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Lignite column-type pulsing airflow drying and dry separation synergetic upgrading device and method

A technology of pulsating air flow and quality improvement equipment, which is applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems of simultaneous drying and dry separation of lignite, high-efficiency quality improvement, and singleness, so as to avoid spontaneous combustion and prolong drying time , the effect of high wind speed

Active Publication Date: 2015-04-01
CHINA UNIV OF MINING & TECH
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Problems solved by technology

Because lignite is easy to slime, the lignite dehydration and upgrading processes developed at home and abroad focus on the removal of water and pay less attention to lignite separation and deashing. Most of them use a single dehydration method to improve lignite quality, and it is impossible to realize lignite drying and dry separation at the same time. double high efficiency

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  • Lignite column-type pulsing airflow drying and dry separation synergetic upgrading device and method

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specific Embodiment

[0049] A lignite column-type pulsating airflow drying and dry separation synergistic upgrading equipment, including a drying airflow and pulsating separation mechanism and a lignite dry dry separation synergistic upgrading mechanism;

[0050] The dry air flow and pulsation separation mechanism includes: frequency converter-3, blower 4, gas storage tank 5, ventilation pipe 8, gas flow meter-6, manual valve-7, electric control cabinet 9, electric heater 10. Manual valve 2 14, upper branch pipe 16, material receiving pipe 18, lower branch pipe 19, inverter 4 20, pulse valve 22, gas flow meter 2 23, drying column 32, sorting column 31, PLC controller 2 , host computer 1; air outlet of blower 4 is connected with gas storage tank 5, PLC controller 2 output terminal is connected with the control end of blower 4 through frequency converter-3; gas storage tank 5 is connected with gas flow rate through ventilation pipe 8 Meter 16 and manual valve 17 are connected, gas flow meter 16 and ...

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Abstract

The invention relates to a lignite column-type pulsing airflow drying and dry-separation synergetic upgrading device and method. The upgrading device comprises a drying airflow and pulsing sorting mechanism and a lignite drying and dry-separation synergetic upgrading mechanism. By the control of a PLC and an upper computer and the sorting and drying of a hot airflow pipeline, a double-upgrading efficient technology for carrying out ash removal and dehydration on lignite, namely, a lignite pulsing airflow drying and dry-separation synergetic efficient upgrading technology is achieved; by the upgrading technology, the problem that the ash removal and dehydration cannot be simultaneously achieved in the prior art is solved.

Description

technical field [0001] The invention relates to the field of lignite drying and dry separation, in particular to a lignite column type pulsating airflow drying and dry separation collaborative quality improvement equipment and method. Background technique [0002] my country's lignite not only has high moisture content (30%-50%), but also has high ash content (15%-30%), so its calorific value is low, which seriously limits the large-scale utilization of my country's lignite. Whether it is to reduce the moisture or ash content of lignite, its calorific value can be significantly increased. Because lignite is easy to slime, the lignite dehydration and upgrading processes developed at home and abroad focus on the removal of water and pay less attention to lignite separation and deashing. Most of them use a single dehydration method to improve lignite quality, and it is impossible to realize lignite drying and dry separation at the same time. Double efficiency improvement. Co...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/08
Inventor 王海锋何亚群侯浩葛林瀚杨兴张光文
Owner CHINA UNIV OF MINING & TECH
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