom of the evaporating column tank body 320 is provided with exhanst gas outlet 321 and ash discharging hole 322；The smoke distributor 310 is set
Set the side wall at the top of the evaporating column tank body 320 or 320 upper end of evaporating column tank body；The smoke distributor 310 wraps
The smoke deflector 312 for including flue 311 and being arranged in the flue 311；The outlet of the flue 311 and the evaporating column tank
The inner cavity of body 320 is connected；Rotary atomizer installation sleeve 200, the rotation are provided in the flue of the smoke distributor 310
Turn to be provided with the rotary atomizer 100 in atomizer installation sleeve 200；The output end 110 of the rotary atomizer 100 and institute
The inner cavity for stating evaporating column tank body is connected；The concentration tower 400 be provided with waste water input interface 410, concentrated water output interface 420,
Concentrate smoke inlet 430 and concentration exhanst gas outlet 440；The concentrated water output interface 420 passes through pipeline and the rotary atomizer
100 are tightly connected；The concentration smoke inlet 430 and concentration exhanst gas outlet 440, which are used to establish with power-plant flue gas discharge pipe, to be connected
It connects.
Further, as shown in figure 3, in one of the utility model optimal technical scheme, the concentration tower 400
It is provided with waste water circulating pump 450 and demister 460；The concentration smoke inlet is connected with booster fan 470；The concentration flue gas
Outlet and the upstream end of the booster fan are respectively provided with smoke flow control valve 480.
Further, in one of the utility model optimal technical scheme, the smoke deflector and flue gas
Flow direction angulation is adjustable.Smoke deflector can be set as being flexibly connected with flue inner wall, is passed through when actual fabrication
The best angulation between every smoke deflector and the flow direction of flue gas is arranged in running parameter in computer simulation flue, into
And reach blocking flue gas flow rate, promote the technique effect of flue gas dispersion mixing, contribute to form the temperature field of stable uniform,
Convenient for flowing into the waste water flash evapn atomization in rotary atomizer installation sleeve, be dissolved in pollutant in waste water can rapidly with
The mode of granulating is detached with vapor.
Further, in one of the utility model optimal technical scheme, the smoke deflector is consolidated by multi-disc
The fixed arcuation plank composition being arranged in flue.
Further, in one of the utility model optimal technical scheme, the smoke deflector is by alloy material
Matter is made.
Further, in one of the utility model optimal technical scheme, the evaporating column tank body includes along weight
The vertical tube part and cone bucket portion that force direction is set gradually；The ash discharging hole is arranged in the bottom end of the cone bucket portion；The exhanst gas outlet
It is arranged in the vertical tube part or bores the side wall of bucket portion.
Further, further include waste water pump in one of the utility model optimal technical scheme；The waste water pump
It is connected with the rotary atomizer by pipeline.The setting of waste water pump by the waste water generated in power plant for being actively delivered to rotation
Turn atomizer installation sleeve, to reach the technique effect of purification of waste water automation.Further, pass through the output of adjusting waste water pump
Power coordinates the work smoke temperature in current smoke distributor, can be adjusted to the output power of waste water pump and meet waste water and fully evaporate
Under the premise of atomization, waste water supply amount is realized and is maximized, and then reached and adjust evaporation fogization work saturation factor in evaporating column tank body
Technique effect.Specifically, the outlet smoke temperature of the smoke outlet by monitoring evaporating column tank base, ensures that it is not low always
In 115 degrees Celsius, it can know whether the waste water in current supply obtains adequately evaporating atomization, in actual use, in flue gas
Under the premise of distributor is maximized into smoke, the outlet smoke temperature of the smoke outlet of evaporating column tank base is stablized 115 to 120
Both it is to maximize by the improved efficiency of purification of waste water under current operating parameters between degree Celsius.
It should be noted that the structure of above-mentioned rotary atomizer be the prior art therefore its detailed construction in the present embodiment not
It further illustrates and repeats.
Embodiment 2：
As shown in figure 4, the present embodiment, on the basis of embodiment 1, the smoke deflector 312 includes：Flue gas turbulent flow is led
Flowing plate 3121 and flue gas impeller guide plate 3122；The flue gas turbulent flow deflector 3121 is in the flue relative to flow of flue gas
Direction is arranged by leaf mosaic mode；The flue gas impeller guide plate 3122 is fixed at the rotary atomizer installation
The outer wall of sleeve 200 is arranged by fan blade structure form.
