CN115161046B - Automatic tracking method for silo discharging - Google Patents
Automatic tracking method for silo discharging Download PDFInfo
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- CN115161046B CN115161046B CN202210782676.5A CN202210782676A CN115161046B CN 115161046 B CN115161046 B CN 115161046B CN 202210782676 A CN202210782676 A CN 202210782676A CN 115161046 B CN115161046 B CN 115161046B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000007599 discharging Methods 0.000 title claims description 9
- 239000003245 coal Substances 0.000 claims abstract description 236
- 238000002156 mixing Methods 0.000 claims abstract description 149
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000010835 comparative analysis Methods 0.000 claims abstract description 3
- 238000007726 management method Methods 0.000 claims description 59
- 239000000463 material Substances 0.000 claims description 21
- 238000004939 coking Methods 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000007619 statistical method Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000010200 validation analysis Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
- C10B41/005—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke for charging coal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to a silo blanking automatic tracking method, which belongs to the silo blanking field, and the method comprises the steps of collecting coal blending time during each coal blending, recording information such as a coal tower number, a coal silo blanking amount, a planned coal blending ratio and the like, carrying out statistical analysis on actual conditions of each coal blending, carrying out comparative analysis on the actual conditions of each coal blending and the planned coal blending ratio, checking the difference between the planned coal blending ratio of each silo and the actual coal blending ratio or the difference between the planned ratio of each variety and the actual ratio, and rapidly knowing the difference between the actual ratio of each coal blending and the planned ratio and guiding production.
Description
Technical Field
The invention belongs to the field of silo blanking, and relates to an automatic silo blanking tracking method.
Background
After the coking coal enters the silo, the coking coal is fed according to a coal blending scheme and finally enters a coal tower. Coking coal in a silo is influenced by factors such as hanging materials, and the discharging flow of the coking coal fluctuates, so that the actual coal blending ratio of each blending and the planned coal blending ratio deviate. At present, silo discharging is manually counted according to shifts to obtain actual shifts, the starting time, the ending time, the coal blending weight, the number of entering coal towers and the difference between the actual coal blending ratio and the planned coal blending ratio of each shift cannot be queried, and coal blending tracking and coke quality prediction are not facilitated.
Disclosure of Invention
In view of the above, the invention aims to provide an automatic tracking method for silo blanking, which realizes the rapid inquiry of actual proportioning and planned proportioning of different coal towers in the same shift in different time periods, realizes the tracking of the coal blending ratio and guides the coal blending.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the automatic silo blanking tracking method comprises the following steps:
s1: recording a coal blending plan adjustment scheme in the central control system, generating a coal blending plan number, transmitting the coal blending plan number to the intermediate management system, and transmitting the coal blending plan number to the field operation system after auditing;
s2: after receiving the latest coal blending plan, the on-site operating system prompts the manager that the latest coal blending plan appears;
s3: checking whether a new coal blending plan number issued by the central control system exists or not by the on-site operation system, if so, checking the material variety, the corresponding coal blending ratio, the start execution time, the scheme adjustment reason and the special remark requirement;
s4: confirming whether the varieties of coking coals corresponding to the silos are correct or not;
s5: selecting a coal blending plan number in a field operation system, and automatically ending the last coal blending plan number when the coal blending plan number is selected to be the latest; selecting a silo number, a belt material line, a material transfer material line and a coal tower number, sending the silo number, the belt material line, the material transfer material line and the coal tower number to an intermediate management system, and forwarding the intermediate management system to a central control system;
s6: inputting the dry base proportion of the silo in the field operation system, generating a wet base proportion, sending the wet base proportion to the intermediate management system, forwarding the wet base proportion to the central control system by the intermediate management system, and prompting the wet base proportion with the intermediate management system and the field operation system if the sum of the base proportions is not 100%;
s7: starting a belt through a field operation system, starting coal blending, generating coal blending time, reading the weight of the belt scale under each silo according to a certain time by an intermediate management system, and forwarding to a central control system;
s8: ending the coal blending, generating the coal blending ending time, and stopping belt transportation;
s9: the intermediate management system sends each batching actual result to the central control system, and the sending content comprises batching plan numbers, batching start time, batching end time, each silo plan proportion, manufacturing codes corresponding to each silo, actual blanking weight of each silo and coal tower numbers;
s10: the central control system calculates the planned proportion and the actual proportion difference of each coal blending, each shift coal blending or each day according to the manufacturing code and the silo number, and inquires.
