CN108167798A - Waste water with air preheater steams equipment - Google Patents
Waste water with air preheater steams equipment Download PDFInfo
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- CN108167798A CN108167798A CN201711223536.XA CN201711223536A CN108167798A CN 108167798 A CN108167798 A CN 108167798A CN 201711223536 A CN201711223536 A CN 201711223536A CN 108167798 A CN108167798 A CN 108167798A
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- Prior art keywords
- waste water
- air
- waste
- flue gas
- air preheater
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
Abstract
The present invention discloses a kind of waste water with air preheater and steams equipment, belong to wastewater treatment equipment technical field, waste water with air preheater steams equipment, including waste evaporator plant, the waste water tank being connect with waste evaporator plant, waste evaporator plant entrance connects waste water tank and the port of export of SCR denitration device respectively, SCR denitration device arrival end connects economizer, the port of export is also associated with air preheater, waste evaporator plant outlet is connected with liquid header, liquid header is connect with electrical dust collector device, air preheater is connect respectively with the heating mouth of shampoo vaporising device side and electrical dust collector device entrance, the equipment of the present invention ensures the atomization of waste water dropping liquid and evaporation rate, without dust in evaporation equipment, the phenomenon that fouling and corrosion, realize wastewater zero discharge, investment and operating cost are low.
Description
Technical field
The invention belongs to wastewater treatment equipment technical fields, are set more particularly to a kind of waste water steaming with air preheater
It is standby.
Background technology
There are many purposes of water industrially, and typical commercial Application has：Industrial water, rinsing water, washing and cooling are used
Water.It is generated this means that industrially having the largely waste water containing various high density pollution object.Most situations
Under, these waste water are needed after being handled in built-in system, can be just discharged into public drainage or river, lake and ocean.
One economic, environment amenable waste water treatment system should be portion indispensable in a factory or workshop integrated planning
Point.
The desulfurization wastewater particularly generated in desulphurization system operational process in thermal power plant, the desulfurization wastewater are more special and multiple
Miscellaneous, corrosivity is stronger, is to the main method of desulfurization wastewater at present：The methods of pretreatment, concentration decrement, curing process, wherein
Flue spray evaporation technology in solidification processing method is in cost of investment, operating cost, floor space etc. relative to other
Method has very big advantage, but as national industry adjusts, the exhaust gas temperature of thermal power plant is down within 110 DEG C, this can shadow
The effect of dropping liquid atomization and vaporization is rung, and equipment is easier to be corroded.
Invention content
Ensure the atomization of waste water dropping liquid and evaporation rate using multi source heating mode the purpose of the present invention is to provide a kind of, steam
The phenomenon that sending out in equipment without dust, fouling and corrosion, realizes wastewater zero discharge, invests and what operating cost was low carries air preheat
The waste water of device steams equipment.
The technical solution taken to achieve the above object of the present invention is：Waste water with air preheater steams equipment, packet
Waste evaporator plant is included, the waste water tank being connect with waste evaporator plant, waste evaporator plant entrance connects waste water tank and SCR respectively
The port of export of denitrification apparatus, SCR denitration device arrival end connection economizer, the port of export are also associated with air preheater, and waste water steams
Transmitting apparatus outlet is connected with liquid header, and liquid header is connect with electrical dust collector device, and air preheater steams respectively with shampoo
The heating mouth of transmitting apparatus side is connected with electrical dust collector device entrance, and the present invention selects the flue gas of power plant's discharge also to be chosen as heat source
Air preheater improves flue-gas temperature to flue gas, and the high-temperature gas that is obtained after air preheater heats is steamed by waste water
The heating mouth of transmitting apparatus side enters, i.e., at the top of waste evaporator plant and side is passed through flue gas, and in waste evaporator plant
Flue-gas temperature from top to bottom improves successively improves the temperature inside waste evaporator plant, realizes waste water in waste evaporator plant
Be basically completed evaporation, salinity in waste water and other can not evaporated material form solid particle and mix with flue gas and pass through liquid collection
Device is completed to remove to electrical dust collector device, and in the exit of waste evaporator plant lower part, the liquid header of setting can prevent waste water from steaming
Waste water evaporation rate does not reach 100% in transmitting apparatus, and remaining atomization waste water drop is condensed through liquid header collects, then will collect
Waste water be delivered to waste water tank and evaporate again, realize that waste water 100% evaporates, i.e. wastewater zero discharge.
