CN212548975U - Flue gas desulfurization denitration washing system - Google Patents
Flue gas desulfurization denitration washing system Download PDFInfo
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- CN212548975U CN212548975U CN202023123924.0U CN202023123924U CN212548975U CN 212548975 U CN212548975 U CN 212548975U CN 202023123924 U CN202023123924 U CN 202023123924U CN 212548975 U CN212548975 U CN 212548975U
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Abstract
The utility model discloses a flue gas desulfurization, denitrification and washing system, which comprises an air inlet pipe, a heat exchanger, a filter box, a first mixing box, a first spray tower, a second mixing box, a second spray tower and a gas adsorption box which are connected in sequence, wherein the adjacent heat exchanger, the filter box, the first mixing box, the first spray tower, the second mixing box, the second spray tower and the gas adsorption box are communicated with each other, a first filter plate and a second filter plate are arranged inside the filter box, a first spray mechanism, a first mixing mechanism and a second spray mechanism are arranged inside the first spray tower, a third spray mechanism, a second mixing mechanism and a fourth spray mechanism are arranged inside the second spray tower, the first spray tower and the second spray tower are respectively communicated with the third mixing box, a third connecting pipe, a filter device, a fourth connecting pipe and a cooling crystallization device are connected in sequence, can effectively treat the dust carried in the flue gas, has good flue gas purification effect and produces less solid waste.
Description
Technical Field
The utility model relates to a SOx/NOx control technical field especially relates to a flue gas SOx/NOx control washing system.
Background
The nitrogen oxide and the sulfur oxide are one of the main sources of air pollution, the untreated flue gas can seriously harm the health of people if being directly discharged into the atmosphere, and the ecological environment is damaged, and the flue gas desulfurization and denitrification washing system is a purification technology for treating the nitrogen oxide and the sulfur oxide.
The existing desulfurization and denitrification devices have many defects, such as poor desulfurization and denitrification effects and more solid wastes generated in the treatment process.
SUMMERY OF THE UTILITY MODEL
To the not enough of background art, the utility model provides a flue gas desulfurization denitration washing system can carry out effective treatment to the dust that carries in the flue gas to flue gas purification is effectual, and the solid useless of production is few.
In order to achieve the above object, the present invention provides the following technical solutions: a flue gas desulfurization and denitrification washing system comprises an air inlet pipe, a heat exchanger, a filter box, a first mixing box, a first spray tower, a second mixing box, a second spray tower and a gas adsorption box which are connected in sequence, wherein the adjacent heat exchanger, the filter box, the first mixing box, the first spray tower, the second mixing box, the second spray tower and the gas adsorption box are communicated with each other, the first mixing box is communicated with a first ozone generator, and the second mixing box is communicated with a second ozone generator;
a first filter plate and a second filter plate are arranged inside the filter box, a first spraying mechanism, a first mixing mechanism and a second spraying mechanism are sequentially arranged inside the first spraying tower from top to bottom, and a third spraying mechanism, a second mixing mechanism and a fourth spraying mechanism are sequentially arranged inside the second spraying tower from top to bottom;
the bottom of first spray column is connected with the third mixing box through first connecting pipe, the third mixing box is connected with the second spray column through the second connecting pipe, the intercommunication has oxygen generator on the third mixing box, the top fixedly connected with third motor of third mixing box, the output shaft and the third dwang fixed connection of third motor, be provided with the third blade on the third dwang, third mixing box, third connecting pipe, reverse osmosis filter equipment, fourth connecting pipe and cooling crystallization device connect gradually.
