CN215742850U - SDS desulphurization device for low-temperature flue gas - Google Patents
SDS desulphurization device for low-temperature flue gas Download PDFInfo
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- CN215742850U CN215742850U CN202120500630.0U CN202120500630U CN215742850U CN 215742850 U CN215742850 U CN 215742850U CN 202120500630 U CN202120500630 U CN 202120500630U CN 215742850 U CN215742850 U CN 215742850U
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Abstract
The utility model provides an SDS (sodium dodecyl sulfate) desulfurization device for low-temperature flue gas, which comprises a storage bin, a grinding device, a heating decomposition device, an original flue, a desulfurization reactor tower, a bag-type dust remover and a chimney, wherein the original flue, the desulfurization reactor tower, the bag-type dust remover and the chimney are sequentially arranged along a flue gas treatment direction, the storage bin is used for storing a desulfurizing agent, a discharge port of the storage bin is connected with a feed port of the grinding device, a discharge port of the grinding device is connected with the heating decomposition device which is used for decomposing the desulfurizing agent, an output end of the heating decomposition device is connected to the desulfurization reactor tower, an outlet of the desulfurization reactor tower is connected with the bag-type dust remover, the desulfurized flue gas is dedusted by the bag-type dust remover, an outlet of the bag-type dust remover is connected with the chimney, the desulfurized and dedusted clean flue gas is discharged to the atmosphere by the chimney, and the device can realize the rapid decomposition of sodium bicarbonate, to improve the desulfurization efficiency.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of flue gas desulfurization, in particular to an SDS (sodium dodecyl sulfate) desulfurization device for low-temperature flue gas.
[ background of the utility model ]
Sodium bicarbonate is ground by a grinding device to reach a certain mesh number and then is sprayed into a desulfurizing tower by a spraying system, and the sodium bicarbonate is rapidly decomposed into sodium carbonate and SO by utilizing the temperature of flue gas higher than 150 DEG C2The reaction is carried out to achieve the aim of desulfurization. However, when the flue gas temperature is too low, especially lower than 150 ℃, sodium bicarbonate cannot be rapidly decomposed into sodium carbonate, which affects the desulfurization efficiency, and a SDS desulfurization device for low-temperature flue gas is proposed.
[ Utility model ] content
The utility model aims to solve the problems in the prior art and provides an SDS (sodium dodecyl sulfate) desulfurization device for low-temperature flue gas, which can realize the rapid decomposition of sodium bicarbonate so as to improve the desulfurization efficiency of the low-temperature flue gas.
In order to achieve the purpose, the utility model provides an SDS (sodium dodecyl sulfate) desulfurization device for low-temperature flue gas, which comprises a storage bin, a grinding device, a heating decomposition device, an original flue, a desulfurization reactor tower, a bag-type dust remover and a chimney, wherein the original flue, the desulfurization reactor tower, the bag-type dust remover and the chimney are sequentially arranged along a flue gas treatment direction, the storage bin is used for storing a desulfurizer, a discharge hole of the storage bin is connected with a feed inlet of the grinding device, a discharge hole of the grinding device is connected with the heating decomposition device, the heating decomposition device is used for decomposing the desulfurizer, an output end of the heating decomposition device is connected into the desulfurization reactor tower, an outlet of the desulfurization reactor tower is connected with the bag-type dust remover, the desulfurized flue gas is dedusted by the bag-type dust remover, an outlet of the bag-type dust remover is connected with the chimney, and the desulfurized and dedusted clean flue gas is discharged to the atmosphere by the chimney.
Preferably, the desulfurizing agent is sodium bicarbonate.
Preferably, the thermal decomposition device heats the raw material by electric heating to decompose sodium bicarbonate into sodium carbonate.
Preferably, the heating decomposition device heats the raw material to 170-200 ℃.
Preferably, the bottom of the stock bin is provided with a variable-frequency quantitative feeder, and the raw materials are conveyed to the grinding device through the variable-frequency quantitative feeder.
Preferably, the output end of the heating decomposition device is connected with a conveying fan, and sodium carbonate is sprayed into the desulfurization reactor tower by the conveying fan.
Preferably, the output end of the conveying fan sprays sodium carbonate into the desulfurization reactor tower through a spraying pipe, the angle of the spraying pipe for spraying the sodium carbonate into the desulfurization reactor tower is 90 degrees vertical to the tower wall, and the width of the spraying pipe extending into the desulfurization reactor tower is 1/3 of the inner diameter of the reactor tower.
The utility model has the beneficial effects that: according to the utility model, sodium bicarbonate particles are ground to a certain mesh number and then sent into a heating decomposition device, the temperature is increased to 170-200 ℃ by adopting electric heating, so that the sodium bicarbonate is rapidly decomposed into sodium carbonate, and the sodium carbonate is sprayed into a desulfurization reaction tower by a delivery blower for reaction, thereby ensuring the desulfurization efficiency when the temperature of flue gas is low.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of an SDS desulfurization device for low-temperature flue gas according to the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the SDS desulfurization device for low-temperature flue gas of the present invention comprises a storage bin 1, a grinding device 2, a pyrolysis decomposition device 3, a raw flue 4, a desulfurization reactor tower 5, a bag-type dust remover 6, and a chimney 7, wherein the raw flue 4, the desulfurization reactor tower 5, the bag-type dust remover 6, and the chimney 7 are sequentially disposed along a flue gas treatment direction, the storage bin 1 is used for storing a desulfurizing agent, a discharge port of the storage bin 1 is connected to a feed port of the grinding device 2, a discharge port of the grinding device 2 is connected to the pyrolysis decomposition device 3, the pyrolysis decomposition device 3 is used for decomposing the desulfurizing agent, an output end of the pyrolysis decomposition device 3 is connected to the desulfurization reactor tower 5, an outlet of the desulfurization reactor tower 5 is connected to the bag-type dust remover 6, the desulfurized flue gas is dedusted by the bag-type dust remover 6, an outlet of the bag-type dust remover 6 is connected to the chimney 7, and is desulfurized by the desulfurization decomposition device, The clean flue gas after dust removal is discharged to the atmosphere through a chimney 7.