Preferably, the air inlet of liquid header is connect with waste evaporator plant, liquid header gas outlet is removed with electricity
Dirt device connects, and liquid header upper and lower end face interleaved is equipped with cold plate, and condensation plate surface is all provided with air hole, cold plate with
Liquid header cavity heights ratio is 0.7-0.8:1, to prevent the waste water evaporation rate in waste evaporator plant from not reaching 100%,
Also there are partly atomized water droplets in flue gas, and setting liquid header is to remaining in the condensation of the water droplets in flue gas, interleaved
The flue gas flow rate that the cold plate reduction of setting is flowed out from waste evaporator plant ensures that the drop of the waste water in flue gas 100% is condensed, makes
It extended residence time of the flue gas in liquid header and drops in condensation process conducive to waste water and absorbs heat by flue gas, it is real
The effect of flue gas heat is now reduced, the exhaust gas temperature of power plant is made to reach set point of temperature, also by the way that cold plate is set to be collected with liquid
Device cavity heights and the air hole ratio of condensation plate surface ensure that flue gas passes through, and prevent the solid particle in Airflow obstruction and flue gas residual
It stays in inside liquid header, it is poor to the condensation effect of vapor that cold plate is only used for condensation waste water drop.
Preferably, waste evaporator plant includes housing, housing central section is cylinder, and upper and lower ends are circular cone shape and cone
Degree is different, and housing upper end is equipped with air inlet, the flue gas rectifier positioned at enclosure interior is equipped with below air inlet, housing upper end is also set
There is the water inlet pipe being connect with flue gas rectifier, water inlet pipe end is connected with atomizer, and atomizer is located under flue gas rectifier
Side, the cylinder of housing central section is interior to be equipped with helical pipe, and housing is respectively equipped with heating mouth in two sides up and down, and housing bottom is equipped with out
Mouthful, which is passed through waste water flowing while the high temperature that flue gas makes flue gas drive atomization while waste water atomized spray
Flue gas can accelerate the evaporation rate and effect of the waste water of atomization, and helical pipe is set to extend flue gas, atomization waste water in waste water
Time inside vaporising device ensures that waste water is evaporated completely in waste evaporator plant substantially, and atomizer is arranged on waste water
Be conducive to accelerate waste water evaporation in vaporising device and ensure that waste water is evenly distributed inside housings, atomizer is selected second-rate internal
Mixing atomizer, Nebulised ions are 90 microns, when being atomized waste water drop and entering cryogenic gas through air inlet simultaneously
Air preheater heats the flue gas after SCR denitration device denitration, and the temperature for making original cryogenic gas is 110-170
DEG C flue gas be heated up to 250-450 DEG C of formation high-temperature gas, at the top of waste evaporator plant and side is passed through flue gas, and waste water steams
Flue-gas temperature in transmitting apparatus from top to bottom improves successively improves the temperature inside waste evaporator plant, and high-temperature gas can improve
Temperature inside helical pipe accelerates evaporation effect of the atomization waste water in helical pipe to ensure that the outlet of waste evaporator plant goes out
Gas temperature be maintained at 120 DEG C or more, higher than acid dew-point temperature.
Preferably, helical pipe end is connected with friction plate, friction plate is arranged in for funnel-form in housing, maximum gauge
End is connect with inner walls, and minimum diameter end is connect with helical pipe arrival end, and current divider is connected on friction plate, shunting
Shaft on device is connect with flue gas rectifier bottom surface, and friction plate is selected to change flow direction and the gas of the gas containing atomization waste water
Size is pressed, flue gas is made to be collected in helical pipe, while friction plate diamond shaped similar with the frustum of a cone Formation cross-section of housing upper end
Structure conducive to flue gas flows downward and improves air pressure, pushes the solid particulate matter in helical pipe and housing using air pressure, avoids
Solid particulate matter is remained in housing, dust, scale formation occurs, the corrosion phenomenon that can also prevent the fouling of dust arc from occurring.
Preferably, current divider includes shaft, shaft side surrounding arrangement flabellum, fan blade end is connected by uniformly distributed spring
Collecting plate is connected to, thermal-arrest plate surface is evenly equipped with the drag ring of annular, and drag ring is slidably connected with friction plate, is entered using air inlet
Flue gas air-flow drive flabellum rotation change enter flue gas stream form it into spiral air flow, the flow velocity for reducing flue gas is effective
Extend the flow velocity of flue gas inside housings, drag ring is made to carry out friction with friction plate while flabellum rotates and generates frictional heat
The surface temperature raising of amount, drag ring and friction plate, further heats flue gas using the drag ring and friction plate of the condition of high temperature
Accelerate waste water evaporation effect, being treated when friction plate and drag ring are rubbed, which can make helical pipe generate micro vibrations, promotes
Displacement of the solid particle in helical pipe.
