CN112717616A - Defogging blade and defroster - Google Patents
Defogging blade and defroster Download PDFInfo
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- CN112717616A CN112717616A CN202011621542.2A CN202011621542A CN112717616A CN 112717616 A CN112717616 A CN 112717616A CN 202011621542 A CN202011621542 A CN 202011621542A CN 112717616 A CN112717616 A CN 112717616A
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- flue gas
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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
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
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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
Abstract
The invention discloses a demister blade, wherein an intermediate plate is arranged in an external absorption tower along the flow direction of flue gas; the lower plate and the upper plate are respectively connected to the middle plate through a first connecting plate and a second connecting plate along the flowing direction of the flue gas, and the lower plate and the upper plate are positioned on the same side of the middle plate; the blocking plate is arranged on the upper plate and is positioned at the same side with the middle plate; the lower plate, the first connecting plate and the middle plate are matched to form a first water retaining groove with an opening opposite to the flowing direction of the flue gas and a first water collecting groove with an opening in the same flowing direction of the flue gas; the upper plate, the second connecting plate and the middle plate are matched to form a second water retaining groove with an opening opposite to the flowing direction of the flue gas and a second water collecting groove with an opening in the same direction as the flowing direction of the flue gas; the blocking plate and the upper plate are matched to form a blocking groove with an opening opposite to the flowing direction of the flue gas. The invention is provided with the plurality of water retaining grooves and the water collecting grooves, effectively intercepts and collects fog drops carried in smoke, avoids secondary carrying phenomenon and obviously improves demisting efficiency.
Description
Technical Field
The invention belongs to the technical field of flue gas desulfurization, and particularly relates to a demisting blade and a demister.
Background
The demister is an important part of the desulfurization absorption tower. The defroster is installed in the absorption tower top, and the main effect is that liquid drop and the thick liquid separation of smuggleing secretly in the flue gas avoid the fog drop to get into the chimney and discharge in the atmosphere. The working mechanism is as follows: the fog drops that carry in the flue gas pass through the defroster with certain speed, because inertial action, the fog drops strikes on the defroster blade and is caught the collection, and the fog drops when the entrapment is more and more, falls after reaching certain weight, reentrants desulfurizing tower.
The traditional baffle plate demister comprises a flat plate demister and a ridge demister, fog drops with the particle size of more than 40 mu m can be removed, the removal rate of small fog drops with the particle size of 20-40 mu m is only 50%, and the removal rate of fog drops with the particle size of less than 20 mu m is lower.
The defroster catches the back with the droplet, and when flue gas velocity of flow was too high or the defroster blockked up seriously, the droplet can be carried secretly by the flue gas secondary and reentrant flue gas to increase the escape rate of droplet, influence defogging efficiency, and ordinary defroster does not possess the water collection function.
Therefore need research and develop a defroster blade and defroster that has water collecting function, in time catch, collect and discharge the droplet, effectively avoid taking place the secondary and smuggle the phenomenon secretly, guarantee the operating performance of defroster.
Disclosure of Invention
The technical purpose of the invention is to provide a demister blade, comprising:
the middle plate is arranged in the external absorption tower along the flowing direction of the flue gas;
the lower plate and the upper plate are respectively connected to the middle plate through a first connecting plate and a second connecting plate along the flowing direction of the flue gas, and the lower plate and the upper plate are positioned on the same side of the middle plate;
the blocking plate is arranged on the upper plate and is positioned at the same side with the middle plate;
the lower plate, the first connecting plate and the middle plate are matched to form a first water retaining groove with an opening opposite to the flowing direction of the flue gas and a first water collecting groove with an opening in the same flowing direction of the flue gas; the upper plate, the second connecting plate and the middle plate are matched to form a second water retaining groove with an opening opposite to the flowing direction of the flue gas and a second water collecting groove with an opening in the same direction as the flowing direction of the flue gas; the blocking plate and the upper plate are matched to form a blocking groove with an opening opposite to the flowing direction of the flue gas;
the notch in second water catch groove is towards first water catch bowl, and the notch in separation groove is towards the second water catch bowl for prevent that the droplet from being smugglied secretly the entering flue gas by the secondary.
