CN209791290U - Novel counter-flow moving bed desulfurization and denitrification device and flue gas treatment system thereof - Google Patents
Novel counter-flow moving bed desulfurization and denitrification device and flue gas treatment system thereof Download PDFInfo
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- CN209791290U CN209791290U CN201920824228.0U CN201920824228U CN209791290U CN 209791290 U CN209791290 U CN 209791290U CN 201920824228 U CN201920824228 U CN 201920824228U CN 209791290 U CN209791290 U CN 209791290U
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Abstract
the utility model belongs to the field of flue gas treatment, and particularly discloses a novel countercurrent moving bed desulfurization and denitrification device and a flue gas treatment system thereof, wherein the desulfurization and denitrification device comprises two accumulated flue gas treatment systems, and each flue gas treatment system comprises a desulfurization bed layer and a denitrification bed layer; activated carbon is added into the desulfurization bed layer and the denitration bed layer, and a flue gas inlet is formed in the lower part of the desulfurization bed layer; the denitration bed layer is positioned above the desulfurization bed layer and is communicated with the desulfurization bed layer, and a flue gas outlet is arranged above the denitration bed layer; the intraformational lower part of denitration bed is provided with spouts the ammonia pipe, spout ammonia to denitration bed in through setting up the ammonia mouth that spouts on spouting the ammonia pipe, replace original ammonia smoke box, baffle and cloth funnel of spouting, show the height that has reduced whole SOx/NOx control device and associated system, reduce the steel quantity at to a great extent, the height of reduction system, make whole SOx/NOx control device's structure simplify, the preparation, the installation is simpler, SOx/NOx control device's preparation and construction period have been shortened.
Description
Technical Field
the utility model belongs to the flue gas treatment field, concretely relates to novel countercurrent moving bed SOx/NOx control device and flue gas processing system thereof.
Background
The existing adsorption tower for dry desulfurization and denitration is integrally of a vertical structure, a desulfurization bed layer and a denitration bed layer are respectively arranged inside the adsorption tower from bottom to top, active carbon enters the adsorption tower from an opening in the upper part of the adsorption tower and is discharged through an opening in the bottom end of the adsorption tower, an independent ammonia spraying smoke box is arranged on the side wall of the adsorption tower below the denitration bed layer, and a partition plate is arranged inside the adsorption tower at the height of the ammonia spraying smoke box to ensure and guide smoke to enter and exit the ammonia spraying smoke box. The flue gas enters the oxidation adsorption tower from the bottom of the adsorption tower after being dedusted, the flue gas is subjected to adsorption and reaction to complete desulfurization and denitrification, and finally the flue gas is discharged through a flue gas outlet on the side wall of the adsorption tower. Because the baffle has obstructed the active carbon that the upper strata dropped and has passed through, consequently need set up one deck cloth funnel bed layer in addition above the baffle layer and communicate from top to bottom to the whereabouts of active carbon is convenient for. The structure of ammonia spraying smoke box, partition plate layer and cloth funnel bed makes the height ratio of whole platform adsorption tower higher, and inner structure becomes more complicated, and steel consumption is very big, and other systems that link to each other with the adsorption tower also need corresponding increase, extension, and then the time limit for a project of the preparation of adsorption tower and other systems, installation also can prolong.
Therefore, it is necessary to provide a novel countercurrent moving bed desulfurization and denitrification apparatus and a flue gas treatment system thereof, which are not sufficient in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel counterflow moving bed SOx/NOx control device and flue gas processing system thereof is with solving present dry process SOx/NOx control at least and with the adsorption tower height too high, the complicated scheduling problem of adsorption tower inner structure.
in order to achieve the above object, one aspect of the present invention provides the following technical solutions:
a flue gas treatment system, the flue gas treatment system comprising: the desulfurization bed is added with active carbon, and the lower part of the desulfurization bed is provided with a flue gas inlet; the denitration bed layer is positioned above the desulfurization bed layer and is communicated with the desulfurization bed layer, activated carbon is added into the denitration bed layer, and a flue gas outlet is formed above the denitration bed layer; and an ammonia spraying pipe is arranged in the denitration bed layer, an ammonia spraying opening is formed in the ammonia spraying pipe, and the ammonia spraying pipe sprays ammonia gas into the denitration bed layer through the ammonia spraying opening.
