CN210752016U - Combined wet flue gas desulfurization system device - Google Patents
Combined wet flue gas desulfurization system device Download PDFInfo
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- CN210752016U CN210752016U CN201921670538.8U CN201921670538U CN210752016U CN 210752016 U CN210752016 U CN 210752016U CN 201921670538 U CN201921670538 U CN 201921670538U CN 210752016 U CN210752016 U CN 210752016U
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Abstract
The utility model discloses a modular wet flue gas desulfurization system device, including entry flue and absorption tower, the intercommunication is provided with the prewashing device on the entry flue, the intercommunication is provided with prewashing export flue on the prewashing device. The utility model discloses an impurity and harmful component in the flue gas are got rid of to the original flue gas of prewashing tower washing, make it not enter into hou mian desulfurization system, avoid the desulfurization accessory substance to receive the pollution, ensure the accessory substance like gypsum, zinc sulfate and sulphur etc, obtain reliable comprehensive utilization, realize circular economy's purpose, the wet flue gas that reaches the saturated condition is when getting into the injection pipe in the injection absorption tower, can effectively prevent the orificial scale deposit of injection pipe and jam, thereby ensure desulfurization system's continuous operation, through multilayer liquid stream baffle, the dwell time of bubble in the liquid phase district has been prolonged, thereby improve desulfurization efficiency, flue gas dewatering device sets up on the prewashing device, the floor area has been reduced, make desulfurization system's price/performance ratio improve greatly.
Description
Technical Field
The utility model relates to a combined wet flue gas desulfurization system device. In particular to a flue gas desulfurization system with the functions of removing impurities from flue gas, high-efficiency desulfurization and high-quality desulfurization by-products.
Background
When the industrial boiler or furnace adopts coal as fuel to burn, a large amount of sulfur dioxide and nitrogen oxide are contained in discharged flue gas, if the flue gas is directly discharged into the air, environmental pollution can be caused, a desulfurization device is required to be adopted to desulfurize the flue gas and then discharge the flue gas after reaching the standard, a jet bubbling reactor is one of the technologies of wet flue gas desulfurization, the jet bubbling reactor has the technical and economic characteristics of lower investment cost, high desulfurization efficiency, strong adaptability to load change and lower operating cost, and is currently popularized and applied.
However, in actual operation, there are several problems as follows. Firstly, the nozzle of the injection pipe is easy to be scaled and blocked, so that the system resistance is increased and the continuous operation is influenced; secondly, the requirement on the impurity content of the desulfurization by-product is high and cannot be met; thirdly, when the content of sulfur dioxide is very high, the requirement of high desulfurization efficiency cannot be met; fourthly, the flue gas dehydration device is arranged externally, so that the occupied area is large.
Due to the problems, the popularization and application fields of the method are limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a combined wet flue gas desulfurization system device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a combined wet flue gas desulfurization system device comprises an inlet flue and an absorption tower, wherein a prewashing device is communicated and arranged on the inlet flue, the prewashing device is communicated with a prewashing outlet flue which is communicated with a jet absorption tower, an airflow distribution chamber is arranged in the absorption tower, the jet absorption tower is communicated with the airflow distribution chamber, the airflow distribution chamber is communicated with a plurality of injection pipes which are fixedly connected with liquid flow baffles, the liquid flow baffle is fixedly connected with an air flow ascending pipe which is communicated with an air flow collecting chamber, an absorbing tower outlet flue is arranged in the absorbing tower, the airflow collecting chamber is communicated with the absorbing tower outlet flue, and a flue gas dehydration device is communicated with the outlet flue of the absorption tower, and an outlet chimney is communicated with the flue gas dehydration device.
Preferably, the prewashing device is communicated with the jet absorption tower through a prewashing outlet flue.
Preferably, the jet absorption tower is communicated with the flue gas dehydration device through an outlet flue of the absorption tower.
Preferably, the flue gas dewatering device is arranged above the prewashing device.
Preferably, the liquid flow baffle is disposed outwardly of the ejector tube.
Compared with the prior art, the utility model, its beneficial effect does:
1. the original flue gas is firstly washed by a prewashing tower, so that impurities and harmful components such as hydrogen chloride, hydrogen fluoride, zinc oxide, dust and the like in the flue gas can be removed, the flue gas does not enter a rear desulphurization system, desulphurization byproducts are prevented from being polluted, byproducts such as gypsum, zinc sulfate, sulfur and the like are ensured, reliable comprehensive utilization is obtained, and the aim of circular economy is fulfilled.
2. When wet flue gas reaching a saturated state enters the injection pipe in the injection absorption tower, the scaling and blockage at the pipe orifice of the injection pipe can be effectively prevented, so that the continuous operation of a desulfurization system is ensured.
3. After the flue gas enters the bubbling reaction zone, under the condition of not increasing liquid layer resistance, a plurality of layers of liquid flow baffles are additionally arranged outside the injection pipe, so that the retention time of bubbles in a liquid phase zone is prolonged, the aim of improving the desulfurization efficiency is fulfilled, and the desulfurization efficiency can reach 99.5 percent under the condition of the flue gas of high-concentration sulfur dioxide.
4. The flue gas dewatering device is arranged on the prewashing device, so that the occupied area is reduced, the cost performance of the desulfurization system is greatly improved, and the flexibility of system design is increased.
