CN213610822U - Automatic coal blending system for coal mine coal washing plant - Google Patents
Automatic coal blending system for coal mine coal washing plant Download PDFInfo
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- CN213610822U CN213610822U CN202021251797.XU CN202021251797U CN213610822U CN 213610822 U CN213610822 U CN 213610822U CN 202021251797 U CN202021251797 U CN 202021251797U CN 213610822 U CN213610822 U CN 213610822U
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Abstract
The utility model provides an automatic coal blending system for a coal washing plant of a coal mine, which belongs to the technical field of coal washing control and comprises a coal bunker, a coal feeder, a mining electronic belt scale, an ash content instrument, a frequency converter, a PLC (programmable logic controller), an upper computer, a belt conveyor and a mixed coal bunker arranged at the tail end of the belt conveyor; a plurality of coal bunkers are arranged in sequence; the coal feeder is arranged at the outlet position of the coal bunker and used for conveying the raw coal in each coal bunker to the mining electronic belt scale; the weighing sensor and the speed sensor of the mining electronic belt scale are respectively connected with the PLC, and the mining electronic belt scale is used for measuring the coal feeding amount of the belt conveyor in real time and conveying raw coal to the belt conveyor; the mixing coal bin is provided with a stirrer; the ash content instrument is connected with the PLC and arranged on the mixed coal bunker; the frequency converter is connected with the PLC. The system is simple in structure, reasonable in design, convenient and fast to use and operate, capable of monitoring the loading and transporting process of the slack coal in real time, capable of guaranteeing the quality stability of the commercial coal and good in using effect.
Description
Technical Field
The utility model belongs to the technical field of coal washing selection control, specifically disclose a colliery coal washery is with automatic blending system.
Background
With the increasingly subdivided coal market demands, coal blending production is an important component in coal washing and selecting processing, is a necessary way for widening coal product varieties, meeting user requirements and expanding sales markets, is necessary for the technical development of clean coal, and is also in order to meet the requirement of environmental protection. At present, most of coal washing plants of domestic mines mainly depend on manual operation of coal blending by operators, the deviation is large, the real quality of commercial coal cannot be objectively reflected, coal quality business disputes often occur or high-quality coal is sold at low price, and economic loss of a mining party is caused.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned manual blending exists, the utility model provides a simple structure, reasonable in design uses the convenient automatic blending system for coal mine coal washery of operation, realizes automatic blending.
In order to achieve the purpose, the utility model provides an automatic coal blending system for a coal mine coal washing plant, which comprises a coal bunker, a coal feeder, a mine electronic belt scale, an ash content meter, a frequency converter, a PLC (programmable logic controller), an upper computer, a belt conveyor and a mixed coal bunker arranged at the tail end of the belt conveyor; a plurality of coal bunkers are arranged in sequence, and each coal bunker is filled with different types of raw coal; the coal feeders correspond to the coal bunkers one by one, are arranged at the outlet positions of the coal bunkers and are used for conveying raw coal in each coal bunker to the mining electronic belt weigher, and the coal feeder motors are connected with the frequency converters; the mining electronic belt weighers correspond to the coal feeders one by one, weighing sensors and speed sensors of the mining electronic belt weighers are connected with the PLC respectively, and the mining electronic belt weighers are used for measuring the coal feeding amount of the belt conveyor in real time and conveying raw coal to the belt conveyor; the mixed coal bin is used for receiving various raw coals on the belt conveyor and is provided with a stirrer for uniformly mixing the various raw coals; the ash content meter is connected with the PLC, arranged on the mixed coal bunker and used for detecting the ash content of the slack coal in the mixed coal bunker in real time; the frequency converter is connected with the PLC, and the coal feeding amount of the coal feeder is controlled according to the signal value of the PLC; the host computer is connected with the PLC controller, is provided with the coal blending module, and the coal blending module is used for predetermineeing target grey score value, calculates raw coal cooperation proportion according to target grey score value and passes through PLC controller control converter, receives the actual measurement grey score value of PLC controller feedback to pass through PLC controller adjustment converter according to the matching result of actual measurement grey score value and target grey score value.
Further, the upper computer is also provided with an alarm module for alarming when the actually measured gray value and the target gray value cannot be matched.
Furthermore, the host computer still is provided with the printing module that is used for taking notes automatic blending system working condition for coal mine coal washery.
Further, the upper computer is also provided with a network expansion module used for being connected with a remote monitoring system.
Further, the ash analyzer is an active ash analyzer, a passive ash analyzer or a laser ash analyzer.
