CN221156091U - Tail gas treatment system of ammonia desulfurization drying system - Google Patents
Tail gas treatment system of ammonia desulfurization drying system Download PDFInfo
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- CN221156091U CN221156091U CN202322894268.1U CN202322894268U CN221156091U CN 221156091 U CN221156091 U CN 221156091U CN 202322894268 U CN202322894268 U CN 202322894268U CN 221156091 U CN221156091 U CN 221156091U
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- tail gas
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- washing
- circulating pump
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 45
- 230000023556 desulfurization Effects 0.000 title claims abstract description 45
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000001035 drying Methods 0.000 title claims abstract description 20
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 77
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 59
- 238000005406 washing Methods 0.000 claims abstract description 56
- 238000011010 flushing procedure Methods 0.000 claims description 19
- 239000002912 waste gas Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 6
- 125000003003 spiro group Chemical group 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 40
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract description 31
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract description 31
- 235000011130 ammonium sulphate Nutrition 0.000 abstract description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 238000005507 spraying Methods 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 description 35
- 239000000428 dust Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 13
- 230000001502 supplementing effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a tail gas treatment system of an ammonia desulfurization drying system, which comprises a fluidized bed, a cyclone separator, a conveying pump and a desulfurization tower, and solves the problems that the tail gas is seriously carried with ammonium sulfate powder and the tail gas emission environmental protection index is unqualified due to insufficient washing and spraying amount of the ammonium sulfate drying tail gas desulfurization tower; solves the problems of on-site water drop drifting and smoke tailing caused by serious water entrainment of tail gas at the outlet of the desulfurizing tower; the problem of serious corrosion of equipment caused by drying tail gas around an ammonium sulfate factory building is solved, meanwhile, the efficient demister is additionally arranged to effectively treat fog drops carried by the tail gas, the environment-friendly index of the tail gas discharged by the desulfurizing tower is ensured to be qualified, and the phenomena of water carrying and tailing of flue gas are avoided.
Description
Technical field:
the utility model relates to the technical field of clean production, in particular to a tail gas treatment system of an ammonia desulfurization drying system.
The background technology is as follows:
The boiler flue gas is desulfurized by an ammonia method, and the byproduct ammonium sulfate is a relatively economical production and operation mode selected by many chemical enterprises, but a large amount of ammonium sulfate dust exists in the drying process of the byproduct ammonium sulfate product and is carried and discharged by the drying tail gas, so that the on-site environment and equipment are severely corroded, and meanwhile, the air pollution is caused. Therefore, the problem of pollution of the drying tail gas of the ammonium sulfate byproduct in the ammonia desulfurization is solved, and the method becomes a technical problem of various large enterprises.
The annual production of the ammonia desulfurization device is 13000 tons, the ammonium sulfate product with the water content of 3 percent is dried in a vibrating fluidized bed through flowing hot air to become a qualified product with the water content of less than 2 percent, and meanwhile, a large amount of ammonium sulfate powder is carried by flowing air to enter a tail gas washing tower, so that the efficiency of a washing tower dust remover is low, a large amount of ammonium sulfate dust is not removed, and the ammonium sulfate powder is discharged into the atmosphere, thereby seriously polluting the site environment.
The utility model comprises the following steps:
The utility model aims to provide an ammonia desulfurization drying system tail gas treatment system.
