CN206680211U - A kind of desulfurizing waste water processing device and its control system - Google Patents
A kind of desulfurizing waste water processing device and its control system Download PDFInfo
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- CN206680211U CN206680211U CN201720456590.8U CN201720456590U CN206680211U CN 206680211 U CN206680211 U CN 206680211U CN 201720456590 U CN201720456590 U CN 201720456590U CN 206680211 U CN206680211 U CN 206680211U
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Abstract
The utility model discloses a kind of desulfurizing waste water processing device and its control system, belongs to desulfurization wastewater process field.Including waste water system, phase transformation generator and hot air units, outlet is provided with the top of phase transformation generator, phase transformation generator bottom is provided with solids outlet port, and phase transformation generator connects with hot air units, and waste water system connects with the atomizer in phase transformation generator.Water pump, regulating valve and the flowmeter of controller and waste water system, compressed air unit, temperature-detecting device, blower fan and heat collector electrically connect.The temperature of controller control phase transformation generator exports is higher than more than 10 DEG C of dew-point temperature, and hot air temperature is more than 80 DEG C.The present invention solves the problems, such as that breaking original desulfurization during flue handles desulfurization wastewater balances and cause equipment corrosion, it is achieved thereby that the no pollution of desulfurization wastewater and zero-emission.
Description
Technical field
The utility model belongs to desulfurization wastewater process field, more specifically to a kind of desulfurizing waste water processing device and
Its control system.
Background technology
Coal electricity chemical enterprise is applied during desulfurization technology in production can produce a certain amount of desulfurization wastewater, desulfurization wastewater composition
Complexity, mainly contain high concentration suspended matter, oversaturated sulphite, soluble chloride and fluoride and various heavy
Impurity, wherein being much the first pollutant for requiring strictly to control in national environmental standard.Therefore, it is necessary to enter to desulfurization wastewater
The strict processing of row, can be only achieved desulfurization wastewater " zero-emission " standard of national requirements.The difficulty in treatment of desulfurization wastewater mainly has water
Matter, water are influenceed greatly by coal-fired, desulphurization system moisturizing and desulfurization operation condition, and variation water quality scope is very big；Concentration of suspension is high,
Fine particle ratio is big；Silicon, magnesium, organic matter isoconcentration are high, and calcium sulfate degree of supersaturation is high, and fouling tendency is strong.Desulfurization wastewater tradition
Complex treatment process, operation operational ton is big, is not easy to automatically control, most power plant's operation results are undesirable, and the waste water after processing is still
So chlorion containing higher concentration is stronger to the corrosivity of metal and equipment.
Common FGD desulfurization wastewater treatment systems are " three header processing+clarification " technique, and three headers include neutralizing case, reaction
Case and flocculation tanks；The desulfurization wastewater that FGD eddy flows are stood out carries out aeration in waste water buffer pool and is well mixed, and then passes through waste water
Three headers are pumped to, feeding lime breast or sodium hydroxide in three headers and in case, quick stirring make the desulfurization of original acidity
Waste water is in alkalescence (pH is controlled 9.0~9.5), and most of heavy metal forms sl. sol. hydroxide and sunk from waste water during this
Shallow lake comes out, and neutralizes water outlet in case and, from reaction chamber is flow to, adds organic sulfur and flocculating agent in reaction chamber, it is impossible to hydroxide shape
The residual heavy metal of formula precipitation is removed in the form of sulfide precipitation, and reaction chamber water outlet enters flocculation tanks, is added in flocculation tanks
Flocculation aid, flocculation reaction is carried out under slow-speed of revolution stirring, promotes flco further to grow up, flocculation tanks water outlet gravity flow enters clarification
Device, waste water flco are further grown up in clarifier, and carry out precipitation separation by top swash plate, and top clear water is adjusted through acid adding
Gravity flow enters clear water reserviors after pH to 6~9, and clarifier sludge delivers to filter press and carries out press filtration.
The technique waste water of this pretreatment is only capable of handling suspension, but can not handle the chlorion in desulfurization wastewater, also not
Can directly it discharge, it is necessary to which advanced treating, after advanced treating uses above-mentioned pretreatment at present, then softens+membrane distillation+evaporative crystallization group
Handling process is closed, technology investment height (waste water per ton makes an investment in ten thousand yuan/ton of waste water of 70-200), high energy consumption, operating cost height is (often
Ton wastewater treatment is taken in 130-220 members/t waste water), and easily cause systemic breakdown the problems such as equipment blocking, corrosion and scaling.
Foreign countries also have uses flue facture, i.e., after desulfurization wastewater being sprayed onto into air preheater, the cigarette before electric precipitation on a small quantity
Allow waste water to evaporate on road, the technique not only breaks original desulfurization wastewater balance because waste water enters in desulphurization system, and chlorine from
Son can produce enrichment, it is necessary to increase more wastewater treatment capacities, it is also possible to corrode upstream device.