The first water retaining groove comprises a first arc-shaped piece, a second arc-shaped piece and a first connecting plate;
the top end of the first arc-shaped piece is connected with one end of the first connecting plate, and the outer arc surface of the first arc-shaped piece is a water retaining arc surface;
the top end of the second arc-shaped piece is connected with the other end of the first connecting plate, and the inner arc surface of the second arc-shaped piece is a water retaining arc surface;
the lower plane of the first connecting plate is a water retaining plane;
the circle center of the first arc-shaped part and the circle center of the second arc-shaped part are positioned at the same side of the middle plate, and the first connecting plate and the smoke flowing direction are obliquely arranged at an acute angle.
Wherein, first water catch bowl includes: a third arcuate member, a first connecting plate and a first extension member;
the bottom end of the third arc-shaped piece is connected with the top end of the second arc-shaped piece, and the outer arc surface of the third arc-shaped piece is a water retaining arc surface;
the bottom end of the first extending piece is connected with the top end of the first arc-shaped piece, and the plane extending from the outer arc surface of the first arc-shaped piece of the first extending piece is a water blocking surface;
the circle center of the third arc-shaped part and the circle center of the second arc-shaped part are positioned on two sides of the middle plate, and the upper plane of the first connecting plate is a water collecting plane;
the first extension piece and the first arc-shaped piece form a lower plate.
The second water retaining groove comprises a third arc-shaped piece, a fourth arc-shaped piece and a second connecting plate;
the top end of the third arc-shaped piece is connected with one end of the second connecting plate, and the outer arc surface of the third arc-shaped piece is a water retaining arc surface;
the top end of the fourth arc-shaped piece is connected with the other end of the second connecting plate, and the inner arc surface of the fourth arc-shaped piece is a water retaining arc surface;
the lower plane of the second connecting plate is a water retaining plane;
the circle center of the third arc-shaped part and the circle center of the fourth arc-shaped part are positioned at the same side of the middle plate, and the second connecting plate is obliquely arranged at an acute angle with the flow direction of the flue gas.
The second water collecting tank comprises a fifth arc-shaped piece, a second connecting plate and a second extending piece;
the bottom end of the fifth arc-shaped part is connected with the top end of the fourth arc-shaped part, and the outer arc surface of the fifth arc-shaped part is a water retaining arc surface;
the bottom end of the second extending piece is connected with the top end of the third arc-shaped piece, and the plane extending from the outer arc surface of the third arc-shaped piece of the second extending piece is a water blocking surface;
the circle center of the fifth arc-shaped part and the circle center of the fourth arc-shaped part are positioned on two sides of the middle plate, and the upper plane of the second connecting plate is a water collecting plane;
the second arc-shaped part, the third arc-shaped part and the second extending part form a middle plate, and the fourth arc-shaped part and the fifth arc-shaped part form an upper plate.
Wherein, the height of the defogging blade is 150 to 500mm, and the material of the defogging blade is alloy or polypropylene.
Further preferably, the waste water treatment device further comprises a first drain pipe and a second drain pipe, wherein the first drain pipe is connected with the first water collecting tank and used for discharging waste liquid in the first water collecting tank, and the second drain pipe is connected with the second water collecting tank and used for discharging waste liquid in the second water collecting tank.
A demister comprising a plurality of demister blades according to any one of claims 1 to 7 arranged side by side, adjacent demister blades forming flue gas channels and having a spacing of 40 to 100 mm.
Further preferably, the device also comprises washing parts respectively arranged above and below the flue gas channel, and the washing parts are used for cleaning the defogging blades.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
1) the invention is provided with a first water retaining groove and a second water retaining groove. When the flue gas got into defroster blade inside, on the droplet collided the blade under inertial effect, water retaining portion can be effectual with the droplet interception, improve defogging efficiency. Meanwhile, the left side of the first water retaining groove and the right side of the second water retaining groove are respectively provided with a second arc-shaped part and a fourth arc-shaped part with hooks, so that the fog drops can be prevented from being secondarily entrained to enter smoke. The fog drops intercepted by the first water retaining groove directly flow back to the inside of the absorption tower, and the fog drops intercepted by the second water retaining groove are drained after being guided to the first water collecting groove.
2) The demister blades are provided with a first water collecting tank and a second water collecting tank. The fog drops intercepted by the second water retaining groove are guided to the first water collecting groove to be discharged; and a second water collecting tank is arranged near the outlet of the demister blade, and a barrier plate with a hook is arranged at the top of the demister blade, so that the finally escaping fog drops can be intercepted and drained to the second water collecting tank and then discharged.
