CN106010708A - 一种可持久燃烧的燃料棒及其制作工艺 - Google Patents
一种可持久燃烧的燃料棒及其制作工艺 Download PDFInfo
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- C10L2290/24—Mixing, stirring of fuel components
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- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/28—Cutting, disintegrating, shredding or grinding
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- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/30—Pressing, compressing or compacting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
本发明公开了一种可持久燃烧的燃料棒及其制作工艺,其配方的重量百分比如下:柞木锯末20‑50%,柞木刨花15‑40%,养虾塘泥15‑40%,黄胶泥3‑12%,木焦油3‑5%,炉渣5‑10%。本发明相比现有技术具有以下优点合理配比原料组份,使燃料棒在充分燃烧后发热量大,杂质少,灰分少,成型率高;用养虾塘泥和柞木刨花密封放置,可以改善柞木刨花中纤维素的内部结构,增加原料中的活性成分,有助于燃料燃烧充分;分两次进行颗粒挤压,将锯末粉末挤压成颗粒后作为第二次挤压原料,可使燃料棒内部含有紧致的耐燃结构,在燃料棒充分燃烧后发热量和燃烧时间都有提高,燃烧后的废渣易于清理、可回田使用。
Description
技术领域
本发明属于生物固体燃料技术领域,具体涉及一种可持久燃烧的燃料棒及其制作工艺。
背景技术
随着全球经济的快速发展,人类对能源的需求不断增加,而传统能源在不断枯竭,开发生物质燃料已成为现在能源项目研究的重要课题之一,现在通常对生物质原料或者废料进行简单的除尘、干燥后检测其热值,然后针对相应的热值添加一定量的助燃剂或高热值材料以达到需求,最后通过挤压成为颗粒燃料,但是由于生活中不仅需要合适的热量,持久的燃烧也是燃料的一个重要指标,但目前对该方面的技术研究较少。
发明内容
本发明的目的是针对现有的问题,提供了一种可持久燃烧的燃料棒及其制作工艺。
本发明是通过以下技术方案实现的:一种可持久燃烧的燃料棒,其配方的重量百分比如下:柞木锯末20-50%,柞木刨花15-40%,养虾塘泥15-40%,黄胶泥3-12%,木焦油2-8%,炉渣3-15%。
优选的,一种可持久燃烧的燃料棒,其配方的重量百分比如下:柞木锯末30-35%,柞木刨花20-25%,养虾塘泥25-30%,黄胶泥5-8%,木焦油3-5%,炉渣5-10%。
作为对上述方案的进一步补充,所述养虾塘泥的水含量为50-65%。
一种可持久燃烧的燃料棒的制作工艺,包括以下步骤:
(1)将养虾塘泥和柞木刨花混拌均匀,在28-32℃的条件下密封放置2-3天,每天翻堆一次,得到混合物后,在70-80℃的条件下烘干至水分为6-8%,对其进行粉碎,使混合物粒径控制在1mm以内,然后进行搅拌,在搅拌过程中喷入适量水,混合物含水量达到10-15%,备用;
(2)将柞木锯末晾干后进行粉碎,过15-20目筛,让后将柞木锯末送入永磁筒吸附其金属微粒,所得柞木锯末含水量为8-10%;
(3)将柞木锯末和木焦油混合后采用挤压式造粒,颗粒粒径为0.3-0.4mm;
(4)将所制得颗粒与混合物、黄胶泥和炉渣进行混合,混合后送入挤压造粒机中,得到燃料棒。
作为对上述方案的进一步补充,所述步骤(3)中,在造粒过程中喷水进行调节,使造粒机内温度保持在90-95℃,造粒机物料压缩比为1:5。
作为对上述方案的进一步补充,所述步骤(4)中,在造粒过程中喷水进行调节,使造粒机内温度保持在70-80℃,造粒机物料压缩比为1:3。
其中,所述燃料棒为圆柱体,直径为8-12mm,高度为30-35mm。
本发明相比现有技术具有以下优点:
(1)合理配比原料组份,使燃料棒在充分燃烧后发热量大,杂质少,灰分少,成型率高;
(2)用养虾塘泥和柞木刨花密封放置,可以改善柞木刨花中纤维素的内部结构,增加原料中的活性成分,有助于燃料燃烧充分,保持炉内温度;
(3)分两次进行颗粒挤压,将锯末粉末挤压成颗粒后作为第二次挤压原料,可使燃料棒内部含有紧致的耐燃结构,在燃料棒充分燃烧后发热量大于3380KJ/kg,燃烧时间延长了20%左右,燃烧后的废渣易于清理、可回田使用。
