CN208964577U - A kind of Waste water concentrating liquid stream crystallizing and drying system of air direct emission - Google Patents
A kind of Waste water concentrating liquid stream crystallizing and drying system of air direct emission Download PDFInfo
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- CN208964577U CN208964577U CN201820386464.4U CN201820386464U CN208964577U CN 208964577 U CN208964577 U CN 208964577U CN 201820386464 U CN201820386464 U CN 201820386464U CN 208964577 U CN208964577 U CN 208964577U
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Abstract
The utility model discloses a kind of Waste water concentrating liquid stream crystallizing and drying systems of air direct emission, air is heated to obtain hot-air through heat exchanger from air inlet unit by the system and method, enter using the hot-air as carrier gas from fluidized crystallization drying tower air inlet, filler is blown into micro- floating fluidisation state between transfer roller inner/outer tube；Waste water concentrating liquid by preheating distributes to the atomizer being arranged on transfer roller inner cylinder, atomizing spray is to filler surface and hot-air heat and mass, moisture is walked wet saturated air by hot-air band, salinity in concentrate is hardened in fluidisation state filler surface crystallizing and drying, with the rotation of inner cylinder and the flowing of hot-air, it ground between salt lease making sphere padding, collide to fall off and sink to tower bottom to crystallize through outer cylinder mesh screen and collect cone bucket, dehumidification by condensation after the wet preheated device phase-change heat-exchange of saturated air, dehumidified air direct emission.Air is carrier gas, carrier gas or use flue gas, helium, argon gas, nitrogen, CO2Or the gases such as steam.
Description
Technical field
The utility model relates to field of waste water treatment, are related to the end solidification of waste water, and in particular to a kind of hot-air is direct
The Waste water concentrating liquid stream crystallizing and drying system and method for discharge, the Waste water concentrating liquid can be desulfurization wastewater concentrate, air
Or use flue gas, helium, argon gas, nitrogen, CO2Or the gases such as steam replacement.
Background technique
Desulfurization wastewater Zero discharging system generally comprises pretreatment unit, concentration decrement unit, end solidified cell three parts.
Currently, the end curing technology used both at home and abroad mainly has: evaporative crystallization drying, direct-injection flue crystallizing and drying, side
Road flue crystallizing and drying, hot wind crystallizing and drying.
Evaporative crystallization is dry: evaporation and crystal process consumes a large amount of steam and/or electric power, and land occupation and the floor area of building are big, builds
If higher with O&M cost, equipment scaling and seriously corroded.The dry ton water treatment facilities investment about more than 100 ten thousand of evaporative crystallization；Ton
About more than 100 yuan of water process O&M expense.
Direct-injection flue crystallizing and drying: using direct-injection high-temperature flue crystallizing and drying, consume a large amount of high-temperature flue gas heats, directly drops
Low air preheater efficiency, energy consumption is high, while the risk for having damage deduster, reducing efficiency of dust collection；It is crystallized using direct-injection low temperature flue
It is dry, it is limited by low temperature flue flue-gas temperature and dew-point temperature, transpirable wastewater flow rate is limited, can not evaporating completely.And it deposits
In following problem:
(1) after desulfurization wastewater evaporation, highly corrosive chloride cannot cause it in desulfurization completely by electrostatic precipitator collecting
It is accumulated on tower and follow-up equipment, causes heavy corrosion, significantly increase maintenance of equipment frequency and maintenance cost；
(2) goods and materials such as heavy metal are enriched in flying dust in desulfurization wastewater, the recycling of extreme influence flying dust and the peace of user
Quan Xing.
(3) heavy corrosion and fouling are caused to flue, electrostatic precipitator and upstream device after waste water atomization, influences equipment
Operation steady in a long-term, such as: electrostatic precipitator pole plate fouling reduces efficiency of dust collection, or even influences electrostatic precipitator and operate normally.
(4) atomizer and flue serious wear, along with the corrosion of high concentration chloride, equipment rapid failure.
(5) technique rely primarily on electrostatic precipitator removing evaporative crystallization product, the substance that electrostatic precipitator cannot remove,
Desulfurizing tower is returned to flue gas, continuous circulation collection increases desulfurizing tower load, and it is exceeded to cause the discharges such as PM2.5 and mercury to be easy.
Bypass flue crystallizing and drying: needs, which draw, connects high-temperature flue gas, consumes a large amount of high-temperature flue gas heats, directly reduction air preheater
Efficiency, energy consumption is high, high equipment cost, equipment scaling and seriously corroded.Bypass flue crystallizing and drying ton water treatment facilities are invested about
3000000, and atomization plant replacement is frequent.
Hot wind crystallizing and drying: needing a large amount of steam, and energy consumption is high, and product can not utilize, it is difficult to handle.