Chinese invention patent, publication number：105417604A, publication date：On March 23rd, 2016, disclose using more than flue gas
The method and device of desulfurization wastewater is heat-treated, is specifically included：Boiler, air preheater, electric cleaner, desulfurizing tower and chimney, its feature
It is, an evaporation concentration device is set between electric cleaner and desulfurizing tower；In the bottom of evaporation concentration device, concentration is set
Desulfurization wastewater collecting pit；In desulfurization wastewater pond and evaporation concentration device, pipeline and water pump II are set；Air preheater and deduster it
Increase nozzle in Jian Yan lanes, pipeline and water pump I are set between nozzle and concentration desulfurization wastewater collecting pit.The present invention's is beneficial
Have the technical effect that and save chemicals used by Conventional waste water processing method；Overcome existing fume afterheat evaporation technique spray
The problems such as mist amount is big, and deduster leading portion flue-gas temperature is low, water vapour content is high, pole plate of dust remover is hardened, reaches truly
Desulfurization wastewater zero-emission.Its weak point is：(1) in the technique desulfurization wastewater enter in desulphurization system can break it is original de-
Sulfur balance, and chlorion is also easy to produce enrichment, corrosion pipeline, thus need to increase more wastewater treatment capacities, with flushing pipe
Wall；(2) chlorion is entered in desulfurization wastewater by combustion system with flue gas after handling, and cl concn can not reduce, and directly affect de-
Sulphur efficiency, corrode desulphurization plant, reduce the desulphurization plant life-span；(3) directly desulfurization wastewater being passed through in cigarette lane, smoke content is big,
Flying dust easily deposits, and easily causes the blocking of cigarette lane；(4) desulfurization wastewater drop needs the cigarette lane evaporative crystallization of certain length, and actual
Cigarette lane is shorter, and the evaporation of desulfurization wastewater drop is incomplete, and unevaporated desulfurization wastewater drop bonds with the flying dust in flue gas, thus pole
Yi Duiyan lanes and upstream device, for example, electric cleaner etc. causes to corrode.
Chinese invention patent, publication number：105692745A, publication date：On June 22nd, 2016, disclose a kind of hybrid
Flue gas is evaporated desulfurization wastewater device and method, specifically includes：Gaseous mixture is evaporated desulfurization portion and the quenched desulfurization portion of gas, and gaseous mixture steams
Dry desulfurization portion includes drying tower, Wastewater Pretreatment pipeline and mixed gas pipeline, and drying tower passes through offgas duct and flue main pipe
Lead to, gaseous mixture pipeline includes supervisor, the first branch pipe and leads to outside air and flow through the second of the air preheater
The outside air of branch pipe, flue gas and heating is mixed and fed into drying tower and desulfurization wastewater is carried out to be evaporated processing.Effectively solves mixing
The wall sticking phenomenon that gas occurs in evaporation drying desulfurization wastewater, it is ensured that drying tower service life, moreover it is possible to effectively reduce outer because using
Influence of boundary's air to boiler efficiency, effectively improves desulfuration efficiency, moreover it is possible to reduces desulfurization wastewater amount, and then mitigates evaporation operation
Live load, reduce the thermal losses for evaporating desulfurization wastewater.Its weak point is：(1) atomizer is arranged on outside drying tower
Portion, desulfurization wastewater form drop through atomization, drop easily diffusion pollution environment in atmosphere；(2) flue gas and preheated air
The mixed gas of formation and the desulfurization wastewater of atomization react, and react the smaller solid particulate matter of generation easily with gases such as vapor
Flue main pipe is entered by offgas duct, thus easily causes the blocking of flue main pipe；(3) small solid particulate matter enters flue and downstream is set
It is standby, the abrasion of flue and upstream device is easily caused, so as to influence service life of equipment；(4) if temperature is relatively low in flue, vapor
Condense, dissolving forms salting liquid to solid particulate matter in the vapor of condensation again, and salting liquid is easily set to flue or downstream
It is standby to cause to corrode.
The content of the invention
1st, to solve the problems, such as
Enter for waste water in existing desulfurization wastewater processing procedure in desulphurization system, broken original desulfurization and balanced and cause
The problem of equipment corrosion, the present invention provide a kind of desulfurizing waste water processing device and its control system.It will not enter original system,
Desulphurization system is had no effect.
2nd, technical scheme
To solve the above problems, the present invention adopts the following technical scheme that：
A kind of desulfurizing waste water processing device, including waste water system, in addition to phase transformation generator and hot air units, the phase
Become at the top of generator and be provided with outlet, the phase transformation generator bottom is provided with solids outlet port, the phase transformation generator and
Hot air units connect, and the waste water system connects with the atomizer in phase transformation generator.
Desulfurization wastewater carries out matter, heat exchange generation sulfur-bearing, chlorine after atomizer is atomized in phase transformation generator with hot-air
Solid particle, solid particle directly fall into phase transformation generator bottom solids outlet port carry out centralized recovery, vapor then by
Phase transformation generator top exit is discharged.
Preferably, in addition to compressed air unit, the compressed air unit connect with the atomizer, compressed air with
Desulfurization wastewater mixing further promotes desulfurization wastewater atomization, and so as to improve, desulfurization wastewater drop and hot gas carry out matter, heat is handed over
The efficiency changed.
Preferably, the hot air units include heat collector, and the heat collector includes passage one and passage two, and passage one enters
Mouth connects with high-temperature gas (such as industrial high temperature flue gas), and the outlet of passage one connects with absorption tower, and the entrance of passage two is passed through normal temperature sky
Gas, the outlet of passage two connect with the phase transformation generator.
Heat collector is heated normal temperature air using industrial high temperature flue gas, and hot-air enters de- with atomization after phase transformation generator
Matter thermal response occurs for sulphur waste water.
Preferably, described waste water system includes waste water tank, water pump, regulating valve and flowmeter, and waste water tank occurs with phase transformation
Water pump, regulating valve and flowmeter are sequentially provided with the pipeline of device atomization device connection, by governor valve control desulfurization wastewater flow,
And then control the flue-gas temperature of reaction generation in phase transformation generator.
Preferably, in addition to gas-solid separator and blower fan, described gas-solid separator front end and the outlet of phase transformation generator
Connection, the entrance of passage two of the heat collector, the connectivity part of the heat collector and the phase transformation generator, the phase transformation generator
Blower fan is provided with position at least one in the connectivity part of the gas-solid separator and the rear end of the gas-solid separator.
