CN202021008U - Wet flue gas desulfurization double-tower joint treatment device with cyclone station - Google Patents
Wet flue gas desulfurization double-tower joint treatment device with cyclone station Download PDFInfo
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- CN202021008U CN202021008U CN2011200056850U CN201120005685U CN202021008U CN 202021008 U CN202021008 U CN 202021008U CN 2011200056850 U CN2011200056850 U CN 2011200056850U CN 201120005685 U CN201120005685 U CN 201120005685U CN 202021008 U CN202021008 U CN 202021008U
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- tower
- flue gas
- treatment device
- underflow
- desulfurizing
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Abstract
The utility model discloses a wet flue gas desulfurization double-tower joint treatment device with a cyclone station. The wet flue gas desulfurization double-tower joint treatment device comprises a prewashing tower, a desulfurizing tower, the special cyclone station for adjusting the density of the desulfurizing tower, a transfer bump and an underflow outlet pipe, wherein a flue gas outlet at the top of the prewashing tower is communicated with a flue gas inlet of the desulfurizing tower; a lower seriflux outlet in the desulfurizing tower is connected into the cyclone station through the transfer pump; and an underflow outlet at the lower end of the cyclone station is connected with an underflow inlet of the desulfurizing tower through the underflow outlet pipe. The utility model provides the wet flue gas desulfurization double-tower joint treatment device with the special cyclone station, which can be used for modifying the conventional desulfurizing equipment and also can be used for new desulfurizing equipment. The wet flue gas desulfurization double-tower joint treatment device can adapt to the requirements of different coal properties and has the characteristics of low investment, small volume of work, high degree of automation, convenience in adjustment and running stability.
Description
Technical field
The present invention relates to the heat-engine plant wet flue gas desulfurization technique in energy environment protection field, is a kind of wet process of FGD double tower combined apparatus with special-purpose rotational flow station, belongs to the electric power factory equipment technical field.
Background technology
In flue gas desulfurization technique, limestone-gypsum wet process of FGD technology is most widely used a kind of technology.In recent years, along with the raising gradually of environmental requirement, in order to reduce SO in the power-plant flue gas
2Discharge capacity, many power plant transform existing limestone-gypsum wet flue gas desulfurizer.Wherein the modification scheme to the absorption tower roughly divides three kinds:
One, existing absorption tower body is transformed, increased or overstriking;
Two, increase new absorption tower, with the flue gas reasonable distribution, respectively simultaneously by former absorption tower and new absorption tower, promptly so-called absorption tower in parallel;
Three, increase new absorption tower as the prewashing tower, flue gas is crossed the prewashing tower earlier, again through the absorption tower, carries out twice washing, promptly so-called series connection absorption tower;
In the scheme on the third series connection absorption tower, there is a problem.For the water balance on absorption tower, the channel of water inlet mainly is lime stone slurry band water and demister flushing water, and the channel of draining mainly contains the water that smoke evaporative falls and the gypsum slurries band water of discharge.Flue gas at first passes through the prewashing tower in the scheme of series connection absorption tower, and after slurries fully contacted, the steam of flue gas the inside reached capacity.After entering the absorption tower again, flue gas does not have the ability of evaporation water substantially, in order to keep the water balance on absorption tower, must strengthen the discharge capacity of gypsum slurries.Gypsum slurries has been taken unnecessary water out of, has also taken lime stone, gypsum and other solid composition out of simultaneously, causes the absorption tower serum density to descend, and can't normally move.
Summary of the invention
For solving the problem that exists in the such scheme, the purpose of this invention is to provide a kind of wet process of FGD double tower combined apparatus with the special-purpose rotational flow station of absorption tower Auto-regulating System of Density of Heavy Medium.
In order to reach the foregoing invention purpose, technical scheme of the present invention realizes as follows:
A kind of wet process of FGD double tower combined apparatus with the special-purpose rotational flow station of absorption tower Auto-regulating System of Density of Heavy Medium, it is characterized in that: comprise prewashing tower, desulfurizing tower, the special-purpose rotational flow station of desulfurizing tower Auto-regulating System of Density of Heavy Medium, transhipment pump, underflow fairlead, the exhanst gas outlet of described prewashing top of tower is communicated with the smoke inlet of desulfurizing tower, bottom slurries outlet in the described desulfurizing tower is connected in the described rotational flow station by the transhipment pump, and the outlet of the underflow of the lower end of described rotational flow station is connected with the underflow inlet of described desulfurizing tower by the underflow fairlead.
