Pure-burning biomass environment-friendly circulating fluidized bed high-temperature and high-pressure steam boiler

A circulating fluidized bed, high temperature and high pressure technology, used in steam boilers, steam generation, lighting and heating equipment, etc., can solve the problems of narrow fuel range, high pollution emissions, low combustion efficiency, etc., to achieve a large combustion share, prevent smoke The effect of gas back channeling and raising the height of the furnace
CN110793013APending Publication Date: 2020-02-14哈尔滨红光锅炉总厂有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
哈尔滨红光锅炉总厂有限责任公司
Publication Date
2020-02-14

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Abstract

The invention discloses a pure-burning biomass environment-friendly circulating fluidized bed high-temperature and high-pressure steam boiler, and relates to a circulating fluidized bed boiler. The boiler solves the problems of low in combustion efficiency, high in pollution emission, narrow in fuel range, difficulty in pure combustion, unsmooth feeding, poor sealing and poor reliability of an existing biomass circulating fluidized bed boiler. A feeding interface is positioned at a negative pressure point at the lower part of a hearth; the upper part of the hearth is sequentially provided witha water cooling screen, a middle temperature screen superheater and a high temperature screen superheater from the width direction; a first inlet flue communicates one end of a second inlet flue; thefirst inlet flue and the second inlet flue are all inclined downwards; an inclination angle of the first inlet flue is smaller than that of the second inlet flue; the other end of the second inlet flue communicates with the side wall of the upper end of a separator; the lower end of a steering chamber communicates with the upper end of the separator; a central cylinder is connected with the lowerend of the steering chamber; and the central cylinder is positioned in the separator. The boiler is used for cogeneration and power generation of a pure-burning biomass circulating fluidized bed boiler.
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Description

technical field

[0001] The invention relates to a biomass circulating fluidized bed boiler, in particular to an environment-friendly circulating fluidized bed high temperature and high pressure steam boiler purely burning biomass. Background technique

[0002] According to the requirements of the "Guiding Opinions on Promoting the Development of Biomass Energy Heating" issued by the state, as well as the implementation of coal restrictions and bans in some areas of our country, the development of biomass circulating fluidized bed boilers has been accelerated, which needs to achieve clean combustion and low consumption. Pollution discharge and load stability and safe operation. Open-air burning and storage of agricultural and forestry biomass can cause damage to the environment such as smog and fire; improper disposal of animal husbandry waste can cause pollution to natural resources.

[0003] With the increasing strictness and improvement of environmental protection and ene...

Claims

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