CN111457393A - 一种危废物废热预热节能器 - Google Patents
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Abstract
本发明属于化工过程产生的固体颗粒状危废物(颗粒内包裹VOC成分)的焚烧前处理预热装置,涉及一种新型危废物废热预热节能器,包括多波内螺旋肋片管、点阵拓扑复合层耦合加热壁、多孔多向倾斜筛板;多波内螺旋肋片管和点阵拓扑复合层耦合加热壁共同构成废热节能器外壳,由外壳围成横截面呈矩形的装置内密布多孔多向倾斜筛板。本发明采用烟气废热作为热源,结构清晰,既促进烟气废热的高效利用,节约能源,又使结构重量减轻,并且借助装置内部多孔多向倾斜筛板,有效提高均热性,消除局部过热或过烧现象,有效拓展接触面,并大幅延长危废物在装置中的滞留时间,显著降低危废物中的含湿量,提升焚烧初始温度,稳定后续炉内燃烧温度,大幅度降低二次污染的危险性。
Description
技术领域
本发明涉及一种新型危废物废热预热节能器。
背景技术
化工过程中会产生颗粒状固体危废物,通常采用高温无害化焚烧处理。而高温处理过程中,常因危废物具有一定的含湿量,且温度不均导致焚烧温度低于设定温度,总体燃烧效率低,致使焚烧过程中产生的大量二噁英气体不能燃尽,对环境造成二次污染。因此,在危废物进入焚烧炉前会设置预热装置。目前的预热装置对于废热能利用不够充分,换热效率低,设备笨重,保温性能弱,热量散失严重,存在局部过热或过烧现象,并且由于颗粒状固体危废物中常伴有VOC物质存在,因此不能剧烈掺混或搅拌,致使预热过程中危废物仍然不能有效降低含湿量,均温性亦不能保证,并对后续焚烧过程造成负面影响。
发明内容
本发明针对上述问题,提出了一种新型危废物废热预热节能器,该装置能够高效利用烟气废气能,提高换热效率,有效减低危废物中含湿量,并增强均温性,消除局部过热或过烧现象,同时保温性提升,热量散失大幅降低,提升焚烧初温,从而促进后续焚烧炉内危废物的燃烧稳定,整体燃烧效率提高,并且设备重量显著减轻,节约材料成本。
新型危废物废热预热节能器,由外壳和多孔多向倾斜筛板组成;所述外壳的横截面呈矩形,内布多孔多向倾斜筛板;所述外壳的轴线与水平地面存在夹角α,所述夹角α的范围是35°~90°;危废物从所述外壳顶部进入,受自身重力作用,从所述外壳底部流出;废热烟气通过外接管道与所述外壳中各多波内螺旋肋片管联接,从而作为装置热源,向装置内高效传递热量。
所述外壳由多波内螺旋肋片管和点阵拓扑复合层耦合辐射壁构成,形成矩形筒体状,有四个侧壁;每个侧壁由若干多波内螺旋肋片管和点阵拓扑复合层耦合辐射壁相互交替固接;相邻侧壁内的多波内螺旋肋片管的轴线相互空间垂直,并且相邻侧壁中必有一个侧壁内的所有多波内螺旋肋片管的轴线与所述外壳的轴线相互平行。
进一步地,所述多波内螺旋肋片管由内螺旋肋片插入外管固接而成;内螺旋肋片由平整薄金属片冲压成连续“几”字形,而后绕管轴线卷制而成;冲压线与轴线形成的夹角为θ,夹角θ的范围是0˚~45 ˚之间。
所述点阵拓扑复合层耦合辐射壁由基板、辐射板、点阵块组成;点阵块呈矩阵形阵列固接于基板之间。所述点阵拓扑复合层耦合辐射壁由装置外侧到内侧排列顺序为基板、辐射板、固接的大量点阵块形成的空间层和基板。
进一步地,所述点阵块由杆状金属焊接而成,呈空间六面体状,并且八个顶点都与体心点连接,每个点阵块有20条棱。
所述多孔多向倾斜筛板由金属丝条矩形网板和槽钢构成;金属丝条矩形网板由金属丝条编制成矩形板状,形成的筛孔不小于4目;金属丝条矩形网板两侧固接于槽钢上;槽钢固接于外壳;多孔多向倾斜筛板的倾斜线与外壳的轴线夹角为γ,夹角γ的范围是0˚~60˚之间;多孔多向倾斜筛板呈交错式矩阵形布置。