Summary of the invention
The utility model aim is to provide a kind of Waste water concentrating liquid stream crystallizing and drying system of hot-air direct emission
And method, to realize the end solidification of Waste water concentrating liquid, which can be desulfurization wastewater concentrate, air or use
Flue gas, helium, argon gas, nitrogen, CO2Or the gases such as steam replacement.
The above-mentioned purpose of the utility model is achieved by following technical solution:
A kind of Waste water concentrating liquid stream crystallizing and drying system of air direct emission, including air inlet unit, waste water are dense
Contracting liquid feed liquor unit and fluidized crystallization drying tower and air-heating unit, Waste water concentrating liquid heating unit；
The lower part of the fluidized crystallization drying tower is equipped with air inlet, and bottom is equipped with crystallization and collects cone bucket, and top is equipped with wet sky
Gas outlet；The transfer roller being made of inner barrel and outer barrel is equipped with inside tower body, outer cylinder is that the peripheral wall that both ends are fixed on tower body wall is net
The tubular structure of sieve-like, inner cylinder are rotatably connected on tower body wall by two shaft end, are set in the space between inner barrel and outer barrel
There is partial size to be greater than the sphere padding in outer cylinder mesh screen aperture；The periphery wall of the inner cylinder is equipped with more hydrojet pipelines, each hydrojet pipeline
Multiple atomizers are equipped with, the end face of a shaft end of inner cylinder is equipped with multiple dispensing orifices corresponding with more hydrojet pipelines, respectively
Dispensing orifice is connected to corresponding hydrojet pipeline, and the endface of the shaft end is additionally provided with a distributing valve being fixed on tower body wall, end face
Close-fitting on distributing valve, the distributing valve be equipped with an inlet opening, as inner cylinder rotates, each dispensing orifice of shaft end successively with the feed liquor
Hole connection；The periphery wall of the inner cylinder is additionally provided with the stirring blade for being stirred in rotation to sphere padding；
The air inlet unit includes air cleaner and blower, and air-heating unit includes First Heat Exchanger, air
Successively enter tower body from the air inlet of fluidized crystallization drying tower by air cleaner, blower, heat exchanger；The First Heat Exchanger
Also it is connected to the heat source heated for air；
The Waste water concentrating liquid feed liquor unit includes Waste water concentrating liquid input duct, one end of the pipeline and the inlet opening
Connection, the other end are Waste water concentrating liquid inlet；The Waste water concentrating liquid heating unit includes being set to Waste water concentrating liquid inlet tube
Preheater on road, the preheated device preheating of Waste water concentrating liquid enter in the intracorporal transfer roller of tower；The preheater also with fluidized crystallization
The humid air outlet of drying tower, direct emission after the preheated device dehumidification by condensation of humid air；
The air is carrier gas, carrier gas or use flue gas, helium, argon gas, nitrogen, CO2Or the gases such as steam.
Further, the Waste water concentrating liquid heating unit further includes that second be set in Waste water concentrating liquid input duct is changed
Hot device enters in the transfer roller in tower body after the preheated device preheating of Waste water concentrating liquid, the heating of the second heat exchanger；Second heat exchanger
Also it is connected to the heat source heated for Waste water concentrating liquid.
Further, the fluidized crystallization drying system further include air inlet modulating mechanism at the tower body air inlet and
Bleed modulation mechanism set on tower body humid air exit；
The air inlet modulating mechanism include inlet gas distributed modulation device and it is multiple be set to inlet gas distributed modulation device under
Horizontal gas flow for being guided the entrance guiding plate for uprush by side；The bleed modulation mechanism includes that exit gas distribution is adjusted
Device processed and multiple outlet deflectors above exit gas distributed modulation device for guiding uprush as horizontal gas flow；
The inlet gas distributed modulation device, exit gas distributed modulation device respectively include intermediate modulation axis body and are set to
Modulate the modulation blade of axis body surrounding；The centre of the modulation axis body of inlet gas distributed modulation device is cylindrical body, and both ends are semicircle
Sphere or cone；The modulation axis body of exit gas distributed modulation device is the cylindrical body that a lower end is semicircle sphere or cone；
The modulation blade is set to the lower end of cylindrical body, including multiple be in tilted layout is used in cylindrical body circumferential direction by vertical ascent gas
Stream is modulated into the blade of spinning updraft；
The exit gas distributed modulation device is located at the vertical direction of inlet gas distributed modulation device.
Further, the entrance guiding plate or outlet deflector respectively by horizontal segment, vertical section and by horizontal segment and
Vertical section connects the segmental arc composition of transition.
Further, stirrup and outer stirrup are equidistant circumferentially fixed in the modulation vanes and are set in gas distribution and adjust
The lower end of the cylindrical body of device processed.