Preferably, flue gas rectifier surface is all provided with venthole, air channel, flue gas rectifier surface are equipped between venthole
Through-hole rate between 35% ~ 45%, for ensureing that the low-temperature flue gas entered above air inlet uniformly enters enclosure interior and reaches
To the effect of deceleration, it is beneficial to extend the residence time of flue gas inside housings.
Preferably, helical pipe surface is equipped with rectangle air dispelling hole, two pieces of opposite arc panels are equipped in the middle part of air dispelling hole,
Arc plate spacing is 0.5-2mm.The air dispelling hole of rectangular cross-section shape is opened up on helical pipe surface makes flue gas stream by spiral shell
Directly being contacted outside partial fume outflow helical pipe with high-temperature gas during coil road, which increases waste water evaporation effect, avoids atomization waste water
Helical pipe is corroded, surface temperature raising further heats flue gas acceleration using the drag ring and friction plate of the condition of high temperature
Waste water evaporation effect, being treated when friction plate and drag ring are rubbed, which can make helical pipe generate micro vibrations, promotes solid
Displacement of the particle in helical pipe.The arc panel set in the middle part of air dispelling hole softens under the action of high-temperature gas, increases
The curvature and surface roughness of big arc panel, the air-flow impact force of air-flow and air pressure when by arc panel can make two pieces of arcs
Plate collides, and collides by the atomization waste water in the air-flow of air dispelling hole with arc panel, and the water of waste water is atomized when hitting
Drop size, which is decreased further, promotes the water atomization containing salt component to be formed in the solid particle arc panel of water droplets shock simultaneously
Solid impurity can directly be taken away by the air-flow of flue gas to be needed not move through evaporation water is made to be detached with solid impurity.
Preferably, the ratio of arc panel and the spatial area that air dispelling hole is formed and air dispelling hole spatial area is 0.33-
0.45:1, according to formula , whereinFor helical pipe intensity, P is
Porosity, rmFor hole area, K is air pressure level, preferably arc panel and the spatial area that air dispelling hole is formed and air dispelling hole space
The ratio of area realizes that the atmospheric density on the outside of air dispelling hole reduces to form low-pressure area and promote density in helical pipe relatively high
Air flows outward, and ensures that the atomization waste water in the air-flow by air dispelling hole collides with arc panel, the mist when hitting
The drop size for changing waste water is decreased further the water atomization formation solid particle water droplets shock simultaneously promoted containing salt component
Solid impurity in arc panel can directly be taken away by the air-flow of flue gas to be needed not move through evaporation water is made to be detached with solid impurity.
Preferably, housing side is additionally provided with relief hole, avoid enclosure interior air pressure is excessively high from fortuitous event occur, by letting out
Hole is pressed periodically to carry out pressure release to enclosure interior.
Compared with prior art, beneficial effects of the present invention are：It is realized using waste evaporator plant and liquid header useless
Water 100% evaporates, i.e. wastewater zero discharge, and the salt component in waste water is formed solid particle by evaporation and is removed by electrical dust collector device
It goes；Flue-gas temperature in waste evaporator plant from top to bottom improves successively improves the temperature inside waste evaporator plant, accelerates
Be atomized evaporation effect of the waste water in helical pipe ensure the gas temperature exported out of waste evaporator plant be maintained at 120 DEG C with
On；The solid particulate matter in helical pipe and housing is pushed using air pressure, solid particulate matter is avoided to remain in housing, is hung
Ash, scale formation, the corrosion phenomenon that can also prevent the fouling of dust arc from occurring.
Description of the drawings
Fig. 1 is the schematic diagram that shampoo of the present invention with air preheater steams equipment；
Fig. 2 is the schematic internal view of fluid present invention collector；
Fig. 3 is the schematic diagram of waste evaporator plant；
Fig. 4 is the schematic diagram of current divider；
Fig. 5 is the schematic diagram of flue gas rectifier；
Fig. 6 is air dispelling hole partial schematic diagram on helical pipe.
Reference sign：1. water inlet pipe；2. friction plate；3. flue gas rectifier；4. current divider；401. flabellum；402. turn
Axis；403. spring；404. drag ring；405. collecting plate；5. liquid header；501. air inlet；502. cold plate；503. outlet
Mouthful；6. air inlet；7. atomizer；8. heat mouth；9. helical pipe；901. air dispelling hole；902. arc panel；10. waste water evaporates
Device；11. housing；12. outlet；13. electrical dust collector device；14. high-temperature gas；15. air preheater；16. economizer；17.SCR
Denitrification apparatus；18. cryogenic gas；19. waste water tank；20. relief hole.