By adopting the scheme, before the flue gas enters the filter box from the air inlet pipe, the temperature of the flue gas is reduced through the heat exchanger, the influence of overhigh temperature of the flue gas on the reaction of the flue gas in the first spray tower is avoided, when the flue gas passes through the first filter plate and the second filter plate, dust carried in the flue gas is intercepted on one side of the first filter plate and one side of the second filter plate, the flue gas enters the first mixing box to react with ozone generated by the first ozone generator, the ozone oxidizes NO in the flue gas into NO2, after the flue gas enters the first spray tower, ammonia water sprayed by the first spray mechanism and the second spray mechanism is in reverse contact with the flue gas, nitrogen oxide and sulfur oxide in the flue gas are reacted to generate ammonium salt, the ammonia water sprayed by the first spray mechanism and the second spray mechanism is utilized to carry out desulfurization and denitration treatment on the flue gas, the arranged first mixing mechanism is favorable for enabling the rising flue gas to be in full contact with the ammonia, the flue gas enters a first spray towerAfter the second mixing box, the second ozone generator further oxidizes NO in the flue gas into NO2After entering the second spray tower, the ammonia water that the third spray mechanism and the fourth spray mechanism sprayed further carries out SOx/NOx control to the flue gas, the flue gas after the second spray tower is handled discharges after gas adsorption tank adsorption treatment, the effect of flue gas SOx/NOx control has been improved, the raffinate that sprays is stayed the bottom of first spray tower and second spray tower, get into the third mixing box through first connecting pipe and second connecting pipe in, the third motor drives third dwang and third blade and rotates, oxygen generator lets in oxygen to the third mixing box simultaneously, HSO in the raffinate that will spray3 -Oxidation to HSO4 -And then after treatment by a reverse osmosis filter device and a cooling crystallization device, the sprayed residual liquid forms solid ammonium salt which can be used as fertilizer after subsequent treatment, so that the solid waste generated in the treatment process is less.
Preferably, the spray tower further comprises a demister, and the demister is fixedly installed at the top of the second spray tower.
By adopting the scheme, the set demister is used for removing moisture entrained in the treated flue gas to enter the gas adsorption tank, so that the treatment effect of the gas adsorption tank is influenced.
Preferably, the first spraying mechanism comprises a first liquid storage tank fixedly mounted at the top of the first spraying tower, the first liquid storage tank is connected with a first booster pump through a first liquid inlet pipe, the first booster pump is connected with a first liquid outlet pipe, the first liquid outlet pipe extends into the first spraying tower, and a first spray head is arranged on the first liquid outlet pipe; the third sprays the mechanism and includes the second liquid reserve tank of fixed mounting at the second spray column top, the second liquid reserve tank passes through the third feed liquor pipe and is connected with the third booster pump, be connected with the third drain pipe on the third booster pump, the third drain pipe stretches into the inside of second spray column, be provided with the third shower nozzle on the third drain pipe.
Adopt above-mentioned scheme, the aqueous ammonia has been stored in first liquid reserve tank and the second liquid reserve tank, and first booster pump passes through first feed liquor pipe and first drain pipe with the aqueous ammonia in the first liquid reserve tank from first shower nozzle blowout, and the third booster pump passes through third feed liquor pipe and third drain pipe with the aqueous ammonia in the second liquid reserve tank from the third shower nozzle blowout, sprays the absorption to reverse flue gas.
Preferably, the first mixing mechanism comprises a first motor, the first motor is fixed on one side of the first spray tower, an output shaft of the first motor is fixedly connected with a first rotating rod, and the first rotating rod penetrates through the inside of the first spray tower and is fixedly connected with a first blade; the second mixing mechanism comprises a second motor, an output shaft of the second motor is fixedly connected with a second rotating rod, and the second rotating rod penetrates through the inner part of the second spray tower and is fixedly connected with second blades.
By adopting the scheme, the first motor drives the first rotating rod and the first blade to rotate, and the second motor drives the second rotating rod and the second blade to rotate, so that the flue gas is fully contacted with the ammonia water sprayed by the first spray head and the third spray head, and the ammonia water is promoted to spray and absorb the flue gas.
Preferably, the second spraying mechanism comprises a first packing layer and a second booster pump, the first packing layer is installed on the inner wall of the first spraying tower, the second booster pump is connected with one end of a second liquid inlet pipe, the other end of the second liquid inlet pipe extends into the bottom of the first spraying tower, the second booster pump is connected with a second liquid outlet pipe, the second liquid outlet pipe penetrates through the inside of the first spraying tower, and a second spray head is arranged on the second liquid outlet pipe; the fourth sprays the mechanism and includes second packing layer and fourth booster pump, the second packing layer is installed on the inner wall of second spray column, be connected with the one end of fourth feed liquor pipe on the fourth booster pump, the other end of fourth feed liquor pipe stretches into the bottom of second spray column, be connected with the fourth drain pipe on the fourth booster pump, the fourth drain pipe link up the inside of second spray column, be provided with the fourth shower nozzle on the fourth drain pipe.
