CN214347200U - Fly ash impurity remover for power plant - Google Patents
Fly ash impurity remover for power plant Download PDFInfo
- Publication number
- CN214347200U CN214347200U CN202023166302.6U CN202023166302U CN214347200U CN 214347200 U CN214347200 U CN 214347200U CN 202023166302 U CN202023166302 U CN 202023166302U CN 214347200 U CN214347200 U CN 214347200U
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- China
- Prior art keywords
- fly ash
- side wall
- shell
- impurity removing
- power plant
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000010881 fly ash Substances 0.000 title claims abstract description 98
- 239000012535 impurity Substances 0.000 title claims abstract description 72
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 37
- 239000002956 ash Substances 0.000 claims abstract description 35
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 238000010926 purge Methods 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims description 15
- 230000005294 ferromagnetic effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 239000010883 coal ash Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a fly ash impurity remover for a power plant, which belongs to the field of power generation and comprises a shell, wherein the upstream side wall and the downstream side wall of the shell are respectively provided with a fly ash inlet and a fly ash outlet, and the fly ash inlet and the fly ash outlet are respectively connected with an upstream pipeline and a downstream pipeline for installing a stop valve; an impurity removing net is arranged on the inner side wall of the shell and is positioned between the fly ash inlet and the fly ash outlet so as to divide the shell into an impurity removing section in the upstream direction and an ash discharging section in the downstream direction; a magnet is arranged in the impurity removing section, and an observation window is arranged on the side wall of the impurity removing section; a baffle is arranged on the side wall of the ash discharging section, and a second purging port is arranged on the side wall of the ash discharging section to provide protective airflow for the baffle; a manhole is arranged on the side wall of the impurity removing section, and a manhole door is installed on the manhole. The utility model discloses structure and installation are simple, area is little, and the edulcoration work load is little, personnel need not enter the ash storehouse, the security performance is high, can not produce advantages such as injury to the people.
Description
Technical Field
The utility model relates to a power generation technical field, in particular to fly ash shaker of power plant.
Background
Fly ash is fine ash collected from flue gas generated after coal combustion, and is main solid waste discharged from coal-fired power plants. The fly ash has the advantages of good water stability and strength, available materials on site, low cost, convenient construction and the like, and is widely used in the construction industry, for example, in high-grade highways, the mixture of the fly ash, cement and gravel is commonly used as a subbase of a pavement structure layer.
However, fly ash often also contains impurities such as: iron wires, canvas gloves and nylon wire bags which are discarded in the overhaul of the coal economizer are mainly iron pieces formed by falling off of inner sleeves in the fly ash conveying pipeline. At present, the ash conveying pipe of a thermal power plant adopts a double-sleeve structure, and due to factors of a welding process and the influence of high temperature, high pressure and high friction of the fly ash, a large number of inner sleeves in an ash conveying pipeline fall off, so that impurities are formed and mixed into the fly ash, and finally the fly ash is conveyed into an ash storehouse to be stored for subsequent treatment and use.
However, impurities in the fly ash are used directly without treatment, and the following possible influences are caused: 1. the sundries in the fly ash can cause the blocking of the blanking feeder, and because the frequent blocking of the blanking feeder brings huge maintenance amount to the overhaul and maintenance, many power plants remove the blanking feeder and replace the blanking feeder by a manual regulating valve, so that the remote control cannot be realized; 2. the ash storehouse cleaning work is carried out on the power plant every year, the ash storehouse cleaning work is in the high wind industry, casualty accidents caused by ash storehouse cleaning often occur in thermal power plants all over the country, and safety production pressure is brought to the power plant; 3. when the fly ash is transported to end customers, such as cement plants and mixing plants, the damage of downstream equipment and unqualified process generated in cement construction are caused sometimes; 4. the output pipeline of the ash transporting tank truck is blocked, so that large pressure is generated in the ash tank, the ash tank is exploded, and potential safety hazards are brought to equipment and life.
