CN114798150B - Method and system for switching fly ash warehouse pipeline and valve set - Google Patents
Method and system for switching fly ash warehouse pipeline and valve set Download PDFInfo
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- CN114798150B CN114798150B CN202210332041.5A CN202210332041A CN114798150B CN 114798150 B CN114798150 B CN 114798150B CN 202210332041 A CN202210332041 A CN 202210332041A CN 114798150 B CN114798150 B CN 114798150B
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- 239000010881 fly ash Substances 0.000 title claims abstract description 198
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002956 ash Substances 0.000 claims abstract description 130
- 238000000227 grinding Methods 0.000 claims abstract description 50
- 238000012544 monitoring process Methods 0.000 claims abstract description 43
- 238000011217 control strategy Methods 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000010883 coal ash Substances 0.000 claims 2
- 230000005684 electric field Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000003908 quality control method Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 9
- 238000002309 gasification Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011246 composite particle Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a method and a system for switching a pipeline and a valve group of a fly ash warehouse, wherein the method comprises the following steps: the fly ash quality control device comprises a fly ash online quality data acquisition module, a client quality demand module, a fly ash warehouse pipeline and valve group control strategy, a fly ash quality controller, a fine grinding device adjustment module, a sorting device adjustment module and a fly ash warehouse valve group switching module, wherein the fly ash online quality data acquisition module acquires fly ash quality data in real time, the client quality demand module acquires client demand information, the fly ash online quality monitoring system compares the real-time fly ash quality data with the client demand information to obtain the fly ash warehouse pipeline and valve group control strategy, and the fly ash quality controller respectively controls the fine grinding device adjustment module, the sorting device adjustment module and the fly ash warehouse valve group switching module to execute the fine grinding device adjustment strategy, the sorting device adjustment strategy and the fly ash warehouse valve group switching strategy according to the fly ash warehouse pipeline and valve group control strategy. The invention realizes the optimal utilization of fine ash with higher electric field quality and separated fine ash and ground fine ash, fully exerts the design potential of an ash warehouse system, maximally utilizes the output of separation equipment and grinding equipment and promotes the resource utilization of fly ash.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a method and a system for switching a fly ash warehouse pipeline and a valve group.
Background
Fine ash particles discharged from the combustion process of fuel (mainly coal). The particle size is generally between 1 and 100 mu m, and the particle size is also called fly ash or ash. Fine solid particulates in flue gas ash produced by the combustion of fuel, such as fine ash collected from flue gas from coal-fired power plants. The fly ash is formed by cooling pulverized coal after entering a hearth with the temperature of 1300-1500 ℃ and being subjected to heat absorption of a hot surface under the suspension combustion condition. Most of fly ash is spherical due to the action of surface tension, the surface is smooth, and micropores are small. Some of the particles collide with each other in a molten state and adhere to each other, thereby forming honeycomb composite particles having a rough surface and a large number of corners. The chemical composition of fly ash is related to the composition of the coal, the particle size of the coal, the type of boiler, the combustion conditions, the collection mode, etc. The amount of fly ash discharged is directly related to the ash in the coal. According to the coal consumption condition of China, about 250-300 kg of fly ash is produced by burning 1t of coal. If the fly ash is not controlled or treated, the fly ash can cause atmospheric pollution, and enters a water body to stagnate a river channel, wherein certain chemical substances cause harm to organisms and human bodies.
At present, as the national environmental protection is becoming stricter and more important, the fly ash is taken as an important solid waste resource in China, and the application scene is becoming wider and wider, and the fly ash is applied to various fields such as building material industry, road engineering, soil remediation and the like. The quality of the fly ash is stricter and stricter for downstream users, the standard is higher and higher, and the quality stability is also the same.
In practice, the quality of fly ash is related to the type of coal, fineness of the coal powder, combustion conditions, collection mode, etc. The main tasks of the production operation of the thermal power plant are to meet the load demand, the response rate demand and the auxiliary service of a power grid, and the quality of the fly ash is at the tail end in the centralized control operation adjustment to a certain extent. The fly ash is collected from the dust collector and then conveyed to a fly ash warehouse in a pneumatic conveying mode. Generally, three ash reservoirs, namely a raw ash reservoir, a coarse ash reservoir and a fine ash reservoir, are arranged in the large scale.
The operation mode of the fly ash warehouse of each thermal power plant is in a rough state at present, and high-quality fine ash is often degraded due to the fact that low-quality raw ash is mixed, and fly ash, sorting fine ash and grinding fine ash are not distinguished and mixed into the same fine ash warehouse, so that the quality of high-value fine ash is reduced, the quality is unstable, the quantity is reduced, and the recycling utilization of the fly ash is affected.
Disclosure of Invention
The invention aims to provide a fly ash warehouse pipeline and valve group switching method, which aims to solve the technical problems that the quality of high-value fine ash is reduced, the quality is unstable, the quantity is reduced and the recycling utilization of fly ash is influenced because the fine ash is often degraded due to the fact that the fine ash is mixed with low-quality raw ash, the fly ash, the sorted fine ash and the ground fine ash are not mixed with the same fine ash warehouse in a distinguishing way in the prior operation mode of the fly ash warehouse of each thermal power plant.
The first object of the invention is realized by adopting the following technical scheme: a method for switching a fly ash warehouse pipeline and a valve group comprises the following steps:
Acquiring fly ash quality data in real time through a fly ash online quality data acquisition module, and uploading the fly ash quality data to a fly ash online quality monitoring system;
Acquiring customer demand information through a customer quality demand module, and uploading the customer demand information to a fly ash online quality monitoring system through a fly ash quality controller;
Acquiring operation data of the sorting equipment through an operation data acquisition module of the sorting equipment, and uploading the operation data to an online quality monitoring system of the fly ash; acquiring running data of the grinding equipment through a running data acquisition module of the grinding equipment, and uploading the running data to an online quality monitoring system of the fly ash;
The fly ash online quality monitoring system compares real-time fly ash quality data with customer demand information to obtain a control strategy of a fly ash warehouse pipeline and a valve group, and sends the control strategy to a fly ash quality controller;
The fly ash quality controller respectively controls the grinding equipment adjusting module, the sorting equipment adjusting module and the ash warehouse valve group switching module to execute the grinding equipment adjusting strategy, the sorting equipment adjusting strategy and the ash warehouse valve group switching strategy according to the control strategy of the fly ash warehouse pipeline and the valve group.
Further, the fly ash quality data at least comprises fly ash fineness, loss on ignition, water demand ratio, ammonia odor, strength activity index, stability and free calcium oxide data.
Further, the online quality monitoring system for the fly ash comprises a calculation display control device, wherein the calculation display control device presents quality index data of the fly ash warehouse equipment, the pipeline, the valve and the fly ash, and quantity data of the fly ash.
Further, the fine grinding equipment adjusting strategy comprises the steps of adjusting the ash discharging amount, adjusting the discharging time and the minimum cycle period, adjusting the main shaft rotating speed of the powder concentrator and adjusting the opening of an air door of the dust collector.
Further, the sorting equipment adjusting strategy comprises the steps of adjusting a feeding plugboard door, adjusting the rotating speed of a variable-frequency feeder, the rotating speed of a centrifugal fan, and the opening degrees of a regulator and a ventilation valve.
Further, the ash bin valve group switching strategy comprises the step of controlling the valve group of the fly ash pipeline of the power plant to be opened or closed to the ash bin.
The invention provides a fly ash warehouse pipeline and valve group switching system, which aims to solve the technical problems that the fly ash warehouse pipeline and valve group switching system of each thermal power plant is in a rough state in the current operation mode, high-quality fine ash is often degraded due to the fact that low-quality raw ash is mixed, and the fly ash, sorting fine ash and grinding fine ash are not mixed into the same fine ash warehouse in a distinguishing way, so that the quality of the high-value fine ash is degraded, the quality is unstable, the quantity is reduced, and the recycling utilization of the fly ash is affected.
The second object of the invention is achieved by the following technical scheme: the system comprises a fly ash on-line quality data acquisition module and a fly ash on-line quality monitoring system, wherein the fly ash on-line quality data acquisition module acquires fly ash quality data in real time and uploads the fly ash quality data to the fly ash on-line quality monitoring system, the system further comprises a client quality demand module which acquires client demand information and uploads the client demand information to the fly ash on-line quality monitoring system through a fly ash quality controller, and the system further comprises a sorting equipment operation data acquisition module and a fine grinding equipment operation data acquisition module, wherein the sorting equipment operation data is acquired through the sorting equipment operation data acquisition module and uploaded to the fly ash on-line quality monitoring system; the method comprises the steps that operation data of the grinding equipment are obtained through an operation data acquisition module of the grinding equipment and are uploaded to an online quality monitoring system of the fly ash, the online quality monitoring system of the fly ash compares real-time fly ash quality data with customer demand information to obtain a control strategy of a fly ash warehouse pipeline and a valve group, the control strategy is issued to a fly ash quality controller, and the fly ash quality controller respectively controls an adjustment module of the grinding equipment, an adjustment module of the sorting equipment and a valve group switching module of the ash warehouse to execute the adjustment strategy of the grinding equipment, the adjustment strategy of the sorting equipment and the valve group switching strategy of the ash warehouse according to the control strategy of the fly ash warehouse pipeline and the valve group.
The invention has the beneficial effects that: by means of the condition and the current situation of the fly ash warehouse system equipment of the coal-fired power plant, the purpose of improving the quality and the quantity of the fly ash fine ash is achieved to the greatest extent, a fly ash warehouse pipeline and a valve group control strategy are given out through a fly ash online quality monitoring system, a fine grinding equipment adjusting module, a sorting equipment adjusting module and a ash warehouse valve group switching module are respectively controlled to execute the fine grinding equipment adjusting strategy, the sorting equipment adjusting strategy and the ash warehouse valve group switching strategy, the optimal utilization of fine ash with higher electric field quality, the fine sorting ash and the fine grinding ash is achieved, the design potential of the ash warehouse system is fully exerted, the output of the sorting equipment and the fine grinding equipment is utilized to the greatest extent, and the resource utilization of the fly ash is promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described, and the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a block diagram of a system of the present invention;
FIG. 3 is a schematic diagram of a fly ash silo system;
In the figure, 1-power plant, 2-power plant, 3-three power plant, 4-four and five power plants, 5-raw ash warehouse, 6-fine ash warehouse, 7-coarse ash warehouse, 8-induced draft fan, 9-dust collector, 10-powder selecting machine, 11-transition ash warehouse, 12-bucket elevator, 13-jet pump, 14-Roots blower, 15-mill, 16-variable frequency discharger, 17-metering device, 18-variable frequency feeder, 19-gasification chute, 20-gasification blower, 21-negative pressure regulator, 22-high pressure centrifugal blower, 23-inlet door, 24-first inlet plugboard door, 25-second inlet plugboard door, 26-cyclone separator, 27-vortex separator, 28-first air locking discharge valve, 29-second air locking discharge valve and 30-ventilation valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Because the operation mode of the fly ash warehouse of each thermal power plant is in a rough state at present, the fine ash with high quality is often degraded due to the fact that low-quality raw ash is mixed, and the fly ash, the sorted fine ash and the ground fine ash are not distinguished and mixed into the same fine ash warehouse, so that the quality of the high-value fine ash is reduced, the quality is unstable, the quantity is reduced, and the recycling utilization of the fly ash is affected. The present invention provides a solution to the deficiencies of the prior art, with particular reference to the examples.
Example 1:
referring to fig. 1-3, a method for switching a fly ash warehouse pipeline and a valve group comprises the following steps:
Acquiring fly ash quality data in real time through a fly ash online quality data acquisition module, and uploading the fly ash quality data to a fly ash online quality monitoring system;
Acquiring customer demand information through a customer quality demand module, and uploading the customer demand information to a fly ash online quality monitoring system through a fly ash quality controller;
Acquiring operation data of the sorting equipment through an operation data acquisition module of the sorting equipment, and uploading the operation data to an online quality monitoring system of the fly ash; acquiring running data of the grinding equipment through a running data acquisition module of the grinding equipment, and uploading the running data to an online quality monitoring system of the fly ash;
The fly ash online quality monitoring system compares real-time fly ash quality data with customer demand information to obtain a control strategy of a fly ash warehouse pipeline and a valve group, and sends the control strategy to a fly ash quality controller;
The fly ash quality controller respectively controls the grinding equipment adjusting module, the sorting equipment adjusting module and the ash warehouse valve group switching module to execute the grinding equipment adjusting strategy, the sorting equipment adjusting strategy and the ash warehouse valve group switching strategy according to the control strategy of the fly ash warehouse pipeline and the valve group.
