CN202315698U - Flue gas desulfurizing tower with crushing device - Google Patents
Flue gas desulfurizing tower with crushing device Download PDFInfo
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- CN202315698U CN202315698U CN2011204833247U CN201120483324U CN202315698U CN 202315698 U CN202315698 U CN 202315698U CN 2011204833247 U CN2011204833247 U CN 2011204833247U CN 201120483324 U CN201120483324 U CN 201120483324U CN 202315698 U CN202315698 U CN 202315698U
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- tower
- flue gas
- air
- tower body
- desulfurizing tower
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Abstract
The utility model discloses a flue gas desulfurizing tower with a crushing device. The flue gas desulfurizing tower comprises a tower body; a desulfurized slag discharge port, an ash poking port and a flue gas inlet are arranged at the lower part of the tower body; a return ash inlet, a desulfurizing agent inlet and a nozzle interface are arranged at the middle part of the tower body; a flue gas outlet is arranged on the upper end of the tower body; a desulfurizing tower outlet necking section is arranged between the desulfurized slag discharge port and the flue gas inlet; 4-20 discrete air distributing devices are uniformly arranged on an internal inclined plane of the necking section; air outlets with a wind direction tilted upwards are formed on the air distributing devices; and a crushing device is further arranged in the tower body, and the crushing device is arranged on the upper end of the air distributing devices. According to the flue gas desulfurizing tower provided by the utility model, the air distributing devices are arranged at the necking section, and the crushing device is arranged on the upper ends of the air distributing devices, thus, flying ash falling in the tower is firstly crushed by the crushing device and then is blown by the air distributing devices to mix with the flue gas again, the air distributing devices can blow the flying ash, and can improve the smoothness distribution in the tower through the function of airflow, thereby improving the desulfurization efficiency.
Description
Technical field
The utility model belongs to technical field of chemical, specifically is a kind of desulfurizing tower that flue gas is handled that is used for.
Background technology
Pernicious gases such as the sulfur dioxide in flue gas that produces when fire coal, fuel oil, combustion gas, nitrogen oxide enter atmosphere, cause acid rain, destroy ecological environment, influence the healthy of people.To the more strict control control criterion of the relevant environmental regulation of China to the permission concentration of emission proposition of sulfur dioxide in flue gas, nitrogen oxide, various flue gas desulfurization technique method and apparatus arise at the historic moment.
Coal-burning sulfur dioxide control method can be divided three classes: desulfurization and burning back desulfurization (flue gas desulfurization) in desulfurization before the burning, the burning, wherein flue gas desulfurization is considered to control SO
2Pollute valid approach.With regard to flue gas desulfurization technique, the present flue gas desulfurization technique of being used widely and having developed mainly contains 4 kinds:
Wet type limestone/gypsum absorption process (Wet-FGD)
Dry spraying dry decontamination technology (SDA)
Humidification water activation method (LIFAC) behind the in-furnace calcium spraying
Recirculating fluidized bed flue gas purifying technique (CFB-FGD)
The recirculating fluidized bed flue gas purifying technique is to be the basis with the recirculating fluidized bed principle, through the repeatedly recirculation of absorbent, the time of contact of extension of absorbent and flue gas, has improved the utilization rate of absorbent greatly.The recirculating fluidized bed flue gas purifying technique will add the Ca (OH) of desulfurizing tower
2SO in powder and the flue gas
2And other compositions such as SO in the flue gas
3, sour gas such as HCl, HF fully contact mixing, the atomized water that the desulfurizing tower porch sprays into reduces flue-gas temperature on the one hand, guarantees optimum reaction condition, on the other hand at Ca (OH)
2The surface of particle forms liquid phase.Ca (OH) in the desulfurizing tower
2Powder, flue gas and the moisture that sprays into fully mix under suspended state, and through excessive Ca (OH)
2Powder is repeatedly circulation in desulfurizing tower, is under 1.3 ~ 1.6 conditions at appropriate C a/S ratio, makes SO in the flue gas
2, SO
3Absorbed more fully Deng the sour gas physical efficiency, realized the efficient utilization of high-efficiency desulfurization and desulfurizing agent.
