CN205988671U - A kind of single column Two-way Cycle high-efficiency desulfurization process system - Google Patents
A kind of single column Two-way Cycle high-efficiency desulfurization process system Download PDFInfo
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- CN205988671U CN205988671U CN201620950783.4U CN201620950783U CN205988671U CN 205988671 U CN205988671 U CN 205988671U CN 201620950783 U CN201620950783 U CN 201620950783U CN 205988671 U CN205988671 U CN 205988671U
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Abstract
This utility model is related to a kind of single column Two-way Cycle high-efficiency desulfurization process system, including main absorption tower, main stock tank and deutoplasm pond；Described main absorption tower bottom side setting smoke inlet, top arranges exhanst gas outlet；Main absorption tower bottom setting gypsum slurries oxidation stock tank is as main stock tank；The spray area on main absorption tower is set to two and absorbs interval：Major cycle spray area and secondary circulated sprinkling area.This utility model has the characteristics that following and beneficial effect：Main jet drenches area and secondary spray area sprayed slurry due to absorbing SO2, and the mass transfer elements of area's middle setting are sprayed through major-minor, strengthening absorbs merges SO2, the pH value of the serosity of final mixing is changed into 4.5～5.0, contribute to the oxidation through pressure oxidation air for the calcium sulfite in main stock tank serosity, become calcium sulfate, finally crystallize into Gypsum Fibrosum, gypsum slurries are discharged by Gypsum Fibrosum excavationg pump.
Description
Technical field
This patent is related to Limestone-gypsum Wet Flue Gas Desulfurization Process field and in particular to a kind of single column Two-way Cycle high-efficiency desulfurization technique
System.
Background technology
In recent years, country and the local continuously multinomial policy of appearance were it is desirable to coal-burning power plant stepped up to implement minimum discharge, its moderate heat
The SO of boiler of power plant2Concentration of emission needs as little as 35mg/m3Hereinafter, new environmental requirement to be met, need control coal burning machine further badly
Group flue gas SO2Discharge, improve desulfuration efficiency.And single column single cycle spray desulphurization system conventional at present is all difficult to meet want
Ask.
A lot of units have developed the techniques such as double tower double circulation desulphurization, single column double circulation desulphurization, and wherein double tower Two-way Cycle takes off
Sulfur, due to needing to arrange two absorption towers, runs by the way of in parallel or in series, higher to arrangement site requirements, Hen Duo electricity
Factory former absorption tower periphery place is difficult to meet double tower arrangement requirement.Absorption tower and auxiliary serosity based on single column double circulation desulphurization is basic
The structural shape of case, the top of the spraying layer on former absorption tower increases the spraying layer of transformation, and the serosity of spray needs to collect to tower
Outer auxiliary slurry tank；Bring main absorption tower top spray section and need to increase more space and carry out serosity collection device and cause to inhale
The big problem of receipts area space waste, improvement project amount.
Utility model content
The purpose of this utility model is to overcome prior art not enough, provides a kind of rational in infrastructure, improve desulfuration efficiency and
The single column Two-way Cycle high-efficiency desulfurization process system of desulfurization quality.
For realizing above-mentioned technical purpose, this utility model employs technical scheme below：This single column Two-way Cycle efficiently takes off
Sulfur process system, including main absorption tower, main stock tank and deutoplasm pond；Described main absorption tower bottom side setting smoke inlet, on
Portion arranges exhanst gas outlet；Main absorption tower bottom setting gypsum slurries oxidation stock tank is as main stock tank；The spray area on main absorption tower sets
It is set to two and absorb interval：Major cycle spray area and secondary circulated sprinkling area；Major cycle spray area is passed through using the serosity of main stock tank
Absorption tower slurry circulating pump is squeezed into spraying layer and is sprayed, and secondary circulated sprinkling area is followed by the outer serosity of tower using the serosity in deutoplasm pond
Ring pump is squeezed into spraying layer and is sprayed；Every layer of spraying layer is disposed with some nozzles, around the tower wall of uptake zone periphery
Nozzle angle adopts 90 °, and the nozzle angle positioned at other regions adopts 90 °, 120 ° or Bidirectional nozzle, the atomization coverage rate of nozzle
It is not less than 300%；Major cycle spray area and secondary circulated sprinkling area are all strong using top setting spraying layer, bottom setting one floor flue gas
Change the structure of mass transfer elements；In described absorption tower, major cycle spray area and secondary circulated sprinkling area are respectively provided with a floor airflow uniform distribution structure
Part；The main main stock tank configuration oxidation air system absorbing tower bottom.
As preferred：Main absorption tower adopts circular or square；Deutoplasm pond adopts circular, square or xoncrete structure pattern.
As preferred：Main stock tank adopts side stir device；Deutoplasm pond adopts side stir device or inputting type agitator.
As preferred：Airflow uniform distribution plate adopts porous media form, for circular or square hole.
As preferred：, all at least provided with ground floor spraying layer, ground floor sprays for major cycle spray area or secondary circulated sprinkling area
The spraying layer of two-layer or more can be arranged on layer.
