CN107010687A - A kind of desulfurizing waste water processing device and its control system and control method - Google Patents
A kind of desulfurizing waste water processing device and its control system and control method Download PDFInfo
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- CN107010687A CN107010687A CN201710288639.8A CN201710288639A CN107010687A CN 107010687 A CN107010687 A CN 107010687A CN 201710288639 A CN201710288639 A CN 201710288639A CN 107010687 A CN107010687 A CN 107010687A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Abstract
The invention discloses a kind of desulfurizing waste water processing device and its control system and control method, belong 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 is connected with hot air units, and waste water system is connected with the atomizer in phase transformation generator.Controller is electrically connected with the water pump of waste water system, regulating valve and flowmeter, compressed air unit, temperature-detecting device, blower fan and heat collector.The temperature of controller control phase transformation generator exports is higher than dew-point temperature more than 10 DEG C, and hot air temperature is more than 80 DEG C.The present invention is solved breaks the problem of original desulfurization balances and causes equipment corrosion during flue processing desulfurization wastewater, it is achieved thereby that no pollution and the zero-emission of desulfurization wastewater.
Description
Technical field
The invention belongs to desulfurization wastewater process field, more specifically to a kind of desulfurizing waste water processing device and its control
System and control method processed.
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 contains high concentration suspended matter, oversaturated sulphite, soluble chloride and fluoride and various heavy
Impurity, wherein being much the first pollutant for requiring in national environmental standard strictly to control.Accordingly, it would be desirable 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 difficult to automatically control, most power plant's operation results are undesirable, and the waste water after processing is still
The right chlorion containing higher concentration, the corrosivity to metal and equipment is stronger.
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 the neutralization case of three headers, 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, carries out flocculation reaction under slow-speed of revolution stirring, promotes flco further to grow up, and flocculation tanks water outlet gravity flow enters clarification
Device, waste water flco is further grown up in clarifier, and carries 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, advanced treating is used after 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 is high (every
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 a small amount of using flue facture, i.e., desulfurization wastewater is sprayed onto after air preheater, the cigarette before electric precipitation
Allow waste water to evaporate on road, the technique is entered in desulphurization system due to waste water, not only break original desulfurization wastewater balance, 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 and utilize 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 the chemicals that Conventional waste water processing method is used；Overcome existing fume afterheat evaporation technique spray
Mist amount is big, and the problems such as 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) desulfurization wastewater enters and can break original de- in desulphurization system in the technique
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 be reduced, and be directly affected de-
Sulphur efficiency, corrodes desulphurization plant, reduces the desulphurization plant life-span；(3) directly desulfurization wastewater is passed through in cigarette lane, smoke content is big,
Flying dust is easily deposited, 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 is bonded with the flying dust in flue gas, thus pole
Yi Duiyan lanes and upstream device, for example, electric cleaner etc. causes corrosion.
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 and flow through the second of the air preheater with outside air
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 solve 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 because using outer
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, reduces the thermal losses for evaporating desulfurization wastewater.Its weak point is：(1) atomizer is arranged on outside drying tower
Portion, desulfurization wastewater forms 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 corrosion.
The content of the invention
1st, the problem of solving
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 provides a kind of desulfurizing waste water processing device and its control system and control method.It will not enter
Enter original system, desulphurization system is had no effect.
2nd, technical scheme
To solve the above problems, the present invention is adopted 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 are connected, and the waste water system is connected with the atomizer in phase transformation generator.
Desulfurization wastewater carries out matter, heat exchange generation sulfur-bearing, chlorine in phase transformation generator after being atomized through atomizer 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 is connected with the atomizer, compressed air with
Desulfurization wastewater mixing further promotes desulfurization wastewater atomization, is handed over so as to improve desulfurization wastewater drop and carry out matter, heat with hot gas
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 is connected with high-temperature gas (such as industrial high temperature flue gas), and the outlet of passage one is connected with absorption tower, and it is empty that the entrance of passage two is passed through normal temperature
Gas, the outlet of passage two is connected 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 the atomization device connection of device, 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, the connectivity part of the heat collector and the phase transformation generator, the phase transformation generator of the heat collector
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, by wind action from gas-solid separator is brought into phase transformation generator, while promoting 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 are electrically connected.