Desulfurizing tower directly influences the desulfuration efficiency of a whole set of desulphurization system as the critical component of recirculating fluidized bed flue gas purifying technique.In order to guarantee the abundant fluidisation and the suspension of desulfurizing agent and flying dust in the desulfurizing tower; Generally one or several ash discharging hole is set in the desulfurizing tower bottom; To discharge the bigger lime-ash of particle; Thereby form flow field preferably, be beneficial to the desulfurizing tower flow field and be evenly distributed, thereby desulfurizing agent and fly ash granule can fully mix in desulfurizing tower with flue gas.Practice result shows that the bottom of desulfurizing tower is provided with push-pull valve, and regularly carries out scarfing cinder at the bottom of the tower, help reducing drag losses, and desulfurized effect makes moderate progress.The defective that existing this desulfurizing tower bottom adds the design existence of push-pull valve has: the boiler oxygen content increases; Defectives such as flowing field stability difference and flow process distribution are asymmetric.
Summary of the invention
The utility model technical problem to be solved is the deficiency to above-mentioned prior art, and provide a kind of flow field in tower of stably desulphurizing better, further reduce flue gas flow through in the desulfurizing tower drag losses and improve the desulfurizing tower load adaptability can circulating fluid bed flue gas desulfurization tower.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of fume desulfurizing tower with reducing mechanism, comprise tower body, and be provided with desulfurization slag outlet, ash poking mouth and gas approach in the bottom of tower body; Be provided with returning charge ash inlet at the middle part of tower body; Desulfurizing agent inlet and nozzle interface are provided with exhanst gas outlet in the upper end of tower body, are desulfurizing tower outlet reducing section between described desulfurization slag outlet and the gas approach; It is characterized in that: on the inner chamfer of this reducing section, be provided with 4～20 discrete air-distribution devices uniformly; Said air-distribution device has the air outlet that wind direction is tilted to, and in described tower body, also is provided with reducing mechanism, and this reducing mechanism is arranged on the upper end of air-distribution device; Described reducing mechanism comprises rotating shaft and is arranged on the pulverizing blade in the rotating shaft that this pulverizing blade is the screw type blade.
Described air-distribution device comprises cloth wind chamber and perforated distributor, on cloth wind chamber, is connected with airduct, and described air outlet is arranged on the perforated distributor.
Described air-distribution device also comprises canvas layer, and canvas layer is arranged on the perforated distributor inboard.
The utility model is provided with air-distribution device in the reducing section; And reducing mechanism is installed in air-distribution device upper end, thus the flying dust that falls in the tower is blown afloat and mixes once more with flue gas through air-distribution device again after reducing mechanism is pulverized earlier, air-distribution device not only can blow afloat flying dust; Can also be through smooth distribution the in the improved effect tower of air-flow; Improve desulfuration efficiency, compared with prior art, have following advantage:
(1) adapts to desulfurizing agent than other and change the treating method that causes that the desulphurization system resistance increases, more low power consuming is arranged;
(2) improve smooth distribution the in the desulfurizing tower, imitate desulfurization thereby improve;
(3) increase the load variations scope that desulfurizing tower causes adapting to different desulfurizing agents, improve adaptability boiler.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural representation of the utility model desulfurizing tower reducing section.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the utility model air-distribution device structural representation.
Wherein: 1, tower body, 2, the desulfurization slag outlet, 3, the ash poking mouth, 4, gas approach, 5, the desulfurizing agent inlet, 6, returning charge ash inlet; 7, manhole, 8, nozzle interface, 9, exhanst gas outlet, 10, air-distribution device, 11, cloth wind chamber, 12, airduct; 13, air distribution plate, 14, canvas layer, 15, band steel; 16, bolt, 17, angle steel, 18, Ta Bi, 19, rotating shaft, 20, pulverize blade.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, as shown in Figure 1, shown in Figure 2; A kind of circulating fluid bed flue gas desulfurization tower of the utility model comprises the tower body 1 that is made up of smoke-box, spurt chamber and desulfurization chamber, is provided with desulfurization slag outlet 2, ash poking mouth 3 and gas approach 4 in the bottom of tower body 1; Be provided with returning charge ash inlet 6 at the middle part of tower body 1, desulfurizing agent inlet 5 and nozzle interface 8 are provided with exhanst gas outlet 9 in the upper end of tower body 1; Be desulfurizing tower outlet reducing section between desulfurization slag outlet 2 and the gas approach 4, the reducing section is square shape circularly all day long, on the inner circular awl inclined-plane of reducing section, is provided with air-distribution device 10 uniformly; The quantity of air-distribution device 10 is 4～20; Air-distribution device 10 has the air outlet that wind direction is tilted to, and in tower body, also is provided with reducing mechanism, disguises the upper end that crushing device is arranged on air-distribution device 10; Reducing mechanism comprises rotating shaft 19 and is arranged on the pulverizing blade 20 in the rotating shaft that this pulverizes blade 20 is the screw type blade.Reducing mechanism leans on and makes the spiral vane rotation that power is provided under the flue gas effect, need not to increase additional electric motors and drives.