The utility model is implemented by the following technical scheme:
The tail gas treatment system of the ammonia desulfurization drying system comprises a fluidized bed, a cyclone separator, a conveying pump and a desulfurization tower, wherein the waste gas output end of the fluidized bed is fixedly connected and communicated with the waste gas input end of the cyclone separator through a pipeline, the waste gas output end of the cyclone separator is fixedly connected and communicated with the input end of the conveying pump through a pipeline, the output end of the conveying pump is fixedly connected and communicated with the waste gas input end of the desulfurization tower through a pipeline, a plurality of demisters are fixedly arranged in the desulfurization tower, one side of the desulfurization tower is fixedly connected with a flushing pipeline, one side of the desulfurization tower is fixedly connected with a first washing pipeline, a reflux pipeline and a second washing pipeline, one end of the first washing pipeline is fixedly provided with a third circulating pump, one end of the second washing pipeline is fixedly provided with a first circulating pump, the other end of the reflux pipeline is fixedly connected and communicated with the bottom of the desulfurization tower, the output end of the second circulating pump is fixedly connected and communicated with the first washing pipeline and the second washing pipeline respectively, the input ends of the first circulating pump, the second circulating pump and the third circulating pump are fixedly connected and communicated with the backflow pipeline through pipelines respectively, the bottom of the desulfurizing tower is fixedly connected with a discharge pipe, the discharge pipe is fixedly connected and communicated with the waste water output ends of the first circulating pump, the second circulating pump and the third circulating pump through a plurality of pipelines respectively, the total height of the desulfurizing tower is 21 m, the diameter is 2.5 m, the first circulating pump, the second circulating pump and the third circulating pump are two-in-one, the first circulating pump and the third circulating pump independently operate, and the second circulating pump serves as a standby pump of the first circulating pump and the third circulating pump and can replace any one to operate.
The lower part of the desulfurizing tower holds 1.5 m of liquid, a first circulating pump extracts slurry from the bottom of the desulfurizing tower, an outlet is divided into two paths through a second washing pipeline, one path of slurry is sent to the middle part of the desulfurizing tower, and the slurry is atomized and sprayed through a high-efficiency spray head in the desulfurizing tower to contact and wash the upstream flue gas; the other path of slurry is sent to the flue of the inlet of the desulfurizing tower, the flue gas of the inlet of the washing tower is preliminarily washed by utilizing a high nozzle, the third circulating pump pumps the slurry from the inner effusion device at the upper part of the desulfurizing tower, the slurry is sprayed to the upper spray pipe through the first washing pipeline, and the tail gas is further washed by atomizing and spraying through the high-efficiency nozzle.
The circulation flow of spraying of each layer of the desulfurizing tower is 120t/h, the total circulation washing amount is 240t/h, the demister washing water at the top of the desulfurizing tower is used as water supplementing of the desulfurizing tower, when the water level at the upper part of the liquid accumulation device is higher than a water retaining weir, the liquid automatically overflows to a storage tank at the lower part of the desulfurizing tower, an overflow port is arranged at the position of 1.5 m of the storage tank at the lower part of the desulfurizing tower, the liquid level of the desulfurizing tower is reacted through monitoring the overflow of the desulfurizing tower, so that the water supplementing amount entering the desulfurizing tower is controlled, three layers of high-efficiency demisters are arranged in the desulfurizing tower to carry out demisting treatment on washed tail gas, meanwhile, washing water is arranged below and above each layer of demister, the demisters can be washed by using a washing nozzle, the specific gravity of slurry in the desulfurizing tower is analyzed, when the specific gravity of the slurry is increased, and the slurry is diluted and replaced, the slurry is increased through the top demister washing water, the slurry is increased, the slurry is discharged from an overflow pipe to a first-building pit of an ammonium sulfate factory, and finally, the overflow liquid is pumped to the desulfurizing tower as system water supplementing water.
Preferably, the flushing pipeline is a multi-way pipe, a plurality of ports of the flushing pipeline extend into the desulfurizing tower respectively, and a flushing nozzle is fixedly arranged at each of the plurality of ports of the flushing pipeline, so that the demister can be flushed by the flushing nozzle, and the normal operation of washing and purifying work is ensured.
