CN110585881A - Flue gas desulfurization device - Google Patents
Flue gas desulfurization device Download PDFInfo
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- CN110585881A CN110585881A CN201910974181.0A CN201910974181A CN110585881A CN 110585881 A CN110585881 A CN 110585881A CN 201910974181 A CN201910974181 A CN 201910974181A CN 110585881 A CN110585881 A CN 110585881A
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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
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
Abstract
The invention discloses a flue gas desulfurization device, comprising: the device comprises a desulfurization tower body, a wet type filtering assembly arranged inside the desulfurization tower body, a spraying assembly used for supplying absorption liquid into the desulfurization tower body, and a gas distribution assembly used for conveying flue gas to be treated into the desulfurization tower body; wet-type filtering component includes along a plurality of box filter of stack setting of desulfurizing tower body's direction of height, box filter is the shape of falling trapezoidal form, and its inside cavity that has the shape of falling trapezoidal form, just box filter is last to have the microporous construction that runs through its body of intensive setting to the confession flue gas passes through. According to the flue gas desulfurization device, the box-type filter is arranged, so that the flue gas can be fully contacted with the absorption liquid, the desulfurization effect of the flue gas is effectively improved, and on the other hand, the spirally-rising air flow is formed through the air distribution assembly, so that the desulfurization effect can be further improved, and the desulfurization efficiency is improved.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a flue gas desulfurization device.
Background
With the economic development and social progress of China, the environmental protection problem is increasingly serious, the current problem of acid rain is an important problem for national prevention and treatment, and the main component of the acid rain is sulfur dioxide. A large amount of SO exists in flue gas of a power plant, coke oven flue gas, boiler flue gas and flue gas of an iron and steel plant2、SO3Therefore, the flue gas needs to be desulfurized, and the currently adopted desulfurization processes mainly comprise a dry process and a wet process.
The wet process has high reaction speed, high efficiency, high desulfurization additive utilization rate and common application, and generally adopts slurry of calcium hydroxide and the like as absorption liquid to be sprayed with gas in a counter-current manner SO as to absorb sulfur-containing substances, mainly SO, in flue gas2、SO3. Whether the absorption liquid contacts with the flue gas fully influences the desulfurization effect very much, but among the prior art, through simple spraying, there is the insufficient problem of contact of absorption liquid and flue gas, leads to flue gas desulfurization effect not enough easily, or the too much scheduling problem of absorption liquid consumption. Therefore, a more reliable solution is now needed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a flue gas desulfurization device, aiming at the above-mentioned deficiencies in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that: a flue gas desulfurization apparatus comprising: the device comprises a desulfurization tower body, a wet type filtering assembly arranged inside the desulfurization tower body, a spraying assembly used for supplying absorption liquid into the desulfurization tower body, and a gas distribution assembly used for conveying flue gas to be treated into the desulfurization tower body;
the wet type filter assembly comprises a plurality of box type filters which are stacked along the height direction of the desulfurization tower body, the box type filters are in an inverted trapezoid shape, cavities in the inverted trapezoid shape are formed in the box type filters, and the box type filters are provided with densely arranged microporous structures penetrating through the box type filters so as to allow smoke to pass through;
the gas distribution assembly comprises a gas inlet pipe, a first gas distribution pipe and a second gas distribution pipe which are communicated with the gas inlet pipe, a transition pipe head communicated with the gas outlet end of the second gas distribution pipe, a cone gas distribution cylinder communicated with the upper end of the transition pipe head, and a liquid guide box communicated with the lower end of the transition pipe head; and a plurality of liquid outlet holes are formed in the bottom of the liquid guide box.
Preferably, the lower end of the adapter is communicated with the inside of the drainage box through a necking pipe.
Preferably, the second air distribution pipe is provided with a liquid blocking pipe section, and the liquid blocking pipe section is an inverted-V-shaped pipe section which is arranged in the middle of the second air distribution pipe and protrudes upwards.
