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Fluidized bed gasifier and building method thereof

A fluidized bed gasifier and furnace body structure technology, which is applied in the field of coal gasification, can solve the problems of weak friction resistance, falling off and cracking, and alkali corrosion resistance of refractory lining, and achieves good integrity and sealing performance, which is convenient and convenient. The effect of pouring, good friction resistance and penetration resistance

Active Publication Date: 2017-06-09
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a fluidized bed gasification furnace and its construction method, to solve the problems of existing fluidized bed gasification furnaces, such as refractory inner lining, alkali corrosion resistance, weak friction resistance, etc., while simplifying the construction difficulty. Problems such as falling off and cracking

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  • Fluidized bed gasifier and building method thereof
  • Fluidized bed gasifier and building method thereof
  • Fluidized bed gasifier and building method thereof

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Embodiment 1

[0022] see figure 1 , the embodiment of the present invention provides a fluidized bed gasifier, including a furnace body structure and a furnace chamber located in the furnace body structure, the furnace chamber includes a gas chamber zone I, a dense phase bed material zone III and a dilute phase zone IV The furnace body structure includes a pressure-resistant shell 1 and a refractory lining 2, the material used in the refractory lining 2 contains alkali-resistant materials, and the refractory lining includes a first lining part 21 and a second lining part 22 , the first lining portion 21 and the second lining portion 22 are distributed along the direction of the furnace chamber from low to high; the part of the refractory lining 2 corresponding to the gas chamber area I is defined as the first lining portion 21, and the inner lining of the refractory material The part of the lining corresponding to the dense-phase bed material zone III and the dilute-phase zone IV is defined...

Embodiment 2

[0071] see figure 1 , the embodiment of the present invention also provides a construction method of a fluidized bed gasifier; specifically including the following steps:

[0072] The first step is to provide a pressure-resistant casing 1; the third refractory pouring layer 21B is made on the inner wall of the pressure-resistant casing 1 corresponding to the gas chamber area 1 by pouring method, and the third refractory pouring layer 21B faces the furnace by pouring method. The second refractory casting layer 21A is made in the cavity, so that the second refractory casting layer 21A and the third refractory casting layer 21B constitute the first inner lining part 21;

[0073] In the second step, the second inner lining part 22 is made by a segmented method; wherein, each section of making the second inner lining part 22 includes:

[0074] The refractory brick masonry method is used to make the masonry sub-layer of the refractory brick masonry layer 22A in the part correspondi...

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Abstract

The invention discloses a fluidized bed gasifier and a building method thereof and relates to the technical field of catalytic coal gasification and aims to lower construction difficulty and solve the problems that the refractory lining of an existing catalytic gasification fluidized bed gasifier is weak in alkaline corrosion resistance and friction resistance, and the refractory lining falls off easily. The fluidized bed gasifier comprises a gasifier body structure and a gasifier chamber, wherein the gasifier chamber comprises a gas chamber area, a dense-phase bed material area and a dilute-phase area, the gasifier body structure comprises a pressure-resistant shell and the refractory lining, and the refractory lining contains alkali-resistant materials and comprises a first lining part and a second lining part; the second lining part comprises a first refractory pouring layer contacting with the dense-phase bed material area and the dilute-phase area and a refractory brick masonry layer contacting with the inner wall of the pressure-resistant shell, and the first refractory pouring layer is located between the inner wall of the pressure-resistant shell and the refractory brick masonry layer. The fluidized bed gasifier has the advantages that the first lining part and the second lining part are manufactured in a sectioned manner, and the fluidized bed gasifier is applicable to the catalytic coal gasification technology.

Description

technical field [0001] The invention relates to the technical field of coal gasification, in particular to a fluidized bed gasification furnace and a construction method thereof. Background technique [0002] Fluidized bed gasifier is a device for catalytic gasification of coal by using fluidized bed technology. It includes a furnace body structure and a furnace cavity located in the furnace body structure. The furnace body structure includes a metal shell and refractory lining. [0003] Generally speaking, the refractory lining is poured in the inside of the pressure shell by integral pouring of unshaped refractory materials, which not only makes the construction of the refractory lining more convenient, but also makes the poured refractory lining more integrated . However, since the refractory inner lining of the furnace structure is constructed by casting in an unshaped form, its wear resistance and alkali corrosion resistance are poor, so that when the coal catalytic g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/56C10J3/48
CPCC10J3/48C10J3/56C10J2200/00C10J2300/0986C10J2300/093
Inventor 毛燕东李克忠刘雷
Owner ENN SCI & TECH DEV
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