CN103752153B - Refining Equipmeut for Desulfuration in Gas - Google Patents
Refining Equipmeut for Desulfuration in Gas Download PDFInfo
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- CN103752153B CN103752153B CN201410031127.XA CN201410031127A CN103752153B CN 103752153 B CN103752153 B CN 103752153B CN 201410031127 A CN201410031127 A CN 201410031127A CN 103752153 B CN103752153 B CN 103752153B
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- slaked lime
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- lime powder
- desulfuration
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Abstract
A kind of Refining Equipmeut for Desulfuration in Gas, comprise the cabin body being communicated with boiler smoke pipeline right-hand member, described cabin body right-hand member is provided with purifying smoke outlet, intracoelomic cavity left part upper end, described cabin is provided with multiple doctor solution atomized water spraying devices, described doctor solution atomized water spraying device is connected with the atomized liquid reserving chamber that doctor solution is housed, intracoelomic cavity right part upper end, described cabin is provided with multiple slaked lime powder spraying devices, described slaked lime powder spraying device is connected with the slaked lime powder reserving chamber that slaked lime powder is housed, and body lower end, described cabin connects ash bucket. The present invention is simple in structure, floor space is little, investment and operating cost low, its final solid product be easy to process.
Description
Technical field
The present invention relates to a kind of flue gas purifying equipment, refer to especially a kind of Refining Equipmeut for Desulfuration in Gas.
Background technology
Air pollution problems inherent increases the weight of day by day in recent years, and China, as a developing power, will face the severe situation that air pollution constantly increases the weight of in significant period of time from now on. Along with the continuous increase of energy demand, the pollution problem that fume emission causes becomes increasingly conspicuous, air environmental pollution control problem, constantly causes that the whole world extensively pays much attention to, and developing flue gas purifying equipment and technology efficient, energy-conservation, high performance-price ratio is from basic solution environmental issue.
Under this background, flue gas desulfurization technique is subject to extensive concern, large-scale flue gas wet method, semidry method, dry desulfurization device are developed rapidly in China's every profession and trade stove, but existing these flue gas desulfur devices exist, and floor space is large, investment and operating cost high, bring certain difficulty to large scale application.
Summary of the invention
The object of the present invention is to provide a kind of Refining Equipmeut for Desulfuration in Gas, it is simple in structure, floor space is little, investment and operating cost low, the final solid product producing be easy to process, be suitable for large scale application.
To achieve these goals, the invention provides a kind of Refining Equipmeut for Desulfuration in Gas, comprising the cabin body being communicated with boiler smoke pipeline right-hand member, described cabin body right-hand member is provided with purifying smoke outlet, intracoelomic cavity left part upper end, described cabin is provided with multiple doctor solution atomized water spraying devices, described doctor solution atomized water spraying device is connected with the atomized liquid reserving chamber that doctor solution is housed, intracoelomic cavity right part upper end, described cabin is provided with multiple slaked lime powder spraying devices, described slaked lime powder spraying device is connected with the slaked lime powder reserving chamber that slaked lime powder is housed, body lower end, described cabin connects ash bucket.
Also comprise gas tank, described gas tank is connected with tracheae, and the top of doctor solution atomized water spraying device one side is stretched in described tracheae upper end.
Described ash bucket lower end connects circulating ash and returns to storehouse pump.
Intracoelomic cavity upper end, described cabin is positioned at doctor solution atomized water spraying device left and is provided with parabola air ducting, described parabola air ducting comprises that one end is fixed on two side plates of intracoelomic cavity upper end, cabin, two side plate other ends are to downward-extension and be positioned at doctor solution atomized water spraying device below, between two side plates, be interval with from left to right multiple parabola shaped leaf wings that are, the end that suspends of described leaf wing, towards lower right, forms air-guiding hole between adjacent leaf wing.
The position of described cabin intracoelomic cavity between doctor solution atomized water spraying device and slaked lime powder spraying device is provided with at least one dividing plate, upper end or the lower end of cabin body is fixed in one end of described dividing plate, between its other end and cabin body, form through hole, adjacent separator goes to upper and lower the staggered cabin intracoelomic cavity that is fixed on.
