CN112047065A - Coal feeder starting operation method and system for preventing high temperature of stored coal in coal bunker - Google Patents
Coal feeder starting operation method and system for preventing high temperature of stored coal in coal bunker Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0275—Damage on the load carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
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- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a method and a system for starting and operating a coal feeder for preventing and treating high temperature of coal stored in a coal bunker, wherein the method comprises the following steps: (1) the system judges whether the total number of the coal feeders in operation is greater than a system set value; (2) if the total number of the coal feeders in operation is not more than the set value of the system, starting the corresponding coal feeder to be stopped according to the starting condition of the coal feeder; (3) whether the accumulated operation meets the system set zero clearing time after the coal feeder is started; (4) and stopping the coal feeder which is started to operate according to the shutdown condition of the coal feeder. The coal feeder start-up operation system for preventing and treating high temperature of coal stored in the coal bunker comprises: the coal feeder fault state judgment module, the coal feeder accumulated outage time judgment module, the coal feeder start-stop judgment module, the coal quantity judgment module, the bin level judgment module and the coal feeder accumulated operation time judgment module are arranged; the invention effectively avoids the fire danger problem caused by long-time shutdown of the coal feeder.
Description
The technical field is as follows:
the invention relates to a method and a system for starting and operating a coal feeder, in particular to a method and a system for starting and operating a coal feeder for preventing and treating high temperature of coal stored in a coal bunker.
Background art:
in order to ensure the full-load operation of the downstream coal washing and separating system, the upstream coal feeding system is designed according to the full-load operation of the downstream coal washing and separating system and comprises a raw coal bin, and a plurality of coal feeders are arranged below the raw coal bin along the conveying direction of a conveying belt. According to the different washing volumes of the coal preparation plant every day, the coal washing and separating system does not need to operate at full load under many conditions, and at the moment, the requirements of the downstream coal washing and separating system can be met only by operating part of the coal feeders. At present, a coal feeder is started manually, and due to the fact that the number of the coal feeders is large, if operators cannot observe the coal feeders in time, the phenomenon that part of the coal feeders cannot effectively operate for a long time (the coal feeders continuously operate for 2 hours to effectively operate) exists, coal stored on the upper portion of the coal feeder cannot be effectively circulated and replaced due to the fact that the coal feeders cannot effectively operate, and if the coal feeders are shut down for more than 10 days, high temperature of the coal can be generated, and fire danger is caused.
The invention content is as follows:
in order to solve the problem that the stored coal on the upper part of the coal feeder cannot be effectively circulated and replaced due to the fact that the coal feeder cannot be effectively operated, and the fire danger is caused due to the fact that the stored coal is high in temperature, the invention aims to provide a starting operation method of the coal feeder for preventing the high temperature of the stored coal in a coal bunker.
The invention aims to provide a coal feeder starting and operating system for preventing high temperature of coal stored in a coal bunker.
The first purpose of the invention is implemented by the following technical scheme: a coal feeder starting operation method for preventing high temperature of stored coal in a coal bunker comprises the following steps:
(1) the system judges whether the total number of the coal feeders in operation is greater than a system set value, if so, the stopped coal feeders are not started;
(2) if the total number of the coal feeders in operation is not more than the set value of the system, starting the corresponding coal feeder to be stopped according to the starting condition of the coal feeder;
(3) whether the accumulated operation meets the system set zero clearing time after the coal feeder is started is judged, if the accumulated operation is insufficient, the system set zero clearing time is obtained, and the shutdown time of the coal feeder is not zero cleared; otherwise, resetting the shutdown time of the coal feeder;
(4) and stopping the coal feeder which is started to operate according to the shutdown condition of the coal feeder.
Further, the coal feeder starting condition is that the accumulated shutdown time is used as the coal feeder starting condition or the coal quantity and the bin level are used as the coal feeder starting condition.