Adopt above-mentioned scheme, the aqueous ammonia that first shower nozzle and third shower nozzle sprayed contacts the back with the flue gas, flow in the bottom of first spray column and second spray column, the second booster pump passes through second feed liquor pipe and second drain pipe with the raffinate that sprays bottom first spray column spout from the second shower nozzle, the flue gas reacts with the raffinate that sprays is reverse to meet, the first packing layer of setting has increased the flue gas and has sprayed the area of contact of raffinate, it absorbs the processing to the flue gas to have promoted to spray the raffinate, the fourth booster pump sprays the raffinate blowout from the fourth shower nozzle with the spray raffinate that the second sprayed bottom of the tower through fourth feed liquor pipe and fourth drain pipe, the second packing layer of setting has increased the flue gas and has sprayed the area of contact of raffinate, it absorbs the processing to the flue gas to have promoted to spray the raffinate.
Preferably, the inside fixedly connected with active carbon layer of gas adsorption tank, be provided with the outlet duct on the gas adsorption tank.
By adopting the scheme, the activated carbon layer can adsorb peculiar smell in the smoke, and clean smoke is discharged from the air outlet pipe after being treated by the activated carbon layer.
Preferably, a heater is installed in the second mixing tank.
By adopting the scheme, the flue gas entering the second mixing box is fully reacted with the ozone by heating to a certain temperature.
Preferably, the pore size of the first filter plate is larger than the pore size of the second filter plate.
Adopt above-mentioned scheme, the first filter and the second filter that set up carry out the classified filtration to the dust in the flue gas, have improved the filter effect of dust.
Preferably, a first valve is arranged on the first connecting pipe, and a second valve is arranged on the second connecting pipe.
Preferably, a third valve is arranged on the third connecting pipe, and a fourth valve is arranged on the fourth connecting pipe.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) dust smugglied secretly in can the effective filtration flue gas during first filter and the second filter that set up, the first spray column of setting and first spray mechanism and second spray the aqueous ammonia that the mechanism sprayed and can react with the flue gas contact, and the first mixing mechanism and the first packing layer of setting are favorable to making rising flue gas and first spray the mechanism spun aqueous ammonia fully contact, have improved the treatment effect of flue gas.
(2) The flue gas reacts with ozone in the second mixing box, and the second ozone generator further oxidizes NO in the flue gas into NO2And after the flue gas enters the second spray tower, the ammonia water sprayed by the third spray mechanism and the fourth spray mechanism is used for further carrying out desulfurization and denitrification treatment on the flue gas, and the flue gas treated by the second spray tower is discharged after being adsorbed by the gas adsorption box, so that the desulfurization and denitrification effects of the flue gas are improved.
(3) The sprayed residual liquid is left at the bottoms of the first spray tower and the second spray tower and enters a third mixing box through a first connecting pipe and a second connecting pipe, and meanwhile, the oxygen generator introduces oxygen into the third mixing box to perform HSO (hydrogen sulfide oxygen) treatment on the sprayed residual liquid3 -Oxidation to HSO4 -And then after treatment by a reverse osmosis filter device and a cooling crystallization device, the sprayed residual liquid forms solid ammonium salt which can be used as fertilizer after subsequent treatment, and the generated solid waste is less.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. an air inlet pipe; 2. a heat exchanger; 3. a filter box; 31. a first filter plate; 32. a second filter plate; 4. a first mixing tank; 5. a first ozone generator; 6. a first spray tower; 61. a first spraying mechanism; 611. a first liquid storage tank; 612. a first liquid inlet pipe; 613. a first booster pump; 614. a first liquid outlet pipe; 615. a first nozzle; 62. a first mixing mechanism; 621. a first motor; 622. a first blade; 623. a first rotating lever; 63. a second spraying mechanism; 631. a second liquid outlet pipe; 632. a second booster pump; 633. a second nozzle; 634. a first filler layer; 635. a second liquid inlet pipe; 64. a first connecting pipe; 641. a first valve; 7. a second mixing tank; 8. a second ozone generator; 9. a second spray tower; 91. a third spraying mechanism; 911. a second liquid storage tank; 912. a third liquid inlet pipe; 913. a third booster pump; 914. a third liquid outlet pipe; 915. a third spray head; 92. a second mixing mechanism; 921. a second motor; 922. a second blade; 923. a second rotating lever; 93. a fourth spraying mechanism; 931. a fourth liquid outlet pipe; 932. a fourth booster pump; 933. a fourth nozzle; 934. a second packing layer; 935. a fourth liquid inlet pipe; 94. a second connecting pipe; 941. a second valve; 95. a demister; 10. a gas adsorption tank; 101. an activated carbon layer; 102. an air outlet pipe; 11. an oxygen generator; 12. a third mixing tank; 121. a third motor; 122. a third rotating rod; 123. a third blade; 13. a third connecting pipe; 131. a third valve; 14. a reverse osmosis filtration device; 15. a fourth connecting pipe; 151. a fourth valve; 16. and cooling the crystallization device.
