CN105540635B - Treatment device for semi-dry desulfurized fly ash - Google Patents
Treatment device for semi-dry desulfurized fly ash Download PDFInfo
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- CN105540635B CN105540635B CN201610076883.3A CN201610076883A CN105540635B CN 105540635 B CN105540635 B CN 105540635B CN 201610076883 A CN201610076883 A CN 201610076883A CN 105540635 B CN105540635 B CN 105540635B
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- adsorption chamber
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- activated coke
- feed bin
- air
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
- C01F11/04—Oxides or hydroxides by thermal decomposition
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a treatment device for semi-dry desulfurized fly ash. The device comprises a heating furnace for heating the semi-dry desulfurized fly ash, wherein an adsorption tower is also arranged above the heating furnace; the structure of the adsorption tower comprises a lower adsorption chamber and an upper adsorption chamber in which active coke can be placed; the upper adsorption chamber is positioned above the lower adsorption chamber, and the lower end of the upper adsorption chamber is communicated with the upper end of the lower adsorption chamber through a conveying pipeline; the smoke generated by heating the semi-dry desulfurized fly ash is cooled by cold wind blown out by an induced draft fan in a gas-in flue and then enters the lower adsorption chamber; the active coke in the lower adsorption chamber performs first adsorption of SO2 in the smoke, and then the smoke enters the upper adsorption chamber through a transition flue; and the active coke in the upper adsorption chamber performs second adsorption of SO2 in the smoke, and then the smoke enters a gas-out flue and is discharged out of a chimney. The treatment device for semi-dry desulfurized fly ash can quickly realize desulfurization treatment on the semi-dry desulfurized fly ash so as to solve the problem of secondary pollution of the semi-dry desulfurized fly ash relatively well.
Description
Technical field
The present invention relates to ironmaking field of environment protection equipment is and in particular to carry out being produced during semi-dry desulphurization to sintering flue gas
Semi-dry desulphurization ash processing meanss.
Background technology
Sintering machine can produce substantial amounts of flue gas in sintering, contains substantial amounts of so in flue gas2, in order to reduce fume treatment
BENTONG is made a return journey except so in flue gas frequently with semi-dry desulphurization technology2, so in flue gas is removed using semi-dry desulphurization technology2Shi Hui
Produce substantial amounts of semi-dry desulphurization ash, the main component of semi-dry desulphurization ash is calcium sulfite and calcium sulfate, calcium sulfite and sulfur
Sour calcium can be to environment, and current semi-dry desulphurization ash is generally processed by the way of landfill, thus can be to ring
Secondary pollution is caused in border.
Content of the invention
The technical problem to be solved is: quickly can carry out desulfurization process to semi-dry desulphurization ash by providing one kind
Semi-dry desulphurization ash processing meanss.
In order to solve the above problems, the technical solution used in the present invention is: the processing meanss of semi-dry desulphurization ash, its feature
It is: include: for the heating furnace that semi-dry desulphurization ash is heated, be additionally provided with adsorption tower above heating furnace, absorption
The structure of tower includes: the lower adsorption chamber of activated coke and upper adsorption chamber can be placed, upper adsorption chamber is located at the top of lower adsorption chamber, and
The lower end of upper adsorption chamber is connected by feeding pipe with the upper end of lower adsorption chamber, is respectively arranged with the side wall of lower adsorption chamber
First air inlet and the first gas outlet, are respectively arranged with the second air inlet and the second gas outlet on the side wall of upper adsorption chamber, and
And be respectively arranged with the first air inlet, the first gas outlet, the second air inlet, the second gas outlet can stop activated coke leak but
Do not stop that flue gas enters ventilative striker plate, the first gas outlet of lower adsorption chamber and the upper adsorption chamber in lower adsorption chamber and upper adsorption chamber
The second air inlet be connected by transition flue duct, the exhanst gas outlet of heating furnace is entered with the first of lower adsorption chamber by inlet air stack
QI KOU is connected, and the second gas outlet of upper adsorption chamber is connected with chimney by flue of giving vent to anger, and also sets above upper adsorption chamber
It is equipped with activated coke feed bin, the upper end of upper adsorption chamber is connected with activated coke feed bin by blowing pipeline, and on blowing pipeline
It is provided with the blowing trapping valve that can intercept flue gas, activated coke feed bin sustainedly and stably can be put to upper adsorption chamber by blowing trapping valve
Material, is provided with the discharging trapping valve that can intercept flue gas in the lower end of lower adsorption chamber, and lower adsorption chamber can be continued by discharging trapping valve
Stably discharging；The bypass air channel being connected with the air outlet of air-introduced machine is additionally provided with inlet air stack, also including can control
Heating furnace, blowing trapping valve, discharging trapping valve, the controller of air-introduced machine, the flue gas that heating stove heat semi-dry desulphurization ash produces
The cold front heavy rain being blown out by air-introduced machine in inlet air stack enters back in lower adsorption chamber to after less than 130 DEG C, in lower adsorption chamber
Activated coke to so in flue gas2Carry out adsorbing for the first time, the flue gas then flowing out from the first gas outlet is entered by transition flue duct
Enter in upper adsorption chamber, the activated coke in upper adsorption chamber is to so in flue gas2Carry out second absorption, then from the second gas outlet
The flue gas flowing out is discharged by chimney after entering flue of giving vent to anger.
Further, the processing meanss of aforesaid semi-dry desulphurization ash, wherein: be additionally provided with controlled on feeding pipe
The conveying trapping valve that device controls, under conveying trapping valve can make activated coke in adsorption chamber enter in lower adsorption chamber and can intercept
Flue gas in adsorption chamber enters adsorption chamber from feeding pipe.
Further, the processing meanss of aforesaid semi-dry desulphurization ash, wherein: blowing trapping valve, discharging trapping valve are
Star-shaped discharge valve.
Further, the processing meanss of aforesaid semi-dry desulphurization ash, wherein: blowing trapping valve, discharging trapping valve, conveying
Trapping valve is star-shaped discharge valve.
Further, the processing meanss of aforesaid semi-dry desulphurization ash, wherein: be arranged side by side in adsorption tower and inhaled under two
Alcove, the top of each lower adsorption chamber is all correspondingly arranged on a upper adsorption chamber, is provided with one altogether between two lower adsorption chambers
Inlet air stack, is provided with a shared flue of giving vent to anger between two upper adsorption chambers.
Further, the processing meanss of aforesaid semi-dry desulphurization ash, wherein: also including can be to the charging of activated coke feed bin
Conveyer belt, is additionally provided with high charge level sensor and low level sensor, high charge level sensor and low material position on activated coke feed bin
Sensor is electrically connected with the controller, and when in activated coke feed bin, material position drops to the low level sensor of triggering, controller can control
Conveying brings the charging of activated coke feed bin, and when in activated coke feed bin, material position rises to triggering high charge level sensor, controller can be controlled
Conveyer belt processed stops feeding to activated coke feed bin.
Further, the processing meanss of aforesaid semi-dry desulphurization ash, wherein: heating furnace is to make temperature be heated to 850
～1050 DEG C of electric furnace.
Further, the processing meanss of aforesaid semi-dry desulphurization ash, wherein: the air inlet in bypass air channel is less than air-out
Mouthful.
Advantages of the present invention is: the processing meanss of semi-dry desulphurization ash of the present invention can be rapidly to semi-dry desulphurization
Ash carries out desulfurization process, thus preferably solving the problems, such as the secondary pollution of semi-dry desulphurization ash.
Brief description
Fig. 1 is the structural representation of the processing meanss of semi-dry desulphurization ash of the present invention.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention is described in further detail.
As shown in figure 1, the processing meanss of semi-dry desulphurization ash, comprising: for heated to semi-dry desulphurization ash 11
Heating furnace 2, in the present embodiment, for temperature can be heated to 850～1050 DEG C of electric furnace, so setting can for heating furnace 2
So that semi-dry desulphurization ash is heated to 850～1050 DEG C, the semi-dry desulphurization ash after heating is made to discharge sulfur dioxide, in heating
The top of stove 2 is additionally provided with adsorption tower 3, and the structure of adsorption tower 3 includes: can place the lower adsorption chamber 32 of activated coke and upper adsorption chamber
34, upper adsorption chamber 34 is located at the top of lower adsorption chamber 32, and the upper end of the lower end of upper adsorption chamber 34 and lower adsorption chamber 32 is passed through
Feeding pipe 36 is connected, and is respectively arranged with the first air inlet 321 and the first gas outlet on the both sides side wall of lower adsorption chamber 32
322, the second air inlet 341 and the second gas outlet 342 are respectively arranged with the both sides side wall of upper adsorption chamber 34, and first
Air inlet 321, the first gas outlet 322, the second air inlet 341, it is respectively arranged with the second gas outlet 342 and can stop active afocal
Let out but do not stop that flue gas enters the ventilative striker plate in lower adsorption chamber 32 and upper adsorption chamber 34, the first gas outlet of lower adsorption chamber 32
322 are connected by transition flue duct 37 with the second air inlet 341 of upper adsorption chamber 34, the exhanst gas outlet 21 of heating furnace 2 pass through into
Gas flue 31 is connected with the first air inlet 321 of lower adsorption chamber 32, and the second gas outlet 342 of upper adsorption chamber 34 is by cigarette of giving vent to anger
Road 33 is connected with chimney 35, in the present embodiment, has been arranged side by side two lower adsorption chambers 32 in adsorption tower, each lower adsorption chamber
32 top is all correspondingly arranged on a upper adsorption chamber 34, is provided with a shared inlet air stack between two lower adsorption chambers 32
31, it is provided with a shared flue 33 of giving vent to anger between two upper adsorption chambers 34；It is additionally provided with work above upper adsorption chamber 34
Property burnt feed bin 38, on each, the upper end of adsorption chamber 34 is connected with activated coke feed bin 38 by blowing pipeline 361 respectively, and
The blowing trapping valve 39 that flue gas can be intercepted is provided with each blowing pipeline 361, activated coke feed bin 38 can pass through blowing trapping
Upper adsorption chamber 34 sustainedly and stably blowing given by valve 39, is provided with, in the lower end of each lower adsorption chamber 32, the discharging that can intercept flue gas
Trapping valve 391, lower adsorption chamber 32 can pass through discharging trapping valve 391 sustainedly and stably discharging；Inlet air stack 31 is additionally provided with
The bypass air channel 61 being connected with the air outlet of air-introduced machine 6, in the present embodiment, the air inlet in bypass air channel 61 is less than air-out
Mouthful, so setting can make the cold wind of air-introduced machine 6 blowout blow out along flow of flue gas, also includes controlling heating furnace 2, blowing trapping
Valve 39, discharging trapping valve 391, the controller 5 of air-introduced machine 6, heating furnace 2 heats the flue gas of semi-dry desulphurization ash 11 generation in air inlet
The cold front heavy rain being blown out by air-introduced machine 6 in flue 31 enters back in lower adsorption chamber 32 to after less than 130 DEG C, in lower adsorption chamber 32
Activated coke to so in flue gas2Carry out adsorbing for the first time, the flue gas then flowing out from the first gas outlet 322 passes through transition flue duct
37 enter in adsorption chamber 34, and the activated coke in upper adsorption chamber 34 is to so in flue gas2Carry out second absorption, then from
The flue gas that two gas outlet 342 is flowed out is discharged by chimney 35 after entering flue 33 of giving vent to anger.
In the present embodiment, the conveying trapping valve 392 that controlled device 5 controls is additionally provided with each feeding pipe 36,
Conveying trapping valve 392 can make the activated coke in adsorption chamber 34 enter in lower adsorption chamber 32 and can intercept in lower adsorption chamber 32
Flue gas enters adsorption chamber 34 from feeding pipe 36.In addition, in the present embodiment, blowing trapping valve 39, conveying trapping valve
392nd, discharging trapping valve 391 is star-shaped discharge valve, and star-shaped discharge valve structure is simple, and trapping performance is good.
In the present embodiment, also include also to set on activated coke feed bin 38 to the conveyer belt 4 of activated coke feed bin 38 charging
It is equipped with high charge level sensor 382 and low level sensor 381, high charge level sensor 382 and low level sensor 381 and controller
5 electrical connections, when in activated coke feed bin 38, material position drops to the low level sensor 381 of triggering, controller 5 can control conveyer belt 4
Feed to activated coke feed bin 38, when in activated coke feed bin 38, material position rises to triggering high charge level sensor 382, controller 5 meeting
Conveyer belt 4 is controlled to stop feeding to activated coke feed bin 38.
The operation principle of the processing meanss of semi-dry desulphurization ash of the present invention is: as shown in figure 1, during work, controller 5
Blowing trapping valve 39, conveying trapping valve 392, discharging trapping valve 391 can be made simultaneously to open operation, make the work in activated coke feed bin 38
Property Jiao can sequentially enter in adsorption chamber 34 and lower adsorption chamber 32, is then discharged by lower adsorption chamber 32；Semidry method is taken off by heating furnace 2
After sulfur ash 11 is heated to 850～1050 DEG C and is incubated a period of time, semi-dry desulphurization ash 11 can be changed into Calx, and heating furnace 2
The cold front heavy rain that can be blown out by air-introduced machine 6 in inlet air stack 31 of flue gas that heating semi-dry desulphurization ash 11 produces to 130 DEG C with
Enter back in lower adsorption chamber 32 after lower, the activated coke in lower adsorption chamber 32 is to so in flue gas2Carry out adsorbing, then for the first time
Flue gas through lower adsorption chamber 32 enters in upper adsorption chamber 34 by transition flue duct 37, and the activated coke in upper adsorption chamber 34 is to cigarette
So in gas2Carry out second absorption, the flue gas then passing through adsorption chamber 34 enters to give vent to anger and arranged by chimney 35 after flue 33
Go out.Additionally, in real work, so can be adsorbed with by discharge in lower adsorption chamber 322Activated coke isolation air heating, thus
So that activated coke is parsed and discharge so2, so that activated coke parsing discharges2Can be used for producing concentrated sulphuric acid, and parse and discharge so2
Activated coke can also put into again in adsorption tower 3 in order to adsorb so2.
The invention has the benefit that the processing meanss of described semi-dry desulphurization ash are due to employing heating furnace, so
Substantial amounts of semi-dry desulphurization ash can disposably be processed, and effectively desulfurization process can be carried out to semi-dry desulphurization ash, and half-dried
Method Desulphurization can be changed into Calx after discharging sulfur dioxide, thus the secondary pollution preferably solving semi-dry desulphurization ash is asked
Topic.
Claims (10)
1. semi-dry desulphurization ash processing meanss it is characterised in that: include: for the heating that semi-dry desulphurization ash is heated
Stove, is additionally provided with adsorption tower above heating furnace, and the structure of adsorption tower includes: can place the lower adsorption chamber of activated coke and upper suction
Alcove, upper adsorption chamber is located at the top of lower adsorption chamber, and conveying pipeline is passed through in the upper end of the lower end of upper adsorption chamber and lower adsorption chamber
Road is connected, and is respectively arranged with the first air inlet and the first gas outlet on the side wall of lower adsorption chamber, in the side wall of upper adsorption chamber
On be respectively arranged with the second air inlet and the second gas outlet, and the first air inlet, the first gas outlet, the second air inlet,
It is respectively arranged with two gas outlets and can stop that activated coke leaks but it is saturating in lower adsorption chamber and upper adsorption chamber not stop that flue gas enters
Gas striker plate, the first gas outlet of lower adsorption chamber is connected by transition flue duct with the second air inlet of upper adsorption chamber, heating furnace
Exhanst gas outlet be connected with the first air inlet of lower adsorption chamber by inlet air stack, the second gas outlet of upper adsorption chamber is passed through
Gas flue is connected with chimney, is additionally provided with activated coke feed bin above upper adsorption chamber, and blowing is passed through in the upper end of upper adsorption chamber
Pipeline is connected with activated coke feed bin, and is provided with the blowing trapping valve that can intercept flue gas, activated coke material on blowing pipeline
Upper adsorption chamber sustainedly and stably blowing can be given by blowing trapping valve in storehouse, be provided with the lower end of lower adsorption chamber and can intercept flue gas
Discharging trapping valve, lower adsorption chamber can pass through discharging trapping valve sustainedly and stably discharging；Inlet air stack is additionally provided with and air inducing
The bypass air channel that the air outlet of machine is connected, also includes controlling heating furnace, blowing trapping valve, discharging trapping valve, air-introduced machine
Controller, the cold front heavy rain that the flue gas that heating stove heat semi-dry desulphurization ash produces is blown out by air-introduced machine in inlet air stack is extremely
Enter back into after less than 130 DEG C in lower adsorption chamber, the activated coke in lower adsorption chamber is to so in flue gas2Carry out adsorbing for the first time,
Then the flue gas flowing out from the first gas outlet is entered into by transition flue duct upper adsorption chamber, and the activated coke in upper adsorption chamber is to cigarette
So in gas2Carry out second absorption, then enter to give vent to anger after flue by chimney from the flue gas that the second gas outlet is flowed out and discharge.
2. semi-dry desulphurization ash according to claim 1 processing meanss it is characterised in that: also set up on feeding pipe
Have the conveying trapping valve being controlled by the controller, conveying trapping valve activated coke in adsorption chamber can be made to enter in lower adsorption chamber and
The flue gas that can intercept in lower adsorption chamber enters adsorption chamber from feeding pipe.
