Hot-blast stove chamber, drying system and drying method

Abstract

The invention provides a hot-blast stove chamber, a drying system and a drying method. The hot-blast stove chamber comprises a stove chamber body, an air outlet and a driving mechanism; the air outletcomprises a plurality of rotating blades; the multiple rotating blades are circumferentially arrayed and are rotatably arranged on the stove chamber body; the multiple rotating blades surround to form a conical air outlet; and the driving mechanism is connected with the multiple rotating blades and drive the multiple rotating blades to synchronously rotate so as to adjust the diameter of the airoutlet. The diameter of the air outlet is adjusted, so that the effect that the flow rate of hot air blown by the air outlet of the stove chamber is adjusted in time under the condition that equipmenthas different yields is achieved flexibly, the energy utilization rate is increased, and energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to a hot blast furnace, a drying system and a drying method, and is mainly used in a waste asphalt drying and heating system. Background technique [0002] Asphalt mixture thermal regeneration technology is a technology to recycle waste asphalt mixture. After the 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, heating methods can generally be divided into direct heating by high-temperature flame heat radiation and indirect heating by medium-temperature hot air. Among them, in order to reduce the asphalt on the surface of waste asphalt mixture during The degree of aging is often indirectly heated by medium-temperature hot air. However, the method of indirect heating with medium-temperature hot air currently has the following problems: [0003] 1. Due to the relatively low...

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Problems solved by technology

[0003] 1. Due to the relatively low temperature of medium-temperature hot air used as the heating medium, the heat exchange efficiency is relatively low, resulting in relatively low equipment capacity;

[0004] 2. The dimensions and specifications of each type of drying drum and hot blast furnace are generally designed according to the requirements of the maximum output and are fixed. Moreover, due to cost and site constraints, the design size of the drying drum is often limited, so In the fixed and limited heat exchange area, it is impossible to make flexible adjustments in time according to the change of production output, resulting in the loss and waste of heat energy (energy)

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