CN210495808U - Multistage fluidized bed device - Google Patents
Multistage fluidized bed device Download PDFInfo
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- CN210495808U CN210495808U CN201921316057.7U CN201921316057U CN210495808U CN 210495808 U CN210495808 U CN 210495808U CN 201921316057 U CN201921316057 U CN 201921316057U CN 210495808 U CN210495808 U CN 210495808U
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Abstract
The utility model discloses a multi-stage fluidized bed device, which comprises a flue, wherein a third bearing tray, a second bearing tray and a first bearing tray are sequentially arranged in the flue from top to bottom, dense air holes are respectively arranged on the third bearing tray, the second bearing tray and the first bearing tray, and a third fan installation pipe, a second fan installation pipe and a first fan installation pipe are sequentially and correspondingly arranged on the lower surfaces of the third bearing tray, the second bearing tray and the first bearing tray, and a third fan, a second fan and a first fan are sequentially and correspondingly arranged in the third fan installation pipe, the second fan installation pipe and the first fan installation pipe, the multi-stage fluidized bed device adopts the hierarchical structure of the multi-stage fluidized bed device to solve the fluidization problem of an adsorbent in a fluidized bed so as to improve the adsorption capacity of the adsorbent to pollutants in flue gas and change the fluidization state of the fluidized bed by adjusting the wind power of the fans, such as fluidization height and density.
Description
Technical Field
The utility model belongs to the technical field of the fluidized bed, concretely relates to multistage fluidized bed device.
Background
In the adsorption tower, the SO in the flue gas is generally adsorbed by adopting an adsorbent such as activated carbon2And gaseous pollutants such as NOx, the adsorption effect is far different from that of a fluidized bed if the adsorption is carried out by adopting a fixed bed mode in a laboratory test. However, for some adsorbing materials, fluidization is difficult to achieve due to factors such as gravity, density and adhesion, or due to factors such as small gas flow rate and large device cross-sectional area in a fluidized bed device, or fluidization height and fluidization density are difficult to achieve expectations, and the problems need to be solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multistage fluidized bed device to solve some adsorbing material now that propose in the above-mentioned background art, because factors such as its gravity, density, adhesion, or because in the fluidized bed device because the gas flow rate is little, the device sectional area is big and waits the factor and be difficult to realize the fluidization, perhaps fluidization height, fluidization density are difficult to reach anticipated problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multistage fluidized bed device, includes the flue, the inside of flue is by last third bearing tray, second bearing tray and the first bearing tray of installing in proper order under to, all seted up intensive gas pocket on third bearing tray, second bearing tray and the first bearing tray, and the lower surface of third bearing tray, second bearing tray and first bearing tray corresponds in proper order and installs third fan installation pipe, second fan installation pipe and first fan installation pipe, the inside of third fan installation pipe, second fan installation pipe and first fan installation pipe corresponds in proper order and installs third fan, second fan and first fan, third fan, second fan and first fan all are through power cord and external switch electric connection, the switch passes through power cord electric connection to power supply.
Preferably, the bottoms of the third fan installation pipe, the second fan installation pipe and the first fan installation pipe are of a closed structure, and the tops of the third fan installation pipe, the second fan installation pipe and the first fan installation pipe are provided with air outlet holes.
Preferably, the outer pipe walls of the third fan installation pipe, the second fan installation pipe and the first fan installation pipe are parallel to the inner pipe wall of the flue, and the distance between the outer pipe walls of the third fan installation pipe, the second fan installation pipe and the first fan installation pipe and the inner pipe wall of the flue is equal.
Preferably, the third fan, the second fan and the first fan are sequentially enhanced by the rotating wind power from top to bottom.
Preferably, the bottom opening of the flue is a flue gas inlet, and the top opening of the flue is a flue gas outlet.
Preferably, the upper surfaces of the third bearing tray, the second bearing tray and the first bearing tray are provided with activated carbon flue gas adsorbent.