3. semi-dry desulphurization ash according to claim 1 processing meanss it is characterised in that: blowing trapping valve, discharging every
Air valve is star-shaped discharge valve.
4. semi-dry desulphurization ash according to claim 2 processing meanss it is characterised in that: blowing trapping valve, discharging every
Air valve, conveying trapping valve are star-shaped discharge valve.
5. the semi-dry desulphurization ash according to claim 1 or 2 or 3 or 4 processing meanss it is characterised in that: in adsorption tower
Two lower adsorption chambers have been arranged side by side it, the top of each lower adsorption chamber is all correspondingly arranged on a upper adsorption chamber, adsorbs under two
It is provided with a shared inlet air stack between room, between two upper adsorption chambers, be provided with a shared flue of giving vent to anger.
6. the semi-dry desulphurization ash according to claim 1 or 2 or 3 or 4 processing meanss it is characterised in that: also include energy
To the conveyer belt of activated coke feed bin charging, high charge level sensor and low level sensor are additionally provided with activated coke feed bin, high
Level sensor and low level sensor are electrically connected with the controller, when in activated coke feed bin, material position drops to triggering low material position sensing
During device, controller can control conveying to bring the charging of activated coke feed bin, when in activated coke feed bin, material position rises to triggering high charge level biography
During sensor, controller can control conveyer belt to stop feeding to activated coke feed bin.
7. semi-dry desulphurization ash according to claim 5 processing meanss it is characterised in that: also including can be to activated coke material
The conveyer belt of storehouse charging, is additionally provided with high charge level sensor and low level sensor, high charge level sensor on activated coke feed bin
It is electrically connected with the controller with low level sensor, when material position drops to the low level sensor of triggering in activated coke feed bin, control
Device can control conveying to bring the charging of activated coke feed bin, when in activated coke feed bin, material position rises to triggering high charge level sensor, control
Device processed can control conveyer belt to stop feeding to activated coke feed bin.
8. the semi-dry desulphurization ash according to claim 1 or 2 or 3 or 4 processing meanss it is characterised in that: heating furnace is
The electric furnace that temperature is heated to 850～1050 DEG C can be made.
9. semi-dry desulphurization ash according to claim 7 processing meanss it is characterised in that: heating furnace be temperature can be made to add
The electric furnace of heat to 850～1050 DEG C.
10. the semi-dry desulphurization ash according to claim 1 or 2 or 3 or 4 processing meanss it is characterised in that: bypass air channel
Air inlet be less than air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610076883.3A CN105540635B (en) | 2016-02-04 | 2016-02-04 | Treatment device for semi-dry desulfurized fly ash |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610076883.3A CN105540635B (en) | 2016-02-04 | 2016-02-04 | Treatment device for semi-dry desulfurized fly ash |
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| CN105540635A CN105540635A (en) | 2016-05-04 |
| CN105540635B true CN105540635B (en) | 2017-01-25 |
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| CN109082709B (en) * | 2018-08-31 | 2020-08-28 | 安徽工业大学 | Method for synthesizing calcium sulfate whiskers by using sintered flue gas desulfurization ash through one-step method |
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| DE2749399C2 (en) * | 1977-11-04 | 1981-10-15 | Deutsche Babcock Ag, 4200 Oberhausen | Device for the thermal regeneration of loaded adsorbents |
| CN201168537Y (en) * | 2008-02-22 | 2008-12-24 | 张开元 | Active coke air purifying apparatus |
| CN101785969B (en) * | 2010-03-03 | 2012-06-27 | 王向明 | Method of flue gas purification and system thereof |
| CN103446830B (en) * | 2013-07-02 | 2015-07-01 | 香港诺曼泰壹环保科技有限公司 | Flue gas purifying system |
| CN105148681B (en) * | 2015-09-29 | 2017-09-22 | 北京首钢国际工程技术有限公司 | A kind of agglomerates of sintered pellets flue gas absorption and blanking device |
| CN205472709U (en) * | 2016-02-04 | 2016-08-17 | 江苏永钢集团有限公司 | Processing apparatus of semidry method desulfurization ash |
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Effective date of registration: 20190712 Address after: 215600 Yong village, Nanfeng Town, Zhangjiagang, Jiangsu Patentee after: Lian Feng Steel (Zhangjiagang) Co., Ltd. Address before: Nanfeng town Zhangjiagang city Suzhou city Jiangsu province 215628 wing Jiangsu Yonggang Group Co Ltd Patentee before: Jiangsu Yonggang Group Co., Ltd. |
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