CN206278930U - A kind of flue gas desulfurization byproduct low-temperature oxidation device - Google Patents
A kind of flue gas desulfurization byproduct low-temperature oxidation device Download PDFInfo
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- CN206278930U CN206278930U CN201621288114.1U CN201621288114U CN206278930U CN 206278930 U CN206278930 U CN 206278930U CN 201621288114 U CN201621288114 U CN 201621288114U CN 206278930 U CN206278930 U CN 206278930U
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Abstract
The utility model discloses a kind of flue gas desulfurization byproduct low-temperature oxidation device, belong to desulfurizing byproduct resource applied technical field.The utility model includes oxidation unit and agitation grinding unit, wherein oxidation unit includes oxidation air blowing part and grinding oxidation chamber, oxidation air blowing part is located at the bottom of grinding oxidation chamber, oxidation air blowing part is used to blast oxygen-enriched air to grinding oxidation chamber, and described grinding oxidation chamber is made up of arc ground section and milling gap section；Described agitation grinding unit includes motor and agitation grinding blade, and agitation grinding blade is provided with motor, and the provided circumferentially about of the agitation grinding blade has blade to grind circular arc；There is grinding motion with arc ground section in the driving inferior lobe slice lapping circular arc of motor.It is of the present utility model that interval grinding is carried out during oxidation so that the particle of removal surface indissoluble thing can be combined with the oxygen in solution in time, so as to promote the Quick Oxidation of desulfurizing byproduct.
Description
Technical field
The utility model is related to the resource application field of desulfurizing byproduct, more specifically to a kind of flue gas desulfurization
Accessory substance low-temperature oxidation device.
Background technology
With the lasting fast development of China's steel and iron industry, produced problem of environmental pollution is very prominent, and especially " three
It is useless " discharge aspect enjoys the highest attention of country, by SO in " the steel and iron industry emission standard " of newest revision2Discharge
Used as one of important content, mandatory provisions steel industry wants time limit to realize CER and flue gas qualified discharge for control.In China
Iron and steel enterprise, SO2Discharge capacity is only second to the discharge capacity of power industry and Industrial Boiler, occupies the 3rd, and the SO of iron and steel enterprise's discharge2
Middle 50%-70% comes from sintering circuit, and flue gas desulfurization is sintered using semi-dry desulphurization technology, not only invests low, and desulfurization
Rate is higher, but substantial amounts of desulfurizing byproduct is generated during semi-dry desulphurization, at present, only small part desulfurization both at home and abroad
Accessory substance is utilized, and the overwhelming majority is abandoned, if do not utilized rationally, it will is caused secondary pollution and is taken a large amount of soil
Ground.
In order to realize the resource application to desulfurizing byproduct, colleges and universities and enterprise are high to sintering deposit flue gas desulfurization byproduct attached
Value added utilization has carried out numerous studies, it is found that preparing calcium sulfate crystal whiskers using sintering flue gas desulfurization accessory substance has higher adding
Value, calcium sulfate crystal whiskers are a kind of chopped fibers grown with single crystal form, and it has uniform cross section, complete profile and height
The perfect internal structure of degree, compared with glass fibre, advantage is that it has high intensity, and trickle size is more easy to and tree
The organic high molecular compounds such as fat, rubber, plastics are combined, and the presentation quality of product is excellent.
Due to CaSO in desulfurizing byproduct3Content it is higher, limit desulfurizing byproduct directly use, desulfurizing byproduct
Before calcium sulfate crystal whiskers are prepared, it is desirable to which desulfurizing byproduct carries out sufficient oxidation modification treatment, it usually needs closed
Desulfurizing byproduct is heated to promote CaSO in container3Oxidation.On the one hand existing method for oxidation is difficult to desulfurization by-product
Thing it is fully oxidized, so as to limit the value added applications of desulfurizing byproduct；On the other hand the method for oxidation energy consumption is big, desulfurization
Accessory substance oxidation is with high costs, so as to limit the resource application of desulfurizing byproduct.