In the flue gas treatment system, preferably, the ammonia injection pipe is located at the lower part of the denitration bed, and the ammonia gas is uniformly injected downwards by the ammonia injection pipe.
In the above flue gas treatment system, preferably, the ammonia injection port of the ammonia injection pipe is provided with a nozzle, the ammonia injection pipe injects ammonia gas into the denitration bed through the nozzle, the nozzle is inclined downward, and an included angle between an injection direction of the nozzle and a vertical direction is 35 ° to 50 °. And ammonia inlets are respectively arranged at two ends of the ammonia spraying pipe.
Preferably, the ammonia injection pipe is a square pipe, and the nozzle is installed on the pipe wall plane of the ammonia injection pipe.
preferably, in the flue gas treatment system, a plurality of ammonia injection pipes are arranged in the denitration bed layer, and the plurality of ammonia injection pipes are arranged in the denitration bed layer at intervals. The ammonia spraying pipe is horizontally arranged.
In the flue gas treatment system, preferably, an air-permeable funnel layer is arranged at the lower part of the desulfurization bed layer, and the flue gas inlet is located on the side wall of the desulfurization bed layer where the air-permeable funnel layer is located. And a flow control rake is arranged below the air-permeable funnel layer and used for controlling the outflow speed of the activated carbon in the air-permeable funnel layer.
Preferably, the flue gas treatment system further comprises a gas barrier funnel layer, which is arranged above the denitration bed layer and is communicated with the denitration bed layer; the choke funnel layer comprises a plurality of connected funnels, activated carbon enters the flue gas treatment system through the choke funnel layer, and the flue gas outlet is located on the side wall of the choke funnel layer.
The utility model discloses another aspect provides following technical scheme:
The utility model provides a novel countercurrent moving bed SOx/NOx control device, SOx/NOx control device includes two flue gas processing systems, is first flue gas processing system and second flue gas processing system respectively, first flue gas processing system is located second flue gas processing system's top.
Preferably, an isolation layer is arranged between the first flue gas treatment system and the second flue gas treatment system, the isolation layer isolates the first flue gas treatment system from the second flue gas treatment system, activated carbon is added into the second flue gas treatment system through the isolation layer, and the activated carbon in the first flue gas treatment system is led out through the isolation layer.
Preferably, the upper part of the desulfurization and denitrification device is provided with a first activated carbon inlet and a second activated carbon inlet, and the bottom end of the desulfurization and denitrification device is provided with an activated carbon outlet; the flue gas treatment device is characterized in that an activated carbon adding pipeline and an activated carbon leading-out pipeline are arranged in the desulfurization and denitrification device, a collecting funnel is arranged in the isolation layer and used for collecting activated carbon in the first flue gas treatment system, and two ends of the activated carbon leading-out pipeline are communicated with the collecting funnel and an activated carbon outlet to lead out the activated carbon of the first flue gas treatment system. And the second activated carbon inlet is connected with the activated carbon adding pipeline, and activated carbon is added into the second flue gas treatment system through the activated carbon adding pipeline.
preferably, the isolation layer is provided with a diversion pipeline, the activated carbon adding pipeline is communicated into the second flue gas treatment system through the diversion pipeline, and activated carbon is uniformly added into the second flue gas treatment system.
