Crumb rubber modified asphalt electromagnetic wave heating device and safety system

Abstract

The invention relates to a crumb rubber modified asphalt electromagnetic wave heating device and a safety system. The device comprises a finished product tank, a matrix asphalt raw material tank and valves between connecting pipelines. The invention is characterized in that the safety system is mainly composed of an air compressor, a compressed air tank, a waste heat exchange safety can and a special insulating safety valve for asphalt; the air compressor is communicated with the compressed air tank; the compressed air tank is communicated with the waste heat exchange safety can through a valve; the outlet of the waste heat exchange safety can is connected with an electromagnetic wave heater and the crumb rubber modified asphalt finished product tank through the special insulating safety valve for asphalt; and the inlet of the waste heat exchange safety can is communicated with the outlet of the matrix asphalt raw material tank. The invention has the following beneficial effect: the electromagnetic wave heater used for heating asphalt has a zigzag three-dimensional cycle heating channel structure so that energy can be reduced by more than 30% compared with the prior art. The safety system which can perform overpressure protection to the pipeline and waste heat exchange to the heater is designed, thus the crumb rubber modified asphalt continuous production device can be used to realize safety production.

Description

technical field [0001] The invention belongs to a heating device for heating matrix asphalt and rubber powder modified asphalt in the asphalt industry, and in particular relates to a rubber powder modified asphalt electromagnetic wave heating device and a safety system. Background technique [0002] At present, in the asphalt industry, especially in the production of rubber powder modified asphalt, the heating of base asphalt and rubber powder modified asphalt is completed by burning coal, diesel or oil and natural gas. During the production process of the rubber powder modified asphalt continuous production plant, the base asphalt is quite sensitive to temperature. If the temperature of the base asphalt is low, the viscosity increases, and the system pressure may be over-pressurized, resulting in safety production accidents. During the working process of the heater, the working temperature sometimes exceeds 600 degrees Celsius. If a sudden accident occurs, the device will b...

AI Technical Summary

Problems solved by technology

During the production process of the rubber powder modified asphalt continuous production device, the base asphalt is quite sensitive to temperature. If the temperature of the base asphalt is low, the viscosity increases, and the system pressure may be overpressured, resulting in safety production accidents

During the working process of the heater, the working temperature sometimes exceeds 600 degrees Celsius. If a sudden accident occurs, the device will be shut down, and the waste heat in the heater will not be replaced, which will easily cause coking in the heater and greatly reduce the heating effect of the heater. If it is serious, the pipeline in the heater will be blocked, and the heater will eventually be scrapped.

Therefore, in the production process of the rubber powder modified asphalt continuous production device, there is a safety problem in raw material heating. The main problem is that the temperature is difficult to control accurately, which is likely to cause safety production accidents and increase energy consumption; heating by flames has low thermal efficiency; especially With the increasing shortage of petroleum products, the production cost continues to increase

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