Specific embodiment
The present invention is described in further detail with attached drawing with reference to embodiments：
Embodiment 1：
As shown in Figure 1,3, the waste water with air preheater steams equipment, including waste evaporator plant 10, with waste evaporator plant
The waste water tank 19 of 10 connections, 10 entrance of waste evaporator plant connect waste water tank 19 and the port of export of SCR denitration device 17 respectively,
17 arrival end of SCR denitration device connects economizer 16, and the port of export is also associated with air preheater 15, and waste evaporator plant 10 exports
12 are connected with liquid header 5, and liquid header 5 is connect with electrical dust collector device 13, and air preheater 15 evaporates respectively with shampoo
The heating mouth 8 of 10 side of device is connected with 13 entrance of electrical dust collector device, the present invention select power plant discharge flue gas as heat source also
It has chosen air preheater and flue-gas temperature is improved to flue gas, the high-temperature gas 14 obtained after the heating of air preheater 15
Entered by the heating mouth 8 of 10 side of waste evaporator plant, i.e., 10 top of waste evaporator plant and side are passed through flue gas, and waste water
Flue-gas temperature in vaporising device 10 from top to bottom improves successively improves the temperature inside waste evaporator plant 10, realizes waste water
Be basically completed evaporation in waste evaporator plant 10, salinity in waste water and other can not evaporated material form solid particle and cigarette
Gas mixing is completed to remove by liquid header 5 to electrical dust collector device 13, is set at the outlet 12 of 10 lower part of waste evaporator plant
The liquid header 5 put can prevent waste water evaporation rate in waste evaporator plant 10 from not reaching 100%, remaining atomization waste water drop
It condenses and collects through liquid header 5, then the waste water of collection is delivered to waste water tank 19 and is evaporated again, realize that waste water 100% evaporates,
That is wastewater zero discharge.
Embodiment 2：
As shown in Fig. 2, the present embodiment advanced optimizes scheme on the basis of embodiment 1 is：The air inlet of liquid header 5
501 connect with waste evaporator plant 10, and 5 gas outlet 503 of liquid header is connect with electrical dust collector device 13, on liquid header 5
Lower face interleaved is equipped with cold plate 502, and 502 surface of cold plate is all provided with air hole, cold plate 502 in liquid header 5
Chamber height is than preferably 0.8:1, to prevent the waste water evaporation rate in waste evaporator plant 10 from not reaching 100%, also deposited in flue gas
In partly atomized water droplet, setting liquid header 5 is to remaining in the condensation of the water droplets in flue gas, the condensation of interleaved setting
Plate 502 reduces the flue gas flow rate flowed out from waste evaporator plant 10, ensures that the drop of the waste water in flue gas 100% is condensed, flue gas is made to exist
It extended residence time in liquid header 5 and drops in condensation process conducive to waste water and absorbs heat by flue gas, realize drop
The effect of low flue gas heat makes the exhaust gas temperature of power plant reach set point of temperature, also by setting cold plate 502 and liquid header
The air hole ratio on 502 surface of 5 cavity heights and cold plate ensures that flue gas passes through, and prevents the solid particle in Airflow obstruction and flue gas
It remains in inside liquid header 5, it is poor to the condensation effect of vapor that cold plate 502 is only used for condensation waste water drop.