Preferably, the circular opening at the lower part of the cone gas distribution cylinder is smaller than the circular opening at the upper part of the cone gas distribution cylinder, the outlet end of the first gas distribution pipe is communicated to the side part of the circular opening at the upper part of the cone gas distribution cylinder, and the outlet end of the first gas distribution pipe is arranged along the tangential direction of the periphery of the circular opening at the upper part.
Preferably, the top of box filter is provided with the convex border of periphery, a plurality of feed liquor holes have been seted up to inside by the upper surface on the border, a plurality of liquid guide grooves have been seted up on 4 inside wall surfaces of box filter, the feed liquor end in liquid guide groove with the feed liquor hole intercommunication.
Preferably, the liquid guide groove comprises a liquid distribution groove section and a flow guide groove section, the liquid distribution groove section is of a tree-shaped branched structure, a liquid inlet end at the upper part of the liquid distribution groove section is communicated with the liquid inlet hole, a tree-shaped branch at the lower part of the liquid distribution groove section forms a plurality of branches, and a liquid outlet end of each branch is communicated with one flow guide groove section.
Preferably, an installation block for overlapping the edge of the box filter is fixedly connected to the inner side wall of the desulfurization tower body, a positioning column is arranged on the installation block, and a first threaded hole communicated with the positioning column and the installation block is formed in the positioning column and the installation block;
the bottom surface of the edge of the box type filter is provided with a positioning hole for the positioning column to be matched and inserted, the edge is downwards provided with a second threaded hole penetrating through the positioning hole from the upper surface of the edge, and the edge is fixed by screws sequentially penetrating through the second threaded hole and the first threaded hole after being lapped on the mounting block.
Preferably, the spray assembly comprises an infusion tube, a spray header communicated with the infusion tube and arranged above the wet-type filter assembly, a plurality of liquid distribution tubes communicated with the infusion tube and drippers connected to the outlet ends of the liquid distribution tubes, and one dripper is correspondingly arranged above the liquid inlet hole of the box-type filter.
Preferably, the bottom surface of the desulfurization tower body is an inclined surface, a waste liquid outlet is formed in the lowest position of the inclined surface, and a waste liquid pipe is communicated with the waste liquid outlet.
Preferably, the top of desulfurization tower body is provided with the gas vent, the intercommunication has the blast pipe on the gas vent, still be provided with the defroster on the blast pipe.
The invention has the beneficial effects that:
according to the flue gas desulfurization device, the box-type filter is arranged, so that the flue gas can be fully contacted with the absorption liquid, the desulfurization effect of the flue gas is effectively improved, and on the other hand, spiral ascending air flow is formed through the air distribution assembly, so that the desulfurization effect can be further improved, and the desulfurization efficiency is improved;
the box-type filter is used as a carrier of the absorption liquid, on one hand, a plurality of absorption liquid runoffs can be formed on the four side walls of the box-type filter, so that the side wall body of the box-type filter is filled with the absorption liquid, and when the flue gas enters from the side part and passes through the side wall body, the absorption effect on sulfur-containing substances in the flue gas is ensured; on the other hand, a thin water curtain can be formed at the bottom of the box-type filter, when the flue gas enters from the lower direction, the flue gas passes through the water curtain, the flue gas is fully contacted with the absorption liquid, sulfur-containing substances are absorbed, the utilization rate of the absorption liquid can be improved, and the consumption of the absorption liquid is reduced;
according to the invention, the gas distribution assembly is arranged, and two airflows in the vertical upward and lateral directions are introduced to form the spirally-rising flue gas flow in the desulfurization tower body, so that on one hand, the collision contact probability and strength of the falling absorption liquid in the rising process of the flue gas can be greatly improved, and the absorption effect of the absorption liquid on sulfur-containing substances in the flue gas is improved; on the other hand, the smoke treatment device can be matched with the inverted trapezoid-shaped structure of the box-type filter, and the air flow direction of the spiral ascending enables smoke to pass through not only the bottom of the box-type filter, but also a large amount of smoke to pass through the four side walls of the box-type filter, so that the smoke treatment efficiency can be greatly improved, and the flow rate of the smoke is improved; and the four side walls of the box-type filter are filled with absorption liquid, and the flue gas is fully contacted with the absorption liquid after passing through the box-type filter, so that the desulfurization effect of the flue gas is greatly improved.