Compared with the closest prior art, the utility model provides a technical scheme has following beneficial effect:
the utility model provides a pair of novel counterflow moving bed SOx/NOx control device and flue gas processing system thereof, set up in denitration bed lower part and spout the ammonia pipe, spout the ammonia pipe and pass through the downward ammonia of evenly spraying of nozzle, replace original ammonia spraying smoke box, baffle and cloth funnel, showing the height that has reduced whole SOx/NOx control device's height and associated system, reduce the steel quantity at to a great extent, the lowering system height, make whole SOx/NOx control device's structure simplify, the preparation, the installation is simpler, make whole SOx/NOx control device than by the SOx/NOx control device's of the same flue gas handling capacity 50 meters height reduction about 45 meters, SOx/NOx control device's preparation and installation period have shortened 10 days.
drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of a novel countercurrent moving bed desulfurization and denitrification device provided by an embodiment of the present invention;
FIG. 2 is a view A-A of FIG. 1;
Fig. 3 is a schematic cross-sectional view of an ammonia injection pipe according to an embodiment of the present invention.
In the figure: 1. a first flue gas treatment system; 2. a second flue gas treatment system; 3. a desulfurization bed layer; 31. a flue gas inlet; 32. a gas-permeable funnel layer; 33. a flow control rake; 4. a denitration bed layer; 41. an ammonia spraying pipe; 42. a nozzle; 43. an ammonia gas inlet; 5. a gas barrier funnel layer; 51. a flue gas outlet; 6. an isolation layer; 61. a diversion pipeline; 62. a collection funnel; 71. a first activated carbon inlet; 72. a second activated carbon inlet; 73. an activated carbon outlet; 74. an activated carbon addition conduit; 75. an activated carbon outlet pipe; 8. activated carbon; 81. activated carbon packing profile.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
According to the specific embodiment of the present invention, as shown in fig. 1 to 3, the present invention provides a flue gas treatment system, which comprises a desulfurization bed layer 3 and a denitrification bed layer 4; activated carbon 8 is added into the desulfurization bed layer 3, and a flue gas inlet 31 is formed in the lower part of the desulfurization bed layer 3; the denitration bed layer 4 is positioned above the desulfurization bed layer 3 and is communicated with the desulfurization bed layer 3, activated carbon 8 is added into the denitration bed layer 4, and a flue gas outlet 51 is arranged above the denitration bed layer 4; an ammonia spraying pipe 41 is arranged in the denitration bed layer 4, an ammonia spraying opening is formed in the ammonia spraying pipe 41, and the ammonia spraying pipe 41 sprays ammonia gas into the denitration bed layer 4 through the ammonia spraying opening.
When the denitration catalyst is used, flue gas to be treated enters the desulfurization bed layer 3 from the flue gas inlet 31 at the lower part of the desulfurization bed layer 3, desulfurization is realized through the adsorption effect of the activated carbon 8, the desulfurized flue gas further rises to the denitration bed layer 4, ammonia gas is sprayed into the denitration bed layer 4 through the ammonia spraying pipe 41 positioned in the denitration bed layer 4, and the activated flue gas in the denitration bed layer 4 is activatedcatalyzing by carbon 8, NO in ammonia gas and flue gasxThe reaction generates nitrogen and water, thereby realizing denitration, and the flue gas after desulfurization and denitration is discharged through a flue gas outlet 51 above the denitration bed layer 4, thereby completing the whole desulfurization and denitration treatment process. The utility model discloses a flue gas processing system has cancelled baffle layer and cloth funnel layer that sets up between denitration bed 4 and desulfurization bed 3, and it is one kind to spout the ammonia and embeds, and the flue gas processing system of high reduction has reduced entire system's height, better realization the circulation of active carbon 8 between denitration bed 4 and desulfurization bed 3, simplified the structure.
further, the ammonia injection pipe 41 is located at the lower part of the denitration bed layer 4, ammonia is uniformly injected downwards by the ammonia injection pipe 41, so that the flue gas is fully mixed at the lower part of the denitration bed layer, the mixed flue gas fully reacts in the rising process of the whole denitration bed layer 4, and the denitration efficiency is improved conveniently.