As preferred：Major cycle spray area arranges 2～3 floor spraying layer, and secondary spray area arranges 1～2 floor spraying layer.
As preferred：The corresponding slurry circulating pump of every layer of spraying layer in major-minor circulated sprinkling area or two serum recycle
Pump.
As preferred：Oxidation air system adopts oxidation air spray gun or adopts oxidation air ductwork type.
This utility model has the characteristics that following and beneficial effect：
Main jet drenches area and secondary spray area sprayed slurry due to absorbing SO2, and sprays the biography of area's middle setting through major-minor
Quality structure part, strengthening absorbs merges SO2, and the pH value of the serosity of final mixing is changed into 4.5～5.0, contributes in main stock tank serosity
Calcium sulfite through pressure oxidation air oxidation, become calcium sulfate, finally crystallize into Gypsum Fibrosum, gypsum slurries are arranged by Gypsum Fibrosum
Go out pump to discharge.
The pH value of the serosity in deutoplasm pond is controlled to 5.5～6.0 by the amount adjusting fresh limestone serosity, the slurry of limestone
Liquid increment depends on desulfurization fume amount, sulfur content and existing pH value, and concrete foundation exports desulfurization general export SO2Control
Concentration tracing feedback regulation.Deutoplasm pond serosity squeezes into absorption tower secondary spray area by slurry circulating pump, due to secondary spray area spray
The high ph-values of serosity are conducive to SO in flue gas2Trapping again absorb.Ensure efficient desulfuration efficiency.
Both enable desulfuration efficiency to improve to more than 99%, improve the quality of desulfurated plaster；Can reduce again system energy consumption,
Reduce improvement cost, save place, convenient construction.
Brief description
Fig. 1 is the process structure schematic diagram of this patent；
Fig. 2 is airflow uniform distribution member planar arrangement schematic diagram in this patent；
Fig. 3 is the module diagram of airflow uniform distribution component in this patent；
Description of reference numerals：The communicating pipe 3 of the outer stock tank of main absorption tower 1, main stock tank 2, absorption tower stock tank and tower, deutoplasm pond 4,
The outer slurry circulating pump 5 of tower, the outer slurry circulating pump 6 of multiple stage tower, the limestone flow inlet 7 of the outer stock tank of tower, secondary circulated sprinkling area 8, suction
Receive tower slurry circulating pump 9, multiple stage absorption tower slurry circulating pump 10, major cycle spray area 11, lower floor's mass transfer or airflow uniform distribution component
12nd, upper strata mass transfer or airflow uniform distribution component 13, main stock tank side-feeding mixer 14, oxidation air spray gun 15, deutoplasm pond side-feeding type
Agitator 16, Gypsum Fibrosum excavationg pump 17.
Specific embodiment
With reference to embodiment, this utility model is described further.The explanation of following embodiments is only intended to help reason
Solution this utility model.It should be pointed out that for those skilled in the art, without departing from this utility model principle
On the premise of, this utility model can also be carried out with some improvement and modify, these improve and modification also falls into this utility model
In scope of the claims.
As shown in Figure 1 to Figure 3, the single column Two-way Cycle high-efficiency desulfurization process system of the present embodiment, main absorption tower 1 top is provided with
Major cycle sprays area 11, and main stock tank 2 is connected with an absorption tower slurry circulating pump 9 or multiple stage absorption tower slurry circulating pump 10, excellent
Elect 3 as；
Described main absorption tower 1 top is provided with secondary circulated sprinkling area 8, and deutoplasm pond 4 is connected with an absorption tower serum recycle
Pump 5 or multiple stage absorption tower slurry circulating pump 6, preferably 2；
Described major cycle spray area 11 constitutes main jet with lower floor's mass transfer or airflow uniform distribution component 12 and drenches area, and major cycle sprays
Area 11 is located at the top of lower floor's mass transfer or airflow uniform distribution component 12；
Described secondary circulated sprinkling area 8 and upper strata mass transfer or airflow uniform distribution component 13 constitute secondary spray area, secondary circulation spray
Drench the top that area 8 is located at upper strata mass transfer or airflow uniform distribution component 13；
Described main jet drenches area and constitutes first order desulfurization, the area's composition second level desulfurization of secondary spray, and main jet drenches area and is located at
The bottom in secondary spray area.
Described main stock tank 2 configures main stock tank side-feeding mixer 14, and the quantity being not limited to agitator has multiple stage；
Described deutoplasm pond 4 configuration deutoplasm pond side-feeding mixer 16, the quantity being not limited to agitator has multiple stage；
The slurry pH value in the limestone flow inlet 7 regulation deutoplasm pond 4 of the outer stock tank of tower is passed through in described deutoplasm pond 4, maintains
5.5～6.0 is interval；
Described secondary circulated sprinkling area 8 slurry circulating pump 5 outer with tower, the outer slurry circulating pump 6 of multiple stage tower connect corresponding；Master follows
It is corresponding with absorption tower slurry circulating pump 9, the connection of multiple stage absorption tower slurry circulating pump that ring spray drenches area 11；
Described secondary circulated sprinkling area 8 bottom setting upper strata mass transfer or airflow uniform distribution component 13 1 floor, major cycle sprays area
11 bottom setting lower floor's mass transfers or 12 1 layers of airflow uniform distribution component.
