CN110538554A - Dedusting and demisting desulfurization tower - Google Patents
Dedusting and demisting desulfurization tower Download PDFInfo
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- CN110538554A CN110538554A CN201910951199.9A CN201910951199A CN110538554A CN 110538554 A CN110538554 A CN 110538554A CN 201910951199 A CN201910951199 A CN 201910951199A CN 110538554 A CN110538554 A CN 110538554A
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- demister
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
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- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a dedusting and demisting desulfurization tower which comprises a tower body, a flue gas uniform distribution layer, a flow dividing device, a spraying layer, a first demister, a second demister, a dedusting assembly, a water collecting and draining groove, a water outlet pipe and a demisting cylinder, wherein the water collecting and draining groove is arranged on the tower body; the flue gas uniform distribution layer, the flow dividing device, the spraying layer, the first demister and the second demister are sequentially arranged in the tower body from bottom to top respectively, and the dust removal assembly is arranged in the tower body, positioned above the second demister and positioned below the cone cylinder part; the invention improves the desulfurization efficiency, shortens the treatment time, greatly reduces the dust content in the discharged flue gas and reduces the manufacturing cost.
Description
Technical Field
The invention relates to a dedusting and demisting desulfurization tower.
Background
At present, the problem of environmental pollution is increasingly serious, and the requirement of each industry on environmental protection indexes is more and more strict, however, part of cement enterprises are limited by raw materials, and the sulfur content in the discharged flue gas is higher, so that the flue gas needs to be desulfurized.
At present, two common desulfurization methods are mainly used, firstly, a wet desulfurization technology is adopted, namely kiln ash or raw material powder is adopted as a desulfurization reducing agent, although the acquisition is convenient, the desulfurization efficiency is high, and the cost is low, the kiln ash or the raw material powder has more residues in the discharged flue gas, the residual kiln ash or the raw material powder can slowly fall down to form a gypsum rain phenomenon, the gypsum rain phenomenon can cause certain damage to equipment, facilities and buildings in a settling area, and can also influence the production and the life of surrounding residents, and the kiln ash or the raw material powder can easily agglomerate when flowing through a demister, so that the demister is blocked, frequent shutdown and cleaning are needed, the production efficiency is reduced, and the production cost is increased, so that few manufacturers adopting the method are provided.
Secondly, by adopting a dry desulfurization technology, most manufacturers adopt the method, namely powder is added into raw materials, although the effect is better, the phenomenon of 'gypsum rain' is avoided, the desulfurization efficiency is low, the time consumption is long, and in order to prolong the treatment process, the height of a tower body needs to be increased, so that the manufacturing cost is higher, and the method needs to be further improved.
Disclosure of Invention
In view of the current situation of the prior art, the invention aims to provide a dedusting and demisting desulfurization tower which improves desulfurization efficiency, shortens treatment time and reduces manufacturing cost.
The technical scheme adopted by the invention for solving the technical problems is as follows: a dedusting and demisting desulfurization tower comprises a tower body, a flue gas uniform cloth layer, a flow dividing device, a spraying layer, a first demister, a second demister, a dedusting component, a water collecting and draining groove, a water outlet pipe and a demisting cylinder, and is characterized in that a cone cylinder part is formed at the upper end of the tower body, a bent pipe part which is distributed in an inclined manner is formed upwards at an upper end opening of the cone cylinder part, a chimney part which is distributed vertically is formed upwards at an upper end opening of the bent pipe part, a lower end opening of the demisting cylinder is fixed at an upper end opening of the chimney part, the flue gas uniform cloth layer, the flow dividing device, the spraying layer, the first demister and the second demister are respectively arranged inside the tower body from bottom to top in sequence, the dedusting component is arranged inside the tower body, is positioned above the second demister and below the cone cylinder part, the water collecting and draining groove is fixed at the bottom of the inner side of the, the bottom of the water collecting and draining groove is connected with water outlet pipes which are vertically distributed; a circulation hole is formed in the center of the flow dividing device, a conical ring is formed upwards on the upper side of the flow dividing device, and a plurality of arc-shaped convex strips which are distributed at equal angles along the circumferential direction are formed upwards on the upper side of the conical ring; the dust removal assembly comprises a plurality of dust removal combinations which are vertically stacked, each dust removal combination comprises two condensation coils which are symmetrically distributed, and a plurality of cyclone blades which are distributed at equal angles along the circumferential direction are formed at an opening at the upper end of the demisting cylinder.
preferably, a first through hole combination and two second through hole combinations which are distributed symmetrically are arranged in the smoke uniform distribution layer, the two second through hole combinations are respectively arranged on two sides of the first through hole combination, the first through hole combination comprises a plurality of first through holes which are distributed at equal intervals, and each second through hole combination comprises a plurality of second through holes which are distributed at equal intervals.