Embodiment 3：
As shown in figure 3, the present embodiment, on the basis of embodiment 1, the scheme of advanced optimizing is：Waste evaporator plant 10 includes shell
Body 11,11 middle part of housing are cylinder, and upper and lower ends are equipped with air inlet 6 for circular cone shape and taper difference, 11 upper end of housing, into
6 lower section of air port is equipped with the flue gas rectifier 3 being located inside housing 11, and 11 upper end of housing is additionally provided with what is connect with flue gas rectifier 3
Water inlet pipe 1,1 end of water inlet pipe are connected with atomizer 7, and atomizer 7 is located at 3 lower section of flue gas rectifier, 11 middle part of housing
Helical pipe 9 is equipped in cylindrical, housing is respectively equipped with heating mouth 8 in two sides about 11, and 11 bottom of housing is equipped with outlet 12, should
Waste evaporator plant 10 is passed through waste water flowing while the high temperature cigarette that flue gas makes flue gas drive atomization while waste water atomized spray
Gas can accelerate the evaporation rate and effect of the waste water of atomization, and helical pipe 9 is set to extend flue gas, atomization waste water in waste water steaming
Time inside transmitting apparatus 10 ensures that waste water is evaporated completely in waste evaporator plant 10 substantially, and atomizer 7 is arranged on
Be conducive to accelerate waste water evaporation in waste evaporator plant 10 and ensure that waste water is evenly distributed inside housing 11, atomizer 7 selects
With second-rate body internal mixing type atomizer, Nebulised ions are 90 microns, enter cryogenic gas through air inlet 6 in atomization waste water drop
Air preheater 15 heats the flue gas after SCR denitration device denitration simultaneously when 18, makes original cryogenic gas
Temperature be that 110-170 DEG C of flue gas is heated up to 250-450 DEG C of formation high-temperature gas 14,10 top of waste evaporator plant and side
Flue gas is passed through, and from top to bottom raising makes inside waste evaporator plant 10 flue-gas temperature in waste evaporator plant 10 successively
Temperature improves, and high-temperature gas 14 can improve the temperature inside helical pipe 9, accelerates evaporation of the atomization waste water in helical pipe 9
Effect ensures that the gas temperature that the outlet 12 of waste evaporator plant 10 goes out is maintained at 120 DEG C or more, higher than the dew-point temperature of acid.
9 end of helical pipe is connected with friction plate 2, and friction plate 2 is arranged in for funnel-form in housing 11, maximum gauge end with
11 inner wall of housing connects, and minimum diameter end is connect with 9 arrival end of helical pipe, and current divider 4 is connected on friction plate 2, point
Shaft 402 on stream device 4 is connect with 3 bottom surface of flue gas rectifier, and friction plate 2 is selected to change the flowing of the gas containing atomization waste water
Direction and air pressure size, make flue gas be collected in helical pipe 9, while the truncated cone of friction plate 2 and 11 upper end of housing is into cutting
Noodles are flowed downward and are improved conducive to flue gas air pressure like diamond shaped structure, pushed in helical pipe 9 and housing 11 using air pressure
Solid particulate matter avoids solid particulate matter from remaining in housing 11, dust, scale formation occurs, can also prevent dust arc fouling
The corrosion phenomenon of appearance.
Current divider 4 includes shaft 402, and 402 side surrounding of shaft arrangement flabellum 401,401 end of flabellum passes through uniformly distributed bullet
Spring 403 is connected with collecting plate 405, and 405 surface of collecting plate is evenly equipped with the drag ring 404 of annular, and drag ring 404 is slided with friction plate 2
Dynamic connection, the air-flow of the flue gas entered using air inlet 6 are driven the rotation of flabellum 401 to change the flue gas stream entered and form it into spiral shell
Rotational gas flow, the flow velocity for reducing flue gas effectively extend flow velocity of the flue gas inside housing 11, make friction while flabellum 401 rotates
Ring 404 carries out friction with friction plate 2 and generates frictional heat, and the surface temperature raising of drag ring 404 and friction plate 2 utilizes high temperature
The drag ring 404 and friction plate 2 of state, which further heat flue gas, accelerates waste water evaporation effect, in friction plate 2 and drag ring 404
Being treated when friction, which can make helical pipe 9 generate micro vibrations, promotes displacement of the solid particle in helical pipe 9.
3 surface of flue gas rectifier is all provided with venthole, and air channel, the through-hole on 3 surface of flue gas rectifier are equipped between venthole
Between 35% ~ 45%, the low-temperature flue gas 18 for ensureing 6 top entrance of air inlet uniformly enters 11 inside of housing and reaches rate
The effect of deceleration is beneficial to extend residence time of the low-temperature flue gas 18 inside housing 11.
9 surface of helical pipe is equipped with rectangle air dispelling hole 901, and 901 middle part of air dispelling hole is equipped with two pieces of opposite arc panels
902,902 spacing of arc panel is preferably 0.57mm.The air dispelling hole 901 of rectangular cross-section shape is opened up on 9 surface of helical pipe makes cigarette
Gas air-flow directly contacts when by helical pipe 9 outside partial fume outflow helical pipe 9 with high-temperature gas 14 increases waste water steaming
Hair effect avoids atomization waste water from corroding helical pipe, and the atmospheric density in 901 outside of air dispelling hole is made to reduce to form low-pressure area rush
The air that density is relatively high in helical pipe 9 is made to flow outward, solid particle and solids can be effectively prevent in helical pipe 9
Interior residual results in blockage or helical pipe 9 is caused to corrode, and the arc panel 902 set in the middle part of air dispelling hole is in high-temperature gas 14
Effect is lower to be softened, and increases the curvature and surface roughness of arc panel 902, air-flow air-flow when by arc panel 902
Impact force and air pressure can make two pieces of arc panels 902 collide, by the atomization waste water and arc panel in the air-flow of air dispelling hole 901
902 collide, and when hitting, the drop size of atomization waste water, which is decreased further, promotes the water atomization containing salt component to be formed admittedly
The body particle solid impurity that water droplets are hit in arc panel 902 simultaneously can directly be taken away by the air-flow of flue gas needs not move through evaporation
Water is made to be detached with solid impurity.