本发明结构清晰,制造方便,多波内螺旋管结构,既强化烟气废热的利用,同时具有对烟尘颗粒的自清洁性,实现将高温烟气热量高效热传导至装置内部;点阵拓扑复合层耦合辐射壁,既充分利用复合层结构实现辐射传热的加热和保温作用,又利用点阵拓扑结构保证装置力学性能的同时,大幅度降低重量,节约材料;装置内部呈交错式矩阵形密布多孔多向倾斜筛板,促使危废物在输运过程中,有效拓展接触面,并大幅延长在装置中的滞留时间,既有效提高均热性,又提升后续焚烧初始温度,维持炉内燃烧温度,大幅度降低二次污染的危险性。
附图说明
图1为本发明的立体结构示意图
图2为本发明的外壳局部示意图
图3为本发明的多波内螺旋肋片管结构示意图
图4为本发明的内螺旋肋片成型示意图
图5为本发明的点阵拓扑复合层耦合辐射壁结构示意图
图6为本发明的点阵块结构示意图
图7为本发明的平面布置示意图
图8为本发明的多孔多向倾斜筛板结构示意图
图9为本发明的点阵块平面布置示意图
图中:(1)外壳,(1-1)多波内螺旋肋片管,(1-2)点阵拓扑复合层耦合辐射壁,(1-3)多波内螺旋肋片管的轴线,(1-2-1)基板,(1-2-2)辐射板,(1-2-3)点阵块,(2)多孔多向倾斜筛板,(2-1)金属丝条矩形网板,(2-2)槽钢,(2-3)筛孔,(2-4)多孔多向倾斜筛板的倾斜线,(2-5)多孔多向倾斜筛板的倾斜线与装置的轴线的夹角,(3)外壳的轴线,(4)外壳的轴线与水平地面夹角。
具体实施方式
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
本发明提供了一种危废物废热预热节能器的实施例,具体参见图1、图2、图3、图4、图5、图6、图7、图8和图9,本实施例的危废物废热预热节能器,由外壳和多孔多向倾斜筛板组成;所述外壳的横截面呈矩形,内布多孔多向倾斜筛板;所述外壳的轴线与水平地面存在夹角α,所述夹角α的范围是35°~90°;危废物从所述外壳顶部进入,在装置内充分热交换,提升危废物温度,大幅减低含湿量,并受自身重力作用,经过内部多孔多向倾斜筛板后,从所述外壳底部流出;废热烟气通过外接管道与所述外壳中各多波内螺旋肋片管联接,从而作为装置热源,向装置内高效传递热量。所述外壳由多波内螺旋肋片管和点阵拓扑复合层耦合辐射壁构成,形成矩形筒体状,有四个侧壁;每个侧壁由若干多波内螺旋肋片管和点阵拓扑复合层耦合辐射壁相互交替固接;相邻侧壁内的多波内螺旋肋片管的轴线相互空间垂直,并且相邻侧壁中必有一个侧壁内的所有多波内螺旋肋片管的轴线与所述外壳的轴线相互平行,便于装置布置管线。所述多波内螺旋肋片管由内螺旋肋片插入外管钎焊而成;内螺旋肋片由平整薄金属片冲压成连续“几”字形,而后绕多波内螺旋肋片管的轴线多次变温卷制而成;冲压线与轴线形成的夹角为θ,夹角θ的范围是0˚~45 ˚之间。所述点阵拓扑复合层耦合辐射壁由基板、辐射板、点阵块组成;点阵块呈矩阵形阵列固接于基板之间。所述点阵拓扑复合层耦合辐射壁由装置外侧到内侧排列顺序为基板、辐射板、固接的大量点阵块形成的空间层和基板。所述点阵块由杆状金属焊接而成,呈空间六面体状,并且八个顶点都与体心点连接,每个点阵块有20条棱。多孔多向倾斜筛板由金属丝条矩形网板和槽钢构成;金属丝条矩形网板由金属丝条编制而成,形成的筛孔不小于4目;金属丝条矩形网板两侧固接于槽钢上;槽钢固接于外壳;多孔多向倾斜筛板的倾斜线与外壳的轴线夹角为γ,夹角γ的范围是0˚~60 ˚之间;多孔多向倾斜筛板呈交错式矩阵形布置。危废物从外壳顶部进入装置内,从多孔多向倾斜筛板的筛孔中和间隙中逐层通过,起到有效拓展接触面,并大幅延长在装置中的滞留时间,有效提高均热性。
以上所述仅为本发明的一项优选实施例,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所做的任何修改,等效果替换,改进等,均应包含在本发明的保护范围之内。
Claims (6)
1.一种危废物废热预热节能器,其特征在于:它由外壳(1)和多孔多向倾斜筛板(2)组成;所述外壳(1)的横截面呈矩形,内布多孔多向倾斜筛板(2);所述外壳(1)的轴线(3)与水平地面存在夹角α(4),所述夹角α(4)的范围是35°~90°;危废物从所述外壳(1)顶部进入,受自身重力作用,从所述外壳(1)底部流出;废热烟气通过外接管道与所述外壳(1)中各多波内螺旋肋片管(1-1)联接。
2.根据权利要求1所述的危废物废热预热节能器,其特征在于:所述外壳(1)由多波内螺旋肋片管(1-1)和点阵拓扑复合层耦合辐射壁(1-2)构成,形成矩形筒体状,有四个侧壁;每个侧壁由若干多波内螺旋肋片管(1-1)和点阵拓扑复合层耦合辐射壁(1-2)相互交替固接;相邻侧壁内的多波内螺旋肋片管(1-1)的轴线(1-3)相互空间垂直,并且相邻侧壁中必有一个侧壁内的所有多波内螺旋肋片管(1-1)的轴线(1-3)与所述外壳(1)的轴线(3)相互平行。
3.根据权利要求2所述的危废物废热预热节能器,其特征在于:所述多波内螺旋肋片管(1-1)由内螺旋肋片(1-1-1)插入外管(1-1-2)固接而成;内螺旋肋片(1-1-1)由平整薄金属片冲压成连续“几”字形,而后绕管轴线(1-3)卷制而成;冲压线(1-1-3)与管轴线(1-3)形成的夹角为θ(1-1-4),夹角θ(1-1-4)的范围是0˚~45 ˚之间。
4.根据权利要求2所述的危废物废热预热节能器,其特征在于:所述点阵拓扑复合层耦合辐射壁(1-2)由基板(1-2-1)、辐射板(1-2-2)、点阵块(1-2-3)组成;点阵块(1-2-3)呈矩阵形阵列固接于基板(1-2-1)之间;所述点阵拓扑复合层耦合辐射壁(1-2)由装置外侧到内侧排列顺序为基板(1-2-1)、辐射板(1-2-2)、固接的大量点阵块(1-2-3)形成的空间层和基板(1-2-1)。
5.根据权利要求4所述的危废物废热预热节能器,其特征在于:所述点阵块(1-2-3)由杆状金属焊接而成,呈空间六面体状,并且八个顶点都与体心点连接;每个点阵块(1-2-3)有20条棱。
6.根据权利要求1所述的危废物废热预热节能器,其特征在于:所述多孔多向倾斜筛板(2)由金属丝条矩形网板(2-1)和槽钢(2-2)构成;金属丝条矩形网板(2-1)由金属丝条编制成矩形板状,形成的筛孔(2-3)不小于4目;金属丝条矩形网板(2-1)两侧固接于槽钢(2-2)上;槽钢(2-2)固接于外壳(1);多孔多向倾斜筛板(2)的倾斜线(2-4)与装置的轴线(3)的夹角为γ(2-5),夹角γ(2-5)的范围是0˚~60 ˚之间;多孔多向倾斜筛板(2)呈交错式矩阵形布置。
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Application publication date: 20200728 Assignee: NANJING KESEN KENEN ENVIRONMENT & ENERGY Co.,Ltd. Assignor: CHANGZHOU University Contract record no.: X2023980053840 Denomination of invention: An energy-saving device for preheating hazardous waste heat Granted publication date: 20220311 License type: Common License Record date: 20231225 |