The Shi Peiyang of Northeastern University has been also carried out first closing research, and has applied for Patents：Using sintering deposit flue gas desulfurization
Accessory substance prepares the method (application number of calcium sulfate crystal whiskers：201010545829.1；The applying date：2010.11.16) and flue gas is utilized
Desulfurated plaster prepares the method (application number of calcium sulfate crystal whiskers：200810011193.5；The applying date：2008.04.25), it is same right
Desulfurizing byproduct carries out high-temperature oxydation and is modified, its high temperature it is modified oxidized, the modified oxidized temperature of high temperature is 110 DEG C -300
DEG C, high-temperature oxydation improves the oxidation efficiency of desulfurizing byproduct sulfite calcium.But, existing personnel are devoted in height always
The method for oxidation of desulfurizing byproduct is researched and developed under the conditions of temperature, and to be generally believed and be difficult to the effective of desulfurizing byproduct under cryogenic conditions
Oxidation, and the low-temperature oxidation of the desulfurizing byproduct that present application is proposed breaks the technology prejudice.
This is the oxygenation efficiency that desulfurizing byproduct is although improve due to high-temperature oxidation method, for 110 DEG C -300 DEG C of height
Temperature is fully oxidized, it is necessary to the efficient oxidation of desulfurizing byproduct in high-pressure closed vessel；The method needs to build enclosed high pressure
Environment, and need to the oxidant that complexity is added in desulfurizing byproduct solution so that oxidation is with high costs, it is difficult to realize desulfurization
The commercial application of accessory substance.Therefore, exigence develops a kind of oxidation of the desulfurizing byproduct suitable for commercial Application
Reforming apparatus, so that for the high efficient resourcing application of desulfurizing byproduct lays the foundation.
Utility model content
1. the utility model technical problem to be solved
The purpose of this utility model is to overcome in the prior art, and low temperature is difficult to during desulfurizing byproduct is modified
A kind of problem of oxidation, there is provided flue gas desulfurization byproduct low-temperature oxidation device, substantially increases the low-temperature oxidation of desulfurizing byproduct
Rate, is that the high efficient resourcing application of desulfurizing byproduct lays the foundation.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the utility model is provided is：
A kind of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model, including oxidation unit,
The oxidation unit includes oxidation air blowing part and grinding oxidation chamber, wherein oxidation air blowing part is located at grinding aoxidizing
The bottom of cavity, oxidation air blowing part is used to blast oxygen-enriched air to grinding oxidation chamber, and described grinding oxidation chamber is by arc
Shape ground section and milling gap section composition；
Agitation grinding unit, the agitation grinding unit includes motor and agitation grinding blade, described motor
On be provided with agitation grinding blade, the agitation grinding blade it is provided circumferentially about have blade grind circular arc；Above-mentioned agitation grinding
Blade is located in grinding oxidation chamber, and the blade grinding circular arc of agitation grinding blade is engaged with arc ground section, is driving
There is grinding motion with arc ground section in the driving inferior lobe slice lapping circular arc of motor.
Preferably, described arc ground section is equal to arc ground section and stirs with the distance of agitation grinding blade center of rotation
The distance of grinding blade center of rotation is mixed, and the arc radius of arc ground section are identical with the arc radius of blade grinding circular arc.
Preferably, described milling gap section is more than arc ground section and stirs with the distance of agitation grinding blade center of rotation
Mix the distance of grinding blade center of rotation.
Preferably, the cross section of described grinding oxidation chamber is ellipse, is at described oval minor axis vertex
Arc ground section.
Preferably, described oxidation unit also includes cone-shaped collection storehouse, and the cone-shaped collection storehouse is back taper, described oxidation
Air blowing part is connected by cone-shaped collection storehouse with grinding oxidation chamber.
Preferably, described agitation grinding unit also includes motor driving shaft and blade connecting rod, described motor
It is connected with blade connecting rod by motor driving shaft, agitation grinding blade is provided with the blade connecting rod.
Preferably, the bottom of described motor driving shaft is provided with drive shaft top blast stomata.
Preferably, blade chamfering is provided with described agitation grinding blade.
Preferably, Ceramic Balls are laid in described oxidation air blowing part.
Preferably, heating water bath case is provided with outside described grinding oxidation chamber.