Further, the specific starting method taking the accumulated shutdown time as the starting condition of the coal feeder comprises the following steps:
(1) detecting whether a fault machine exists in the stopped coal feeders, if so, removing the fault machine from the stopped coal feeders, then carrying out ascending sequencing on the accumulated stop time of the normally stopped coal feeders, and determining the coal feeder with the longest accumulated stop time;
(2) judging whether the conveying belt is started or not, if not, starting the conveying belt after related problems are processed; and if the conveying belt is started, starting the coal feeder with the longest accumulated shutdown time.
Further, the specific starting method taking the coal quantity and the bin level as the starting conditions of the coal feeder comprises the following steps: judging whether the instantaneous coal loading of the belt is lower than a set value of the coal loading of the system, if so, further comparing the average bin level data of the raw coal bins in pairs to output the maximum value to obtain a high bin level coal bin; and increasing a coal feeder which corresponds to the coal bunker with the high bunker level and has the longest down-stop time.
Further, the shutdown conditions of the coal feeder are as follows: and when the instantaneous coal loading amount of the belt is recovered to a normal value, selecting the coal feeder with the longest operation time and stopping the coal feeder.
Further, the shutdown conditions of the coal feeder are as follows: the feeder was continuously operated for 2 hours and stopped.
The second purpose of the invention is implemented by the following technical scheme: the coal feeder start-up operation system for preventing and treating high temperature of coal stored in the coal bunker comprises: the coal feeder fault state judgment module, the coal feeder accumulated outage time judgment module, the coal feeder start-stop judgment module, the coal quantity judgment module, the bin level judgment module and the coal feeder accumulated operation time judgment module are arranged;
the coal feeder fault state judgment module is used for judging whether the shut-down coal feeder is at least one of a fault, a bypass or a site, if the current state of the coal feeder is at least one of the fault, the bypass or the site, a signal is transmitted to an OR gate corresponding to the coal feeder number in the coal feeder accumulated shut-down time judgment module, and a comparison sequence is eliminated;
after the system receives a round-robin starting instruction sent by centralized control, the coal feeder accumulative shutdown time judging module carries out incremental sequencing on the collected data of each group of coal feeder accumulative shutdown time through a '>', namely a high selection algorithm, selects a maximum value, compares the output value with the accumulative shutdown time values of the coal feeders in the group respectively, matches the corresponding coal feeder numbers, and outputs the numbers to the coal feeder starting and stopping judging module;
the coal feeder starting and stopping judgment module is used for matching the output serial number with a corresponding starting area through an H/L high-low limit value algorithm, transmitting a signal downwards when a belt is in a running state, starting the coal feeder and simultaneously starting to record running time; stopping the coal feeder when the running time is accumulated for 2 hours through a delay algorithm; when the normal operation of the coal feeder is not less than the system set zero clearing time, clearing the accumulated shutdown time; if the coal feeder is shut down for any reason when the accumulated operation is less than the system set zero clearing time, the accumulated shutdown time is not cleared, and the coal feeder continues to enter a high-selection sorting sequence according to the original value;
coal amount decision module and position of a bin decision module: in the coal quantity judging module, the system can collect the instantaneous coal loading quantity of the belt in real time, and the instantaneous coal loading quantity of the belt is lower than the set value of the coal loading quantity of the system through a/L lower limit value arithmetic unit; meanwhile, in the bin level judging module, the system can simultaneously collect the average bin level data of the raw coal bins in real time, compares the average bin level data with the average bin level data of the raw coal bins in pairs and outputs the maximum value to obtain the number of the coal bins with high bin levels, and increases one coal feeder with the longest shutdown time under the corresponding bin level;
the coal feeder accumulated operation time judgment module: and when the instantaneous coal loading amount of the belt is not lower than the lowest limit value, stopping downward signal transmission in the coal amount judgment module, outputting the collected accumulated running time of each coal feeder in the coal feeder accumulated outage time judgment module to the maximum value through a high selection algorithm, and shutting down the coal feeder by using the matched coal feeder number through the function of the coal feeder start-stop judgment module.
