CN103065209A - Coal yard management method - Google Patents
Coal yard management method Download PDFInfo
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Abstract
An embodiment of the invention discloses a coal yard management method which comprises the following steps of A. recording fire coal types, calorific values and storage weight information of fire coal in each batch and sequencing fire coal in each batch to be A, B, C...N; B. proportioning the fire coal in each batch according to a formula of W=Wa*A%+ Wb*B%+ Wc*C%+ ...Wn*N%; wherein the W is a default fire coal calorific value, the Wa is a fire coal calorific value of an A coal pile, the A% is weight ratio of the A coal pile to total weight; C. calculating usage amount of the fire coal in each batch according to total weight of used fire coal; and D deducting the usage amount of the fire coal in each batch from the storage weight of the fire coal in each batch to obtain storage amount of coal in each batch. The embodiment automatically selects appropriate proportion from stored fire coal to form fire coal meeting production requirements by enabling the fire coal in each batch to be in accordance with preset fire coal calorific values and/or preset sulphur content upper limit, and the embodiment updates storage data.
Description
Technical field
The present invention relates to coal-fired administrative skill field, relate in particular to a kind of coal yard management method.
Background technology
Thermal power plant adopts fire coal as fuel used to generate electricity, and consumption is huge, and every day, stock's the data variation that enters factory's amount, use amount, variable quantity was frequent, and manual record has not caught up with pace of change, and very easily makes mistakes.
And, generally consider the raw coal in the various sources of various calorific values to be used the difference such as cost, composition, character, impurity of various places raw coal, to reach the actual demand of economical and efficient.And at present on raw coal proportion is selected, adopt artificial experience to carry out rough proportioning, be difficult to the actual raw coal character of using of accurately control, thereby can not hold in advance techniques such as subsequent combustion, adjuvants.
Therefore, thermal power plant needs a cover automatically calculating, proportioning raw coal, and dynamically updates the management method of tank farm stock.
Summary of the invention
The embodiment of the invention provides a kind of can upgrade tank farm stock automatically, and automatically calculates the coal yard management method of the rational proportion of raw coal.
For achieving the above object, the embodiment of the invention provides following technical scheme:
A kind of coal yard management method may further comprise the steps:
A, the coal that records each batch fire coal, calorific value, warehouse-in weight information, and with the coal-fired serialization of each batch be A, B, C ..., N;
B, with each batch fire coal proportioning: W=Wa*A%+Wb*B%+Wc*C%+......+Wn*N% according to the following equation; Wherein, W is default coal-fired calorific value, and Wa is the coal-fired calorific value of sequence number A dump, and A% is sequence number A dump shared part by weight in general assembly (TW);
C, according to using coal-fired general assembly (TW), calculate the use amount of each batch of coal;
D, the warehouse-in weight of each batch of coal is deducted the use amount of each batch of coal, obtain the memory space of each batch of coal.
Preferably, described steps A also records the sulfur content of each batch fire coal;
Described step B also comprises after proportioning:
Coal-fired sulfur content after B1, the calculating proportioning: S=Sa*A%+Sb*B%+Sc*C%+......+Sn*N%; Wherein, S is the coal-fired sulfur content after the proportioning, and Sa is the coal-fired calorific value of sequence number A dump, and A% is sequence number A dump shared part by weight in general assembly (TW);
Whether the S that B2, determining step B1 draw is then to turn step C, otherwise turns step B3 less than or equal to the default sulfur content upper limit;
B3, the used proportion relation of eliminating change step B again over to.
Preferably, described steps A after serialization, also comprise with each batch fire coal set respectively priority P a, Pb, Pc ..., Pn, the P value is followed successively by 1-5 from low to high;
When described step B proportioning, the fire coal that coal-fired calorific value is identical sorts from high to low according to priority, uses first ordering coal-fired the preceding.
Preferably, described steps A also comprises manufacturer or the source place of each batch of record fire coal;
Described steps A after serialization, also comprise with each batch fire coal according to manufacturer or source place set respectively priority P a, Pb, Pc ..., Pn, the P value is followed successively by 1-5 from low to high;
When described step B proportioning, fire coal is sorted from high to low according to priority, use first ordering coal-fired the preceding.
