Material level balance control method and system

Abstract

The invention discloses a silo material-level balance control method and a system. The method comprises the following steps that: multiple material level gauges are used to detect the material level in a silo; and the discharging amount of at least one of multiple feeders is adjusted according to the material level detected by the material level gauges. By virtue of the technical scheme, the material level in the silo can be detected by the material level gauges, and whether the material discharging speed of the feeders is changed is determined according to the detected material level, thus the material level can be adjusted in time when the material level in the silo is not balanced, further, the operation is not influenced, and simultaneously, the safety and stability of whole discharging process are ensured.

Description

technical field [0001] The invention relates to a material level balance control system and method, in particular to a material level balance control system and method for a large coal storage silo. Background technique [0002] The port is the hub of the main artery of transportation. In order to realize the safe and effective cargo pivot function in the port, professional and automated storage, transportation and loading processes are essential. According to the characteristics of materials, the scale of freight, and the efficiency of material storage and transportation, various material storage scheduling schemes are used in today's port transportation to coordinate freight. For example, grain, cement and other materials are mostly stored in silos, while coal ore is mostly stored in open yards. [0003] For coal transport ports, storage in open storage yards will cause great pollution to the environment and the materials stacked are easily affected by the weather, while ...

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Problems solved by technology

[0004] Silo coal storage has been adopted in power plants and coal mines, but coal mines and power plants have short coal storage time, small storage capacity, single process flow, low efficiency requirements, single coal variety and do not involve the mixing of different coal types. The most important thing about coal storage in ports is high efficiency, multi-variety, mixed coal, high throughput and long storage time. Appropriate transformation and improvement of coal storage silo in terms of structure, function and use method

[0005] In particular, for the large-scale silos required for large-scale storage, the horizontal cross-section of the silos is required to be large. In this way, when coal leaks from the bottom of the silos, there will often be an overall or partial material level imbalance in the silos. This will cause the coal in certain positions in the silo to fail to leak to the belt conveyor through the feeder at the bottom of the silo in time, resulting in long-term accumulation of this part of coal and cannot be replaced by new coal

The long-term stacking of coal is easy to cause natural gas, and may even cause an explosion, which is very dangerous. Therefore, it is necessary to balance and control the material level in the silo in time.

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