CN2583593Y - 差速补偿罩 - Google Patents

差速补偿罩 Download PDF

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CN2583593Y
CN2583593Y CN 02231975 CN02231975U CN2583593Y CN 2583593 Y CN2583593 Y CN 2583593Y CN 02231975 CN02231975 CN 02231975 CN 02231975 U CN02231975 U CN 02231975U CN 2583593 Y CN2583593 Y CN 2583593Y
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郑岩
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Wuxi Dogfang Environmental Engineering Design Institute Co ltd
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Wuxi Dogfang Environmental Engineering Design Institute Co ltd
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Abstract

差速补偿罩,属于烟气治理装置。本实用新型的差速补偿罩是由内罩、外罩两层罩组成,罩顶为伞形,下伸部分为内、外两层罩。内罩捕集中心烟柱烟气,外罩捕集四周游散烟气,本实用新型利用烟气的上升热动力,将不同流速的烟气分别吸入内、外罩内,有效地改善了冶金生产的工作环境。

Description

差速补偿罩
本实用新型涉及炼钢设备生产性烟尘的治理装置,属除尘技术领域。
目前国内治理炼钢电炉等高温烟尘所采用的屋顶罩烟气捕集形式,虽然大量增加处理风量,有一定的捕集效果,但实践中明显存在问题。主要是屋顶罩结构不合理,且容量小,使罩内阻力不均等,影响捕集效果,即使加大处理风量和加大罩口,仍有一部分干扰烟气不能进入烟罩或一部分烟气进了烟罩还会往四周翻溢出来,达不到治理要求。
本实用新型的目的是设计一种差速补偿罩,结构独特,有利于完全捕集烟气,最大烟气捕集率可大于98%。彻底克服屋顶罩的处理风量大,捕集率低,能耗高等弊端。
本实用新型的目的是这样实现的:差速补偿罩的罩顶为伞形,罩顶下部是由外罩和内罩组成的双层罩,外罩形状象房屋一样的纵深罩,内罩形状与外罩一样,小于外罩与外罩配套组合。整个罩子固定在烟气污染源上方的厂房顶部。同时根据高温烟气的热抬升力的气流特性设计恰当的混风比,使烟气上升到内罩口和和外罩口的平均流速不同,这样可以使内罩捕集中心烟柱烟气量90%,外罩捕集分散干扰的烟气量10%,达到完全捕集烟气的目的;对于吹氧、扒渣、加料等工艺操作产生的突发的过大烟气发生量,在罩内容易反冲外溢的情况,采取合理设计罩子容积,使罩子不仅能捕集烟气,而且具有蓄烟的功能,以保证罩子在烟气脉冲峰值持续时间内的过剩烟气量不会反冲外逸,最终达到全部捕集烟气。
差速补偿罩是屋顶罩或高伞形罩的改进与发展,它改变了捕集罩的烟气速度,扩大了容积储烟,大大提高烟气的捕集率(≥98%)。
当捕集效果相同的情况下,大幅降低系统处理风量;
当处理风量相同的情况下,捕集效率大大提高了。
附图中所示数字意义如下:
(1)出风管;(2)外罩;(3)内罩;(4)连接板。
附图说明:差速补偿罩结构三视图。
图1:正视图         图2:侧视图          图3:俯视图

Claims (3)

1、一种差速补偿罩是由内罩和外罩组成,其特性是罩顶为伞形,下伸部分为内、外两层罩。
2、根据权利要求1所述差速补偿罩,其特征是:内、外罩组合而成的双层罩。
3、根据权利要求1所述差速补偿罩,其特征是:外罩形似于房屋的纵深罩,是高深度伞形罩,屋顶罩。
CN 02231975 2002-04-23 2002-04-23 差速补偿罩 Expired - Lifetime CN2583593Y (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102886184A (zh) * 2012-08-29 2013-01-23 中北大学 焊接烟尘净化工艺及装置
CN104511470A (zh) * 2013-09-30 2015-04-15 宁夏嘉翔自控技术有限公司 一种带吸附板的高温烟气的吸尘罩

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102886184A (zh) * 2012-08-29 2013-01-23 中北大学 焊接烟尘净化工艺及装置
CN102886184B (zh) * 2012-08-29 2014-04-30 中北大学 焊接烟尘净化装置
CN104511470A (zh) * 2013-09-30 2015-04-15 宁夏嘉翔自控技术有限公司 一种带吸附板的高温烟气的吸尘罩

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