CN103667359B - 一种柱塞式干式注料工艺 - Google Patents

一种柱塞式干式注料工艺 Download PDF

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CN103667359B
CN103667359B CN201310636016.7A CN201310636016A CN103667359B CN 103667359 B CN103667359 B CN 103667359B CN 201310636016 A CN201310636016 A CN 201310636016A CN 103667359 B CN103667359 B CN 103667359B
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CN103667359A (zh
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徐吉磊
井力
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QINGDAO TIANREN ENVIRONMENT CO Ltd
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Abstract

本发明涉及一种柱塞式干式注料工艺,以干式进料方式取代了传统的湿式进料方式,将预处理工艺和进料工艺集于一体,具体包括以下步骤:(1)将农业废弃物进行粉碎处理,然后将符合粒径要求的物料加入到柱塞式干式进料设备的料仓内;(2)使用搅拌机对料仓内的物料进行搅拌复混,将搅拌均匀的物料通过水平输送螺旋机送至柱塞式进料泵的柱塞缸体;(3)启动柱塞式进料泵将柱塞缸体内的干式物料送入厌氧反应器;(4)如采用湿式厌氧发酵工艺,则通过循环泵将沼液送入湿式反应器,与干式物料混合,并调整物料浓度。

Description

一种柱塞式干式注料工艺
技术领域
本发明涉及一种柱塞式干式注料工艺,属环保领域。
技术背景
随着沼气工程在国内的大量普及,沼气项目原料已从开始较为单一的畜禽粪便开始向多种原料组成的复合原料或者是农业废弃物类(能源作物、秸秆等)转变。原料的转变对传统的预处理及进料工艺在运行稳定性和经济性上带来了新的挑战。传统的预处理工艺和进料工艺大多数仅适用于原料经过调配后流动性较好的原料,为了保证良好的输送能力往往不能保证进料浓度,使反应器的体系浓度达不到设计值,进而导致项目产期率和日产气量不能达到设计要求,直接影响项目的经济效益。
发明内容
本发明的目的是提供一种柱塞式干式注料工艺,以干式进料方式取代了传统的湿式进料方式,将预处理工艺和进料工艺集于一体。
为实现以上目的,本发明的一种柱塞式干式注料工艺,包括以下步骤:
(1) 将农业废弃物进行粉碎处理,然后将符合粒径要求的物料加入到柱塞式干式进料设备的料仓内;
(2) 使用搅拌机对料仓内的物料进行搅拌复混,将搅拌均匀的物料通过水平输送螺旋机送至柱塞式进料泵的柱塞缸体;
(3) 启动柱塞式进料泵将柱塞缸体内的干式物料送入厌氧反应器;
(4) 如采用湿式厌氧发酵工艺,则通过循环泵将沼液送入湿式反应器,与干式物料混合,并调整物料浓度。
进一步的,将所述农业废弃物粉碎至粒径小于40mm。
进一步的,所述搅拌机的搅拌桨为锥螺旋结构;所述锥螺旋结构中螺旋面的直径由上到下逐渐增大。
本发明的柱塞式干式注料工艺的输送能力为:每小时输送13.56m3-26.88m3,每天以6小时计输送81.36m3-161.28m3物料。
本发明产生的有益效果为:传统的农业废弃物的进料方式为将物料粉碎后加水调配至很低的浓度,然后利用大功率泵体或者压力泵打入反应器,运行不可靠。本发明的柱塞式干式注料工艺则是将粉碎后的物料通过柱塞泵将干式物料直接泵入反应器,再通过循环泵往反应器补充沼液来调整反应器内物料浓度。因此,本发明实现了利用干式进料系统取代了传统的湿式进料方式;用柱塞式干式注料机取代了传统的调配池、进料泵、搅拌机等设备;实现了无堵塞进料,保证物料进料的稳定性。
具体实施方式
一种柱塞式干式注料工艺,包括以下步骤:(1)将农业废弃物进行粉碎处理,然后将粒径小于40mm的物料加入到柱塞式干式进料设备的料仓内;(2) 使用搅拌机对料仓内的物料进行搅拌复混,所述搅拌机的搅拌桨为锥螺旋结构,所述锥螺旋结构中螺旋面的直径由上到下逐渐增大,最大直径为1200mm,所述搅拌机不仅能够起到混合物料的作用,还能产生向下的作用力,将物料送至料仓底部,从而可以通过水平输送螺旋机将物料送至柱塞式进料泵的柱塞缸体;(3) 启动柱塞式进料泵将柱塞缸体内的干式物料送入厌氧反应器;(4) 如采用湿式厌氧发酵工艺,则通过循环泵将沼液送入湿式反应器,与干式物料混合,并调整物料浓度;如采用干式厌氧发酵工艺,则解决了干式厌氧反应器的进料难题。本发明的柱塞式干式注料工艺的输送能力为:每小时输送13.56m3-26.88m3,每天(6小时)输送81.36m3-161.28m3物料。

Claims (1)

1.一种柱塞式干式注料工艺,其特征在于:包括以下步骤:
(1) 将农业废弃物进行粉碎处理,然后将符合粒径要求的物料加入到柱塞式干式进料设备的料仓内;
(2) 使用搅拌机对料仓内的物料进行搅拌复混,将搅拌均匀的物料通过水平输送螺旋机送至柱塞式进料泵的柱塞缸体;
(3) 启动柱塞式进料泵将柱塞缸体内的干式物料送入厌氧反应器;
(4) 如采用湿式厌氧发酵工艺,则通过循环泵将沼液送入湿式反应器,与干式物料混合,并调整物料浓度;
所述搅拌机的搅拌桨为锥螺旋结构;所述锥螺旋结构中螺旋面的直径由上到下逐渐增大;将所述农业废弃物粉碎至粒径小于40mm;每小时输送13.56m3-26.88m3,每天以6小时计输送81.36m3-161.28m3物料。
CN201310636016.7A 2013-12-03 2013-12-03 一种柱塞式干式注料工艺 Active CN103667359B (zh)

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CN107312704B (zh) * 2017-07-05 2020-06-05 辽宁省能源研究所 一种适用宽筛分物料生产沼气的干式厌氧发酵系统及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002018534A2 (en) * 2000-08-31 2002-03-07 Jeesung Livestock Engineering Co., Ltd. Apparatus for treating livestock wastes . foodstuff wastes
EP1201111A1 (de) * 2000-10-24 2002-05-02 PlanET Energietechnik GmbH Biogasanlagen-Zuführungseinrichtung
CN202986168U (zh) * 2012-11-30 2013-06-12 河北农乐生物质资源利用有限公司 立轴环模生物质压块机两级推料强制喂料机构
CN103387932A (zh) * 2013-08-06 2013-11-13 江苏维尔利环保科技股份有限公司 干式厌氧反应处理装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002018534A2 (en) * 2000-08-31 2002-03-07 Jeesung Livestock Engineering Co., Ltd. Apparatus for treating livestock wastes . foodstuff wastes
EP1201111A1 (de) * 2000-10-24 2002-05-02 PlanET Energietechnik GmbH Biogasanlagen-Zuführungseinrichtung
CN202986168U (zh) * 2012-11-30 2013-06-12 河北农乐生物质资源利用有限公司 立轴环模生物质压块机两级推料强制喂料机构
CN103387932A (zh) * 2013-08-06 2013-11-13 江苏维尔利环保科技股份有限公司 干式厌氧反应处理装置

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