Pulverized coal industrial boiler system

A technology of industrial boilers and pulverized coal, applied in the direction of block/powder supply/distribution, combustion methods, lighting and heating equipment, etc., can solve the problems of low thermal efficiency, pollution, huge energy waste, etc., and achieve clean emission and high combustion efficiency , The effect of stable pulverized coal transportation

CN102980200BActive Publication Date: 2014-12-31CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-12-31

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Abstract

The invention relates to a pulverized coal industrial boiler system. The pulverized coal industrial boiler system is characterized by comprising a pulverized coal feeding and separating filter, a pulverized coal storing and feeding device, a boiler burner, a flue gas integrated treatment device, a fly ash delivering and storing device and an inert gas protecting device; the feeding and separating filter filters pulverized coal and then conveys the pulverized coal to the pulverized coal storing and feeding device, the pulverized coal storing and feeding device stores the pulverized coal and supplies the pulverized coal to the boiler burner, the boiler burner exchanges heat with a thermodynamic system during the burning process and supplies hot water or steam to users; and flue gas after the combustion of the boiler burner is treated through the flue gas integrated treatment device and is delivered to the fly ash delivering and storing device, wherein the pulverized coal in the pulverized coal storing and feeding device needs to be protected through inertia gases which are provided by the inert gas protecting device during the storing process. The system integrates pulverized coal delivering, storing, feeding, flue gas treating and recycling into a whole, has high function integration level, a small occupation area, low operation cost, high economy and no dust and flue gas leakage, cannot cause environmental pollution and can be widely used for a pulverized coal feeding process.
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Description

Technical field

[0001] The invention relates to a boiler system, in particular to a pulverized coal industrial boiler system integrating transportation, storage, feeding, and flue gas treatment and recovery of pulverized coal. Background technique

[0002] At present, the pulverized coal boiler system is widely used in large-scale power stations, but it is rarely used in the field of industrial boilers. There have been some related research and products in the last century, but they all died due to some drawbacks and imperfect systems. The current general situation of coal-fired industrial boilers is low thermal efficiency, huge energy waste, and serious pollution (especially soot and sulfur dioxide). Therefore, there is an urgent need to study an energy-saving and emission-reduction system suitable for industrial boilers to comply with the national energy-saving and emission-reduction policies and solve the problem of low technology and equipment in the coal-fired industrial boi...

Examples

Embodiment Construction

[0027] The present invention will be described in detail below with reference to the drawings and embodiments.

[0028] Such as figure 1 As shown, the present invention includes a powder conveying separation filter 10, a powder storage and feeding device 20, a boiler burner, a flue gas integrated processing device 30, a fly ash conveying and storing device 40, and an inert gas protection device 50. The powder conveying separation filter 10 filters the pulverized coal and sends it to the powder storage and feeding device 20. The powder storage and feeding device 20 stores the pulverized coal and supplies it to the boiler burner. The pulverized coal is ignited by igniting the oil and gas. During the combustion process, the burner exchanges heat with the thermal system and delivers it to users in the form of hot water or steam. The flue gas burned by the boiler burner is processed by the integrated flue gas processing device 30 and sent to the fly ash transportation and storage devi...