The amount that controller control hot-air, desulfurization wastewater and compressed air enter in phase transformation generator, it is ensured that atomization
Desulfurization wastewater fully contacts progress matter thermal response formation vapor and solid particle with hot-air.
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 that the desulfurization wastewater of atomization reacts the cigarette of generation with hot gas
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, condensation is prevented, 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 normal temperature is sent into heat collector empty
Gas, control industrial high temperature flue gas is passed into heat collector, heats normal temperature air, and controller receives the temperature of temperature-detecting device feedback
Angle value, compared with dew-point temperature, controls to adjust the aperture of valve, 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 in phase transformation generator that temperature is too low and occurs dew condensation phenomenon.
3rd, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) desulfurizing waste water processing device that the present invention is provided, the atomizer that desulfurization wastewater is set through phase transformation generator top
Atomization generation drop, drop is 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 falls 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 causing flue corrosion, 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 that the present invention is provided, desulfurization wastewater is drawn into atomizer through centrifugal pump, and compression is empty
Gas unit provides compressed air for atomizer, and compressed air is mixed with desulfurization wastewater further promotes desulfurization wastewater atomization, mist
Metaplasia into liquid-drop diameter it is smaller, be more evenly distributed, so that promoting desulfurization wastewater drop and hot gas carries out matter, heat exchange；
(3) steam outlet and gas solid separation at the top of the desulfurizing waste water processing device that the present invention is provided, phase transformation generator
Device is connected, 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
Go out, small solid particle falls into gas-solid separator ash discharging hole under gravity, vapor is discharged under fan action by exhaust outlet,
So as to be sufficiently separated the solid particle for reclaiming generation, it is to avoid the outer pollution discharging environment of less solid particle；
(4) desulfurizing waste water processing device that the present invention is provided, 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, so that effectively prevent flue gas occurs condensation and dewfall, so that vapor can be smoothly discharged to by hot wind action
Outside phase transformation generator；
(5) desulfurizing waste water processing device that the present invention is provided, utilizes high-temperature gas, such as industrial high temperature flue gas, such as desulfurization
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, the temperature of flue gas before desulfurization is reduced again, and lower temperature is provided for desulfurization
Degree, is conducive to improving desulfuration efficiency, reduces technique water consumption；
(6) normal temperature air is introduced and preheated in heat collector by the desulfurizing waste water processing device that the present invention is provided, 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, blasting sky
In the presence of the flowing of gas from gas-solid separator is brought into phase transformation generator, the air in phase transformation generator constantly enters
Gas-solid separator, discharges vapor so as to promote gas-solid separator；
(7) control system for the desulfurizing waste water processing device that the present invention is provided, is examined according to the temperature inside phase transformation generator
The temperature for surveying device detection controls to adjust the air supply of valve opening and the input of compressed air unit 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 for the desulfurizing waste water processing device that the present invention is provided, 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 generation mass heat transfer, formed vapor with
Solid particle, vapor is 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 is provided after place, mass heat transfer for mass heat transfer, and desulfurization wastewater is undergone phase transition, the liquid phase of script
It has been do not existed that, the hot blast of hot-air formation 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, the whole dry state of remaining process, the possibility of equipment corrosion is reduced；
(9) control system for the desulfurizing waste water processing device that the present invention is provided, compressed air unit is passed into atomizer,
Desulfurization wastewater atomizing effect is enhanced so that desulfurization wastewater formation 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) after the control method of the control system for the desulfurizing waste water processing device that the present invention is provided, mass heat transfer, desulfurization
Impurity and salinity crystallization generation solid particle in waste water, solid particle 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 by Action of Gravity Field, and vapor and solid small particles occur with hot blast from phase transformation
Device outlet enters gas-solid separator, and gas-solid separator separates vapor with solid small particles, and blower fan is by gas-solid separator
The vapor separated is discharged by wind action；
(11) provided with stirring in the control method of the control system for the desulfurizing waste water processing device that the present invention is provided, waste water tank
Device, is precipitated to prevent desulfurization wastewater, forms the desulfurization wastewater of even in liquid phase distribution, and 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 is used for the flow for observing desulfurization wastewater, passes through the flow prison of the flow control action of regulating valve, and flowmeter
Survey is acted on, and is controlled in conjunction with the temperature value in phase transformation generator, is prevented 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 for the desulfurizing waste water processing device that the present invention is provided, 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 for the desulfurizing waste water processing device that the present invention is provided, 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 feeds 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 the real-time flow data for the desulfurization wastewater that controller combination flowmeter feeds back,
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 for the desulfurizing waste water processing device that the present invention is provided, temperature-detecting device monitoring
Temperature in phase transformation generator, and the flow of the governor valve control desulfurization wastewater on controller, desulfurization wastewater pipeline is fed back to, flow
Gauge is used for the flow for observing desulfurization wastewater, by the flow monitoring effect 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 is 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 is connected with the atomizer 9 in phase transformation generator 2.