Further, in step S1, the coal blending plan adjustment scheme includes a material variety and a coal blending ratio, and the execution start time and the scheme adjustment reason.
In step S8, the intermediate management system reads the batching end time and judges the silo blanking weight according to the weighing weight of the belt balance under each coal silo disc feeder; after the batching is finished, the intermediate management system sends each batching actual result to the central control system, and the sending content comprises a batching plan number, batching starting time, batching finishing time, each silo plan proportioning, each silo corresponding manufacturing code, each silo actual result blanking weight and a coal tower number.
Further, the coal bin number is correspondingly associated with the coking coal name, if the coking coal variety needs to be replaced by the silo, the on-site operation system is changed, the on-site operation system sends the name change to the intermediate management system, and the intermediate management system receives information and forwards the information to the central control system.
Further, the silo blanking enters a coal tower for identification; before the coal blending starts, different trend of the belt lines are set, the entering coal tower numbers are selected, the on-site operation system judges whether the entering coal tower numbers are correct according to the routes of the coal bunker blanking belt lines, and if the entering coal tower numbers are incorrect, the on-site operation system prompts and requests correction.
Further, according to the coal blending plan number, the on-site operation system inputs the dry basis ratio of the blanking of each silo, and the wet basis ratio, the dry basis flow and the wet basis flow are automatically calculated.
Further, the field operation system comprises an automatic control system and a manual control system; the automatic control system is used for automatically controlling the coal blending according to the set wet base flow after the coal blending is started, and automatically adjusting the flow if the actual flow exceeds the set flow by a certain range, and the actual flow reaches the specified range; the manual control system is used for blanking according to the set flow after coal blending begins, and the actual flow is adjusted manually when the actual flow does not meet the requirement.
Further, the middle management system collects the weight of the belt weigher under each coal bunker disc feeder and extracts weight change according to a certain time; subtracting the previous weight from the previous weight to obtain the blanking amount in the period of time; the coal blending start time and the coal blending end time are sent to an intermediate management system through a field operation system, and the intermediate management system is forwarded to a central control system; the central control system is sent by the intermediate management system according to the blanking weight, the planned proportioning, the proportioning plan number and the information related to the coal tower number of each coal bunker of the secondary coal blending.
Further, the central control system compares the planned dry base proportion, the planned wet base proportion, the actual dry base proportion and the actual wet base proportion of each silo, and checks the discharging execution condition of each silo; the central control system calculates the actual dry base ratio and the actual wet base ratio of each variety of the batch according to the actual blanking ratio of each silo, and performs comparative analysis according to the coal blending ratio in the coal blending plan number to obtain the difference between the actual coal blending ratio and the planned coal blending ratio of each variety of coal blending.
The invention has the beneficial effects that: the invention realizes the rapid query function of the difference between the actual coal blending ratio and the theoretical coal blending ratio, and is beneficial to guiding the quality control of coal blending and coke.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
fig. 1 is a flowchart of the silo blanking automatic tracking method according to the invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, the main purpose of the present invention is to realize the fast inquiry of actual proportioning and planned proportioning when different time periods of the same shift enter different coal towers, realize the tracking of the coal blending ratio, and guide the coal blending.
When the coal is blended in the silo, the coal blending time is collected by each coal blending and blanking, the information such as the coal tower number, the coal silo blanking amount, the planned coal blending ratio and the like is recorded to carry out statistical analysis on the actual condition of each coal blending, and the statistical analysis is carried out on the statistical analysis and the planned coal blending ratio, so that the difference between the planned coal blending ratio and the actual coal blending ratio of each coal silo and the difference between the planned ratio and the actual ratio of each variety are checked. The difference between the actual proportioning of each coal blending and the planned proportioning can be quickly known, and the production is guided.
In the present invention, there are three stages of systems: a central control system, an intermediate management system and a field operation system. The field operation system is a system for directly controlling and collecting data of the field device at the front end, the intermediate management system is used for inputting and managing the data collected by the field operation system, performing simple processing and uploading the data to the central control system, and also is used for receiving instructions and data issued by the central control system and managing the input data of the field operation system; the central control system has the highest authority, all planning and whole plant data calculation and management are carried out in the central control system, after the planning is finished, the non-secret information is issued to the intermediate management system for display, and the field operator operates the field operation system according to the instruction displayed in the intermediate management system, so that the field equipment is controlled to execute tasks.
1. The coal bunker number is associated with the coking coal name. An operator inputs coking coal varieties loaded in each silo in a field operation system. If the silo changes the coking coal variety, the on-site operation system sends the name of the coking coal variety to the intermediate management system, and the intermediate management system receives the information and forwards the information to the central control system.
2. And feeding the silo into a coal tower for identification. And after the silo is fed, the silo is transported through different belt lines and finally enters different coal towers. Each belt stockline transfer can be combined with 2 other stocklines to form a belt conveyor line. Therefore, if the silo is transferred through N belts after discharging, 2 can appear N The belt transport mode reaches the coal tower. Before the coal blending starts, workers set different trend of the belt line and select the number of entering coal towers. The on-site operation system judges whether the number of the entering coal tower is correct according to the route of the coal bunker blanking belt line, and prompts and requires correction if the number of the entering coal tower is incorrect.
3. The coal blending system has a large number of silos, and each silo is provided with 6 feed inlets, so that each coal silo cannot be selected to enter a coal tower. Because each silo has 2 unloading main belts down, has 3 disc feeders on every main belt. Therefore, the blanking of each silo enters the same main belt to be selected, and the operation quantity is reduced. The selection mode is as follows:
| coal bunker number | Belt stockline | Coal tower |
| 1#-8# | H101/H102 | 1# coal tower/2 # coal tower/3 # coal tower |
| 9#-16# | H103/H104 | 1# coal tower/2 # coal tower/3 # coal tower |
4. And determining a coal blending scheme. The central control system inputs the coal blending plan adjustment scheme. The scheme comprises material varieties, coal blending ratio, starting execution time and scheme adjustment reasons, generating a coal blending plan number, sending the coal blending plan number to an intermediate management system, checking by a responsible person of the intermediate management system, and sending the coal blending plan number to a field operation system after checking. The on-site operation system prompts the on-site operation system after receiving the latest coal blending plan, and on-site personnel know the latest coal blending plan according to the prompt. When the coal blending scheme needs to be executed, a field operator selects a coal blending plan number in a field operation system, and when the coal blending plan number is selected to be the latest, the last coal blending plan number is automatically ended.
5. And calculating the wet base coal blending ratio and the wet base flow. According to the coal blending plan number, the on-site operation system inputs the dry basis ratio of the blanking of each silo, and the system automatically calculates and obtains the wet basis ratio, the dry basis flow and the wet basis flow.
Wet base proportioning calculation principle: the on-site operation system is used for adjusting the moisture of coking coal under each coal bin in the central control system. The moisture reading principle is that the current dry basis input time is the cut-off time, and the latest coking coal moisture of the coal bunker is searched. Wet basis ratio = dry basis ratio/(1-moisture)
Wet basis flow = main belt total flow × wet basis formulation
6. The field operation system flow control system is divided into an automatic control system and a manual control system. An automatic control system: after the coal blending is started, the automatic control is carried out according to the set wet base flow, if the actual flow exceeds the set flow by plus or minus a certain range, the system carries out flow adjustment until the actual flow reaches the specified range. Manual control system: after the coal blending is started, blanking is carried out according to the set flow, and manual adjustment is needed when the actual flow does not meet the requirement.