Normal temperature air is incorporated into heat collector and preheated by blower fan, while blower fan is sent out into phase transformation warmed-up air
Facilitation is also played in raw device.In addition, blower fan is additionally aided the mixed of the vapor after mass heat transfer and solid small particles
Compound, it is brought into by wind action out of phase transformation generator in gas-solid separator, while promotes gas-solid separator by vapor
Discharge.
A kind of control system of desulfurizing waste water processing device, including water pump, in addition to controller, regulating valve, flowmeter, pressure
Contracting air element, temperature-detecting device, blower fan and heat collector, described controller and water pump, regulating valve, flowmeter, compression are empty
Gas unit, temperature-detecting device, blower fan and heat collector electrically connect.
The amount that controller control hot-air, desulfurization wastewater and compressed air enter in phase transformation generator, ensure that atomization
Desulfurization wastewater fully contacts with hot-air and carries out matter thermal response formation vapor and solid particle.
Preferably, temperature-detecting device is provided with the phase transformation generator, is controlled to adjust in real time according to the temperature of detection
Valve opening and the air supply of compressed air unit input, and then ensure the desulfurization wastewater and the cigarette of hot gas reaction generation of atomization
Temperature degree is all the time more than dew-point temperature.
Preferably, described temperature-detecting device is separately positioned at phase transformation generator exports, and the phase transformation occurs
Device and hot air units connectivity part.
The steam temperature value of the temperature-detecting device monitoring of phase transformation generator exports feeds back to controller, another temperature
Detection arrangement monitors hot air temperature, controller controls to adjust the flow of valve, so that steam temperature is higher than 10 DEG C of dew-point temperature
More than, prevent from condensing, and ensure that hot air temperature is higher than 80 DEG C, so that desulfurization wastewater is undergone phase transition.
A kind of control method of desulfurizing waste water processing device, after controller control water pump is opened, controller control compression is empty
Gas unit is opened, and compressed air is passed through into phase transformation generator, and controller control blower fan is opened, and it is empty that normal temperature is sent into heat collector
Gas, control industrial high temperature flue gas are passed into heat collector, heat normal temperature air, and controller receives the temperature of temperature-detecting device feedback
Angle value, compared with dew-point temperature, the aperture of valve is controlled to adjust, and then monitor the numerical value of flowmeter so that phase transformation generator goes out
Mouthful temperature higher than more than 10 DEG C of dew-point temperature so that heat collector be passed into hot air temperature in phase transformation generator 80 DEG C with
On.
Preferably, described temperature-detecting device is separately positioned at phase transformation generator exports, and the phase transformation occurs
Device and hot air units connectivity part are to prevent that temperature is too low and dew condensation phenomenon occurs in phase transformation generator.
3rd, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) desulfurizing waste water processing device provided by the invention, the atomizer that desulfurization wastewater is set through phase transformation generator top
Atomization generation drop, drop are sprayed by phase transformation generator, and hot gas enters phase transformation by the hot gas inlet of phase transformation generator bottom
Device, hot gas and desulfurization wastewater droplets mixing simultaneously carry out matter, heat exchange, desulfurization wastewater drop thermal dehydration, formed after being evaporated sulfur-bearing,
The solid particle of chlorine, solid particle directly fall into the solids outlet port of phase transformation generator bottom under gravity, and vapor exists
Discharged under blower fan blasting action by phase transformation generator top exit, the matter of desulfurization wastewater and hot gas, heat exchanging process need not enter
Enter flue, thus desulphurization reaction balance will not be destroyed, it also avoid that flue is caused to corrode, and desulfurization wastewater reacts with hot gas
The solid particle of generation is easy to collect recycling, so as to reach the purpose for making full use of resource；
(2) desulfurizing waste water processing device provided by the invention, desulfurization wastewater are drawn into atomizer through centrifugal pump, and compression is empty
Gas unit provides compressed air for atomizer, and compressed air mixes with desulfurization wastewater further promotes desulfurization wastewater atomization, mist
Metaplasia into liquid-drop diameter it is smaller, be more evenly distributed, carry out matter, heat exchange so as to promote desulfurization wastewater drop and hot gas；
(3) desulfurizing waste water processing device provided by the invention, steam outlet and gas solid separation at the top of phase transformation generator
Device connects, and the big solid particle generated in phase transformation generator directly drops into phase transformation generator bottom solids outlet port, small solid
Body particle and steam enter gas-solid separator under blower fan blasting action, and blower fan will draw air after starting into gas-solid separator
Going out, small solid particle falls into gas-solid separator ash discharging hole under gravity, and vapor is discharged under fan action by exhaust outlet,
So as to be sufficiently separated the solid particle of recovery generation, the outer pollution discharging environment of less solid particle is avoided；
(4) desulfurizing waste water processing device provided by the invention, is provided with regulating valve and flowmeter between water pump and atomizer,
Temperature-detecting device is provided with phase transformation generator, by governor valve control desulfurization wastewater flow, and then is controlled in phase transformation generator
The flue-gas temperature of generation is reacted, so that it is guaranteed that the desulfurization wastewater of atomization reacts the flue-gas temperature of generation all the time in dew point temperature with hot gas
More than degree, condensation and dewfall occurs so as to effectively prevent flue gas, so that vapor can be smoothly discharged to by hot wind action
Outside phase transformation generator；
(5) desulfurizing waste water processing device provided by the invention, high-temperature gas, such as industrial high temperature flue gas, such as desulfurization are utilized
Preceding flue gas, gathers materials on the spot and air is preheated, and preheated air enters phase transformation generator and the desulfurization wastewater of atomization reacts
Solid particle is generated, the present apparatus both saves the energy, reduces the temperature of flue gas before desulfurization again, and lower temperature is provided for desulfurization
Degree, be advantageous to improve desulfuration efficiency, reduce technique water consumption；