Air-distribution device comprises cloth wind chamber 11, canvas layer 14 and perforated distributor 13; On cloth wind chamber 11, be connected with airduct 12; Canvas layer 14 is arranged on perforated distributor 13 inboards, and air outlet is arranged on the perforated distributor 13, and the cloth bag material of the common sack cleaner of canvas layer 14 usefulness gets final product; Canvas layer 14 adopts band steel 15 and bolt 16 to be fixed together with air distribution plate 13; Be fixed on the tower wall 18 through angle steel 17 at last, between angle steel 17, tower wall 18 and canvas layer, form cloth wind chamber 11, see Fig. 5.In the present embodiment, the number of air-distribution device 10 is 8, wherein 4 little, 4 are big, referring to Fig. 3 and Fig. 4.
Claims (3)
1. the fume desulfurizing tower with reducing mechanism comprises tower body, is provided with desulfurization slag outlet, ash poking mouth and gas approach in the bottom of tower body; Be provided with returning charge ash inlet at the middle part of tower body; Desulfurizing agent inlet and nozzle interface are provided with exhanst gas outlet in the upper end of tower body, are desulfurizing tower outlet reducing section between described desulfurization slag outlet and the gas approach; It is characterized in that: on the inner chamfer of this reducing section, be provided with 4～20 discrete air-distribution devices uniformly; Said air-distribution device has the air outlet that wind direction is tilted to, and in described tower body, also is provided with reducing mechanism, and this reducing mechanism is arranged on the upper end of air-distribution device; Described reducing mechanism comprises rotating shaft and is arranged on the pulverizing blade in the rotating shaft that this pulverizing blade is the screw type blade.
2. the fume desulfurizing tower with reducing mechanism according to claim 1 is characterized in that: described air-distribution device comprises cloth wind chamber and cloth wind porous plate, on cloth wind chamber, is connected with airduct, and described air outlet is arranged on the porous plate.
3. the fume desulfurizing tower with reducing mechanism according to claim 1 and 2 is characterized in that: described air-distribution device also comprises canvas layer, and this canvas layer is arranged on the perforated distributor inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204833247U CN202315698U (en) | 2011-11-29 | 2011-11-29 | Flue gas desulfurizing tower with crushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204833247U CN202315698U (en) | 2011-11-29 | 2011-11-29 | Flue gas desulfurizing tower with crushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202315698U true CN202315698U (en) | 2012-07-11 |
Family
ID=46427700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204833247U Withdrawn - After Issue CN202315698U (en) | 2011-11-29 | 2011-11-29 | Flue gas desulfurizing tower with crushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202315698U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512943A (en) * | 2011-11-29 | 2012-06-27 | 南京龙玖环境工程有限公司 | Smoke desulfurization tower with smashing device |
| CN109224771A (en) * | 2018-08-23 | 2019-01-18 | 安徽长江钢铁股份有限公司 | A kind of desulfurizing tower bottom sender device |
-
2011
- 2011-11-29 CN CN2011204833247U patent/CN202315698U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512943A (en) * | 2011-11-29 | 2012-06-27 | 南京龙玖环境工程有限公司 | Smoke desulfurization tower with smashing device |
| CN109224771A (en) * | 2018-08-23 | 2019-01-18 | 安徽长江钢铁股份有限公司 | A kind of desulfurizing tower bottom sender device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120711 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |