﻿ 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

Mine Engineering
Vol.05 No.03(2017), Article ID:21188,5 pages
10.12677/ME.2017.53007

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

Min Yao, Zhongshan Guo, Hongnian Yuan

Shenhua Ningxia Coal Industry Group Co., Ltd., Yinchuan Ningxia

Received: Jun. 9th, 2017; accepted: Jun. 26th, 2017; published: Jun. 29th, 2017

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.

Keywords:Pulverized Coal Bunker, Coal Dust Cloud, Venting Area

1. 引言

2. 煤尘云最大爆炸压力及最大爆炸压力上升速率测试

3. 粉煤仓泄爆面积核算

3.1. 备煤系统粉煤仓泄爆面积

Figure 1. 20 L dust explosion characteristics test system

(1)

(2)

3.2. 气化装置粉煤仓泄爆面积

4. 泄爆设计

Figure 2. Rupture disk

Figure 3. Gravity explosion-proof door

5. 结论

(1) 测试煤样的煤尘云最大爆炸压力为0.62 MPa，其对应的煤尘云浓度为300 g/m3；煤尘云最大爆炸压力上升速率为54.14 MPa/s，其对应的煤尘云浓度为200 g/m3

(2) 通过计算，备煤系统粉煤仓的泄爆面积为0.635 m2，气化装置粉煤仓泄爆面积为0.86 m2

(3) 根据实际应用效果并考虑经济因素，将粉煤仓选择泄爆面积为0.393 m2的重力式防爆门作为泄爆装备；考虑到安全效果，备煤系统粉煤仓的安装数量为3个，气化装置粉煤仓的安装数量为4个。

Design of Pressure Relief Area of Pulverized Coal Bunker in Coal-to-Oil Enterprise[J]. 矿山工程, 2017, 05(03): 50-54. http://dx.doi.org/10.12677/ME.2017.53007

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