CN110841464A - Novel spiral shell type smoke distributor capable of realizing rotary spray desulfurization - Google Patents
Novel spiral shell type smoke distributor capable of realizing rotary spray desulfurization Download PDFInfo
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- CN110841464A CN110841464A CN201911301831.1A CN201911301831A CN110841464A CN 110841464 A CN110841464 A CN 110841464A CN 201911301831 A CN201911301831 A CN 201911301831A CN 110841464 A CN110841464 A CN 110841464A
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 37
- 230000023556 desulfurization Effects 0.000 title claims abstract description 37
- 239000000779 smoke Substances 0.000 title claims abstract description 20
- 239000007921 spray Substances 0.000 title claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 105
- 239000003546 flue gas Substances 0.000 claims abstract description 105
- 230000009467 reduction Effects 0.000 claims abstract description 5
- 230000003009 desulfurizing effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 16
- 238000005457 optimization Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- 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
-
- 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)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a novel spiral shell type smoke distributor for rotary spray desulfurization, which comprises a spiral shell flue, wherein the spiral shell flue is in a tapered type, a circular seam outlet is formed in the inner side of the spiral shell flue, and the section of the flue is reduced along with the reduction of the flow rate of flowing air, so that the consistency of dynamic pressure is ensured, and the smoke in the flue is uniformly distributed. The arc-shaped flow deflectors with the same flow direction as the flue gas are additionally arranged in the volute flue, and the length of each flow deflector is gradually reduced along the circumferential direction, so that the volute flue is divided into a plurality of small flow channels, the flow guiding effect is achieved, the flue gas distribution is more uniform, and the rotational flow strength of the flue gas is increased. Meanwhile, the flow deflectors increase the flue gas flow velocity, so that the flue gas flow velocity can be uniformly distributed under the condition of small flue gas amount, and the flue gas fluctuation adaptability of the device is wider.
Description
Technical Field
The invention relates to a flue gas distributor, in particular to a novel spiral-shell type flue gas distributor for rotary spray desulfurization, and belongs to the field of flue gas distribution application.
Background
SO2 is one of the main pollutants in industrial atmosphere, is the main cause of acid rain, and puts forward more strict control requirements on desulfurization facilities of various domestic metallurgy and steel enterprises in order to strengthen the emission limit of SO2 in the industrial atmosphere.
The rotary Spray Desulfurization (SDA) process is a relatively mature semi-dry desulfurization process, and has the characteristics of no wastewater generation, no equipment corrosion, no need of a de-whitening process, simple operation, high automation degree and the like, and can be widely applied to flue gas desulfurization treatment in the industries of sintering, pelletizing, power plants, waste incineration and the like. However, with the enhancement of environmental protection policy, the development of the process is severely restricted by the defects that the desulfurization efficiency of the process is insufficient and the ultra-low emission requirement is difficult to meet.
The flue gas distributor is an important component of the SDA desulfurization system, and sulfur-containing flue gas enters the desulfurization tower from the center of the top of the desulfurization tower through the flue gas distributor in a spiral descending state and reacts with a desulfurizer chemically. The distribution effect and the motion state of the flue gas are important factors influencing the desulfurization efficiency, and the good distribution effect can provide stronger swirl strength, uniform concentration distribution and longer flue gas retention time for the flue gas, so that the mixing strength of the flue gas and the desulfurizer is stronger, and the reaction is more sufficient. The flue gas distribution effect provided by the traditional SDA flue gas distributor is not ideal, on one hand, the flue gas is not fully diffused when entering the tower, and a negative pressure entrainment area is formed on the circumference of the top of the desulfurization tower, so that wet materials are entrained and adhered to the wall; on the other hand, in order to achieve the effect of rapid drying, the axial speed of the flue gas is high, the rotational flow strength is not high, the gas, solid and liquid mixing effect is poor, and the desulfurization efficiency is influenced.
In conclusion, the distribution effect of the flue gas is an important factor influencing the SDA desulfurization efficiency, how to solve the technical defects of the existing flue gas distributor, and the technical problem of realizing the effect improvement of the SDA desulfurization is urgently solved.