With the wet process of FGD double tower combined apparatus of special-purpose rotational flow station, it comprises the prewashing tower, the absorption tower, and fairlead and underflow fairlead are flowed in the rotational flow station, transhipment pump, the top that are used for the absorption tower Auto-regulating System of Density of Heavy Medium.Its design feature is, prewashing tower and absorption tower all are provided with spray equipment, and flue gas at first passes through the prewashing tower, carries out the washing first time with the slurries counter current contacting, carries out emptying after the secondary washing through the absorption tower again.Normally discharge outside the gypsum slurries on the absorption tower, also has the part slurries to enter the special-purpose rotational flow station of Auto-regulating System of Density of Heavy Medium by the transhipment pump.Slurries are through behind the eddy flow, and underflow flows back to the absorption tower, and overflow enters other desulphurization plant.
The present invention adopts said structure, treating capacity by the control rotational flow station is regulated absorption tower density, can satisfy the absorption tower design load 30%～180% between change, handle the flue gas of different sulfur content, variation to ature of coal has splendid adaptive capacity, guarantees the stable operation of system.The present invention is not only applicable to the transformation to the existing flue gas desulfur device of excuting a law, and is applicable to newly-built desulfurizer.But the desulfurization amount of this device reasonable distribution I and II tower has the advantages that investment is little, quantities is little, automaticity is high, easy to adjust, stable.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is apparatus of the present invention structural representations.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
Referring to Fig. 1, the present invention includes prewashing tower 1, desulfurizing tower 2, the special-purpose rotational flow station 3 of desulfurizing tower Auto-regulating System of Density of Heavy Medium, transhipment pump 4, underflow fairlead 5, top stream fairlead 6.Flue gas at first enters prewashing tower 1, carries out the washing first time, after discharging from the prewashing top of tower, introduces desulfurizing tower 2 again, emptying after the secondary washing.Slurries in the partial desulfurization tower 2 are introduced rotational flow station 3 by transhipment pump 4, and behind the rotational flow station eddy flow, other desulphurization plant is introduced in overflow, and underflow is introduced desulfurizing tower 2.
Claims (1)
1. wet process of FGD double tower combined apparatus with rotational flow station, it is characterized in that: comprise prewashing tower (1), desulfurizing tower (2), the special-purpose rotational flow station (3) of desulfurizing tower Auto-regulating System of Density of Heavy Medium, transhipment pump (4), underflow fairlead (5), the exhanst gas outlet at described prewashing tower (1) top is communicated with the smoke inlet of desulfurizing tower (2), bottom slurries outlet in the described desulfurizing tower (2) is connected in the described rotational flow station (3) by transhipment pump (4), and the outlet of the underflow of the lower end of described rotational flow station (3) is connected with the underflow inlet of described desulfurizing tower (2) by underflow fairlead (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200056850U CN202021008U (en) | 2011-01-11 | 2011-01-11 | Wet flue gas desulfurization double-tower joint treatment device with cyclone station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200056850U CN202021008U (en) | 2011-01-11 | 2011-01-11 | Wet flue gas desulfurization double-tower joint treatment device with cyclone station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202021008U true CN202021008U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200056850U Expired - Fee Related CN202021008U (en) | 2011-01-11 | 2011-01-11 | Wet flue gas desulfurization double-tower joint treatment device with cyclone station |
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| CN (1) | CN202021008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068899A (en) * | 2011-01-11 | 2011-05-25 | 中环（中国）工程有限公司 | Wet method flue gas desulfurization double-tower combined treatment device with cyclone station |
-
2011
- 2011-01-11 CN CN2011200056850U patent/CN202021008U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068899A (en) * | 2011-01-11 | 2011-05-25 | 中环（中国）工程有限公司 | Wet method flue gas desulfurization double-tower combined treatment device with cyclone station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20160111 |