The end that suspends of described dividing plate is provided with is convenient to the radian edge that smoke gas flow is crossed.
Described doctor solution atomized water spraying device comprises the first body being communicated with atomized liquid reserving chamber, on described the first body, be provided with two and be the atomizing water nozzle distributing up and down, described atomized liquid reserving chamber is arranged at above the body of cabin and is positioned at directly over doctor solution atomized water spraying device, and described atomized liquid reserving chamber lower end is communicated with described the first body.
Described slaked lime powder spraying device comprises the second body being communicated with slaked lime powder reserving chamber, and described the second body is provided with fluid bed.
Described slaked lime powder reserving chamber is arranged at above the body of cabin and is positioned at directly over slaked lime powder spraying device, and described slaked lime powder reserving chamber lower end is communicated with described the second body.
Described ash bucket is back taper bucket.
Adopt after such scheme, Refining Equipmeut for Desulfuration in Gas of the present invention is by arranging doctor solution atomized water spraying device at cabin intracoelomic cavity near the upper end, position of boiler smoke pipeline, sprays the SO in flue gas after making flue gas enter cabin body through doctor solution atomized water2With H2O reaction generates H2SO3, and the temperature of reaction product is reduced to enter in slaked lime powder spraying device region and reaches and slaked lime powder optimal reaction temperature, reach the new surface that best gas-solid turbulent mixture also constantly exposes unreacted calcium hydroxide, make desulfurizing agent there is the very long time of staying by the repeatedly circulation of solid material simultaneously, thereby utilization rate and the desulfuration efficiency of calcium hydroxide depickling are greatly improved, and the hydrogen chloride pollutant in flue gas reacts and is removed with calcium hydroxide, compared with other flue gas desulfurization, it is simple in structure, floor space is little, cost is low, reliable, the final solid product producing is easy to process.
Further beneficial effect of the present invention is: by gas tank is set, gas tank is connected with tracheae, make tracheae upper end stretch to the top of doctor solution atomized water spraying device one side, design can upwards blow into into separation of flow liquid atomized water spraying device and slaked lime powder spraying device region and carries out flue gas desulfurization processing carrying less dust granules in flue gas like this.
Further beneficial effect of the present invention is: return to storehouse pump by connect circulating ash in ash bucket lower end, the slaked lime powder that makes to be deposited in the dust in ash bucket can circular response.
Further beneficial effect of the present invention is: by be positioned at doctor solution atomized water spraying device left in intracoelomic cavity upper end, cabin, parabola air ducting is set, make flue gas enter parabola air ducting through boiler smoke pipeline, under the parabola shaped leaf wing effect of parabola air ducting, air velocity declines, and guide flue gas to produce downwards and two strands of air-flows upwards, the air-flow that flows downward drives larger dust granules in lower flue gas to move down, because downward air-flow rushes at accumulating at lower part ash bucket, and speed reduces completely under ash bucket resistance, make larger dust granules in flue gas that downward flue gas drives fall into ash bucket, reach the object that larger dust granules falls in dirt.
Further beneficial effect of the present invention is: by establishing at least one dividing plate at cabin intracoelomic cavity between doctor solution atomized water spraying device and slaked lime powder spraying device, make dividing plate one end be fixed on body upper end, cabin or lower end, between the other end and cabin body, form through hole, and adjacent separator goes to upper and lower the staggered cabin intracoelomic cavity that is fixed on, the desulphurization reaction time that design can prolong smoke like this.
Further beneficial effect of the present invention is: be convenient to by the end setting that suspends at dividing plate the radian edge that smoke gas flow is crossed, be convenient to that flue gas is smooth and easy enters doctor solution atomized water spraying device region and slaked lime powder spraying device region is reacted.
Further beneficial effect of the present invention is: be set to be distributed in up and down two atomizing water nozzles on the first body by doctor solution atomized water spraying device, atomizing particle can be reached below 50 microns, accurate cement-water ratio has ensured good humidification activation effect, and ensures itself and H2SO3Under optimum temperature, react, thereby obtain higher desulfuration efficiency, take up an area less, reduced investment, operating cost is low, non-secondary pollution.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is parabola air ducting structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can be implemented, but illustrated embodiment is not as a limitation of the invention so that those skilled in the art can better understand the present invention also.
As shown in Figure 1, Refining Equipmeut for Desulfuration in Gas of the present invention, comprise the cabin body 2 being communicated with the right-hand member of boiler smoke pipeline 1, the right-hand member of cabin body 2 is provided with purifying smoke outlet 3, the inner chamber left part upper end of cabin body 2 is provided with multiple doctor solution atomized water spraying devices, doctor solution atomized water spraying device is connected with the atomized liquid reserving chamber 4 that doctor solution is housed, doctor solution atomized water spraying device comprises that on the first body 5, the first bodys 5 that are communicated with atomized liquid reserving chamber 4, being provided with two is the atomizing water nozzle 6 distributing up and down. atomized liquid reserving chamber 4 be arranged at cabin body 2 above and be positioned at directly over doctor solution atomized water spraying device, the lower end of atomized liquid reserving chamber 4 is communicated with the first body 5. the inner chamber upper end of cabin body 2 is positioned at doctor solution atomized water spraying device left and is provided with parabola air ducting, shown in Fig. 2, parabola air ducting comprises that one end is fixed on two side plates 7 of cabin body 2 inner chamber upper ends, the other end of two side plates 7 is to downward-extension and be positioned at doctor solution atomized water spraying device below, between two side plates 7, be interval with from left to right multiple parabola shaped leaf wings 8 that are, the end that suspends of leaf wing 8, towards lower right, forms air-guiding hole 9 between adjacent leaf wing 8. the inner chamber right part upper end of cabin body 2 is provided with multiple slaked lime powder spraying devices, slaked lime powder spraying device is connected with the slaked lime powder reserving chamber 10 that slaked lime powder is housed, slaked lime powder spraying device comprises the second body 11 being communicated with slaked lime powder reserving chamber 10, on the second body 11, be provided with two and be the fluid bed 12 distributing up and down, this fluid bed 12 is circulation suspension flow fluidized bed reactor. slaked lime powder reserving chamber 10 be arranged at cabin body 2 above and be positioned at directly over slaked lime powder spraying device, the lower end of slaked lime powder reserving chamber 10 is communicated with the second body 11. the position of the inner chamber of cabin body 2 between doctor solution atomized water spraying device and slaked lime powder spraying device is provided with the first dividing plate 13 and second partition 14, the first dividing plate 13 is positioned at the left of second partition 14, the inner chamber lower end of cabin body 2 is fixed in the lower end of the first dividing plate 13, between the top of the first dividing plate 13 and cabin body 2, form the first through hole 15, the upper end of the first dividing plate 13 is provided with the first radian to upper left side bending along 16, the inner chamber upper end of cabin body 2 is fixed in the upper end of second partition 14, between second partition 14 belows and cabin body 2, form the second through hole 17, the lower end of second partition 14 is provided with the second radian to lower right bending along 18. the lower end of cabin body 2 is connected with the ash bucket 19 of back taper. the lower end of ash bucket 19 connects circulating ash and returns to storehouse pump 20. this device also comprises gas tank 21, and gas tank 21 is connected with tracheae 22, and the first through hole 15 places are stretched in the upper end of tracheae 22.
