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Lignite upgrading device

A lignite and turntable technology, which is applied in lighting and heating equipment, indirect heating and carbonization, indirect heat exchangers, etc., can solve the problems that the gear transmission cannot drive the turntable to rotate, the gears cannot be fully meshed, and the dust particles are easy to get stuck, etc., to achieve large Driving force, increased stability, enhanced stability effect

Active Publication Date: 2015-02-25
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the gears in the prior art are easily deformed at relatively high calcination temperature, and dust particles are easily stuck in the gear gap during calcination, so that the gears cannot be completely meshed, and the gear transmission cannot drive the turntable to rotate; furthermore Propose a lignite upgrading device that does not apply gear mechanism and can operate in high temperature and dusty environment

Method used

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Embodiment Construction

[0051] The lignite upgrading device of the present invention is as figure 1 As shown, it includes a rotary heater 13, which is provided with an inlet and an outlet; a gas-solid separator 14, which is provided with an inlet, a gas outlet and a solid outlet, and is used for gas-solid separation of the cracked coal material. The rotary heater 13 The outlet of the gas-solid separator 14 is in communication with the inlet of the gas-solid separator 14. The gas-solid separator 14 is any conventional equipment that can realize gas and solid separation in the prior art. In this embodiment, the gas-solid separator 14 is a cyclone separator; a semi-coke cooler 15 is provided with a feed port 18 and a discharge port 19, and the solid outlet of the gas-solid separator 14 communicates with the feed port 18 of the semi-coke cooler 15, The semi-coke cooler 15 is any equipment in the prior art that can realize semi-coke cooling; the tar condenser 16 is provided with an inlet, an oil outlet an...

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Abstract

The invention discloses a lignite upgrading device sequentially comprising a turntable heater, a gas-solid separator, a semicoke cooler and a tar condenser. The lignite upgrading device is characterized in that the turntable heater comprises a turntable, a heating part, a plurality of rotating wheels and motors and a circular orbit, wherein the circular orbit is arranged at the bottom of the turntable, the plurality of rotating wheels are fixedly arranged below the circular orbit along the circumference of the circular orbit, and the circular orbit is suitable for sliding along the plurality of rotating wheels and driving the turntable to rotate, so that the turntable can stably rotate, and meanwhile, the rotating wheels can drive the turntable to finish the large-scale lignite drying and thermolysis processes; and the generated semicoke is cooled in a rotary cooling drum, cooling water becomes steam after being heated, the heat of the steam is recycled by a steam utilization unit, and cooled water is continued to be recycled in the semicoke cooler, so that the lignite upgrading efficiency is increased, and the lignite upgrading effect is improved. The lignite upgrading device is suitable for a lignite material upgrading process.

Description

technical field [0001] The invention relates to a lignite upgrading device, which belongs to the technical field of coal upgrading. Background technique [0002] Lignite is a coal with low heat production efficiency. It has high moisture content, low calorific value, and is easy to weather and spontaneously combust. In order to improve the heat production efficiency of lignite, it is generally necessary to upgrade lignite before use. The upgrading of lignite is mainly a process of directly or indirectly drying and pyrolyzing lignite to remove internal free water and adjust the internal composition and structure of lignite. For example, Chinese patent document CN102250633A discloses a method for upgrading lignite with an externally heated rotary furnace. After the lignite is dried and desorbed in a rotary drying furnace at 100-300°C, it is then put into a rotary carbonization furnace at 450-700°C. The pyrolysis time is 40min-2h. After pyrolysis, semi-coke and high-temperatu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/16C10B53/04C10B47/30
Inventor 任相坤张殿奎董宇航顾爱萍
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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