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

A technology for separation, recovery and upgrading of coal, which is used in special forms of dry distillation, petroleum industry, coke ovens, etc., and can solve the problems of small processing capacity and difficult industrial application.

Pending Publication Date: 2019-07-12
浙江天禄环境科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This equipment can decompose pulverized coal into gas, tar gas and coal with high calorific

Method used

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

Examples

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Example Embodiment

[0134] like figure 1 , figure 2 As shown, a method for pulverized coal gasification reduction and upgraded coal separation and recovery includes the following steps:

[0135] (1) Under the action of the reclaimer, the coal in the raw coal yard is screened by the screening machine, crushed by the crusher, and then enters the fine coal silo through the conveying device.

[0136] The coal stacked in the raw coal yard is reclaimed by a side-type scraper reclaimer with a reclaiming capacity of 400t / h, and the working time is calculated as 10h. Mainly for the lump coal to enter the lump coal yard for storage, and the under-sieve material with a particle size of ≤30mm will enter the roller crusher for crushing, with an optional output of 200t / h, and the crushed material with a particle size of ≤13mm will pass through the belt conveyor. It is sent to the powder coal silo, and the length of the belt conveyor is 55m.

[0137] (2) The pulverized coal in the fine coal silo enters the ...

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Abstract

The invention discloses a method for gasification reduction of pulverized coal and separation and recycling of upgraded coal. The method comprises following steps: 1), raw coal is screened and pulverized by a pulverizer and pulverized coal enters a slack coal silo; 2), the pulverized coal in the slack coal silo is dried, then enters a primary gasification reduction device and a secondary gasification reduction device and is reacted sufficiently, an obtained material enters a cold slag humidification system and then enters an upgraded coal silo through a gasification discharging device, and anupgraded coal product is obtained; 4), ash residues obtained by a gas-solid separation system is conveyed to the secondary gasification reduction device, and oil sludge returns to the a secondary gasification device through an oil sludge conveying device; 5), a non-condensable gas is gasified to supply heat to a reaction system, and dewatered non-condensable gas and flue gas with waste heat supplyheat to a pre-dewatering device to dry a material; 6), flue gas containing dust and steam, which is produced by the pre-dewatering device, is subjected to cloth bag dedusting and condensation recovery successively under the power action of an induced draft fan.

Description

technical field [0001] The invention relates to the technical fields of coal clean pretreatment, comprehensive utilization, energy saving and emission reduction, in particular to a method for gasification reduction of pulverized coal and separation and recovery of upgraded coal. 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 p...

Claims

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Application Information

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IPC IPC(8): C10B53/04C10B43/00C10B57/00
CPCC10B43/00C10B53/04C10B57/00Y02P20/129
Inventor 潘志钢吕彬峰冯振涵李荣辉李正平
Owner 浙江天禄环境科技有限公司
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