CN105126594A - Variable-diameter desulfurizing tower - Google Patents
Variable-diameter desulfurizing tower Download PDFInfo
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- CN105126594A CN105126594A CN201510595909.0A CN201510595909A CN105126594A CN 105126594 A CN105126594 A CN 105126594A CN 201510595909 A CN201510595909 A CN 201510595909A CN 105126594 A CN105126594 A CN 105126594A
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Abstract
The invention discloses a variable-diameter desulfurizing tower. The variable-diameter desulfurizing tower comprises an absorbing tower, a demister and a slurry pond, wherein an absorbing tower inlet is arranged in the middle of the absorbing tower, an absorbing tower outlet is arranged at the top of the absorbing tower, five spray layers are arranged above the absorbing tower inlet, and each spray layer is provided with multiple nozzles; the demister is located at the upper part of the absorbing tower and arranged between a fifth spray layer and the absorbing tower outlet, the diameter of the part above the fifth spray layer is larger than that of an absorbing tower body, and the dispersion angle of the part above the fifth spray layer is in a range of 100-107 degrees; the slurry pond is arranged at the lower part of the absorbing tower, the diameter of the lower part of the slurry pond is larger than that of the absorbing tower body, and the contraction angle of the lower part of the slurry pond is in a range of 60-67 degrees. The variable-diameter desulfurizing tower has the benefits as follows: the coverage rate of nozzle slurry is increased by the aid of the five spray layers provided with the multiple nozzles; due to the variable diameter of the part above the spray layers and the variable diameter of the lower part of the slurry pond, the retention time of limestone slurry in the absorbing tower is prolonged, the circulation volume of the slurry is guaranteed, and full contact of the limestone slurry with flue gas is guaranteed.
Description
Technical field
The present invention relates to technical field of desulfurization, in particular to a kind of variable diameters desulfurizing tower.
Background technology
Send out change the energy [2014] No. 2093 literary compositions according to " coal electricity energy-saving and emission-reduction upgrading and transformation action plan " (2014-2020), fossil-fired unit will carry out environmental protection upgrading, discharge of major pollutant progressively all realizes minimum discharge, namely, under benchmark oxygen content 6% condition, flue dust, sulfur dioxide, NOx be not respectively higher than the emission limit of 10mg/Nm3,35mg/Nm3,50mg/Nm3.Therefore to existing environmental protection facility carry out minimum discharge transformation be necessary.
In recent years, wet method calcium base flue gas desulfurization (FGD) technology is used widely due to advantages such as it are safe and reliable to operation, desulfuration efficiency is high, sorbent utilization is high, applicability is strong.Spray column because of its tower inner member is few, desulphurization plant is less scaling and blocking, the pressure loss also less, operation maintenance is comparatively easy, obtains abundant utilization in desulfurizer at home and abroad.But, the above diameter of spraying layer of existing spray column and tower body diameter unanimous between the higher and lower levels, slurry pool section diameter and tower body diameter unanimous between the higher and lower levels, minimum discharge environmental requirement can not be met.Along with the raising of national environmental standard, built desulphurization system arranges SO outward
2, flue dust is not up to standard, therefore needs capacity-increasing transformation.
Summary of the invention
For solving the problem, the object of the present invention is to provide a kind of ensure slurries internal circulating load and the variable diameters desulfurizing tower that fully contacts with flue gas of lime stone slurry.
The invention provides a kind of variable diameters desulfurizing tower, comprising:
Absorption tower, be provided with absorption tower entrance in the middle part of it, top be provided with absorption tower outlet, the top of described absorption tower entrance is provided with the first spraying layer, the second spraying layer, the 3rd spraying layer, the 4th spraying layer, the 5th spraying layer, and described first spraying layer, described second spraying layer, described 3rd spraying layer, described 4th spraying layer and described 5th spraying layer are equipped with multiple nozzle;
Demister, it is positioned at top, described absorption tower, and be located at described 5th spraying layer and described absorption tower outlet between, described 5th spraying layer is greater than the diameter of described absorption tower body with the diameter of upper part, described 5th spraying layer with the diffusion angle of upper part for A;
Slurry pool, it is located at the bottom on described absorption tower, and the diameter of described slurry pool bottom is greater than the diameter of described absorption tower body, and the converging angles of described slurry pool bottom is B;
Wherein, described angle A is 100 ° ~ 107 °, and described angle B is 60 ° ~ 67 °.
Further improve as the present invention, the nozzle on described first spraying layer, described second spraying layer, described 3rd spraying layer, described 4th spraying layer and described 5th spraying layer is Bidirectional nozzle.
Further improve as the present invention, the nozzle on described first spraying layer, described second spraying layer, described 3rd spraying layer, described 4th spraying layer and described 5th spraying layer is unidirectional nozzle.
Further improve as the present invention, between the blade of described demister, flue gas flow rate should be 3.2m/s ~ 3.7m/s.
Preferred as the present invention, described angle A is 105 °.
Preferred as the present invention, described angle B is 64 °.
Beneficial effect of the present invention is:
1, by having the setting of five layers of spraying layer of multiple nozzle, improve the coverage rate of nozzle slurries, thus improve the desulfuration efficiency of system;
2, by spraying layer with the reducing of the reducing of upper part and slurry pool bottom, make lime stone slurry elongated in the time of staying on absorption tower, ensure that the internal circulating load of slurries and lime stone slurry fully contact with flue gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of variable diameters desulfurizing tower described in the embodiment of the present invention.
In figure,
1, absorption tower; 11, absorption tower entrance; 12, absorption tower outlet; 21, the first spraying layer; 22, the second spraying layer; 23, the 3rd spraying layer; 24, the 4th spraying layer; 25, the 5th spraying layer; 3, demister; 4, slurry pool.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
As shown in Figure 1, the variable diameters desulfurizing tower described in the embodiment of the present invention, comprises 1, five, absorption tower spraying layer, demister 3 and slurry pool 4.Be provided with absorption tower entrance 11 in the middle part of absorption tower 1, top be provided with absorption tower outlet 12, the top of absorption tower entrance 11 is provided with the first spraying layer 21, second spraying layer 22, the 3rd spraying layer 23, the 4th spraying layer 24, the 5th spraying layer 25, first spraying layer 21, second spraying layer 22, the 3rd spraying layer 23, the 4th spraying layer 24 and the 5th spraying layer 25 and is equipped with multiple nozzle.Demister 3 is positioned at top, absorption tower 1, and is located between the 5th spraying layer 25 and absorption tower outlet 12, and the 5th spraying layer 25 is greater than the diameter of absorption tower 1 body with the diameter of upper part, the 5th spraying layer 25 is 100 ° ~ 107 ° with the diffusion angle of upper part.Slurry pool 4 is located at the bottom on absorption tower 1, and the diameter of slurry pool 4 bottom is greater than the diameter of absorption tower 1 body, and the converging angles of slurry pool 4 bottom is 60 ° ~ 67 °.
Wherein, the nozzle on the first spraying layer 21, second spraying layer 22, the 3rd spraying layer 23, the 4th spraying layer 24 and the 5th spraying layer 25 is Bidirectional nozzle or unidirectional nozzle.
Between the blade of demister 3, flue gas flow rate should be 3.2m/s ~ 3.7m/s.
The present embodiment is preferred, and angle A is 105 °.
The present embodiment is preferred, and angle B is 64 °.
During concrete use, after flue gas absorption tower entrance 11 from below enters, the slurries sprayed with the first spraying layer 21, second spraying layer 22 in absorption tower 1, the 3rd spraying layer 23, the 4th spraying layer 24, the 5th spraying layer 25 contact, the setting of multiple nozzle on spraying layer, improve the coverage rate of nozzle slurries, thus improve the desulfuration efficiency of system, the absorption tower outlet 12 of the flue gas after desulfurization above absorption tower 1 is flowed out.By spraying layer with the reducing of the reducing of upper part and slurry pool bottom, make slurries elongated in the time of staying on absorption tower 1, ensure that the internal circulating load of slurries and slurries fully contact with flue gas, substantially increase the utilization rate of desulfurizing agent and the removal efficiency of sulfur dioxide.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a variable diameters desulfurizing tower, is characterized in that, comprising:
Absorption tower (1), be provided with absorption tower entrance (11) in the middle part of it, top be provided with absorption tower outlet (12), the top on described absorption tower entrance (11) is provided with the first spraying layer (21), the second spraying layer (22), the 3rd spraying layer (23), the 4th spraying layer (24), the 5th spraying layer (25), and described first spraying layer (21), described second spraying layer (22), described 3rd spraying layer (23), described 4th spraying layer (24) and described 5th spraying layer (25) are equipped with multiple nozzle;
Demister (3), it is positioned at described absorption tower (1) top, and be located between described 5th spraying layer (25) and described absorption tower outlet (12), described 5th spraying layer (25) is greater than the diameter of described absorption tower (1) body with the diameter of upper part, described 5th spraying layer (25) with the diffusion angle of upper part for A;
Slurry pool (4), it is located at the bottom of described absorption tower (1), the diameter of described slurry pool (4) bottom is greater than the diameter of described absorption tower (1) body, and the converging angles of described slurry pool (4) bottom is B;
Wherein, described angle A is 100 ° ~ 107 °, and described angle B is 60 ° ~ 67 °.