Compared with the prior art, the beneficial effects of the utility model are that: the multistage fluidized bed device has a scientific and reasonable structure, is safe and convenient to use, integrally adopts the hierarchical structure of the multistage fluidized bed device, solves the fluidization problem of the adsorbent in the fluidized bed, improves the adsorption capacity of the adsorbent on pollutants in flue gas, and can change the fluidization state of the fluidized bed, such as the conditions of fluidization height, density and the like, by adjusting the wind power of the fan; the primary full mixing contact of the flue gas and the adsorbent is realized by adopting multi-stage fluidization at the first stage and controlling the large air volume through a fan, and the splashing small-particle adsorbent enters the second stage of the fluidized bed due to the large fluidization height, so that the loss of the adsorbent is avoided; the second stage is used for enabling the flue gas to be in full contact with the adsorbent for a longer time, so that the adsorption effect is improved, the used air volume is smaller than that of the first stage, and the fluidization height is reduced; in the third stage, the recovery of the adsorbent is realized by adjusting the wind power of the fan and using smaller wind quantity, so that the overflow loss of the adsorbent is avoided; through the adjustment of the different fluidization state of adsorption system, can obviously improve the adsorption effect of pollutant in the flue gas, and inside third fan installation pipe by last to installing in proper order down, the bottom closed structure of second fan installation pipe and first fan installation pipe for the flue gas is by third fan installation pipe, circulate between the outer pipe wall of second fan installation pipe and first fan installation pipe and the interior pipe wall of flue, the cross-sectional area of device gas circulation has been reduced, effectively improve fluidization height, fluidization density.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-air hole, 2-first fan, 3-flue, 4-first bearing tray, 5-first fan installation pipe, 6-second bearing tray, 7-third bearing tray, 8-second fan, 9-third fan, 10-second fan installation pipe and 11-third fan installation pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a multistage fluidized bed device, including flue 3, flue 3's inside is by last third tray 7 of installing in proper order down, second tray 6 and first tray 4 that holds, third tray 7, intensive gas pocket 1 has all been seted up on second tray 6 and the first tray 4 that holds, and third tray 7, the lower surface of second tray 6 and first tray 4 corresponds in proper order and installs third fan installation pipe 11, second fan installation pipe 10 and first fan installation pipe 5, third fan installation pipe 11, the inside of second fan installation pipe 10 and first fan installation pipe 5 corresponds in proper order and installs third fan 9, second fan 8 and first fan 2, third fan 9, second fan 8 and first fan 2 all are through power cord and external switch electric connection, the switch passes through electric connection to power supply.
In this embodiment, preferably, outer pipe walls of the third fan installation pipe 11, the second fan installation pipe 10 and the first fan installation pipe 5 are parallel to an inner pipe wall of the flue 3, and distances between the outer pipe walls of the third fan installation pipe 11, the second fan installation pipe 10 and the first fan installation pipe 5 and the inner pipe wall of the flue 3 are equal.
In this embodiment, preferably, the bottoms of the third fan installation pipe 11, the second fan installation pipe 10 and the first fan installation pipe 5 are both of a closed structure, and the tops of the third fan installation pipe 11, the second fan installation pipe 10 and the first fan installation pipe 5 are provided with air outlets, so as to ensure that the flue gas circulates between the outer pipe wall of the third fan installation pipe 11, the second fan installation pipe 10 and the first fan installation pipe 5 and the inner pipe wall of the flue 3, reduce the cross-sectional area of gas circulation of the device, and effectively improve the fluidization height and the fluidization density.
In the embodiment, preferably, the third fan 9, the second fan 8 and the first fan 2 are sequentially enhanced by the rotating wind power from top to bottom, the first fan 2 controls the large wind volume to realize the primary full mixing contact of the flue gas and the adsorbent, and the large fluidization height enables the splashed small-particle adsorbent to enter the second stage of the fluidized bed, so that the loss of the adsorbent is avoided; the second fan 8 is used for enabling the flue gas to be in full contact with the adsorbent for a longer time, so that the adsorption effect is improved, the used air volume is smaller than that of the first level, and the fluidization height is reduced; the third fan 9 realizes the recovery of the adsorbent by adjusting the wind power of the fan and using smaller wind quantity, thereby avoiding the overflow loss of the adsorbent.
In this embodiment, preferably, the bottom opening of the flue 3 is a flue gas inlet, and the top opening of the flue 3 is a flue gas outlet, so as to ensure that the flue gas passes through the first tray 4, the second tray 6 and the third tray 7 in sequence in the flue gas discharging process.
In this embodiment, preferably, activated carbon flue gas adsorbents are placed on the upper surfaces of the third bearing tray 7, the second bearing tray 6 and the first bearing tray 4, so that the activated carbon flue gas adsorbents are adsorbed in a layered manner, the contact time of the adsorbents is long, and the flue gas purification effect is better.
The working principle is as follows: the utility model discloses convenient and safe in utilization, correctly insert flue 3 through the flue gas inlet port and can normally work, in the emission process, the flue gas circulates between the outer pipe wall of flue 3 and the inner pipe wall of flue 3 by third fan installation pipe 11, second fan installation pipe 10 and first fan installation pipe 5, the cross-sectional area of device gas circulation has been reduced, effectively improve fluidization height, fluidization density, simultaneously, first fan 2 controls big amount of wind and realizes the first intensive mixing contact of flue gas and adsorbent, the granule adsorbent that splashes enters fluidized bed second level is made to great fluidization height, avoid the loss of adsorbent; the second fan 8 is used for enabling the flue gas to be in full contact with the adsorbent for a longer time, so that the adsorption effect is improved, the used air volume is smaller than that of the first level, and the fluidization height is reduced; the third fan 9 realizes the recovery of the adsorbent by adjusting the wind power of the fan and using smaller wind quantity, thereby avoiding the overflow loss of the adsorbent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A multistage fluidized bed apparatus comprising a flue (3), characterized in that: a third bearing tray (7), a second bearing tray (6) and a first bearing tray (4) are sequentially arranged in the flue (3) from top to bottom, dense air holes (1) are formed in the third bearing tray (7), the second bearing tray (6) and the first bearing tray (4), a third fan installation pipe (11), a second fan installation pipe (10) and a first fan installation pipe (5) are sequentially and correspondingly arranged on the lower surfaces of the third bearing tray (7), the second bearing tray (6) and the first bearing tray (4), a third fan (9), a second fan (8) and a first fan (2) are sequentially and correspondingly arranged in the third fan installation pipe (11), the second fan installation pipe (10) and the first fan installation pipe (5), and the third fan (9), the second fan (8) and the first fan (2) are electrically connected with an external switch through power lines, the switch is electrically connected to a power supply through a power line.
2. A multistage fluidized bed apparatus according to claim 1, wherein: the outer pipe walls of the third fan installation pipe (11), the second fan installation pipe (10) and the first fan installation pipe (5) are parallel to the inner pipe wall of the flue (3), and the distance between the outer pipe walls of the third fan installation pipe (11), the second fan installation pipe (10) and the first fan installation pipe (5) and the inner pipe wall of the flue (3) is equal.
3. A multistage fluidized bed apparatus according to claim 2, wherein: the bottom of the third fan installation pipe (11), the bottom of the second fan installation pipe (10) and the bottom of the first fan installation pipe (5) are both of a closed structure, and air outlet holes are formed in the tops of the third fan installation pipe (11), the second fan installation pipe (10) and the top of the first fan installation pipe (5).
4. A multistage fluidized bed apparatus according to claim 1, wherein: and the third fan (9), the second fan (8) and the first fan (2) are sequentially enhanced by rotating wind power from top to bottom.
5. A multistage fluidized bed apparatus according to claim 1, wherein: the bottom opening of the flue (3) is a flue gas inlet, and the top opening of the flue (3) is a flue gas discharge port.
6. A multistage fluidized bed apparatus according to claim 1, wherein: and the upper surfaces of the third bearing tray (7), the second bearing tray (6) and the first bearing tray (4) are provided with activated carbon flue gas adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921316057.7U CN210495808U (en) | 2019-08-14 | 2019-08-14 | Multistage fluidized bed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921316057.7U CN210495808U (en) | 2019-08-14 | 2019-08-14 | Multistage fluidized bed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210495808U true CN210495808U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921316057.7U Active CN210495808U (en) | 2019-08-14 | 2019-08-14 | Multistage fluidized bed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210495808U (en) |
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2019
- 2019-08-14 CN CN201921316057.7U patent/CN210495808U/en active Active
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