Multi-section water-cooling wall high-efficiency chilling gasification device
A technology of gasification device and water wall, which is applied in the details of gasification device, gasification process, granular/powdered fuel gasification, etc. It can solve the problem of unmaintainable liquid level in the quenching chamber, high ash content of syngas, and drop Tube burnout etc.
Inactive Publication Date: 2015-04-29
水煤浆气化及煤化工国家工程研究中心
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Problems solved by technology
[0007] In order to overcome the limited maintenance space of the water-cooled wall in the existing gasification device, the syngas exits the quenching chamber with water, the ash content of the syngas is high, the water / gas of the syngas is unqualified, and the liquid level inside the quenching chamber cannot be maintained and drops Tube burnout and other problems, the present invention provides a multi-section water-cooled wall high-efficiency chilling gasification device
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[0039] A thousand-ton gasification device, with four nozzles 1 on the top, a central nozzle in the center of the flange, and the remaining three nozzles 1 are evenly arranged on a circle centered on the center of the flange. The rotation of the internal airflow of the three nozzles 1 The directions are different, and the overall direction gathers toward the axis of the gasifier; the water wall 4 adopts a two-stage structure, the temperature of the deoxygenated water entering the water wall 4 is 200°C, and the temperature of the deoxygenated water exiting the water wall 4 is 240°C; gasification A high-efficiency chilling device with a height of about 8690mm and an inner diameter of about 3000mm is installed in the lower part of chamber 2, and the chilling space is about 61.4m3. The temperature of the syngas and ash entering the high-efficiency chilling device 3 is about 1500°C, the velocity is about 3.6m / s, and the gas velocity in the annular space is about 0.3m / s. Out of the w...
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The invention relates to a multi-section water-cooling wall high-efficiency chilling gasification device. The multi-section water-cooling wall high-efficiency chilling gasification device comprises spray nozzles, a gasification chamber and a high-efficiency chilling device, wherein the gasification chamber is arranged on the upper part of the high-efficiency chilling device, and one or more spray nozzles are installed on a top flange of the gasification chamber; the gasification chamber is formed by one or more sections of water cooling walls, each water cooling wall is in a tabulation form or a tube winding form, a water outlet of each section of water cooling wall is arranged above the same section of water cooling wall, and the exterior of the water cooling wall is connected with a water supply device. The diameter of the gasification chamber is equivalent to that of the high-efficiency chilling device; each water cooling wall is connected with a slag opening of the gasification chamber in a plugging manner; a slag opening section is not provided with a water cooling wall; each spray nozzle is in a combined nozzle structure. A space is reserved for installing and overhauling the water cooling wall of a gasification furnace, the convenience is provided for examining the leakage and replacing each water cooling wall, and the real production requirement can be met.
Description
technical field [0001] The invention belongs to the technical field of new energy, and relates to a high-efficiency quenching gasification device with multi-section water walls. Background technique [0002] Since the worldwide oil crisis in the mid-1970s, the research, development and application of clean coal technology have become the strategic research focus of governments' sustainable development strategies and energy security. Coal gasification technology is an important way and means of clean utilization of coal resources. Coal gasification is a technology in which coal is converted into synthesis gas and fuel gas through incomplete combustion. In the gasifier, coal is converted into syngas and fuel gas by the action of water, steam or CO. Minerals (ash) contained in coal are converted into ash, sulfur is converted into hydrogen sulfide, sulfur is removed by purification or further converted into sulfuric acid, nitrogen (including chlorine) is converted into NOx, NH...
Claims
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IPC IPC(8): C10J3/48C10J3/50C10J3/84
CPCC10J3/485C10J3/506C10J3/76C10J3/84C10J2200/152C10J2300/1603C10J2300/1615
Inventor 李磊郭宝贵路文学张彦吴永国傅进军赵梅梅李彩艳
Owner 水煤浆气化及煤化工国家工程研究中心
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