Disclosure of Invention
The invention aims to provide a novel spiral shell type flue gas distributor for rotary spray desulfurization, which can solve the problems of insufficient mixing of flue gas and a desulfurizing agent and low desulfurization efficiency caused by the unsatisfactory flue gas distribution effect of the flue gas distributor in the conventional rotary spray desulfurization technology.
The purpose of the invention can be realized by the following technical scheme:
a novel spiral shell type smoke distributor for rotary spray desulfurization comprises a spiral shell flue, wherein the spiral shell flue is in a tapered type, and a circle of circular seam outlet is formed in the bottom of the inner side of the spiral shell flue;
the spiral case flue's lower part is installed the toper deconcentrator, and the air inlet at toper deconcentrator top is connected with the inboard circumferential weld export of spiral case flue, the toper deconcentrator is round platform type structure.
A plurality of hydraulic ram is installed in the inner wall outside of spiral case flue, and the bottom of hydraulic ram is connected fixedly with the top of toper deconcentrator, and a plurality of hydraulic ram installs in the top of circumferential weld export, and the inside of spiral case flue is close to circumferential weld export one side and installs the flue gas baffle that the round can reciprocate, and the top of hydraulic ram is connected in the bottom of roof, and the inner wall of spiral case flue is at the vertical shifting chute that is provided with in one side of hydraulic ram, and roof one side is connected with the top of flue gas baffle through the connecting rod, and the connecting rod runs through the shifting chute.
Preferably, a plurality of arc-shaped guide vanes are mounted at the bottom end inside the volute flue, and are uniformly distributed along the circumference of an annular seam outlet in the volute flue in an anticlockwise direction, and the flow direction of the arc-shaped guide vanes is consistent with the flow direction of flue gas; the length of the arc-shaped flow deflector is gradually reduced from the inlet of the volute flue to the other end, the reduction trend of the length of the arc-shaped flow deflector is the same as that of the volute flue, and the arc-shaped flow deflectors form a plurality of arc-shaped flow channels in the volute flue.
Preferably, the conical disperser consists of a circular truncated cone-shaped main body and two circular truncated cone-shaped shells, and is connected with the volute flue to form three flue gas channels, namely a first channel, a second channel and a third channel.
Preferably, the plurality of hydraulic jacks are arranged on the outer side of the annular seam outlet in the volute flue and above the first flow channel, and the plurality of hydraulic jacks are uniformly distributed in the volute flue along the circumferential direction.
Preferably, a plurality of inner guide plates are arranged in the first flow channel along the circumferential direction, a plurality of middle guide plates are arranged in the second flow channel along the circumferential direction, and a plurality of outer guide plates are arranged in the third flow channel along the circumferential direction.
Preferably, the inner guide plate, the middle guide plate and the outer guide plate have different inclination angles in the first flow channel, the second flow channel and the third flow channel, and the inclination angle of the inner guide plate in the first flow channel is smaller than the inclination angles of the middle guide plate and the outer guide plate.
Preferably, the included angle between the inner guide plate and the vertical direction is 0-15 degrees, the included angle between the middle guide plate and the vertical direction is 15-30 degrees, and the included angle between the outer guide plate and the vertical direction is 15-45 degrees.
Preferably, the method for using the smoke distributor specifically comprises the following steps:
the method comprises the following steps: the sulfur-containing flue gas enters the interior of a volute flue, flows back through an arc-shaped flow deflector, uniformly flows out from an annular seam outlet in a rotating state, is divided into three parts through a first flow channel, a second flow channel and a third flow channel, and respectively enters three flue gas flow channels arranged in a conical disperser, and the flue gas in each flow channel is guided by each flow deflector and then is dispersed and enters a desulfurizing tower to complete chemical reaction with desulfurizing agent fog drops;
step two: if the inlet gas flow of the first flow channel, the second flow channel and the third flow channel needs to be adjusted in the working process, the hydraulic jack is started to stretch, and then the smoke baffle is driven to move up and down on the side face of the circular seam outlet, so that the proportion of the smoke flow in the first flow channel, the second flow channel and the third flow channel is adjusted.