Preferably, the port junction fixedly connected with flange of first washing pipeline, joint has inserted the retaining member jointly between two flange of correspondence, the retaining member is whole annular, and the sealing washer has all been cup jointed at the both ends of retaining member, two port departments of retaining member are echelonment, the top and the bottom of retaining member are divided by fixedly connected with connecting block, the equal fixedly connected with pin in both sides of every connecting block, annular even fixedly connected with a plurality of locking screw on the both sides outer wall of retaining member, a plurality of locking screw pass the screw hole on the flange of correspondence respectively, all spiro union have the nut on every locking screw, can make the pipeline junction more convenient connect like this, further guarantee the spacing of sealing washer, can not break away from or misplace, lead to the packing is not tight, the condition appears, be provided with structures such as pin simultaneously, can avoid the pipeline to use for a long time afterwards because the dislocation condition that reasons such as vibrations lead to, further assurance sealed effect, the condition such as buckling or deformation appear can effectively be prevented to appear in the pipeline simultaneously, further emergence of the junction emergence of seepage condition.
The problems of serious ammonium sulfate powder carried in the tail gas and unqualified environmental protection indexes of the tail gas emission caused by insufficient washing and spraying amount of the ammonium sulfate drying tail gas desulfurization tower are solved through the transformation; solves the problems of on-site water drop drifting and smoke tailing caused by serious water entrainment of tail gas at the outlet of the desulfurizing tower; the problem of serious corrosion of equipment around an ammonium sulfate factory due to dry tail gas is solved.
Meanwhile, the ammonium sulfate drying tail gas can be sufficiently washed, dust carried in the tail gas can be effectively absorbed, meanwhile, the efficient demister is additionally arranged to effectively treat fog drops carried in the tail gas, the environment-friendly index of the tail gas discharged by the desulfurizing tower is ensured to be qualified, the phenomenon of smoke carrying and tailing does not exist, the washing circulation volume of the tail gas desulfurizing tower is increased to achieve the purpose of efficiently absorbing the dust, meanwhile, the multi-layer efficient demister is adopted to sufficiently demist and dehydrate the tail gas, the carrying volume of the discharged tail gas is reduced, and therefore, the consumption of process water of the tail gas desulfurizing tower is reduced, the requirement that the tail gas meets the standard is met, and the process production cost of the ammonium sulfate is reduced.
The demister flushing water at the top of the ammonia sulfate tail gas desulfurization tower is used as the water supplementing of the washing tower, so that the concentration of slurry at the upper part of the desulfurization tower liquid collector is always lower than that at the lower part, layered washing of the tail gas is realized (the higher the concentration of slurry is, the worse the washing and dust removing effects are), the tail gas is firstly washed by slurry with relatively higher concentration at the lower layer, the dust carrying amount in the tail gas is greatly reduced, and then the tail gas is further washed by slurry with relatively lower concentration at the upper layer, so that dust in the tail gas can be further washed and removed.
The tail gas desulfurization tower is arranged in a third building of the ammonium sulfate factory, the slurry replaced by the desulfurization tower automatically flows back to a first building pit of the ammonium sulfate factory, a slurry conveying link is omitted in the middle, and the slurry discharged to the pit is pumped to the desulfurization tower through a pump to be used as water replenishing, so that no wastewater treatment and discharge problems occur.
The utility model has the advantages that: solves the problems that the tail gas is seriously carried with ammonium sulfate powder and the tail gas emission environmental protection index is unqualified due to insufficient washing and spraying amount of an ammonium sulfate drying tail gas desulfurization tower; solves the problems of on-site water drop drifting and smoke tailing caused by serious water entrainment of tail gas at the outlet of the desulfurizing tower; the problem of equipment serious corrosion around the ammonium sulfate factory building because dry tail gas leads to is eliminated, increase high-efficient defroster simultaneously and carry the droplet to the tail gas and carry effective handling, ensure that desulfurizing tower exhaust tail gas environmental protection index is qualified, and there is not flue gas area water and tailing phenomenon, increase the washing circulation volume of tail gas desulfurizing tower and reach the purpose of high-efficient absorption dust, adopt the high-efficient defroster of multilayer simultaneously, carry out abundant defogging dehydration to the tail gas, reduce the area water volume of discharging tail gas, thereby reduce the consumption of the process water of tail gas desulfurizing tower, not only reached the requirement that tail gas emission up to standard, and reduced ammonium sulfate technology manufacturing cost.
