Method for controlling reaction temperature of powdered coal gasification furnace by using thermal load
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A technology of reaction temperature and gasification furnace, which is applied in the field of controlling the reaction temperature of pulverized coal gasification furnace, and can solve the problems of not being able to judge the furnace temperature of the gasification furnace accurately and in a timely manner
Inactive Publication Date: 2021-07-06
河南能源化工集团鹤壁煤化工有限公司
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However, the steam output is affected by many factors such as the temperature change of the boiler feed water and the chang
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[0024] Example 1:
[0025] according to Figure 1-3 As shown, a method of thermal load is used to control the temperature of the powder gasifier, the method comprising the steps of:
[0026] S1, using a powder vaporization furnace, heat the pulverized coal steaming furnace, until the fixed slag layer and the flow slag layer thickness on the water-cooled wall are dynamic equilibrium;
[0027] S2, the calculation of gasification furnace production, using corresponding instruments to measure the mass flow of gasification furnace vapor and gasification furnace water temperature, then subjected to the measured data into formula 1, to obtain gasification furnace steam heat value:
[0028] S3, calculate the heat of the gasifier sewage, use the corresponding instrument to measure the mass flow and temperature of the sewage of the vaporization furnace, and calculate the heat of the emission furnace sewage;
[0029] S4, calculate the E1309 calorie value, using the corresponding instrument to...
Example Embodiment
[0038] Example 2:
[0039] according to Figure 1-3 As shown, a method of thermal load is used to control the temperature of the powder gasifier, the method comprising the steps of:
[0040] S1, using a powder vaporization furnace, heat the pulverized coal steaming furnace, until the fixed slag layer and the flow slag layer thickness on the water-cooled wall are dynamic equilibrium;
[0041] S2, the calculation of gasification furnace production, using corresponding instruments to measure the mass flow of gasification furnace vapor and gasification furnace water temperature, then subjected to the measured data into formula 1, to obtain gasification furnace steam heat value:
[0042] S3, calculate the heat of the gasifier sewage, use the corresponding instrument to measure the mass flow and temperature of the sewage of the vaporization furnace, and calculate the heat of the emission furnace sewage;
[0043] S4, calculate the E1309 calorie value, using the corresponding instrument to...
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Abstract
The invention relates to the technical field of gasification furnaces, in particular to a method for controlling the reaction temperature of a powdered coal gasification furnace through thermal load. The method for controlling the reaction temperature of athe powdered coal gasification furnace by using a thermal load comprises the following steps: firstly using the powdered coal gasification furnace, then measuring various data, finally calculating the heat of steam generated by the gasification furnace, the heat of pollution discharge of the gasification furnace and an E1309 heat value in sequence according to a formula, and then calculating the thermal load of the gasification furnace. According to the method, the change of the boiler feed water temperature and the working condition of an oxygen preheater can be compensated, and the thermal load of the gasification furnace uses another two variables, so that the operation of the gasification furnace is facilitated, the operation state of the gasification furnace can be truly reflected, and even if the boiler feed water temperature fluctuates or the working condition of the oxygen preheater fluctuates, the operation can be guided according to the thermal load; and for a running factory, an operator needs to be used to control the reaction temperature of the gasification furnace according to the indication of the thermal load, so that the system can be ensured to run more safely and stably.
Description
technical field [0001] The invention relates to a method for controlling the reaction temperature of a pulverized coal gasification furnace, in particular to a method for controlling the reaction temperature of a pulverized coal gasification furnace with heat load, and belongs to the technical field of gasification furnaces. Background technique [0002] The pulverized coal gasification process is carried out at a high temperature of 1600°C and a pressure of 41 bar. The pulverized coal, oxygen and a small amount of steam flow into the gasifier under pressure, and the temperature rise and volatile matter removal are completed in a very short time. A series of physical and chemical processes such as removal, cracking, combustion and transformation. Due to the high temperature in the gasifier, in the presence of oxygen, carbon, volatile matter and some reaction products (H2, CO, etc.) mainly undergo combustion reactions; various transformations of carbon occur after the oxygen ...
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