WO2013178024A1 - 螺旋卸料过滤离心机的螺旋卸料器 - Google Patents

螺旋卸料过滤离心机的螺旋卸料器 Download PDF

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Publication number
WO2013178024A1
WO2013178024A1 PCT/CN2013/075917 CN2013075917W WO2013178024A1 WO 2013178024 A1 WO2013178024 A1 WO 2013178024A1 CN 2013075917 W CN2013075917 W CN 2013075917W WO 2013178024 A1 WO2013178024 A1 WO 2013178024A1
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WO
WIPO (PCT)
Prior art keywords
spiral
blade
blades
main
discharger
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PCT/CN2013/075917
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English (en)
French (fr)
Inventor
闵庆新
Original Assignee
沧州市华油飞达固控设备有限公司
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Application filed by 沧州市华油飞达固控设备有限公司 filed Critical 沧州市华油飞达固控设备有限公司
Priority to EP13796341.9A priority Critical patent/EP2857105B1/en
Priority to PCT/CN2013/075917 priority patent/WO2013178024A1/zh
Priority to US14/119,800 priority patent/US20160074879A1/en
Publication of WO2013178024A1 publication Critical patent/WO2013178024A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/04—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
    • B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/205—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with special construction of screw thread, e.g. segments, height

Definitions

  • the invention belongs to a screw unloader of a screw discharge filtering centrifuge in the technical field of solid-liquid separation equipment.
  • the spiral unloading filter centrifuge for solid-liquid separation equipment has been widely used in the chemical, coal, food and other industries, especially the oil drilling industry is growing, and it is necessary to de-liquidize a large amount of waste cuttings generated during the oil drilling process.
  • the technical requirements for solid-liquid separation equipment are also increasing.
  • Screw Discharge Filtration The centrifuge's screw unloader is the core component of the machine and is directly related to the quality and effectiveness of solid-liquid separation.
  • the spiral unloader of the existing screw discharge filter centrifuge mainly adopts the main body of the rotary drum type unloader, and a plurality of spiral tenons are formed on the rotating drum body, or several pieces are attached.
  • the fixed spiral scraper is composed of a set of screens outside the screw unloader when assembling the whole machine.
  • the effect is poor, because the liquid content of the waste drilling fluid varies widely, and the types of solid phase particles are not easily broken sandstone, but also hydrated and dispersed shale, and even fiber, so variable material characteristics are used.
  • the existing spiral discharge filter centrifuge is mainly used for directly processing materials when processing materials with high liquid content, and when the materials containing sticky solid phase particles or fibers are treated, it is easy to block the filter screen. When running, the separated cuttings often contain about 20% of liquid, and these liquid-containing cuttings cause environmental pollution and waste of drilling fluid resources.
  • the object of the present invention is to provide a simple and practical structure, good solid-liquid separation effect, and is also suitable for liquid recovery treatment of petroleum cutting waste cuttings, and has wide application range and convenient use of a new type of screw unloading with a screw discharge filtering centrifuge. Feeder.
  • the utility model relates to a screw unloader of a spiral discharge filtering centrifuge, which is provided with: a spiral discharger main body, a screw discharger top cover, a sealing gasket and a cone bushing, and the spiral discharger main body is a rotating taper sleeve
  • the outer body is connected with a plurality of main blades and auxiliary blades, a baffle is fixedly connected between the main blades and the auxiliary blades, and a plurality of floating blades are arranged on the outer side surface of the auxiliary blades, and the sleeve of the main body of the screw unloader is inside
  • a set of cone bushings, a taper sleeve of the main body of the screw unloader and a top of the cone bushing are provided with a gasket, and the top of the screw unloader is attached and fixed by bolts.
  • the spiral unloader of the spiral discharge filtering centrifuge has an open groove on the outer side surface of the auxiliary blade and a plurality of floating blades respectively arranged in the groove, and is matched with the corresponding groove of the auxiliary blade groove
  • the floating vane is attached with a floating vane pressure plate.
  • the outer edge of the floating blade pressure plate has a boss edge, and the inner edge of the floating blade is provided with a boss which is oppositely coupled with the outer boss edge of the floating blade pressure plate.
  • the screw unloader of the above-mentioned spiral discharge filter centrifuge, the top of the top of the screw discharger is made of
  • the main blade and the sub-blade are mounted on the taper sleeve at the same angle, and the lower portion of the main blade and the sub-blade is inclined to the left or right at an angle of 10-20°.