The serosity of described main stock tank 2 forms Gypsum Fibrosum through oxidizing and crystallizing, and gypsum slurries squeeze into stone by Gypsum Fibrosum excavationg pump 7
Cream dewatering system；The composition of gypsum dehydration system does not constitute the limiting factor to this patent.
Claims (8)
1. a kind of single column Two-way Cycle high-efficiency desulfurization process system it is characterised in that：Including main absorption tower (1), main stock tank (2) and pair
Stock tank (4)；Described main absorption tower (1) bottom side setting smoke inlet, top arranges exhanst gas outlet；Main absorption tower (1) bottom
Setting gypsum slurries oxidation stock tank in portion's is as main stock tank (2)；The spray area of main absorption tower (1) is set to two and absorbs interval：Main
Circulated sprinkling area (11) and secondary circulated sprinkling area (8)；Major cycle sprays area (11) and adopts the serosity of main stock tank (2) to pass through absorption tower
Slurry circulating pump (9) is squeezed into spraying layer and is sprayed, and secondary circulated sprinkling area (8) adopts the serosity in deutoplasm pond (4) to pass through tower ectoplasm
Liquid circulating pump (5) is squeezed into spraying layer and is sprayed；Every layer of spraying layer is disposed with some nozzles, positioned at the tower wall of uptake zone periphery
The nozzle angle of surrounding adopts 90 °, and the nozzle angle positioned at other regions adopts 90 °, 120 ° or Bidirectional nozzle, the atomization of nozzle
Coverage rate is not less than 300%；Major cycle spray area (11) and secondary circulated sprinkling area (8) are all using top setting spraying layer, bottom
One layer of flue gas of setting strengthens the structure of mass transfer elements；Major cycle spray area (11) and secondary circulated sprinkling area in described absorption tower
(8) it is respectively provided with one layer of airflow uniform distribution component；Main stock tank (2) the configuration oxidation air system of main absorption tower (1) bottom.
2. single column Two-way Cycle high-efficiency desulfurization process system according to claim 1 it is characterised in that：Main absorption tower (1) is adopted
With circular or square；Deutoplasm pond (4) adopts circular, square or xoncrete structure pattern.
3. single column Two-way Cycle high-efficiency desulfurization process system according to claim 1 it is characterised in that：Main stock tank (2) adopts
Side stir device；Deutoplasm pond (4) adopts side stir device or inputting type agitator.
4. single column Two-way Cycle high-efficiency desulfurization process system according to claim 1 it is characterised in that：Airflow uniform distribution plate adopts
Porous media form, for circular or square hole.
5. single column Two-way Cycle high-efficiency desulfurization process system according to claim 1 it is characterised in that：Major cycle sprays area
Or secondary circulated sprinkling area (8) is all at least provided with ground floor spraying layer, top setting two-layer of ground floor spraying layer or more (11)
Spraying layer.
6. single column Two-way Cycle high-efficiency desulfurization process system according to claim 1 it is characterised in that：Major cycle spray area sets
Put 2～3 layers of spraying layer, secondary spray area arranges 1～2 floor spraying layer.
7. single column Two-way Cycle high-efficiency desulfurization process system according to claim 1 it is characterised in that：Major-minor circulated sprinkling area
(11) the corresponding slurry circulating pump of every layer of spraying layer or two slurry circulating pumps.
8. single column Two-way Cycle high-efficiency desulfurization process system according to claim 1 it is characterised in that：Oxidation air system is adopted
With oxidation air spray gun (15) or using oxidation air ductwork type.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620950783.4U CN205988671U (en) | 2016-08-26 | 2016-08-26 | A kind of single column Two-way Cycle high-efficiency desulfurization process system |
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| CN201620950783.4U CN205988671U (en) | 2016-08-26 | 2016-08-26 | A kind of single column Two-way Cycle high-efficiency desulfurization process system |
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| CN205988671U true CN205988671U (en) | 2017-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422735A (en) * | 2016-08-26 | 2017-02-22 | 浙江天地环保科技有限公司 | Single-column dual-cycle efficient desulfurization process system and method |
-
2016
- 2016-08-26 CN CN201620950783.4U patent/CN205988671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422735A (en) * | 2016-08-26 | 2017-02-22 | 浙江天地环保科技有限公司 | Single-column dual-cycle efficient desulfurization process system and method |
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Address after: Hangzhou City, Zhejiang province 310012 Huaxing Road No. 99 (Hangzhou Neusoft business building) Patentee after: Zhejiang Tiandi Environmental Protection Technology Co., Ltd Address before: Hangzhou City, Zhejiang province 310012 Huaxing Road No. 99 (Hangzhou Neusoft business building) Patentee before: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |