WO2021223257A1 - 一种单轴空心螺旋污泥干燥装置 - Google Patents

一种单轴空心螺旋污泥干燥装置 Download PDF

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Publication number
WO2021223257A1
WO2021223257A1 PCT/CN2020/090326 CN2020090326W WO2021223257A1 WO 2021223257 A1 WO2021223257 A1 WO 2021223257A1 CN 2020090326 W CN2020090326 W CN 2020090326W WO 2021223257 A1 WO2021223257 A1 WO 2021223257A1
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Prior art keywords
shaft
hollow
sludge
blades
main shaft
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PCT/CN2020/090326
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English (en)
French (fr)
Inventor
贺建明
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南京山河环境科技有限公司
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Publication of WO2021223257A1 publication Critical patent/WO2021223257A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
    • B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening

Definitions

  • the utility model relates to the field of sludge treatment, in particular to a single-shaft hollow spiral sludge drying device.
  • Sludge drying means that the moisture content of the sludge after mechanical dewatering is still above 78%.
  • the thermal drying of sludge can further remove the moisture in the dewatered sludge through the heat transfer between the sludge and the heat medium. Volume reduction. After drying, the odor, pathogens, viscosity, instability, etc. of the sludge have been significantly improved. It can be used as fertilizer, soil conditioner, building materials, landfill, alternative energy, or converted into oil or gas to further refine chemical products. Wait.
  • a uniaxial hollow spiral sludge drying device is provided to solve the problems of poor sludge drying equipment in the prior art in promoting material flow and difficulty in breaking through the gel phase.
  • a single-shaft hollow spiral sludge drying device includes a casing for accommodating the passage of sludge.
  • a hollow spiral shaft is penetrated in the inner cavity of the casing.
  • the blade, the blade and the main shaft are both hollow structures, and the cavities of the two parts are communicated with each other;
  • One end of the hollow screw shaft is connected with a driving device, and is driven by the driving device to rotate in the housing, the blades of the hollow screw shaft push the sludge in the housing forward; the other end of the hollow screw shaft is connected with The rotary joint is connected, and the heating medium enters and exits the cavity enclosed by the blade of the hollow screw shaft and the main shaft through the rotary joint.
  • both ends of the main shaft are respectively provided with a first shaft head and a second shaft head, the first shaft head is connected to the driving device, and the second shaft head is connected to the rotary joint connect.
  • the rotary joint has a hollow structure, and the rotary joint is provided with a heating medium inlet and a heating medium outlet, and the heating medium inlet and the heating medium outlet pass through the inner cavity of the rotary joint and the hollow screw shaft The inner cavity is connected.
  • the blades of the hollow spiral shaft are formed by welding a first spiral piece and a second spiral piece, and the roots of the two spiral pieces are welded and fixed to the main shaft.
  • communicating holes are provided on the main shaft at positions corresponding to the two ends of the blade and the main shaft, and the inner cavity of the main shaft and the blade are connected through two communicating holes.
  • a baffle is provided between the two communicating holes in the inner cavity of the main shaft, and the baffle divides the inner cavity of the main shaft into two parts.
  • a jacket is also wrapped on the outside of the housing, the jacket is of a hollow structure, and a heating medium is passed into the inner cavity of the jacket.
  • the top of one end of the shell is provided with a feed port, and the bottom of the other end is provided with a discharge port, and the blades of the hollow screw shaft push the sludge in the shell from the feed port to the discharge port. Go forward in the direction of the mouth.
  • the utility model is provided with a hollow spiral shaft in the inner cavity of the shell of the sludge drying device. While the hollow spiral shaft rotates, the spiral blade pushes the sludge in the shell forward. Because the sludge is pushed forward by the blade, the blade There is no requirement for the speed of the blade, so the blade is not easy to wear, and at the same time, due to the propulsion of the blade, the gel phase material will not accumulate in the equipment; in addition, the blade and the main shaft in the utility model are both hollow structures, and the cavities of the two parts are connected to each other , The heating medium is introduced into the connected cavity to fully heat the sludge in the shell and improve the drying effect of the wet sludge; a baffle is provided between the two communicating holes in the inner cavity of the main shaft, and the baffle removes the heating medium of the blade.
  • the inlet and outlet are separated to prevent the occurrence of short flow; the shell is also wrapped with a jacket, and the jacket and the hollow spiral shaft can be fed with heating medium at the same time, which further improves the heating effect of the sludge, shortens the drying time, and improves Drying efficiency.
  • Figure 1 is a schematic diagram of the structure of the sludge drying device of the present invention.
  • Figure 2 is a schematic diagram of the hollow spiral shaft of the present invention.
  • the reference signs in the figure are: 1-shell, 2-jacket, 3-hollow screw shaft, 4-rotary joint, 5-drive device, 6-first shaft head, 7-spindle, 8-first screw Sheet, 9-second spiral sheet, 10-baffle plate, 11-second shaft head.
  • the utility model discloses a single-shaft hollow spiral sludge drying device, which includes a housing 1 for accommodating the passage of sludge and a hollow spiral shaft 3 penetrating the housing 1.
  • the top of one end of the shell 1 is provided with a feed port, and the bottom of the other end is provided with a discharge port.
  • the shell 1 is also wrapped with a jacket 2, the jacket 2 has a hollow structure, and a heating medium is passed into the inner cavity of the jacket 2.
  • the hollow screw shaft 3 includes a main shaft 7 and blades helically arranged along the main shaft 7.
  • the blades and the main shaft 7 are both hollow structures, and the cavities of the two parts are communicated with each other.
  • the blade is formed by welding the first spiral piece 8 and the second spiral piece 9, and the roots of the two spiral pieces are welded and fixed to the main shaft 7.
  • the main shaft 7 is provided with communicating holes at positions corresponding to the two ends of the blades.
  • the main shaft 7 and the inner cavity of the blade are communicated with each other through two communicating holes.
  • the inner cavity of the main shaft 7 is provided with a baffle 10 between the two communicating holes, and the baffle 10 divides the inner cavity of the main shaft 7 into two parts.
  • the two ends of the main shaft 7 are respectively provided with a first shaft head 6 and a second shaft head 11, the first shaft head 6 is connected with the driving device 5, the hollow screw shaft 3 is driven by the driving device 5 to rotate in the housing 1, and the hollow The blades of the screw shaft 3 push the sludge in the housing 1 from the inlet to the outlet.
  • the second shaft head 11 is connected with the rotary joint 4.
  • the rotary joint 4 has a hollow structure.
  • the rotary joint 4 is provided with a heating medium inlet and a heating medium outlet.
  • the heating medium inlet and the heating medium outlet pass through the inner cavity of the rotary joint 4 and the hollow screw shaft
  • the inner cavity of 3 is connected, and the heating medium enters and exits the cavity enclosed by the blades of the hollow screw shaft 3 and the main shaft 7 through the rotary joint 4.
  • the wet sludge enters the shell 1 from the inlet, the driving device 5 drives the hollow screw shaft 3 to rotate, and the blade pushes the sludge in the shell 1 to the outlet.
  • the heat medium passes into the jacket 2 and the rotary joint 4 respectively, and the heat medium entering the rotary joint 4 then enters the inner cavity of the main shaft 7 and the blade.
  • the jacket 2 and the hollow screw shaft 3 simultaneously treat the sludge in the shell 1 Heat it up.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

本实用新型公开一种单轴空心螺旋污泥干燥装置，包括容纳污泥通过的壳体，所述壳体的内腔中贯穿设置有一空心螺旋轴，所述空心螺旋轴包括主轴和沿所述主轴螺旋设置的叶片，所述叶片和所述主轴均为空心结构，且两部分的空腔相互连通；所述空心螺旋轴的一端与驱动装置连接，并在所述驱动装置的驱动下在所述壳体内旋转，空心螺旋轴的叶片推动壳体内的污泥前进。本实用新型在污泥干燥装置的壳体的内腔中贯穿设置有一空心螺旋轴，空心螺旋轴旋转的同时，其螺旋叶片推动壳体内的污泥前进，由于污泥通过叶片推动前进，对叶片的转速没有要求，因此叶片不易磨损，同时，由于叶片的推进作用，胶凝相物料不会在设备内积聚。

Description

一种单轴空心螺旋污泥干燥装置 技术领域
本实用新型涉及污泥处理领域，具体涉及一种单轴空心螺旋污泥干燥装置。
 背景技术
污泥干化是经机械脱水后的污泥含水率仍在78%以上，污泥热干化可以通过污泥与热媒之间的传热作用，进一步去除脱水污泥中的水分使污泥减容。干化后污泥的臭味、病原体、黏度、不稳定等得到显著改善，可用作肥料、土壤改良剂、制建材、填埋、替代能源或是转变为油、气后再进一步提炼化工产品等。
目前污泥干化项目发展迅速，各地方的干化项目建设数量越来越多。但污泥干化技术中应用最为广泛的间接式干化工艺在实际应用中遇到各种难题并未有效解决，例如圆盘式和桨叶式干化设备的易磨损问题，以及胶凝相导致物料流动不畅设备功率高等问题。现有的污泥干化设备的叶片为单片独立相互不连接的盘片，所以无法推进物料前进，所以设备在使用中需要高速转动，利用物料本身的翻动使进料端物料不断推动后面物料前进，较高的转速使得盘片易磨损，且盘片没有推进作用，胶凝相物料会在设备内积聚，形成大块状的物料会导致设备转动困难，从而导致驱动功率上升。易磨损问题直接体现出来的是设备利用率低，生产线停机检修频繁，用户的投资不能按计划得到收益。胶凝相问题导致设备运行功率高，是用户运营费用高的主要原因之一。目前这类设备在不断的应用过程中并没有技术上的提升来解决相关问题。
 技术问题
提供一种单轴空心螺旋污泥干燥装置，以解决现有技术存在污泥干燥设备推动物料流动效果差、难以突破胶凝相的问题。
 技术解决方案
一种单轴空心螺旋污泥干燥装置，包括容纳污泥通过的壳体，所述壳体的内腔中贯穿设置有一空心螺旋轴，所述空心螺旋轴包括主轴和沿所述主轴螺旋设置的叶片，所述叶片和所述主轴均为空心结构，且两部分的空腔相互连通；
所述空心螺旋轴的一端与驱动装置连接，并在所述驱动装置的驱动下在所述壳体内旋转，空心螺旋轴的叶片推动壳体内的污泥前进；所述空心螺旋轴的另一端与旋转接头连接，加热介质通过所述旋转接头进出所述空心螺旋轴的叶片和主轴围成的空腔。
在进一步的实施例中，所述主轴的两端分别设置有第一轴头和第二轴头，所述第一轴头与所述驱动装置连接，所述第二轴头与所述旋转接头连接。
在进一步的实施例中，所述旋转接头为中空结构，旋转接头上设置有加热介质进口和加热介质出口，所述加热介质进口和加热介质出口通过旋转接头的内腔与所述空心螺旋轴的内腔连通。
在进一步的实施例中，所述空心螺旋轴的叶片由第一螺旋片和第二螺旋片焊接形成，两螺旋片的根部与所述主轴焊接固定。
在进一步的实施例中，在所述主轴上与所述叶片首末两端相对应位置处开设有连通孔，所述主轴和叶片的内腔通过两连通孔相连通。
在进一步的实施例中，所述主轴的内腔中在两连通孔之间设置有挡板，所述挡板将主轴的内腔分割为两部分。
在进一步的实施例中，所述壳体的外部还包裹有一夹套，所述夹套为中空结构，夹套的内腔中通入加热介质。