7. The middle management system collects the weight of the belt weigher under each coal bunker disc feeder and extracts weight change according to a certain time. And subtracting the previous weight from the previous weight to obtain the blanking amount in the period of time. The coal blending start time and the coal blending end time are sent to the intermediate management system through the intermediate management system, and the intermediate management system is forwarded to the central control system. The central control system is sent by the intermediate management system to the relevant information such as the blanking weight, the planned proportioning, the proportioning plan number, the coal tower number and the like of each coal bunker of the secondary coal blending.
8. The central control system compares the planned dry base ratio, the planned wet base ratio, the actual dry base ratio and the actual wet base ratio of each silo, and is convenient for checking the discharging execution condition of each silo. The central control system calculates the actual dry base ratio and the actual wet base ratio of each variety of the batch according to the actual blanking ratio of each silo, and performs comparison analysis according to the actual blending ratio of the blended coal in the blending plan number, wherein the actual blending ratio of the blended coal of each variety is different from the planned blending ratio.
By the measures, the tracking of the execution condition of each coal blending ratio under the same bin, the tracking of each shift and the execution of each coal blending every day are realized.
Examples:
1. the central control system inputs the coal blending plan adjustment scheme. The scheme comprises material varieties, coal blending ratio, starting execution time and scheme adjustment reasons, generating a coal blending plan number, sending the coal blending plan number to an intermediate management system, checking by a responsible person of the intermediate management system, and sending the coal blending plan number to a field operation system after checking.
2. The intermediate management system is audited and then sent to the on-site operation system, the on-site operation system prompts the latest coal blending plan after receiving the latest coal blending plan, and on-site personnel know the latest coal blending plan according to the prompt.
3. An operator checks whether a new coal blending plan number issued by the central control system exists or not in the field operation system, and if the new coal blending plan number exists, the operator checks the material variety and the corresponding coal blending ratio, and starts executing time, scheme adjustment reasons and special remark requirements.
4. On-site personnel confirm whether the coking coal varieties corresponding to the silos are correct.
5. The on-site operation system selects a coal blending plan number (when the coal blending plan number is selected to be the latest, the last coal blending plan number is automatically ended, a silo number, a belt line, a material transfer line and a coal tower number are selected, an intermediate management system is sent, and the intermediate management system forwards the central control system.
6. The on-site operation system inputs the silo dry base proportion, the system automatically generates wet base proportion, the wet base proportion is sent to the intermediate management system, and the intermediate management system forwards the central control system. If the sum of the base ratios is not 100%, the prompt is given.
And 7, starting the belt, clicking to start blending coal to generate blending time, and reading the weight of the belt scale under each silo according to a certain time by the intermediate management system.
8. And (5) the on-site operator clicks the end of coal blending in the intermediate management system, and the end of coal blending is indicated at the moment, the end time of coal blending is generated, and belt transportation is stopped. The middle management system judges the blanking weight according to the weighing weight of the belt balance under each coal bunker disc feeder. After the batching is finished, the intermediate management system sends the batching actual results to the central control system. The sending content comprises a batching plan number, batching start time, batching end time, each silo plan proportion, each silo corresponding manufacturing code, each silo actual performance blanking weight and a coal tower number.
9. The central control system calculates the planned proportion and the actual proportion difference of each coal blending, each shift coal blending or each day according to the manufacturing code and the silo number, and inquires.