The invention has the beneficial effects that:
1. the arc-shaped flow deflectors with the same flow direction as the flue gas are additionally arranged in the volute flue, and the length of each flow deflector is gradually reduced along the circumferential direction, so that the volute flue is divided into a plurality of small flow channels, the flow guiding effect is achieved, the flue gas distribution is more uniform, and the rotational flow strength of the flue gas is increased. Meanwhile, the flow deflectors increase the flue gas flow velocity, so that the flue gas flow velocity can be uniformly distributed under the condition of small flue gas amount, and the flue gas fluctuation adaptability of the device is wider.
2. By arranging the conical disperser to be a three-flow-channel form, the smoke is divided into three, and the smoke distribution is more uniform. Meanwhile, guide plates with different angles are arranged in each flow channel, so that the smoke is in different running states, and different functional effects are realized. The flue gas of the first flow channel faces the outlet of the atomizer, and the flue gas plays a role in quickly reacting and drying the desulfurizer fog drops; the flue gas in the second flow channel enters the desulfurizing tower in a rotating mode, so that the cyclone strength of the flue gas is increased, the mixing effect is enhanced, and the desulfurizing effect is improved; the third flow is that the flue gas is the diffusion of rotation form to the desulfurizing tower both sides, avoids the top of the tower to appear negative pressure roll up the mat, wet material glues the wall phenomenon, optimizes the interior flue gas distribution of tower simultaneously for the flue gas distribution is more even, and the reaction is more high-efficient.
3. The hydraulic jack and the flue gas baffle are arranged at the outlet of the volute flue, so that the flow of the first flow channel at the annular seam outlet of the volute flue, the second flue gas and the third flue gas can be adjusted, and the problems that the flow of the first flow channel is too large, the opening angle of a slurry spraying surface is too small, and the mixing in a tower is insufficient are solved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a plan view of fig. 1 of the present invention.
FIG. 3 is a schematic view of the plane structure of the volute flue of the present invention.
FIG. 4 is a schematic diagram of a planar structure of a conical disperser according to the present invention.
Fig. 5 is a schematic diagram of the flue gas distribution effect of the existing SDA desulfurization system.
FIG. 6 is a schematic diagram of the flue gas distribution effect of the desulfurization system of the present invention.
In the figure: 1. a volute flue; 2. a flue gas baffle; 3. a hydraulic jack; 4. a first flow passage; 5. a second flow passage; 6. a third flow path; 7. an outer baffle; 8. a middle baffle; 9. an inboard baffle; 10. a conical disperser; 11. an arc-shaped flow deflector; 12. a top plate; 13. the slot is moved.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a novel spiral-casing type flue gas distributor for rotary spray desulfurization comprises a spiral-casing flue 1, wherein the spiral-casing flue 1 is of a tapered type, and a circle of circular seam outlets are formed in the bottom of the inner side of the spiral-casing flue 1; the cross section of the flue is reduced along with the reduction of the air quantity flowing through the flue, so that the dynamic pressure is consistent, and the flue gas in the flue is uniformly distributed.
The lower part of the volute flue 1 is provided with a conical disperser 10, an air inlet at the top of the conical disperser 10 is connected with an annular seam outlet at the inner side of the volute flue 1, and the conical disperser 10 is of a circular truncated cone structure;
a plurality of hydraulic ram 3 is installed in the inner wall outside of spiral case flue 1, the bottom of hydraulic ram 3 is connected fixedly with the top of toper deconcentrator 10, and a plurality of hydraulic ram 3 installs in the top of circumferential weld export, the inside of spiral case flue 1 is close to circumferential weld export one side and installs the flue gas baffle 2 that the round can reciprocate, the bottom at roof 12 is connected at the top of hydraulic ram 3, spiral case flue 1's inner wall is at the vertical shifting chute 13 that is provided with in one side of hydraulic ram 3, and roof 12 one side is connected with the top of flue gas baffle 2 through the connecting rod, the connecting rod runs through shifting chute 13.