In the embodiment, the fly ash quality data of a fly ash warehouse system is collected in real time through a fly ash online quality data collection module, the fly ash warehouse system comprises a first power plant 1, a second power plant 2, a third power plant 3, a fourth power plant and a fifth power plant 4, and fly ash collected by the first power plant 1, the second power plant 2, the third power plant 3, the fourth power plant and the fifth power plant 4 is respectively conveyed to a raw ash warehouse 5, a fine ash warehouse 6 and a coarse ash warehouse 7 through respective pipelines. Specifically, a power plant 1 is respectively connected with a raw ash warehouse 5 and a coarse ash warehouse 7 through a power plant pipeline, and a power plant raw ash warehouse valve and a power plant coarse ash warehouse valve are arranged on the power plant pipeline; the two power plants 2 are respectively connected with a raw ash warehouse 5 and a fine ash warehouse 6 through two power plant pipelines, and the two power plant pipelines are provided with two power plant raw ash warehouse valves and two power plant fine ash warehouse valves; the three power plants 3 are respectively connected with the raw ash warehouse 5, the fine ash warehouse 6 and the coarse ash warehouse 7 through three power plant pipelines, and three power plant raw ash warehouse valves, three power plant fine ash warehouse valves and three power plant coarse ash warehouse valves are arranged on the three power plant pipelines; 4. the five power plants 4 are respectively connected with the raw ash warehouse 5, the fine ash warehouse 6 and the coarse ash warehouse 7 through four and five power plant pipelines, and four and five power plant raw ash warehouse valves, four and five power plant fine ash warehouse valves and four and five power plant coarse ash warehouse valves are arranged on the four and five power plant pipelines.
In this example, the fly ash quality data includes at least fly ash fineness, loss on ignition, water demand ratio, ammonia odor, strength activity index, stability, and free calcium oxide data.
Further, the online quality monitoring system for the fly ash comprises a calculation display control device, wherein the calculation display control device presents quality index data of the fly ash warehouse equipment, the pipeline, the valve and the fly ash and quantity data of the fly ash; the ash discharging amount, the discharging time and the minimum cycle period of the grinding equipment, the spindle rotating speed of the powder concentrator and the opening data of a dust collector air door; the opening data of a feeding plugboard door, a frequency conversion feeder rotating speed, a centrifugal fan rotating speed, a regulator and a ventilation valve of the sorting equipment; and receiving the fly ash quality demand parameter information proposed by the customer and presenting the fly ash quality demand parameter information.
Further, the fine grinding equipment adjusting strategy comprises the steps of adjusting the ash discharging amount, adjusting the discharging time and the minimum cycle period, adjusting the main shaft rotating speed of the powder concentrator and adjusting the opening of an air door of the dust collector.
In this embodiment, the grinding apparatus includes a draught fan 8, a dust collector 9, a powder concentrator 10, a transition ash bin 11, a bucket elevator 12, a jet pump 13, a Roots blower 14, a mill 15, a variable frequency discharger 16, and a metering device 17. The fly ash online quality monitoring system sends an adjusting instruction to a fine grinding equipment adjusting module through a fly ash quality controller according to fly ash online quality data and customer demand information, and the fine grinding equipment adjusting module respectively controls a draught fan 8, a dust collector 9, a powder selecting machine 10, a transition ash bin 11, a bucket elevator 12, a jet pump 13, a Roots blower 14, a mill 15 and a variable frequency discharger 16 to be opened and closed, so that the opening degree and the rotating speed are increased or reduced. It will be appreciated that the opening and closing of the milling apparatus described herein, the opening adjustment and the rotation speed adjustment may be adjusted according to the actual situation.
Further, the sorting equipment adjusting strategy comprises the steps of adjusting a feeding plugboard door, adjusting the rotating speed of a variable-frequency feeder, the rotating speed of a centrifugal fan, and the opening degrees of a regulator and a ventilation valve.
In this embodiment, the sorting apparatus includes a variable frequency feeder 18, a gasification chute 19, a gasification fan 20, a negative pressure regulator 21, a high pressure centrifugal fan 22, an inlet door 23, a first inlet insert plate door 24, a second inlet insert plate door 25, a cyclone 26, a vortex separator 27, a first air lock discharge valve 28, a second air lock discharge valve 29, and an air bleed valve 30. The fly ash online quality monitoring system sends an adjustment instruction to a sorting equipment adjustment module through a fly ash quality controller according to fly ash online quality data and customer demand information, and the sorting equipment adjustment module respectively controls a variable frequency feeder 18, a gasification chute 19, a gasification fan 20, a negative pressure regulator 21, a high-pressure centrifugal fan 22, an inlet door 23, a first feeding plugboard door 24, a second feeding plugboard door 25, a cyclone separator 26, an eddy current separator 27, a first air locking discharge valve 28, a second air locking discharge valve 29 and a ventilation valve 30 to be opened and closed, so that the opening degree and the rotating speed are increased or reduced. It will be appreciated that the opening and closing of the sorting apparatus described herein, the opening adjustment and the rotation speed adjustment may be adjusted according to the actual situation.