The invention has the advantages that: the coal feeder is started according to the outage time, the coal feeder with longer outage time is started preferentially, and the coal feeder is automatically shut down after running for 2 hours, so that the fire danger problem caused by long-time outage of the coal feeder is effectively avoided.
Description of the drawings:
FIG. 1 is a flow chart of a coal feeder cycle.
The specific implementation mode is as follows:
example 1: three raw coal bins of a certain coal preparation plant are arranged in parallel, two coal conveying belts (153 belts and 154 belts) are arranged below the raw coal bins, 16 coal feeders (No. 105 and No. 153) are arranged below each raw coal bin, namely 8 coal feeders are arranged above each coal conveying belt below each raw coal bin. According to the volume of washing of going into of coal preparation factory difference every day, 48 feeder machines can not put into operation simultaneously under the raw coal bunker, for avoiding the feeder to shut down the fire danger problem that causes for a long time, this embodiment provides a prevention and cure coal bunker internal storage coal high temperature's feeder start-up operation system, includes: the coal feeder fault state judgment module, the coal feeder accumulated outage time judgment module, the coal feeder start-stop judgment module, the coal quantity judgment module, the bin level judgment module and the coal feeder accumulated operation time judgment module are arranged;
the coal feeder fault state judgment module is used for judging whether the stopped coal feeder is at least one of a fault, a bypass or a site, if the current state of the coal feeder is at least one of the fault, the bypass or the site, the signal is transmitted to an OR gate corresponding to the coal feeder number in the coal feeder accumulative stop time judgment module, and a comparison sequence is eliminated;
the system receives a round-robin starting instruction sent by centralized control, performs incremental sorting on the acquired data of the accumulated shutdown time of each group of coal feeders through a' real time, namely a high selection algorithm, selects a maximum value, compares the output value with the accumulated shutdown time values of the coal feeders in the group, matches the corresponding coal feeder numbers, and outputs the numbers to the coal feeder starting and stopping judging module;
the coal feeder starting and stopping judgment module is used for enabling the output serial numbers to enter corresponding starting areas through H/L high and low limit value algorithm matching, transmitting signals downwards when belts 153 and 154 are in a running state, starting the coal feeder and simultaneously starting to record running time; through a delay algorithm, when the running time is accumulated for 2 hours, namely, the principle is that a signal is delayed for two hours by a delay counter and then is transmitted downwards, and the coal feeder is shut down; when the coal feeder normally operates for 20 minutes, the accumulated shutdown time is reset, and the coal feeder started in the next round of the group does not have the coal feeder; and if the coal feeder is stopped for any reason when the accumulative operation is less than 20 minutes, the accumulative stop time is not cleared, and the coal feeder continues to enter a high-selection sequencing sequence according to the original value. If not designed, the coal feeder is started, the accumulated shutdown time is cleared, and if the coal feeder is shut down accidentally midway in operation, the coal feeder is shut down with extremely short operation time and cannot be selected to be started in the next round of sequencing, so that the coal feeder is accumulated. In the design, 20 minutes are taken as safe operation time, signals are output after 20 minutes of delay through a delay algorithm, the machine shutdown time collected by the system is cleared, and coal accumulation of the coal feeder due to too short operation time is prevented.
Coal amount decision module and position of a bin decision module: in the coal quantity judging module, the system collects 201 and 301 belt instantaneous coal loading quantities in real time, and signals are transmitted downwards through a/L lower limit value arithmetic unit when the 201 belt instantaneous coal loading quantity is lower than 3000 tons per hour and the 301 belt coal loading quantity is lower than 1300 tons per hour. In the bin level judging module, the system can simultaneously collect the average bin level data of the raw coal bins in real time, compares the average bin level data with the average bin level data of the raw coal bins in pairs and outputs the maximum value, obtains the number of the high-bin coal bins, transmits signals downwards, and increases one coal feeder with the longest shutdown time under the corresponding bin level.
The coal feeder accumulated operation time judgment module: the function realized by the module is the coal feeder which is shut down and increased in start. And when the belt coal amount is higher than the minimum limit value, stopping downward signal transmission in the coal amount judgment module, outputting the maximum value of the collected accumulated running time of each coal feeder in the coal feeder accumulated outage time judgment module through a high selection algorithm, and shutting down the coal feeder by the matched coal feeder number through the function of the coal feeder start-stop judgment module.
The method for starting and operating the coal feeder for preventing high temperature of coal stored in the coal bunker by using the system comprises the following steps as shown in fig. 1:
1. the system judges whether the total number of the coal feeders in operation is greater than 12, if so, the stopped coal feeders are not started, and the stopping condition is judged.
2. If the total number of the coal feeders in operation is not more than 12, starting the corresponding coal feeder to be stopped according to the starting condition of the coal feeder; and the coal feeder starting condition is that the accumulated shutdown time is used as the coal feeder starting condition or the coal quantity and the bin level are used as the coal feeder starting condition.
The specific starting method taking the accumulated shutdown time as the starting condition of the coal feeder comprises the following steps:
(1) detecting whether a fault machine exists in the stopped coal feeders, if so, removing the fault machine from the stopped coal feeders, then carrying out ascending sequencing on the accumulated stop time of the normally stopped coal feeders, and determining the coal feeder with the longest accumulated stop time;
(2) judging whether the conveying belt is started or not, if not, starting the conveying belt after related problems are processed; and if the conveying belt is started, starting the coal feeder with the longest accumulated shutdown time.
The specific starting method taking the coal quantity and the bin level as the starting conditions of the coal feeder comprises the following steps: judging whether the instantaneous coal loading of the belt is lower than a set value of the coal loading of the system, if so, further comparing the average bin level data of the raw coal bins in pairs to output the maximum value to obtain a high bin level coal bin; and increasing a coal feeder which corresponds to the coal bunker with the high bunker level and has the longest down-stop time. In this embodiment, the system collects the instantaneous coal loads of the 201 and 301 belts in real time, and through the "/L" lower limit calculator, that is, when the instantaneous coal load of the 201 belt is lower than 3000 tons per hour and the coal load of the 301 belt is lower than 1300 tons per hour, the system collects the average bin level data of the raw coal bins in real time, compares the two values with each other to output the maximum value, obtains the number of the high-bin coal bin, transmits a signal downwards, and increases one coal feeder with the longest stopping time under the corresponding bin level.
3. Whether the accumulated operation meets the system set zero clearing time after the coal feeder is started or not is judged, the system set zero clearing time in the implementation is 20 minutes, and if the accumulated operation is less than 20 minutes, the shutdown time of the coal feeder is not cleared; otherwise, resetting the shutdown time of the coal feeder;
4. and stopping the coal feeder which is started to operate according to the shutdown condition of the coal feeder. In particular to a coal feeder which is continuously operated for 2 hours and is shut down. Or after a coal feeder corresponding to the coal bunker with the high bunker level is started and the down-stop time of the coal feeder is longest, selecting the coal feeder with the longest running time to stop when the instantaneous coal carrying quantity of the belt is recovered to a normal value.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A coal feeder starting operation method for preventing high temperature of stored coal in a coal bunker is characterized by comprising the following steps:
(1) the system judges whether the total number of the coal feeders in operation is greater than a system set value, if so, the stopped coal feeders are not started;
(2) if the total number of the coal feeders in operation is not more than the set value of the system, starting the corresponding coal feeder to be stopped according to the starting condition of the coal feeder;
(3) whether the accumulated operation meets the system set zero clearing time after the coal feeder is started is judged, if the accumulated operation is insufficient, the system set zero clearing time is obtained, and the shutdown time of the coal feeder is not zero cleared; otherwise, resetting the shutdown time of the coal feeder;
(4) and stopping the coal feeder which is started to operate according to the shutdown condition of the coal feeder.