3) The device provided by the invention can effectively intercept and collect fog drops carried in the flue gas, avoid the secondary carrying phenomenon and obviously improve the demisting efficiency.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
FIG. 1 is a schematic structural view of a demister blade according to an embodiment of the invention;
FIG. 2 is a facing view of a mist eliminator in accordance with an embodiment of the present invention;
FIG. 3 is a side view of a mist eliminator in accordance with an embodiment of the present invention.
Description of reference numerals:
1: an absorption tower; 2: a defogging blade; 201: a first water retaining groove; 202: a first water collection tank; 203: a second water retaining groove; 204: a second water collection tank; 205: a blocking groove; 21: a lower plate; 211: a first arcuate member; 212: a first extension member; 22: a middle plate; 221: a second arcuate member; 222: a third arcuate member; 223: a second extension member; 23: an upper plate; 231: a fourth arcuate member; 232: a fifth arcuate member; 24: a barrier; 25: a first connecting plate; 26: a second connecting plate; 3: and a washing part.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The demister blade 2 and the demister according to the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.
Example 1
Referring to fig. 1, the present embodiment provides a defogging blade 2, and will now be described in detail:
the defogging blade 2 includes: an intermediate plate 22 disposed along the flow direction of the flue gas in the absorption tower 1, and a lower plate 21 and an upper plate 23 connected to the intermediate plate 22. The lower plate 21 and the upper plate 23 are connected to the middle plate 22 through a first connecting plate 25 and a second connecting plate 26 respectively along the flowing direction of the flue gas, and the lower plate 21 and the upper plate 23 are positioned on the same side of the middle plate 22; a baffle plate 24 is also provided on the upper plate 23 and on the same side as the intermediate plate 22. Specifically, the lower plate 21, the first connecting plate 25 and the intermediate plate 22 cooperate to form a first water-retaining groove 201 with an opening opposite to the flow direction of the flue gas and a first water-collecting groove 202 with an opening in the same direction as the flow direction of the flue gas; the upper plate 23, the second connecting plate 26 and the middle plate 22 are matched to form a second water catch tank 203 with an opening opposite to the flowing direction of the flue gas and a second water catch tank 204 with an opening in the same direction as the flowing direction of the flue gas; the baffle plate 24 and the upper plate 23 are matched to form a baffle groove 205 with an opening opposite to the flowing direction of the flue gas; the notch of the second water blocking groove 203 faces the first water collecting groove 202, and the notch of the blocking groove 205 faces the second water collecting groove 204, so as to prevent the fog drops from being secondarily entrained into the smoke.
The various parts of the embodiment will now be described in the direction of flow of the flue gas:
referring to fig. 1, firstly, as the flue gas rises and meets the first water retaining groove 201, the mist drops collide with the first water retaining groove 201 under the action of inertia to realize interception and capture of the mist drops, and the intercepted mist drops directly flow back and drop to the bottom of the absorption tower 1. The first water retaining groove 201 includes: first arc 211, second arc 221 and first connecting plate 25, wherein, first arc 211 is a part of hypoplastron 21, and second arc 221 is a part of intermediate plate 22, split for the convenience of description. First arcuate member 211, second arcuate member 221 and first connector plate 25 are each plate-type structures, all shown in a side view in fig. 1.
The top end of the first arc-shaped piece 211 is fixedly connected with one end of the first connecting plate 25, the outer arc surface of the first arc-shaped piece 211 is used as the water retaining arc surface of the first water retaining groove 201 and used for blocking the fog drops, and the inner arc surface of the first arc-shaped piece 211 is used as the drainage surface of the fog drops falling from the second water retaining groove 203 and used for guiding and dropping the fog drops to the bottom of the absorption tower 1.
The top end of the second arc-shaped piece 221 is fixedly connected with the other end of the first connecting plate 25, the inner arc surface of the second arc-shaped piece 221 is a water blocking arc surface of the first water blocking groove 201 and used for blocking fog drops, the bottom end of the second arc-shaped piece 221 is designed in a hook shape, the caught fog drops are prevented from being secondarily entrained to enter smoke, and the outer arc surface of the second arc-shaped piece can be used as a flow guide surface of part of falling fog drops of the blocking groove 205 and used for guiding and dropping the fog drops to the bottom of the absorption tower 1. The circle center of the first arc-shaped part 211 and the circle center of the second arc-shaped part 221 are positioned at the same side of the middle plate 22, i.e. the arc bending directions of the two parts are consistent.
The downward plane of the first connecting plate 25 is a water-retaining plane for blocking the mist droplets.
Referring to fig. 1, next up the flue gas is a first catch basin 202 for receiving the falling mist droplets that are blocked by a second catch basin 203. Specifically, the first water collection tank 202 includes: a third arc 222, a first connecting plate 25 and a first extending member 212, wherein the third arc 222 is a part of the middle plate 22, and the first extending member 212 is a part of the lower plate 21, which are separated for convenience of description. Similarly, the third arcuate member 222 and the first extension member 212 are both plate-type structures, both shown in a side view in fig. 1.
The bottom end of the third arc-shaped piece 222 is connected with the top end of the second arc-shaped piece 221 and one end of the first connecting plate 25, and the outer arc surface of the third arc-shaped piece 222 is a water-retaining arc surface and used for blocking fog drops. The centers of the third arc-shaped part 222 and the second arc-shaped part 221 are located at two sides of the middle plate 22, i.e. the bending directions of the third arc-shaped part 222 and the second arc-shaped part 221 are opposite.
The bottom end of the first extending piece 212 is connected to the top end of the first arc-shaped piece 211 and the other end of the first connecting plate 25, the extending surface of the outer arc surface of the first arc-shaped piece 211 of the first extending piece 212 is a water blocking surface and serves as the side wall of the first water collecting tank 202, and the first extending piece 212 and the first arc-shaped piece 211 form the lower plate 21. In addition, a first drain pipe (not shown) is connected to first water collection tank 202 and disposed near the bottom of first water collection tank 202 for draining waste liquid from first water collection tank 202.
The plane of first connecting plate 25 up is as the tank bottom of first water catch bowl 202, and first connecting plate 25 is acute angle slope setting with the flue gas flow direction, can store more liquid, improves the water-collecting function, can also make things convenient for first drain pipe to discharge the waste liquid.
Referring to fig. 1, continuing up the flue gas is a second catch basin 203, the second catch basin 203 comprising a third arc-shaped member 222, a fourth arc-shaped member 231 and a second connecting plate 26, wherein the fourth arc-shaped member 231 is a part of the upper plate 23, split for ease of description. Similarly, the fourth arcuate member 231 and the second connecting plate 26 are both plate-shaped structures, both of which are shown in a side view in fig. 1.
The top end of the third arc-shaped piece 222 is connected with one end of the second connecting plate 26, and the extrados of the third arc-shaped piece 222 is a water retaining cambered surface. The top end of the fourth arc-shaped part 231 is connected with the other end of the second connecting plate 26, the inner arc surface of the fourth arc-shaped part 231 is a water-retaining arc surface, the bottom end of the fourth arc-shaped part 231 is in a hook-shaped design, the trapped fog drops are prevented from being secondarily entrained into smoke, and the outer arc surface of the fourth arc-shaped part 231 can be used as a drainage surface for guiding the fog drops to slide downwards. The center of the third arcuate member 222 and the center of the fourth arcuate member 231 are located on the same side of the intermediate plate 22.
The lower plane of the second connecting plate 26 is a water retaining plane, which is the top of the second water retaining groove 203. The second water retaining groove 203 is opened opposite to the first water collecting groove 202, and the fog drops fall to the first water collecting groove 202 along the third arc-shaped piece 222 or the fourth arc-shaped piece 231 and are discharged.
Referring to fig. 1, continuing upward along the flue gas is a second water collection trough 204, specifically, second water collection trough 204 includes a fifth arcuate member 232, second connecting plate 26, and second extension 223, wherein fifth arcuate member 232 is a portion of upper plate 23 and second extension 223 is a portion of intermediate plate 22. Likewise, the fifth arcuate member 232 and the second extension member 223 are both plate-type structures, both of which are shown in a side view in FIG. 1.