Further, the ash bin valve group switching strategy comprises the step of controlling the valve group of the fly ash pipeline of the power plant to be opened or closed to the ash bin.
In this embodiment, the valve set for the fly ash pipeline to the ash silo of the power plant comprises a raw ash silo valve of the power plant and a coarse ash silo valve of the power plant, a raw ash silo valve of the two power plants and a fine ash silo valve of the two power plants, a raw ash silo valve of the three power plants, a fine ash silo valve of the three power plants and a coarse ash silo valve of the three power plants, a raw ash silo valve of the four and five power plants, fine ash silo valves of the four and five power plants and a coarse ash silo valve of the four and five power plants. The fly ash online quality monitoring system sends an adjusting instruction to the ash warehouse valve group switching module through the fly ash quality controller according to fly ash online quality data and customer demand information, the ash bin valve group switching module sequentially controls the opening or closing of a raw ash bin valve of a power plant, a coarse ash bin valve of a power plant, a raw ash bin valve of a second power plant, a fine ash bin valve of a second power plant, a raw ash bin valve of a third power plant, a fine ash bin valve of a third power plant, a coarse ash bin valve of a third power plant, raw ash bin valves of four and five power plants, fine ash bin valves of four and five power plants and coarse ash bin valves of four and five power plants. It will be appreciated that the opening and closing of the valve assembly of the fly ash line to the ash silo of the power plant described herein may be adjusted according to the actual circumstances.
The invention provides a raw ash warehouse, a coarse ash warehouse and a fine ash warehouse which are based on a fly ash warehouse system, one to five electric field fly ash pipelines, fly ash pipeline valve components, sorting equipment and grinding equipment, and provides a fly ash warehouse valve component switching instruction and a sorting equipment and grinding equipment adjusting instruction by a fly ash online quality monitoring system according to the quality requirements of clients on fly ash, so as to ensure that the quantity and grade of the fly ash fine ash are improved to the maximum extent.
The system comprises a fly ash on-line quality data acquisition module and a fly ash on-line quality monitoring system, wherein the fly ash on-line quality data acquisition module acquires fly ash quality data in real time and uploads the fly ash quality data to the fly ash on-line quality monitoring system, the system further comprises a client quality demand module which acquires client demand information and uploads the client demand information to the fly ash on-line quality monitoring system through a fly ash quality controller, and the system further comprises a sorting equipment operation data acquisition module and a fine grinding equipment operation data acquisition module, wherein the sorting equipment operation data is acquired through the sorting equipment operation data acquisition module and uploaded to the fly ash on-line quality monitoring system; the method comprises the steps that operation data of the grinding equipment are obtained through an operation data acquisition module of the grinding equipment and are uploaded to an online quality monitoring system of the fly ash, the online quality monitoring system of the fly ash compares real-time fly ash quality data with customer demand information to obtain a control strategy of a fly ash warehouse pipeline and a valve group, the control strategy is issued to a fly ash quality controller, and the fly ash quality controller respectively controls an adjustment module of the grinding equipment, an adjustment module of the sorting equipment and a valve group switching module of the ash warehouse to execute the adjustment strategy of the grinding equipment, the adjustment strategy of the sorting equipment and the valve group switching strategy of the ash warehouse according to the control strategy of the fly ash warehouse pipeline and the valve group.
The invention relies on the condition and the current situation of the fly ash warehouse system equipment of the coal-fired power plant, aims to improve the quality and quantity of the fly ash to the maximum extent, gives out the control strategy of the fly ash warehouse pipeline and the valve group through the fly ash online quality monitoring system, respectively controls the fine grinding equipment adjusting module, the sorting equipment adjusting module and the ash warehouse valve group switching module to execute the fine grinding equipment adjusting strategy, the sorting equipment adjusting strategy and the ash warehouse valve group switching strategy, realizes the optimized utilization of fine ash with higher electric field quality, sorted fine ash and fine grinding ash, fully exerts the design potential of the ash warehouse system, maximally utilizes the output of the sorting equipment and the fine grinding equipment, and promotes the recycling utilization of the fly ash.