Preferably, two third through hole combinations which are symmetrically and vertically distributed, two fourth through hole combinations which are symmetrically and vertically distributed and two fifth through hole combinations which are symmetrically and vertically distributed are further arranged in the smoke gas distributing layer, the two fifth through hole combinations are respectively arranged at the outer sides of the two third through hole combinations, and the two fourth through hole combinations are respectively arranged at the outer sides of the two third through hole combinations and the inner sides of the two fifth through hole combinations.
Preferably, each third through hole combination comprises a plurality of third through holes distributed at equal intervals, each fourth through hole combination comprises a plurality of fourth through holes distributed at equal intervals, and each fifth through hole combination comprises a plurality of fifth through holes distributed at equal intervals.
Preferably, the first demister is a tubular demister, and the second demister is a plate-type demister or a ridge-type demister.
Compared with the prior art, the invention has the advantages that: on the basis of adopting a dry desulfurization technology, the flue gas is uniformly divided into a plurality of branches by virtue of the flue gas uniform cloth layer, and the flow velocity of the flue gas is accelerated by virtue of the flow dividing device so as to ensure that the reaction is fully and quickly carried out, thereby improving the desulfurization efficiency and shortening the treatment time; the large-particle dust, the small-particle dust and most of fog drops in the flue gas are effectively intercepted by means of the first demister and the second demister, the dust content in the discharged flue gas is greatly reduced, the tower body does not need to be heightened, and therefore the manufacturing cost is reduced.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a structural diagram of a flue gas equalizing layer of the present invention;
FIG. 3 is a block diagram of the shunt device of the present invention;
FIG. 4 is a block diagram of the dust extraction assembly of the present invention;
fig. 5 is a structural view of the defogging cartridge of the present invention.
Detailed Description
As shown in fig. 1 to 5, a dedusting and demisting desulfurization tower comprises a tower body 1, a flue gas uniform distribution layer 2, a flow dividing device 3, a spraying layer 4, a first demister 5, a second demister 6, a dedusting assembly, a water collecting and draining tank 8, a water outlet pipe 10 and a demisting cylinder 9; a cone-shaped cylinder part 11 is formed at the upper end of the tower body 1, an inclined bent pipe part 12 is formed upwards at the upper end opening of the cone-shaped cylinder part 11, a chimney part 13 which is vertically distributed is formed upwards at the upper end opening of the bent pipe part 12, a lower end opening of a demisting cylinder 9 is fixed at the upper end opening of the chimney part 13, a flue gas uniform cloth layer 2, a flow divider 3, a spraying layer 4, a first demister 5 and a second demister 6 are sequentially arranged inside the tower body 1 from bottom to top, a dedusting assembly is arranged inside the tower body 1, is positioned above the second demister 6 and below the cone-shaped cylinder part 11, a water collecting and draining groove 8 is fixed at the bottom of the inner side of the bent pipe part 12 and is mutually communicated with the inside of the bent pipe part 12, and the bottom of the water collecting and draining groove; the flue gas uniform distribution layer 2 is provided with a first through hole combination which is transversely distributed and two second through hole combinations which are symmetrically distributed, the two second through hole combinations are respectively arranged at two sides of the first through hole combination, the first through hole combination comprises a plurality of first through holes 21 which are equidistantly distributed, each second through hole combination comprises a plurality of second through holes 22 which are equidistantly distributed, the flue gas uniform distribution layer 2 is also provided with two third through hole combinations which are symmetrically and vertically distributed, two fourth through hole combinations which are symmetrically and vertically distributed and two fifth through hole combinations which are symmetrically and vertically distributed, the two fifth through hole combinations are respectively arranged at the outer sides of the two third through hole combinations, the two fourth through hole combinations are respectively arranged at the outer sides of the two third through hole combinations and the inner sides of the two fifth through hole combinations, each third through hole combination comprises a plurality of third through holes 23 which are equidistantly distributed, each fourth through hole combination comprises a plurality of fourth through holes 24 which are equidistantly distributed, each fifth through hole combination comprises a plurality of fifth through holes 25 which are distributed at equal intervals; a circulation hole 31 is formed in the center of the flow dividing device 3, a conical ring 32 is formed upwards on the upper side of the flow dividing device 3, and a plurality of arc-shaped convex strips 33 which are distributed at equal angles along the circumferential direction are formed upwards on the upper side of the conical ring 32; the dedusting assembly comprises a plurality of dedusting combinations which are vertically overlapped, each dedusting combination comprises two symmetrically-distributed condensing coils 7, and a plurality of cyclone blades 91 which are distributed at equal angles along the circumferential direction are formed at an opening at the upper end of the demisting cylinder 9; the first demister 5 is a tubular demister, and the second demister 6 is a plate-type or ridge-type demister.
