CN210473577U - Device for removing sulfur trioxide from flue gas by using basic group - Google Patents
Device for removing sulfur trioxide from flue gas by using basic group Download PDFInfo
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- CN210473577U CN210473577U CN201921075986.3U CN201921075986U CN210473577U CN 210473577 U CN210473577 U CN 210473577U CN 201921075986 U CN201921075986 U CN 201921075986U CN 210473577 U CN210473577 U CN 210473577U
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Abstract
The utility model provides a sulfur trioxide's of basic group desorption flue gas device, includes alkali pond, pump, compressed air supply unit, at least one two-fluid spray gun, at least one shower nozzle, basic storehouse and dilution pond, alkali pond discharge gate with the input port connection of pump, the delivery outlet in basic storehouse and dilution pond respectively with the different input port connection in alkali pond, the alkali pond is equipped with the agitator, the pump export with a two-fluid spray gun input port connection, the delivery outlet of compressed air supply unit with another input port connection of two-fluid spray gun, two-fluid spray gun delivery outlet and shower nozzle connection, the shower nozzle sets up in the flue. The output ports of the basic group bin and the dilution tank respectively enter the basic tank after passing through different adjusting devices, so that the alkali liquor with different concentrations can be conveniently prepared; the bases are conveyed to a double-fluid spray gun through a pump, compressed air is introduced into the other input port of the double-fluid spray gun, the bases are atomized by the double-fluid spray gun and then sprayed into flue gas, and the contact area between the atomized base droplets and the flue gas is increased.
Description
Technical Field
The utility model relates to an environmental protection technology field especially relates to a sulfur trioxide's of basic group desorption flue gas device.
Background
The fire coal contains a certain amount of sulfur, the fire coal generates flue gas in the combustion process, and the sulfur is oxidized into SO at high temperature2And SO3，SO3Although the amount is small, the method has great harm, not only poses potential threat to the normal and stable operation of the power station, but also pollutes the atmospheric environment and causes harm to human health.
In the existing sulfur removal device, bases are conveyed to a spray head through a pressure pump and sprayed into flue gas through the spray head, the sprayed bases are large in droplet size and small in contact surface with the flue gas, the pressure of a spray section flue is increased, and the discharge of the flue gas of an upstream flue is influenced.
Disclosure of Invention
The utility model aims to provide an efficient sulfur trioxide removing device from basic group flue gas.
The utility model provides a sulfur trioxide's of basic group desorption flue gas device, includes alkali pond, pump, compressed air supply unit, at least one two-fluid spray gun, at least one shower nozzle, basic storehouse and dilution pond, alkali pond discharge gate with the input port connection of pump, the delivery outlet in basic storehouse and dilution pond respectively with the different input port connection in alkali pond, the alkali pond is equipped with the agitator, the pump export with a two-fluid spray gun input port connection, the delivery outlet of compressed air supply unit with another input port connection of two-fluid spray gun, two-fluid spray gun delivery outlet and shower nozzle connection, the shower nozzle sets up in the flue.
Preferably, the base bin and the output port of the dilution tank are respectively provided with an adjusting device, and the adjusting device comprises an adjusting valve or a feeding controller.
Preferably, the inlet and/or the outlet of the two-fluid spray gun are/is provided with regulating valves.
Preferably, the spray head is arranged on the side wall of the flue.
Preferably, the two spray heads are respectively arranged at the opposite positions of the side wall of the flue.
Preferably, the spray head is arranged in the middle of the flue, and the spray direction of the spray head is the same as the flow direction of the flue gas.
Preferably, the spray head is a vortex spray head.
The utility model provides a sulfur trioxide's of basic group desorption flue gas device still includes the first spiral spoiler of the shower nozzle low reaches of installing in the flue.
The utility model provides a sulfur trioxide's of basic group desorption flue gas device still including installing the second spiral spoiler in first spiral spoiler low reaches, the spiral opposite direction of second spiral spoiler and first spiral spoiler.