Further, the ammonia injection pipe 41 is provided with a plurality of ammonia injection ports, the nozzles 42 are installed at the ammonia injection ports of the ammonia injection pipe 41, the ammonia injection pipe 41 injects ammonia gas into the denitration bed 4 through the nozzles 42, the nozzles 42 are inclined downward, and the injection direction of the nozzles 42 forms an angle of 35 ° to 50 ° (for example, 36 °, 37 °, 38 °, 39 °, 40 °, 41 °, 42 °, 43 °, 44 °, 45 °, 46 °, 47 °, 48 °, and 49 °) with the vertical direction. Set up nozzle 42 downward sloping, the ammonia meets with the flue gas with the ascending direction of flue gas, can ensure that flue gas and ammonia fully contact and mix, improves denitration efficiency greatly. In the embodiment of the present invention, the ammonia spraying pipe 41 is a square pipe, and the plane where the pipe wall of the ammonia spraying pipe 41 is located forms an included angle of 45 degrees with the horizontal plane. The nozzles 42 are installed on two tube wall planes at the lower part of the ammonia spraying tube 41, namely, the nozzles 42 are inclined downwards, and the included angle between the nozzles 42 and the vertical direction is 45 degrees. The square tube is used as the ammonia spraying tube 41, so that the opening of the mounting hole of the nozzle 42 and the positioning and mounting of the nozzle 42 are facilitated, and the spraying direction of the nozzle 42 can be conveniently determined.
Still preferably, both ends of the ammonia injection pipe 41 are respectively provided with an ammonia gas inlet 43. Because a single ammonia spraying pipe 41 is longer, the number of the nozzles 42 distributed on the ammonia spraying pipe 41 is large, and the arrangement of the two ammonia inlets 43 can ensure sufficient ammonia supply, thereby being convenient for the uniform ammonia spraying of each nozzle 42. A plurality of ammonia injection pipes 41 are arranged in the denitration bed 4, the plurality of ammonia injection pipes 41 are arranged in the denitration bed 4 at intervals, and the ammonia injection pipes 41 are horizontally arranged. The plurality of ammonia injection pipes 41 are located at the same level. The arrangement of a plurality of ammonia injection pipes 41 and nozzles 42 ensures that the nozzles 42 are uniformly distributed in the denitration bed 4. Therefore, a partition plate is not needed to interfere the flow direction of the flue gas, the ammonia spraying direction faces the flue gas direction, the ammonia gas can be in full contact with and react with the flue gas, and the denitration efficiency is guaranteed. The baffle cancellation, desulfurization bed 3 and denitration bed 4 just link into an organic whole, then no longer need additionally set up cloth funnel layer and communicate desulfurization bed 3 and denitration bed 4, and desulfurization bed 3 and denitration bed 4 can be filled up in proper order to the active carbon 8 that gets off on upper portion. Preferably, the plurality of nozzles 42 on the ammonia injection pipe 41 are staggered in the length direction of the ammonia injection pipe 41, and the staggered arrangement is described by taking the number of the nozzles as 3 as an example, the first nozzle is located on the left side of the ammonia injection pipe 41, the second nozzle is located on the right side of the ammonia injection pipe 41, and the third nozzle is located on the left side of the ammonia injection pipe 41, so that the ammonia gas can be fully diffused, and the sufficient contact with the flue gas is facilitated.
Further, the lower part of the desulfurization bed layer 3 is provided with an air-permeable funnel layer 32, and the flue gas inlet 31 is positioned on the side wall of the desulfurization bed layer 3 where the air-permeable funnel layer 32 is positioned. Through setting up ventilative funnel layer 32, the flue gas of being convenient for sees through the even rising of ventilative funnel layer 32 behind flue gas inlet 31 entering desulfurization bed 3 to make the active carbon 8 in the desulfurization bed 3 fully contact with the flue gas, improve desulfurization efficiency, avoid blockking of active carbon 8 and cause the flue gas to rise along 31 one side of flue gas inlet. Can bear the weight of the active carbon through setting up ventilative funnel layer 32 for the active carbon by the upper drop begins upwards to pile up from ventilative funnel layer 32, and then makes active carbon 8 fill up desulfurization bed 3 and denitration bed 4 in proper order. Preferably, a flow control rake 33 is disposed below the air-permeable funnel layer 32 for controlling the outflow speed of the activated carbon 8 in the air-permeable funnel layer 32. When the activated carbon flow control device is used, the flow rate of the activated carbon 8 is controlled by opening and closing the flow control rake 33, so that the outflow rate of the activated carbon 8 above is controlled, and when the activated carbon 8 is accumulated below the air-permeable funnel layer 32 to block the opening below the funnel, the activated carbon 8 stops falling from the air-permeable funnel layer 32, so that the outflow rate of the activated carbon 8 in the air-permeable funnel layer 32 is controlled. Specifically, the air-permeable funnel layer includes: a plurality of funnels, it is a horizontal plane side by side, leaves the clearance between two adjacent funnels, and it has the guide plate to cover above this clearance, and the flue gas gets into by the flue gas import, flows up and flows into in the clearance, and under the guide of guide plate, to the side below flow, through the interval between guide plate and the funnel, then gets into the accommodation space that the funnel formed, and the upflow realizes the rising of flue gas next. The baffles are preferably inverted V-shaped.