The working principle is as follows: the desulfurized flue gas enters the tower body 1 from the bottom of the tower body 1, and is firstly upwards circulated and then uniformly divided into a plurality of flue gas branches after passing through each first through hole 21, each second through hole 22, each third through hole 23, each fourth through hole 24 and each fifth through hole 25 on the flue gas distributing layer 2, then the plurality of flue gas branches are simultaneously upwards circulated and gradually converged in the circulation holes 31, and then pass through the circulation holes 31, meanwhile, the spraying layers 4 downwards spray slurry which is fully mixed and reacted with the converged flue gas, the unreacted and dripped slurry falls onto the flow dividing device 3 and obliquely flows downwards along a gap between any two adjacent arc-shaped raised lines 33, and part of the flue gas branches rising along the tower wall of the tower body 1 are blocked by the lower side edge of the flow dividing device 3 and are firstly converged towards the circulation holes 31 and then flow upwards through the circulation holes 31, so that the flow rate of the converged flue gas is improved; the reacted flue gas continuously rises and sequentially passes through a first demister 5 and a second demister 6, the first demister 5 can intercept large-particle dust carried in the flue gas, and the second demister 6 can intercept small-particle dust and most of fog drops carried in the flue gas; then, the flue gas continuously rises and sequentially passes through each dust removal combination in the dust removal assembly upwards, the flue gas is cooled and begins to be liquefied when contacting the outside of the condensing coil 7 in each dust removal combination, and then enters the bent pipe part 12 through the conical pipe part 11, water vapor in the flue gas is liquefied in the bent pipe part 12, and dust in the flue gas is adsorbed by liquefied water drops; the flue gas upwards enters the demisting cylinder 9 through the chimney part 13 and upwards flows through the plurality of swirl vanes 91, and the fog drops in the flue gas are intercepted again; the water droplets liquefied in the elbow part 12 flow down obliquely along the lower inner wall of the elbow part 12, further enter the water collecting and draining tank 8, and finally are discharged through the water outlet pipe 10.