2. The coal feeder starting operation method for preventing and treating high temperature of coal stored in a coal bunker as claimed in claim 1, wherein the coal feeder starting condition is that accumulated shutdown time is used as the coal feeder starting condition or coal quantity and bunker level are used as the coal feeder starting condition.
3. The coal feeder starting operation method for preventing and treating high temperature of coal stored in a coal bunker according to claim 2, wherein the specific starting method taking accumulated shutdown time as a coal feeder starting condition comprises the following steps:
(1) detecting whether a fault machine exists in the stopped coal feeders, if so, removing the fault machine from the stopped coal feeders, then carrying out ascending sequencing on the accumulated stop time of the normally stopped coal feeders, and determining the coal feeder with the longest accumulated stop time;
(2) judging whether the conveying belt is started or not, if not, starting the conveying belt after related problems are processed; and if the conveying belt is started, starting the coal feeder with the longest accumulated shutdown time.
4. The coal feeder starting operation method for preventing high temperature of coal stored in a coal bunker according to claim 2, wherein the specific starting method using the coal quantity and the bunker level as the starting conditions of the coal feeder comprises the following steps: judging whether the instantaneous coal loading of the belt is lower than a set value of the coal loading of the system, if so, further comparing the average bin level data of the raw coal bins in pairs to output the maximum value to obtain a high bin level coal bin; and increasing a coal feeder which corresponds to the coal bunker with the high bunker level and has the longest down-stop time.
5. The coal feeder starting and operating method for preventing high temperature of coal stored in a coal bunker according to claim 4, wherein the stopping conditions of the coal feeder are as follows: and when the instantaneous coal loading amount of the belt is recovered to a normal value, selecting the coal feeder with the longest operation time and stopping the coal feeder.
6. The coal feeder starting and operating method for preventing high temperature of coal stored in a coal bunker according to claim 1, wherein the stopping conditions of the coal feeder are as follows: the feeder was continuously operated for 2 hours and stopped.
7. The coal feeder start-up operation system for preventing and treating high temperature of coal stored in the coal bunker comprises: the coal feeder fault state judgment module, the coal feeder accumulated outage time judgment module, the coal feeder start-stop judgment module, the coal quantity judgment module, the bin level judgment module and the coal feeder accumulated operation time judgment module are arranged;
the coal feeder fault state judgment module is used for judging whether the shut-down coal feeder is at least one of a fault, a bypass or a site, if the current state of the coal feeder is at least one of the fault, the bypass or the site, a signal is transmitted to an OR gate corresponding to the coal feeder number in the coal feeder accumulated shut-down time judgment module, and a comparison sequence is eliminated;
after the system receives a round-robin starting instruction sent by centralized control, the coal feeder accumulative shutdown time judging module carries out incremental sequencing on the collected data of each group of coal feeder accumulative shutdown time through a '>', namely a high selection algorithm, selects a maximum value, compares the output value with the accumulative shutdown time values of the coal feeders in the group respectively, matches the corresponding coal feeder numbers, and outputs the numbers to the coal feeder starting and stopping judging module;
the coal feeder starting and stopping judgment module is used for matching the output serial number with a corresponding starting area through an H/L high-low limit value algorithm, transmitting a signal downwards when a belt is in a running state, starting the coal feeder and simultaneously starting to record running time; stopping the coal feeder when the running time is accumulated for 2 hours through a delay algorithm; when the normal operation of the coal feeder is not less than the system set zero clearing time, clearing the accumulated shutdown time; if the coal feeder is shut down for any reason when the accumulated operation is less than the system set zero clearing time, the accumulated shutdown time is not cleared, and the coal feeder continues to enter a high-selection sorting sequence according to the original value;