Further, the flue gas treatment system still includes choke funnel layer 5, and choke funnel layer 5 sets up in the top of denitration bed 4, and communicates with denitration bed 4. The gas barrier funnel layer 5 comprises a plurality of funnels connected together. A plurality of funnels are connected into one piece, can ensure the even tiling of active carbon. The activated carbon 8 enters the flue gas treatment system through the gas-barrier funnel layer 5, and the flue gas outlet 51 is located at the side wall of the gas-barrier funnel layer 5. Through setting up choke funnel layer 5, both be convenient for in active carbon 8 gets into denitration bed 4 through the funnel, the flue gas after denitration bed 4 of being convenient for again handles is discharged through exhanst gas outlet 51 at choke funnel layer 5.
The utility model also provides a novel counterflow moving bed SOx/NOx control device, SOx/NOx control device include two flue gas processing system, are first flue gas processing system 1 and second flue gas processing system 2 respectively, and first flue gas processing system 1 is located second flue gas processing system 2's top. The first flue gas treatment system 1 and the second flue gas treatment system 2 respectively and independently treat flue gas, so that the occupied area can be reduced by an accumulation mode, and the land is saved. Simultaneously, a plurality of independent flue gas processing systems make up into a SOx/NOx control device, are convenient for select the quantity of opening flue gas processing system according to the flue gas volume is nimble.
Further, be provided with isolation layer 6 between first flue gas processing system 1 and the second flue gas processing system 2, isolation layer 6 is isolated with first flue gas processing system 1 and second flue gas processing system 2, adds active carbon 8 in to second flue gas processing system 2 through isolation layer 6 to export active carbon 8 in first flue gas processing system 1 through isolation layer 6.
further, the upper part of the desulfurization and denitrification device is provided with a first activated carbon inlet 71 and a second activated carbon inlet 72, and the bottom end of the desulfurization and denitrification device is provided with an activated carbon outlet 73;
An activated carbon adding pipeline 74 and an activated carbon leading-out pipeline 75 are arranged in the desulfurization and denitrification device,
A collecting funnel 62 is arranged in the isolation layer 6 and used for collecting the activated carbon 8 in the first flue gas treatment system 1, and two ends of an activated carbon outlet pipeline 75 are communicated with the collecting funnel 62 and an activated carbon outlet 73 to lead out the activated carbon 8 of the first flue gas treatment system 1;
The second activated carbon inlet 72 is connected to an activated carbon addition pipe 74, and activated carbon 8 is added into the second flue gas treatment system 2 through the activated carbon addition pipe 74.
further, the isolation layer 6 is provided with a diversion pipeline 61, the activated carbon adding pipeline 74 is communicated into the second flue gas treatment system 2 through the diversion pipeline 61, and activated carbon 8 is uniformly added into the second flue gas treatment system 2. Through setting up isolation layer 6, it is isolated with first flue gas processing system 1 and second flue gas processing system 2, avoid flowing of flue gas to scurry, simultaneously, be convenient for add active carbon 8 in the SOx/NOx control device top is unified, collect the active carbon 8 after the reaction is accomplished in SOx/NOx control device's below is unified. Reference numeral 81 in fig. 1 denotes an activated carbon deposition profile 81 under the gas barrier funnel layer 5, the gas permeable funnel layer 32, and the collection funnel 62. In addition to the above-described control of the passage speed of the activated carbon 8 by the flow control rake 33 to effect the replacement of the activated carbon 8, the replacement of the activated carbon 8 can be achieved by adjusting the addition speed of the activated carbon 8 at the first activated carbon inlet 71 and the second activated carbon inlet 72. Of course, the two components are combined for use, so that a better effect can be achieved.