At present, two common desulfurization methods are mainly used, firstly, a wet desulfurization technology is adopted, namely kiln ash or raw material powder is adopted as a desulfurization reducing agent, although the acquisition is convenient, the desulfurization efficiency is high, and the cost is low, the kiln ash or the raw material powder has more residues in the discharged flue gas, the residual kiln ash or the raw material powder can slowly fall down to form a gypsum rain phenomenon, the gypsum rain phenomenon can cause certain damage to equipment, facilities and buildings in a settling area, and can also influence the production and the life of surrounding residents, and the kiln ash or the raw material powder can easily agglomerate when flowing through a demister, so that the demister is blocked, frequent shutdown and cleaning are needed, the production efficiency is reduced, and the production cost is increased, so that few manufacturers adopting the method are provided; secondly, by adopting a dry desulfurization technology, most manufacturers adopt the method, namely powder is added into raw materials, the effect is good, the gypsum rain phenomenon is avoided, the desulfurization efficiency is low, the consumed time is long, and in order to prolong the treatment process, the height of the tower body 1 needs to be increased, so that the manufacturing cost is high; on the basis of adopting a dry desulfurization technology, the flue gas is uniformly divided into a plurality of branches by means of the flue gas distributing layer 2, and the flow velocity of the flue gas is accelerated by means of the flow dividing device 3 so as to ensure that the reaction is fully and quickly carried out, thereby improving the desulfurization efficiency and shortening the treatment time; large particle dust, small particle dust and most of fogdrops in the flue gas are effectively intercepted by means of the first demister 5 and the second demister 6, the dust content in the discharged flue gas is greatly reduced, the tower body 1 does not need to be heightened, and therefore the manufacturing cost is reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A dedusting and demisting desulfurization tower comprises a tower body, a flue gas uniform cloth layer, a flow dividing device, a spraying layer, a first demister, a second demister, a dedusting component, a water collecting and draining groove, a water outlet pipe and a demisting cylinder, and is characterized in that a cone cylinder part is formed at the upper end of the tower body, a bent pipe part which is distributed in an inclined manner is formed upwards at an upper end opening of the cone cylinder part, a chimney part which is distributed vertically is formed upwards at an upper end opening of the bent pipe part, a lower end opening of the demisting cylinder is fixed at an upper end opening of the chimney part, the flue gas uniform cloth layer, the flow dividing device, the spraying layer, the first demister and the second demister are respectively arranged inside the tower body from bottom to top in sequence, the dedusting component is arranged inside the tower body, is positioned above the second demister and below the cone cylinder part, the water collecting and draining groove is fixed at the bottom of the inner side of the, the bottom of the water collecting and draining groove is connected with water outlet pipes which are vertically distributed; a circulation hole is formed in the center of the flow dividing device, a conical ring is formed upwards on the upper side of the flow dividing device, and a plurality of arc-shaped convex strips which are distributed at equal angles along the circumferential direction are formed upwards on the upper side of the conical ring; the dust removal assembly comprises a plurality of dust removal combinations which are vertically stacked, each dust removal combination comprises two condensation coils which are symmetrically distributed, and a plurality of cyclone blades which are distributed at equal angles along the circumferential direction are formed at an opening at the upper end of the demisting cylinder.
2. The tower of claim 1, wherein the uniform flue gas distribution layer is provided with a first through hole assembly and two second through hole assemblies, the first through hole assembly and the second through hole assemblies are arranged on two sides of the first through hole assembly, the first through hole assembly comprises a plurality of first through holes, the first through holes are distributed at equal intervals, and each second through hole assembly comprises a plurality of second through holes, the second through holes are distributed at equal intervals.
3. The dust-removing defogging desulfurization tower according to claim 2, wherein two third through hole combinations, two fourth through hole combinations and two fifth through hole combinations are further formed in the flue gas equalization cloth layer, the third through hole combinations are symmetrically and vertically distributed, the fourth through hole combinations are symmetrically and vertically distributed, the fifth through hole combinations are respectively formed in the outer sides of the two third through hole combinations, and the fourth through hole combinations are respectively formed in the outer sides of the two third through hole combinations and the inner sides of the two fifth through hole combinations.
4. a dust-removing, mist-removing and desulfurizing tower apparatus as claimed in claim 3, wherein each of said third through hole combinations comprises a plurality of third through holes distributed at equal intervals, each of said fourth through hole combinations comprises a plurality of fourth through holes distributed at equal intervals, and each of said fifth through hole combinations comprises a plurality of fifth through holes distributed at equal intervals.
5. The tower of claim 1, wherein the first demister is a tubular demister and the second demister is a plate demister or a ridge demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910951199.9A CN110538554A (en) | 2019-10-08 | 2019-10-08 | Dedusting and demisting desulfurization tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910951199.9A CN110538554A (en) | 2019-10-08 | 2019-10-08 | Dedusting and demisting desulfurization tower |
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| Publication Number | Publication Date |
|---|---|
| CN110538554A true CN110538554A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910951199.9A Withdrawn CN110538554A (en) | 2019-10-08 | 2019-10-08 | Dedusting and demisting desulfurization tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036405A (en) * | 2019-12-10 | 2020-04-21 | 何学苏 | Wet electric dust collector |
-
2019
- 2019-10-08 CN CN201910951199.9A patent/CN110538554A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036405A (en) * | 2019-12-10 | 2020-04-21 | 何学苏 | Wet electric dust collector |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191206 |
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| WW01 | Invention patent application withdrawn after publication |