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System and method for treating pulverized coal

A pulverized coal, imported technology, applied in hydrogen production, special carbonization, acetylene generator, etc., can solve the problems that pulverized coal needs to be improved

Pending Publication Date: 2017-10-17
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing means of dealing

Method used

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  • System and method for treating pulverized coal
  • System and method for treating pulverized coal
  • System and method for treating pulverized coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0110] The pulverized coal with an average particle size not higher than 6mm is supplied from the raw material bin to the sorting device for sorting, and the sedimentation velocity of the material is calculated according to the density characteristics of the material and the expected sorting effect, and the material is sorted according to the speed of the rising airflow. The air volume of the device in order to obtain low-ash pulverized coal and high-ash pulverized coal;

[0111] Supply the low-ash pulverized coal to the crushing device for crushing so as to obtain low-ash pulverized coal;

[0112] Feed the low-ash pulverized coal and powdered quicklime to the molding device for mixing and agglomeration, so as to obtain mixed pellets;

[0113] Supplying the mixed pellets to the first pyrolysis device to perform the first pyrolysis treatment at 500-1000 degrees Celsius, so as to obtain the first artificial petroleum, the first hydrogen-rich gas and carbon-containing active pell...

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Abstract

The invention discloses a system and method for processing pulverized coal. The system includes: a sorting device; a crushing device; a molding device; a first pyrolysis device, which has a mixed pellet inlet, a first artificial petroleum outlet, and a first hydrogen-rich gas outlet and carbon-containing active pellet outlet; calcium carbide furnace, which has carbon-containing active pellet inlet and calcium carbide outlet; acetylene generator, which has calcium carbide inlet, acetylene outlet and waste water outlet; second pyrolysis device, which has high-ash pulverized coal An inlet, a second man-made petroleum outlet, a second hydrogen-rich gas outlet, and an upgraded pulverized coal outlet; a pulping device, which has an upgraded pulverized coal inlet, a waste water inlet, and a coal-water slurry raw material outlet. The system combines powdered coal separation, pyrolysis and calcium carbide smelting technology. While solving the problem of powdered coal stacking and disposal, it can significantly improve the thermal efficiency in calcium carbide preparation. At the same time, the waste water generated by calcium carbide hydrolysis is used to prepare coal water slurry raw materials, and the side effects Man-made petroleum, hydrogen-rich gas and other products.

Description

technical field [0001] The invention relates to the field of energy and chemical industry, in particular, the invention relates to a system and method for processing pulverized coal. Background technique [0002] There are many ways to utilize pulverized coal containing carbon and hydrogen. Among them, pyrolysis is an ancient industrial production technology. This technology was first used in dry distillation of coal, and the obtained coke products are mainly used as fuel for smelting iron and steel. It is of great significance to use pyrolysis technology to treat pulverized coal, especially solid waste containing carbon and hydrogen. China generates a large amount of solid waste. The stockpile of industrial solid waste has exceeded 6 billion tons over the years. At present, the comprehensive utilization rate of industrial solid waste is only about 40%, and the treatment and disposal rate is quite low. Most of them are simply piled up, which seriously pollutes surface wate...

Claims

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Application Information

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IPC IPC(8): C10B53/08C10B57/00C10B53/04C10B57/06C10H19/00C10L1/32C10L3/10C01B3/02C01B32/942C01B32/40
CPCC10B53/08C01B3/02C10B53/04C10B57/00C10B57/06C10H19/00C10L1/326C10L3/10
Inventor 赵小楠丁力郭启海张顺利董宾刘维娜路丙川吴道洪
Owner SHENWU TECH GRP CO LTD
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