The hot-air of hot air units output is sent out with the desulfurization wastewater by the waste water system after the atomization of atomizer 9 in phase transformation
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 of hot-air formation 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；Except waste water system with addition to the desulfurization wastewater pipeline that atomizer 9 is connected, remaining process whole process dry state, by the possibility of equipment corrosion
Property reduction.
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 is connected 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, occurs more sufficient matter thermal response, so as to desulfurization wastewater so as to the drop of hot-air and 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 changes 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 in desulfurization wastewater, solid particle 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
Refer to the solid particle risen together with 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 are as hot blast is from the outlet of phase transformation generator 2 into gas-solid separator 3, and gas-solid separator 3 steams water
Gas is separated 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 promoting 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 is connected 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, the desulfurization wastewater of even in liquid phase distribution, water pump 6 is formed
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 flowmeter 8 flow monitoring effect, in conjunction with the temperature value in phase transformation generator 2, control is realized
Prevent the vapor after mass heat transfer from being condensed in phase transformation generator 2, so that vapor can smoothly be arranged by hot wind action
Go out 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, the heat collector 1 includes passage one and passage two, passage
One entrance is connected with high-temperature gas (being gathered materials on the spot in such as the present embodiment, using industrial high temperature flue gas), and the outlet of passage one is with absorbing
Tower is connected, and the entrance of passage two is passed through normal temperature air, and the outlet of passage two is connected 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
Carried out in device 1 after heat exchange, the reduction of industrial high temperature flue-gas temperature, then the high-temperature flue gas that temperature is reduced is passed through in absorption tower, entered
Row desulfurization process, the technique water consumption liquid reduction cooled to high-temperature flue gas, thus reduce 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 entering to hot-air
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, to occur matter thermal response.
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, this
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 are electrically connected.
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 is monitored feeds back to controller, controls
The flow value for the compressed air that device control compressed air unit 10 is passed through, controller controls 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 control and regulation valve 7 adjusts the flow of desulfurization wastewater,
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 temperature 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 is exported 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 condensation, 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 is exported
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, this
A kind of control system of desulfurizing waste water processing device of embodiment, can use any technical scheme, the present embodiment in embodiment 6-9
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
Desulfurization wastewater is delivered to after the atomizer 9 in phase transformation generator 2 is atomized, and the hot blast that hot-air is formed is exchanged by caloic,
Gas phase is become by liquid phase, discharged as hot blast is exported 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, realizes that environmental protection and energy saving are handled, will not pollute water environment.