The arc panel 902 of the present invention is made of following component and parts by weight：17 parts of Ti-Ni alloy, 8 parts of ormolu, dioxy
30 parts of SiClx, 22 parts of silane coupling agent, 35 parts of quartz sand, 10 parts of the diamond that φ is 0.1mm, 35 parts of sodium fluoride, calcium carbonate 40
Part, 3 parts of graphite powder, 50 parts of trichloro ethylene, 40 parts of sodium metnylene bis-naphthalene sulfonate, 28 parts of cyclopentanol, 15 parts of waterglass, alkyl phenol gather
34 parts of ethylene oxide ether, the preparation method of the arc panel 902 is as follows：By weight, Ti-Ni alloy, ormolu are melted to be formed
Metal water, it is spare, by silica, silane coupling agent, quartz sand, the diamond that φ is 0.1mm, sodium fluoride, calcium carbonate, graphite
Powder, trichloro ethylene, sodium metnylene bis-naphthalene sulfonate, cyclopentanol, waterglass are uniformly mixed under the conditions of 60 DEG C, are heated up to 80 DEG C and are continued
It is poured into mold with together with metal water, 0.04 parts by weight of mixture after 30min, obtains arc panel 902, wherein mixture is by L- dried meat ammonia
Acid methyl ester hydrochloride salt and D-PROLINE methyl ester hydrochloride, the two mass ratio are 57:3, by adding in 902 preparation process of arc panel
Enter mixture and avoid occurring the situation of carbon diffusion in the arc panel prepared, mechanical strength and the surface for improving arc panel 902 are smooth
Property assign the excellent anti-adhesion effects of arc panel and the salt tolerant fog effect of the arc panel 902 prepared is fabulous, arc panel 902 after tested
Salt-fog resistant time in more than 543h, acid resistance can reach more than 350h, and alkali resistance reaches more than 330h.
Arc panel 902 and the ratio of the spatial area that air dispelling hole 901 is formed and 901 spatial area of air dispelling hole are 0.33-
0.45:1, according to formula , whereinFor helical pipe intensity, P
For porosity, rmFor hole area, K is air pressure level, preferably arc panel 902 with the spatial area that air dispelling hole 901 is formed with dissipating
The ratio 0.35 of 901 spatial area of stomata:1, it realizes that the atmospheric density in the outside of air dispelling hole 901 reduces to form low-pressure area and promote spiral
The relatively high air of density flows outward in pipeline 9, and ensures atomization waste water and arc in the air-flow by air dispelling hole 901
Shape plate 902 collides, and when hitting, the drop size of atomization waste water is decreased further the water atomization shape promoted containing salt component
It can directly be taken away and need not move through by the air-flow of flue gas into the solid particle solid impurity that water droplets are hit in arc panel 902 simultaneously
Evaporation makes water be detached with solid impurity.
11 side of housing is additionally provided with relief hole 20, avoids 11 air pressure inside of housing is excessively high from fortuitous event occur, passes through pressure release
Hole 20 periodically carries out pressure release to 11 inside of housing.