Drawings
FIG. 1 is a schematic view of the structure of a flue gas desulfurization apparatus of the present invention;
FIG. 2 is a schematic view of the construction of a cassette filter of the present invention;
FIG. 3 is a schematic cross-sectional view of a cassette filter according to the present invention;
FIG. 4 is a schematic view of the present invention at the edge of FIG. 3;
FIG. 5 is a schematic structural view of a mounting block in the desulfurization tower of the present invention;
FIG. 6 is a schematic view of the edge and mounting block of the present invention;
FIG. 7 is a schematic structural view of an air distribution assembly of the present invention;
fig. 8 is a schematic structural view of the first gas distribution pipe and the cone gas distribution cylinder of the present invention.
Description of reference numerals:
1-a desulfurization tower body; 10-mounting block; 11-a positioning column; 12 — a first threaded hole; 13-inclined plane; 14-a waste liquid outlet; 15-waste pipe; 16-an exhaust port; 17-an exhaust pipe; 18-a demister; 19-a screw;
2-a wet filter assembly; 20-a cassette filter; 21-a cavity; 22-edge; 23-liquid inlet hole; 24-a liquid guide groove; 25-liquid distribution tank section; 26-a drainage groove section; 27-substream; 28-positioning holes; 29 — a second threaded hole;
3-a spray assembly; 30-a transfusion tube; 31-a shower head; 32-liquid distribution pipe;
4, an air distribution assembly; 40, an air inlet pipe; 41-a first gas distribution pipe; 42-a second gas distribution pipe; 43-a transfer pipe head; 44-cone gas cylinder; 45-liquid guiding box; 46-a necking pipe; 47-inverted V-shaped pipe section; 48 — a first solenoid valve; 49-a second solenoid valve; 440-lower circular opening; 441-upper circular opening.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1
As shown in fig. 1, the flue gas desulfurization apparatus of the present embodiment includes: the device comprises a desulfurization tower body 1, a wet type filtering component 2 arranged inside the desulfurization tower body 1, a spraying component 3 used for supplying absorption liquid into the desulfurization tower body 1 and a gas distribution component 4 used for conveying flue gas to be treated into the desulfurization tower body 1;
the wet type filter assembly 2 comprises a plurality of box type filters 20 which are stacked along the height direction of the desulfurization tower body 1, the box type filters 20 are in an inverted trapezoid shape, cavities 21 in the inverted trapezoid shape are formed in the box type filters 20, and the box type filters 20 are provided with densely arranged microporous structures penetrating through the box type filters 20 so as to allow flue gas to pass through;
the gas distribution assembly 4 comprises a gas inlet pipe 40, a first gas distribution pipe 41 and a second gas distribution pipe 42 which are communicated with the gas inlet pipe 40, a switching pipe head 43 communicated with the gas outlet end of the second gas distribution pipe 42, a cone gas distribution cylinder 44 communicated with the upper end of the switching pipe head 43, and a liquid guide box 45 communicated with the lower end of the switching pipe head 43; the bottom of the liquid guiding box 45 is provided with a plurality of liquid outlet holes.
Wherein, the top of the desulfurization tower body 1 is provided with an exhaust port 16, and the exhaust port 16 is communicated with an exhaust pipe 17. In a further preferred embodiment, the exhaust pipe 17 is further provided with a demister 18.
Wherein, the bottom surface of the desulfurization tower body 1 is an inclined surface 13, a waste liquid outlet 14 is arranged at the lowest part of the inclined surface 13, and a waste liquid pipe 15 is communicated with the waste liquid outlet 14.
The flue gas desulfurization device is arranged at the outlet end of a flue gas exhaust system and is used for desulfurizing flue gas, such as power plant flue gas, coke oven flue gas, boiler flue gas, steel plant flue gas and the like, so as to remove sulfides in the flue gas. The flue gas gets into desulfurization tower body 1 (can be insufflated by the fan) by intake pipe 40, loops through a plurality of box filter 20 from bottom to top, and the leading-in absorption liquid of spray assembly 3 flows from top to bottom, collides the contact with the flue gas against the current, and box filter 20 is inside to be full of absorption liquid, cigaretteThe gas is also in sufficient contact with the absorption liquid as it passes through the cassette filter 20 to remove sulfur species, such as SO, from the flue gas by absorption of the absorption liquid2、SO3In this embodiment, a calcium hydroxide slurry may be selected as the absorbing liquid. On the other hand, the box-type filter 20 body is made of fibers with anti-corrosion performance, and has a dense microporous structure, so that the smoke can be ensured to pass through, certain adsorption filtration can be performed on the smoke, and the treatment effect of the smoke can be improved. The flue gas treated by the desulfurization tower body 1 is discharged from an exhaust port 16, and is discharged after moisture is removed by a demister 18. In one embodiment, the body of the cassette filter 20 may be made of carbon fiber in a porous structure, i.e., having excellent corrosion resistance and high mechanical strength.
Example 2
In addition to embodiment 1, and more specifically, referring to fig. 7 to 8, in this embodiment, the lower end of the adapter 43 is connected to the interior of the drainage box 45 through a reducing pipe 46. The second air distribution pipe 42 is provided with a liquid blocking pipe section which is an inverted V-shaped pipe section 47 which is arranged in the middle of the second air distribution pipe 42 and protrudes upwards. The lower circular opening 440 of the conical air distribution tube 44 is smaller than the upper circular opening 441 thereof, the outlet end of the first air distribution tube 41 is communicated to the side of the upper circular opening 441 of the conical air distribution tube 44, and the outlet end of the first air distribution tube 41 is arranged along the tangential direction of the periphery of the upper circular opening 441.
The top of box filter 20 is provided with the convex border 22 of periphery, has seted up a plurality of feed liquor holes 23 by upper surface to inside on the border 22, and a plurality of liquid guide groove 24 have been seted up on 4 inside wall surfaces of box filter 20, and the feed liquor end and the feed liquor hole 23 intercommunication of liquid guide groove 24.
One part of the flue gas entering the desulfurization tower body 1 is communicated to the lower part of the conical gas distribution cylinder 44 through the second gas distribution pipe 42 so as to flow upwards, the other part of the flue gas is communicated to the upper side of the conical gas distribution cylinder 44 through the first gas distribution pipe 41 and is arranged along the tangential direction of the periphery of the upper circular opening 441, the air flow direction of the flue gas is a circular direction in the horizontal plane, and after the two air flows are converged, the whole air inlet direction is spirally raised in the desulfurization tower body 1. On one hand, the collision contact probability and strength of the falling absorption liquid in the rising process of the flue gas can be greatly improved, and the absorption effect of the absorption liquid on sulfur-containing substances in the flue gas is improved; on the other hand, the gas flow direction which can be matched with the inverted trapezoid-shaped structure of the box-type filter 20 and spirally ascends enables the smoke to pass through not only the bottom of the box-type filter 20, but also a large amount of smoke to pass through the four side walls of the box-type filter 20, thereby greatly improving the smoke treatment efficiency and the flow rate of the smoke; and the four side walls of the box-type filter 20 are filled with absorption liquid, and the flue gas is fully contacted with the absorption liquid after passing through the box-type filter, so that the desulfurization effect of the flue gas is greatly improved. Furthermore, the first air distribution pipe 41 and the second air distribution pipe 42 are respectively provided with a first electromagnetic valve 48 and a second electromagnetic valve 49, and the air intake amount of the two air distribution pipes can be controlled by the electromagnetic valves.