When work, the parabola air ducting place of flue gas in boiler smoke pipeline 1 enters cabin body 2, under parabola shaped leaf wing 8 effects of parabola air ducting, air velocity declines and guides flue gas to produce downwards and two strands of air-flows upwards, the air-flow that flows downward drives larger dust granules in flue gas to move down, because downward air-flow rushes at accumulating at lower part ash bucket 19, and speed reduces completely under ash bucket 19 resistances, make larger dust granules in flue gas that downward flue gas drives fall into ash bucket 19, reach dirt and fall the object of larger dust granules; And carrying less dust granules in gas tank 21 and tracheae 22 under Compressed Gas effect, updraft enters doctor solution atomized water spraying device region, the doctor solution atomized water that flue gas sprays out through atomizing water nozzle 6, the SO in flue gas after by the first through hole 152With H2O reaction generates H2SO3And the temperature of reaction product is reduced to enter in slaked lime powder spraying device region and reaches the slaked lime powder optimal reaction temperature spraying out with fluid bed 12, reach best gas-solid turbulent mixture and constantly expose unreacted calcium hydroxide (Ca (OH)2) new surface, make desulfurizing agent there is the very long time of staying by the repeatedly circulation of solid material simultaneously, thereby greatly improved utilization rate and the desulfuration efficiency of calcium hydroxide depickling, and hydrogen chloride pollutant and calcium hydroxide (Ca (OH) in flue gas2) reaction is removed, compared with other flue gas desulfurization, it is simple in structure, floor space is little, cost is low, reliable, and the final solid product producing is easy to process.
Its concrete chemical reaction process is: when doctor solution atomized water fully contacts with flue gas through atomizing water nozzle 6, and the cooling and humidification of flue gas, calcium hydroxide (Ca (OH)2) the same H of powder particles2O、SO2Generate dry powder product Deng reaction, whole reaction is divided into gas phase, liquid phase and three kinds of state responses of solid phase, and reactions steps and equation are as follows:
（1）SO2By H2O drop absorbs;
SO2(gas)+H2O→H2SO3(liquid) (sulfurous acid)
(2) SO absorbing2With the absorbent Ca (OH) of solution2Reaction generates (calcium sulfite)
Ca(OH)2(liquid)+H2SO3(liquid) → CaSO3(liquid)+2H2O
Ca(OH)2(Gu)+H2SO3(liquid) → CaSO3(liquid)+2H2O
(3) CaSO in drop3After reaching capacity, start crystallization
CaSO3(liquid) → CaSO3(Gu)
(4) CaSO in part solution3React with the oxygen being dissolved in drop, be oxidized to calcium sulfate
CaSO3(liquid)+1/2O2(liquid) → CaSO4(liquid)
（5）CaSO4(liquid) solubility is low, thus crystallization
CaSO4(liquid) → CaSO4(Gu)
(6) Ca (OH) to the reaction that is not able to do in time2(Gu), and be included in CaSO3(Gu), CaSO4The Ca (OH) in (Gu)2Gu () carries out humidification atomization
Ca(OH)2(Gu) → Ca (OH)2(liquid)
SO2(gas)+H2O→H2SO3(liquid)
Ca(OH)2(liquid)+H2SO3(liquid) → CaSO3(liquid)+2H2O
CaSO3(liquid) → CaSO3(Gu)
CaSO3(liquid)+1/2O2(liquid) → CaSO4(liquid)
CaSO4(liquid) → CaSO4(Gu).
The above embodiment is only the preferred embodiment for absolutely proving that the present invention lifts, and protection scope of the present invention is not limited to this. What those skilled in the art did on basis of the present invention is equal to alternative or conversion, all within protection scope of the present invention. Protection scope of the present invention is as the criterion with claims.
Claims (9)
1. a Refining Equipmeut for Desulfuration in Gas, is characterized in that: comprise the cabin body being communicated with boiler smoke pipeline right-hand member, described cabinBody right-hand member is provided with purifying smoke outlet, and intracoelomic cavity left part upper end, described cabin is provided with multiple doctor solution atomized water spraying devices, described inDoctor solution atomized water spraying device is connected with the atomized liquid reserving chamber that doctor solution is housed, and intracoelomic cavity right part upper end, described cabin is provided with manyIndividual slaked lime powder spraying device, described slaked lime powder spraying device is connected with the slaked lime powder reserving chamber that slaked lime powder is housed, instituteState body lower end, cabin and connect ash bucket, intracoelomic cavity upper end, described cabin is positioned at doctor solution atomized water spraying device left and is provided with parabolaAir ducting, described parabola air ducting comprises that one end is fixed on two side plates of intracoelomic cavity upper end, cabin, two side plates anotherEnd is to downward-extension and be positioned at doctor solution atomized water spraying device below, is interval with from left to right multiple throwings that are between two side platesThe leaf wing that thing is linear, the end that suspends of described leaf wing, towards lower right, forms air-guiding hole between adjacent leaf wing.
