Dry powder gasification furnace

A dry powder gasification and gasification chamber technology, applied in the field of coal gasification, can solve the problems of low carbon conversion rate and water vapor decomposition rate, poor coal type adaptability, and low gasification efficiency, so as to reduce the content of combustibles and reduce combustible The effect of high content of substances and high decomposition rate

Inactive Publication Date: 2012-09-19
BEIJING YINGDE QINGDA TECH
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Problems solved by technology

However, the problem in the above-mentioned traditional gasifier is that the clogging of the slag port is easy to occur when the coal type fluctuates
Moreover, the furnace body of the traditional gasifier is a refractory brick structure, which has poor adaptability to coal types and cannot gasify coal with a high ash melting point. The gas goes down and the ash goes down along the furnace wall. jam
In addition, traditional gasifiers have low gasification efficiency, low carbon conversion rate and low decomposition rate of water vapor

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientations or positional relationships indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description...

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Abstract

The invention discloses a dry powder gasification furnace which comprises a furnace body, a top nozzle and a side nozzle, wherein the furnace body is internally provided with a vaporizing chamber; the top nozzle is arranged at the top of the furnace body, and is used for injecting pulverized coal, oxygen, steam and fuel gas into the vaporizing chamber from the top of the vaporizing chamber; the top nozzle is internally provided with an ignition rod; and the side nozzle is arranged at the side of the furnace body, and is used for injecting pulverized coal, oxygen and steam into the vaporizing chamber from the side of the vaporizing chamber. According to the dry powder gasification furnace, the carbon conversion rate is higher than 99%, and the decomposition rate of water vapor is higher than 80%; therefore, the dry powder gasification furnace has remarkable gasification efficiency and can be widely applied to the field of the existing coal gasification technology.

Description

technical field [0001] The invention relates to coal gasification technology, in particular to a dry powder gasification furnace. Background technique [0002] There are two types of traditional gasifiers with multi-nozzle structure: one type is to set four counter-spray nozzles at the lower part of the straight pipe section of the gasifier, the gas goes up and the ash goes down; The upper part of the straight pipe section is provided with four spray nozzles. However, the above-mentioned problem in the traditional gasifier is that the clogging of the slag port is easy to occur when the coal type fluctuates. Moreover, the furnace body of the traditional gasifier is a refractory brick structure, which has poor adaptability to coal types and cannot gasify coal with a high ash melting point. The gas goes down and the ash goes down along the furnace wall. clogged. In addition, traditional gasifiers have low gasification efficiency, low carbon conversion rate and low water vapo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/50C10J3/76
Inventor 孙永才张建胜张滋生马宏波周怀祖
Owner BEIJING YINGDE QINGDA TECH
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