Gasification equipment for heating asphalt and method of equipment

Abstract

The invention provides gasification equipment for heating asphalt and a method of the equipment. The equipment mainly includes a pulverized coal storage tank, an aerator, a volumetric screw conveyor,an ejector, a gasification furnace burner, a gasification furnace, an asphalt mixing station device, a residue breaker, a residue tank and a residue catching machine; and the method comprises the following steps: dry pulverized coal is sent into the normal-pressure gasification furnace, the dry pulverized coal and air are subjected to a high-temperature gasification reaction to generate crude coalgas mainly composed of CO and H2, the crude coal gas is sent to the asphalt mixing station device, and at the same time, ash residues are in a molten state in the gasification process and flows out through the lower part of the gasification furnace and is discharged through a residue discharge unit. The gasification furnace is core equipment of the entire equipment, and has the characteristics ofultra-high temperature gasification and a high residue catching rate through the unique design; and the equipment provided by the invention is used for heating the asphalt, has the characteristics ofa high carbon conversion rate and a high residue catching rate, and the economical and environmental protection performance of the equipment can be improved.

Description

technical field [0001] The invention relates to a gasification device and process for heating asphalt, in particular to a gasification device and method for heating asphalt. Background technique [0002] Asphalt mixing plant, also known as asphalt concrete mixing plant, refers to a complete set of equipment for mass production of asphalt concrete. It can produce asphalt mixture, modified asphalt mixture, and colored asphalt mixture. Necessary equipment for roads, airports, ports. Highway asphalt mixing plant is not only a very important construction equipment in asphalt pavement construction, but also the most polluting equipment in road construction. Asphalt mixing plants will produce a large amount of harmful substances in the process of burning fuel, including carbon dioxide, sulfur dioxide and nitrogen oxides. These harmful substances are extremely harmful to the natural environment. A series of technical measures for energy saving and emission reduction are required to...

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Problems solved by technology

[0005] Due to the characteristics of the asphalt mixing plant industry, it is required that the gasification device must have low investment, quick start and stop, and safe and reliable operation. Therefore, it is necessary to choose the normal pressure gasification method. At present, the normal pressure gasification device has been installed in the asphalt mixing plant. However, it did not solve the problems caused by the low gasification intensity of the atmospheric pressure gasifier, and finally exposed the problems of low carbon conversion rate and insufficient slag collection rate.

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