  • the lower portions of the main and sub-blades are tilted to the right by 13 ° and mounted on the outer body of the taper sleeve.
  • the number of the main blades is an even number, and each of the two main blades is a group, and one sub-blade is disposed between each group of main blades.
  • Figure 1 is a block diagram showing the structure of an embodiment of the present invention.
  • Figure 2 is a schematic enlarged view of the main body of the screw unloader of the embodiment of Figure 1.
  • Figure 3 is an enlarged cross-sectional view taken along line A-A of Figure 2;
  • the reference numerals in the drawings are: 1 bolt; 2 screw unloader top cover; 3 sealing gasket; 4 spiral unloader taper sleeve; 5 main blades; 6 sub blades; 7 cone bushing; Floating blade; 10 floating blade pressure plate; 11 screw; C gap between the floating blade pressure plate 6 and the floating blade 5.
  • the present invention is provided with: a screw discharger body, a screw discharger top cover 2, a gasket 3, a cone bushing 7, and the screw discharger body is external to the taper sleeve 4.
  • a screw discharger body There are 8 main blades 5 and 4 sub blades 6 connected to the body, a baffle 8 is fixedly connected between the main blades 5 and the sub blades 6, and 20 floating blades 9 are arranged on the outer side surface of the auxiliary blades 6.
  • the taper sleeve 4 of the main body of the screw discharger is sleeved with a taper bushing 7
  • the taper sleeve 4 of the main body of the screw unloader and the top of the taper bushing 7 are provided with a gasket 3 and then the top cover 2 of the screw unloader is installed.
  • the bolts 1 are connected and fixed; the outer vanes of the sub-blades 6 are provided with open recesses, 20 floating vanes 9 are respectively arranged in the recesses of the sub-blades, and the floating vanes are coupled to the recesses of the corresponding sub-blades 6 9 is equipped with a floating blade pressure plate 10 and has a screw 11 connected and fixed.
  • the outer edge of the floating blade pressure plate 10 of the present invention is provided with a boss edge, and the inner edge of the floating blade 9 is formed with a boss which is oppositely coupled with the outer boss edge of the floating blade pressure plate.
  • a gap C is left between the floating vane pressure plate 6 and the floating vane 5, so that each of the floating vanes can move independently within a set range.
  • the top of the screw unloader top cover 2 of the present invention is provided with four uniformly distributed centrifugal pump impeller-shaped feed blades.
  • the main blade 5 and the sub-blade 6 are mounted on the taper sleeve 4 at the same angle, and the lower portions of the main blade 5 and the sub-blade 6 are inclined to the left or right at an angle of 10-20°.
  • the lower part of the main and sub-blades are inclined to the right by 13 ° and mounted on the outer body of the taper sleeve.
  • the number of main blades is an even number, and each of the two main blades is a group, and one sub-blade is disposed between each group of main blades.
  • the screw unloader of the present invention is assembled to the power shaft of the spiral discharge filtering centrifuge according to design requirements, and the outer surface is equipped with a tapered screen.
  • the working principle is as follows: During the operation, the power shaft of the screw unloading filter centrifuge drives the screw unloader to rotate. After the material enters the top of the screw unloader, the centrifugal pump impeller on the top of the screw unloader is firstly used.
  • the shaper is fully accelerated, which can effectively avoid the problem that the material directly flows away from the outer surface of the sleeve due to insufficient acceleration; the centrifugal pump impeller on the top of the screw discharger is sufficient Accelerating, the material entering the screw unloader is smashed onto the inner wall of the conical screen.
  • the material does not enter the area between the main blade and the sub-blade, but only Into other areas, where the liquid phase in the material is separated by centrifugal force, a part of the solid phase material is scraped off by the main blade, and the material spirals down while continuing the centrifugal deliquoring, because the main blade and the tapered screen There is a gap between them, there will be a thin layer of material remaining on the inner wall of the conical screen; but because the sub-blade is equipped with floating blades, and each floating blade can move independently, The shape of the conical screen is deviated, and the floating vane can automatically adapt to the shape of the inner wall of the conical screen, and always adheres to the inner wall of the conical screen.
  • the main blade is scraped and remains on the inner wall of the conical screen.
  • the thin layer of solid phase material is scraped off by the floating blades that are always in close contact with the inner wall of the tapered screen, thus making the cone.
  • the screen keeps the mesh open and the solid-liquid separation effect is good.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