Embodiment 11
Such as Fig. 1, a kind of method for treating desulfurized wastewater of the present embodiment is made on the basis of any technical scheme of embodiment 10
Further improve, 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, into phase transformation generator 2, and 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 any technical scheme of embodiment 10 and 11
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 in phase transformation generator 2 carries out matter, heat
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 is acted on, and falls on the solids outlet port of phase transformation generator 2, and vapor and solid small particles are exported with hot blast 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 is separated with solid small particles,
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 are provided with temperature-detecting device in 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 higher than more than 10 DEG C of dew-point temperature, falls together with solid particle or stays in phase transformation hair
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, the pipeline that waste water tank 5 is connected 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, controls the flow of desulfurization wastewater, prevents 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 is 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, it is ensured 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 is made 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
It is interior to be preheated, while 4 pairs of warmed-up air of blower fan, which enter in phase transformation generator 2, also plays facilitation；In addition, blower fan
4 additionally aid the vapor and the mixture of solid small particles after mass heat transfer, are sent out by the effect of air flow from phase transformation
It is brought into raw device 2 in gas-solid separator 3, while promoting gas-solid separator 3 to discharge vapor.
For example, the blower fan 4 of the connectivity part setting in 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 and preheated in the passage two of heat collector 1, the work of 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 contributing 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, industrial high temperature flue-gas temperature, the normal temperature air formation hot-air of heat external, heat is reduced
Air enters phase transformation generator 2, in phase transformation generator 2, and the desulfurization wastewater and hot-air after atomization carry out being sufficiently mixed heat
Mass transter, undergoes phase transition, the vapor of discharge with the mixture of solid small particles after gas-solid separator 3 is separated, 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 instantaneous dry.So as to obtain solid particle.Big solid
Particle is discharged from phase transformation generator 2, and small solid particle is reclaimed through gas-solid separator 3, and small solid particle is received by gas-solid separator 3
Collection, clean tail gas is extracted out by blower fan to be emptied.
In certain desulfurization case, former industrial high temperature flue-gas temperature is 150 DEG C, and exhaust gas volumn is 800000Nm3/ h, produces desulfurization
Wastewater flow rate (solid content is 3%, and chlorine ion concentration is 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, the diameter 2.8m of phase transformation generator 2, height 4m, atomizer 9 is adopted
With single-phase flow spray gun or two-phase flow spray gun, two-phase flow spray gun is used in the present embodiment, gas-solid separator 3 uses sack cleaner,
Filter area 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 is 55000m3/ h, motor (is used to drive blower fan to rotate) power 75kW, is calculated by 0.5 yuan of electricity is often spent, ton water
Processing cost reduces by 2 DEG C less than 20 yuan/t, former industrial high temperature flue-gas temperature.
Claims (10)
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
Outlet is provided with the top of gas unit, the phase transformation generator (2), 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 is connected with high-temperature gas, and the outlet of passage one is with absorbing
Tower is connected, and the entrance of passage two is passed through normal temperature air, and the outlet of passage two is connected 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) is connected 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 the connectivity part of the phase transformation generator (2), the phase transformation generator (2) and the gas solid separation
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) are electrically connected.
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) is connected with hot air units
Place.
9. the control method of the control system of desulfurizing waste water processing device according to claim 6, it is characterised in that：Control
After device control water pump (6) is opened, controller control compressed air unit (10) is opened, and compression is passed through to phase transformation generator (2) is interior
Air, controller control blower fan (4) is opened, and to the interior feeding normal temperature air of heat collector (1), control high-temperature gas is passed into heat collector
(1) in, normal temperature air is heated, controller receives the temperature value of temperature-detecting device feedback, compared with dew-point temperature, control is adjusted
The aperture of valve (7) is saved, and then monitors the numerical value of flowmeter (8) so that the temperature of phase transformation generator (2) outlet is higher than dew-point temperature
More than 10 DEG C so that heat collector (1) is passed into hot air temperature in phase transformation generator (2) more than 80 DEG C.
10. the control method of the control system of desulfurizing waste water processing device according to claim 9, it is characterised in that：Institute
The temperature-detecting device stated is separately positioned on phase transformation generator (2) exit, and the phase transformation generator (2) and hot-air list
First connectivity part.
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| CN110282699A (en) * | 2019-06-19 | 2019-09-27 | 北京伟思创科技股份有限公司 | Purifier reverse osmosis membrane monitoring method and purifier |
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