具体实施方式
实施例
一种可持久燃烧的燃料棒,其配方的重量百分比如下:柞木锯末32%,柞木刨花24%,养虾塘泥30%,黄胶泥6%,木焦油3%,炉渣5%。
一种可持久燃烧的燃料棒的制作工艺,包括以下步骤:
(1)将养虾塘泥和柞木刨花混拌均匀,在28-32℃的条件下密封放置2-3天,每天翻堆一次,得到混合物后,在70-80℃的条件下烘干至水分为6-8%,对其进行粉碎,使混合物粒径控制在1mm以内,然后进行搅拌,在搅拌过程中喷入适量水,混合物含水量达到10-15%,备用;
(2)将柞木锯末晾干后进行粉碎,过15-20目筛,让后将柞木锯末送入永磁筒吸附其金属微粒,所得柞木锯末含水量为8-10%;
(3)将柞木锯末和木焦油混合后采用挤压式造粒,颗粒粒径为0.3-0.4mm;
其中,所述步骤(3)中,在造粒过程中喷水进行调节,使造粒机内温度保持在90-95℃,造粒机物料压缩比为1:5;
(4)将所制得颗粒与混合物、黄胶泥和炉渣进行混合,混合后送入挤压造粒机中,得到燃料棒;
其中,所述步骤(4)中,在造粒过程中喷水进行调节,使造粒机内温度保持在70-80℃,造粒机物料压缩比为1:3。
本实施例制得的燃料棒为圆柱体,直径为10mm,高度为32mm。
为验证本发明中燃料棒效果,设立对照组1,对照组1按照本发明中材料组份,粉碎后混合,并用造粒机中挤压得到燃料棒,燃料棒的物料压缩比为1:4,直径和高度与实施例中相同;设立对照组2,在市场上购置由柞木锯末为主要原料,按常规方法制备同规格的燃料棒;检测燃料棒的燃烧指标,具体数据如下:
项目 | 实施例 | 对照组1 | 对照组2 |
热值(Kcal/kg) | 4200 | 3650 | 4100 |
灰分(%) | 3.8 | 5.3 | 4.2 |
挥发分(%) | 85.2 | 82.5 | 85.4 |
燃烧率(%) | 96.8 | 87.4 | 92.5 |
结渣率(%) | 1.6 | 3.5 | 2.8 |
表1
由于对照组1中原料未作相应处理,会导致部分燃料结构坚硬,不易燃烧,影响燃烧热值;对照组2中选用柞木锯末,能够达到较高的燃烧热值,但是由于燃料结构均匀松散,燃烧到后期会有部分燃料被吹起,影响炉内温度,从而使其燃烧不充分,持续时间相对减短。
本发明中燃料棒的燃烧时间比对照组2延长了20%左右的时间,结合表1中数据可以看出,本发明中方法制备的燃料棒燃烧热值达到要求,所含灰分少,燃烧率高,商品性较好,易于推广。
Claims (7)
1. 一种可持久燃烧的燃料棒,其特征在于,其配方的重量百分比如下:柞木锯末20-50%,柞木刨花15-40%,养虾塘泥15-40%,黄胶泥3-12%,木焦油2-8%,炉渣3-15%。
2. 如权利要求1所述一种可持久燃烧的燃料棒,其特征在于,其配方的重量百分比如下:柞木锯末30-35%,柞木刨花20-25%,养虾塘泥25-30%,黄胶泥5-8%,木焦油3-5%,炉渣5-10%。
3. 如权利要求1所述一种可持久燃烧的燃料棒,其特征在于,所述养虾塘泥的水含量为50-65%。
4.一种如权利要求1所述可持久燃烧的燃料棒的制作工艺,其特征在于,包括以下步骤:
(1)将养虾塘泥和柞木刨花混拌均匀,在28-32℃的条件下密封放置2-3天,每天翻堆一次,得到混合物后,在70-80℃的条件下烘干至水分为6-8%,对其进行粉碎,使混合物粒径控制在1mm以内,然后进行搅拌,在搅拌过程中喷入适量水,混合物含水量达到10-15%,备用;
(2)将柞木锯末晾干后进行粉碎,过15-20目筛,让后将柞木锯末送入永磁筒吸附其金属微粒,所得柞木锯末含水量为8-10%;
(3)将柞木锯末和木焦油混合后采用挤压式造粒,颗粒粒径为0.3-0.4mm;
(4)将所制得颗粒与混合物、黄胶泥和炉渣进行混合,混合后送入挤压造粒机中,得到燃料棒。
5.如权利要求4所述一种可持久燃烧的燃料棒的制作工艺,其特征在于,所述步骤(3)中,在造粒过程中喷水进行调节,使造粒机内温度保持在90-95℃,造粒机物料压缩比为1:5。
6. 如权利要求4所述一种可持久燃烧的燃料棒的制作工艺,其特征在于,所述步骤(4)中,在造粒过程中喷水进行调节,使造粒机内温度保持在70-80℃,造粒机物料压缩比为1:3。
7. 如权利要求4所述一种可持久燃烧的燃料棒的制作工艺,其特征在于,所述燃料棒为圆柱体,直径为8-12mm,高度为30-35mm。
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CN105238480A (zh) * | 2015-10-17 | 2016-01-13 | 东至县兴农菌业有限责任公司 | 一种高效生物质燃料及其制备方法 |
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