Description of the drawings:
FIG. 1 is a schematic flow diagram of a system of the present utility model;
Fig. 2 is a schematic illustration of a mid-pipe connection of the present utility model.
In the figure: the fluidized bed 1, the cyclone separator 2, the delivery pump 3, the desulfurizing tower 4, the flushing pipeline 5, the first washing pipeline 6, the reflux pipeline 7, the second washing pipeline 8, the first circulating pump 9, the second circulating pump 10, the third circulating pump 11, the discharge pipe 12, the connecting flange 13, the locking piece 14, the sealing ring 15 and the demister 16.
The specific embodiment is as follows:
As shown in fig. 1 to 2, an ammonia desulfurization drying system tail gas treatment system comprises a fluidized bed 1, a cyclone separator 2, a conveying pump 3 and a desulfurization tower 4, wherein the waste gas output end of the fluidized bed 1 is fixedly connected and communicated with the waste gas input end of the cyclone separator 2 through a pipeline, the waste gas output end of the cyclone separator 2 is fixedly connected and communicated with the input end of the conveying pump 3 through a pipeline, the output end of the conveying pump 3 is fixedly connected and communicated with the waste gas input end of the desulfurization tower 4 through a pipeline, a plurality of demisters 16 are fixedly arranged in the desulfurization tower 4, one side of the desulfurization tower 4 is fixedly connected with a flushing pipeline 5, one side of the desulfurization tower 4 is fixedly connected with a first washing pipeline 6, a reflux pipeline 7 and a second washing pipeline 8, one end of the first washing pipeline 6 is fixedly provided with a third circulating pump 11, one end of the second washing pipeline 8 is fixedly provided with a first circulating pump 9, the other end of the return pipe 7 is fixedly connected and communicated with the bottom of the desulfurizing tower 4, a second circulating pump 10 is arranged between the first circulating pump 9 and the third circulating pump 11, the output end of the second circulating pump 10 is respectively and fixedly connected and communicated with the first washing pipe 6 and the second washing pipe 8, the input ends of the first circulating pump 9, the second circulating pump 10 and the third circulating pump 11 are respectively and fixedly connected and communicated with the return pipe 7 through pipes, the bottom of the desulfurizing tower 4 is fixedly connected with a discharge pipe 12, the discharge pipe 12 is respectively and fixedly connected and communicated with the waste water output ends of the first circulating pump 9, the second circulating pump 10 and the third circulating pump 11 through a plurality of pipes, the total height of the desulfurizing tower 4 is 21 m, the diameter is 2.5 m, the first circulating pump 9, the second circulating pump 10 and the third circulating pump 11 are two-to-one, the first circulating pump 9 and the third circulating pump 11 are independently operated, the second circulating pump 10 can be used as a standby pump of the first circulating pump 9 and the third circulating pump 11 to replace any one for working.
The lower part of the desulfurizing tower 4 holds 1.5 meters of liquid, a first circulating pump 9 extracts slurry from the bottom of the desulfurizing tower 4, an outlet is divided into two paths through a second washing pipeline 8, one path of slurry is sent to the middle part of the desulfurizing tower 4, and the slurry is atomized and sprayed through a high-efficiency spray head in the desulfurizing tower 4 to contact and wash the upstream flue gas; the other path of slurry is sent to the flue at the inlet of the desulfurizing tower 4, the flue gas at the inlet of the washing tower is preliminarily washed by utilizing a high nozzle, the slurry is pumped from the inner liquid collector at the upper part of the desulfurizing tower 4 by a third circulating pump 11, is sprayed to the upper spray pipe through a first washing pipeline 6, and is atomized and sprayed by a high-efficiency nozzle to further wash tail gas.