The setting of flue gas turbulent flow deflector is changed into the flow regime of flue gas in flue disorderly for stopping flue gas flow rate
Stream mode helps to reach flue gas and is uniformly filled in flue, forms the relatively uniform high temperature temperature for meeting carburation by evaporation condition of temperature
Spend field；The setting of flue gas impeller guide plate helps the flue gas of turbulent condition being transformed into eddy flow, and then contributes to high-temperature flue gas
Violent heat occurs by the atomized drop in the tube wall of rotary atomizer installation sleeve, with rotary atomizer installation sleeve to hand over
It changes, the output of rotary atomizer is caused directly to eject the evaporation vapor being atomized and the solid-state castoff crystallized out
Grain.
It should be noted that the connection status of above-mentioned flue gas turbulent flow deflector 3121 and flue gas impeller guide plate 3122 is equal
To be fixedly connected with adjacent component, will not deflect because of smoke-shock, flue gas is stopped in advancing by smoke deflector, before
Corresponding influence is will receive into direction and forward speed.
Further, as shown in figure 5, in one of the utility model optimal technical scheme, the flue enters
It is provided with the first air valve 301 at mouthful；The exhanst gas outlet is provided with the second air valve 302.
Further, in one of the utility model optimal technical scheme, first air valve and/or the second gas
Valve is plate valve.
Further, in one of the utility model optimal technical scheme, first air valve and/or the second gas
Valve is electric controlled regulating valve, or fastening is provided with the air valve of the automatically controlled regulating device of valve opening.
Embodiment 3：
The present embodiment on the basis of the above embodiments, also provides a kind of waste water from power plant method, using as previously described
Waste water from power plant device, the power plant is provided with denitrification apparatus, waste water tank, deduster, boiler induced-draft fan and absorption tower, institute
The method of stating includes the following steps：
The waste water input interface of the concentration tower is established by the waste water tank being arranged in the first hydraulic pipeline and power plant and is connected
It connects, the setting of first hydraulic pipeline meets is led to the concentration tower by waste water from the waste water tank；
Rotary atomizer installation sleeve is established by the second hydraulic pipeline and concentrated water output interface and is connected, described second is defeated
The setting of water lines meets is led to the rotary atomizer installation sleeve by the waste water after concentration；
The rotary atomizer installation sleeve of the atomization and vaporization tower is passed through into the waste water tank that is arranged in hydraulic pipeline and power plant
Connection is established, the setting of the hydraulic pipeline meets is led to the rotary atomizer installation sleeve by waste water from the waste water tank；
Concentration tower is connected in parallel, for connecting the off-gas recovery pipeline between boiler induced-draft fan and absorption tower；Institute
It states concentration smoke inlet and concentrates upstream end and downstream that exhanst gas outlet is connected to the off-gas recovery pipeline；
The flue of smoke distributor is connected with for connecting the flue gas pipeline between the denitrification apparatus and the air preheater
It connects；
The exhanst gas outlet of the atomization and vaporization tower and the pipeline for connecting the deduster flue gas interface are established into connection.
Further, in one of the utility model optimal technical scheme, the denitrification apparatus fills for SCR denitration
It sets.
