Composite furnace liner and entrained flow bed vaporizing furnace
A technology of gasifier and entrained bed, which is applied in the field of coal chemical industry, can solve the problems of difficult control of oxygen and carbon, faults, large temperature fluctuations, etc., and achieve the effects of improving carbon conversion rate, prolonging reaction time, and stabilizing dynamic process
Active Publication Date: 2015-07-29
CHNA ENERGY INVESTMENT CORP LTD +1
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Problems solved by technology
However, the actual working conditions are that the oxygen-carbon ratio is not easy to control, and the temperature in the furnace may fluctuate greatly. Therefore, the water-cooled wall layer structure in the prior art often suffers serious failures due to the inability to resist the fluctuation in the furnace temperature.
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[0034] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0035] refer to figure 1 , The invention provides a composite furnace lining. The composite furnace lining includes a water-cooled wall layer 3 located at the outermost layer. When the composite furnace lining is installed in the gasifier, the water-cooled wall layer 3 is arranged close to the furnace inner wall of the gasifier, thereby forming a protective layer for the furnace inner wall. According to an embodiment of the present invention, an intermediate layer 4 is laid on the inner wall of the water cooling wall layer 3 to protect the water cooling wall layer 3 and perform heat exchange between the water cooling wall layer 3 and the molten slag. Accordin...
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The invention discloses a composite furnace liner. The composite furnace liner comprises a water screen layer (3) and an intermediate layer (4) laid on the inner wall surface of the water screen layer, a fire facing layer (10) is laid on the inner wall surface of the intermediate layer, and the highest use temperature of the material of the fire facing layer is higher than that of the material of the intermediate layer. The invention also discloses an entrained flow bed vaporizing furnace. The furnace comprises a furnace body (1) and a furnace cavity formed by the furnace body (1), the upper portion of the furnace cavity forms a vaporizing chamber (2), and the position of the inner sidewall of the furnace body corresponding to the vaporizing chamber is provided with the composite furnace liner. The composite furnace liner can realize easy adhesion of high temperature flow state slag formed through a vaporizing reaction to the fire facing layer and smooth flow of the slag on the fire facing layer. A Resistance To Slag By Using Slag dynamic process is stable, so the intermediate layer and the water screen layer can be effectively protected by a high temperature resistant protection layer formed by the fire facing layer and the slag.
Description
technical field [0001] The invention relates to the field of coal chemical industry, in particular to a composite furnace lining and an entrained-flow gasifier. Background technique [0002] Coal gasification technology is the basis for the development of coal-based chemicals, liquid fuels, IGCC power generation, hydrogen production and other processes, and is a leading technology in the coal chemical industry. Due to the rapid development of industries such as synthetic ammonia, methanol, dimethyl ether, coal-to-oil, and coal-to-olefins, China's coal gasification process is rapidly transitioning from the old-fashioned UGI furnace lump coal intermittent gasification to the advanced pulverized coal gasification process. There is a strong demand for various types of pulverized coal gasification technology and equipment. Compared with fixed bed and fluidized bed coal gasification technology, entrained bed coal gasification technology has large production capacity, high carbon ...
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IPC IPC(8): C10J3/48
CPCY02E20/18
Inventor 彭宝仔郭治李志远张颖卢洪
Owner CHNA ENERGY INVESTMENT CORP LTD