Detailed Description
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a flue gas desulfurization and denitration washing system, which comprises an air inlet pipe 1, a heat exchanger 2, a filter box 3, a first mixing box 4, a first spray tower 6, a second mixing box 7, a second spray tower 9 and a gas adsorption box 10 which are connected in sequence, wherein the adjacent heat exchanger 2, the filter box 3, the first mixing box 4, the first spray tower 6, the second mixing box 7, the second spray tower 9 and the gas adsorption box 10 are communicated with each other, the first mixing box 4 is communicated with a first ozone generator 5, and the second mixing box 7 is communicated with a second ozone generator 8;
a first filter plate 31 and a second filter plate 32 are arranged inside the filter box 3, a first spraying mechanism 61, a first mixing mechanism 62 and a second spraying mechanism 63 are sequentially arranged inside the first spraying tower 6 from top to bottom, and a third spraying mechanism 91, a second mixing mechanism 92 and a fourth spraying mechanism 93 are sequentially arranged inside the second spraying tower 9 from top to bottom;
the bottom of the first spray tower 6 is connected with a third mixing box 12 through a first connecting pipe 64, the third mixing box 12 is connected with a second spray tower 9 through a second connecting pipe 94, an oxygen generator 11 is communicated on the third mixing box 12, the top of the third mixing box 12 is fixedly connected with a third motor 121, the output shaft of the third motor 121 is fixedly connected with a third rotating rod 122, a third blade 123 is arranged on the third rotating rod 122, the third mixing box 12, a third connecting pipe 13, a reverse osmosis filtering device 14, a fourth connecting pipe 15 and a cooling crystallization device 16 are sequentially connected.
Before the flue gas enters the filter box 3 from the air inlet pipe 1, the temperature of the flue gas is reduced through the heat exchanger 2, the reaction of the flue gas in the first spray tower 6 is prevented from being influenced by overhigh temperature of the flue gas, when the flue gas passes through the first filter plate 31 and the second filter plate 32, dust carried in the flue gas is intercepted at one side of the first filter plate 31 and the second filter plate 32, the flue gas enters the first mixing box 4 to react with ozone generated by the first ozone generator 5, and the ozone oxidizes NO in the flue gas into NO2After the flue gas enters the first spray tower 6, the ammonia water sprayed by the first spray mechanism 61 and the ammonia water sprayed by the second spray mechanism 63 reversely contact the flue gas to enable nitrogen oxides and sulfur oxides in the flue gas to react to generate ammonium salt, so that the ammonia water sprayed by the first spray mechanism 61 and the ammonia water sprayed by the second spray mechanism 63 are utilized to carry out desulfurization and denitration treatment on the flue gas, the arranged first mixing mechanism 62 is favorable for enabling the rising flue gas to fully contact the ammonia water sprayed by the first spray mechanism 61, and after the first spray tower 6 of the flue gas enters the second mixing box 7, the NO in the flue gas is further oxidized into NO by the second ozone generator 82After entering the second spray tower 9, the ammonia water sprayed by the third spray mechanism 91 and the fourth spray mechanism 93 is used for further performing desulfurization and denitrification treatment on the flue gas, the flue gas treated by the second spray tower 9 is discharged after being adsorbed by the gas adsorption box 10, the desulfurization and denitrification effects of the flue gas are improved, the sprayed residual liquid is left at the bottoms of the first spray tower 6 and the second spray tower 9, the flue gas enters the third mixing box 12 through the first connecting pipe 64 and the second connecting pipe 94, the third motor 121 drives the third rotating rod 122 and the third blade 123 to rotate, meanwhile, the oxygen generator 11 introduces oxygen into the third mixing box 12, and the HSO in the residual liquid to be sprayed3 -Oxidation to HSO4 -Then passes through a reverse osmosis filtering device 14 and a cooling crystallization device 16, after treatment, the sprayed residual liquid forms solid ammonium salt which can be used as fertilizer after subsequent treatment, so that the solid waste generated in the treatment process is less.