3. beneficial effect
The technical scheme provided using the utility model, compared with existing known technology, with following remarkable result：
(1) a kind of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model, grinds desulfurizing byproduct particle table
The indissoluble thing grinding removal in face, that is, will be attached to the calcium sulfate of the desulfurizing byproduct particle surface quilt in the presence of mechanical force grinding
Grinding removal so that the calcium sulfite inside particle is exposed to particle surface, promotes oxygen molecule with calcium sulfite surface
Contact so that the calcium sulfite in desulfurizing byproduct is constantly contacted with oxygen, accelerates and promotes calcium sulfite inside particle
Oxidation, and substantially increase the oxygenation efficiency of calcium sulfate in desulfurizing byproduct so that SO3 2-Oxygenation efficiency reach 78.52%, desulfurization
Accessory substance is effectively aoxidized.
(2) a kind of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model, carries out interval during oxidation
Grinding, that is, ensure that and remove the indissoluble thing on desulfurizing byproduct surface, in turn ensure that after grinding desulfurizing byproduct in time with stirring
Grinding blade is separated so that the particle of removal surface indissoluble thing can be combined with the oxygen in solution in time, so as to promote desulfurization by-product
The Quick Oxidation of thing；
(3) a kind of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model, leaf is provided with agitation grinding blade
Piece chamfering, blade chamfering promotes desulfurizing byproduct particle and enters the gap between arc ground section and blade chamfering, so as to promote
The mechanical lapping of desulfurizing byproduct particle is entered；
(4) a kind of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model, motor driving shaft bottom is provided with drive
Moving axis top blast stomata, oxygen-enriched air can be equally blown into grinding oxidation chamber by drive shaft top blast stomata during grinding oxidation
Under the collective effect of body, drive shaft top blast stomata and bottom blowing stomata, desulfurizing byproduct particle and liquid are constantly aoxidized by grinding
The central motion of cavity promotes desulfurizing byproduct particle to occur in arc ground section to the arc ground section for grinding oxidation chamber
Mechanical lapping, so as to accelerate the oxidation effectiveness of desulfurizing byproduct particle；
(5) a kind of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model, milling gap section on be provided between
Gap section gas hole, gap section gas hole is blown into oxygen-enriched air, the blowing gas stream of gap section gas hole simultaneously to grinding oxidation chamber
Amount prevents desulfurizing byproduct particle long in the milling gap section residence time, so as to promote less than the air blowing flow of bottom blowing stomata
Desulfurization particle is aoxidized and ground.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model；
Fig. 2 is a kind of signal of the agitation grinding unit of flue gas desulfurization byproduct low-temperature oxidation device of the present utility model
Figure；
Fig. 3 is the elevational schematic view of agitation grinding unit of the present utility model；
Fig. 4 is the structural representation of embodiment of the present utility model 4；
Fig. 5 is the structural representation of embodiment of the present utility model 5；
Fig. 6 is the structural representation of embodiment of the present utility model 6；
Fig. 7 is the scanning electron microscopic picture of calcium sulfate crystal whiskers prepared by embodiment of the present utility model 1.
Label declaration in schematic diagram：
100th, oxidation unit；110th, air blowing part is aoxidized；111st, bottom blowing stomata；120th, cone-shaped collection storehouse；130th, oxygen is ground
Change cavity；131st, arc ground section；132nd, milling gap section；133rd, gap section gas hole；140th, heating water bath case；
200th, agitation grinding unit；210th, motor；220th, motor driving shaft；221st, drive shaft top blast stomata；230、
Blade connecting rod；231st, connecting rod top blast stomata；232nd, connecting rod horizontal air hole；240th, agitation grinding blade；241st, blade falls
Angle；242nd, blade grinding circular arc.
Specific embodiment
Hereafter the detailed description to exemplary embodiment of the present utility model with reference to accompanying drawing, and the accompanying drawing forms the one of description
Part, shows the enforceable exemplary embodiment of the utility model as an example in the figure.Although these exemplary realities
Apply example to be described in sufficient detail to enable that those skilled in the art implement the utility model, it is to be understood that it can be realized
His embodiment and can various changes can be made to the utility model in the case where spirit and scope of the present utility model are not departed from.Hereafter
More detailed description to embodiment of the present utility model is not limited to required scope of the present utility model, and only
Do not limit to be illustrated and the characteristics of to the utility model and feature description, with propose perform it is of the present utility model
Best mode, and be sufficient so that those skilled in the art and can implement the utility model.Therefore, scope of the present utility model only by
Appended claims are limited.
Hereafter detailed description of the present utility model and example embodiment can be more fully understood with reference to accompanying drawing, wherein this reality
Identified by reference with new element and feature.
Embodiment 1
The oxidation unit of the present embodiment includes oxidation unit 100 and agitation grinding unit 200, and wherein oxidation unit 100 is wrapped
Oxidation air blowing part 110, cone-shaped collection storehouse 120 and grinding oxidation chamber 130 are included, wherein oxidation air blowing part 110 is located at grinding
The bottom of oxidation chamber 130, oxidation air blowing part 110 is used to blast oxygen-enriched air, oxidation air blowing portion to grinding oxidation chamber 130
4-8 layers of Ceramic Balls are laid in part 110, preferably 5 layers, Ceramic Balls promote being uniformly distributed for oxygen-enriched air；Grinding oxidation chamber
130 are made up of arc ground section 131 and milling gap section 132；Above-mentioned cone-shaped collection storehouse 120 is back taper, oxidation air blowing portion
Part 110 is connected by cone-shaped collection storehouse 120 with grinding oxidation chamber 130.Bottom blowing stomata is provided with oxidation air blowing part 110
111, bottom blowing stomata 111 is used to be blown into oxygen-enriched air in grinding oxidation chamber 130.
After desulfurizing byproduct solution is added into oxidation unit, desulfurizing byproduct sinks down into bottom under gravity, due to
Cone-shaped collection storehouse 120 is back taper, and desulfurizing byproduct particle ash is automatically gathered in cone-shaped collection storehouse 120 under gravity
In, oxygen-enriched air is blown into oxidation unit by oxidation air blowing part 110, under the driving of oxygen-enriched air, is deposited on cone-shaped collection storehouse
120 desulfurizing byproduct particle is moved in the grinding oxidation chamber 130 at the top of oxidation unit, is revolved in agitation grinding blade 240
Turn in the presence of stirring, desulfurizing byproduct particle moves to the inner wall edge position of grinding oxidation chamber 130 and oxidation occurs instead
Should, it is gathered in once more in the cone-shaped collection storehouse 120 of bottom under gravity after the oxidation of partial desulfurization byproduct particles, bottom
Oxidation air blowing part 110 desulfurizing byproduct particle is blown afloat again, so as to promote the fully oxidized of desulfurizing byproduct particle.
The agitation grinding unit 200 of the present embodiment includes motor driving shaft 220, blade connecting rod 230, motor 210
With agitation grinding blade 240, agitation grinding blade 240 is provided with described motor 210, specific description is：Drive
Motor 210 is connected by motor driving shaft 220 with blade connecting rod 230, and blade connecting rod 230 is located under motor driving shaft 220
Portion, is provided with agitation grinding blade 240 in the blade connecting rod 230, agitation grinding blade 240 can be with motor driving shaft 220
Center of rotation is rotated, and the provided circumferentially about of the agitation grinding blade 240 has blade to grind circular arc 242；Above-mentioned agitation grinding leaf
Piece 240 is located in grinding oxidation chamber 130, and the blade of agitation grinding blade 240 grinds circular arc 242 and arc ground section 131
It is engaged, grinding motion occurs in driving inferior lobe slice lapping circular arc 242 and the arc ground section 131 of motor 210.