Further, the modulation axis body is hollow structure.
Further, be air or Waste water concentrating liquid heating heat source be hot water, steam or hot fume.
Further, outer tube inner wall bottom is equipped with the scraper plate of multiple raising sphere padding grindings, collision efficiency.
Further, the preheater is multistage bubble column heat exchanger, is equipped with from bottom to top in multistage bubble column multiple
Condenser (condenser is generally finned coil formula condenser, is also possible to the tubular type or plate-type condenser of other forms, such as:
Coiler type condenser, fin plate condenser, plate and frame condenser etc.), the bottom of multistage bubble column is equipped with cold inlet, under
And multiple hot inlets corresponding to each condenser are equipped with, the cold inlet is Waste water concentrating liquid entrance, and the hot-fluid enters
Mouth is connected to the humid air that different temperatures is extracted at the different height of fluidized crystallization drying tower, and multiple hot-fluids by pipeline respectively
Entrance respectively corresponds from bottom to top is connected to the top-down humid air extraction opening of fluidized crystallization drying tower；The side of multistage bubble column
Face is equipped with condensation and produces water out, and top is equipped with the thermal wastewater concentrated solution outlet of cooling dehumidified air outlet and preheating.
A kind of Waste water concentrating liquid stream crystallizing and drying method using above system, comprising: by air from air inlet list
Member heats to obtain hot-air through heat exchanger, enters using the hot-air as carrier gas from the air inlet of fluidized crystallization drying tower, in transfer roller
Sphere padding is blown into micro- floating fluidisation state between outer cylinder；Waste water concentrating liquid by preheating, which is distributed to, to be arranged on transfer roller inner cylinder
Atomizer, atomizing spray to sphere padding surface and hot-air carry out heat and mass, and moisture is taken away to obtain wet full by hot-air
And air, the salinity in concentrate is hardened in fluidisation state sphere padding surface crystallization drying, rotation and hot-air with inner cylinder
It flows, grinding, collision fall off and collect cone bucket through the crystallization that outer cylinder mesh screen sinks to tower bottom between salt lease making sphere padding, wet full
Condensed water and dehumidified air, dehumidified air direct emission are formed with condensation after the preheated device phase-change heat-exchange of air；Air is carrier gas,
Carrier gas uses flue gas, helium, argon gas, nitrogen, CO2Or the gases such as steam.
The basic principle (by taking desulfurization wastewater concentrate as an example, carrier gas is by taking air as an example) of the utility model: hot-air is from tower
Bottom air inlet enters, and is modulated into cyclone flow patterns through gas modulation mechanism, fills inertia sphere padding layer between transfer roller inner/outer tube, blown
Move into micro- floating fluidisation state.Preheating or the desulfurization wastewater concentrate further heated are distributed to through the liquid dispensing apparatus in transfer roller
The atomizer being arranged on transfer roller inner cylinder, atomizing spray to pellet surface and hot-air carry out heat and mass, and moisture vaporization is with gas
Tower body is discharged in body, and salinity is hardened in fluidisation state inertia spherolite surface crystallization drying, with the rotation of transfer roller, and is modulated into tornado flow
The flowing of the hot-air of state, fluidize state inertia spherolite between grinding, collision fall off, rotated with transfer roller, crystallizing and drying salt is through outer cylinder
Sieve, which sinks to tower bottom to collect, to be discharged.The moisture being evaporated is discharged with hot-air, the preheated device recycling of the High Temperature Moist Air of discharge
Heat obtains dehumidified air direct emission, and can output higher degree salinity.
In above-mentioned technical proposal, the air of heating enters tower body from air inlet, with spinning updraft by inertia in tower
Sphere padding blows into micro- floating fluidisation state, and the concentrate of atomizing spray to pellet surface is dry, carries the wet full of moisture
Export and be discharged from humid air with air, salinity fluidisation state inertia spherolite surface crystallization it is dry it is hardened after with spherolite grinding,
Collision, which falls off, collects cone bucket through the crystallization that outer cylinder mesh screen sinks to tower bottom.Air cleaner is used for air filtration, and blower is used for
Power is provided for air.On the one hand heat that preheater is used to collect humid air tentatively preheats desulfurization wastewater concentrate, another
Aspect carries out dehumidification by condensation, the air direct emission of dehumidifying to humid air.Heat exchanger is used for the desulfurization wastewater to air or preheating
Concentrate is heated to required temperature, can be hot water, steam or the hot fume of power plant for the heat source that heat exchanger provides heat.In order to
Tower height is reduced, equipment investment and occupied space is reduced, needs to improve Air Fluidized crystallizing and drying efficiency, air inlet modulating mechanism and row
Gas modulating mechanism can play this effect.Inlet gas distributed modulation device, exit gas distributed modulation device respectively include centre
Modulation axis body and set on modulation axis body surrounding modulation blade.Exit gas distributed modulation device is located at inlet gas distributed modulation
The vertical direction of device, is all located on the center line of tower body；Entrance guiding plate is located at inlet gas distributed modulation in vertical direction
Below device, face air intake pipe in horizontal direction；Outlet deflector is located at exit gas distributed modulation in vertical direction
Above device, face air exhaust pipeline in horizontal direction；Air enters from admission line blows to entrance guiding plate by horizontal fluidised form
Guidance is vertical fluidised form, then blows to inlet gas distributed modulation device and be modulated to rotation rising fluidised form by vertical ascent fluidised form, with spray
Exit gas distributed modulation device, outlet deflector discharge are successively blowed to after drenching the sphere padding mass transfer of concentrate.Exit gas point
The modulation axis body of cloth modulator and a pair of virtual bearing of the modulation axis body picture of inlet gas distributed modulation device, inlet gas distribution are adjusted
Device processed, exit gas distributed modulation device make air-flow be modulated into cyclone flow patterns jointly, realize efficient mass transfer heat transfer, make air inlet/outlet more
Uniformly, space utilization rate greatly improves in tower, and tower height degree is effectively reduced.The centre of the modulation axis body of inlet gas distributed modulation device
For cylindrical body, both ends are semicircle sphere or cone, and rotation modulation intensity of the modulation blade to gas, exit gas can be enhanced
The lower end semicircle sphere or cone of the modulation axis body of distributed modulation device have same effect.
The advantages of the utility model:
1, heat and mass is high-efficient: the built-in ball rate of transfer roller is high, and inertia sphere padding is in micro- floating state in tower, and using straight
Heat exchange is connect, heat and mass area is significantly increased, heat and mass is high-efficient；2, anti-fouling performance is extremely strong: heat and mass main body-inertia
Sphere padding is in micro- floating state in tower, and moves with transfer roller, and anti-fouling performance is extremely strong；3, process equipment is simple, small investment, accounts for
Ground area is small；4, stable and reliable operation；5, operating cost is low: heat source uses 120-150 DEG C of hot fume before coal-burning power plant's deduster
[being also possible to other heat sources, such as steam], hot blast rate is smaller, is heated using fume afterheat, almost without operating cost.
Detailed description of the invention
Fig. 1 be desulfurization wastewater concentrate fluidized crystallization drying system structural schematic diagram (desulfurization wastewater concentrate is only pre-
Heat)；
Fig. 2 be desulfurization wastewater concentrate fluidized crystallization drying system structural schematic diagram (desulfurization wastewater concentrate preheat simultaneously
Heating)；
Fig. 3 is the structural schematic diagram of inlet gas distributed modulation device；
Fig. 4 is the structural schematic diagram of the modulation blade of inlet gas distributed modulation device；
Fig. 5 is the structural schematic diagram of inlet gas distributed modulation device and entrance guiding plate；
Fig. 6 is exit gas distributed modulation device and the structural schematic diagram for exporting deflector；
Fig. 7 is the structural schematic diagram of transfer roller；
Fig. 8 is the dispensing orifice end view and distributing valve structural schematic diagram of inner cylinder；
Fig. 9 is the structural schematic diagram of the end face opposite with dispensing orifice of inner cylinder；
Figure 10 is the structural schematic diagram of inner cylinder and hydrojet pipeline, distributing valve；
Figure 11 is the connection relationship of fluidized crystallization drying tower and bubble column in Fig. 1 fluidized crystallization drying system；
Figure 12 is the connection relationship of fluidized crystallization drying tower and bubble column in Fig. 2 fluidized crystallization drying system；
Wherein, 21- entrance guiding plate, 22- export deflector, and 23- modulates axis body, 24- blade, stirrup in 25-, outside 26-
Stirrup, 31- inner cylinder, 32- outer cylinder, 33- sphere padding, 34- hydrojet pipeline, 35- atomizer, 36- dispensing orifice, 37- distributing valve,
38- inlet opening, 39- stir blade, 40- scraper plate, and 41- is connected to the pipeline of hydrojet pipeline and dispensing orifice, 42- desulfurization wastewater concentrate
Entrance, 43- stir blade.
Specific embodiment
The essentiality content of the utility model is specifically introduced below with reference to embodiment, but the utility model is not limited with this
Protection scope.The routine test operation that the test operation not being described in detail in experiment is well known to the skilled person.
Following embodiments are by taking desulfurization wastewater as an example, and carrier gas is by taking air as an example.