一种螺旋卸料过滤离心机的螺旋卸料器包括卸料器主体、螺旋卸料器顶盖（2）、锥衬套（7）、密封垫片（3）。螺旋卸料器主体是由锥套（4）的外体上装连有数个主叶片（5）和副叶片（6），在主叶片（5）和副叶片（6）之间固定连接有挡板（8），并在副叶片（6）外侧面上装设有数个浮动叶片（9）所组成。卸料器主体的锥套（4）内套连锥衬套（7）；卸料器主体的锥套（4）和锥衬套（7）顶部加装密封垫片（3）后，装连螺旋卸料器顶盖（2）并由螺栓（1）连接固定。该螺旋卸料器结构简单实用，适于装配各型的螺旋卸料过滤离心机，应用于煤炭、食品、石油开采等行业。

Description

螺旋卸料过滤离心机的螺旋卸料器 技术领域
本发明属于固液分离设备技术领域中_种螺旋卸料过滤离心机的螺旋卸料 器。
背景技术
固液分离设备的螺旋卸料过滤离心机已经广泛应用化工、 煤炭、 食品等行 业， 尤其是石油钻探业的日益发展， 需要对石油钻井过程中产生的大量废弃岩 屑进行脱液处理， 因此对固液分离设备的技术要求也越来越高。 螺旋卸料过滤 离心机的螺旋卸料器是机器的核心部件， 它直接关联到固液分离的质量和效果。 在公知技术中， 现有的螺旋卸料过滤离心机的螺旋卸料器主要是采用的转鼓式 螺旋卸料器主体， 在转鼓体上制有数条螺旋凸楞， 或是装连有数条固定式螺旋 刮板组成， 装配整机时在螺旋卸料器外配合套装筛网。 但受其结构所限， 固定 形状的主叶片总与锥形筛网的内壁之间存在一定的间隙， 其构造设计不合理， 特别是用于石油钻井废弃岩屑的回收液体处理其固液分离效果差， 因为废弃钻 井液含液率变化范围很大， 其中固相颗粒的种类既有不易破碎的砂岩， 也有容 易水化分散的泥页岩， 甚至还有纤维， 如此多变的物料特性使用现有的螺旋卸 料过滤离心机处理， 主要表现为处理含液率高的物料时直接跑料， 而处理含有 粘细固相颗粒或者含有纤维的物料时， 又易使得滤筛网堵塞也造成跑料， 分离 出来的岩屑中常含有 20%左右的液体， 这些含有液体的岩屑排放又造成了环境 污染和钻井液资源的浪费。
发明内容
为了克服现有技术的不足， 解决现有的螺旋卸料过滤离心机的螺旋卸料器 构造设计不合理， 固液分离效果差的问题。 本发明之目的是提供一种结构简单 实用， 固液分离效果好， 也适于石油钻井废弃岩屑的液体回收处理， 应用范围 广， 使用方便的配装螺旋卸料过滤离心机的新式螺旋卸料器。
本发明解决上述问题所采用的技术方案是：
一种螺旋卸料过滤离心机的螺旋卸料器， 它设有： 螺旋卸料器主体、 螺旋 卸料器顶盖、 密封垫片、 锥衬套， 螺旋卸料器主体是由旋转锥套的外体上装连 有数个主叶片和副叶片， 在主叶片和副叶片之间固定连接有挡板， 并在副叶片 外侧面上装设有数个浮动叶片所组成， 螺旋卸料器主体的锥套内套连锥衬套， 螺旋卸料器主体的锥套和锥衬套顶部加装密封垫片后装连螺旋卸料器顶盖并由 螺栓连接固定。
上述螺旋卸料过滤离心机的螺旋卸料器， 所述副叶片外侧面上开制有开口 凹槽并在凹槽内分别装设有数个浮动叶片， 并在对应副叶片凹槽口部配合连接 浮动叶片装连有浮动叶片压板。
上述螺旋卸料过滤离心机的螺旋卸料器， 所述浮动叶片压板的外侧边缘制 有凸台边缘， 浮动叶片的内侧边缘制有与浮动叶片压板的外侧凸台边缘相对配 合连接的凸台。
上述螺旋卸料过滤离心机的螺旋卸料器， 所述螺旋卸料器顶盖的顶部制有
3-6个均布的离心泵叶轮状拨料叶片。
上述主叶片和副叶片呈相同的角度安装在锥套上， 并且主叶片和副叶片的 下部向左或者向右倾斜的角度为 10-20° 。
上述主叶片和副叶片的下部向右倾斜 13 ° 安装在锥套的外体上。