Preferably, described ordering is carried out according to the limit priority of fire coal.
Preferably, the weight information of record each batch fire coal is in the steps A: record the joint number of unloading of each batch fire coal, the weight of this batch fire coal is described 60 tons of the joint number * of unloading.
Preferably,, give the alarm during in preset value at the low memory of each batch of coal.
Compared with prior art, the present invention has following beneficial effect:
1, scientific matching: a, the default coal-fired calorific value of basis, the coal-fired comprehensive proportioning with each calorific value different batches by adjusting the part by weight of each batch fire coal, is made into each batch fire coal the fire coal of realistic calorific value demand; B, according to the default sulfur content upper limit, automatically adjust the part by weight of each batch fire coal, each batch fire coal is made into the fire coal that meets the sulfur content emission standard; C, can set up according to actual conditions the priority of each batch fire coal on their own, allow system automatically adjust the use order of equal conditions fire coal;
2, automatically upgrade inventory data: according to warehouse-in weight and the use amount of each batch fire coal, automatically calculate the present memory space in warehouse, need not manually-operated.
Embodiment
The below will be clearly and completely described the technical scheme in the embodiment of the invention, and obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention is by the information of record each batch fire coal, again with each batch fire coal according to default coal-fired calorific value and/or the default sulfur content upper limit, automatically from the fire coal that enters the stock, select appropriate proportioning to form the fire coal that meets production requirement; And automatically calculate, updated stored amount data.It below is specific embodiment.
Embodiment one,
A kind of coal yard management method may further comprise the steps:
S101, the coal that records each batch fire coal, calorific value, warehouse-in weight information, and with the coal-fired serialization of each batch be A, B, C ..., N.
Can adopt following table to carry out record:
Wherein, the warehouse-in weight data in the table can adopt the account form of 60 tons of the joint number * of unloading to obtain, and also can actual weighing obtain.
S102, with each batch fire coal proportioning: W=Wa*A%+Wb*B%+Wc*C%+......+Wn*N% according to the following equation; Wherein, W is default coal-fired calorific value, and Wa is the coal-fired calorific value of sequence number A dump, and A% is sequence number A dump shared part by weight in general assembly (TW).
For example, formula is W=Wa*40%+Wb*40%+Wc*20%, and the fire coal that then represents this use is comprised of 40% A dump, 40% B dump and 20% C dump.
Again for example, need 5 tons of fire coals that calorific value is 6500Kcal/kg, A dump calorific value is 6700Kcal/kg, and B dump calorific value is 6200Kcal/kg, C dump calorific value is 6400Kcal/kg, through calculating, get A dump 45%, B dump 15%, C dump 40%, then can allot the fire coal that calorific value is 6500Kcal/kg, formula is W=6700*45%+6200*15%+6400*40%=6505, can satisfy Production requirement.
S103, according to using coal-fired general assembly (TW), calculate the use amount of each batch of coal.
For example, this uses fire coal is 5 tons, then can calculate the A dump and use the 5*0.45=2 ton, and the B dump has used the 5*0.15=2 ton, and the C dump has used the 5*0.4=2 ton.
After proportioning is determined, then can take by weighing the upper coal amount of actual use by electronic belt at the feeding point of correspondence, put into production.
S104, the warehouse-in weight of each batch of coal is deducted the use amount of each batch of coal, obtain the memory space of each batch of coal.
For example, the warehouse-in weight of the A dump that records among the step S101 is deducted the use amount of the A dump that calculates among the step S103, namely obtain the present memory space of A dump.
Need to prove that the memory space lower limit of predeterminable each batch of coal, gives the alarm, to remind managerial personnel's advanced processing during in preset value at the low memory of each batch of coal.
By above-mentioned steps, then can utilize this management method automatically to calculate the appropriate proportioning of each batch of coal, and automatically calculate its use amount and memory space, data upgrade in time.
Embodiment two,
S201, the coal that records each batch fire coal, calorific value, warehouse-in weight information, sulfur content, and with the coal-fired serialization of each batch be A, B, C ..., N.