Each layer of spraying circulation flow of the desulfurizing tower 4 is 120t/h, the total circulation washing amount is 240t/h, demister flushing water at the top of the desulfurizing tower 4 is used as water supplementing of the desulfurizing tower 4, when the water level at the upper part of the liquid accumulation device is higher than a water retaining weir, the liquid automatically overflows to a storage tank at the lower part of the desulfurizing tower 4, an overflow port is formed in the position of 1.5 m of the storage tank at the lower part of the desulfurizing tower 4, the liquid level of the desulfurizing tower 4 is subjected to overflow reaction through monitoring the desulfurizing tower 4, so that the water supplementing amount entering the desulfurizing tower 4 is controlled, three layers of high-efficiency demisters 16 are arranged in the desulfurizing tower 4 to demist the washed tail gas, flushing water is arranged below and above each layer of demisters 16, the demisters can be used for flushing the demisters, the specific gravity of slurry of the desulfurizing tower 4 is analyzed, when the specific gravity of the slurry is increased, and the washing effect is reduced, the flushing water is supplemented into the desulfurizing tower through the top demister 16 when the slurry is diluted and replaced, the liquid level of the desulfurizing tower 4 is increased, the slurry is discharged from a pipe to an ammonium sulfate factory, and a pit is finally pumped into the overflow pit to the desulfurizing tower 4, and the overflow system is used as water supplementing water for recycling.
The flushing pipeline 5 is a multi-way pipe, a plurality of ports of the flushing pipeline 5 extend into the desulfurizing tower 4 respectively, flushing spray heads are fixedly arranged at the plurality of ports of the flushing pipeline 5 respectively, and thus the demister 16 can be flushed by the flushing spray heads, and the normal operation of washing and purifying work is ensured.
The port junction fixedly connected with flange 13 of first washing pipeline 6, joint has inserted retaining member 14 jointly between two corresponding flange 13, retaining member 14 wholly is the ring form, and sealing washer 15 has all been cup jointed at the both ends of retaining member 14, two port departments of retaining member 14 are echelonment, the top and the bottom of retaining member 14 are divided by fixedly connected with connecting block, the both sides of every connecting block are all fixedly connected with pin, annular even fixedly connected with a plurality of locking screw on the both sides outer wall of retaining member 14, a plurality of locking screw pass the screw hole on corresponding flange 13 respectively, all spiro union has the nut on every locking screw, can make pipeline junction can more convenient connect like this, further guarantee the spacing of sealing washer 15, can not break away from or misplace, lead to sealed untight, the condition of leakage appears, structure such as the pin is provided with simultaneously, can avoid the pipeline to use for a long time after because the dislocation condition that vibrations etc. lead to, further assurance sealing effect, simultaneously can effectively prevent the condition that the pipeline appears or warp the condition appears, further emergence bending of the condition that the junction appears.
The problems that the tail gas carries serious ammonium sulfate powder and the tail gas emission environmental protection index is unqualified due to the insufficient washing and spraying amount of the ammonium sulfate drying tail gas desulfurization tower 4 are solved through the transformation; solves the problems of on-site water drop drifting and smoke tailing caused by serious water entrainment of tail gas at the outlet of the desulfurizing tower 4; the problem of serious corrosion of equipment around an ammonium sulfate factory due to dry tail gas is solved.
Meanwhile, the ammonium sulfate drying tail gas can be sufficiently washed, dust carried in the tail gas can be effectively absorbed, meanwhile, the efficient demister 16 is additionally arranged to effectively treat fog drops carried in the tail gas, the environment-friendly index of the tail gas discharged by the desulfurizing tower 4 is ensured to be qualified, the phenomenon of smoke carrying and tailing does not exist, the aim of efficiently absorbing the dust is achieved by increasing the washing circulation quantity of the tail gas desulfurizing tower 4, meanwhile, the multi-layer efficient demister 16 is adopted to sufficiently demist and dehydrate the tail gas, the carrying quantity of the discharged tail gas is reduced, and therefore the consumption of process water of the tail gas desulfurizing tower 4 is reduced, the requirement of standard emission of the tail gas is met, and the production cost of an ammonium sulfate process is reduced.
