Method for gasification reduction of pulverized coal and separation and recycling of liquid

A liquid separation and pulverized coal technology, applied in special forms of dry distillation, petroleum industry, coke ovens, etc., can solve the problems of small processing capacity and difficult industrial application, and achieve the effect of increasing production and improving reaction efficiency.

Pending Publication Date: 2019-07-12
浙江天禄环境科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

This equipment can decompose pulverized coal into gas, tar gas and coal with high calorific value, but the processing capacity is small and it is difficult to be applied industrially

Method used

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  • Method for gasification reduction of pulverized coal and separation and recycling of liquid
  • Method for gasification reduction of pulverized coal and separation and recycling of liquid
  • Method for gasification reduction of pulverized coal and separation and recycling of liquid

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Embodiment Construction

[0121] Such as figure 1 , figure 2 As shown, a method for pulverized coal gasification reduction and liquid separation and recovery includes the following steps:

[0122] (1) The pulverized coal in the powder coal silo enters the pre-dehydration device for drying through the discharge device at the bottom of the silo, and the dried pulverized coal enters the primary gasification reduction device through the gasification feeding device, and the reacted solid material is then passed through The airtight high-temperature-resistant conveying device enters the secondary gasification and reduction device.

[0123] The coal stored in the powder coal silo is easy to raise dust, so a bottom dust collector is installed on the top to prevent dust from escaping. The storage capacity of the powder coal silo is 1500T / day, and the material is conveyed through the buried scraper and screw at the bottom of the silo, etc. The combined discharge device discharges the material, adopts a single...

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Abstract

The invention discloses a method for gasification reduction of pulverized coal and separation and recycling of a liquid. The method comprises steps as follows: the pulverized coal is dried, the driedpulverized coal is subjected to primary gasification reduction and secondary gasification reduction and then enters a cold slag humidification system, and an upgraded coal product is obtained; oil andgas produced through the primary and secondary gasification reduction are subjected to gas-solid separation and oil-gas cooling respectively in sequence, and coal tar, wastewater and ash are obtained; rich gas obtained after the oil gas is cooled enters an electric tar catching device, and a certain amount of light oil and a small amount of ash are obtained; the rich gas enters a liquefied gas separation device for liquefied separation, and liquid oil and liquefied gas are obtained; the rich gas enters a reduced-pressure tank and a rich gas cabinet successively under the action of primary andsecondary pressure reducing devices, the rich gas from the rich gas cabinet produces high-temperature flue gas through gasification heat supply to supply a heat source to primary and secondary gasification reduction devices, and low-temperature flue gas produced after heat supply and hot air for dewatering heat supply are combined together to form dewatered flue gas so as to supply a heat sourceto a pre-dewatering device.

Description

technical field [0001] The invention relates to the technical fields of coal cleaning pretreatment, comprehensive utilization, energy saving and emission reduction, and in particular to a method for pulverized coal gasification reduction and liquid separation and recovery. Background technique [0002] According to the "Action Plan for Clean and Efficient Utilization of Coal (2015-2020)" issued by the National Energy Administration, it will promote the clean and efficient utilization mechanism of coal, build a clean, efficient, low-carbon and sustainable coal clean utilization system, and encourage low-rank coal classification R&D and demonstration of fractional technology. In the future, the main direction of the utilization of coal by grade and quality is to make clean fuels and high-quality raw materials, which can not only be independently industrialized for deep processing, but also coupled with coal chemical industry to change the traditional path. [0003] At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/04C10B43/00C10B57/00
CPCC10B53/04C10B43/00C10B57/00Y02P20/129
Inventor 吕彬峰马倩李正平潘建波金飞伟
Owner 浙江天禄环境科技有限公司
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