2. variable diameters desulfurizing tower according to claim 1, it is characterized in that, the nozzle on described first spraying layer (21), described second spraying layer (22), described 3rd spraying layer (23), described 4th spraying layer (24) and described 5th spraying layer (25) is Bidirectional nozzle.
3. variable diameters desulfurizing tower according to claim 1, it is characterized in that, the nozzle on described first spraying layer (21), described second spraying layer (22), described 3rd spraying layer (23), described 4th spraying layer (24) and described 5th spraying layer (25) is unidirectional nozzle.
4. variable diameters desulfurizing tower according to claim 1, is characterized in that, between the blade of described demister (3), flue gas flow rate should be 3.2m/s ~ 3.7m/s.
5. variable diameters desulfurizing tower according to claim 1, is characterized in that, described angle A is 105 °.
6. variable diameters desulfurizing tower according to claim 1, is characterized in that, described angle B is 64 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595909.0A CN105126594A (en) | 2015-09-17 | 2015-09-17 | Variable-diameter desulfurizing tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595909.0A CN105126594A (en) | 2015-09-17 | 2015-09-17 | Variable-diameter desulfurizing tower |
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| CN105126594A true CN105126594A (en) | 2015-12-09 |
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| CN201510595909.0A Pending CN105126594A (en) | 2015-09-17 | 2015-09-17 | Variable-diameter desulfurizing tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413442A (en) * | 2015-12-15 | 2016-03-23 | 浙江百能科技有限公司 | Vertical desulfurization tower |
| CN105879588A (en) * | 2016-05-19 | 2016-08-24 | 大唐环境产业集团股份有限公司 | Double-circulation diameter-variable desulfurization and absorption system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH034915A (en) * | 1989-06-02 | 1991-01-10 | Nippon Sanso Kk | Adsorption column and pressure-variable adsorption-separation device |
| JPH08243348A (en) * | 1995-03-08 | 1996-09-24 | Babcock Hitachi Kk | Operation of wet desulfurizer |
| CN2892254Y (en) * | 2006-04-07 | 2007-04-25 | 北京龙源环保工程有限公司 | Wet desulfating flue exhausting integrated apparatus |
| CN101890292A (en) * | 2010-08-08 | 2010-11-24 | 北京北科欧远科技有限公司 | Wet desulfurizing tower based on variable diameter design |
| CN202054810U (en) * | 2011-05-09 | 2011-11-30 | 上海多达环保实业有限公司 | Wet desulfurizer for methane desulfurization |
| CN204107309U (en) * | 2014-07-24 | 2015-01-21 | 大唐科技产业集团有限公司 | Desulfuration absorbing tower |
| CN205127725U (en) * | 2015-09-09 | 2016-04-06 | 大唐环境产业集团股份有限公司 | Novel reducing desulfurization absorption tower |
-
2015
- 2015-09-17 CN CN201510595909.0A patent/CN105126594A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH034915A (en) * | 1989-06-02 | 1991-01-10 | Nippon Sanso Kk | Adsorption column and pressure-variable adsorption-separation device |
| JPH08243348A (en) * | 1995-03-08 | 1996-09-24 | Babcock Hitachi Kk | Operation of wet desulfurizer |
| CN2892254Y (en) * | 2006-04-07 | 2007-04-25 | 北京龙源环保工程有限公司 | Wet desulfating flue exhausting integrated apparatus |
| CN101890292A (en) * | 2010-08-08 | 2010-11-24 | 北京北科欧远科技有限公司 | Wet desulfurizing tower based on variable diameter design |
| CN202054810U (en) * | 2011-05-09 | 2011-11-30 | 上海多达环保实业有限公司 | Wet desulfurizer for methane desulfurization |
| CN204107309U (en) * | 2014-07-24 | 2015-01-21 | 大唐科技产业集团有限公司 | Desulfuration absorbing tower |
| CN205127725U (en) * | 2015-09-09 | 2016-04-06 | 大唐环境产业集团股份有限公司 | Novel reducing desulfurization absorption tower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413442A (en) * | 2015-12-15 | 2016-03-23 | 浙江百能科技有限公司 | Vertical desulfurization tower |
| CN105879588A (en) * | 2016-05-19 | 2016-08-24 | 大唐环境产业集团股份有限公司 | Double-circulation diameter-variable desulfurization and absorption system and method |
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Application publication date: 20151209 |
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