In grinding oxidizing process, the calcium sulfite of particle surface is first anti-with oxygen during the oxidation of desulfurizing byproduct particle
Calcium sulfate should be generated, because calcium sulfate is slightly soluble in the aqueous solution, particle surface is attached to after calcium sulfite oxidation generation calcium sulfate, hindered
Oxygen molecule is stopped to the diffusion mass transfer inside desulfurizing byproduct particle, so as to hinder the abundant of the calcium sulfite inside particle
Oxidation；When desulfurizing byproduct particle moves to arc ground section 131, the inwall and agitation grinding blade of oxidation chamber 130 are ground
There is extrusion and collision in 240 blade grinding circular arc 242, desulfurizing byproduct particle grinds in the inwall of arc ground section 131 with blade
Under extruding, the collision effect of rounding arc 242, the indissoluble thing of desulfurizing byproduct particle surface is ground into removal, that is, will be attached to take off
The calcium sulfate on sulphur byproduct particles surface is removed in the presence of mechanical force grinding so that the calcium sulfite inside particle
Exposed to particle surface, the contact of oxygen molecule and calcium sulfite surface is promoted, so as to accelerate and promote inside particle
The oxidation of calcium sulfite.Desulfurizing byproduct all the time in grinding during, then due to grinding during agitation grinding blade
Gap between 240 and the grinding inwall of oxidation chamber 130 is smaller, and the bubble of oxygen-enriched air is difficult to be ground into stirring in process of lapping
Among gap between mill blade 240 and the grinding inwall of oxidation chamber 130 so that in process of lapping, desulfurizing byproduct particle
It is difficult to be combined generation oxidation reaction with oxygen.Desulfurizing byproduct particle after grinding grinds circular arc in milling gap section 132 and blade
242 are separated, and internal calcium sulfite oxidation is calcium sulfate by oxygen-enriched air, and then desulfurizing byproduct particle moves to arc again
There is regrinding, oxidation during ground section 131.The interval grinding of the proposition of inventor's innovation substantially increases the oxygen of oxidizing process
Change efficiency, that is, will attach to oxide surface calcium sulfate grinding removal after, desulfurizing byproduct particle as early as possible with agitation grinding leaf
Piece 240 is separated, and so as to promote contact of the desulfurizing byproduct particle with oxygen, accelerates oxidation efficiency.
The arc ground section 131 of the present embodiment is equal to arc ground section with the distance of the center of rotation of agitation grinding blade 240
131 with the distance of the center of rotation of agitation grinding blade 240, the center of rotation is the axle center of motor driving shaft 220, and arc grinds
The arc radius for grinding section 131 are identical with the arc radius of blade grinding circular arc 242, and described milling gap section 132 is ground with stirring
The distance of the center of rotation of blade 240 is ground more than arc ground section 131 and the distance of the center of rotation of agitation grinding blade 240.
The cross section that oxidation chamber 130 is ground in this implementation is ellipse, is arc at described oval minor axis vertex
Shape ground section 131, agitation grinding blade 240 and grinding oxidation chamber 130 joint at oval minor axis vertex, blade grinds
There is relative motion in rounding arc 242, and produce extruding force to desulfurizing byproduct particle with arc ground section 131, by desulfurization by-product
Composition granule attrition crushing, blade grinding circular arc 242 leaves and enters milling gap section 132 at the minor axis vertex of ellipse, now
Desulfurizing byproduct particle is separated with blade grinding circular arc 242, and oxidation reaction occurs.
Using a kind of flue gas desulfurization byproduct low-temperature oxidation device of the present embodiment, air blowing oxidation desulfurizing byproduct, to de-
Sulphur accessory substance carries out comprising the following steps that for oxidation modification treatment：
First, water sieve is carried out to desulfurizing byproduct using the round-hole mesh of 100 mesh, and by the Impurity removal of bulky grain, will be de-
Sulfuric acid is added after sulphur accessory substance impurity elimination carries out pickling, and pickle is carried out into vacuum filtration obtains desulfurizing byproduct particle, to desulfurization
Byproduct particles carry out washing 2-4 times, the present embodiment preferably 3 times, and obtain in neutral desulfurizing byproduct solution；It is wherein described
Desulfurizing byproduct to sinter the desulfurizing byproduct of flue gas dry desulfurizing or semi-dry desulphurization in Ore Sintering Process, it is water washed
Water in journey is deionized water.
