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Coal pulverizing system of thermal power plant and capacity expansion method thereof

A technology for a thermal power plant and a pulverizing system, which is applied to combustion methods, block/powder fuel preparation, combustion equipment, etc., can solve the problems of increased coal consumption and low investment in the pulverizing system, and reduce the cost of civil construction investment. , the effect of reducing costs

Active Publication Date: 2015-04-29
CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0014] The purpose of this invention is to solve the problem that the pulverizing system needs to be expanded due to the increase in coal consumption after the expansion of the unit, and the investment is the lowest without affecting the operation and maintenance mode

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  • Coal pulverizing system of thermal power plant and capacity expansion method thereof
  • Coal pulverizing system of thermal power plant and capacity expansion method thereof

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Embodiment Construction

[0034] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but only to illustrate the essence of the technical solutions of the present invention.

[0035] Explanation of terms:

[0036] Pulverizing system: In a thermal power plant, the raw coal is ground to meet the requirements of combustion fineness through a coal hopper, a coal feeder and a coal mill. The main equipment includes a coal hopper, a coal feeder and a coal mill.

[0037] Boiler design coal consumption: the coal consumption of the boiler per unit time. The combustion system design calculation is usually based on the coal consumption of the boiler under the conditions of maximum continuous output and average ambient temperat...

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Abstract

The invention discloses a coal pulverizing system of a thermal power plant and a capacity expansion method of the coal pulverizing system. The coal pulverizing system of the thermal power plant comprises a plurality of coal buckets, a plurality of coal feeders and a plurality of coal grinding machines; one of the plurality of coal buckets comprises a coal inlet for receiving coal, and two coal outlets for supplying coal to two coal feeders, wherein the two coal feeders are used for respectively supplying coal to the two coal grinding machines. With the adoption of the system and method, the problem of capacity expansion of the coal pulverizing system caused by the increase of coal consumption after unit capacity expansion can be solved; in addition, investment is minimized on the premise that the operation and overhaul mode are not influenced.

Description

technical field [0001] The invention relates to the field of thermal power generation, in particular to an expanded pulverizing system of a thermal power plant. Background technique [0002] At present, my country is designing and building the first double-reheat ultra-supercritical thermal power generation project. This technology adopts a new configuration of double-reheat for the third-generation ultra-supercritical thermal power generation, which further improves the power generation efficiency. It can be called the third-generation plus technology. [0003] In view of the high coal consumption and low thermal efficiency of subcritical units that have been in operation for a long time in my country, combined with the concept of foreign topping turbines, the East China Research Institute has researched and developed the secondary reheat upgrade technology for subcritical thermal power units. The main technical points are: the double reheat upgrade update technology fully ...

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Application Information

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IPC IPC(8): F23K1/00
Inventor 曹沂沈维君陈立强刘敏冯琰磊申松林施刚夜刘鹤忠刘慧军邓文祥林磊
Owner CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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