Specifically, as shown in fig. 6, the waste water of heat-engine plant waste gas cleaning system flow chart that the present embodiment is provided, utilizes cigarette
Gas waste heat is evaporated concentration to desulfurization wastewater, then carries out rapid evaporation to waste water after concentration using high-temperature flue gas, reduces wet
The investment of method desulfurization wastewater zero-emission, operating cost.Wherein, atomization and vaporization tower carries out desulfurization wastewater using power plant's high-temperature flue gas
Rapid evaporation, from SCR denitration device be exported to air preheater entrance before high-temperature flue from draw and connect bypass flue to evaporating column tank body,
By drawing the high-temperature flue gas taken over by the desulfurization wastewater drop evaporation drying after atomization, flue gas and generation after evaporation drying
Particulate matter draws the gas approach for being connected to plant dust catcher by evaporating column tank body exhanst gas outlet, and particulate matter is comprehensive after deduster is collected
It closes and utilizes.Concentration tower is evaporated concentration using the fume afterheat after boiler induced-draft fan to desulfurization wastewater, goes out from boiler induced-draft fan
Draw at mouth to the flue of absorption tower entrance and connect bypass flue to concentration tower booster fan entrance, the concentrated tower booster fan of flue gas increases
Enter concentration tower entrance after pressure, inversely contacted with the drop after atomization in concentration tower, is evaporated the flue gas after concentration through dense
Contracting tower outlet discharge, then draw at the gas approach for being connected to absorption tower.The water inlet of the concentration tower is connected to by water inlet line
Waste water tank.The water inlet for the rotary atomizer installation sleeve being arranged on atomization and vaporization tower is connected to concentration tower by water inlet line
Concentrated water output interface, reality can be arranged drainage pump on above-mentioned water inlet line as needed when building, is delivered to by drainage pump
Evaporating column.For being provided with the evaporating column of stock tank, concentration waste water can store in the stock tank of evaporating column after entering evaporating column, lead to
The waste water circulating pump of pervaporation tower is delivered to evaporating column top, is concentrated by evaporation with smoke contacts, the waste water after concentration is in stock tank
After reaching concentration setting index, the processing of atomization and vaporization system is delivered to by concentrated water delivery pump for constantly enrichment.It needs to illustrate
It is that pending waste water is not limited to, from the outlet of three header desulfurization wastewater disposal plants, can be from overflowing for gypsum rotational flow station
Stream.When wastewater source comes from gypsum rotational flow station overflow, can stopping transport for three header desulfurization wastewater disposal plants has been built,
Three header desulfurization wastewater disposal plants can be no longer arranged in grassroot project.
Further, in one of the utility model optimal technical scheme, concentration tower ontology includes lower part stock tank
Area, middle part atomization and vaporization enrichment region, top mist eliminating zone, stock tank bottom being provided with emptying door, being emptied when for overhauling, concentration tower sheet
Body is made of carbon steel+corrosion-inhibiting coating or makes (such as FRP or PPH etc.) using modified resistant material.
Further, in one of the utility model optimal technical scheme, the waste water being arranged inside concentration tower sprays
Drenching layer is made of FRP materials, and for the pipe network structure of covering concentration tower section, entrance and the waste water cycle of waste water spraying layer pump out
Mouth is connected, and the waste water in stock tank area is delivered to waste water spraying layer；The pipe network terminal of waste water spraying layer is installed with several waste water mists
Change nozzle.
Further, in one of the utility model optimal technical scheme, waste water atomizer is using ceramic material
Matter make, structure be hollow cone or solid wimble structure, meet atomization after waste water grain size 1500 microns to 2500 microns it
Between；The quantity of the installed waste water atomizer of single layer waste water spraying layer, meets the requirement of concentration tower coverage rate 150%~250%.
Further, in one of the utility model optimal technical scheme, go out with concentration tower in waste water spraying layer
It is installed with demister between mouthful, the drop carried in flue gas is collected, to prevent drop downstream equipment surface scale from accumulating；It removes
Day with fog uses baffle plate type structure, material to use FRP or PPH.
Further, in one of the utility model optimal technical scheme, waste water circulating pump uses centrifugal pump, with
It is connected using unit style between waste water spraying layer, flow, lift meet the requirement of waste water atomizer.
Further, in one of the utility model optimal technical scheme, concentration tower is provided with waste water densitometer,
To monitor the density of waste water in concentration tower, when density hit the target, start concentrated water delivery pump, it is defeated to atomization and vaporization tower
Send waste water.
Further, it in one of the utility model optimal technical scheme, is provided in the stock tank of concentration tower lower part
Pulse suspension device, to prevent slurries from depositing.
Further, it in one of the utility model optimal technical scheme, is installed at concentration tower gas approach
Concentration tower booster fan, to overcome flue gas to pass through the required resistance of concentration and evaporation system.
Further, in one of the utility model optimal technical scheme, concentration tower smoke inlet and flue gas go out
The baffle of mouth setting is switching mode, when concentration tower needs maintenance, passes through and closes concentration tower inlet baffle and concentration tower outlet
Baffle is, it can be achieved that on-bne repair.
Further, in one of the utility model optimal technical scheme, the waste water tank can be de- with three headers
Sulphur waste water dis posal device is connected, and can also be connected with gypsum rotational flow station overflow pipe, and the solid content of waste water requires to be not more than in waste water tank
25%.
Further, in one of the utility model optimal technical scheme, the waste water tank setting jacking-type stirs
Device is mixed, to prevent slurries in waste water tank from depositing.
Further, in one of the utility model optimal technical scheme, the waste water tank by waste water pump and
Pipeline is connected with concentration tower.
