Oil shale dry distillation semi-coke dry-process coke-discharging device

Abstract

The invention belongs to the technical field of dry distillation production, and particularly relates to an oil shale dry distillation semi-coke dry-process coke-discharging device. The device of theinvention comprises an oil shale dry distillation furnace, a cooling coke-quenching and waste heat recovery unit, a furnace continuous coke-discharging unit and an oil shale dry distillation semi-cokeexport unit, which are successively connected from top to bottom. In the prior art, wet-process coke discharging devices have high water consumption during coking, heat cannot be recovered, sewage isgenerated, and semi-coke has overhigh content of moisture but low energy utilization; and in some areas with relatively scarce water resources, wet-process coke discharging devices are limited to water during coking, and development and utilization of oil shale are severely constrained. The above problems are solved by the device of the invention. The device of the invention adapts to imbalance of resource distribution, breaks through water restrictions, is beneficial to development of the oil shale industry, and greatly improves energy utilization rate and reduces pollution.

Description

technical field [0001] The invention belongs to the technical field of dry distillation production, and in particular relates to an oil shale dry distillation semi-coke dry coke extraction device. Background technique [0002] Oil shale is a solid fossil fuel with huge reserves between coal and oil. Shale oil can be obtained after dry distillation at about 500 °C. As an important supplementary and alternative energy source for petroleum, shale oil has superior properties and is widely used. [0003] At present, the existing oil shale dry distillation production technologies all use wet coking devices, and the oil shale dry distillation semi-coke at about 600 °C (depending on whether the furnace type has a generating section or a gas combustion device) is directly discharged into the bottom of the furnace. in the quenching basin / pool. The characteristic of the wet coke extraction device is to form a water seal under the vertical retort furnace to prevent the gas in the furn...

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Problems solved by technology

[0004] The purpose of the oil shale dry distillation semi-coke dry method coke extraction device provided by the present invention is to overcome the high water consumption, unrecoverable heat and sewage generation during coking of the wet coke extraction device in the prior art, and the high moisture content of the semi-coke and the energy consumption of the semi-coke. The problem of low utilization; the second purpose is to overcome the problem that in the prior art, in areas where water resources are relatively scarce, the coking of wet coking equipment is limited by water, and the development and utilization of oil shale is severely restricted.

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