The absorption liquid flows down along the side wall of the cone gas cylinder 44 and enters the liquid guide box 45, and the absorption liquid and the ascending gas flow are in reverse contact in the process, but the absorption liquid does not influence the smooth entering of the smoke.
The conical gas distribution cylinder 44 is arranged to uniformly guide the entering gas to the lower part of the box-type filter 20 at the bottommost part in the desulfurization tower body 1, so that the gas ascending through the lower circular opening 440 and the gas entering through the first gas distribution pipe 41 at the side part can be conveniently guided to form a spiral gas flow. The falling absorption liquid enters the liquid guide box 45 after passing through the cone gas distribution cylinder 44 and the adapter tube head 43, and is discharged from a liquid outlet hole at the bottom of the liquid guide box 45, and finally can be discharged from a waste liquid outlet 14 at the bottom of the desulfurization tower body 1. Wherein, in the round opening 440 of the lower part of the adapter tube head 43 and the cone gas cylinder 44, the flue gas entering from the bottom contacts with the falling absorption liquid for the first time, and the flue gas can be treated preliminarily. The arrangement of the necking pipe 46 at the lower part of the adapter pipe head 43 can greatly reduce the direct downward flow of the flue gas entering from the second gas distribution pipe 42 to the liquid guide box 45. In addition, as the liquid outlet at the bottom of the liquid guiding box 45 does not stop filling and flowing out of the absorption liquid, the lower part of the adapter tube head 43 is provided with the reducing tube 46, and the upper part of the adapter tube head 43 is opened, the smoke entering from the second gas distribution tube 42 basically flows upwards and enters the box-type filter 20. Wherein, through set up bellied falling V type pipe section 47 upwards in second gas distribution pipe 42 middle part, can prevent that the absorption liquid that gets into adapter 43 from splashing into second gas distribution pipe 42 after, to the direction flow of admitting air of second gas distribution pipe 42, can effectively prevent the absorption liquid entering second gas distribution pipe 42's section of admitting air to avoid influencing the input of flue gas.
Example 3
In this embodiment, on the basis of embodiment 2, referring to fig. 2-6, the liquid guiding groove 24 includes a liquid distribution groove section 25 and a liquid guiding groove section 26, the liquid distribution groove section 25 is a tree-shaped branched structure, the liquid inlet end of the upper portion of the liquid distribution groove section is communicated with the liquid inlet hole 23, the tree-shaped branched structure of the lower portion thereof forms a plurality of branches 27, and the liquid outlet end of the branch 27 is communicated with one of the liquid guiding groove sections 26. The spraying component 3 comprises a liquid conveying pipe 30, a spraying head 31 which is communicated with the liquid conveying pipe 30 and is arranged above the wet type filtering component 2, a plurality of liquid distribution pipes 32 which are communicated with the liquid conveying pipe 30 and a dripping head which is connected to the outlet ends of the liquid distribution pipes 32, and a dripping head is correspondingly arranged above the liquid inlet hole 23 of each box type filter 20. By arranging the drippers (not shown in the figure), the absorption liquid is continuously dripped into the liquid inlet hole 23 in the desulfurization process, so that the absorption liquid is fully absorbed in the box-type filter 20 body.
The absorption liquid is conveyed to the liquid conveying pipe 30 through a pump, and a part of the absorption liquid enters the spray header 31 so as to be sprayed from top to bottom to be contacted with the flue gas to absorb sulfur-containing substances; the other part of the smoke gas is dripped into the liquid inlet hole 23 of the box type filter 20 through the liquid distribution pipe 32 and the dripper so as to ensure that the box type filter 20 is filled with the absorption liquid, and the smoke gas is fully contacted with the absorption liquid when passing through the box type filter 20 to remove the sulfur-containing substances. Wherein, after the absorption liquid dripped by the dripper falls into the liquid inlet hole 23, the absorption liquid is distributed to each drainage groove communicated with the liquid inlet hole through the liquid distribution groove section 25 with the tree-shaped branched structure, and finally flows to the bottom of the box-type filter 20 and flows downwards through the micropores at the bottom of the box-type filter 20. On one hand, a plurality of absorption liquid runoffs can be formed on the four side walls of the box type filter 20, so that the side wall body of the box type filter 20 is fully absorbed with the absorption liquid, and when the flue gas enters from the side part and passes through, the effect of absorbing sulfur-containing substances in the flue gas is ensured; on the other hand, a thin water curtain can be formed at the bottom of the box filter 20, when the flue gas enters from the lower direction, the flue gas passes through the water curtain, and the flue gas is fully contacted with the absorption liquid to absorb the sulfur-containing substances. The box-type filter 20 is a porous structure and has a certain filtering effect on the smoke. Through the setting of above-mentioned structure to box filter 20 is the carrier of absorption liquid, can improve the contact probability and the contact time of flue gas and absorption liquid greatly, guarantees that absorption liquid fully absorbs the sulphur material in the flue gas, improves desulfurization effect, thereby also can improve the utilization ratio of absorption liquid, reduces the consumption of absorption liquid.
In a further embodiment, a mounting block 10 for overlapping the edge 22 of the cassette filter 20 is fixedly connected to the inner side wall of the desulfurization tower body 1, a positioning column 11 is arranged on the mounting block 10, and a first threaded hole 12 communicated with the positioning column 11 and the mounting block 10 is formed in the positioning column 11; the bottom surface of the edge 22 of the box-type filter 20 is provided with a positioning hole 28 for the positioning column 11 to be inserted in a matching way, the edge 22 is provided with a second threaded hole 29 penetrating to the positioning hole 28 from the upper surface downwards, and the edge 22 is fixed by a screw 19 sequentially penetrating through the second threaded hole 29 and the first threaded hole 12 after being lapped on the mounting block 10. The positioning columns 11 are matched with the positioning holes 28, so that the positioning during the installation is convenient, and the installation of the box-type filter 20 in the desulfurization tower body 1 is convenient by arranging the installation blocks 10 which are overlapped with the edges 22. In one embodiment, the desulfurization tower body 1 is provided at the top with an upper cover, which is initially opened, and the filter cassette 20 is mounted on the mounting block 10 and fixed by screws 19. In the above embodiment, the desulfurization tower body 1 and each component arranged inside the desulfurization tower body effectively adopt corrosion-resistant conventional materials, or a corrosion-resistant film layer is arranged on the surface of the component, so as to prolong the service life.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
Claims (10)
1. A flue gas desulfurization apparatus, comprising: the device comprises a desulfurization tower body, a wet type filtering assembly arranged inside the desulfurization tower body, a spraying assembly used for supplying absorption liquid into the desulfurization tower body, and a gas distribution assembly used for conveying flue gas to be treated into the desulfurization tower body;
the wet type filter assembly comprises a plurality of box type filters which are stacked along the height direction of the desulfurization tower body, the box type filters are in an inverted trapezoid shape, cavities in the inverted trapezoid shape are formed in the box type filters, and the box type filters are provided with densely arranged microporous structures penetrating through the box type filters so as to allow smoke to pass through;
the gas distribution assembly comprises a gas inlet pipe, a first gas distribution pipe and a second gas distribution pipe which are communicated with the gas inlet pipe, a transition pipe head communicated with the gas outlet end of the second gas distribution pipe, a cone gas distribution cylinder communicated with the upper end of the transition pipe head, and a liquid guide box communicated with the lower end of the transition pipe head; and a plurality of liquid outlet holes are formed in the bottom of the liquid guide box.