Can adopt following table to carry out record:
S202, with each batch fire coal proportioning: W=Wa*A%+Wb*B%+Wc*C%+......+Wn*N% according to the following equation; Wherein, W is default coal-fired calorific value, and Wa is the coal-fired calorific value of sequence number A dump, and A% is sequence number A dump shared part by weight in general assembly (TW).
Coal-fired sulfur content after S203, the calculating proportioning: S=Sa*A%+Sb*B%+Sc*C%+......+Sn*N%; Wherein, S is the coal-fired sulfur content after the proportioning, and Sa is the coal-fired calorific value of sequence number A dump, and A% is sequence number A dump shared part by weight in general assembly (TW).
For example, A dump sulfur content is that 2.1%, B dump sulfur content is that 1.3%, C dump sulfur content is 1.2%; When in step S202, getting 40% A dump, 40% B dump, 20% C dump, S=2.1%*40%+1.3%*40%+1.2%*20%=1.752%.
Whether the S that S204, determining step S203 draw is then to turn step S206, otherwise turns step S205 less than or equal to the default sulfur content upper limit.
For example, be limited to 2% on the default sulfur content, the S that step S203 draws is 1.752%, less than 2%, satisfies the demands.
S205, the used proportion relation of eliminating change step S202 again over to.
After the proportion relation of 40% the A dump that adopts among the step S202,40% B dump, 20% C dump got rid of, change again step S202 over to, recalculate an assembly than relation, avoid being absorbed in endless loop.
S206, according to using coal-fired general assembly (TW), calculate the use amount of each batch of coal.
S207, the warehouse-in weight of each batch of coal is deducted the use amount of each batch of coal, obtain the memory space of each batch of coal.
Present embodiment continues the sulfur content of fire coal is calculated after satisfying the proportioning of calorific value again, meets the sulfur content standard and then can use this proportioning, does not meet the sulfur content standard and then recomputates proportioning after getting rid of this proportion relation.
Embodiment three,
S301, the coal that records each batch fire coal, calorific value, warehouse-in weight information, and with the coal-fired serialization of each batch be A, B, C ..., N.
S302, with each batch fire coal set respectively priority P a, Pb, Pc ..., Pn, the P value is followed successively by 1-5 from low to high.
Can in the form that step S301 uses, add field, as shown in the table:
S303, the fire coal that coal-fired calorific value is identical sort from high to low according to priority.
Sort the preceding that fire coal then can preferentially use, then adjusted the use order of each fire coal according to actual conditions.For example, the priority of E dump is 5, and the priority of A dump is 1, then the E dump is sorted before the A dump.
S304, with each batch fire coal proportioning: W=Wa*A%+Wb*B%+Wc*C%+......+Wn*N% according to the following equation; The same S102 of letter meaning.
For example, need to use 25% calorific value to be the fire coal of 5500Kcal/kg in the proportioning, the calorific value of A dump and E dump is identical all to be 5500Kcal/kg; According to the ordering situation of step S303, final mix proportion scheme is then selected the E dump, after the warehouse-in weight of E dump is finished using, selects the A dump again.
If need to calculate sulfur content, then calculate the same S203-S205 of performing step in this proportioning.
S305, according to using coal-fired general assembly (TW), calculate the use amount of each batch of coal.
S306, the warehouse-in weight of each batch of coal is deducted the use amount of each batch of coal, obtain the memory space of each batch of coal.
Present embodiment is set priority to fire coal, and is according to actual conditions adjustment use order, more convenient.
Embodiment four,
S401, the coal that records each batch fire coal, calorific value, warehouse-in weight, manufacturer or source place information, and with the coal-fired serialization of each batch be A, B, C ..., N.
Can adopt following table to carry out record:
S402, with each batch fire coal according to manufacturer or source place set respectively priority P a, Pb, Pc ..., Pn, the P value is followed successively by 1-5 from low to high.
The setting of this priority is relevant with manufacturer or source place.For example, all batches fire coal of A company can be set as priority is 5, perhaps is that to be set as priority be 5 for all batches fire coal in Shanxi with the source place.
S403, fire coal is sorted from high to low according to priority.