Embodiment 4：
The waste water evaporation equipment with air preheater of the present invention, in actual use：Pass through SCR denitration device denitration in power plant
Flue gas afterwards is circulated at air preheater 15, and a part of cryogenic gas 18 is directly transported by pipeline during circulation
To 10 top of waste evaporator plant, and the waste water in waste water tank 19 simultaneously by water inlet pipe 1 enter in waste evaporator plant 10 by
The waste water that waste water is converted into 90 microns of Nebulised ions by atomizer 7 drips, and the cryogenic gas 18 that air inlet 6 enters is through flue gas rectification
Air flow method and is driven the waste water after atomization to be moved to helical pipe 9 while the flabellum 401 on current divider 4 occurs by device 3
Rotation make by gas in the shape of a spiral air-flow and friction plate 2 and 404 surface temperature of drag ring raising, utilize the condition of high temperature
Drag ring 404 and friction plate 2, which further heat flue gas, accelerates waste water evaporation effect, rubs in friction plate 2 and drag ring 404
Being treated when wiping, which can make helical pipe 9 generate micro vibrations, promotes displacement of the solid particle in helical pipe 9, and flue gas is in spiral
It is flowed in pipeline 9, the gas after heating is inputted High Temperature Gas by air preheater 15 by the heating mouth 8 of 11 side of housing before this
Body 14, the evaporation effect for increasing waste water by high-temperature gas 14 avoid atomization waste water from corroding helical pipe 9, surface temperature liter
Height further heats flue gas using the drag ring 404 and friction plate 2 of the condition of high temperature and accelerates waste water evaporation effect, in friction plate 2
Being treated when friction with drag ring 404, which can make helical pipe 9 generate micro vibrations, promotes solid particle in helical pipe 9
Displacement, high-temperature gas 14 also make arc panel 902 occur softening increase arc panel 902 curvature and surface roughness, air-flow
The impact force of air-flow and air pressure can make two pieces of arc panels 902 collide when by arc panel 902, by air dispelling hole 901
Atomization waste water in air-flow collides with arc panel 902, and when hitting, the drop size of atomization waste water is decreased further rush
The water atomization containing salt component is made to form the solid particle solid impurity that water droplets are hit in arc panel 902 simultaneously can be directly by cigarette
The air-flow of gas, which is taken away, to be needed not move through evaporation water is made to be detached with solid impurity, when gas is by outlet 12, the atomization waste water in gas
Drip content it is extremely low, gas waste water is evaporated after salt formed solid particle and waste water in impurity take out of by liquid header
5, to remaining in the condensation of the vapor in flue gas, the cold plate 502 of interleaved setting is reduced to be evaporated liquid header 5 from waste water
The flue gas flow rate that device 10 flows out ensures that the drop of the waste water in flue gas 100% is condensed, makes stop of the flue gas in liquid header 5
Time lengthening and conducive to waste water drop in condensation process absorb by flue gas heat, realize reduce flue gas heat effect, make
The exhaust gas temperature of power plant reaches set point of temperature, also by setting cold plate 502 and 5 cavity heights of liquid header and cold plate
The air hole ratio on 502 surfaces ensures that flue gas passes through, and prevents the solid particle in Airflow obstruction and flue gas from remaining in liquid header 5
Inside, cold plate 502 be only used for condensation waste water drop it is poor to the condensation effect of vapor, atomization waste water drop through liquid header 5
Condensation is collected, then the waste water of collection is delivered to waste water tank 19 and is evaporated again, and flue gas is gone out admittedly to after reaching electrical dust collector device 13
Body object realizes wastewater zero discharge.
Embodiment 5：
In the actual production process by analysis, equipment of the invention is compared more preferable with other waste evaporator plant economic effects,
Operating cost is lower, and analysis situation is as follows：
| Method or apparatus | One-time investment | The processing cost of water per ton | Device management | Conclusion |
| Chemical precipitation method | 600000 | It is 3.95 first | Need personal management | Processing cost is high, and there are secondary pollution risks |
| Mechanical atomization is evaporated | 1500000 | It is 2.43 first | Need personal management | Disposably speculate of high cost |
| The equipment of the present invention | 250000 | 0.43 yuan | Without personal management | Investment and operating cost are low, and cost of labor is saved without managing |
The prior art of routine techniques dawn known to those skilled in the art in above-described embodiment, therefore no longer retouch in detail herein
It states.
It should be understood that above-described embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it should also be understood that,
After the content of the invention described has been read, those skilled in the art can make various changes or modifications the present invention, these etc.
Valency form is also fallen within the scope of the appended claims of the present application.
Claims (9)
1. the waste water with air preheater steams equipment, including waste evaporator plant（10）, with waste evaporator plant（10）Connection
Waste water tank（19）, it is characterised in that：The waste evaporator plant（10）Entrance connects waste water tank respectively（19）It is filled with SCR denitration
It puts（17）The port of export, the SCR denitration device（17）Arrival end connects economizer（16）, the port of export is also associated with air preheat
Device（15）, the waste evaporator plant（10）Outlet（12）It is connected with liquid header（5）, the liquid header（5）With electricity
Dust-extraction unit（13）Connection, the air preheater（15）Respectively with flood vaporising device（10）The heating mouth of side（8）And electricity
Dust-extraction unit（13）Entrance connects.
