煤制油粉煤仓泄压面积设计

Design of Pressure Relief Area of Pulverized Coal Bunker in Coal-to-Oil Enterprise

摘要: 使用20 L粉尘爆炸特性测试系统，对煤样进行了煤尘云最大爆炸压力和最大爆炸压力上升速率实验测试，结果表明测试煤尘云的最大爆炸压力为0.62 MPa，对应的煤尘云浓度为300 g/m3，最大爆炸压力上升速率为54.14 MPa/s，对应的煤尘云浓度为200 g/m3。依据测试结果对煤制油煤粉制备工艺及气化装置中的粉煤仓的泄爆面积进行了核算，并对泄爆装备及数量进行了选型和设计。成果可为煤制油粉煤仓安全运行提供技术支撑。

Abstract: Using the 20 L dust explosion characteristic test system, the maximum explosion pressure and the maximum explosion pressure rise rate of the coal dust cloud were tested. The results show that: the maximum explosion pressure is 0.62 MPa; the corresponding coal dust cloud concentration is 300 g/m3; the maximum explosion pressure increases rate is 54.14 MPa/s; and the corresponding coal dust cloud concentration is 200 g/m3. According to the test results, the venting area of the preparation process of pulverized coal and pulverized coal bunker in the gasifier were calculated. We have selected and designed the explosive equipment, and determined its quantity. The results can provide technical support for the safe operation of coal bunker in coal-to-oil enterprise.