(6) normal temperature air is introduced in heat collector and preheated by desulfurizing waste water processing device provided by the invention, blower fan, is passed through
The air of preheating is blasted progress matter thermal response in phase transformation generator in the presence of blower fan, and blower fan is endlessly sent out to phase transformation
Hot-air is blasted in raw device, so as to help, by the vapor and the mixture of solid small particles after mass heat transfer, to blast sky
It is brought into the presence of the flowing of gas out of phase transformation generator in gas-solid separator, the air in phase transformation generator constantly enters
Gas-solid separator, vapor is discharged so as to promote gas-solid separator；
(7) control system of desulfurizing waste water processing device provided by the invention, examined according to the temperature inside phase transformation generator
The temperature for surveying device detection controls to adjust valve opening and the air supply of compressed air unit input in real time, and then ensures mist
The desulfurization wastewater of change reacts the flue-gas temperature generated all the time more than dew-point temperature with hot gas, thus the automaticity of the present apparatus
It is higher；
(8) control system of desulfurizing waste water processing device provided by the invention, the hot-air of hot air units output is with leading to
Cross atomizer atomization after waste water system desulfurization wastewater mix in phase transformation generator occur mass heat transfer, formed vapor with
Solid particle, vapor are discharged by phase transformation generator top exit, and solid particle is arranged by the solid of phase transformation generator bottom
Outlet discharge；Phase transformation generator provides place for mass heat transfer, and after mass heat transfer, desulfurization wastewater is undergone phase transition, the liquid phase of script
It has been do not existed that, the hot blast that hot-air is formed takes vapor out of, and solid particle is fallen by Action of Gravity Field, realizes the ring of desulfurization wastewater
Protect energy-efficient treatment；Technological process is simple, realizes no pollution zero-emission；The desulfurization wastewater pipeline connected except waste water system with atomizer
Outside, remaining process whole process dry state, the possibility of equipment corrosion is reduced；
(9) control system of desulfurizing waste water processing device provided by the invention, compressed air unit are passed into atomizer,
Enhance desulfurization wastewater atomizing effect so that desulfurization wastewater forms more small drop, so as to hot-air and desulfurization wastewater
More abundant matter thermal response occurs for drop, is evaporated so that the moisture in desulfurization wastewater more thoroughly forms vapor；
(10) control method of the control system of desulfurizing waste water processing device provided by the invention, after mass heat transfer, desulfurization
Impurity and salinity crystallization generation solid particle, solid particle in waste water include bulky grain solid and solid small particles, bulky grain
Solid refers to the solid particle by hot blast and Action of Gravity Field whereabouts, and solid small particles refer to the solid particle risen, bulky grain
Solid is fallen on phase transformation generator solids outlet port, vapor and solid small particles as hot blast occurs from phase transformation by Action of Gravity Field
Device outlet enters gas-solid separator, and gas-solid separator separates vapor and solid small particles, and blower fan is by gas-solid separator
The vapor separated is discharged by wind action；
(11) control method of the control system of desulfurizing waste water processing device provided by the invention, stirring is provided with waste water tank
Device, being precipitated to prevent desulfurization wastewater, form the desulfurization wastewater of even in liquid phase distribution, water pump pumps out the desulfurization wastewater in waste water tank,
By desulfurization wastewater pipeline to the atomization device of phase transformation generator, governor valve control desulfurization wastewater on desulfurization wastewater pipeline
Flow, flowmeter are used for the flow for observing desulfurization wastewater, pass through the flow prison of the flow control action of regulating valve, and flowmeter
Survey acts on, and is controlled in conjunction with the temperature value in phase transformation generator, prevents the vapor after mass heat transfer in phase transformation generator
Interior condensation, so that vapor can be smoothly discharged to outside phase transformation generator by hot wind action；
(12) control method of the control system of desulfurizing waste water processing device provided by the invention, in heat collector, industry
Normal temperature air is heated to 80 DEG C of hot-airs formed above by high-temperature flue gas, and hot-air is passed into phase transformation generator, to be matter
Thermal response provides temperature conditionss；
(13) control method of the control system of desulfurizing waste water processing device provided by the invention, controller control water pump
Open and close, realize the control that phase transformation whether is participated in desulfurization wastewater, controller controls to adjust the stream of valve regulation desulfurization wastewater
Amount, the real-time traffic of the desulfurization wastewater of flowmeter monitoring feed back to controller, the pressure that controller control compressed air unit is passed through
The flow value of contracting air, controller control compressor flow and the hot air flowrate that is passed through of heat collector, temperature-detecting device is by phase transformation
Temperature value in generator feeds back to controller, so as to controller combination flowmeter feedback desulfurization wastewater real-time flow data,
And then the flow of valve regulation desulfurization wastewater is controlled to adjust, prevent the vapor after mass heat transfer from being condensed in phase transformation generator, with
Just vapor can be smoothly discharged to outside phase transformation generator by hot wind action；
(14) control method of the control system of desulfurizing waste water processing device provided by the invention, temperature-detecting device monitoring
Temperature in phase transformation generator, and controller is fed back to, the flow of the governor valve control desulfurization wastewater on desulfurization wastewater pipeline, stream
Gauge is used for the flow for observing desulfurization wastewater, is acted on by the flow monitoring of the flow control action of regulating valve, and flowmeter,
Prevent the too low vapor caused after mass heat transfer of temperature from being condensed in phase transformation generator, so that vapor can pass through hot-air
The hot blast effect formed is smoothly discharged to outside phase transformation generator.
Brief description of the drawings
Fig. 1 is desulfurizing waste water processing device schematic diagram.
In figure：1st, heat collector；2nd, phase transformation generator；3rd, gas-solid separator；4th, blower fan；5th, waste water tank；6th, water pump；7th, adjust
Valve；8th, flowmeter；9th, atomizer；10th, compressed air unit.
Embodiment
The present invention is further described below with reference to specific embodiment.