It should be noted that, for simplicity of description, the foregoing embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, it should be understood by those skilled in the art that the embodiments described in the specification are preferred embodiments and that the actions involved are not necessarily required for the present application.
Furthermore, the terms "connected," "configured," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "connected", "arranged" may explicitly or implicitly include one or more such features. Moreover, the terms "connected," "configured," and the like are used to distinguish between similar objects and do not necessarily describe a particular order or sequence. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
In the above embodiments, the basic principle and main features of the present invention and advantages of the present invention are described. It will be appreciated by persons skilled in the art that the present invention is not limited by the foregoing embodiments, but rather is shown and described in what is considered to be illustrative of the principles of the invention, and that modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the invention, and therefore, is within the scope of the appended claims.
Claims (2)
1. The method for switching the fly ash warehouse pipeline and the valve group is characterized by comprising the following steps:
Acquiring fly ash quality data in real time through a fly ash online quality data acquisition module, and uploading the fly ash quality data to a fly ash online quality monitoring system; the coal ash quality data at least comprises coal ash fineness, loss on ignition, water demand ratio, ammonia taste, intensity activity index, stability and free calcium oxide data; the online quality monitoring system for the fly ash comprises a calculation display control device, wherein the calculation display control device presents quality index data of the fly ash warehouse equipment, pipelines, valves and the fly ash and quantity data of the fly ash;
Acquiring customer demand information through a customer quality demand module, and uploading the customer demand information to a fly ash online quality monitoring system through a fly ash quality controller;
Acquiring operation data of the sorting equipment through an operation data acquisition module of the sorting equipment, and uploading the operation data to an online quality monitoring system of the fly ash; acquiring running data of the grinding equipment through a running data acquisition module of the grinding equipment, and uploading the running data to an online quality monitoring system of the fly ash;
The fly ash online quality monitoring system compares real-time fly ash quality data with customer demand information to obtain a control strategy of a fly ash warehouse pipeline and a valve group, and sends the control strategy to a fly ash quality controller;
the fly ash quality controller respectively controls the grinding equipment adjusting module, the sorting equipment adjusting module and the ash warehouse valve group switching module to execute the grinding equipment adjusting strategy, the sorting equipment adjusting strategy and the ash warehouse valve group switching strategy according to the control strategy of the fly ash warehouse pipeline and the valve group;
The fine grinding equipment adjusting strategy comprises the steps of adjusting the ash discharging amount, adjusting the discharging time and the minimum cycle period, adjusting the main shaft rotating speed of the powder concentrator and adjusting the opening of an air door of a dust collector; the sorting equipment adjusting strategy comprises the steps of adjusting a feeding plugboard door, adjusting the rotating speed of a variable-frequency feeder, the rotating speed of a centrifugal fan, and the opening of a regulator and a ventilation valve; the ash bin valve group switching strategy comprises the step of controlling the valve group of the fly ash pipeline of the power plant to be opened or closed to the ash bin.
2. The system for switching the fly ash warehouse pipeline and the valve group is used for realizing the method for switching the fly ash warehouse pipeline and the valve group according to claim 1, and is characterized by comprising a fly ash online quality data acquisition module and a fly ash online quality monitoring system, wherein the fly ash online quality data acquisition module acquires fly ash quality data in real time and uploads the fly ash quality data to the fly ash online quality monitoring system, the system also comprises a client quality demand module which acquires client demand information and uploads the client demand information to the fly ash online quality monitoring system through a fly ash quality controller, and the system also comprises a sorting equipment operation data acquisition module and a grinding equipment operation data acquisition module, and acquires sorting equipment operation data through the sorting equipment operation data acquisition module and uploads the sorting equipment operation data to the fly ash online quality monitoring system; the method comprises the steps that operation data of the grinding equipment are obtained through an operation data acquisition module of the grinding equipment and are uploaded to an online quality monitoring system of the fly ash, the online quality monitoring system of the fly ash compares real-time fly ash quality data with customer demand information to obtain a control strategy of a fly ash warehouse pipeline and a valve group, the control strategy is issued to a fly ash quality controller, and the fly ash quality controller respectively controls an adjustment module of the grinding equipment, an adjustment module of the sorting equipment and a valve group switching module of the ash warehouse to execute the adjustment strategy of the grinding equipment, the adjustment strategy of the sorting equipment and the valve group switching strategy of the ash warehouse according to the control strategy of the fly ash warehouse pipeline and the valve group.
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