A kind of desulfurization wastewater concentrate fluidized crystallization drying system of air direct emission as shown in Figure 1, including air into
Gas unit, desulfurization wastewater concentrate feed liquor unit and fluidized crystallization drying tower and air-heating unit, desulfurization wastewater concentrate add
Hot cell；
The lower part of the fluidized crystallization drying tower is equipped with air inlet, and bottom is equipped with crystallization and collects cone bucket, and top is equipped with wet sky
Gas outlet；The transfer roller being made of inner barrel and outer barrel is equipped with inside tower body, outer cylinder is that the peripheral wall that both ends are fixed on tower body wall is net
The tubular structure of sieve-like, inner cylinder are rotatably connected on tower body wall by two shaft end, are set in the space between inner barrel and outer barrel
There is partial size to be greater than the sphere padding in outer cylinder mesh screen aperture；The periphery wall of the inner cylinder is equipped with more hydrojet pipelines, each hydrojet pipeline
Multiple atomizers are equipped with, the end face of a shaft end of inner cylinder is equipped with multiple dispensing orifices corresponding with more hydrojet pipelines, respectively
Dispensing orifice is connected to corresponding hydrojet pipeline, and the endface of the shaft end is additionally provided with a distributing valve being fixed on tower body wall, end face
Close-fitting on distributing valve, the distributing valve be equipped with an inlet opening, as inner cylinder rotates, each dispensing orifice of shaft end successively with the feed liquor
Hole connection；The periphery wall of the inner cylinder is additionally provided with stirring blade (such as Fig. 7-for being stirred in rotation to sphere padding
Shown in 10)；
The air inlet unit includes air cleaner and blower, and air-heating unit includes First Heat Exchanger, air
Successively enter tower body from the air inlet of fluidized crystallization drying tower by air cleaner, blower, heat exchanger；The First Heat Exchanger
Also it is connected to the heat source heated for air；
The desulfurization wastewater concentrate feed liquor unit includes desulfurization wastewater concentrate input duct, one end of the pipeline and institute
Inlet opening connection is stated, the other end is desulfurization wastewater concentrate inlet；The desulfurization wastewater concentrate heating unit includes being set to
Preheater in desulfurization wastewater concentrate input duct, the preheated device preheating of desulfurization wastewater concentrate enter the intracorporal transfer roller of tower
In；The preheater also with the humid air outlet of fluidized crystallization drying tower, after the preheated device dehumidification by condensation of humid air directly
Discharge.
The desulfurization wastewater concentrate fluidized crystallization drying system of a kind of air direct emission as shown in Figure 2, in Fig. 1 system
On the basis of, the desulfurization wastewater concentrate heating unit further includes the second heat exchange in desulfurization wastewater concentrate input duct
Device enters in the transfer roller in tower body after the preheated device preheating of desulfurization wastewater concentrate, the heating of the second heat exchanger；Second heat exchange
Device is also connected to the heat source heated for desulfurization wastewater concentrate.
In fluidized crystallization drying system shown in Fig. 1 and 2, the fluidized crystallization drying system further include be set to tower body into
Air inlet modulating mechanism at port and the bleed modulation mechanism (as seen in figures 3-6) set on tower body humid air exit；
The air inlet modulating mechanism include inlet gas distributed modulation device and it is multiple be set to inlet gas distributed modulation device under
Horizontal gas flow for being guided the entrance guiding plate for uprush by side；The bleed modulation mechanism includes that exit gas distribution is adjusted
Device processed and multiple outlet deflectors above exit gas distributed modulation device for guiding uprush as horizontal gas flow；
The inlet gas distributed modulation device, exit gas distributed modulation device respectively include intermediate modulation axis body and are set to
Modulate the modulation blade of axis body surrounding；The centre of the modulation axis body of inlet gas distributed modulation device is cylindrical body, and both ends are semicircle
Sphere or cone；The modulation axis body of exit gas distributed modulation device is the cylindrical body that a lower end is semicircle sphere or cone；
The modulation blade is set to the lower end of cylindrical body, including multiple be in tilted layout is used in cylindrical body circumferential direction by vertical ascent gas
Stream is modulated into the blade of spinning updraft；
The exit gas distributed modulation device is located at the vertical direction of inlet gas distributed modulation device.
Wherein, the entrance guiding plate or outlet deflector are respectively by horizontal segment, vertical section and by horizontal segment and vertically
The segmental arc composition of section connection transition；Stirrup and outer stirrup are equidistant circumferentially fixed in the modulation vanes and are set in gas
The lower end of the cylindrical body of distributed modulation device；The modulation axis body is hollow structure；It is heated for air or desulfurization wastewater concentrate
Heat source is hot water, steam or hot fume；Outer tube inner wall bottom is equipped with the scraper plate of multiple raising sphere padding grindings, collision efficiency.
The preheater is multistage bubble column heat exchanger, the connection relationship such as figure of fluidized crystallization drying tower and bubble column
11, being equipped with multiple coiled tube condensers from bottom to top shown in 12, in multistage bubble column, (the present embodiment is condensed using finned coil formula
Device is also possible to the tubular type or plate-type condenser of other forms, such as: coiler type condenser, fin plate condenser, plate and frame are cold
Condenser etc.), the bottom of multistage bubble column is equipped with cold inlet, is equipped with multiple heat corresponding to each coiled tube condenser from bottom to top
Inflow entrance, the cold inlet are desulfurization wastewater concentrate entrance, and the hot inlet passes through pipeline respectively and is connected to fluidisation knot
The humid air of different temperatures is extracted at the different height of brilliant drying tower, and multiple hot inlets respectively correspond be connected to from bottom to top
The top-down humid air extraction opening of fluidized crystallization drying tower；The side of multistage bubble column is equipped with condensation and produces water out, and top is set
There is the thermally desulfurizing Waste water concentrating liquid outlet of cooling dehumidified air outlet and preheating.
A kind of desulfurization wastewater concentrate fluidized crystallization drying means using above system, comprising: by air from air into
Gas unit heats to obtain hot-air through heat exchanger, enters using the hot-air as carrier gas from the air inlet of fluidized crystallization drying tower, turns
Sphere padding is blown into micro- floating fluidisation state between roller inner/outer tube；Desulfurization wastewater concentrate by preheating, which is distributed to be arranged in, to be turned
Atomizer on roller inner cylinder, atomizing spray to sphere padding surface and hot-air carry out heat and mass, and moisture is taken away by hot-air
Obtain wet saturated air, the salinity in concentrate fluidisation state sphere padding surface crystallization drying it is hardened, with inner cylinder rotation and
The flowing of hot-air, grinding, collision fall off and sink through outer cylinder mesh screen to the crystallization collection of tower bottom between salt lease making sphere padding
Cone bucket, condensation forms condensed water and dehumidified air, dehumidified air direct emission after the wet preheated device phase-change heat-exchange of saturated air.
In addition, different operating section answers design sample mouth, observation panel, access hole, the convenient sampling of observation at any time, observation, opening
Maintenance checks internal part；Different operating section should configure pressure gauge, thermometer.Tower body sectional making, flanged joint.Different portions
The material of part should select material according to the ingredient and concentration of contact medium.Resistant material can according to the ingredient of contact medium and
The rubber or plastics that concentration selects carbon steel liner heatproof >=100 DEG C are [such as: polytetrafluoroethylene (PTFE), glass reinforced plastic, PP polypropylene, glass squama
Piece etc.] or metal [such as: stainless steel, titanium alloy, C276,1.4529] or the plastics of heatproof >=100 DEG C are [such as: polytetrafluoroethyl-ne
Alkene, glass reinforced plastic, PP polypropylene etc.].
In above-mentioned technical proposal, the air of heating enters tower body from air inlet, with spinning updraft by inertia in tower
Sphere padding blows into micro- floating fluidisation state, and the concentrate of atomizing spray to pellet surface is dry, carries the wet full of moisture
Export and be discharged from humid air with air, salinity fluidisation state inertia spherolite surface crystallization it is dry it is hardened after with spherolite grinding,
Collision, which falls off, collects cone bucket through the crystallization that outer cylinder mesh screen sinks to tower bottom.Air cleaner is used for air filtration, and blower is used for
Power is provided for air.On the one hand heat that preheater is used to collect humid air tentatively preheats desulfurization wastewater concentrate, another
Aspect carries out dehumidification by condensation, the air direct emission of dehumidifying to humid air.Heat exchanger is used for the desulfurization wastewater to air or preheating
Concentrate is heated to required temperature, can be hot water, steam or the hot fume of power plant for the heat source that heat exchanger provides heat.In order to
Tower height is reduced, equipment investment and occupied space is reduced, needs to improve Air Fluidized crystallizing and drying efficiency, air inlet modulating mechanism and row
Gas modulating mechanism can play this effect.Inlet gas distributed modulation device, exit gas distributed modulation device respectively include centre
Modulation axis body and set on modulation axis body surrounding modulation blade.Exit gas distributed modulation device is located at inlet gas distributed modulation
The vertical direction of device, is all located on the center line of tower body；Entrance guiding plate is located at inlet gas distributed modulation in vertical direction
Below device, face air intake pipe in horizontal direction；Outlet deflector is located at exit gas distributed modulation in vertical direction
Above device, face air exhaust pipeline in horizontal direction；Air enters from admission line blows to entrance guiding plate by horizontal fluidised form
Guidance is vertical fluidised form, then blows to inlet gas distributed modulation device and be modulated to rotation rising fluidised form by vertical ascent fluidised form, with spray
Exit gas distributed modulation device, outlet deflector discharge are successively blowed to after drenching the sphere padding mass transfer of concentrate.Exit gas point
The modulation axis body of cloth modulator and a pair of virtual bearing of the modulation axis body picture of inlet gas distributed modulation device, inlet gas distribution are adjusted
Device processed, exit gas distributed modulation device make air-flow be modulated into cyclone flow patterns jointly, realize efficient mass transfer heat transfer, make air inlet/outlet more
Uniformly, space utilization rate greatly improves in tower, and tower height degree is effectively reduced.The centre of the modulation axis body of inlet gas distributed modulation device
For cylindrical body, both ends are semicircle sphere or cone, and rotation modulation intensity of the modulation blade to gas, exit gas can be enhanced
The lower end semicircle sphere or cone of the modulation axis body of distributed modulation device have same effect.
System and method provided by the utility model can have compared with the prior art with efficient drying desulfurization wastewater concentrate
Following advantage:
1, heat and mass is high-efficient: the built-in ball rate of transfer roller is high, and inertia sphere padding is in micro- floating state in tower, and using straight
Heat exchange is connect, heat and mass area is significantly increased, heat and mass is high-efficient；2, anti-fouling performance is extremely strong: heat and mass main body-inertia
Sphere padding is in micro- floating state in tower, and moves with transfer roller, and anti-fouling performance is extremely strong；3, process equipment is simple, small investment, accounts for
Ground area is small；4, stable and reliable operation；5, operating cost is low: heat source uses 120-150 DEG C of hot fume before coal-burning power plant's deduster
[being also possible to other heat sources, such as steam], hot blast rate is smaller, is heated using fume afterheat, almost without operating cost.
The effect of above-described embodiment is specifically to introduce the essentiality content of the utility model, but those skilled in the art answer
When knowing, the protection scope of the utility model should not be confined to the specific embodiment.
Claims (9)
1. a kind of Waste water concentrating liquid stream crystallizing and drying system of air direct emission, it is characterised in that: including air inlet list
Member, Waste water concentrating liquid feed liquor unit and fluidized crystallization drying tower and air-heating unit, Waste water concentrating liquid heating unit；
The lower part of the fluidized crystallization drying tower is equipped with air inlet, and bottom is equipped with crystallization and collects cone bucket, and top goes out equipped with humid air
Mouthful；The transfer roller being made of inner barrel and outer barrel is equipped with inside tower body, outer cylinder is that the peripheral wall that both ends are fixed on tower body wall is mesh
Tubular structure, inner cylinder is rotatably connected on tower body wall by two shaft end, and grain is equipped in the space between inner barrel and outer barrel
Diameter is greater than the sphere padding in outer cylinder mesh screen aperture；The periphery wall of the inner cylinder is equipped with more hydrojet pipelines, sets on each hydrojet pipeline
There are multiple atomizers, the end face of a shaft end of inner cylinder is equipped with multiple dispensing orifices corresponding with more hydrojet pipelines, each to distribute
Hole is connected to corresponding hydrojet pipeline, and the endface of the shaft end is additionally provided with a distributing valve being fixed on tower body wall, end face close-fitting
On distributing valve, which is equipped with an inlet opening, and as inner cylinder rotates, each dispensing orifice of shaft end successively connects with the inlet opening
It is logical；The periphery wall of the inner cylinder is additionally provided with the stirring blade for being stirred in rotation to sphere padding；
The air inlet unit includes air cleaner and blower, and air-heating unit includes First Heat Exchanger, and air is successively
Enter tower body from the air inlet of fluidized crystallization drying tower by air cleaner, blower, heat exchanger；The First Heat Exchanger also with
For the heat source connection of air heating；
The Waste water concentrating liquid feed liquor unit includes Waste water concentrating liquid input duct, and one end of the pipeline and the inlet opening connect
Logical, the other end is Waste water concentrating liquid inlet；The Waste water concentrating liquid heating unit includes being set to Waste water concentrating liquid input duct
On preheater, the preheated device preheating of Waste water concentrating liquid enters in the intracorporal transfer roller of tower；The preheater is also dry with fluidized crystallization
The humid air outlet of dry tower, direct emission after the preheated device dehumidification by condensation of humid air；
The air is carrier gas, carrier gas or use flue gas, helium, argon gas, nitrogen, CO2Or steam.
2. fluidized crystallization drying system according to claim 1, it is characterised in that: the Waste water concentrating liquid heating unit is also
Including the second heat exchanger being set in Waste water concentrating liquid input duct, the preheated device preheating of Waste water concentrating liquid, the second heat exchanger add
Enter in the transfer roller in tower body after heat；Second heat exchanger is also connected to the heat source heated for Waste water concentrating liquid.