上述主叶片的数目为偶数个， 每两个主叶片为一组， 每组主叶片之间设置 有一个副叶片。 由于本发明设计采用了上述技术方案， 有效地解决了现有的螺旋卸料过滤 离心机的螺旋卸料器构造设计不合理， 固液分离效果差的问题。 亦经过数次试 验试用结果表明， 它与现有技术相比， 具有结构简单实用， 固液分离效果好， 也适于石油钻井废弃岩屑的液体回收处理， 应用范围广， 使用方便等有益效果， 适于配装各型的螺旋卸料过滤离心机， 应用于化工、 煤炭、 食品、 石油开采等 行业。
附图说明
下面结合附图和实施例对本发明作进一步详细描述。
图 1是本发明实施例的结构简图。
图 2是图 1实施例中螺旋卸料器主体的放大结构简图。
图 3是图 2中 A-A向放大剖视图。
附图中各标号为： 1螺栓； 2螺旋卸料器顶盖； 3密封垫片； 4螺旋卸料器 的锥套； 5主叶片； 6副叶片； 7锥衬套； 8挡板； 9 浮动叶片； 10浮动叶片压 板； 11螺钉； C浮动叶片压板 6和浮动叶片 5之间的间隙。
具体实施方式
如附图 1所示实施例， 本发明设有： 螺旋卸料器主体、 螺旋卸料器顶盖 2、 密封垫片 3、 锥衬套 7， 螺旋卸料器主体是由锥套 4的外体上装连有 8个主叶片 5和 4个副叶片 6， 在主叶片 5和副叶片 6之间固定连接有挡板 8， 并在副叶片 6外侧面上装设有 20个浮动叶片 9所组成， 螺旋卸料器主体的锥套 4内套连锥 衬套 7，螺旋卸料器主体的锥套 4和锥衬套 7顶部加装密封垫片 3后装连螺旋卸 料器顶盖 2并由螺栓 1连接固定； 副叶片 6外侧面上开制有开口凹槽， 在副叶 片的凹槽内分别装设有 20个浮动叶片 9， 并在对应副叶片 6凹槽口部配合连接 浮动叶片 9装连有浮动叶片压板 10并有螺钉 11连接固定。 参见附图 2-图 3实施例， 本发明的浮动叶片压板 10的外侧边缘制有凸台边 缘， 浮动叶片 9 的内侧边缘制有与浮动叶片压板的外侧凸台边缘相对配合连接 的凸台， 浮动叶片压板 6和浮动叶片 5之间留有间隙 C, 这样， 每一片浮动叶片 均能在设定范围内单独活动。
参照附图 1-图 2实施例， 本发明的螺旋卸料器顶盖 2的顶部制有 4个均布 的离心泵叶轮状拨料叶片。 主叶片 5和副叶片 6呈相同的角度安装在锥套 4上， 并且主叶片 5和副叶片 6的下部向左或者向右倾斜的角度为 10-20° 。主叶片和 副叶片的下部向右倾斜 13 ° 安装在锥套的外体上。 主叶片的数目为偶数个， 每 两个主叶片为一组， 每组主叶片之间设置有一个副叶片。
使用时， 将本发明的螺旋卸料器按设计要求， 装配到螺旋卸料过滤离心机 的动力轴上， 外部配装锥形筛网。 其工作原理是： 作业时螺旋卸料过滤离心机 的动力轴带动螺旋卸料器旋转， 物料进入到螺旋卸料器顶盖上之后， 首先会被 螺旋卸料器顶盖上的离心泵叶轮状拨料器充分加速， 可有效地避免了由于加速 不充分造成的物料直接顺锥套外表面流走跑料的问题； 通过螺旋卸料器顶盖上 的离心泵叶轮状拨料器充分加速， 将进入螺旋卸料器的物料被甩到锥形筛网的 内壁上， 由于螺旋卸料器主体上装有挡板遮挡， 物料不会进入主叶片和副叶片 之间的区域， 而只会进入其它区域， 在这里物料中的液相会由于离心力作用被 甩出分离， 一部分固相物料会被主叶片刮下， 物料螺旋下行的同时继续进行离 心脱液， 因为主叶片和锥形筛网之间存在间隙， 会有一薄层物料残留在锥形筛 网的内壁； 但由于副叶片上装设有浮动叶片， 且每一片浮动叶片都可以单独活 动， 即使锥形筛网存在形状偏差， 浮动叶片能自动适应锥形筛网内壁的形状， 始终紧贴着锥形筛网的内壁运动， 因此， 将主叶片刮后残留在锥形筛网内壁的 一薄层固相物料， 就会被始终紧贴锥形筛网内壁的浮动叶片刮下， 从而使锥形 筛网保持网孔通畅， 固液分离效果好。
本发明不局限于上述的优选实施方式， 任何人应该得知在本发明的启示下 做出的结构变化， 凡是与本发明具有相同或者相近似的技术方案， 均属于本发 明的保护范围。