Sort the preceding that fire coal then can preferentially use, then adjusted the use order of each batch fire coal according to actual conditions.
If when there is a plurality of priority in certain batch of coal, then sort according to limit priority.
S404, with each batch fire coal proportioning: W=Wa*A%+Wb*B%+Wc*C%+......+Wn*N% according to the following equation; The same S102 of letter meaning.
For example, need to use 10% calorific value to be the fire coal of 5500Kcal/kg in the proportioning, the calorific value of A dump and E dump is identical all to be 5500Kcal/kg, but the manufacturer of A dump is A company, and the manufacturer of E dump is E company; According to the ordering situation of step S403, final mix proportion scheme is then selected the A dump, after the warehouse-in weight of A dump is finished using, selects the E dump again.
If need to calculate sulfur content, then calculate the same S203-S205 of performing step in this proportioning.
S405, according to using coal-fired general assembly (TW), calculate the use amount of each batch of coal.
S406, the warehouse-in weight of each batch of coal is deducted the use amount of each batch of coal, obtain the memory space of each batch of coal.
Present embodiment is set priority to manufacturer or the source place of fire coal, and is according to actual conditions adjustment use order, more convenient.
More than a kind of coal yard management method that the embodiment of the invention is provided be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in summary, this description should not be construed as limitation of the present invention.
Claims (7)
1. a coal yard management method is characterized in that, may further comprise the steps:
A, the coal that records each batch fire coal, calorific value, warehouse-in weight information, and with the coal-fired serialization of each batch be A, B, C ..., N;
B, with each batch fire coal proportioning: W=Wa*A%+Wb*B%+Wc*C%+......+Wn*N% according to the following equation; Wherein, W is default coal-fired calorific value, and Wa is the coal-fired calorific value of sequence number A dump, and A% is sequence number A dump shared part by weight in general assembly (TW);
C, according to using coal-fired general assembly (TW), calculate the use amount of each batch of coal;
D, the warehouse-in weight of each batch of coal is deducted the use amount of each batch of coal, obtain the memory space of each batch of coal.
2. a kind of coal yard management method according to claim 1 is characterized in that,
Described steps A also records the sulfur content of each batch fire coal;
Described step B also comprises after proportioning:
Coal-fired sulfur content after B1, the calculating proportioning: S=Sa*A%+Sb*B%+Sc*C%+......+Sn*N%; Wherein, S is the coal-fired sulfur content after the proportioning, and Sa is the coal-fired calorific value of sequence number A dump, and A% is sequence number A dump shared part by weight in general assembly (TW);
Whether the S that B2, determining step B1 draw is then to turn step C, otherwise turns step B3 less than or equal to the default sulfur content upper limit;
B3, the used proportion relation of eliminating change step B again over to.
3. a kind of coal yard management method according to claim 1 and 2 is characterized in that,
Described steps A after serialization, also comprise with each batch fire coal set respectively priority P a, Pb, Pc ..., Pn, the P value is followed successively by 1-5 from low to high;
When described step B proportioning, the fire coal that coal-fired calorific value is identical sorts from high to low according to priority, uses first ordering coal-fired the preceding.
4. a kind of coal yard management method according to claim 1 and 2 is characterized in that,
Described steps A also comprises manufacturer or the source place of each batch of record fire coal;
Described steps A after serialization, also comprise with each batch fire coal according to manufacturer or source place set respectively priority P a, Pb, Pc ..., Pn, the P value is followed successively by 1-5 from low to high;
When described step B proportioning, fire coal is sorted from high to low according to priority, use first ordering coal-fired the preceding.
5. a kind of coal yard management method according to claim 4 is characterized in that, described ordering is carried out according to the limit priority of fire coal.
6. a kind of coal yard management method according to claim 1 is characterized in that, the weight information of record each batch fire coal is in the described steps A: record the joint number of unloading of each batch fire coal, the weight of this batch fire coal is described 60 tons of the joint number * of unloading.
7. a kind of coal yard management method according to claim 1 is characterized in that,, gives the alarm during in preset value at the low memory of each batch of coal.
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Application publication date: 20130424 |