coal amount decision module and position of a bin decision module: in the coal quantity judging module, the system can collect the instantaneous coal loading quantity of the belt in real time, and the instantaneous coal loading quantity of the belt is lower than the set value of the coal loading quantity of the system through a/L lower limit value arithmetic unit; meanwhile, in the bin level judging module, the system can simultaneously collect the average bin level data of the raw coal bins in real time, compares the average bin level data with the average bin level data of the raw coal bins in pairs and outputs the maximum value to obtain the number of the coal bins with high bin levels, and increases one coal feeder with the longest shutdown time under the corresponding bin level;
the coal feeder accumulated operation time judgment module: and when the instantaneous coal loading amount of the belt is not lower than the lowest limit value, stopping downward signal transmission in the coal amount judgment module, outputting the collected accumulated running time of each coal feeder in the coal feeder accumulated outage time judgment module to the maximum value through a high selection algorithm, and shutting down the coal feeder by using the matched coal feeder number through the function of the coal feeder start-stop judgment module.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113341703A (en) * | 2021-05-11 | 2021-09-03 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Pre-coaling feed-forward optimal time difference algorithm for starting mill pre-judgment |
| CN114955444A (en) * | 2022-06-09 | 2022-08-30 | 西安交通大学 | Coal mine belt conveyor control method, device, equipment and readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201211466A (en) * | 2010-09-07 | 2012-03-16 | Petrocom Energy Ltd | Coal blending system and coal feeder for use in the coal blending system |
| CN206075036U (en) * | 2016-08-26 | 2017-04-05 | 江苏大唐国际吕四港发电有限责任公司 | A kind of coal feeder control system |
| CN206068970U (en) * | 2016-09-23 | 2017-04-05 | 浙江硕成自动化设备有限公司 | Coal feeder control system based on PLC |
| CN208539808U (en) * | 2018-06-26 | 2019-02-22 | 山西天地王坡煤业有限公司 | A kind of feeder power supply system for coal-gangue separation |
| CN110003931A (en) * | 2019-05-10 | 2019-07-12 | 北京沄汇智能科技有限公司 | A kind of coal blending control system and method |
| CN110017498A (en) * | 2019-04-30 | 2019-07-16 | 中国能源建设集团西北电力试验研究院有限公司 | A kind of unit pulverized-coal system Starting mode |
| CN209259002U (en) * | 2018-11-26 | 2019-08-16 | 中国电力工程顾问集团西南电力设计院有限公司 | CFB unit is delivered coal system |
| CN210594319U (en) * | 2019-06-28 | 2020-05-22 | 中国联合工程有限公司 | Coal conveying and distributing system for large coal-fired boiler group |
-
2020
- 2020-09-28 CN CN202011041645.1A patent/CN112047065B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201211466A (en) * | 2010-09-07 | 2012-03-16 | Petrocom Energy Ltd | Coal blending system and coal feeder for use in the coal blending system |
| CN206075036U (en) * | 2016-08-26 | 2017-04-05 | 江苏大唐国际吕四港发电有限责任公司 | A kind of coal feeder control system |
| CN206068970U (en) * | 2016-09-23 | 2017-04-05 | 浙江硕成自动化设备有限公司 | Coal feeder control system based on PLC |
| CN208539808U (en) * | 2018-06-26 | 2019-02-22 | 山西天地王坡煤业有限公司 | A kind of feeder power supply system for coal-gangue separation |
| CN209259002U (en) * | 2018-11-26 | 2019-08-16 | 中国电力工程顾问集团西南电力设计院有限公司 | CFB unit is delivered coal system |
| CN110017498A (en) * | 2019-04-30 | 2019-07-16 | 中国能源建设集团西北电力试验研究院有限公司 | A kind of unit pulverized-coal system Starting mode |
| CN110003931A (en) * | 2019-05-10 | 2019-07-12 | 北京沄汇智能科技有限公司 | A kind of coal blending control system and method |
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| CN113341703A (en) * | 2021-05-11 | 2021-09-03 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Pre-coaling feed-forward optimal time difference algorithm for starting mill pre-judgment |
| CN114955444A (en) * | 2022-06-09 | 2022-08-30 | 西安交通大学 | Coal mine belt conveyor control method, device, equipment and readable storage medium |
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