Mixing plant and silo explosion prevention control method, controller and system of filler silo of mixing plant

Abstract

The invention discloses a silo explosion prevention control method, a silo explosion prevention controller and a silo explosion prevention system of a filler silo of a mixing plant, and the mixing plant with the silo explosion prevention system. The filler silo of the mixing plant comprises a feeding pipe set, a filler silo body and a pinch valve, wherein the feeding pipe set extends into the filler silo body, and the pinch valve is arranged on the feeding pipe set. The silo explosion prevention control method comprises the steps of obtaining a value of the pressure of the interior of the filler silo through detection, comparing the value of the pressure with a preset pressure value to obtain a comparison result, and controlling the pinch valve to carry out switching between the opening position and the closing position according to the comparison result so that switching can be carried out on the state of connection between the feeding pipe set and the filler silo and the state of disconnection between the feeding pipe set and the filler silo. According to the silo explosion prevention control method, the silo explosion prevention controller and the silo explosion prevention system of the filler silo of the mixing plant, and the mixing plant with the silo explosion prevention system, due to the fact that the value of the pressure of the interior of the filler silo is detected in real time, feeding to the filler silo can be stopped when the pressure of the interior of the filler silo is overhigh, the pressure of the interior of the filler silo is prevented from further increasing, the problem that the pressure of the interior of the filler silo is overhigh is substantially solved, the phenomenon that the filler silo explodes is effectively prevented from happening, and then safety of production of the mixing plant is improved.

Description

technical field [0001] The invention relates to the field of concrete, in particular to an explosion-proof bin system of a mixing station powder bin and a mixing station including the explosion-proof bin system. Background technique [0002] At present, concrete mixing plants have achieved unprecedented development, but with the increasing environmental protection requirements for the production site of concrete mixing plants in the industry, more and more areas, especially developed metropolitan areas, have successively proposed "environmentally friendly mixing plants (buildings)" )"the concept of. The environment-friendly mixing station mainly includes the full encapsulation of the stock yard, inclined belt, main building and powder silo, and has enhanced the effects of dust removal, shockproof and noise reduction inside. In addition, it is also equipped with a sand separator and a slurry water recovery system. etc., in order to achieve "zero discharge" of materials produ...

AI Technical Summary

Problems solved by technology

In actual production, when feeding materials to the powder silo of the mixing station, due to overpressure, the powder silo and its accessories are prone to accidents, which brings safety hazards to the on-site staff and causes dust to overflow and pollute the environment

In the prior art, a pressure safety valve is usually installed in the powder silo for pressure relief. However, due to various reasons, the pressure safety valve may be damaged, and the accident of the warehouse bursting due to overpressure cannot be avoided.

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