Further, in one of the utility model optimal technical scheme, the atomization and vaporization tower is steamed by atomization
Send out tower ontology, rotary atomizer, smoke distributor, atomization and vaporization tower gas approach, atomization and vaporization tower exhaust pass, atomization and vaporization
Tower inlet baffle, atomization and vaporization tower outlet damper composition.
Further, in one of the utility model optimal technical scheme, the atomization and vaporization tower ontology includes
Atomization and vaporization tower direct tube section and atomization and vaporization tower cone segments, the atomization and vaporization tower cone segments bottom is equipped with ash discharging hole, for examining
Ash discharge when repairing, direct tube section and conical cylinder section are made of carbon steel.
Further, in one of the utility model optimal technical scheme, rotary atomizer uses high speed centrifugation
Rotary atomizer, rotating speed between 10000~15000rpm, can with variable frequency adjustment, waste water size droplet diameter after atomization 40~
Between 70 microns, the atomizing wheel of rotary atomizer uses alloy material or ceramic material.
Further, in one of the utility model optimal technical scheme, smoke distributor is one group adjustable
The guide vane of angle, is made of alloy material.
Further, in one of the utility model optimal technical scheme, rotary atomizer, smoke distributor and
Gas approach is arranged in the top of atomization and vaporization tower, and exhaust pass is arranged in the cone cylinder bottom of atomization and vaporization tower.
Further, in one of the utility model optimal technical scheme, atomization and vaporization tower gas approach and SCR
The flue of denitrification apparatus to air preheater connects, and relies on the equipment pressure difference of air preheater to draw high-temperature flue gas and is connected to atomizing dry tower.
Further, in one of the utility model optimal technical scheme, atomization and vaporization tower inlet baffle is to adjust
Nodal pattern baffle exports setting smoke temperature on-line monitoring instrument in atomization and vaporization tower, can be according to atomization and vaporization tower exit gas temperature tune
Baffle position is saved, and then controls the flue gas flow entered in atomization and vaporization tower or the wastewater flow for entering rotary atomizer.
Further, in one of the utility model optimal technical scheme, atomization and vaporization tower exhaust pass and sky
Pre- device is exported to the flue connection of deduster entrance, and the vapor, particulate matter after atomization and vaporization enter deduster purification with flue gas
Processing.
Further, in one of the utility model optimal technical scheme, atomization and vaporization tower outlet damper is to open
Pass type baffle, when atomization and vaporization tower needs maintenance, by closing gas approach baffle and exhaust pass baffle, it can be achieved that online
Maintenance.
Further, in one of the utility model optimal technical scheme, the water inlet of the rotary atomizer
It is connected with the concentrated water of concentration tower conveying pump discharge, the solid content of waste water requires to be not more than 25% in concentration tower.
Compared with waste water from power plant device in the prior art, this patent has the advantage that：
1, the utility model is adaptable for waste water solid content to be treated, solid content 25% can be handled hereinafter,
Waste water between pH value 5~8；For having built sewage pretreatment device (three header desulfurization wastewater disposal plants etc.),
Can stop transport sewage pretreatment device, reduce operating maintenance expense；For grassroot project, Wastewater Pretreatment dress can be directly omitted
It sets, reduces project cost.
2, utility model device concentration tower uses hollow-spraying-tower structure, and concentration tower tower internals are few, and resistance is low, failure rate
It is low.
3, the utility model carries out the desulfurization wastewater of atomization as heat source using the flue gas of power plant's air preheater entrance quick
Evaporation, flue-gas temperature is high, and evaporation time is short, and the crystalline particle that the drop and evaporation that desulfurization wastewater can be made to be atomized generate is entering
Rapid draing before deduster avoids corrosion and scaling of the grain of salt crystals to upstream device of surface moisture, the risk of contamination.
4, the utility model be utilized respectively low-temperature flue gas after boiler induced-draft fan and power plant's air preheater entrance high-temperature flue gas
Heat, gradient is concentrated and is evaporated to desulfurization wastewater, more energy saving；
5, the utility model inlet porting baffle and outlet damper are, it can be achieved that on-bne repair, to the safe and reliable fortune of host
Row has no adverse effects.
6, the utility model has automatic regulation function, can adjust feed water flow according to the exit gas temperature of atomization and vaporization tower
Amount or the flue gas flow for entering evaporating column ensure waste water evaporating completely.