在进一步的实施例中，所述壳体的一端顶部设置有进料口，另一端的底部设置有出料口，所述空心螺旋轴的叶片推动壳体内的污泥由进料口向出料口方向前进。
 有益效果
本实用新型在污泥干燥装置的壳体的内腔中贯穿设置有一空心螺旋轴，空心螺旋轴旋转的同时，其螺旋叶片推动壳体内的污泥前进，由于污泥通过叶片推动前进，对叶片的转速没有要求，因此叶片不易磨损，同时，由于叶片的推进作用，胶凝相物料不会在设备内积聚；另外本实用新型中叶片和主轴均为空心结构，且两部分的空腔相互连通，连通的空腔中通入加热介质对壳体内污泥充分加热，提高湿污泥的干燥效果；在主轴的内腔中在两连通孔之间设置有挡板，挡板将叶片的加热介质进出口分隔开，可以防止短流的发生；壳体的外部还包裹有一夹套，夹套与空心螺旋轴可同时通入加热介质，进一步提高对污泥的加热效果，缩短干燥时间，提升干燥效率。
 附图说明
图1为本实用新型所述污泥干燥装置的结构示意图。
图2位本实用新型所述空心螺旋轴的结构示意图。
图中各附图标记为：1-壳体、2-夹套、3-空心螺旋轴、4-旋转接头、5-驱动装置、6-第一轴头、7-主轴、8-第一螺旋片、9-第二螺旋片、10-挡板、11-第二轴头。
 本发明的实施方式
在下文的描述中，给出了大量具体的细节以便提供对本实用新型更为彻底的理解。然而，对于本领域技术人员而言显而易见的是，本实用新型可以无需一个或多个这些细节而得以实施。在其他的例子中，为了避免与本实用新型发生混淆，对于本领域公知的一些技术特征未进行描述。
参照附图1至图2，本实用新型公开了一种单轴空心螺旋污泥干燥装置，包括容纳污泥通过的壳体1以及贯穿设置在壳体1内的一空心螺旋轴3。
壳体1的一端顶部设置有进料口，另一端的底部设置有出料口。壳体1的外部还包裹有一夹套2，夹套2为中空结构，夹套2的内腔中通入加热介质。
空心螺旋轴3包括主轴7和沿主轴7螺旋设置的叶片。叶片和主轴7均为空心结构，且两部分的空腔相互连通。叶片由第一螺旋片8和第二螺旋片9焊接形成，两螺旋片的根部与主轴7焊接固定。在主轴7上与叶片首末两端相对应位置处开设有连通孔，主轴7和叶片的内腔通过两连通孔相连通。主轴7的内腔中在两连通孔之间设置有挡板10，挡板10将主轴7的内腔分割为两部分。
主轴7的两端分别设置有第一轴头6和第二轴头11，第一轴头6与驱动装置5连接，空心螺旋轴3在驱动装置5的驱动下在壳体1内旋转，空心螺旋轴3的叶片推动壳体1内的污泥由进料口向出料口方向前进。第二轴头11与旋转接头4连接，旋转接头4为中空结构，旋转接头4上设置有加热介质进口和加热介质出口，加热介质进口和加热介质出口通过旋转接头4的内腔与空心螺旋轴3的内腔连通，加热介质通过旋转接头4进出空心螺旋轴3的叶片和主轴7围成的空腔。
工作时，湿污泥从进料口进入壳体1，驱动装置5驱动空心螺旋轴3转动，叶片推动壳体1内的污泥向出料口前进。同时，热介质分别通入夹套2和旋转接头4中，进入旋转接头4的热介质再进入主轴7和叶片的内腔，夹套2与空心螺旋轴3同时对壳体1内的污泥进行加热。
如上所述，尽管参照特定的优选实施例已经表示和表述了本实用新型，但其不得解释为对本实用新型自身的限制。在不脱离所附权利要求定义的本实用新型的精神和范围前提下，可对其在形式上和细节上作出各种变化。
如上所述，尽管参照特定的优选实施例已经表示和表述了本实用新型，但其不得解释为对本实用新型自身的限制。在不脱离所附权利要求定义的本实用新型的精神和范围前提下，可对其在形式上和细节上做出各种变化。

Claims (8)

  1. 一种单轴空心螺旋污泥干燥装置，包括容纳污泥通过的壳体，其特征在于，所述壳体的内腔中贯穿设置有一空心螺旋轴，所述空心螺旋轴包括主轴和沿所述主轴螺旋设置的叶片，所述叶片和所述主轴均为空心结构，且两部分的空腔相互连通；
    所述空心螺旋轴的一端与驱动装置连接，并在所述驱动装置的驱动下在所述壳体内旋转，空心螺旋轴的叶片推动壳体内的污泥前进；所述空心螺旋轴的另一端与旋转接头连接，加热介质通过所述旋转接头进出所述空心螺旋轴的叶片和主轴围成的空腔。
  2. 根据权利要求1所述的一种单轴空心螺旋污泥干燥装置，其特征在于：所述主轴的两端分别设置有第一轴头和第二轴头，所述第一轴头与所述驱动装置连接，所述第二轴头与所述旋转接头连接。
  3. 根据权利要求2所述的一种单轴空心螺旋污泥干燥装置，其特征在于：所述旋转接头为中空结构，旋转接头上设置有加热介质进口和加热介质出口，所述加热介质进口和加热介质出口通过旋转接头的内腔与所述空心螺旋轴的内腔连通。
  4. 根据权利要求2所述的一种单轴空心螺旋污泥干燥装置，其特征在于：所述空心螺旋轴的叶片由第一螺旋片和第二螺旋片焊接形成，两螺旋片的根部与所述主轴焊接固定。
  5. 根据权利要求4所述的一种单轴空心螺旋污泥干燥装置，其特征在于：在所述主轴上与所述叶片首末两端相对应位置处开设有连通孔，所述主轴和叶片的内腔通过两连通孔相连通。
  6. 根据权利要求5所述的一种单轴空心螺旋污泥干燥装置，其特征在于：所述主轴的内腔中在两连通孔之间设置有挡板，所述挡板将主轴的内腔分割为两部分。
  7. 根据权利要求1至6中任一项所述的一种单轴空心螺旋污泥干燥装置，其特征在于：所述壳体的外部还包裹有一夹套，所述夹套为中空结构，夹套的内腔中通入加热介质。
  8. 根据权利要求1至6中任一项所述的一种单轴空心螺旋污泥干燥装置，其特征在于：所述壳体的一端顶部设置有进料口，另一端的底部设置有出料口，所述空心螺旋轴的叶片推动壳体内的污泥由进料口向出料口方向前进。
PCT/CN2020/090326 2020-05-07 2020-05-14 一种单轴空心螺旋污泥干燥装置 WO2021223257A1 (zh)

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Application Number Priority Date Filing Date Title
CN202020738413 2020-05-07
CN202020738413.0 2020-05-07

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CN115231641A (zh) * 2022-07-21 2022-10-25 安徽润岳科技有限责任公司 一种阻燃剂加工过程中污泥水处理系统

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