The utility model has the advantages that: 1. the output ports of the basic group bin and the dilution tank respectively enter the basic tank after passing through different adjusting devices, so that the alkali liquor with different concentrations can be conveniently prepared; 2. the bases are conveyed to a double-fluid spray gun through a pump, compressed air is introduced into the other input port of the double-fluid spray gun, the bases are atomized by the double-fluid spray gun and then sprayed into flue gas, the contact area between the atomized base droplets and the flue gas is increased, and the sulfur trioxide removal efficiency is improved; 3. the spoiler enables the flue gas and the atomized basic groups to be fully mixed, and the reaction efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the basic group flue gas sulfur trioxide removal device described in example 1;
FIG. 2 is a schematic structural view of the base flue gas sulfur trioxide removal device described in embodiment 2.
The attached parts in the figure illustrate that: 1-alkali pool, 2-stirrer, 3-compressed air supply unit, 4-pump, 5-two-fluid spray gun, 51-spray head, 6-flue, 7-basic bin, 71-first regulating device, 8-dilution pool, 81-second regulating device, 9-spoiler, 91-first spoiler helix, 92-second spoiler helix.
Detailed Description
Example 1:
a device for removing sulfur trioxide from flue gas by using basic groups is shown in figure 1 and comprises an alkali pool 1, a pump 4, a compressed air supply unit 3, a two-fluid spray gun 5, a spray head 51, a basic group bin 7 and a dilution pool 8. The base bin 7 is used for storing bases with higher concentration, the diluting pool 8 is used for storing diluent for diluting the bases, the diluent can be water or bases with low concentration, the base pool is used for storing the bases with working concentration, the output ports of the base bin 7 and the diluting pool 8 are respectively connected with different input ports of the base pool 1, the output ports of the base bin 7 and the diluting pool 8 are respectively provided with adjusting devices 71 and 81, the base pool 1 is provided with a stirrer for preventing alkali crystallization and precipitation, the discharge port of the base pool 1 is connected with the input port of the pump 4, the output port of the pump 4 is connected with one input port of the two-fluid spray gun 5, the output port of the compressed air supply unit 3 is connected with the other input port of the two-fluid spray gun 5, the output port of the two-fluid spray gun 5 is connected with the. The two-fluid spray gun 5 and the spray head 51 may be one or more. First adjusting device 71 and second adjusting device 81 are used for adjusting basic group and diluent addition respectively, and basic group and diluent are exported in alkaline pond 1, the agitator accelerates basic group on the one hand and dissolves, prevents that the basic group crystallization from precipitating on the other hand, and basic group carries two fluid spray gun 5 through pump 4, and compressed air is let in to another input port of two fluid spray gun 5, and two fluid spray gun 5 sprays into flue 6 flue gas through shower nozzle 51 after atomizing basic group, and the area of contact of the basic group after the atomizing and flue gas increases, has improved sulfur trioxide's removal efficiency. The regulating devices 71, 81 can be regulating valves or feed controllers, preferably electronic feed controllers.
The number of the double-fluid spray guns 5 is generally one, the flue gas containing more sulfur trioxide is treated, and a plurality of double-fluid spray guns can be arranged to improve the atomization amount. The spray head 51 can be arranged in the middle of the flue, the spraying direction is the same as the flowing direction of the flue gas, the influence on the flowing of the flue gas is small due to the spraying mode, effective uniform mixing is lacked between the smoke, and the reaction time is short. The spraying flow of the output port of the double-fluid spray gun 5 is 2-80 liters per minute, and the input port and the output port of the double-fluid spray gun can be provided with regulating valves, so that the input flow of air and alkali and the spraying flow of mist can be regulated conveniently. The compressed air supply unit may be an air tank, an air compressor or a fan.
The base can be selected from one or mixture of ammonia water, sodium hydroxide, calcium oxide, calcium carbonate, sodium carbonate and sodium bicarbonate.