Drawings
FIG. 1 is a schematic structural diagram of a combined wet flue gas desulfurization system device provided by the present invention;
in the figure: 1 inlet flue, 2 prewashing device, 3 prewashing outlet flue, 4 spraying absorption tower, 5 airflow distribution chamber, 6 spraying pipe, 7 liquid flow baffle, 8 airflow ascending pipe, 9 airflow collecting chamber, 10 absorption tower outlet flue, 11 flue gas dehydration device and 12 outlet chimney.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, a modular wet flue gas desulfurization system device, including entry flue 1 and absorption tower, the intercommunication is provided with prewashing device 2 on the entry flue 1, prewashing device 2 is used for using the leading-in original flue gas of washing liquid washing entry flue 1, the intercommunication is provided with prewashing export flue 3 on the prewashing device 2, the intercommunication is provided with on the prewashing export flue 3 and sprays absorption tower 4, prewashing device 2 sets up with spraying absorption tower 4 through prewashing export flue 3, it sets up with 11 intercommunications of flue gas dewatering device through absorption tower export flue 10 to spray absorption tower 4.
An air flow distribution chamber 5 is arranged in the absorption tower, an injection absorption tower 4 is communicated with the air flow distribution chamber 5, a plurality of injection pipes 6 are communicated with the air flow distribution chamber 5, a liquid flow baffle 7 is arranged on the outer side wall of each injection pipe 6, liquid flow baffles 7 are fixedly connected on the plurality of injection pipes 6, the liquid flow baffles 7 can prolong the retention time of bubbles in a liquid phase region, so that the aim of improving the desulfurization efficiency is fulfilled, an air flow ascending pipe 8 is fixedly connected on each liquid flow baffle 7, an air flow collecting chamber 9 is communicated with the air flow ascending pipe 8, an absorption tower outlet flue 10 is arranged in the absorption tower, the air flow collecting chamber 9 is communicated with the absorption tower outlet flue 10, a flue gas dehydration device 11 is communicated with the absorption tower outlet flue 10, the flue gas dehydration device 11 is arranged above the prewashing device 2, and the flue gas dehydration device 11 is arranged above the prewashing device 2, so that, the cost performance of the desulfurization system is greatly improved, the flexibility of the system design is increased, and the flue gas dehydration device 11 is communicated with the outlet chimney 12.
In the utility model, the original flue gas enters the prewashing device 2 from the inlet flue 1 and is washed by the washing liquid, so that harmful components such as hydrogen chloride and dust in the flue gas are removed in advance, and meanwhile, the flue gas is cooled and humidified to reach the state of saturated wet flue gas; then wet flue gas enters an airflow distribution chamber 5 in an injection absorption tower 4 through a prewashing outlet flue 3, the flue gas in the airflow distribution chamber 5 is uniformly distributed into an injection pipe 6 and is flushed into absorption liquid from top to bottom for carrying out bubbling reaction; then the small bubbles dispersed by the liquid phase overflow from the liquid level under the guidance of the liquid flow baffle 7, so that the harmful gas of sulfur dioxide is removed; finally, the flue gas enters an airflow collecting chamber 9 through an airflow ascending pipe 8, then enters a flue gas dehydration device 11 through an outlet flue 10 of the absorption tower, and the purified flue gas after dehydration is discharged through an outlet chimney 12.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A combined wet flue gas desulfurization system device comprises an inlet flue (1) and an absorption tower, and is characterized in that the inlet flue (1) is communicated with and provided with a prewashing device (2), the prewashing device (2) is communicated with and provided with a prewashing outlet flue (3), the prewashing outlet flue (3) is communicated with and provided with an injection absorption tower (4), an air flow distribution chamber (5) is arranged in the absorption tower, the injection absorption tower (4) is communicated with the air flow distribution chamber (5), the air flow distribution chamber (5) is communicated with and provided with a plurality of injection pipes (6), the injection pipes (6) are fixedly connected with a liquid flow baffle plate (7), the liquid flow baffle plate (7) is fixedly connected with an air flow ascending pipe (8), the air flow ascending pipe (8) is communicated with and provided with an air flow collecting chamber (9), and an absorption tower flue outlet (10) is arranged in the absorption tower, the gas flow collecting chamber (9) is communicated with an outlet flue (10) of the absorption tower, a flue gas dehydration device (11) is communicated with the outlet flue (10) of the absorption tower, and an outlet chimney (12) is communicated with the flue gas dehydration device (11).
2. The combined wet flue gas desulfurization system device according to claim 1, wherein the prewashing device (2) is communicated with the spray absorption tower (4) through a prewashing outlet flue (3).
3. The combined wet flue gas desulfurization system device according to claim 1, wherein the spray absorption tower (4) is communicated with the flue gas dehydration device (11) through an absorption tower outlet flue (10).
4. The combined wet flue gas desulfurization system device according to claim 1, wherein the flue gas dehydration device (11) is disposed above the prewashing device (2).
5. The combined wet flue gas desulfurization system device according to claim 1, wherein the liquid flow baffle (7) is disposed on the outer sidewall of the injection pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921670538.8U CN210752016U (en) | 2019-10-08 | 2019-10-08 | Combined wet flue gas desulfurization system device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921670538.8U CN210752016U (en) | 2019-10-08 | 2019-10-08 | Combined wet flue gas desulfurization system device |
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| CN210752016U true CN210752016U (en) | 2020-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797408A (en) * | 2022-04-08 | 2022-07-29 | 王晓曼 | Steel-making furnace with high-efficiency waste gas treatment |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797408A (en) * | 2022-04-08 | 2022-07-29 | 王晓曼 | Steel-making furnace with high-efficiency waste gas treatment |
| CN114797408B (en) * | 2022-04-08 | 2024-01-12 | 重庆金凯特殊钢制品有限公司 | Steelmaking furnace is handled to waste gas high efficiency |
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