As a technical optimization scheme of the invention, a plurality of arc-shaped guide vanes 11 are installed at the bottom end inside the volute flue 1, and the arc-shaped guide vanes 11 are uniformly distributed along the circumference of an annular seam outlet in the volute flue 1 in an anticlockwise direction and are consistent with the flow direction of flue gas; the length of the arc-shaped guide vanes 11 is gradually reduced from the inlet of the volute flue 1 to the other end, the reduction trend of the arc-shaped guide vanes 11 is the same as that of the volute flue 1, and a plurality of arc-shaped flow channels are formed in the volute flue 1 by the arc-shaped guide vanes 11.
As a technical optimization scheme of the invention, the conical disperser 10 consists of a truncated cone-shaped main body and two truncated cone-shaped shells, and is connected with the volute flue 1 to form three flue gas channels, namely a first channel 4, a second channel 5 and a third channel 6, wherein the three channels can divide flue gas into three parts and uniformly enter the desulfurization tower.
As a technical optimization scheme of the invention, a plurality of hydraulic jacks 3 are arranged at the outer side of an annular seam outlet in the volute flue 1 and above the first flow channel 4, and the plurality of hydraulic jacks 3 are uniformly distributed in the volute flue 1 along the circumferential direction. The hydraulic jack 3 can drive the flue gas baffle 2 to move up and down, and further the flue gas flow proportion in the first flow channel 4, the second flow channel 5 and the third flow channel 6 can be adjusted according to the actual running condition.
As a technical optimization scheme of the invention, a plurality of inner guide plates 9 are arranged in the first flow channel 4 along the circumferential direction, a plurality of middle guide plates 8 are arranged in the second flow channel 5 along the circumferential direction, a plurality of outer guide plates 7 are arranged in the third flow channel 6 along the circumferential direction, and the guide plates can change the flow direction of flue gas entering the desulfurization tower, so that the flue gas is not easy to stick to the wall in the desulfurization tower.
As a technical optimization scheme of the present invention, the inclination angles of the inner guide plate 9, the middle guide plate 8 and the outer guide plate 7 in the first flow channel 4, the second flow channel 5 and the third flow channel 6 are different, and the inclination angle of the inner guide plate 9 in the first flow channel 4 is smaller than the inclination angles of the middle guide plate 8 and the outer guide plate 7.
As a technical optimization scheme of the invention, the included angle between the inner guide plate 9 and the vertical direction is 0-15 degrees, the included angle between the middle guide plate 8 and the vertical direction is 15-30 degrees, and the included angle between the outer guide plate 7 and the vertical direction is 15-45 degrees.
The method for using the smoke distributor specifically comprises the following steps:
the method comprises the following steps: the sulfur-containing flue gas enters the interior of the volute flue 1, flows back through the arc-shaped flow guide plates 11, then uniformly flows out from an annular seam outlet in a rotating state, is divided into three parts through the first flow channel 4, the second flow channel 5 and the third flow channel 6, and respectively enters three flue gas flow channels arranged in the conical disperser 10, and the flue gas in each flow channel is guided by each flow guide plate and then is dispersed into the desulfurizing tower to finish chemical reaction with desulfurizing agent fog drops;
step two: if the inlet gas flow of the first flow channel 4, the second flow channel 5 and the third flow channel 6 needs to be adjusted during work, the hydraulic jack 3 is started to stretch, and then the flue gas baffle 2 is driven to move up and down on the side surface of the circular seam outlet, so that the flue gas flow ratio in the first flow channel 4, the second flow channel 5 and the third flow channel 6 can be adjusted.
When the invention is used, sulfur-containing flue gas enters the interior of the volute flue 1, flows back through the arc-shaped flow deflector 11, then uniformly flows out from the annular seam outlet in a rotating state, the flue gas is divided into three parts through the first flow channel 4, the second flow channel 5 and the third flow channel 6, and respectively enters the three flue gas flow channels arranged in the conical disperser 10, and the flue gas in each flow channel is guided by each flow deflector and then is dispersed into the desulfurizing tower to complete chemical reaction with desulfurizing agent fog drops.
Therefore, the uniformity and the swirling degree of the smoke distribution in the flue are increased, the effect of uniform distribution under the condition of small flow is realized, and the problem of uneven distribution of the smoke flow when the fluctuation of the smoke flow is large is avoided.
