Automatic dust prevention and suppression system of coal storage yard

Abstract

The invention relates to the technical field of environmental protection. An automatic dust prevention and suppression system of a coal storage yard comprises a water sprinkling system for the coal storage yard, and is characterized by further comprising a coal storage yard data acquisition system for acquiring environmental parameters of the coal storage yard, wherein the coal storage yard data acquisition system is connected with a signal processing system; the signal processing system is connected with the water sprinkling system through a control actuation system. According to the automatic dust prevention and suppression system of the coal storage yard, the environmental parameters such as the dust content and the moisture content of the storage yard can be mastered in real time through the coal storage yard data acquisition system, and a working state of the water sprinkling system is adjusted in real time through the signal processing system according to changes of the surrounding environmental parameters. The automatic dust prevention and suppression system of the coal storage yard realizes intelligent dust suppression of the coal storage yard, so that green and environmentally-friendly transformation and upgrading of the coal storage yard can be realized to push sustainable development of an enterprise with the coal storage yard.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an automatic dust-proof system. Background technique [0002] At present, the dust prevention and suppression measures commonly used in domestic coal storage yards mainly include: watering for dust suppression, film covering, spraying dust suppressants, setting up dust-proof nets, planting windbreak belts and large fixed covering structures, etc. [0003] Sprinkling dust suppression is a simple and efficient dust prevention method, which is widely used at home and abroad, and most bulk cargo yards are also equipped with sprinkler equipment. But there is no effective control method for how to control the sprinkling time and the sprinkling amount. The method of film covering is simple to operate and low in cost, but it is not suitable for frequent stacking operations in port stockpiles. Spraying dust suppressants on the stacking surface also has a good dust suppr...

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Problems solved by technology

Spraying dust suppressant on the stacking surface also has a good dust suppression effect, but the dust suppressant is expensive, and professional spraying equipment is required, and it will also have a certain impact on the quality of materials

The windproof net mainly achieves the purpose of dust reduction by reducing the ground wind speed, but limited by the height of the dustproof net, its best shielding effect is between 1 and 6 times the net height, and when the distance is greater than 6 times the net height, the windproof The wind-reducing effect of the net gradually weakens. When it is greater than 20 times the height of the net, the effect of the wind-proof net is only about 10%. Considering that the plane scale of the general large-scale port stockpile is relatively large, the effect of using the dust-proof net alone is not ideal. The actual situation is to use sprinkling water combined with dust net to suppress dust

The method of planting windbreak belts can also effectively reduce dust emission, and at the same time beautify the environment and reduce noise, but this requires a large area of ​​land and space, and the windbreak forest has the problem of leaf fall, so it is applicable to large coal storage yards Not strong

Large-scale fixed covering structures mainly use long-span grid structures to cover the entire coal stockpile, and have strip-shaped coal sheds, circular stockyards, etc. Due to the characteristics of spontaneous combustion in coal stockpiles, once signs of spontaneous combustion are found, the interior and sides of the coal stockpiles will be destroyed. The feet have stored a large amount of heat, which is difficult to completely eliminate, so there are potential safety hazards; the coal in the circular stockyard is first out, so there is a low utilization rate of the site and a long turnover period; if it must exist in separate piles, the use of circular stockyards The rate is very low; for the coal storage yards that have been built, adding this facility will also affect the utilization rate of the site. In addition, the investment in fixed covering structures is very huge, and the operation of the owner unit brings greater pressure; at present, such facilities in the world The maximum span of the structure is about 200 meters, and it is difficult to use closed structures for stock yards exceeding 200 meters

[0004] Generally speaking, most of the large coal storage yards in my country are generally strip-shaped, and are equipped with facilities such as water sprinklers and windproof dust suppression nets. The existing dust suppression arrangements for ordinary open-air coal storage yards are as follows: Figure 4 As shown, the existing common open-pit coal yard dust suppression control is as follows: Figure 5 As shown, the environmental protection effect of the actual operation is not ideal, and the dust spillage is still relatively serious. The main reason is that there is no yard monitoring data and no environmental data feedback. Based on experience, there is no practical and effective control technology to guarantee

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