Embodiment 1
Such as Fig. 1, a kind of desulfurizing waste water processing device, including waste water system, in addition to phase transformation generator 2 and hot-air list
Member, the top of the phase transformation generator 2 are provided with outlet, and the bottom of phase transformation generator 2 is provided with solids outlet port, the phase
Become generator 2 to connect with hot air units, the waste water system connects with the atomizer 9 in phase transformation generator 2.
The hot-air of hot air units output by the desulfurization wastewater of the waste water system after the atomization of atomizer 9 in phase transformation with being sent out
Mass heat transfer occurs for mixing in raw device 2, forms vapor and solid particle, and vapor is arranged by the top exit of phase transformation generator 2
Go out, solid particle is discharged by the solids outlet port of the bottom of phase transformation generator 2；Phase transformation generator 2 provides place for mass heat transfer,
After mass heat transfer, desulfurization wastewater is undergone phase transition, and the liquid phase of script has not existed, and the hot blast that hot-air is formed takes vapor out of,
Solid particle is fallen by Action of Gravity Field, realizes the environmental protection and energy saving processing of desulfurization wastewater；Technological process is simple, realizes no pollution zero-emission
Put；In addition to the desulfurization wastewater pipeline that waste water system connects with atomizer 9, remaining process whole process dry state, by the possibility of equipment corrosion
Property reduce.
Embodiment 2
Such as Fig. 1, a kind of desulfurizing waste water processing device of the present embodiment, compared with Example 1 compared with addition to compressed air list
Member 10, the compressed air unit 10 connects with the atomizer 9.
Compressed air unit 10 is passed into atomizer 9, enhances desulfurization wastewater atomizing effect so that desulfurization wastewater is formed
More small drop, so that more sufficient matter thermal response occurs for the drop of hot-air and desulfurization wastewater, so as to desulfurization wastewater
In moisture more thoroughly formed vapor evaporate.
Embodiment 3
Such as Fig. 1, a kind of desulfurizing waste water processing device of the present embodiment, further change on the basis of embodiment 1 or 2
Enter, in addition to gas-solid separator 3 and blower fan 4, the described front end of gas-solid separator 3 and the outlet of phase transformation generator 2 are described
The rear end of gas-solid separator 3 connected with blower fan 4.
After mass heat transfer, impurity and salinity crystallization generation solid particle, solid particle in desulfurization wastewater include bulky grain
Solid and solid small particles, bulky grain solid refer to the solid particle by hot blast and Action of Gravity Field whereabouts, and solid small particles are
Referring to and the solid particle that rises together of vapor, bulky grain solid is fallen on the solids outlet port of phase transformation generator 2 by Action of Gravity Field,
Vapor and solid small particles enter gas-solid separator 3 as hot blast exports from phase transformation generator 2, and gas-solid separator 3 steams water
Gas separates with solid small particles, and blower fan 4 discharges the vapor that gas-solid separator 3 is separated by wind action.
Described one end of blower fan 4 can also be connected with gas-solid separator 3, the other end of blower fan 4 goes out with phase transformation generator 2
Mouth connection；Blower fan 4 is by the vapor and the mixture of solid small particles after mass heat transfer, by wind action from phase transformation generator
It is brought into 2 in gas-solid separator 3, while promotes gas-solid separator 3 to discharge vapor.
The porch of passage two of heat collector 1, the connectivity part of the heat collector 1 and the phase transformation generator 2, the phase transformation are sent out
Raw device 2 is provided with position at least one in the connectivity part of the gas-solid separator 3 and the exhaust ports of the gas-solid separator 3
Blower fan 4.
Embodiment 4
Such as Fig. 1, a kind of desulfurizing waste water processing device of the present embodiment, in the base of any one technical scheme of embodiment 1-3
It is further improved on plinth, described waste water system includes waste water tank 5, water pump 6, regulating valve 7 and flowmeter 8, waste water tank 5 and phase
Become on the pipeline that the atomization device 9 of generator 2 connects and be sequentially provided with water pump 6, regulating valve 7 and flowmeter 8.
Agitator is provided with waste water tank 5, is precipitated to prevent desulfurization wastewater, forms the desulfurization wastewater of even in liquid phase distribution, water pump 6
Desulfurization wastewater in waste water tank 5 is pumped out, passes through desulfurization wastewater pipeline to the atomization device 9 of phase transformation generator 2, desulfurization wastewater
Regulating valve 7 on pipeline controls the flow of desulfurization wastewater, and flowmeter 8 is used for the flow for observing desulfurization wastewater, passes through regulating valve 7
Flow control action, and the flow monitoring effect of flowmeter 8, in conjunction with the temperature value in phase transformation generator 2, control is realized anti-
Only the vapor after mass heat transfer condenses in phase transformation generator 2, so that vapor can smoothly be discharged by hot wind action
To outside phase transformation generator 2.
Embodiment 5
Such as Fig. 1, a kind of desulfurizing waste water processing device of the present embodiment, in the base of any one technical scheme of embodiment 1-4
It is further improved on plinth, the hot air units include heat collector 1, and the heat collector 1 includes passage one and passage two, passage
One entrance connects with high-temperature gas (being gathered materials on the spot in such as the present embodiment, using industrial high temperature flue gas), the outlet of passage one and absorption
Tower connects, and the entrance of passage two is passed through normal temperature air, and the outlet of passage two connects with the phase transformation generator 2.
In heat collector 1, normal temperature air is heated to 80 DEG C of hot-airs formed above by industrial high temperature flue gas, and hot-air is passed through
Into phase transformation generator 2, to provide temperature conditionss for matter thermal response.On the other hand, high-temperature flue gas is taking heat with normal temperature air
After carrying out heat exchange in device 1, industrial high temperature flue-gas temperature is reduced, then the high-temperature flue gas that temperature is reduced is passed through in absorption tower, is entered
Row desulfurization process, the technique water consumption liquid to be cooled to high-temperature flue gas reduces, thus reduces industrial high temperature flue gas desulfurization
The cost of processing.
