Multi-type material continuously feeding method for

Abstract

The utility model discloses a multi-type material continuously feeding method. The method comprises the following steps of: firstly, setting high position bunker which comprises setting current bunker and setting preset bunker, wherein the current bunker is the final high position bunker of current batch of material and the preset bunker is the final high position bunker of next batch of material; secondly, judging whether there are material on belt conveyor or not and starting vibration feeder; thirdly, dynamically calculating the belt length which needed to be postponed; fourthly, determining the moment for finishing the weighting of the batch material and seeking the position where the end of material flow of a batch of material arrives and determining the moment of finishing weighting of a batch of material; fifthly, dynamically correcting amount of gap and dynamically correcting the weighting results of current batch material according to the cumulative weight of the actual weight of a patch of material and set laying-off quantity; sixthly, updating the information of underground bunker; finally, material-discharging trolley automatically changes bunker and material-discharging trolley automatically goes to the position of preset bunker after the current patch of material finishes material-loading.

Description

technical field [0001] The invention relates to the field of metallurgical automation, in particular to a multi-material continuous feeding method. Background technique [0002] The raw material conveying system in a steelmaking plant usually consists of an underground silo, a high-level silo in each workshop, a belt conveyor conveying system and an unloading trolley. The main function of the system is to transport the materials in the underground silo to the high-level silo corresponding to the material type in time through the belt conveyor according to the use of the materials in the high-level silo, so as to ensure that the materials in the high-level silo can meet the needs of normal production. [0003] In order to prevent the occurrence of mixed materials, the precondition for changing the warehouse of the unloading trolley is that there is no material on all the belt conveyors. The main purpose is that after the trolley is in place, the program must check the materia...

AI Technical Summary

Problems solved by technology

[0007] 1) From the perspective of energy saving, all belt conveyors must be started and stopped once in each batch of feeding process, but this process increases the number of starts and stops of the equipment and affects the service life of the equipment

[0008] 2) Each batch of feeding must wait for the material to be empty, which consumes a lot of feeding time and reduces the feeding efficiency

[0009] 3) It is impossible to accurately grasp the running position of the material, and it is difficult to flexibly handle abnormal situations. From a certain point of view, it will also reduce the efficiency of feeding

When the distance between the underground silo and the high-level silo is far away, the emptying time of each batch of materials will account for more than half of the entire feeding time, which seriously affects the feeding efficiency

If the running time of a single batch of tailings is 12 minutes, the running time of tailings in 28 silos will reach more than 5 hours, which cannot meet the needs of the normal production rhythm of the converter

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