The utility model discloses still include defroster 95, defroster 95 fixed mounting is at the top of second spray column 9.
The demister 95 is used for removing moisture entrained in the treated flue gas and entering the gas adsorption tank 10, so that the treatment effect of the gas adsorption tank 10 is influenced.
The first spraying mechanism 61 comprises a first liquid storage tank 611 fixedly mounted at the top of the first spraying tower 6, the first liquid storage tank 611 is connected with a first booster pump 613 through a first liquid inlet pipe 612, the first booster pump 613 is connected with a first liquid outlet pipe 614, the first liquid outlet pipe 614 extends into the first spraying tower 6, and a first spray head 615 is arranged on the first liquid outlet pipe 614; the third spraying mechanism 91 comprises a second liquid storage tank 911 fixedly mounted at the top of the second spraying tower 9, the second liquid storage tank 911 is connected with a third booster pump 913 through a third liquid inlet pipe 912, the third booster pump 913 is connected with a third liquid outlet pipe 914, the third liquid outlet pipe 914 extends into the second spraying tower 9, and a third spray head 915 is arranged on the third liquid outlet pipe 914.
The first liquid storage tank 611 and the second liquid storage tank 911 are stored with ammonia water, the first booster pump 613 sprays the ammonia water in the first liquid storage tank 611 from the first nozzle 615 through the first liquid inlet pipe 612 and the first liquid outlet pipe 614, and the third booster pump 913 sprays the ammonia water in the second liquid storage tank 911 from the third nozzle 915 through the third liquid inlet pipe 912 and the third liquid outlet pipe 914, so that the reverse smoke is sprayed and absorbed.
The first mixing mechanism 62 comprises a first motor 621, the first motor 621 is fixed on one side of the first spray tower 6, an output shaft of the first motor 621 is fixedly connected with a first rotating rod 623, and the first rotating rod 623 penetrates through the first spray tower 6 and is fixedly connected with a first blade 622; the second mixing mechanism 92 includes a second motor 921, an output shaft of the second motor 921 is fixedly connected to a second rotating rod 923, and the second rotating rod 923 penetrates through the inside of the second spray tower 9 and is fixedly connected to a second blade 922.
The second spraying mechanism 63 comprises a first packing layer 634 and a second booster pump 632, the first packing layer 634 is mounted on the inner wall of the first spraying tower 6, the second booster pump 632 is connected with one end of a second liquid inlet pipe 635, the other end of the second liquid inlet pipe 635 extends into the bottom of the first spraying tower 6, the second booster pump 632 is connected with a second liquid outlet pipe 631, the second liquid outlet pipe 631 penetrates through the inside of the first spraying tower 6, and a second spray head 633 is arranged on the second liquid outlet pipe 631; the fourth spraying mechanism 93 comprises a second packing layer 934 and a fourth booster pump 932, the second packing layer 934 is installed on the inner wall of the second spraying tower 9, one end of a fourth liquid inlet pipe 935 is connected to the fourth booster pump 932, the other end of the fourth liquid inlet pipe 935 extends into the bottom of the second spraying tower 9, a fourth liquid outlet pipe 931 is connected to the fourth booster pump 932, the fourth liquid outlet pipe 931 penetrates through the inside of the second spraying tower 9, and a fourth nozzle 933 is arranged on the fourth liquid outlet pipe 931.