3. fluidized crystallization drying system according to claim 1 or 2, it is characterised in that: further include being set to tower body air inlet
The air inlet modulating mechanism at place and bleed modulation mechanism set on tower body humid air exit；
The air inlet modulating mechanism includes that inlet gas distributed modulation device and multiple be set to below inlet gas distributed modulation device are used
In horizontal gas flow to be guided to the entrance guiding plate for uprush；The bleed modulation mechanism includes exit gas distributed modulation device
With multiple outlet deflectors above exit gas distributed modulation device for guiding uprush as horizontal gas flow；
The inlet gas distributed modulation device, exit gas distributed modulation device respectively include intermediate modulation axis body and are set to modulation
The modulation blade of axis body surrounding；The centre of the modulation axis body of inlet gas distributed modulation device is cylindrical body, and both ends are semicircle sphere
Or cone；The modulation axis body of exit gas distributed modulation device is the cylindrical body that a lower end is semicircle sphere or cone；It is described
The lower end that blade is set to cylindrical body is modulated, including multiple be in tilted layout is used in cylindrical body circumferential direction by vertical ascent air-flow tune
The blade of spinning updraft is made；
The exit gas distributed modulation device is located at the vertical direction of inlet gas distributed modulation device.
4. fluidized crystallization drying system according to claim 3, it is characterised in that: the entrance guiding plate or outlet water conservancy diversion
Horizontal segment is connected by horizontal segment, vertical section and with vertical section the segmental arc of transition and formed by plate respectively.
5. fluidized crystallization drying system according to claim 3, it is characterised in that: stirrup and outer in the modulation vanes
Stirrup is equidistant circumferentially fixed and the lower end of the cylindrical body that is set in gas distributed modulation device.
6. fluidized crystallization drying system according to claim 3, it is characterised in that: the modulation axis body is hollow structure.
7. fluidized crystallization drying system according to claim 1 or 2, it is characterised in that: add for air or Waste water concentrating liquid
The heat source of heat is hot water, steam or hot fume.
8. fluidized crystallization drying system according to claim 1 or 2, it is characterised in that: outer tube inner wall bottom is equipped with multiple
Improve the scraper plate of sphere padding grinding, collision efficiency.
9. fluidized crystallization drying system according to claim 1 or 2, it is characterised in that: the preheater is multistage bubble-cap
Tower heat exchanger is equipped with multiple condensers in multistage bubble column from bottom to top, and the bottom of multistage bubble column is equipped with cold inlet, from
It is equipped with multiple hot inlets corresponding to each condenser down, the cold inlet is Waste water concentrating liquid entrance, the hot-fluid
Entrance passes through pipeline respectively and is connected to the humid air for extracting different temperatures at the different height of fluidized crystallization drying tower, and multiple heat
Inflow entrance respectively corresponds from bottom to top is connected to the top-down humid air extraction opening of fluidized crystallization drying tower；Multistage bubble column
Side is equipped with condensation and produces water out, and top is equipped with the thermal wastewater concentrated solution outlet of cooling dehumidified air outlet and preheating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386464.4U CN208964577U (en) | 2018-03-21 | 2018-03-21 | A kind of Waste water concentrating liquid stream crystallizing and drying system of air direct emission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386464.4U CN208964577U (en) | 2018-03-21 | 2018-03-21 | A kind of Waste water concentrating liquid stream crystallizing and drying system of air direct emission |
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| CN208964577U true CN208964577U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820386464.4U Expired - Fee Related CN208964577U (en) | 2018-03-21 | 2018-03-21 | A kind of Waste water concentrating liquid stream crystallizing and drying system of air direct emission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178218A (en) * | 2018-03-21 | 2018-06-19 | 张建东 | A kind of Waste water concentrating liquid stream crystallizing and drying system and method for air direct emission |
| CN117308678A (en) * | 2023-09-05 | 2023-12-29 | 广东恒生石化实业有限公司 | Waste heat recovery device of flue gas desulfurization tower |
-
2018
- 2018-03-21 CN CN201820386464.4U patent/CN208964577U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178218A (en) * | 2018-03-21 | 2018-06-19 | 张建东 | A kind of Waste water concentrating liquid stream crystallizing and drying system and method for air direct emission |
| CN108178218B (en) * | 2018-03-21 | 2023-06-30 | 张建东 | System and method for crystallizing and drying wastewater concentrate by directly discharging air |
| CN117308678A (en) * | 2023-09-05 | 2023-12-29 | 广东恒生石化实业有限公司 | Waste heat recovery device of flue gas desulfurization tower |
| CN117308678B (en) * | 2023-09-05 | 2024-03-26 | 广东恒生石化实业有限公司 | Waste heat recovery device of flue gas desulfurization tower |
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Granted publication date: 20190611 |