The bottom of fifth arc 232 links to each other with the top of fourth arc 231, and the extrados of fifth arc 232 is the manger plate cambered surface for block the droplet in the flue gas, and its intrados also can be regarded as the manger plate cambered surface, and the droplet that blocks flows to the extrados of fourth arc 231 along the intrados. The upper plate 23 is composed of a fifth arc-shaped part 232 and a fourth arc-shaped part 231, and the circle center of the fifth arc-shaped part 232 and the circle center of the fourth arc-shaped part 231 are located on two sides of the middle plate 22.
The bottom end of the second extending member 223 is connected to the top end of the third arc-shaped member 222, and the plane extending from the outer arc surface of the third arc-shaped member 222 of the second extending member 223 is a water blocking surface and serves as the side wall of the second water collecting tank 204. The second extension 223, the second arc 221 and the third arc 222 together form the middle plate 22.
The upper plane of the second connecting plate 26 is a water collecting plane, that is, the bottom of the second water collecting tank 204, and the second connecting plate 26 is inclined at an acute angle with the flow direction of the flue gas, so that more liquid can be stored, and the water collecting function is improved. In addition, the device further comprises a second drain pipe (not shown in the figure), wherein the second drain pipe is connected with the second water collecting tank 204 and is arranged at the position, close to the tank bottom, of the second water collecting tank 204 and used for discharging waste liquid in the second water collecting tank 204, and the second drain pipe can be convenient to discharge the waste liquid through the inclined arrangement.
Further, still including locating the baffling board 24 of the extrados of fifth arc 232, it constitutes the downward baffling groove 205 of notch with fifth arc 232 for block last fog droplet in the flue gas, and the extrados drainage to second water catch bowl 204 of the intrados of baffling board 24 or fifth arc 232 of fog droplet that will block, and then discharge.
Referring to fig. 1, in the embodiment, the overall height of the defogging blade 2 is 150 to 500mm, and the material of the defogging blade 2 is made of alloy or polypropylene.
Example 2
Referring to fig. 2 and 3, the present embodiment provides a demister based on embodiment 1, the demister includes a plurality of demisting blades 2 arranged side by side, and flue gas demisting channels are formed between adjacent demisting blades 2 and the distance between adjacent demisting blades 2 is 40 to 100 mm. Preferably, still including locating 2 tops of defogging blade and the washing portion 3 of below respectively, washing portion 3 is used for wasing the gypsum thick liquid of defogging blade 2, keeps the blade clean, guarantees the defroster service behavior.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (9)
1. A demister blade comprising:
the middle plate is arranged in the external absorption tower along the flowing direction of the flue gas;
the lower plate and the upper plate are respectively connected to the middle plate through a first connecting plate and a second connecting plate along the flowing direction of flue gas, and the lower plate and the upper plate are positioned on the same side of the middle plate;
the blocking plate is arranged on the upper plate and is positioned at the same side with the middle plate;
the lower plate, the first connecting plate and the middle plate are matched to form a first water retaining groove with an opening opposite to the flowing direction of the flue gas and a first water collecting groove with an opening in the same direction as the flowing direction of the flue gas; the upper plate, the second connecting plate and the middle plate are matched to form a second water retaining groove with an opening opposite to the flowing direction of the flue gas and a second water collecting groove with an opening in the same direction as the flowing direction of the flue gas; the blocking plate and the upper plate are matched to form a blocking groove with an opening opposite to the flowing direction of the flue gas;
the notch of second water catch groove is towards first water catch bowl, the notch of separation groove is towards the second water catch bowl for prevent that the droplet from getting into the flue gas by the secondary smuggleing secretly.
2. The demister blade of claim 1, wherein said first water retaining slot comprises a first arcuate member, a second arcuate member, and said first connecting plate;
the top end of the first arc-shaped piece is connected with one end of the first connecting plate, and the outer arc surface of the first arc-shaped piece is a water retaining arc surface;
the top end of the second arc-shaped piece is connected with the other end of the first connecting plate, and the inner arc surface of the second arc-shaped piece is a water retaining arc surface;
the lower plane of the first connecting plate is a water retaining plane;
the circle center of the first arc-shaped part and the circle center of the second arc-shaped part are located on the same side of the middle plate, and the first connecting plate is obliquely arranged at an acute angle with the flowing direction of the flue gas.