Blower fan is connected with the entrance of passage two, and normal temperature air is blown into heat collector 1 by the wind of blower fan, while hot-air is entered
Enter phase transformation generator 2 and also function to facilitation；Blower fan can also be arranged on passage two and export between the phase transformation generator 2,
Hot-air is smoothly brought into phase transformation generator 2 by the wind of blower fan, so as to which matter thermal response occurs.
Embodiment 6
Such as Fig. 1, a kind of desulfurizing waste water processing device of the present embodiment, any scheme in embodiment 1-5 in can using, sheet
A kind of control system of desulfurizing waste water processing device of embodiment, including water pump 6, in addition to controller, regulating valve 7, flowmeter
8th, compressed air unit 10, temperature-detecting device, blower fan 4 and heat collector 1, described controller and water pump 6, regulating valve 7, flow
Meter 8, compressed air unit 10, temperature-detecting device, blower fan 4 and heat collector 1 electrically connect.
Controller controls the open and close of water pump 6, realizes the control that phase transformation whether is participated in desulfurization wastewater, controller control
Regulating valve 7 processed adjusts the flow of desulfurization wastewater, and the real-time traffic for the desulfurization wastewater that flowmeter 8 monitors feeds back to controller, controls
The flow value for the compressed air that device control compressed air unit 10 is passed through, controller control compressor flow (i.e. rotation speed of fan) and taken
Temperature value in phase transformation generator 2 is fed back to controller by the hot air flowrate that hot device 1 is passed through, temperature-detecting device, to control
The real-time flow data for the desulfurization wastewater that device combination flowmeter 8 processed feeds back, and then the flow that valve 7 adjusts desulfurization wastewater is controlled to adjust,
Prevent the vapor after mass heat transfer from being condensed in phase transformation generator 2, the heat that can be formed so as to vapor by hot-air
Wind action is smoothly discharged to outside phase transformation generator 2.
Embodiment 7
Such as Fig. 1, a kind of control system of desulfurizing waste water processing device of the present embodiment, make on the basis of embodiment 6 into
One step is improved, and temperature-detecting device is provided with the phase transformation generator 2.
Temperature in temperature-detecting device monitoring phase transformation generator 2, to feed back to controller, prevents that temperature is too low, matter heat
Vapor after exchange condenses in phase transformation generator 2, so that vapor can smoothly be discharged to phase transformation by hot wind action
Outside generator 2.
Embodiment 8
Such as Fig. 1, a kind of control system of desulfurizing waste water processing device of the present embodiment, any technology in embodiment 6-7
It is further improved on the basis of scheme, described temperature-detecting device is separately positioned on the exit of phase transformation generator 2, Yi Jisuo
State phase transformation generator 2 and hot air units connectivity part.
The steam temperature value for the temperature-detecting device monitoring that phase transformation generator 2 exports feeds back to controller, another temperature
Detection arrangement monitors hot air temperature is spent, controller controls to adjust the flow of valve 7, so that steam temperature is higher than dew-point temperature 10
DEG C so that, prevent from condensing, hot air temperature be higher than 80 DEG C, so that desulfurization wastewater is undergone phase transition.
Embodiment 9
Such as Fig. 1, a kind of control system of desulfurizing waste water processing device of the present embodiment, any technology in embodiment 6-8
It is further improved on the basis of scheme, after controller control water pump 6 is opened, controller control compressed air unit is opened, to
Compressed air is passed through in phase transformation generator 2, controller control blower fan is opened, and normal temperature air, control industry are sent into heat collector
High-temperature flue gas is passed into heat collector 1, heats normal temperature air, controller receives the temperature value of temperature-detecting device feedback, with dew
Point temperature compares, and controls to adjust the aperture of valve 7, and then monitor the numerical value of flowmeter 8 so that the temperature that phase transformation generator 2 exports
Degree is higher than dew-point temperature more than 10 DEG C.Described temperature-detecting device is separately positioned on the exit of phase transformation generator 2, and described
Phase transformation generator 2 and hot air units connectivity part.
Embodiment 10
Such as Fig. 1, a kind of desulfurizing waste water processing device of the present embodiment, any scheme in embodiment 1-5 in can using, sheet
A kind of control system of desulfurizing waste water processing device of embodiment, any technical scheme in embodiment 6-9, the present embodiment can be used
A kind of method for treating desulfurized wastewater, hot air units are passed through hot-air into phase transformation generator 2；At the same time, waste water system
After the atomizer 9 that desulfurization wastewater is delivered in phase transformation generator 2 is atomized, and the hot blast that hot-air is formed exchanges by caloic,
Gas phase is become by liquid phase, discharged as hot blast exports from phase transformation generator 2, the impurity in desulfurization wastewater crystallizes to form solid,
Enter the solids outlet port of phase transformation generator 2 in the presence of gravity.
Hot-air and the desulfurization wastewater mass heat transfer after atomization, realize the phase transformation of desulfurization wastewater, this process no pollution, zero
Discharge, realize that environmental protection and energy saving are handled, water environment will not be polluted.
Embodiment 11
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, make on the basis of 10 any technical scheme of embodiment
Further improving, high-temperature gas (can use industrial high temperature flue gas) enters the entrance of passage one of the heat collector 1 of hot air units,
The entrance of passage two of heat collector 1 blasts air, and air forms heat sky in heat collector 1 after the preheating of industrial high temperature flue gas
Gas, hot-air exports discharge from the passage two of heat collector 1, and into phase transformation generator 2, industrial high temperature flue gas is from heat collector 1
The outlet of passage one enters absorption tower.