The washing water of the demister 16 at the top of the ammonia sulfate tail gas desulfurization tower 4 is used as washing tower water for supplementing, so that the concentration of slurry at the upper part of the liquid accumulation device of the desulfurization tower 4 is always lower than that at the lower part, layered washing of the tail gas is realized (the higher the concentration of slurry is, the worse the washing and dust removing effects are), the tail gas is firstly washed by slurry with relatively higher concentration at the lower layer, the dust carrying amount in the tail gas is greatly reduced, and then the tail gas is washed by slurry with relatively lower concentration at the upper layer, so that dust in the tail gas can be further washed and removed.
The tail gas desulfurization tower 4 is arranged in a third building of the ammonium sulfate factory, the slurry replaced by the desulfurization tower 4 automatically flows back to a first building pit of the ammonium sulfate factory, a slurry conveying link is omitted in the middle, and the slurry discharged to the pit is pumped to the desulfurization tower 4 through a pump to be used as water replenishing, so that no wastewater treatment and discharge problems occur.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (3)
1. An ammonia desulfurization drying system tail gas treatment system which is characterized in that: the desulfurization device comprises a fluidized bed, a cyclone separator, a conveying pump and a desulfurization tower, wherein the waste gas output end of the fluidized bed is fixedly connected and communicated with the waste gas input end of the cyclone separator through a pipeline, the waste gas output end of the cyclone separator is fixedly connected and communicated with the input end of the conveying pump through a pipeline, the output end of the conveying pump is fixedly connected and communicated with the waste gas input end of the desulfurization tower through a pipeline, a plurality of demisters are fixedly installed in the desulfurization tower, one side of the desulfurization tower is fixedly connected with a flushing pipeline, one side of the desulfurization tower is fixedly connected with a first washing pipeline, a reflux pipeline and a second washing pipeline, one end of the first washing pipeline is fixedly connected with a third circulating pump, one end of the second washing pipeline is fixedly installed with a first circulating pump, the other end of the reflux pipeline is fixedly connected and communicated with the bottom of the desulfurization tower through a second circulating pump, the output end of the second circulating pump is fixedly connected with the third circulating pump through a discharge pipeline, and the output end of the third circulating pump is fixedly connected with the discharge pipeline.
2. The tail gas treatment system of the ammonia desulfurization drying system according to claim 1, wherein: the washing pipeline is a multi-way pipe, a plurality of ports of the washing pipeline extend into the desulfurizing tower respectively, and a washing nozzle is fixedly arranged at each of the plurality of ports of the washing pipeline.
3. The tail gas treatment system of the ammonia desulfurization drying system according to claim 1, wherein: the port junction fixedly connected with flange of first washing pipeline has inserted the retaining member jointly between two corresponding flange, and the retaining member is whole to be the ring form, and the sealing washer has all been cup jointed at the both ends of retaining member, two port departments of retaining member are echelonment, the top and the bottom of retaining member are divided by fixedly connected with connecting block, the equal fixedly connected with pin in both sides of every connecting block, annular even fixedly connected with a plurality of locking screw on the both sides outer wall of retaining member, a plurality of locking screw pass the screw hole on the corresponding flange respectively, equal spiro union has the nut on every locking screw.
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| CN202322894268.1U CN221156091U (en) | 2023-10-26 | 2023-10-26 | Tail gas treatment system of ammonia desulfurization drying system |
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| CN202322894268.1U CN221156091U (en) | 2023-10-26 | 2023-10-26 | Tail gas treatment system of ammonia desulfurization drying system |
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