CN206500102U - A kind of quicklime slaking equipment for coke oven flue desulfurization - Google Patents
A kind of quicklime slaking equipment for coke oven flue desulfurization Download PDFInfo
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- CN206500102U CN206500102U CN201720085745.1U CN201720085745U CN206500102U CN 206500102 U CN206500102 U CN 206500102U CN 201720085745 U CN201720085745 U CN 201720085745U CN 206500102 U CN206500102 U CN 206500102U
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Abstract
A kind of quicklime slaking equipment for coke oven flue desulfurization, including digestion tank body, motor, agitating shaft, blade, temperature control equipment, dividing plate, several dividing plates are set to be separated into several regions by tank inner chamber is digested in digestion tank body, agitating shaft is designed with each region separated, two groups of blades are installed on each agitating shaft, the incline direction of two groups of blades is opposite, diameter/propeller pitch angle of one of which blade in two groups of blades is bigger than diameter/propeller pitch angle of another group of blade, and temperature control equipment is additionally provided with digester body.The utility model can control the temperature change of liquid in tank body, improve quicklime slaking rate.Increase flow path of the lime slurry in tank body, contribute to the progress of digestion reaction, enhancing solid-liquid mixing.Guiding fluid flows according to required path, reduces bottom settlings, and strengthens stirring capacity, refines solid particle size, promotes digestion reaction.Line clogging is reduced, sulfur removal technology effect is improved.
Description
Technical field
The utility model is related to the liquid of matching somebody with somebody of flue gases of cock oven rotary-atomizing desulfurization, more particularly to a kind of for flue gases of cock oven
The quicklime slaking equipment of desulfurization.
Background technology
Metallurgical class or chemical industry class factory using fossil fuel as the energy, it will usually release largely containing flying dust and
SO2Deng the stack gases of noxious acidic gaseous.In order to remove the atmosphere pollution SO in flue gas2Component, the desulfurization of current main flow
Method mainly has three kinds：Wet desulphurization, semi-dry desulphurization and dry desulfurization.Wherein semi-dry desulphurization is due in energy consumption, taking up an area
It is more dominant than wet method in terms of area and product processing, and the desulfurization performance of centering low-temperature flue gas is more superior than dry desulfurization, increasingly
It is valued by people.
The flue gases of cock oven temperature of coking industry is general between 180 DEG C~250 DEG C, belongs to middle low-temperature flue gas；SO2Content
Generally 60~150mg/Nm3, for the higher enterprise of organic sulfur content in feed coal, the SO in its coke oven flue waste gas2Contain
Amount is up to 350mg/Nm3, belong to low-sulfur stack gases.As can be seen here, semi-dry desulfurizing process can be used for flue gases of cock oven
In desulfurization project.At present, the SO of domestic existing coke oven discharge2Concentration can not meet national newest appearance mostly《Coking chemistry
Emission of industrial pollutants standard》.And it is new《Standard》From 1 day January in 2015, to SO2Concentration of emission require it is higher.In order to true
Guarantor reaches national emission request, using desulfuration efficiency in semi-dry desulfurizing process up to more than 95% rotary-atomizing sulfur removal technology
It is more appropriate.
In 80~nineties of 20th century, China has built the desulfurizer of a collection of rotary spraying and drying method.However, by
Immature in sulfur removal technology at that time, desulfurization Deethanizer design is unreasonable, improper with feed liquid method with liquid, thus technique desulfuration efficiency not
Height, container and pipeline are easily blocked, stabilization of equipment performance is poor.So as in rotary-atomizing flue gas desulfurization technique at home environment protection desulphurization industry
Form the understanding of " technique is immature, operation is unreliable, desulfurization degree is not high ".Problems above is main by material slurry or thing
Feed powder end causes.For using rotary spraying and drying technique of the quick lime as raw material, the control of digestion reaction condition is improper
It is the root place of above mentioned problem.Traditional desulfurization is not strong with lime slaking equipment stirring capacity, and lime slurry flowing is insufficient；Disappear
Change reaction temperature control to adjust only by the proportioning of raw material and process water, it is impossible to reach accurate control.It is raw due to above reason
Lime raw material digestion reaction rate is not high, and the suspension solid particle size of generation is big, lump many, and then whole sulfur removal technology is produced weighed
Big harmful effect.
CN201120458654.0 discloses a kind of sintering flue gas desulfurization digester, is equally used for rotating spraying semidry method and takes off
Sulphur, in order to solve the problem of quick lime solution speed is slow to be difficult discharge with sandstone that is being deposited on bottom, adds discharging area slurries
Mixing arm quantity, and change tank bottom angle.However, the discharge zone tank body of this equipment does not have easily by discharging opening " short circuit "
Transformation restriction is carried out to blade, and without temperature control equipment, and unresolved quicklime slaking reacts insufficient, suspension solid
The problem of big grade of particle produces great harmful effect to sulfur removal technology.