2. the waste water according to claim 1 with air preheater steams equipment, it is characterised in that：The liquid header
（5）Air inlet（501）With waste evaporator plant（10）Connection, liquid header（5）Gas outlet（503）With electrical dust collector device
（13）Connection, liquid header（5）Upper and lower end face interleaved is equipped with cold plate（502）, the cold plate（502）Surface is all provided with
Air hole, cold plate（502）With liquid header（5）Cavity heights ratio is 0.7-0.8:1.
3. the waste water according to claim 1 with air preheater steams equipment, it is characterised in that：The waste water evaporation dress
It puts（10）Including housing（11）, the housing（11）Middle part is cylinder, and upper and lower ends are circular cone shape and taper is different, housing
（11）Upper end is equipped with air inlet（6）, the air inlet（6）Lower section, which is equipped with, is located at housing（11）Internal flue gas rectifier（3）, shell
Body（11）Upper end is additionally provided with and flue gas rectifier（3）The water inlet pipe of connection（1）, the water inlet pipe（1）End is connected with atomization spray
Mouth（7）, the atomizer（7）Positioned at flue gas rectifier（3）Lower section, the housing（11）Spiral is equipped in the cylinder at middle part
Pipeline（9）, housing（11）Upper and lower two sides are respectively equipped with heating mouth（8）, the housing（11）Bottom is equipped with outlet（12）.
4. the waste water according to claim 3 with air preheater steams equipment, it is characterised in that：The helical pipe
（9）End is connected with friction plate（2）, the friction plate（2）Housing is arranged in for funnel-form（11）It is interior, maximum gauge end and housing
（11）Inner wall connects, minimum diameter end and helical pipe（9）Arrival end connects, the friction plate（2）On be connected with shunting
Device（4）, the current divider（4）On shaft（402）With flue gas rectifier（3）Bottom surface connects.
5. the waste water according to claim 4 with air preheater steams equipment, it is characterised in that：The current divider（4）
Including shaft（402）, the shaft（402）Side surrounding arranges flabellum（401）, the flabellum（401）End passes through uniformly distributed
Spring（403）It is connected with collecting plate（405）, the collecting plate（405）Surface is evenly equipped with the drag ring of annular（404）, drag ring
（404）With friction plate（2）It is slidably connected.
6. the waste water according to claim 3 with air preheater steams equipment, it is characterised in that：The flue gas rectifier
（3）Surface is all provided with venthole, and air channel is equipped between the venthole.
7. the waste water according to claim 3 with air preheater steams equipment, it is characterised in that：The helical pipe
（9）Surface is equipped with rectangle air dispelling hole（901）, the air dispelling hole（901）Middle part is equipped with two pieces of opposite arc panels（902）, institute
State arc panel（902）Spacing is 0.5-2mm.
8. the waste water according to claim 7 with air preheater steams equipment, it is characterised in that：The arc panel
（902）With air dispelling hole（901）The spatial area and air dispelling hole of formation（901）The ratio of spatial area is 0.33-0.45:1.
9. the waste water according to claim 3 with air preheater steams equipment, it is characterised in that：The housing（11）Side
Face is additionally provided with relief hole（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223536.XA CN108167798A (en) | 2017-11-29 | 2017-11-29 | Waste water with air preheater steams equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223536.XA CN108167798A (en) | 2017-11-29 | 2017-11-29 | Waste water with air preheater steams equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108167798A true CN108167798A (en) | 2018-06-15 |
Family
ID=62524109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711223536.XA Pending CN108167798A (en) | 2017-11-29 | 2017-11-29 | Waste water with air preheater steams equipment |
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| Country | Link |
|---|---|
| CN (1) | CN108167798A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237954A (en) * | 2018-10-25 | 2019-01-18 | 苏州安融石英有限公司 | One kind connecing liquid bottle and its production technology |
| CN112277223A (en) * | 2020-09-18 | 2021-01-29 | 刘锋 | A finished product cooling coiling mechanism for production of PVC coiled material |
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| US4886524A (en) * | 1985-06-28 | 1989-12-12 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for treating waste liquid in wet exhaust gas treating apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109237954A (en) * | 2018-10-25 | 2019-01-18 | 苏州安融石英有限公司 | One kind connecing liquid bottle and its production technology |
| CN112277223A (en) * | 2020-09-18 | 2021-01-29 | 刘锋 | A finished product cooling coiling mechanism for production of PVC coiled material |
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Application publication date: 20180615 |