2. Refining Equipmeut for Desulfuration in Gas according to claim 1, is characterized in that: also comprise gas tank, described gas tank and gasPipe connects, and the top of doctor solution atomized water spraying device one side is stretched in described tracheae upper end.
3. Refining Equipmeut for Desulfuration in Gas according to claim 2, is characterized in that: described ash bucket lower end connects circulating ashReturn to storehouse pump.
4. Refining Equipmeut for Desulfuration in Gas according to claim 1, is characterized in that: described cabin intracoelomic cavity is positioned at doctor solution mistThe position of changing between water spraying device and slaked lime powder spraying device is provided with at least one dividing plate, and one end of described dividing plate is fixed onThe upper end of cabin body or lower end, form through hole between its other end and cabin body, and adjacent separator goes to upper and lower staggered being fixed in the body of cabinChamber.
5. Refining Equipmeut for Desulfuration in Gas according to claim 4, is characterized in that: the end that suspends of described dividing plate is provided with justThe radian edge of crossing in smoke gas flow.
6. Refining Equipmeut for Desulfuration in Gas according to claim 1, is characterized in that: described doctor solution atomized water spraying deviceComprise the first body being communicated with atomized liquid reserving chamber, on described the first body, be provided with two and be the atomized water spray distributing up and downMouth, described atomized liquid reserving chamber is arranged at above the body of cabin and is positioned at directly over doctor solution atomized water spraying device described atomized liquidReserving chamber lower end is communicated with described the first body.
7. Refining Equipmeut for Desulfuration in Gas according to claim 1, is characterized in that: described slaked lime powder spraying device comprisesThe second body being communicated with slaked lime powder reserving chamber, described the second body is provided with fluid bed.
8. Refining Equipmeut for Desulfuration in Gas according to claim 7, is characterized in that: described slaked lime powder reserving chamber is arranged atAbove the body of cabin and be positioned at directly over slaked lime powder spraying device, described slaked lime powder reserving chamber lower end and described the second body connectLogical.
9. Refining Equipmeut for Desulfuration in Gas according to claim 1, is characterized in that: described ash bucket is back taper bucket.
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| CN1257760C (en) * | 2003-04-28 | 2006-05-31 | 樊金鑫 | Combined two-stage flue gas desulfurization and dust-eliminating process |
| US7625537B2 (en) * | 2006-06-12 | 2009-12-01 | Alstom Technology Ltd | Integrated dry and wet flue gas cleaning process and system |
| CN102489129B (en) * | 2011-12-14 | 2014-01-08 | 山东中玻节能环保发展有限公司 | Industrial flue gas purification, desulfurization and denitrification integrated device and working method thereof |
| CN103446863B (en) * | 2013-01-10 | 2015-10-28 | 番禺珠江钢管（连云港）有限公司 | A kind of partition type vapor liquid heat exchange and flue gas desulfur device and sulfur method |
| CN203777912U (en) * | 2014-01-23 | 2014-08-20 | 冀文平 | Flue gas desulfurization and purification device |
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Effective date of registration: 20170405 Address after: 075400 Zhangjiakou City, Hebei Province Economic Development Zone City Patentee after: Hebei dragon Daofeng Electric Technology Co. Ltd. Address before: 100081 Beijing, Zhongguancun, South Street, No. 32, building 17, floor 1, Patentee before: Ji Wenping |
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Effective date of registration: 20210526 Address after: 075499 in the courtyard of Huailai Tianyuan special glass Co., Ltd., Shacheng Town Industrial Park, Huailai County, Zhangjiakou City, Hebei Province Patentee after: Hebei shusiteri Heavy Industry Technology Co.,Ltd. Address before: 075400 Shacheng Economic Development Zone, Zhangjiakou City, Hebei Province Patentee before: Hebei dragon Daofeng Electric Technology Co.,Ltd. |