Embodiment 12
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of 10 and 11 any technical scheme of embodiment
On be further improved, the desulfurization wastewater that the water pump 6 of waste water system is extracted in waste water tank 5 is simultaneously delivered in phase transformation generator 2
Desulfurization wastewater is atomized by atomizer 9, atomizer 9.
Embodiment 13
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of any technical schemes of embodiment 10-12
On be further improved, the hot blast that desulfurization wastewater and the hot-air of atomization are formed mix progress matter, heat in phase transformation generator 2
Exchange, desulfurization wastewater is undergone phase transition, the moisture evaporation formation vapor in desulfurization wastewater, impurity and salinity knot in desulfurization wastewater
Crystalline substance generation solid particle, solid particle includes bulky grain solid and solid small particles, and (bulky grain solid refers to by hot blast and again
The solid particle that power effect is fallen, solid small particles refer to the solid particle risen together with vapor), bulky grain solid is by weight
Power acts on, and falls on the solids outlet port of phase transformation generator 2, vapor and solid small particles as hot blast exports from phase transformation generator 2
Into gas-solid separator 3.
Embodiment 14
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of any technical schemes of embodiment 10-13
On be further improved, phase transformation generator 2 outlet connected with gas-solid separator 3, vapor and solid small particles are separated,
Solid small particles enter the bottom ash bucket of gas-solid separator 3, and periodically discharge, is uniformly processed.
Embodiment 15
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of any technical schemes of embodiment 10-14
On be further improved, atomizer 9 is connected with compressed air unit 10, and desulfurization wastewater is drawn into atomizer 9 through centrifugal pump 6,
The desulfurization wastewater is atomized by the compressed air in the compressed air unit 10 with the collective effect of atomizer 9.
Embodiment 16
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of any technical schemes of embodiment 10-15
On be further improved, hot air units and the connectivity part of phase transformation generator 2, temperature-detecting device is provided with phase transformation generator 2,
The hot air temperature of temperature-detecting device detection hot air units output, by the temperature control of hot-air more than 80 DEG C, so as to
With the desulfurization wastewater after atomization matter thermal response occurs for hot-air.
Embodiment 17
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of any technical schemes of embodiment 10-16
On, the exit of phase transformation generator 2 is provided with temperature-detecting device, temperature-detecting device detection steam temperature, by steam temperature
Control prevents Water vapor condensation from condensing, phase transformation hair is fallen or stayed in together with solid particle higher than more than 10 DEG C of dew-point temperature
In raw device 2, being completely separated for moisture and solid in desulfurization wastewater is realized.
Embodiment 18
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of any technical schemes of embodiment 10-17
On, pipeline that waste water tank 5 connects with atomizer 9 is provided with regulating valve 7, and regulating valve 7 is according to the temperature in the exit of phase transformation generator 2
Detection means, the flow of desulfurization wastewater is controlled, prevent that temperature is too low in phase transformation generator 2, causes vapor dew.
Embodiment 19
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, on the basis of any technical schemes of embodiment 10-18
On, include ash discharging hole and exhaust outlet with the gas-solid separator 3 of the outlet of phase transformation generator 2, the ash discharging hole is arranged on described
The bottom of gas-solid separator 3, the exhaust outlet are arranged on the top of the gas-solid separator 3, and the passage two of the heat collector 1 enters
Mouth, the heat collector 1 and the connectivity part of the phase transformation generator 2, the company of the phase transformation generator 2 and the gas-solid separator 3
Logical place is provided with blower fan 4 with position at least one in the exhaust ports of the gas-solid separator 3, in the present embodiment, by blower fan 4
Connected with the exhaust outlet of gas-solid separator 3, set blower fan 4 to cause successively from heat collector 1, phase transformation generator 2 to gas-solid point herein
Space from device 3 forms negative pressure section, ensure that normal temperature air flows after entering the passage two of heat collector 1 along negative pressure section, one
The flue gas (i.e. the mixture of vapor and solid small particles) for determining to avoid generation in degree leaks.
Embodiment 20
Such as Fig. 1, a kind of desulfurizing waste water processing device of the present embodiment, make in embodiment 1-5 on the basis of any scheme
Further improvement, in addition to gas-solid separator 3 and blower fan 4, the described front end of gas-solid separator 3 and going out for phase transformation generator 2
Mouth connection, the entrance of passage two of the heat collector 1, the connectivity part of the heat collector 1 and the phase transformation generator 2, the phase transformation
Generator 2 is provided with wind with position at least one in the connectivity part of the gas-solid separator 3 and the rear end of the gas-solid separator 3
Machine 4, in the present embodiment, blower fan 4 is connected with the rear end of gas-solid separator 3.
In the set-up mode of blower fan 4 mentioned above, due to the effect of negative pressure section, normal temperature air, which endlessly enters, takes heat
Hot-air is formed after gas 1 is preheated enter and matter thermal response is carried out in phase transformation generator 2, original air is then in phase transformation generator 2
Flow in gas-solid separator 3 and discharge, no matter therefore blower fan 4 be located at the entrance of passage two of heat collector 1, heat collector 1 with
Connectivity part, phase transformation generator 2 and the appointing in the connectivity part of gas-solid separator 3 and the rear end of gas-solid separator 3 of phase transformation generator 2
One position, or multiple positions wherein are equipped with blower fan 4, and blower fan 4 both contributes to normal temperature air being incorporated into heat collector 1
Preheated, while blower fan 4 enters in phase transformation generator 2 to warmed-up air and also plays facilitation；In addition, blower fan 4
Additionally aid the vapor and the mixture of solid small particles after mass heat transfer, occurred by the effect of air flow from phase transformation
It is brought into device 2 in gas-solid separator 3, while promotes gas-solid separator 3 to discharge vapor.