The conical disperser 10 divides the flue gas into three, the flue gas enters the desulfurizing tower through the first flow channel, the second flow channel and the third flow channel respectively, and the positions of flue gas outlets corresponding to the flow channels are different, so that the flue gas in the tower is distributed more uniformly. Meanwhile, a plurality of guide plates are arranged in each flow channel, the installation angle of the inner guide plate 9 is 0-15 degrees, smoke flows to the outlet area of the atomizer at a high vertical direction speed, and the effects of quickly mixing and drying fog drops are achieved; the installation angle of the middle guide plate 8 is 15-30 degrees, the flue gas enters the desulfurizing tower in a spiral shape, the speed of the part of the flue gas in the vertical direction is still greater than the radial speed, and therefore the flue gas can be better contacted and mixed with a spraying area; the installation angle of the outer side guide plate 7 is 15-45 degrees, flue gas enters the desulfurization tower from the outer side of the conical disperser 10 in a rotating mode, and is rapidly diffused in the upper area of the tower, so that the problem that slurry formed in the upper area of the tower due to negative pressure is sucked and adhered to the wall is avoided, the uniformity degree of flue gas distribution in the tower is increased, gas, solid and liquid are mixed more uniformly, and the desulfurization efficiency is improved.
A flue gas baffle 2 and a plurality of hydraulic rams 3 in the volute flue 1 constitute a flue gas flow regulation system. The flue gas baffle 2 is a circular baffle with the same diameter as the inner circle of the volute flue 1, and the flue gas flow ratio of the first flow channel 4 to the second flow channel 5 and the third flow channel 6 is realized by controlling the lifting of the hydraulic ram 3. The flue gas volume in the first flow channel 4 can be adjusted according to the actual slurry spraying volume, so that the problems of small flue gas volume in the flow channel, incomplete mixing with fog drops, overlarge flue gas volume, low cyclone degree and short retention time are solved.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The novel spiral shell type smoke distributor for rotary spray desulfurization is characterized by comprising a spiral shell flue (1), wherein the spiral shell flue (1) is in a tapered type, and the bottom of the inner side of the spiral shell flue (1) is provided with a circle of circular seam outlets;
a conical disperser (10) is arranged at the lower part of the volute flue (1), an air inlet at the top of the conical disperser (10) is connected with an annular seam outlet at the inner side of the volute flue (1), and the conical disperser (10) is of a circular truncated cone structure;
a plurality of hydraulic ram (3) are installed in the inner wall outside of spiral case flue (1), the bottom of hydraulic ram (3) is connected fixedly with the top of toper deconcentrator (10), and install in the top of circumferential weld export a plurality of hydraulic ram (3), the inside of spiral case flue (1) is close to circumferential weld export one side and installs flue gas baffle (2) that the round can reciprocate, the bottom at roof (12) is connected at the top of hydraulic ram (3), the inner wall of spiral case flue (1) is vertical in one side of hydraulic ram (3) to be provided with shifting chute (13), and roof (12) one side is connected with the top of flue gas baffle (2) through the connecting rod, the connecting rod runs through shifting chute (13).
2. The novel spiral-shell type flue gas distributor for rotary spray desulfurization according to claim 1, is characterized in that: a plurality of arc-shaped guide vanes (11) are mounted at the bottom end of the interior of the volute flue (1), and the arc-shaped guide vanes (11) are uniformly distributed along the circumference of an annular seam outlet in the volute flue (1) in an anticlockwise direction and are consistent with the flow direction of flue gas; the length of the arc-shaped guide vanes (11) is gradually reduced from the inlet of the volute flue (1) to the other end, the reduction trend of the arc-shaped guide vanes is the same as that of the volute flue (1), and a plurality of arc-shaped flow channels are formed in the volute flue (1) by the arc-shaped guide vanes (11).
3. The novel spiral-shell type flue gas distributor for rotary spray desulfurization according to claim 1, is characterized in that: the conical disperser (10) consists of a circular truncated cone-shaped main body and two circular truncated cone-shaped shells, and is connected with the volute flue (1) to form three flue gas flow channels which are respectively a first flow channel (4), a second flow channel (5) and a third flow channel (6).