Utility model content
The utility model provide a kind of quicklime slaking equipment for coke oven flue desulfurization, main purpose be in order to
Raw material digestion reaction rate is improved, lime slurry solid particle is refined, caking phenomenon is reduced and produces.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of quicklime slaking equipment for coke oven flue desulfurization, including digestion tank body, motor, agitating shaft, blade,
Temperature control equipment, dividing plate, several dividing plates are provided with digestion tank body digestion tank inner chamber are separated into several regions,
One end of dividing plate is fixedly connected with digestion tank body, leaves gap between the other end and digestion tank body, two adjacent dividing plates interlock
Set；Agitating shaft is both provided with the region that each is separated, two groups of blades, two groups are installed on each agitating shaft
The incline direction of blade is on the contrary, the diameter of the one of which blade in two groups of blades is bigger than the diameter of another group of blade, or two
The propeller pitch angle of one of which blade in group blade is bigger than the propeller pitch angle of another group of blade, and agitating shaft is external with being arranged at digester
The motor drive connection in portion, temperature control equipment is additionally provided with digester body.
The temperature control equipment is heat exchange pipeline.
The quantity of the dividing plate is even number, and digestion tank inner chamber is divided into odd number region.
The quantity of the dividing plate is odd number, and digestion tank inner chamber is divided into even number region.
Compared with prior art, the beneficial effects of the utility model are：
1) by setting temperature control equipment, the temperature change of liquid in tank body can be accurately controlled, digestion reaction is existed
Carried out in optimum condition, improve quicklime slaking rate.
2) by setting dividing plate, by increasing capacitance it is possible to increase flow path of the lime slurry in tank body, entering for digestion reaction is contributed to
OK, and enhance solid-liquid mixing.
3) there is the blade of different active forces by setting to fluid, fluid can be guided to be flowed according to required path, subtracted
Few bottom settlings, and strengthen solid particle size in the stirring capacity of agitating device, refinement lime suspension, there is promotion to digestion reaction
Effect.
4) the lime suspension produced using this digestion facility can reduce the blocking to pipeline, improve sulfur removal technology effect
Really.
Brief description of the drawings
Fig. 1 is that a kind of structural representation of quicklime slaking equipment for coke oven flue desulfurization of the utility model is (real
Apply example 1).
Fig. 2 is that a kind of structural representation of quicklime slaking equipment for coke oven flue desulfurization of the utility model is (real
Apply example 2).
In figure：Blade that 1- charging apertures, 2- motors, 3- agitating shafts, 4- are relatively large in diameter, the less blade of 5- diameters, 6- every
The larger blade of plate, 7- propeller pitch angles, the less blade of 8- propeller pitch angles, 9- discharge opening pipelines, 10- heat exchange pipelines, 11- discharging openings,
121- first areas, 122- second areas, the regions of 123- the 3rd, the regions of 124- the 4th, 13- digestion tank bodies.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
A kind of quicklime slaking equipment for coke oven flue desulfurization, including digestion tank body 13, motor 2, agitating shaft 3,
Blade, temperature control equipment, dividing plate 6, several dividing plates 6 are provided with digestion tank body 13 and are separated into digestion tank body 13 inner chamber
Several regions, one end of dividing plate 6 is fixedly connected with digestion tank body 13, and gap, phase are left between the other end and digestion tank body 13
Two adjacent dividing plates 6 are staggered；Agitating shaft 3 is both provided with the region that each is separated, on each agitating shaft 3
Two groups of blades are installed, the incline direction of two groups of blades is on the contrary, the diameter of the one of which blade in two groups of blades is than another group
The diameter of blade is big, or the propeller pitch angle of the one of which blade in two groups of blades is bigger than the propeller pitch angle of another group of blade, stirring
Axle 3 is connected with the motor 2 being arranged at outside digestion tank body 13, and temperature control equipment is additionally provided with digestion tank body 13.
The one end for digesting tank body 13 is provided with charging aperture 1, for adding process water and/or quick lime raw material.Dividing plate 6 and tank body it
Between have a fixed gap, enable a fluid between each region flow.It is designed with each region separated by dividing plate 6 by motor
2nd, the agitating device that agitating shaft 3 and blade are constituted.Agitating device is driven the blade on agitating shaft 3 to rotate by motor 2, so as to reach
Agitating function.
Each agitating shaft 3 is provided with two groups of blades.This two groups of blades are different to the action direction of fluid.Two groups of blades can be with
To the active force of fluid respectively upwardly and downwardly, can also be respectively towards left and towards right or other countercurrent directions.So
Setting be in order to which fluid can be circulated between two impellers so that raw material can by repeatedly stir, grind,
Reduce the solid particle size of suspension.In the case that above-mentioned countercurrent direction is different, dividing plate, agitating device and the temperature control of digestion facility
The position of device processed changes therewith.
Two groups of blades on same agitating device, it is desirable to have one group of blade is larger to the active force of fluid, so that
Whole agitating device is a fixed direction to the total force of fluid.To realize this function, the diameter of two groups of blades is not
Same or propeller pitch angle is different.Total force direction points to dividing plate 6 and the direction in tank body gap, so as to increase fluid in digestion tank body
The distance flowed in 13, promotes solid mixing to be carried out with digestion reaction.
There are one or more sets temperature control equipments, concrete condition is determined by production technology in digestion facility.But, it is necessary to
It can be liquid heating in tank body to have a set of temperature control equipment, so as to heat process water to given process temperature.Due to
During digestion reaction, amount of heat can be produced, reaction temperature may be made out of control, so it is pot liquid refrigeration to be preferably formed with
Heat-exchanger rig.
The temperature control equipment is heat exchange pipeline 10.The heat exchange pipeline 10 of hot water is passed through to heat for pot liquid；It is passed through
The heat exchange pipeline 10 of cold water cools for pot liquid.
The quantity of the dividing plate 6 is even number, and digestion tank inner chamber is divided into odd number region.
The quantity of the dividing plate 6 is odd number, and digestion tank inner chamber is divided into even number region.
A kind of quicklime slaking equipment for coke oven flue desulfurization matches somebody with somebody liquid and feed liquid method, and specific method is as follows：
Temperature control equipment passes first into heating agent, heating process water to design temperature；Quick lime raw material passes through charging afterwards
Mouthful 1 enters the first area 121 of digestion tank body 13, due to two groups of blades on same agitating shaft 3 incline direction on the contrary,
In the rotary course of agitating shaft 3, fluid is circulated between the impeller of two groups of blades, makes fluid driven quick lime raw material
Stirred, ground repeatedly, in the presence of mixing plant and temperature control equipment, occur digestion reaction, and produce lime slurry；
Again because the diameter of the one of which blade in two groups of blades is bigger than the diameter of another group of blade, or in two groups of blades wherein
The propeller pitch angle of one group of blade is bigger than the propeller pitch angle of another group of blade, so make the whole agitating shaft 3 be to total active force of fluid
One fixed direction, total action direction power points to dividing plate 6 and the direction in digestion tank body 13 gap, makes quick lime slurries overall
On there is a unified gap for flowing through dividing plate 6 and digestion tank body 13 to be flowed to next region, by multiple regions
Mix, so as to promote solid mixing and the progress of digestion reaction；
The heat exchange pipeline 10 of temperature control equipment is used for that the liquid in digestion tank body 13 is heated or cooled, and makes digestion
Reaction is maintained in certain temperature range.
Embodiment 1：
As shown in figure 1, the quantity of dividing plate 6 is that 2 (even numbers) are individual, digestion tank body 13 inner chamber is divided into 3 (odd number) individual regions.
Two adjacent dividing plates are staggered about 6, one end of digestion tank body 13 are provided with charging aperture 1, discharging opening is arranged on digestion
The bottom of tank discharge end.
A certain amount of process water is injected in digestion tank body 13 first, and is added by the process water of 10 pairs of injections of heat exchange pipeline
Heat arrives certain temperature.Quick lime raw material is delivered from charging aperture 1 afterwards.Digestion reaction takes place with water in quick lime in tank.
Under the drive of motor 2, agitating shaft 3 rotates at a high speed, drives the blade agitation lime slurry on agitating shaft 3, makes life
Lime raw material and water reaction are more uniform.In first area 121, agitating shaft 3 is rotate counterclockwise, being relatively large in diameter in top
Blade 4 to the active force of fluid downwards, the less blade 5 of diameter being below to the active force of fluid upwards, two leaves
The fluid in region can be produced and circulated between piece, and raw material is sufficiently agitated, levigate.But it is due to the diameter of blade 4 than blade 5
Greatly, so two groups of blades are downward to the overall function effect of fluid.Fluid is flowed to behind jar bottom, from dividing plate 6 and digester
Space between body 13 is flowed in second area 122.The rotation direction of agitating device is clockwise, bottom in second area 122
The blade 4 being relatively large in diameter is upward to the action direction of fluid, and the less blade 5 of upper diameter is downward to the action direction of fluid,
But be due to blade 4 diameter it is bigger, fluid is finally flowed up, and from dividing plate 6 and digestion tank body 13 between space flow into
3rd region 123.Agitating device rotate counterclockwise in 3rd region 123, the larger blade 7 of propeller pitch angle to the active force of fluid to
Under, to the active force of fluid upwards, but the propeller pitch angle of blade 7 is larger for the less blade 8 of propeller pitch angle, to the active force of fluid more
Greatly, so the agitating device active force total to fluid is downward.Digestion reaction finishes rear lime slurry and flowed out from pipeline 9.