The utility model has the advantages of it is following:
1. the utility model realizes automatic coal blending by reasonably setting the positions of the coal bunker, the coal feeder, the mining electronic belt scale, the ash content meter and the belt conveyor and matching with the PLC and the upper computer using the modular design, and has simple structure, reasonable design and convenient realization;
2. the utility model can monitor ash content in real time, ensure stable and reliable quality of the slack coal and is convenient to use and operate;
3. the utility model has high control reliability and good working stability;
4. the utility model has strong practicability, good use effect and convenient popularization and use;
5. the utility model discloses have network extended function, realize remote monitoring very easily.
Drawings
FIG. 1 is a schematic structural diagram of an automatic coal blending system for a coal mine coal washing plant.
In the figure: 1-a coal bunker; 2-a coal feeder; 3-mining electronic belt scale; 4-an ash content meter; 5-a frequency converter; 6-a PLC controller; 7-an upper computer; 8-a belt conveyor; 9-mixing the coal bunker; 10-a stirrer.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment provides an automatic coal blending system for a coal mine coal washing plant, which comprises a coal bunker 1, a coal feeder 2, a mine electronic belt scale 3, an ash content meter 4, a frequency converter 5, a PLC (programmable logic controller) 6, an upper computer 7, a belt conveyor 8 and a mixed coal bunker 9 arranged at the tail end of the belt conveyor; a plurality of coal bunkers 1 are arranged in sequence, and different types of raw coal are filled in each coal bunker 1; the coal feeders 2 correspond to the coal bunkers 1 one by one, are arranged at the outlet positions of the coal bunkers 1 and are used for conveying raw coal in each coal bunker 1 to the mining electronic belt scale 3, and the coal feeder motors are connected with the frequency converters 5; the mining electronic belt weighers 3 correspond to the coal feeders 2 one by one, weighing sensors and speed sensors of the mining electronic belt weighers 3 are respectively connected with the PLC 6, and the mining electronic belt weighers 3 are used for measuring the coal feeding amount of the belt conveyors 8 in real time and conveying raw coal to the belt conveyors 8; the mixed coal bin 9 is used for receiving various kinds of raw coal on the belt conveyor 8 and is provided with a stirrer 10 for uniformly mixing the various kinds of raw coal; the ash content instrument 4 is connected with the PLC 6, is arranged on the mixed coal bunker 9 and is used for detecting the ash content of the slack coal in the mixed coal bunker 9 in real time; the frequency converter 5 is connected with the PLC 6 and controls the coal feeding amount of the coal feeder 2 according to the signal value of the PLC 6; host computer 7 is connected with PLC controller 6, is provided with the coal blending module, and the coal blending module is used for predetermineeing target grey score value, calculates raw coal cooperation proportion according to target grey score value and passes through PLC controller 6 control converter 5, receives the actual measurement grey score value of PLC controller 6 feedback to pass through PLC controller 6 adjustment converter 5 according to the matching result of actual measurement grey score value and target grey score value.
Further, the upper computer 7 is also provided with an alarm module for alarming when the measured gray value cannot be matched with the target gray value.
Further, the upper computer 7 is also provided with a printing module for recording the working condition of the automatic coal blending system for the coal mine coal washing plant.
Further, the upper computer 7 is also provided with a network expansion module for connecting with a remote monitoring system.
Specifically, the control software used by the upper computer 7 is mainly configuration software, such as: InTouch: wonderware, IFix, Citech, WinCC, ASPEN-tech, Movicon, century star, three-dimensional force control, KingView of configuration, Realinfo of Zijin bridge, MCGS, Controx and easy control, etc., preferably configuration king and IFix.
Further, the ash analyzer 4 is an active ash analyzer, a passive ash analyzer or a laser ash analyzer.
The working process of the automatic coal blending system for the coal mine coal washing plant is as follows:
firstly, inputting initial values of ash content in two or more coal bunkers in an upper computer 7, then setting a target ash content value, automatically calculating the proportion of each coal bunker by the upper computer 7, and sending a signal to a frequency converter 5 through a PLC (programmable logic controller) 6 to control the coal feeding amount of a coal feeder 2; the coal of a plurality of kinds of different initial ashes is transported to belt conveyor 8 through mining electron belt weigher 3 on, through the mixture more than twice, ash content appearance 4 measures the ash content value after the misce bene, feeds back host computer 7 through ash content appearance 4. And after the upper computer 7 matches the actual measurement ash value with the target ash value, the PLC 6 instructs the corresponding frequency converter 5 to adjust the coal feeding amount of the coal feeder 2 until the error between the actual measurement ash value and the target ash value is within the required error range. And if the coal cannot be matched, stopping coal blending when an alarm is given out, and storing corresponding information in a history record.
Through practical application and detection of ancient book yards in the Jinzao coal group, the automatic coal blending range of the automatic coal blending system for the coal mine coal washing plant is 10-50%, when the ash content is 15-30%, the error can be controlled within +/-0.5%, and the error of other ranges is controlled within +/-0.5%.
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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. An automatic coal blending system for a coal mine coal washing plant is characterized by comprising a coal bunker, a coal feeder, a mine electronic belt scale, an ash content instrument, a frequency converter, a PLC (programmable logic controller), an upper computer, a belt conveyor and a mixed coal bunker arranged at the tail end of the belt conveyor;
a plurality of coal bunkers are arranged in sequence, and each coal bunker is filled with different types of raw coal;
the coal feeders correspond to the coal bunkers one by one, are arranged at the outlet positions of the coal bunkers and are used for conveying raw coal in each coal bunker to the mining electronic belt scale, and the motors of the coal feeders are connected with the frequency converters;
the mining electronic belt weighers correspond to the coal feeders one by one, weighing sensors and speed sensors of the mining electronic belt weighers are connected with the PLC respectively, and the mining electronic belt weighers are used for measuring the coal feeding amount of the belt conveyor in real time and conveying raw coal to the belt conveyor;
the mixed coal bin is used for receiving various raw coals on the belt conveyor and is provided with a stirrer for uniformly mixing the various raw coals;
the ash content meter is connected with the PLC, arranged on the mixed coal bunker and used for detecting the ash content of the slack coal in the mixed coal bunker in real time;
the frequency converter is connected with the PLC, and the coal feeding amount of the coal feeder is controlled according to the signal value of the PLC;
the host computer is connected with the PLC controller, is provided with and is used for predetermineeing target grey score value, calculates raw coal cooperation proportion according to target grey score value and passes through PLC controller control converter, receives the actual measurement grey score value of PLC controller feedback to pass through the coal blending module of PLC controller adjustment converter according to the matching result of actual measurement grey score value and target grey score value.
2. The automatic coal blending system for the coal mine coal washing plant according to claim 1, wherein the upper computer is further provided with an alarm module for alarming when the measured ash value cannot be matched with the target ash value.
3. The automatic coal blending system for the coal mine coal washing plant according to claim 2, wherein the upper computer is further provided with a printing module for recording the working condition of the automatic coal blending system for the coal mine coal washing plant.
4. The automatic coal blending system for the coal mine coal washing plant according to claim 3, wherein the upper computer is further provided with a network expansion module for connecting with a remote monitoring system.
5. The automatic coal blending system for a coal mine coal washing plant of claim 1, wherein the ash meter is an active ash meter, a passive ash meter or a laser ash meter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021251797.XU CN213610822U (en) | 2020-07-01 | 2020-07-01 | Automatic coal blending system for coal mine coal washing plant |
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| CN202021251797.XU CN213610822U (en) | 2020-07-01 | 2020-07-01 | Automatic coal blending system for coal mine coal washing plant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113694821A (en) * | 2021-09-13 | 2021-11-26 | 江苏立源自动化工程有限公司 | Accurate coal blending system of railway freight car |
| CN113750903A (en) * | 2021-08-24 | 2021-12-07 | 中国神华煤制油化工有限公司 | Coal blending device |
| CN114019919A (en) * | 2021-10-28 | 2022-02-08 | 山西晋煤集团技术研究院有限责任公司 | Automatic coal blending system and method for slack coal of coal washing plant |
| CN114950261A (en) * | 2022-05-31 | 2022-08-30 | 陕西陕煤曹家滩矿业有限公司 | Coal blending control system |
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2020
- 2020-07-01 CN CN202021251797.XU patent/CN213610822U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113750903A (en) * | 2021-08-24 | 2021-12-07 | 中国神华煤制油化工有限公司 | Coal blending device |
| CN113694821A (en) * | 2021-09-13 | 2021-11-26 | 江苏立源自动化工程有限公司 | Accurate coal blending system of railway freight car |
| CN114019919A (en) * | 2021-10-28 | 2022-02-08 | 山西晋煤集团技术研究院有限责任公司 | Automatic coal blending system and method for slack coal of coal washing plant |
| CN114950261A (en) * | 2022-05-31 | 2022-08-30 | 陕西陕煤曹家滩矿业有限公司 | Coal blending control system |
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