The utility model discloses a novel counterflow moving bed SOx/NOx control device is when using, first active carbon import 71 and second active carbon import 72 through SOx/NOx control device upper portion add active carbon 8 to desulfurization bed 3 and denitration bed 4 and all fill active carbon 8 to first flue gas processing system 1 and second flue gas processing system 2 respectively, then let in first flue gas processing system 1 and second flue gas processing system 2 respectively with pending flue gas, the flue gas gets into desulfurization bed 3, adsorb the Sox in the flue gas through active carbon 8's adsorption, thereby realize the desulfurization, SOx/NOx control deviceThe flue gas further rises to the denitration bed layer 4, ammonia is sprayed into the denitration bed layer 4 through an ammonia spraying pipe 41 positioned in the denitration bed layer 4, and under the catalysis of active carbon 8 in the denitration bed layer 4, the ammonia and NO in the flue gasxThe reaction generates nitrogen and water, thereby realizing denitration, and the flue gas after desulfurization and denitration reaches the emission standard and is discharged through a flue gas outlet 51. The utility model discloses a flue gas is ascending for active carbon 8 against the current in the SOx/NOx control device use, and active carbon 8 can follow SOx/NOx control device discharge and change, consequently this SOx/NOx control device is called counterflow removal SOx/NOx control device.
To sum up, the utility model provides a pair of novel counterflow moving bed SOx/NOx control device and flue gas processing system thereof sets up in denitration bed lower part and spouts the ammonia pipe, spouts the ammonia pipe and passes through the downward ammonia of evenly spraying of nozzle, replaces original ammonia spraying smoke box, baffle and cloth funnel, is showing the height that has reduced whole SOx/NOx control device and associated system, reduces the steel quantity at to a great extent, the low system height. The structure of the whole desulfurization and denitrification device is simplified, the manufacture and the installation are simpler, and the manufacture and the installation period of the desulfurization and denitrification device are shortened.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A flue gas treatment system, characterized in that the flue gas treatment system comprises:
the desulfurization bed is added with active carbon, and the lower part of the desulfurization bed is provided with a flue gas inlet;
The denitration bed layer is positioned above the desulfurization bed layer and is communicated with the desulfurization bed layer, activated carbon is added into the denitration bed layer, and a flue gas outlet is formed above the denitration bed layer;
And an ammonia spraying pipe is arranged in the denitration bed layer, an ammonia spraying opening is formed in the ammonia spraying pipe, and the ammonia spraying pipe sprays ammonia gas into the denitration bed layer through the ammonia spraying opening.
2. the flue gas treatment system of claim 1, wherein the ammonia injection pipe is positioned at the lower part of the denitration bed layer, and the ammonia injection pipe uniformly injects ammonia gas downwards.
3. The flue gas treatment system of claim 2, wherein a nozzle is installed at an ammonia injection port of the ammonia injection pipe, the ammonia injection pipe injects ammonia gas into the denitration bed through the nozzle, the nozzle is inclined downwards, and an included angle between the injection direction of the nozzle and the vertical direction is 35-50 degrees;
And ammonia inlets are respectively arranged at two ends of the ammonia spraying pipe.
4. The flue gas treatment system of claim 3, wherein a plurality of ammonia injection pipes are arranged in the denitrification bed layer, and the plurality of ammonia injection pipes are arranged in the denitrification bed layer at intervals; the ammonia spraying pipe is horizontally arranged.