SUMMERY OF THE UTILITY MODEL
To the problem that the fly ash edulcoration work risk of power plant that prior art exists is high, efficient, the utility model aims to provide a fly ash edulcorator of power plant.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a fly ash impurity remover for a power plant comprises
The device comprises a shell, a first pipeline, a second pipeline and a third pipeline, wherein the shell is of a closed structure, the upstream side wall and the downstream side wall of the shell are respectively provided with a fly ash inlet and a fly ash outlet, the fly ash inlet and the fly ash outlet are respectively connected with an upstream pipeline and a downstream pipeline, and stop valves are respectively arranged on the upstream pipeline and the downstream pipeline;
the impurity removing net is arranged on the inner side wall of the shell and is positioned between the fly ash inlet and the fly ash outlet so that the shell is divided into an impurity removing section in the upstream direction and an ash discharging section in the downstream direction;
the magnet is fixedly arranged in the impurity removing section to adsorb ferromagnetic impurities in the fly ash entering the impurity removing section;
the observation window is arranged on the side wall of the impurity removing section;
the baffle is fixedly arranged on the side wall of the ash discharging section and is positioned in front of the fly ash outlet so as to block impurities;
the second purging port is arranged on the side wall of the ash discharging section and is opposite to the baffle plate so as to provide protective gas flow; and
and the manhole is arranged on the side wall of the impurity removal section, and a manhole door is installed on the manhole.
Preferably, the baffle is arranged on the inner top wall of the ash discharging section, the second purging port is arranged at the top of the ash discharging section, and the second purging port is divided by the baffle so that the two sides of the baffle are provided with the protective gas flow.
Preferably, the trash net is made of a temperature-resistant and wear-resistant material.
Preferably, the fly ash outlet is disposed at an upper portion of a downstream side wall of the housing, and the fly ash inlet is disposed at an upper or lower portion of an upstream side wall of the housing.
Preferably, when one of the magnet and the fly ash inlet is provided at an upper portion of the housing, the other of the magnet and the fly ash inlet is provided at a lower portion of the housing.
Further, when the magnet is arranged at the lower part of the shell, a first blowing opening is arranged on the side wall of the impurity removing section to blow the fly ash on the magnet.
Preferably, there are two fly ash inlets, and both of the two fly ash inlets are disposed at a lower portion of the upstream sidewall of the casing.
Preferably, the viewing window is provided in an upstream side wall of the housing.
By adopting the technical scheme, firstly, due to the arrangement of the impurity removing net, impurities in the fly ash input from an upstream pipeline cannot directly pass through but are intercepted in the impurity removing section for waiting for cleaning, and only the fly ash meeting the requirements is allowed to pass through; due to the arrangement of the magnet in the impurity removal section, ferromagnetic impurities, such as iron and the like in the fly ash can be magnetically adsorbed and fixed, so that the magnet and the impurity removal net work in a division manner and are respectively used for intercepting ferromagnetic impurities and non-ferromagnetic impurities in the fly ash; due to the arrangement of the first blowing opening, the magnet cannot be covered by the fly ash, so that the magnetism of the magnet cannot be blocked all the time; due to the arrangement of the observation window, the manhole and the manhole door, a worker can conveniently observe the impurity removal condition in the impurity remover and timely clean removed impurities through the manhole; and because the stop valves are arranged on the upstream pipeline and the downstream pipeline, the cleaning work can be carried out only by closing the stop valves, and the frequent stop and start operations of upstream equipment are avoided. The scheme has the advantages of small impurity removal workload, no need of personnel entering the ash storehouse, high safety performance, no harm to people, simple equipment structure, small maintenance amount, simple installation process and small occupied area.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
In the figure, 1-shell, 11-fly ash inlet, 12-upstream pipeline, 13-fly ash outlet, 14-downstream pipeline, 15-impurity removal section, 16-ash discharge section, 2-stop valve, 3-impurity removal net, 4-magnet, 5-observation window, 6-first blowing port, 7-baffle, 8-second blowing port and 9-manhole.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship of the structure of the present invention based on the drawings, and are only for the convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example one
A fly ash impurity remover for a power plant is shown in figure 1 and comprises a shell 1, a stop valve 2, an impurity removing net 3, a magnet 4, an observation window 5, a first blowing port 6, a baffle 7, a second blowing port 8 and a manhole 9.
The casing 1 is a closed structure, and may be made of metal material, and lined with a temperature-resistant and wear-resistant protective lining. The casing 1 is configured in a rectangular or cylindrical structure or other shape, and its two horizontal side walls are an upstream side wall (right side wall) and a downstream side wall (left side wall), respectively. The upper part of the upstream side wall is provided with a fly ash inlet 11, the fly ash inlet 11 is connected with an upstream pipeline 12, the upstream pipeline 12 can also be an existing ash conveying pipeline of a power plant, the upstream pipeline 12 is provided with a stop valve 2, and the stop valve 2 is configured as a manual valve, or in one embodiment, the stop valve 2 is configured as an electric or pneumatic valve. Correspondingly, a fly ash outlet 13 is formed in the upper portion of the downstream side wall, a downstream pipeline 14 is connected to the fly ash outlet 13, similarly, the downstream pipeline 14 may also be an existing ash conveying pipeline of a power plant, and the downstream pipeline 14 is also provided with the stop valve 2.
The impurity removing net 3 is a net structure made of temperature-resistant and wear-resistant materials, such as plastic net ropes or iron wires. Impurity removal net 3 is vertical and is arranged inside casing 1 to impurity removal net 3 is located the position between fly ash import 11 and fly ash export 13, and impurity removal net 3 is seamless connection on the inside circumference lateral wall of casing 1 simultaneously, thereby is divided into impurity removal section 15 that is in the upstream direction and is in the ash discharge section 16 of downstream direction with casing 1.
The magnet 4 is fixedly installed inside the impurity removing section 15, so as to adsorb ferromagnetic impurities in the fly ash entering the impurity removing section 15, and the magnet 4 is arranged to be staggered with the fly ash inlet 11 in height position, for example, in the embodiment, the fly ash inlet 11 is arranged at the upper position of the casing 1, and the magnet 4 is fixedly installed on the bottom wall inside the casing 1 (in the impurity removing section 15). The magnet 4 is configured as a permanent magnet, for example, a rubidium magnet, and is fitted in a mounting groove of the housing 1 or fixed by a screw.
The observation window 5 is arranged on the side wall of the impurity removing section 15 (namely the upstream side wall of the shell 1), so that the impurity removing condition and the working condition of the magnet 4 can be observed conveniently by external workers.
The impurity removing net 3 and the magnet 4 are arranged, so that ferromagnetic impurities, such as iron, in the fly ash input from the upstream pipeline 12 can be adsorbed and fixed by the magnet 4, while non-ferromagnetic impurities can be intercepted by the impurity removing net 3, and only the fly ash meeting the requirements is allowed to flow out.
Wherein, the side wall of the impurity removing section 15 of the first blowing opening 6 is used for blowing the fly ash covered on the magnet 4, thereby preventing the magnetism of the magnet 4 from being blocked. In consideration of the fact that the blowing airflow input by the first blowing port 6 does not affect the input of the fly ash, in the embodiment, the first blowing port 6 is arranged on the upstream side wall of the shell 1, so that the direction of the blowing airflow input by the first blowing port 6 is the same as the flowing direction of the fly ash, and meanwhile, the blowing efficiency can be effectively guaranteed.
Wherein the baffle 7 is fixedly arranged on the side wall of the ash discharging section 16, and the baffle 7 is positioned in front of the fly ash outlet 13 to block sundries which may pass through the impurity removing net 3 from flowing out of the shell 1. For example, in the present embodiment, the fly ash outlet 13 is disposed at an upper position of the downstream side wall (the side wall of the ash discharging section 16) of the casing 1, and accordingly, the baffle 7 is fixedly mounted on the inner top wall of the ash discharging section 16. It will be appreciated that the baffle 7 is abraded by the fly ash impinging on its surface due to the influence of the fly ash, and therefore in this embodiment, the second purge port 8 is provided in the side wall of the ash discharge section 16, and the input purge gas flow from the second purge port 8 is directed against the baffle 7, so as to provide a protective gas flow to the surface of the baffle 7, thereby acting as a gas seal. In order to improve the protection range and the protection effect of the baffle 7, the second purging opening 8 is arranged at the top of the ash discharging section 16, and is positioned in such a way that the second purging opening 8 is divided by the baffle 7, so that both sides (the side facing the inflow of the fly ash and the side facing the fly ash outlet 13) of the baffle 7 have the protection airflow.
In order to facilitate cleaning of sundries intercepted inside the impurity removing section 15, in the embodiment, a manhole 9 is arranged on the side wall of the impurity removing section 15, and a manhole door is installed on the manhole 9. For example, a manhole 9 is opened on the front side wall of the housing 1. The manhole door can be fixed through bolts, and this embodiment is not described again.
When the device is used, after the manhole door is closed and the stop valves 2 on the upstream pipeline and the downstream pipeline are opened, the fly ash is conveyed from the upstream direction and enters the impurity removal section 15 from the fly ash inlet 11, ferromagnetic impurities are firstly attracted and fixed by the magnet 4, non-ferromagnetic impurities are blocked by the impurity removal net 3 arranged behind, the fly ash meeting the requirements enters the ash discharge section 16 through the impurity removal net 3 and continuously flows to the downstream through the fly ash outlet 13; meanwhile, sundries which accidentally pass through the impurity removing net 3 are also blocked by the baffle 7, so that the sundries cannot directly enter the fly ash outlet 13 and fall down to be left in the shell 1 to a certain extent; the staff can be through the inside edulcoration condition of observation window 5 timely observation edulcoration ware to in time clear up the debris of being held back through manhole 9, and only need close stop valve 2 and can clear up, need not make upstream equipment shut down.
Example two
The difference from the first embodiment is that: in the embodiment shown in fig. 2, the fly ash inlet 11 is disposed at the lower portion of the upstream side wall (right side wall) of the casing 1, and accordingly, the magnet 4 is fixedly mounted on the top wall of the inside of the casing 1 (the trash removal section 15 therein). Further, it is understood that since the magnet 4 is provided in the upper portion of the casing 1, the fly ash is hard to fall thereon, and therefore, in the present embodiment, the first purge port 6 is not necessarily provided.
EXAMPLE III
The difference from the second embodiment is that: as shown in fig. 3, in the present embodiment, two fly ash inlets 11 are provided, and both fly ash inlets 11 are provided at a lower position of the upstream side wall of the casing 1, while the installation position of the magnet 4 is unchanged, and the upstream pipes 12 described above are connected to both fly ash inlets 11, and each upstream pipe 12 is provided with the shutoff valve 2.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (8)
1. A fly ash shaker of power plant which is characterized in that: comprises that
The device comprises a shell, a first pipeline, a second pipeline and a third pipeline, wherein the shell is of a closed structure, the upstream side wall and the downstream side wall of the shell are respectively provided with a fly ash inlet and a fly ash outlet, the fly ash inlet and the fly ash outlet are respectively connected with an upstream pipeline and a downstream pipeline, and stop valves are respectively arranged on the upstream pipeline and the downstream pipeline;
the impurity removing net is arranged on the inner side wall of the shell and is positioned between the fly ash inlet and the fly ash outlet so that the shell is divided into an impurity removing section in the upstream direction and an ash discharging section in the downstream direction;
the magnet is fixedly arranged in the impurity removing section to adsorb ferromagnetic impurities in the fly ash entering the impurity removing section;
the observation window is arranged on the side wall of the impurity removing section;
the baffle is fixedly arranged on the side wall of the ash discharging section and is positioned in front of the fly ash outlet so as to block impurities;
the second purging port is arranged on the side wall of the ash discharging section and is opposite to the baffle plate so as to provide protective gas flow; and
and the manhole is arranged on the side wall of the impurity removal section, and a manhole door is installed on the manhole.
2. The power plant fly ash shaker of claim 1, characterized in that: the baffle is arranged on the inner top wall of the ash discharging section, the second purging port is arranged at the top of the ash discharging section, and the second purging port is divided by the baffle so that the two sides of the baffle are provided with the protective gas flow.
3. The power plant fly ash shaker of claim 1, characterized in that: the impurity removing net is made of temperature-resistant and wear-resistant materials.
4. The power plant fly ash shaker of claim 1, characterized in that: the fly ash outlet is arranged at the upper part of the downstream side wall of the shell, and the fly ash inlet is arranged at the upper part or the lower part of the upstream side wall of the shell.
5. The power plant fly ash shaker of claim 4, characterized in that: when one of the magnet and the fly ash inlet is disposed at an upper portion of the housing, the other of the magnet and the fly ash inlet is disposed at a lower portion of the housing.
6. The power plant fly ash shaker of claim 5, characterized in that: when the magnet is arranged at the lower part of the shell, a first blowing opening is arranged on the side wall of the impurity removing section to blow the fly ash on the magnet.
7. The power plant fly ash shaker of claim 5, characterized in that: the coal ash inlet is arranged at the lower part of the upstream side wall of the shell.
8. The power plant fly ash shaker of claim 1, characterized in that: the viewing window is disposed on an upstream sidewall of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023166302.6U CN214347200U (en) | 2020-12-24 | 2020-12-24 | Fly ash impurity remover for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023166302.6U CN214347200U (en) | 2020-12-24 | 2020-12-24 | Fly ash impurity remover for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214347200U true CN214347200U (en) | 2021-10-08 |
Family
ID=77988468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023166302.6U Expired - Fee Related CN214347200U (en) | 2020-12-24 | 2020-12-24 | Fly ash impurity remover for power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214347200U (en) |
-
2020
- 2020-12-24 CN CN202023166302.6U patent/CN214347200U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |