CN216376654U - Ash conveying and storing system - Google Patents
Ash conveying and storing system Download PDFInfo
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- CN216376654U CN216376654U CN202123062348.8U CN202123062348U CN216376654U CN 216376654 U CN216376654 U CN 216376654U CN 202123062348 U CN202123062348 U CN 202123062348U CN 216376654 U CN216376654 U CN 216376654U
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Abstract
The utility model relates to the technical field of ash conveying and storing systems, in particular to an ash conveying and storing system. Including the electric precipitation electric field, the electric precipitation electric field is connected with steel ash storehouse, fine ash storehouse respectively through defeated grey pipeline, the steel ash storehouse with fine ash storehouse bottom all is equipped with dry ash machine in bulk, dry ashAnd a dust remover is arranged on one side of the bulk machine and is connected with the dry ash bulk machine through a pipeline, and an exhaust fan is arranged on the dry ash bulk machine and is positioned at an exhaust port of the dust remover. According to the ash conveying and storing system provided by the utility model, the dust remover is arranged on one side of the dry ash bulk machine, the dust remover can be used for treating the dust raising amount of the dry ash bulk machine, and the dust content of clean air treated by the dust remover<50mg/m3The environmental protection requirement of on-site dust collection is met; the exhaust fan is arranged at the exhaust port of the dust remover, the dust remover collects and filters the particle ash and then the particle ash is taken out by the exhaust fan, and meanwhile, the abrasion of the exhaust fan is reduced.
Description
Technical Field
The utility model relates to the technical field of ash conveying and storing systems, in particular to an ash conveying and storing system.
Background
The ash storehouse is a closed container used for storing dry powdered coal ash discharged by a thermal power plant and provided with ash feeding and discharging equipment. The dry ash bulk machine is equipment for automatically conveying dry ash from a warehouse to a dry ash bulk vehicle or ship, the dry ash bulk machine is provided with an exhaust fan, but the use period of a wind wheel of the exhaust fan is extremely short in the use process, if the dry ash bulk machine is normally put into operation, the use period of blades of the exhaust fan is short for one month, so that the exhaust fan of the dry ash bulk machine cannot be basically put into operation, and the exhaust fan of the dry ash bulk machine cannot meet the environment-friendly requirement of field raise dust collection.
In order to prolong the service life of an exhaust fan of a dry ash bulk machine, the exhaust fan is modified, a shell of the exhaust fan is changed into a 16 manganese material, an impeller of the exhaust fan is provided with a wear-resistant silicon carbide coating, but the service cycle is only 2-3 months, the exhaust fan needs to be continuously replaced, the price is high, and the maintenance amount is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ash conveying and storing system which can ensure that an exhaust fan of a dry ash bulk machine meets the environmental protection requirement of on-site dust collection, reduce on-site dust, reduce the abrasion of the exhaust fan and ensure the normal operation of the exhaust fan.
The utility model provides an ash conveying storage system which comprises an electric dust collecting field, wherein the electric dust collecting field is respectively connected with a steel ash warehouse and a fine ash warehouse through an ash conveying pipeline, dry ash bulk loaders are respectively arranged at the bottoms of the steel ash warehouse and the fine ash warehouse, a dust collector is arranged on one side of each dry ash bulk loader and is connected with the dry ash bulk loaders through pipelines, and an exhaust fan is arranged on each dry ash bulk loader and is positioned at an exhaust port of the dust collector.
Further, the dust remover adopts a bag-type dust remover.
Furthermore, a feeding pipe of the dry ash bulk machine is connected with a filter bag chamber of the dust remover through a pipeline, and an ash discharge port of the dust remover is connected with a bulk head of the dry ash bulk machine through a pipeline.
Furthermore, two dry ash bulk loading machines are arranged at the bottoms of the steel ash warehouse and the fine ash warehouse, and one dust remover is arranged on one side of each dry ash bulk loading machine.
Further, still include former ash storehouse, thick ash storehouse, desulfurization ash storehouse, former ash storehouse thick ash storehouse desulfurization ash storehouse all passes through defeated grey pipeline with the electricity dust removal electric field is connected.
Furthermore, the bottom of the raw ash warehouse and the bottom of the coarse ash warehouse are respectively provided with one dry ash bulk machine, the dry ash bulk machines are respectively provided with the exhaust fans, and the outer walls of the shells of the exhaust fans and the surfaces of the wind wheels are respectively provided with a ceramic wear-resistant coating.
Further, pneumatic valves are arranged on the tops of the steel ash warehouse, the fine ash warehouse, the raw ash warehouse, the coarse ash warehouse and the desulfurization ash warehouse, and the pneumatic valves are disc valves.
Furthermore, exhaust pipelines are arranged at the bottoms of the raw ash warehouse, the coarse ash warehouse, the desulfurization ash warehouse, the steel ash warehouse and the fine ash warehouse and are made of ceramic lining steel pipes.
Further, the thickness of the ceramic lining inside the ceramic lining steel pipe is 4 mm, and the thickness of the outer steel pipe is 12 mm.
Furthermore, the bottom of the raw ash bin is provided with a double-shaft stirrer, the bottom of the coarse ash bin is provided with two double-shaft stirrers, and the bottom of the desulfurization ash bin is provided with two double-shaft stirrers.
In summary, the utility model has the following advantages:
(1) the ash conveying and storing system provided by the utility model can reduce field dust, ensure that an exhaust fan of a dry ash bulk machine meets the environment-friendly requirement of field dust collection, reduce the abrasion of the exhaust fan and ensure the normal operation of the exhaust fan.
(2) According to the ash conveying and storing system provided by the utility model, the dust remover is arranged on one side of the dry ash bulk machine, the dust remover can be used for treating the dust raising amount of the dry ash bulk machine, and the dust content of clean air treated by the dust remover<50mg/m3The environmental protection requirement of on-site dust collection is met; the exhaust fan is arranged at the exhaust port of the dust remover, the dust remover collects and filters the particle ash and then the particle ash is taken out by the exhaust fan, and meanwhile, the abrasion of the exhaust fan is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an ash conveying and storing system in an embodiment of the present invention.
Description of reference numerals: 1-an electric dust removal electric field, 2-an ash conveying pipeline, 3-a raw ash warehouse, 4-a coarse ash warehouse, 5-a fine ash warehouse, 6-a steel ash warehouse, 7-a desulfurization ash warehouse, 8-a dry ash bulk machine, 9-a first dust remover, 10-an exhaust pipeline, 11-a second dust remover and 12-a double-shaft stirrer.
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 some, but not all, embodiments of the present invention. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
An ash conveying storage system is shown in figure 1.
The electric dust removal electric field 1 is respectively connected with an original ash storehouse 3, a coarse ash storehouse 4, a fine ash storehouse 5, a steel ash storehouse 6 and a desulfurization ash storehouse 7 through an ash conveying pipeline 2. The electric dust removal electric field 1 is each level dust removal subarea of the electric dust remover, the electric dust remover can be designed with a plurality of electric fields, and dry ash, coarse ash or fine ash generated by each electric field are conveyed to different ash storehouses through ash conveying pipelines.
The bottom of the raw ash warehouse 3 and the bottom of the coarse ash warehouse 4 are respectively provided with a dry ash bulk machine 8, the bottom of the fine ash warehouse 5 and the bottom of the steel ash warehouse 6 are respectively provided with two dry ash bulk machines 8, one side of each dry ash bulk machine 8 is provided with a first dust remover 9, the first dust remover 9 adopts a bag-type dust remover, the bag-type dust remover adopts an M48-110 bag-type dust remover in the embodiment, the M48-110 bag-type dust remover is provided with a back blowing device and an ash discharging device, collected particle accumulated ash is discharged into a tank car through an ash discharging pipe, the on-site unorganized flying dust is reduced, and the environmental protection requirement is met. Each dry ash bulk machine 8 is provided with an exhaust fan, the exhaust fan is positioned at an exhaust port of the first dust remover 9, and the first dust remover 9 eliminates secondary dust raising in the operation of the dry ash bulk machine 8, protects the environment around an ash storehouse and reaches the national standard of secondary emission of pollutants.
The first dust remover 9 additionally arranged on one side of the dry ash bulk machine 8 can treat the dust raising amount of one dry ash bulk machine 8, and the clean air dust content after the treatment of the first dust remover 9<50mg/m3The exhaust fan is installed at the exhaust port of the first dust collector 9, the particulate ash is collected and filtered by the first dust collector 9 and then is taken out by the exhaust fan, and meanwhile, the abrasion of the exhaust fan is reduced.
The bottom of the raw ash warehouse 3, the bottom of the coarse ash warehouse 4, the bottom of the fine ash warehouse 5 and the bottom of the steel ash warehouse 6 are all provided with feeders, the feeders are connected with the dry ash bulk machine 8, and the connection mode of the feeders and the dry ash bulk machine adopts a conventional method for connection.
The first dust remover 9 is connected with the dry ash bulk machine 8 through a pipeline, and the pipeline adopts a ceramic lining steel pipe. The specific connection mode is as follows: a pipeline (short joint) with the caliber of DN200 is arranged on the outer side wall of a feeding pipe (namely a feeding sleeve below the feeding machine) of the dry ash bulk machine 8 and is connected with the outer side wall of a filter bag chamber of the first dust remover 9, so that dust is absorbed onto a filter bag of the first dust remover 9 when the exhaust fan runs, the filter bag blocks particle dust, the abrasion to the exhaust fan can be reduced, and the exhaust purification effect is achieved; the pipeline is provided with a valve. The first dust remover 9 is provided with a filter bag blowing device, dust accumulated on the filter bag is blown into a hopper below the first dust remover 9, an ash discharge port of the hopper below the first dust remover 9 is connected with a bulk head (namely an inner cylinder of a telescopic sleeve) of a dry ash bulk machine 8 through a pipeline, the pipeline adopts DN80 caliber, the accumulated dust is returned to the telescopic sleeve, a closed circulation of gas-dust separation is formed, and the field environmental pollution is reduced; a valve is also arranged on the pipeline. The pipeline and valve connection modes are common flange and bolt connection.
In order to reduce the abrasion of the exhaust fan, the outer wall of the wind shell and the surface of the wind wheel of the exhaust fan of all the dry ash bulk loading machines 8 are coated with ceramic wear-resistant coatings. The ceramic wear-resistant coating is a high-performance wear-resistant polymer material obtained by compounding high-performance wear-resistant particles (ceramic) and modified toughened heat-resistant resin, has excellent wear-resistant and corrosion-resistant properties, has high bonding strength with the outer wall of the wind shell and the surface of the wind wheel, and can enhance the wear-resistant property of the exhaust fan.
The top of the original ash storehouse 3, the coarse ash storehouse 4, the fine ash storehouse 5, the steel ash storehouse 6 and the desulfurization ash storehouse 7 are respectively provided with a pneumatic valve, the pneumatic valves adopt disc valves, the tightness is better, the tightness of the whole system can be improved, the failure rate can be reduced, the workload of maintenance and cleaning is reduced, and the operation and maintenance cost is reduced. The top of the raw ash storehouse 3, the coarse ash storehouse 4, the fine ash storehouse 5, the steel ash storehouse 6 and the desulfurization ash storehouse 7 are all provided with a second dust remover 11, and the second dust remover 11 adopts a common bag-type dust remover. The bottom of the raw ash storehouse 3, the bottom of the coarse ash storehouse 4, the bottom of the fine ash storehouse 5, the bottom of the steel ash storehouse 6 and the bottom of the desulfurization ash storehouse 7 are respectively provided with an exhaust pipeline 10, the exhaust pipelines 10 adopt ceramic lining steel pipes, the thickness of a ceramic lining inside the ceramic lining steel pipes is 4 mm, the thickness of an external steel pipe is 12 mm, and the ceramic lining steel pipes have good wear-resisting and corrosion-resisting properties.
A double-shaft mixer 12 is installed to 3 bottoms in former ash storehouse, and two double-shaft mixer 12 are all installed to coarse ash storehouse 4 and 7 bottoms in desulfurization ash storehouse, and double-shaft mixer adds water when carrying dry ash and stirs, and even humidification dry ash reaches the purpose that does not emit dry ash and can not ooze the water droplet again to the loading transportation of the ash of being convenient for add wet.
The bottom of the raw ash bin 3, the bottom of the coarse ash bin 4 and the bottom of the desulphurization ash bin 7 are respectively provided with a feeder, the feeders are connected with a double-shaft mixer 12, and the connection mode adopts a conventional method.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides an ash conveying storage system, a serial communication port, including electric precipitation electric field, electric precipitation electric field is connected with steel ash storehouse, fine ash storehouse respectively through defeated grey pipeline, the steel ash storehouse with fine ash storehouse bottom all is equipped with dry ash machine of loosing, dry ash machine one side of loosing is equipped with the dust remover, the dust remover pass through the pipeline with dry ash machine of loosing is connected, dry ash machine of loosing is equipped with exhaust fan, exhaust fan is located the gas vent of dust remover.
2. The ash conveying storage system of claim 1 wherein the dust separator is a bag-type dust separator.
3. The ash conveying storage system of claim 1, wherein the feeding pipe of the dry ash bulk machine is connected with the filter bag chamber of the dust remover through a pipeline, and the ash discharge port of the dust remover is connected with the bulk head of the dry ash bulk machine through a pipeline.
4. The ash conveying and storing system of claim 2, wherein two dry ash bulk machines are provided at the bottom of each of the steel ash silo and the fine ash silo, and one dust remover is provided at one side of each dry ash bulk machine.
5. The ash conveying storage system of claim 1, further comprising an ash storage, a coarse ash storage and a desulfurization ash storage, wherein the ash storage, the coarse ash storage and the desulfurization ash storage are all connected with the electric dust removal electric field through the ash conveying pipeline.
6. The ash conveying and storing system of claim 5, wherein the raw ash silo and the coarse ash silo are respectively provided with one dry ash bulk machine at the bottom, the dry ash bulk machines are respectively provided with the exhaust fans, and the outer walls of the shells and the surfaces of the wind wheels of all the exhaust fans are respectively provided with a ceramic wear-resistant coating.
7. The ash conveying and storing system of claim 5, wherein pneumatic valves are arranged on the tops of the steel ash silo, the fine ash silo, the raw ash silo, the coarse ash silo and the desulfurization ash silo, and the pneumatic valves are disc valves.
8. The ash conveying and storing system of claim 5, wherein the bottom of the raw ash silo, the bottom of the coarse ash silo, the bottom of the desulfurization ash silo, the bottom of the steel ash silo and the bottom of the fine ash silo are provided with exhaust pipelines, and the exhaust pipelines are made of ceramic lining steel pipes.
9. The ash conveying storage system of claim 8 wherein the ceramic liner inside the ceramic lined steel pipe has a thickness of 4 mm and the outer steel pipe has a thickness of 12 mm.
10. The ash conveying and storing system of claim 5, wherein the bottom of the raw ash silo is provided with one double-shaft mixer, the bottom of the coarse ash silo is provided with two double-shaft mixers, and the bottom of the desulfurization ash silo is provided with two double-shaft mixers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123062348.8U CN216376654U (en) | 2021-12-07 | 2021-12-07 | Ash conveying and storing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123062348.8U CN216376654U (en) | 2021-12-07 | 2021-12-07 | Ash conveying and storing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216376654U true CN216376654U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123062348.8U Active CN216376654U (en) | 2021-12-07 | 2021-12-07 | Ash conveying and storing system |
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|---|---|
| CN (1) | CN216376654U (en) |
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2021
- 2021-12-07 CN CN202123062348.8U patent/CN216376654U/en active Active
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