Proportioning actual results: the production unit code, the recipe plan number, the validation time, the stock line, the start time, the stop time, and the like may be used as query conditions, and the query details include the production unit code, the recipe plan number, the validation time, the stock line, the start time, the stop time, the recipe proportioning, and the actual result proportioning, as shown in table 1.
TABLE 1
The operation steps are as follows: the coal blending operator selects production units, blending schedule numbers (the system automatically takes out the effective time), stocklines.
Clicking the production unit code to any position of the C line (except the single bin proportioning column), comparing the planned proportioning of the current proportioning with the actual proportioning, and the result is shown in Table 2:
TABLE 2
Note that: 1) -1% or more and 1% or less of the ratio difference, and displaying normally; 2) The proportion difference is more than or equal to 1 percent and less than or equal to 2 percent, the proportion difference is more than or equal to-2 percent and less than or equal to-1 percent, and the yellow color is displayed; 3) The proportion difference is more than 2 percent, the proportion difference is less than-2 percent, and the red color is displayed.
Clicking the production unit code as C rows of single bin proportioning columns, and comparing the planned proportioning and the actual proportioning of each coal bin of the ingredients, wherein the results are shown in tables 3 and 4:
TABLE 3 Table 3
TABLE 4 Table 4
Note that: 1) -1% or more and 1% or less of the ratio difference, and displaying normally; 2) The proportion difference is more than or equal to 1 percent and less than or equal to 2 percent, the proportion difference is more than or equal to-2 percent and less than or equal to-1 percent, and the yellow color is displayed; 3) The proportion difference is more than 2 percent, the proportion difference is less than-2 percent, and the red color is displayed.
Dry basis ratio of the coal tower: and inquiring the planned proportion and actual proportion of each coal bunker by taking the blending date, the shift number and the coal tower number as inquiry conditions.
1) The single-bin coal moisture of each coal bin is recorded by an on-daily-inspection and test system of an inspection and test personnel, the single-bin coal moisture is sent to a central control system by the inspection and test system, the single-bin coal moisture is sent to an intermediate management system by the central control system, and the single-bin coal moisture is read by the intermediate management system.
2) And the coal blending operator inputs the single-bin dry basis proportioning, and the system automatically calculates according to the single-bin coal moisture to obtain the wet basis planned proportioning. If the single-bin coal moisture is not received in time on the same day, the single-bin coal moisture is taken out for the last time to receive the moisture, namely the single-bin coal moisture is taken out for the latest received moisture detection result, as shown in tables 5 and 6.
3) Setting a total proportioning function, adding the dry base coal blending ratio of each coal bin, and prompting if the total proportioning is not 100%.
TABLE 5
TABLE 6
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (9)
1. A silo blanking automatic tracking method is characterized in that: the method comprises the following steps:
s1: recording a coal blending plan adjustment scheme in the central control system, generating a coal blending plan number, transmitting the coal blending plan number to the intermediate management system, and transmitting the coal blending plan number to the field operation system after auditing;
s2: after receiving the latest coal blending plan, the on-site operating system prompts the manager that the latest coal blending plan appears;
s3: checking whether a new coal blending plan number issued by the central control system exists or not by the on-site operation system, if so, checking the material variety, the corresponding coal blending ratio, the start execution time, the scheme adjustment reason and the special remark requirement;
s4: confirming whether the varieties of coking coals corresponding to the silos are correct or not;
s5: selecting a coal blending plan number in a field operation system, and automatically ending the last coal blending plan number when the coal blending plan number is selected to be the latest; selecting a silo number, a belt material line, a material transfer material line and a coal tower number, sending the silo number, the belt material line, the material transfer material line and the coal tower number to an intermediate management system, and forwarding the intermediate management system to a central control system;
s6: inputting the dry base proportion of the silo in the field operation system, generating a wet base proportion, sending the wet base proportion to the intermediate management system, forwarding the wet base proportion to the central control system by the intermediate management system, and prompting the wet base proportion with the intermediate management system and the field operation system if the sum of the base proportions is not 100%;
s7: starting a belt through a field operation system, starting coal blending, generating coal blending time, reading the weight of the belt scale under each silo according to a certain time by an intermediate management system, and forwarding to a central control system;
s8: ending the coal blending, generating the coal blending ending time, and stopping belt transportation;
s9: the intermediate management system sends each batching actual result to the central control system, and the sending content comprises batching plan numbers, batching start time, batching end time, each silo plan proportion, manufacturing codes corresponding to each silo, actual blanking weight of each silo and coal tower numbers;
s10: the central control system calculates the planned proportion and the actual proportion difference of each coal blending, each shift coal blending or each day according to the manufacturing code and the silo number, and inquires.