3. A demister blade according to claim 2, wherein said first water collection tank comprises: a third arcuate member, the first connecting plate and a first extension member;
the bottom end of the third arc-shaped part is connected with the top end of the second arc-shaped part, and the outer arc surface of the third arc-shaped part is a water retaining arc surface;
the bottom end of the first extending piece is connected with the top end of the first arc-shaped piece, and the plane of the first extending piece, which extends from the outer arc surface of the first arc-shaped piece, is a water blocking surface;
the circle center of the third arc-shaped part and the circle center of the second arc-shaped part are positioned on two sides of the middle plate, and the upper plane of the first connecting plate is a water collecting plane;
the first extension piece and the first arc-shaped piece constitute a lower plate.
4. The demister blade of claim 3, wherein said second water catch basin comprises said third arcuate member, a fourth arcuate member, and a second connecting plate;
the top end of the third arc-shaped piece is connected with one end of the second connecting plate, and the outer arc surface of the third arc-shaped piece is a water retaining arc surface;
the top end of the fourth arc-shaped part is connected with the other end of the second connecting plate, and the inner arc surface of the fourth arc-shaped part is a water retaining arc surface;
the lower plane of the second connecting plate is a water retaining plane;
the circle center of the third arc-shaped part and the circle center of the fourth arc-shaped part are located on the same side of the middle plate, and the second connecting plate is obliquely arranged at an acute angle with the flowing direction of the flue gas.
5. A demister blade according to claim 4, wherein said second water collection trough comprises a fifth arcuate piece, said second connecting plate and a second extension piece;
the bottom end of the fifth arc-shaped part is connected with the top end of the fourth arc-shaped part, and the outer arc surface of the fifth arc-shaped part is a water retaining arc surface;
the bottom end of the second extending piece is connected with the top end of the third arc-shaped piece, and the plane of the second extending piece, which extends from the outer arc surface of the third arc-shaped piece, is a water blocking surface;
the circle center of the fifth arc-shaped part and the circle center of the fourth arc-shaped part are positioned on two sides of the middle plate, and the upper plane of the second connecting plate is a water collecting plane;
the second arc-shaped part, the third arc-shaped part and the second extending part form the middle plate, and the fourth arc-shaped part and the fifth arc-shaped part form the upper plate.
6. Demister blade according to any one of claims 1-5, wherein the height of the demister blade is 150-500 mm, and the demister blade is made of alloy or polypropylene.
7. The demister blade of claim 6, further comprising a first drain pipe connected to said first collection tank for draining waste liquid from said first collection tank and a second drain pipe connected to said second collection tank for draining waste liquid from said second collection tank.
8. A demister comprising a plurality of demister blades according to any one of claims 1 to 7 arranged side by side, adjacent said demister blades forming flue gas channels and having a spacing of 40 to 100 mm.
9. The demister for an absorption tower as set forth in claim 8, further comprising washing sections provided above and below said flue gas channel, respectively, for cleaning said demister blades.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011621542.2A CN112717616B (en) | 2020-12-30 | 2020-12-30 | Defogging blade and defroster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011621542.2A CN112717616B (en) | 2020-12-30 | 2020-12-30 | Defogging blade and defroster |
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| Publication Number | Publication Date |
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| CN112717616A true CN112717616A (en) | 2021-04-30 |
| CN112717616B CN112717616B (en) | 2023-06-02 |
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| CN202011621542.2A Active CN112717616B (en) | 2020-12-30 | 2020-12-30 | Defogging blade and defroster |
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| CN203935713U (en) * | 2014-07-22 | 2014-11-12 | 北京化工大学 | A kind of demister blade and demister |
| CN204122243U (en) * | 2014-08-01 | 2015-01-28 | 上海瑞亚安环保设备有限公司 | A kind of demister of many curved strip hook blade and application thereof |
| CN204522519U (en) * | 2015-03-17 | 2015-08-05 | 德梅斯特(上海)环保科技有限公司 | The hyperfine demister of a kind of horizontal gas flow |
| WO2017097185A1 (en) * | 2015-12-08 | 2017-06-15 | 江苏揽山环境科技股份有限公司 | Demister |
| CN107281819A (en) * | 2017-07-03 | 2017-10-24 | 合肥天翔环境工程有限公司 | A kind of High efficiency baffle plate formula demister |
| CN209985050U (en) * | 2019-05-13 | 2020-01-24 | 江苏普立尔环保科技有限公司 | High-efficient defroster of glass steel |
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| CN112717616B (en) | 2023-06-02 |
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