Reclaimed material loading system and reclaimed material loading method for asphalt stirring station

Abstract

The invention discloses a reclaimed material loading system and a reclaimed material loading method for an asphalt stirring station. The asphalt stirring station comprises a drying rotary drum. The drying rotary drum is used for heating reclaimed materials. The reclaimed material loading system for the asphalt stirring station comprises a reclaimed material supply device, an elevator, a switchingdevice and a mixture bin. The reclaimed material supply device is used for supplying the reclaimed materials for a feed inlet of the elevator; the switching device is connected with a discharge outletof the elevator, and the reclaimed materials can be fed into the drying rotary drum or can be fed into the mixture bin under the control of the switching device; the reclaimed materials can be received by the mixture bin and can be conveyed to the feed inlet of the elevator by the mixture bin. The reclaimed material loading system and the reclaimed material loading method have the advantages thatthe flow directions of the reclaimed materials can be quickly controlled by the switching device, accordingly, the production efficiency can be improved, the produced reclaimed materials conform to production standards, and risks that the reclaimed materials are adhered on a plurality of components such as the walls of the drying rotary drum, hot material temporary storage bins, metering scales and chutes can be reduced.

Description

technical field [0001] The invention belongs to the field of asphalt preparation, and in particular relates to a recycling material feeding system and a feeding method of an asphalt mixing plant. Background technique [0002] Asphalt mixture thermal regeneration technology is a technology for recycling waste asphalt mixture. After the cold waste asphalt mixture is sent to the drying heating system for drying and heating treatment, it is then mixed with a certain proportion of new asphalt mixture. . In the existing thermal regeneration technology, the cold waste asphalt mixture is directly sent to the inside of the drying drum for drying and heating by multiple cold silos, conveyor belt conveyors, and hoists. [0003] This feeding method currently has the following problems: due to the high setting height of the drying drum of the factory mixing heat regeneration equipment, the distance between the cold material bin and the feeding end of the drying drum is often relatively ...

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Problems solved by technology

[0003] This feeding method currently has the following problems: due to the high setting height of the drying drum of the factory mixing heat regeneration equipment, the distance between the cold material bin and the feeding end of the drying drum is often relatively long, and the feeding time is long, resulting in extremely high timing of feeding. Difficult to control, if the material is loaded first, and the burner starts to ignite, once the burner fails to ignite, a large amount of cold waste asphalt mixture will be sent to the drying drum, and this part of the cold waste asphalt mixture sent to the drying drum cannot be directly Participating in production and use, it is necessary to discharge all the cold waste asphalt mixture in the recycling equipment in time before continuing production. After the materials are mixed, a batch of regenerated heat materials with low temperature and high viscosity will be produced, which will increase the risk of adhering to the wall of the drying drum, heat material temporary storage bin, weighing scale, chute and other components, greatly The failure rate of the equipment is increased. Once sticky material or material blocking occurs, the equipment will not be able to operate normally; if the burner is ignited first, the cold waste asphalt mixture will be added after the ignition is successful. The distance is long, once the material is not loaded in time, it is very easy to cause the temperature inside the furnace and the drum to exceed the limit temperature, which not only has the risk of fire, but also causes waste of energy

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