Claims

权 利 要 求 书
1、 一种螺旋卸料过滤离心机的螺旋卸料器， 它设有卸料器主体、 螺旋卸料 器顶盖， 其特征在于， 还设有锥衬套 （7)、 密封垫片 （3 )， 螺旋卸料器主体是 由锥套 （4) 的外体上装连有数个主叶片 （5 ) 和副叶片 （6)， 在主叶片 （5 )和 副叶片 （6) 之间固定连接有挡板 （8)， 并在副叶片 （6) 外侧面上装设有数个 浮动叶片 （9) 所组成， 螺旋卸料器主体的锥套 （4) 内套连锥衬套 （7)， 螺旋 卸料器主体的锥套 （4) 和锥衬套 （7)顶部加装密封垫片 （3 ) 后装连螺旋卸料 器顶盖并由螺栓 （1 ) 连接固定。
2、根据权利要求 1所述的螺旋卸料过滤离心机的螺旋卸料器，其特征在于， 螺旋卸料器主体的副叶片 （6)外侧面上开制有开口凹槽并在凹槽内分别装设有 数个浮动叶片 （9)， 并在对应副叶片 （6 ) 凹槽口部配合连接浮动叶片 （9 ) 装 连有浮动叶片压板 （10)。
3、根据权利要求 2所述的螺旋卸料过滤离心机的螺旋卸料器，其特征在于， 浮动叶片压板 （10) 的外侧边缘制有凸台边缘， 浮动叶片 （9) 的内侧边缘制有 与浮动叶片压板的外侧凸台边缘相对配合连接的凸台。
4、根据权利要求 1所述的螺旋卸料过滤离心机的螺旋卸料器，其特征在于， 螺旋卸料器顶盖 （2) 的顶部制有 3-6个均布的离心泵叶轮状拨料叶片。
5、根据权利要求 1所述的螺旋卸料过滤离心机的螺旋卸料器，其特征在于， 主叶片 （5 ) 和副叶片 （6) 呈相同的角度安装在锥套 （4)上， 并且主叶片 （5 ) 和副叶片 （6) 的下部向左或者向右倾斜的角度为 10-20° 。
6、根据权利要求 5所述的螺旋卸料过滤离心机的螺旋卸料器，其特征在于， 主叶片 （5 ) 和副叶片 （6) 的下部向右倾斜 13 ° 安装在锥套 （4) 的外体上。
7、根据权利要求 5所述的螺旋卸料过滤离心机的螺旋卸料器，其特征在于， 主叶片 （5 ) 的数目为偶数个， 每两个主叶片 （5 ) 为一组， 每组主叶片 （5 )之 间设置有一个副叶片 （6)
PCT/CN2013/075917 2012-05-31 2013-05-20 螺旋卸料过滤离心机的螺旋卸料器 WO2013178024A1 (zh)

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