Secondly, desulfurizing byproduct solution is added into oxidation unit, is carried out to oxygen-enriched air is blown into desulfurizing byproduct solution
Interval grinding is carried out during air blowing oxidation, air blowing oxidation to desulfurizing byproduct particle, and controls desulfurizing byproduct solution
Oxidizing temperature is 90 DEG C；In particular, air blowing oxidation step is as follows：
A, by desulfurizing byproduct solution add oxidation unit among, desulfurizing byproduct sinks down into bottom under gravity
In cone-shaped collection storehouse 120；
Oxygen-enriched air is blown into oxidation unit by B, oxidation air blowing part 110, under the driving of oxygen-enriched air, is deposited on taper
The desulfurizing byproduct particle of collecting bin 120 is moved in the grinding oxidation chamber 130 at the top of oxidation unit, in agitation grinding blade
In the presence of 240 Stirrings, desulfurizing byproduct particle moves to the inner wall edge position of grinding oxidation chamber 130；
C, grinding oxidation chamber 130 inner wall edge interval grinding is carried out to desulfurizing byproduct particle, be intermittently ground to
When desulfurizing byproduct particle moves to arc ground section 131, the inwall and agitation grinding blade 240 of oxidation chamber 130 are ground
There is extrusion and collision in blade grinding circular arc 242, desulfurizing byproduct particle grinds circular arc in the inwall of arc ground section 131 with blade
Under 242 extruding, collision effect, the indissoluble thing of desulfurizing byproduct particle surface is ground into removal, the desulfurizing byproduct after grinding
Particle is separated in milling gap section 132 with blade grinding circular arc 242, and internal calcium sulfite oxidation is sulfuric acid by oxygen-enriched air
, there is regrinding, oxidation when then desulfurizing byproduct particle moves to arc ground section 131 again in calcium.Wherein oxygen-enriched air
Temperature be 150 ± 5 DEG C, 150 ± 5 DEG C of oxidizing gas is that the desulfurizing byproduct solution ground in oxidation chamber 130 is added
Heat, the oxygen volume ratio in oxygen-enriched air is 60%.
The oxygenation efficiency of the desulfurizing byproduct of table 1
| Sample ID | |
| Prior art | 40.20% |
| Embodiment 1 | 78.52% |
During recycling desulfurizing byproduct prepares calcium sulfate crystal whiskers, it is impossible to directly using calcium sulfite
(CaSO3) calcium sulfate crystal whiskers are prepared, therefore treatment is being modified using desulfurizing byproduct, wherein described modification is right
Desulfurizing byproduct is modified oxidation processes so that the calcium sulfite (CaSO in desulfurizing byproduct3) it is converted into calcium sulfate
(CaSO4).As shown in table 1, existing method for oxidation is in oxidation modification desulfurizing byproduct, SO3 2-Oxygenation efficiency be only
40.20%, cause SO3 2-Oxygenation efficiency it is relatively low, and cause the utilization ratio of desulfurizing byproduct poor；And use the present embodiment
Oxidation unit, by carrying out interval grinding during oxidation, removal is ground by the indissoluble thing of desulfurizing byproduct particle surface,
The calcium sulfate that will be attached to desulfurizing byproduct particle surface is removed in the presence of mechanical force grinding so that in particle
The calcium sulfite in portion is exposed to particle surface, the contact of oxygen molecule and calcium sulfite surface is promoted, so as to accelerate and promote
The oxidation of the calcium sulfite inside particle, and substantially increase the oxygenation efficiency of calcium sulfate in desulfurizing byproduct so that SO3 2-'s
Oxygenation efficiency reaches 78.52%.
Using a kind of flue gas desulfurization byproduct low-temperature oxidation device to desulfurizing byproduct air blowing oxidation after, then by desulfurization pair
Reaction mixture is dried and obtains desulfurizing byproduct powder, adds during desulfurizing byproduct powder is mixed into backward mixture with medium crystallization agent
Enter water, and it is 1/8 to control solid-to-liquid ratio；It is 5.0 to add dilute sulfuric acid regulation PH, and stirring makes its fully emulsified prepared slurry；
By in slurry obtained above addition reactor, lower reaction 120min is carried out under 140 ± 5 DEG C of airtight condition,
And obtain product；Mixing speed during hydro-thermal reaction is 15-25r/min, preferably 20r/min.
Product is washed 1-3 times, preferably 2 times, during washing, the water temperature for washing is 90 DEG C, and suction filtration is obtained
To filter cake, obtain cleaning filter cake using absolute ethyl alcohol after filter cake, so as to by fat-soluble Impurity removal；Filter cake is placed in again dry
Dried in dry case, wherein the drying temperature of drying box is 90 DEG C, dries completion and obtains CaSO4Whisker, the whisker for preparing is such as
Shown in Fig. 7.
After being processed desulfurizing byproduct oxidation modification using the present apparatus, the whisker for preparing is as shown in fig. 7, wherein whisker
Diameter is less than 1 μm, and draw ratio reaches 80, and the theoretical strength of the intensity of calcium sulfate crystal whiskers reaches 0.02E-0.05E, shows finish
It is higher, the preparation quality of calcium sulfate crystal whiskers is improve, meet commercial Application requirement, the high added value for realizing desulfurizing byproduct should
With.
Embodiment 2
The substance of the present embodiment is with embodiment 1, difference：Blade is provided with agitation grinding blade 240
Chamfering 241, during oxidation is ground, under the driving of agitation grinding blade 240, desulfurizing byproduct particle moves to arc and grinds
Gap between mill section 131 and blade chamfering 241, in follow-up motion process, desulfurizing byproduct particle continues to move to arc
Between ground section 131 and blade grinding circular arc 242, then desulfurizing byproduct particle carries out mechanical lapping, and blade chamfering 241 promotes
Desulfurizing byproduct particle enters the gap between arc ground section 131 and blade chamfering 241, so as to promoting desulfurizing byproduct
The mechanical lapping of particle.
Embodiment 3
The substance of the present embodiment is with embodiment 1, difference：The bottom of motor driving shaft 220 is provided with driving
Axle top blast stomata 221 (as shown in Figure 3), drive shaft top blast stomata 221 equally can be by oxygen-enriched air during grinding oxidation
Grinding oxidation chamber 130 is blown into, and drive shaft top blast stomata 221 is located at same axis with the geometric center of bottom blowing stomata 111
On, under the collective effect of drive shaft top blast stomata 221 and bottom blowing stomata 111, desulfurizing byproduct particle and liquid are constantly by grinding
The central motion of oxidation chamber 130 is ground to the arc ground section 131 for grinding oxidation chamber 130, promotes desulfurizing byproduct particle
There is mechanical lapping in arc ground section 131, so as to accelerate the oxidation effectiveness of desulfurizing byproduct particle.
It is worth further illustrating, the bottom of blade connecting rod 230 is provided with connecting rod top blast stomata 231, the connection
Downwards, i.e., air-flow from top to bottom enters desulfurizing byproduct solution (as shown in Figure 2) to the blowing direction of bar top blast stomata 231；In addition, leaf
Connecting rod horizontal air hole 232 is provided with the side of piece connecting rod 230, the outgassing direction of the connecting rod horizontal air hole 232 is parallel
In the oxygen-enriched air that horizontal plane, connecting rod horizontal air hole 232 are sprayed into, desulfurizing byproduct particle is not only promoted with oxygen molecule
Mixing, and promote desulfurizing byproduct particle with water movement to the marginal position for grinding oxidation chamber 130, accelerate desulfurization
The grinding of byproduct particles, oxidizing process.
Embodiment 4
As shown in figure 4, the substance of the present embodiment is with embodiment 1, difference is：The present embodiment grinds oxidation chamber
Body 130 is made up of 2 arc ground sections 131 and 2 milling gap sections 132, and wherein milling gap section 132 is rectangle channel-shaped.
Embodiment 5
As shown in figure 5, the substance of the present embodiment is with embodiment 1, difference is：The present embodiment grinds oxidation chamber
Body 130 is made up of 4 arc ground sections 131 and 4 milling gap sections 132, and wherein milling gap section 132 is rectangle channel-shaped, and
Gap section gas hole 133 is provided with milling gap section 132, gap section gas hole 133 blows simultaneously to grinding oxidation chamber 130
Enter oxygen-enriched air, the air blowing flow of the air blowing flow less than bottom blowing stomata 111 of gap section gas hole 133；Prevent desulfurizing byproduct
Particle is long in milling gap 132 residence times of section, so as to promote desulfurization particle to aoxidize and grind.
Embodiment 6
As shown in fig. 6, the substance of the present embodiment is with embodiment 1, difference is：The grinding oxidation of the present embodiment
Heating water bath case 140 is provided with outside cavity 130, the heating water bath case 140 is used to add for grinding oxidation chamber 130 carries out water-bath
Heat.
The utility model is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that can be
Various modifications and variations are carried out in the case of not departing from the scope of the present utility model being defined by the following claims.Detailed retouches
State should be to be considered only as with accompanying drawing it is illustrative and not restrictive, if there is any such modification and modification, then
They are fallen within the range of the utility model described here.Additionally, background technology is intended to illustrate grinding for this technology
It was found that shape and meaning, it is no intended to limit the utility model or the application and application field of the present utility model.
More specifically, although exemplary embodiment of the present utility model has been described herein, the utility model is simultaneously
These embodiments are not limited to, but are repaiied according to the process that detailed description above can be appreciated that including those skilled in the art
Change, omit, any and whole embodiments of (such as between each embodiment) combination, adaptive change and/or replacement.Right
It is required that in restriction can widely be explained according to the language used in claim, and be not limited in foregoing detailed description
In or the example that describes during this application is implemented, these examples are considered as nonexcludability.For example, in the utility model
In, term " preferably " not exclusively, here it means that " preferably, but be not restricted to that ".It is in office where method or
Any step enumerated in process claims can in any order perform and be not limited to the order proposed in claim.
Therefore, scope of the present utility model only should determine by appended claims and its legal equivalents, rather than by giving above
The explanation that goes out and example determine.
Claims (10)
1. a kind of flue gas desulfurization byproduct low-temperature oxidation device, it is characterised in that：Including
Oxidation unit (100), the oxidation unit (100) includes oxidation air blowing part (110) and grinding oxidation chamber (130), its
, positioned at the bottom of grinding oxidation chamber (130), oxidation air blowing part (110) is for grinding oxygen for middle oxidation air blowing part (110)
Change cavity (130) and blast oxygen-enriched air, described grinding oxidation chamber (130) is by arc ground section (131) and milling gap section
(132) constitute；
Agitation grinding unit (200), the agitation grinding unit (200) includes motor (210) and agitation grinding blade
(240) agitation grinding blade (240), is provided with described motor (210), the circumference of the agitation grinding blade (240)
On be provided with blade grind circular arc (242)；
Above-mentioned agitation grinding blade (240) in grinding oxidation chamber (130), and agitation grinding blade (240) blade
Grinding circular arc (242) is engaged with arc ground section (131), in driving inferior lobe slice lapping circular arc (242) of motor (210)
There is grinding motion with arc ground section (131).
2. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 1, it is characterised in that：Described arc
Ground section (131) is equal to arc ground section (131) and agitation grinding blade with the distance of agitation grinding blade (240) center of rotation
(240) arc radius of the distance of center of rotation, and arc ground section (131) grind the arc radius of circular arc (242) with blade
It is identical.
3. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 2, it is characterised in that：Described grinding
Gap section (132) is more than arc ground section (131) and agitation grinding blade with the distance of agitation grinding blade (240) center of rotation
(240) distance of center of rotation.
4. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 3, it is characterised in that：Described grinding
The cross section of oxidation chamber (130) is ellipse, is arc ground section (131) at described oval minor axis vertex.
5. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 4, it is characterised in that：Described oxidation
Unit (100) also includes cone-shaped collection storehouse (120), and the cone-shaped collection storehouse (120) is back taper, described oxidation air blowing part
(110) it is connected with grinding oxidation chamber (130) by cone-shaped collection storehouse (120).
6. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 4, it is characterised in that：Described stirring
Grinding unit (200) also includes motor driving shaft (220) and blade connecting rod (230), and described motor (210) is by electricity
Machine drive shaft (220) is connected with blade connecting rod (230), and agitation grinding blade is provided with the blade connecting rod (230)
(240)。
7. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 6, it is characterised in that：Described motor
The bottom of drive shaft (220) is provided with drive shaft top blast stomata (221).
8. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim any one of 1-7, it is characterised in that：Institute
Blade chamfering (241) is provided with the agitation grinding blade (240) stated.
9. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 8, it is characterised in that：Described oxidation
Ceramic Balls are laid in air blowing part (110).
10. a kind of flue gas desulfurization byproduct low-temperature oxidation device according to claim 9, it is characterised in that：Described grinds
Heating water bath case (140) is provided with outside mill oxidation chamber (130).
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| CN201621288114.1U CN206278930U (en) | 2016-11-29 | 2016-11-29 | A kind of flue gas desulfurization byproduct low-temperature oxidation device |
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| CN201621288114.1U CN206278930U (en) | 2016-11-29 | 2016-11-29 | A kind of flue gas desulfurization byproduct low-temperature oxidation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477617B (en) * | 2016-11-29 | 2019-05-07 | 安徽工业大学 | A kind of flue gas desulfurization byproduct low-temperature oxidation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477617B (en) * | 2016-11-29 | 2019-05-07 | 安徽工业大学 | A kind of flue gas desulfurization byproduct low-temperature oxidation device |
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