4. The novel spiral-shell type flue gas distributor for rotary spray desulfurization according to claim 1, is characterized in that: the hydraulic jacks (3) are arranged on the outer side of an annular seam outlet in the volute flue (1) and above the first flow channel (4), and the hydraulic jacks (3) are uniformly distributed in the volute flue (1) along the circumferential direction.
5. The novel spiral-shell type flue gas distributor for rotary spray desulfurization according to claim 1, is characterized in that: a plurality of inner side guide plates (9) are installed in the first flow channel (4) along the circumferential direction, a plurality of middle guide plates (8) are installed in the second flow channel (5) along the circumferential direction, and a plurality of outer side guide plates (7) are installed in the third flow channel (6) along the circumferential direction.
6. The novel spiral-shell type flue gas distributor for rotary spray desulfurization according to claim 5, is characterized in that: the inner side guide plate (9), the middle guide plate (8) and the outer side guide plate (7) are different in the inclination angles of the first flow channel (4), the second flow channel (5) and the third flow channel (6), and the inclination angle of the inner side guide plate (9) in the first flow channel (4) is smaller than the inclination angle of the middle guide plate (8) and the outer side guide plate (7).
7. The novel spiral-shell type flue gas distributor for rotary spray desulfurization according to claim 6, wherein: the included angle between the inner guide plate (9) and the vertical direction is 0-15 degrees, the included angle between the middle guide plate (8) and the vertical direction is 15-30 degrees, and the included angle between the outer guide plate (7) and the vertical direction is 15-45 degrees.
8. The novel spiral-shell type flue gas distributor for rotary spray desulfurization according to claim 1, is characterized in that: the method for using the smoke distributor specifically comprises the following steps:
the method comprises the following steps: sulfur-containing flue gas enters the interior of a volute flue (1), flows back through an arc-shaped flow deflector (11), flows out from an annular seam outlet uniformly in a rotating state, is divided into three parts through a first flow channel (4), a second flow channel (5) and a third flow channel (6), and enters three flue gas flow channels arranged in a conical disperser (10) respectively, and the flue gas in each flow channel is guided by each flow deflector and then is dispersed into a desulfurizing tower to complete chemical reaction with desulfurizing agent droplets;
step two: if the air inlet flow of the first flow channel (4), the second flow channel (5) and the third flow channel (6) needs to be adjusted in the work process, the hydraulic ram (3) is started to stretch, and then the smoke baffle (2) is driven to move up and down on the side face of the circular seam outlet, so that the proportion of the smoke flow in the first flow channel (4), the second flow channel (5) and the third flow channel (6) is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911301831.1A CN110841464A (en) | 2019-12-17 | 2019-12-17 | Novel spiral shell type smoke distributor capable of realizing rotary spray desulfurization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911301831.1A CN110841464A (en) | 2019-12-17 | 2019-12-17 | Novel spiral shell type smoke distributor capable of realizing rotary spray desulfurization |
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| CN110841464A true CN110841464A (en) | 2020-02-28 |
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| CN201911301831.1A Pending CN110841464A (en) | 2019-12-17 | 2019-12-17 | Novel spiral shell type smoke distributor capable of realizing rotary spray desulfurization |
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| CN (1) | CN110841464A (en) |
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| CN111320223A (en) * | 2020-03-31 | 2020-06-23 | 大唐环境产业集团股份有限公司 | Drying tower and method for preventing desulfurization wastewater from sticking to wall and desulfurization wastewater treatment system |
| CN113405112A (en) * | 2020-11-11 | 2021-09-17 | 山东大学 | Flue gas distributor and boiler system controlled according to outlet temperature difference |
| CN114380347A (en) * | 2022-02-11 | 2022-04-22 | 南方电网电力科技股份有限公司 | Flue gas distributor for rotary spray evaporation of desulfurization wastewater |
| CN117504575A (en) * | 2024-01-08 | 2024-02-06 | 辽宁微木环境工程有限公司 | Efficient turbulent flow reactor for desulfurization system |
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| CN117504575B (en) * | 2024-01-08 | 2024-03-08 | 辽宁微木环境工程有限公司 | Efficient turbulent flow reactor for desulfurization system |
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