Example 2:
the difference from example 1 is: the spray head 51 is arranged on the side wall of the flue, as shown in fig. 2, an included angle is formed between the spray direction and the flue gas flowing direction, in the embodiment, 25 degrees, 45 degrees, 65 degrees, 115 degrees, 135 degrees or 155 degrees is adopted, the included angle range can be adjusted between 25 degrees to 65 degrees or 115 degrees and 155 degrees, and the included angle between the spray direction and the flue gas flowing direction enables the flue gas to change the original flowing direction, forms turbulence, enables the smoke to be mixed more uniformly, and enables the reaction to be more thorough. Preferably, the spray angle of the spray head 51 is adjusted to 45 degrees, so as to avoid directly spraying the fog drops on the side wall of the flue 6. The spray head 51 can be a vortex spray head, so that the spray head 51 is prevented from being blocked, and the spray force of the fog drops is improved. In this embodiment, the four nozzles 51 are divided into two groups, two nozzles of each group are disposed at opposite positions on the side wall of the flue 6, and the nozzles 51 of different groups are layered-installed on the side wall of the flue, so that the effect of smoke turbulence is improved, and the reaction efficiency is improved. The flue gas with more sulfur content can increase the number of the spray heads, and the spray heads are arranged in multiple layers.
The flue at the downstream of the nozzle 51 can also be provided with a first spiral spoiler 81, and the first spiral spoiler 81 changes the flow direction of the flue gas into a spiral shape, so that the effect of further uniformly mixing the smoke and the dust is achieved. The second spiral spoiler 82 can be further arranged on the downstream of the first spiral spoiler 81, the spiral directions of the first spiral spoiler 81 and the second spiral spoiler 82 are opposite, smoke, mist and dust are further uniformly mixed, and the efficiency of removing sulfur trioxide from the smoke of the basic group is improved.
The above description is only exemplary of the invention and should not be taken as limiting the invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the invention should be included in the protection scope of the invention.
Claims (9)
1. The utility model provides a sulfur trioxide's of basic group desorption flue gas device, includes alkali pond and pump, alkali pond discharge gate with the input port connection of pump, its characterized in that still includes compressed air supply unit, at least one two-fluid spray gun, at least one shower nozzle, basic storehouse and dilution pond, the delivery outlet in basic storehouse and dilution pond respectively with the different input port connection in alkali pond, the alkali pond is equipped with the agitator, the pump outlet with a two-fluid spray gun input port connection, the delivery outlet of compressed air supply unit with another input port connection in two-fluid spray gun, two-fluid spray gun delivery outlet and shower nozzle are connected, the shower nozzle sets up in the flue.
2. The device for removing sulfur trioxide from flue gas by using basic groups according to claim 1, wherein the basic group cabin and the output port of the dilution tank are respectively provided with an adjusting device, and the adjusting device comprises an adjusting valve or a feeding controller.
3. The device for basic removal of sulfur trioxide from flue gas according to claim 1, wherein the inlet and outlet of the two-fluid spray gun are provided with regulating valves.
4. The device for removing sulfur trioxide from flue gas by basic group according to claim 1, wherein the spray head is arranged on the side wall of the flue.
5. The device for basic removal of sulfur trioxide from flue gas according to claim 4, wherein two said nozzles are respectively disposed at opposite positions on the side wall of the flue.
6. The device for removing sulfur trioxide from flue gas by using basic groups according to claim 1, wherein the spray head is arranged in the middle of the flue, and the spray direction of the spray head is the same as the flow direction of the flue gas.
7. The device for removing sulfur trioxide from flue gas by using basic groups according to any one of claims 1 to 6, wherein the spray head is a vortex spray head.
8. The device for base removal of sulfur trioxide in flue gas according to any one of claims 1 to 6, further comprising a first spiral spoiler installed downstream of the spray head in the flue.
9. The device for basic removal of sulfur trioxide from flue gas according to claim 8, further comprising a second spiral spoiler installed downstream of the first spiral spoiler, wherein the second spiral spoiler is opposite to the spiral direction of the first spiral spoiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075986.3U CN210473577U (en) | 2019-07-11 | 2019-07-11 | Device for removing sulfur trioxide from flue gas by using basic group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075986.3U CN210473577U (en) | 2019-07-11 | 2019-07-11 | Device for removing sulfur trioxide from flue gas by using basic group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210473577U true CN210473577U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921075986.3U Active CN210473577U (en) | 2019-07-11 | 2019-07-11 | Device for removing sulfur trioxide from flue gas by using basic group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210473577U (en) |
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2019
- 2019-07-11 CN CN201921075986.3U patent/CN210473577U/en active Active
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