2. The method for automatically tracking silo discharge according to claim 1, wherein: the coal blending plan adjustment scheme in the step S1 comprises material varieties and coal blending ratios, starting execution time and scheme adjustment reasons.
3. The method for automatically tracking silo discharge according to claim 1, wherein: in the step S8, the intermediate management system reads the batching end time and judges the silo discharging weight according to the weighing weight of the belt balance under each coal silo disc feeder; after the batching is finished, the intermediate management system sends each batching actual result to the central control system, and the sending content comprises a batching plan number, batching starting time, batching finishing time, each silo plan proportioning, each silo corresponding manufacturing code, each silo actual result blanking weight and a coal tower number.
4. The method for automatically tracking silo discharge according to claim 1, wherein: the coal bin number is correspondingly associated with the coking coal name, if the coking coal variety needs to be replaced by the silo, the on-site operation system is changed, the on-site operation system sends the name change to the intermediate management system, and the intermediate management system receives the information and forwards the information to the central control system.
5. The method for automatically tracking silo discharge according to claim 1, wherein: identifying the number of the coal tower fed from the silo; before the coal blending starts, different trend of the belt lines are set, the entering coal tower numbers are selected, the on-site operation system judges whether the entering coal tower numbers are correct according to the routes of the coal bunker blanking belt lines, and if the entering coal tower numbers are incorrect, the on-site operation system prompts and requests correction.
6. The method for automatically tracking silo discharge according to claim 1, wherein: according to the coal blending plan number, the on-site operation system inputs the dry basis ratio of the blanking of each silo, and the wet basis ratio, the dry basis flow and the wet basis flow are automatically calculated.
7. The method for automatically tracking silo discharge according to claim 1, wherein: the field operation system comprises an automatic control system and a manual control system; the automatic control system is used for automatically controlling the coal blending according to the set wet base flow after the coal blending is started, and automatically adjusting the flow if the actual flow exceeds the set flow by a certain range, and the actual flow reaches the specified range; the manual control system is used for blanking according to the set flow after coal blending begins, and the actual flow is adjusted manually when the actual flow does not meet the requirement.
8. The method for automatically tracking silo discharge according to claim 1, wherein: the middle management system collects the weight of the belt weigher under each coal bunker disc feeder and extracts weight change according to a certain time; subtracting the previous weight from the previous weight to obtain the blanking amount in the period of time; the coal blending start time and the coal blending end time are sent to an intermediate management system through a field operation system, and the intermediate management system is forwarded to a central control system; the central control system is sent by the intermediate management system according to the blanking weight, the planned proportioning, the proportioning plan number and the information related to the coal tower number of each coal bunker of the secondary coal blending.
9. The method for automatically tracking silo discharge according to claim 1, wherein: the central control system compares the planned dry base ratio, the planned wet base ratio, the actual dry base ratio and the actual wet base ratio of each silo, and checks the discharging execution condition of each silo; the central control system calculates the actual dry base ratio and the actual wet base ratio of each variety of the batch according to the actual blanking ratio of each silo, and performs comparative analysis according to the coal blending ratio in the coal blending plan number to obtain the difference between the actual coal blending ratio and the planned coal blending ratio of each variety of coal blending.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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