The temperature in digester is regulated and controled during digestion reaction as the heat exchange pipeline 10 of temperature control equipment.Figure
Heat exchange pipeline 10 all the way are illustrate only in 1, the road heat exchange pipeline 10 is heating pipeline.If it is necessary, can be again plus cold all the way
But pipeline is used, for preventing tank interior reaction temperature too high.
Embodiment 2：
See Fig. 2, the quantity of dividing plate is 3 (odd number), and digestion tank body 13 inner chamber is divided into 4 (even number) regions.
Two adjacent dividing plates are staggered about 6, and the discharging opening 11 of digestion tank body is arranged on the top of digester discharge end.
Compared with Example 1, the dividing plate 6 of embodiment more than 2, adds a region --- the 4th region 124.4th
Agitating device in region 124 to turn clockwise, the less blade 8 of propeller pitch angle to the active force of fluid down, propeller pitch angle compared with
Big blade 7 to the active force of fluid upward.But due to the propeller pitch angle of blade 7 is larger, the total flow tendency of fluid is upward, from
Discharging opening 11 is flowed in 4th region 124, is finally flowed out from discharge opening pipeline 9.
Claims (4)
1. a kind of quicklime slaking equipment for coke oven flue desulfurization, it is characterised in that including digestion tank body, motor, stir
Axle, blade, temperature control equipment, dividing plate are mixed, be provided with several dividing plates in digestion tank body is separated into tank inner chamber is digested
Several regions, one end of dividing plate is fixedly connected with digestion tank body, and gap, adjacent two are left between the other end and digestion tank body
Individual dividing plate is staggered；Agitating shaft is both provided with the region that each is separated, two are provided with each agitating shaft
Group blade, the incline directions of two groups of blades are on the contrary, the diameter of one of which blade in two groups of blades is more straight than another group of blade
Footpath is big, or the propeller pitch angle of the one of which blade in two groups of blades is bigger than the propeller pitch angle of another group of blade, and agitating shaft is with setting
Motor drive connection outside digester body, temperature control equipment is additionally provided with digester body.
2. a kind of quicklime slaking equipment for coke oven flue desulfurization according to claim 1, it is characterised in that institute
Temperature control equipment is stated for heat exchange pipeline.
3. a kind of quicklime slaking equipment for coke oven flue desulfurization according to claim 1, it is characterised in that institute
The quantity for stating dividing plate is even number, and digestion tank inner chamber is divided into odd number region.
4. a kind of quicklime slaking equipment for coke oven flue desulfurization according to claim 1, it is characterised in that institute
The quantity for stating dividing plate is odd number, and digestion tank inner chamber is divided into even number region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720085745.1U CN206500102U (en) | 2017-01-23 | 2017-01-23 | A kind of quicklime slaking equipment for coke oven flue desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720085745.1U CN206500102U (en) | 2017-01-23 | 2017-01-23 | A kind of quicklime slaking equipment for coke oven flue desulfurization |
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| CN206500102U true CN206500102U (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720085745.1U Active CN206500102U (en) | 2017-01-23 | 2017-01-23 | A kind of quicklime slaking equipment for coke oven flue desulfurization |
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| CN (1) | CN206500102U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582422A (en) * | 2017-01-23 | 2017-04-26 | 中冶焦耐(大连)工程技术有限公司 | Quicklime slaking apparatus and method used for coke oven flue gas desulphurization |
| CN109621768A (en) * | 2019-01-21 | 2019-04-16 | 中南大学 | A kind of impregnating agent blending tank and its agitating device |
| CN113332884A (en) * | 2021-06-04 | 2021-09-03 | 王浩杰 | Pharmacy reagent blending machine that mixing effect is good |
-
2017
- 2017-01-23 CN CN201720085745.1U patent/CN206500102U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582422A (en) * | 2017-01-23 | 2017-04-26 | 中冶焦耐(大连)工程技术有限公司 | Quicklime slaking apparatus and method used for coke oven flue gas desulphurization |
| CN106582422B (en) * | 2017-01-23 | 2023-06-20 | 中冶焦耐(大连)工程技术有限公司 | Quicklime digestion equipment and method for desulfurization of coke oven flue gas |
| CN109621768A (en) * | 2019-01-21 | 2019-04-16 | 中南大学 | A kind of impregnating agent blending tank and its agitating device |
| CN109621768B (en) * | 2019-01-21 | 2024-04-09 | 中南大学 | Impregnant mixing tank and stirring device thereof |
| CN113332884A (en) * | 2021-06-04 | 2021-09-03 | 王浩杰 | Pharmacy reagent blending machine that mixing effect is good |
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