半钢轮胎硫化生产线废气扩散规律分析和高效集气系统设计

闫紫梦; 党小庆; 郑华春; 吉硕; 屈嘉鑫; 韩巍; 王磊峰; 张春慧

doi:10.13205/j.hjgc.202604018

半钢轮胎硫化生产线废气扩散规律分析和高效集气系统设计

doi: 10.13205/j.hjgc.202604018

1. 西安建筑科技大学环境与市政工程学院陕西省环境工程重点实验室, 西安 710055;
2. 陕西延长石油集团橡胶有限公司, 陕西咸阳 712000;
3. 陕西省西咸新区生态环境局, 陕西咸阳 712000

基金项目:

国机重装重大科技研发项目（2023ZLKY-13）；陕西省重点研发计划项目（2024SF-ZDCYL-05-06）

详细信息

作者简介:
闫紫梦(2001—),女,硕士研究生,主要研究方向为大气污染控制技术及设备。yanzimeng0211@163.com

通讯作者:
党小庆(1964—),男,博士,教授,主要研究方向为大气污染控制技术及设备。dangxq@163.com

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出版历程
- 收稿日期: 2025-03-14
- 网络出版日期: 2026-06-06
- 刊出日期: 2026-04-01

Analysis of exhaust gas dispersion patterns and design of high-efficiency gas collection systems in semi-steel tire vulcanization production lines

1. Shaanxi Key Laboratory of Environmental Engineering, Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. Shaanxi Yanchang Petroleum Group Rubber Co., Ltd., Xianyang 712000, China;
3. Ecological Environment Bureau of Xixian New District, Shaanxi Province, Xianyang 712000, China

摘要

摘要: 针对半钢硫化生产线风量大、废气无组织排放问题，采用实验测试与数值模拟相结合的方法，研究了含VOCs废气的扩散特性及系统风量，对半密闭罩结构进行优化，并通过调节管径达到收集系统负压平衡，以实现废气的高效收集。结果表明：由数值模拟得到的甲苯浓度分布与实验测试结果基本一致；现有硫化生产线各集气罩罩口风速为0.04~0.2 m/s，风速不均。静风条件下密闭罩与半密闭罩内甲苯扩散特征相似，密闭罩内甲苯浓度为248 mg/m³，半密闭罩内为115 mg/m³，地沟出现甲苯废气沉积。通过优化半密闭罩结构，设计风量为1.0×10⁵ m³/h时，罩口平均风速为0.35 m/s，各集气罩罩口风速分布不均；在支路上增设渐缩管并调节管径，优化后支路一总风量偏差为-0.44%；支路二为0.38%；各集气罩罩口风量偏差均小于10%，废气收集系统达到负压平衡，可实现废气的有效收集，改善车间劳动卫生条件。该研究结果可为半钢硫化生产线废气有效收集提供参考。
- 硫化生产线 /
- 废气收集系统 /
- 扩散规律 /
- 风量平衡 /
- 数值模拟
Abstract: To address the issues of high air volume and unorganized emissions of waste gas in the semi-steel vulcanization production lines， a combined approach of experimental testing and numerical simulation was employed to study the diffusion characteristics of VOCs-containing waste gas and air volume of the system. The structure of the semi-enclosed hood was optimized， and the pipe diameter was adjusted to achieve negative pressure balance in the collection system， thereby enabling efficient waste gas collection. The results showed that the toluene concentration distribution obtained from numerical simulation was largely consistent with the experimental test results. The hood inlet wind speeds at various collection hoods on the existing vulcanization production line ranged from 0.04 m/s to 0.2 m/s， indicating uneven wind speed distribution. Under calm wind condition， the toluene diffusion characteristics inside the enclosed hood and the semi-enclosed hood were similar， with toluene concentrations of 248 mg/m³ in the enclosed hood， and 115 mg/m³ in the semi-enclosed hood， and toluene waste gas deposition was observed in the trench. By optimizing the structure of the semi-enclosed hood， with a designed air volume of 1.0×10⁵ m³/h， the average hood inlet wind speed was 0.35 m/s， but the wind speed distribution at the hood inlets remained uneven. Gradual diameter reduction pipes were added to the branches， and the pipe diameters were adjusted. After optimization， the total air volume deviation for branch Ⅰ was -0.44%， and for branch Ⅱ， it was 0.38%. The air volume deviation at each hood inlet was less than 10%， achieving negative pressure balance in the waste gas collection system， which allows for effective waste gas collection and improves the labor hygiene conditions in the workshop. This study can provide industrial parameter references for effective collection of waste gas in semi-steel vulcanization production lines.
- vulcanization production line /
- exhaust gas collection system /
- diffusion law /
- airflow balance /
- numerical simulation

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