7, the utility model flow is simple, take up little area, investment cost is few, operating cost is low, without adding any pretreatment
Medicament, the deduster being just configured with originally by power plant carry out recycling capture to the crystal salt of generation, do not generate any byproduct,
It is the real device and method for realizing desulfurization wastewater zero-emission suitable for handling all desulfurization wastewaters in coal-burning power plant.
The various embodiments described above are only preferred embodiments of the present invention, in the art, every to be based on this reality
With the changes and improvements in new technique scheme, should not exclude except the scope of protection of the utility model.
Claims (9)
1. a kind of waste water from power plant device, including：Rotary atomizer and concentration tower；It is characterized in that, further including：Atomization and vaporization
Tower；The atomization and vaporization tower is provided with smoke distributor and evaporating column tank body；The bottom of the evaporating column tank body is provided with flue gas
Outlet and ash discharging hole；The side at the top of the evaporating column tank body or evaporating column tank body upper end is arranged in the smoke distributor
Wall；The smoke distributor includes flue and the smoke deflector that is arranged in the flue；The outlet of the flue with it is described
The inner cavity of evaporating column tank body is connected；Rotary atomizer installation sleeve, the rotation are provided in the flue of the smoke distributor
Turn to be provided with the rotary atomizer in atomizer installation sleeve；The output end of the rotary atomizer and the evaporating column tank body
Inner cavity be connected；The concentration tower is provided with waste water input interface, concentrated water output interface, concentration smoke inlet and concentration flue gas
Outlet；The concentrated water output interface is tightly connected by pipeline and the rotary atomizer；The concentration smoke inlet and concentration
Exhanst gas outlet is used to establish with power-plant flue gas discharge pipe and connect.
2. waste water from power plant device according to claim 1, which is characterized in that the concentration tower is provided with waste water cycle
Pump and demister；The concentration smoke inlet is connected with booster fan；It is described concentration exhanst gas outlet and the booster fan it is upper
Trip end is respectively provided with smoke flow control valve.
3. waste water from power plant device according to claim 1, which is characterized in that the stream of the smoke deflector and flue gas
Dynamic direction angulation is adjustable.
4. waste water from power plant device according to claim 3, which is characterized in that the smoke deflector includes：Flue gas
Turbulent deflector and flue gas impeller guide plate；The flue gas turbulent flow deflector in the flue relative to flow of flue gas direction,
It is arranged by leaf mosaic mode；The flue gas impeller guide plate is fixed at the outer of the rotary atomizer installation sleeve
Wall is arranged by fan blade structure form.
5. waste water from power plant device according to claim 1, which is characterized in that the evaporating column tank body includes along gravity
The vertical tube part and cone bucket portion that direction is set gradually；The ash discharging hole is arranged in the bottom end of the cone bucket portion；The exhanst gas outlet is set
Set in the vertical tube part or bore the side wall of bucket portion.
6. waste water from power plant device according to claim 1, which is characterized in that further include waste water pump；The waste water pump
It is connected with the rotary atomizer by pipeline.
7. waste water from power plant device according to claim 1, which is characterized in that the inlet of the flue is provided with
One air valve；The exhanst gas outlet is provided with the second air valve.
8. waste water from power plant device according to claim 7, which is characterized in that first air valve and/or the second gas
Valve is plate valve.
9. waste water from power plant device according to claim 7, which is characterized in that first air valve and/or the second gas
Valve is electric controlled regulating valve, or fastening is provided with the air valve of the automatically controlled regulating device of valve opening.
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| CN201820911100.3U CN207918472U (en) | 2018-06-13 | 2018-06-13 | A kind of waste water from power plant device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184932A (en) * | 2021-04-26 | 2021-07-30 | 武汉天空蓝环保科技有限公司 | Utilize flue gas evaporative concentration device and desulfurization effluent disposal system |
| CN115043531A (en) * | 2022-08-15 | 2022-09-13 | 杭州领成节能科技有限公司 | Operation detection method and device for power plant wastewater treatment system |
-
2018
- 2018-06-13 CN CN201820911100.3U patent/CN207918472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184932A (en) * | 2021-04-26 | 2021-07-30 | 武汉天空蓝环保科技有限公司 | Utilize flue gas evaporative concentration device and desulfurization effluent disposal system |
| CN115043531A (en) * | 2022-08-15 | 2022-09-13 | 杭州领成节能科技有限公司 | Operation detection method and device for power plant wastewater treatment system |
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