The aqueous ammonia that first shower nozzle 615 and third shower nozzle 915 sprayed contacts the back with the flue gas, flow in the bottom of first spray column 6 and second spray column 9, second booster pump 632 spouts in the raffinate that sprays of first spray column 6 bottom from second shower nozzle 633 through second feed liquor pipe 635 and second drain pipe 631, the flue gas reacts with the raffinate that sprays is reverse to meet, the first packing layer 634 that sets up has increased the flue gas and has sprayed the area of contact of raffinate, it absorbs the processing to the flue gas to have promoted to spray the raffinate, fourth booster pump 932 spouts from fourth shower nozzle 933 with the raffinate that sprays of second spray column 9 bottom through fourth feed liquor pipe 935 and fourth drain pipe 931, the second packing layer 934 that sets up has increased the flue gas and has sprayed the area of contact of raffinate, it absorbs the processing to have promoted to spray the raffinate flue gas.
An activated carbon layer 101 is fixedly connected to the inside of the gas adsorption tank 10, and an outlet pipe 102 is arranged on the gas adsorption tank 10.
The activated carbon layer 101 can adsorb peculiar smell in the flue gas, and clean flue gas is discharged from the gas outlet pipe 102 after being treated by the activated carbon layer 101.
The second mixing box 7 is internally provided with a heater, and the flue gas entering the second mixing box 7 is fully reacted with ozone by heating to a certain temperature.
The aperture of first filter 31 is greater than the aperture of second filter 32, and the dust of first filter 31 and the second filter 32 of setting in to the flue gas carries out the classified filtration, has improved the filter effect of dust.
The first connection pipe 64 is provided with a first valve 641, and the second connection pipe 94 is provided with a second valve 941.
The third connecting pipe 13 is provided with a third valve 131, and the fourth connecting pipe 15 is provided with a fourth valve 151.
The use process comprises the following steps: before the flue gas enters the filter box 3 from the air inlet pipe 1, the temperature of the flue gas is reduced through the heat exchanger 2, the reaction of the flue gas in the first spray tower 6 is prevented from being influenced by overhigh temperature of the flue gas, when the flue gas passes through the first filter plate 31 and the second filter plate 32, dust carried in the flue gas is intercepted at one side of the first filter plate 31 and the second filter plate 32, the flue gas enters the first mixing box 4 to react with ozone generated by the first ozone generator 5, and the ozone oxidizes NO in the flue gas into NO2；
When the flue gas enters the first spray tower 6, the first booster pump 613 sprays the ammonia water in the first liquid storage tank 611 from the first spray head 615 through the first liquid inlet pipe 612 and the first liquid outlet pipe 614, the spray residual liquid falls into the bottom of the first spray tower 6, the second booster pump 632 sprays the spray residual liquid at the bottom of the first spray tower 6 from the second spray head 633 through the second liquid inlet pipe 635 and the second liquid outlet pipe 631, the sprayed ammonia water is in reverse contact with the flue gas, so that the nitrogen oxide and the sulfur oxide in the flue gas react to generate ammonium salt, the contact area between the flue gas and the spray liquid is increased by the arranged first packing layer 634, the first motor 621 drives the first rotating rod 623 and the first blade 622 to rotate, the flue gas is in full contact with the ammonia water sprayed from the first spray head 615, and the spray absorption of the flue gas by the ammonia water is promoted, therefore, the first spraying mechanism 61 and the second spraying mechanism 63 can be used for preliminarily carrying out desulfurization and denitration treatment on the flue gas;
the flue gas in the first spray tower 6 enters a second mixing box 7, and second ozone is generatedThe generator 8 further oxidizes NO in the flue gas into NO2A heater is arranged in the second mixing box 7, and the flue gas entering the second mixing box 7 is fully reacted with ozone by heating to a certain temperature, so that the subsequent spray treatment of the flue gas is facilitated;
when flue gas enters the second spray tower 9, the third booster pump 913 sprays ammonia water in the second liquid storage tank 911 from the third spray head 915 through the third liquid inlet pipe 912 and the third liquid outlet pipe 914 to spray and absorb reverse flue gas, residual liquid falls into the bottom of the second spray tower 9, the fourth booster pump 932 sprays the residual liquid sprayed from the bottom of the second spray tower 9 from the fourth spray head 933 through the fourth liquid inlet pipe 935 and the fourth liquid outlet pipe 931, the second packing layer 934 increases the contact area of the flue gas and the residual liquid sprayed, so as to promote the residual liquid sprayed to absorb the flue gas, the second motor 921 drives the second rotating rod 923 and the second blades 922 to rotate, so that the flue gas is fully contacted with the ammonia water sprayed by the third spray head 915, so as to promote the ammonia water to spray and absorb the flue gas, the ammonia water sprayed by the third spray mechanism 91 and the fourth spray mechanism 93 can further perform desulfurization and denitrification treatment on the flue gas, the demister 95 is arranged for removing moisture entrained in the treated flue gas and enabling the flue gas to enter the gas adsorption box 10;
the flue gas treated by the second spray tower 9 enters the gas adsorption box 10, is exhausted from the gas outlet pipe 102 after being subjected to odor adsorption by the activated carbon layer 101, and is exhausted after adsorption treatment, so that the desulfurization and denitrification effects of the flue gas are improved;
the sprayed residual liquid is remained at the bottom of the first spray tower 6 and the second spray tower 9, the first valve 641 and the second valve 941 are opened, the sprayed residual liquid enters the third mixing box 12 through the first connecting pipe 64 and the second connecting pipe 94, the third motor 121 drives the third rotating rod 122 and the third blade 123 to rotate, meanwhile, the oxygen generator 11 introduces oxygen into the third mixing box 12, and the HSO in the sprayed residual liquid is treated3 -Oxidation to HSO4 -And then after being treated by a reverse osmosis filtering device 14 and a cooling crystallization device 16, the sprayed residual liquid forms solid ammonium salt which can be used as fertilizer after subsequent treatment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a flue gas desulfurization denitration washing system which characterized in that: the device comprises an air inlet pipe (1), a heat exchanger (2), a filter box (3), a first mixing box (4), a first spray tower (6), a second mixing box (7), a second spray tower (9) and a gas adsorption box (10) which are sequentially connected, wherein the adjacent heat exchanger (2), the filter box (3), the first mixing box (4), the first spray tower (6), the second mixing box (7), the second spray tower (9) and the gas adsorption box (10) are communicated with each other, the first mixing box (4) is communicated with a first ozone generator (5), and the second mixing box (7) is communicated with a second ozone generator (8);
a first filter plate (31) and a second filter plate (32) are arranged inside the filter box (3), a first spraying mechanism (61), a first mixing mechanism (62) and a second spraying mechanism (63) are sequentially arranged inside the first spraying tower (6) from top to bottom, and a third spraying mechanism (91), a second mixing mechanism (92) and a fourth spraying mechanism (93) are sequentially arranged inside the second spraying tower (9) from top to bottom;
the bottom of first spray tower (6) is connected with third mixing box (12) through first connecting pipe (64), third mixing box (12) are connected with second spray tower (9) through second connecting pipe (94), intercommunication aerobic generator (11) on third mixing box (12), the top fixedly connected with third motor (121) of third mixing box (12), the output shaft and the third dwang (122) fixed connection of third motor (121), be provided with third blade (123) on third dwang (122), third mixing box (12), third connecting pipe (13), reverse osmosis filter equipment (14), fourth connecting pipe (15) and cooling crystallization device (16) connect gradually.
2. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: the spray tower further comprises a demister (95), and the demister (95) is fixedly installed at the top of the second spray tower (9).
3. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: the first spraying mechanism (61) comprises a first liquid storage tank (611) fixedly mounted at the top of a first spraying tower (6), the first liquid storage tank (611) is connected with a first booster pump (613) through a first liquid inlet pipe (612), a first liquid outlet pipe (614) is connected to the first booster pump (613), the first liquid outlet pipe (614) extends into the first spraying tower (6), and a first spray head (615) is arranged on the first liquid outlet pipe (614); the third sprays mechanism (91) including second liquid reserve tank (911) of fixed mounting at second spray column (9) top, second liquid reserve tank (911) are connected with third booster pump (913) through third feed liquor pipe (912), be connected with third drain pipe (914) on third booster pump (913), third drain pipe (914) stretch into the inside of second spray column (9), be provided with third shower nozzle (915) on third drain pipe (914).
4. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: the first mixing mechanism (62) comprises a first motor (621), the first motor (621) is fixed on one side of the first spray tower (6), an output shaft of the first motor (621) is fixedly connected with a first rotating rod (623), and the first rotating rod (623) penetrates through the first spray tower (6) and is fixedly connected with a first blade (622); second mixing mechanism (92) includes second motor (921), the output shaft and second dwang (923) fixed connection of second motor (921), second dwang (923) link up the inside and the fixedly connected with second blade (922) of second spray tower (9).
5. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: the second spraying mechanism (63) comprises a first packing layer (634) and a second booster pump (632), the first packing layer (634) is installed on the inner wall of the first spraying tower (6), the second booster pump (632) is connected with one end of a second liquid inlet pipe (635), the other end of the second liquid inlet pipe (635) extends into the bottom of the first spraying tower (6), the second booster pump (632) is connected with a second liquid outlet pipe (631), the second liquid outlet pipe (631) penetrates through the first spraying tower (6), and a second spray head (633) is arranged on the second liquid outlet pipe (631); the fourth sprays mechanism (93) and includes second packing layer (934) and fourth booster pump (932), install second packing layer (934) on the inner wall of second spray column (9), be connected with the one end of fourth feed liquor pipe (935) on fourth booster pump (932), the other end of fourth feed liquor pipe (935) stretches into the bottom of second spray column (9), be connected with fourth drain pipe (931) on fourth booster pump (932), fourth drain pipe (931) link up the inside of second spray column (9), be provided with fourth shower nozzle (933) on fourth drain pipe (931).
6. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: the gas adsorption tank is characterized in that an activated carbon layer (101) is fixedly connected to the inside of the gas adsorption tank (10), and a gas outlet pipe (102) is arranged on the gas adsorption tank (10).
7. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: a heater is arranged in the second mixing box (7).
8. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: the aperture of the first filter plate (31) is larger than that of the second filter plate (32).
9. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: be provided with first valve (641) on first connecting pipe (64), be provided with second valve (941) on second connecting pipe (94).
10. The flue gas desulfurization and denitration washing system of claim 1, characterized in that: and a third valve (131) is arranged on the third connecting pipe (13), and a fourth valve (151) is arranged on the fourth connecting pipe (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023123924.0U CN212548975U (en) | 2020-12-23 | 2020-12-23 | Flue gas desulfurization denitration washing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023123924.0U CN212548975U (en) | 2020-12-23 | 2020-12-23 | Flue gas desulfurization denitration washing system |
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| CN212548975U true CN212548975U (en) | 2021-02-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117065551A (en) * | 2023-10-18 | 2023-11-17 | 上海鲁源控制设备有限公司 | Mixing equipment for denitration ammonia injection |
| GB2622221A (en) * | 2022-09-06 | 2024-03-13 | Carbon Clean Solutions Ltd | An energy efficient method and system for the removal of impurities in a flue gas |
| GB2623575A (en) * | 2022-10-21 | 2024-04-24 | Clean Thermodynamic Energy Conv Ltd | Exhaust gas treatment system and method |
-
2020
- 2020-12-23 CN CN202023123924.0U patent/CN212548975U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2622221A (en) * | 2022-09-06 | 2024-03-13 | Carbon Clean Solutions Ltd | An energy efficient method and system for the removal of impurities in a flue gas |
| GB2623575A (en) * | 2022-10-21 | 2024-04-24 | Clean Thermodynamic Energy Conv Ltd | Exhaust gas treatment system and method |
| CN117065551A (en) * | 2023-10-18 | 2023-11-17 | 上海鲁源控制设备有限公司 | Mixing equipment for denitration ammonia injection |
| CN117065551B (en) * | 2023-10-18 | 2024-01-02 | 上海鲁源控制设备有限公司 | Mixing equipment for denitration ammonia injection |
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