For example, the blower fan 4 set in the connectivity part of heat collector 1 and phase transformation generator 2, one side blower fan 4 and heat collector 1
The outlet of passage two, normal temperature air is introduced in the passage two of heat collector 1 and preheated, work of the preheated air in blower fan 4
Matter thermal response is carried out with lower blasted in phase transformation generator 2, blower fan 4 endlessly blasts hot-air into phase transformation generator 2,
So as to contribute to the vapor and the mixture of solid small particles after mass heat transfer, the effect of air flow is being blasted from phase transformation
It is brought into generator 2 in gas-solid separator 3, air endlessly then promotes gas-solid separator 3 into gas-solid separator 3
Vapor is discharged.
Embodiment 21
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment, including heat collector 1, the normal temperature air in heat collector 1
Heat exchange is carried out with industrial high temperature flue gas, reduces industrial high temperature flue-gas temperature, the normal temperature air of heat external forms hot-air, heat
Air enters phase transformation generator 2, and in phase transformation generator 2, desulfurization wastewater and hot-air after atomization carry out being sufficiently mixed heat
Mass transter, undergo phase transition, the vapor of discharge with the mixture of solid small particles after gas-solid separator 3 separates, row up to standard
Put, the solid of collection is uniformly processed.
The nucleus equipment of present invention process is phase transformation generator 2：In technique in the present invention, desulfurization wastewater is by water pump 6
After (compression pump can be used) supercharging, deliver in phase transformation generator 2 and sprayed after atomization, carried out after fully being contacted with hot-air mixing
Matter, heat exchange, desulfurization wastewater become solid phase by liquid phase, complete flash evaporation and instantaneously dry.So as to obtain solid particle.Big solid
Particle is discharged from phase transformation generator 2, and small solid particle reclaims through gas-solid separator 3, and small solid particle is received by gas-solid separator 3
Collection, clean tail gas are extracted out by blower fan and emptied.
In certain desulfurization case, former industrial high temperature flue-gas temperature is 150 DEG C, exhaust gas volumn 800000Nm3/ h, produce desulfurization
Wastewater flow rate (solid content 3%, chlorine ion concentration 20000mg/L) 2t/h.Normal temperature air 50000Nm3/ h, through over-heat-exchanger
After (i.e. heat collector 1), air themperature is 145 DEG C, after the evaporation of phase transformation generator 2, flue gas (i.e. vapor and small solid particle
Mixture) temperature is reduced to 65 DEG C, higher than 12 DEG C of dew-point temperature, phase transformation generator 2 diameter 2.8m, height 4m, atomizer 9 use
Single-phase flow spray gun or two-phase flow spray gun, two-phase flow spray gun are used in the present embodiment, gas-solid separator 3 uses sack cleaner, mistake
Filtering surface product is 720m2, concentration of emission is less than 5mg/Nm3, dust (i.e. small solid particle) collects 60kg/h, and fan pressure head is
3000Pa, flow 55000m3/ h, motor (are used to drive blower fan to rotate) power 75kW, by often 0.5 yuan of calculating of degree electricity, ton water
Processing cost reduces by 2 DEG C less than 20 yuan/t, former industrial high temperature flue-gas temperature.
Claims (8)
1. a kind of desulfurizing waste water processing device, including waste water system, it is characterised in that：Also include phase transformation generator (2) and heat is empty
Gas unit, outlet is provided with the top of the phase transformation generator (2), and phase transformation generator (2) bottom is provided with solid discharge
Mouthful, the phase transformation generator (2) connects with hot air units, the waste water system and the atomizer (9) in phase transformation generator (2)
Connection.
2. desulfurizing waste water processing device according to claim 1, it is characterised in that：Also include compressed air unit (10),
The compressed air unit (10) connects with the atomizer (9).
3. desulfurizing waste water processing device according to claim 1, it is characterised in that：The hot air units include heat collector
(1), the heat collector (1) includes passage one and passage two, and the entrance of passage one connects with high-temperature gas, the outlet of passage one and absorption
Tower connects, and the entrance of passage two is passed through normal temperature air, and the outlet of passage two connects with the phase transformation generator (2).
4. desulfurizing waste water processing device according to claim 1, it is characterised in that：Described waste water system includes waste water tank
(5), water pump (6), regulating valve (7) and flowmeter (8), the pipe that waste water tank (5) connects with phase transformation generator (2) atomization device (9)
Water pump (6), regulating valve (7) and flowmeter (8) are sequentially provided with road.
5. desulfurizing waste water processing device according to claim 3, it is characterised in that：Also include gas-solid separator (3) and wind
Machine (4), described gas-solid separator (3) front end and the outlet of phase transformation generator (2), the passage two of the heat collector (1)
Entrance, the heat collector (1) and connectivity part, the phase transformation generator (2) and the gas solid separation of the phase transformation generator (2)
In the connectivity part of device (3) and the rear end of the gas-solid separator (3) at least one at position be provided with blower fan (4).
6. the control system of desulfurizing waste water processing device according to claim 1, including water pump (6), it is characterised in that：Also
Including controller, regulating valve (7), flowmeter (8), compressed air unit (10), temperature-detecting device, blower fan (4) and heat collector
(1), described controller and water pump (6), regulating valve (7), flowmeter (8), compressed air unit (10), temperature-detecting device,
Blower fan (4) and heat collector (1) electrically connect.
7. the control system of desulfurizing waste water processing device according to claim 6, it is characterised in that the phase transformation generator
(2) temperature-detecting device is provided with.
8. the control system of the desulfurizing waste water processing device according to claim 6 or 7, it is characterised in that described temperature
Detection means is separately positioned on phase transformation generator (2) exit, and the phase transformation generator (2) connects with hot air units
Place.
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