2. The flue gas desulfurization device according to claim 1, wherein the lower end of the adapter is communicated with the inside of the drainage box through a reducing pipe.
3. The flue gas desulfurization device according to claim 2, wherein the second gas distribution pipe is provided with a liquid blocking pipe section, and the liquid blocking pipe section is an inverted V-shaped pipe section which is arranged in the middle of the second gas distribution pipe and protrudes upwards.
4. The flue gas desulfurization apparatus according to claim 3, wherein the lower circular opening of the conical gas distribution tube is smaller than the upper circular opening thereof, the outlet end of the first gas distribution tube communicates to the side of the upper circular opening of the conical gas distribution tube, and the outlet end of the first gas distribution tube is disposed in a tangential direction of the outer periphery of the upper circular opening.
5. The flue gas desulfurization device according to claim 1, wherein the top of the box filter is provided with a rim protruding toward the outer periphery, the rim is provided with a plurality of liquid inlet holes from the upper surface to the inside, the 4 inner side wall surfaces of the box filter are provided with a plurality of liquid guide grooves, and the liquid inlet ends of the liquid guide grooves are communicated with the liquid inlet holes.
6. The flue gas desulfurization device according to claim 5, wherein the liquid guiding groove comprises a liquid distribution groove section and a flow guiding groove section, the liquid distribution groove section has a tree-shaped branched structure, the upper liquid inlet end of the liquid distribution groove section is communicated with the liquid inlet hole, the lower tree-shaped branch of the liquid distribution groove section forms a plurality of branches, and the liquid outlet end of each branch is communicated with one flow guiding groove section.
7. The flue gas desulfurization device of claim 5, wherein an installation block for overlapping the edge of the cassette filter is fixedly connected to the inner side wall of the desulfurization tower body, a positioning column is arranged on the installation block, and the positioning column and the installation block are provided with a first threaded hole which is communicated with each other;
the bottom surface of the edge of the box type filter is provided with a positioning hole for the positioning column to be matched and inserted, the edge is downwards provided with a second threaded hole penetrating through the positioning hole from the upper surface of the edge, and the edge is fixed by screws sequentially penetrating through the second threaded hole and the first threaded hole after being lapped on the mounting block.
8. The flue gas desulfurization device according to claim 5, wherein the spray assembly comprises a liquid conveying pipe, a spray header communicated with the liquid conveying pipe and arranged above the wet type filter assembly, a plurality of liquid distribution pipes communicated with the liquid conveying pipe, and a dripper connected to the outlet ends of the liquid distribution pipes, and one dripper is correspondingly arranged above the liquid inlet hole of each box type filter.
9. The flue gas desulfurization device of claim 1, wherein the bottom surface of the desulfurization tower body is an inclined surface, a waste liquid outlet is formed at the lowest part of the inclined surface, and a waste liquid pipe is communicated with the waste liquid outlet.
10. The flue gas desulfurization device of claim 1, wherein an exhaust port is arranged at the top of the desulfurization tower body, an exhaust pipe is communicated with the exhaust port, and a demister is further arranged on the exhaust pipe.
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| CN201910974181.0A CN110585881B (en) | 2019-10-14 | 2019-10-14 | Flue gas desulfurization device |
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| CN201910974181.0A CN110585881B (en) | 2019-10-14 | 2019-10-14 | Flue gas desulfurization device |
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| CN110585881B CN110585881B (en) | 2023-09-26 |
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| CN106563326A (en) * | 2016-11-07 | 2017-04-19 | 班明华 | Water curtain dust remover |
| CN206414960U (en) * | 2017-01-04 | 2017-08-18 | 浙江友通环境科技有限公司 | Waste gas purification tower with swirling flow plate |
| CN210993716U (en) * | 2019-10-14 | 2020-07-14 | 苏州仕净环保科技股份有限公司 | Flue gas desulfurization device |
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