Further, the desulfurizing agent is sodium bicarbonate.
Further, the thermal decomposition device 3 heats the raw material by electric heating to decompose sodium bicarbonate into sodium carbonate.
Further, the heating decomposition device 3 heats the raw materials to 170-200 ℃.
Further, the bottom of the stock bin 1 is provided with a variable frequency constant feeder, and the raw materials are conveyed to the grinding device 2 through the variable frequency constant feeder.
Further, the output end of the heating decomposition device 3 is connected with a conveying fan, and sodium carbonate is sprayed into the desulfurization reactor tower 5 by the conveying fan.
Further, the output end of the conveying fan sprays sodium carbonate into the desulfurization reactor tower 5 through an injection pipe, the angle of the sodium carbonate sprayed into the desulfurization reactor tower 5 by the injection pipe is 90 degrees vertical to the tower wall, and the sodium carbonate extends into the desulfurization reactor tower 5 and is 1/3 with the width being the inner diameter of the reactor tower 5.
Furthermore, the discharge particle size of the grinding device 2 is D90 < 20 um.
The working process of the utility model is as follows:
the utility model relates to an SDS (sodium dodecyl sulfate) desulfurization device for low-temperature flue gas, which is characterized in that during operation, sodium bicarbonate is ground to a certain mesh number through a grinding device 2 and then is sent into a heating decomposition device 3 through a variable-frequency quantitative feeder at the lower part of a bin 1, the heating decomposition device 3 is electrically heated to 170-200 ℃ so that the sodium bicarbonate is rapidly decomposed into sodium carbonate, the sodium carbonate is sprayed into a desulfurization reactor tower 5 through a conveying fan and reacts with flue gas from an original flue 4 to remove sulfur dioxide, generated products are collected by a bag-type dust collector 6, and clean flue gas is conveyed into a chimney 7 through a draught fan to be discharged.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a SDS desulphurization unit for low temperature flue gas which characterized in that: comprises a feed bin (1), a grinding device (2), a heating decomposition device (3), an original flue (4), a desulfurization reactor tower (5), a bag-type dust remover (6) and a chimney (7), wherein the original flue (4), the desulfurization reactor tower (5), the bag-type dust remover (6) and the chimney (7) are sequentially arranged along the flue gas treatment direction, the feed bin (1) is used for storing a desulfurizing agent, a discharge port of the feed bin (1) is connected with a feed inlet of the grinding device (2), a discharge port of the grinding device (2) is connected with the heating decomposition device (3), the heating decomposition device (3) is used for decomposing the desulfurizing agent, an output end of the heating decomposition device (3) is connected into the desulfurization reactor tower (5), an outlet of the desulfurization reactor tower (5) is connected with the bag-type dust remover (6), and flue gas after desulfurization is dedusted by the bag-type dust remover (6), the outlet of the bag-type dust collector (6) is connected with a chimney (7), and the purified flue gas after desulfurization and dust removal is discharged to the atmosphere from the chimney (7).
2. The SDS desulfurization device for low temperature flue gas of claim 1, wherein: the desulfurizer is sodium bicarbonate.
3. The SDS desulfurization device for low temperature flue gas of claim 2, wherein: the heating decomposition device (3) adopts electric heating to heat the raw materials, so that the sodium bicarbonate is decomposed into sodium carbonate.
4. The SDS desulfurization device for low-temperature flue gas according to claim 3, characterized in that: the heating decomposition device (3) heats the raw materials to 170-200 ℃.
5. The SDS desulfurization apparatus for low-temperature flue gas according to any one of claims 2 to 4, wherein: the bottom of feed bin (1) is equipped with frequency conversion constant feeder, carries raw materials to grinder (2) through frequency conversion constant feeder.
6. The SDS desulfurization device for low-temperature flue gas according to claim 5, characterized in that: the output end of the heating decomposition device (3) is connected with a conveying fan, sodium carbonate is sprayed into the desulfurization reactor tower (5) by the conveying fan,
7. the SDS desulfurization device for low-temperature flue gas according to claim 6, characterized in that: the output end of the conveying fan sprays sodium carbonate into the desulfurization reactor tower (5) through the injection pipe, the angle of the sodium carbonate sprayed into the desulfurization reactor tower (5) by the injection pipe is 90 degrees vertical to the tower wall, and the width extending into the desulfurization reactor tower (5) is 1/3 of the inner diameter of the reactor tower (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120500630.0U CN215742850U (en) | 2021-03-09 | 2021-03-09 | SDS desulphurization device for low-temperature flue gas |
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| CN202120500630.0U CN215742850U (en) | 2021-03-09 | 2021-03-09 | SDS desulphurization device for low-temperature flue gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115999356A (en) * | 2023-01-06 | 2023-04-25 | 北京禹泰环保工程有限公司 | SDS desulfurization control system and desulfurization process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115999356A (en) * | 2023-01-06 | 2023-04-25 | 北京禹泰环保工程有限公司 | SDS desulfurization control system and desulfurization process |
| CN115999356B (en) * | 2023-01-06 | 2023-06-27 | 北京禹泰环保工程有限公司 | SDS desulfurization control system and desulfurization process |
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