5. The flue gas treatment system of claim 1, wherein a gas permeable funnel layer is arranged at the lower part of the desulfurization bed layer, and the flue gas inlet is positioned on the side wall of the desulfurization bed layer where the gas permeable funnel layer is positioned; and a flow control rake is arranged below the air-permeable funnel layer and used for controlling the outflow speed of the activated carbon in the air-permeable funnel layer.
6. The flue gas treatment system of claim 1, further comprising a gas barrier funnel layer disposed above and in communication with the denitration bed; the choke funnel layer comprises a plurality of connected funnels, activated carbon enters the flue gas treatment system through the choke funnel layer, and the flue gas outlet is located on the side wall of the choke funnel layer.
7. a novel countercurrent moving bed desulfurization and denitrification device is characterized by comprising two flue gas treatment systems, namely a first flue gas treatment system and a second flue gas treatment system, wherein the first flue gas treatment system is positioned above the second flue gas treatment system;
the flue gas treatment system is the flue gas treatment system as claimed in any one of claims 1 to 6.
8. The novel counter-flow moving bed desulfurization and denitrification device according to claim 7, wherein an isolation layer is arranged between the first flue gas treatment system and the second flue gas treatment system, the isolation layer isolates the first flue gas treatment system from the second flue gas treatment system, activated carbon is added into the second flue gas treatment system through the isolation layer, and the activated carbon in the first flue gas treatment system is led out through the isolation layer.
9. The novel counter-flow moving bed desulfurization and denitrification device according to claim 8, wherein a first activated carbon inlet and a second activated carbon inlet are arranged at the upper part of the desulfurization and denitrification device, and an activated carbon outlet is arranged at the bottom end of the desulfurization and denitrification device;
An activated carbon adding pipeline and an activated carbon leading-out pipeline are arranged in the desulfurization and denitrification device;
A collecting funnel is arranged in the isolating layer and used for collecting the activated carbon in the first flue gas treatment system, and two ends of the activated carbon outlet pipeline are communicated with the collecting funnel and the activated carbon outlet to lead out the activated carbon of the first flue gas treatment system;
And the second activated carbon inlet is connected with the activated carbon adding pipeline, and activated carbon is added into the second flue gas treatment system through the activated carbon adding pipeline.
10. The novel counter-flow moving bed desulfurization and denitrification device according to claim 9, wherein the isolation layer is provided with a diversion pipeline, the activated carbon adding pipeline is communicated into the second flue gas treatment system through the diversion pipeline, and activated carbon is uniformly added into the second flue gas treatment system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227342A (en) * | 2019-06-03 | 2019-09-13 | 北京中航泰达环保科技股份有限公司 | A kind of novel reverse streaming moving bed desulfuring and denitrifying apparatus and its smoke processing system |
| CN111871177A (en) * | 2020-07-30 | 2020-11-03 | 中国科学院过程工程研究所 | Modular flue gas desulfurization and denitrification purification system and purification method adopting same |
| CN112870959A (en) * | 2021-03-19 | 2021-06-01 | 中国华电科工集团有限公司 | Ammonia spraying device and flue gas denitration device |
| CN112973426A (en) * | 2021-03-19 | 2021-06-18 | 中国华电科工集团有限公司 | Ammonia spraying device and flue gas denitration device |
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2019
- 2019-06-03 CN CN201920824228.0U patent/CN209791290U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227342A (en) * | 2019-06-03 | 2019-09-13 | 北京中航泰达环保科技股份有限公司 | A kind of novel reverse streaming moving bed desulfuring and denitrifying apparatus and its smoke processing system |
| CN111871177A (en) * | 2020-07-30 | 2020-11-03 | 中国科学院过程工程研究所 | Modular flue gas desulfurization and denitrification purification system and purification method adopting same |
| CN112870959A (en) * | 2021-03-19 | 2021-06-01 | 中国华电科工集团有限公司 | Ammonia spraying device and flue gas denitration device |
| CN112973426A (en) * | 2021-03-19 | 2021-06-18 | 中国华电科工集团有限公司 | Ammonia spraying device and flue gas denitration device |
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