WO2012129833A1 - 往返式振动筛 - Google Patents

往返式振动筛 Download PDF

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Publication number
WO2012129833A1
WO2012129833A1 PCT/CN2011/074702 CN2011074702W WO2012129833A1 WO 2012129833 A1 WO2012129833 A1 WO 2012129833A1 CN 2011074702 W CN2011074702 W CN 2011074702W WO 2012129833 A1 WO2012129833 A1 WO 2012129833A1
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WO
WIPO (PCT)
Prior art keywords
plate
vibrating screen
sieve
sieve plate
outer casing
Prior art date
Application number
PCT/CN2011/074702
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English (en)
French (fr)
Inventor
何正凯
郭宏武
Original Assignee
合肥水泥研究设计院
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Publication of WO2012129833A1 publication Critical patent/WO2012129833A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/40—Resonant vibration screens

Definitions

  • the present invention generally relates to a vibratory screening apparatus, and more particularly to a reciprocating vibrating screen for classifying materials containing fine powder. Background technique
  • the material to be screened has no one-way movement obliquely downward except for the vibration accompanying the main machine, and there is no other reciprocating motion in either the horizontal direction or the vertical direction.
  • the wear-resisting treatment of the sieve plate is very difficult.
  • the passing rate of the sieve plate must be reduced.
  • the area of the sieve plate must be greatly increased. The area will also increase simultaneously, and the process layout is very difficult.
  • the sieve plates without the wear-resistant vibrating screen have a short life and cannot be used in systems such as roll presses and vertical mills.
  • the object of the present invention is to make up for the defects of the prior art, and to provide a reciprocating vibrating screen which can not only reduce the passage rate of the wear-resistant treatment by increasing the area of the sieve plate, but also ensures the screening efficiency.
  • a reciprocating vibrating screen comprising: a resilient bracket, wherein the elastic bracket supports an outer casing, wherein the outer casing is mounted with a vibration source; the top and bottom of the outer casing respectively have a feeding port and a coarse powder outlet
  • the outer casing is provided with two rows of matching isolation columns, and the outer sides of the two columns of isolation columns are respectively formed with a fine material cavity, and the isolation bars are respectively bent and connected by a guide plate and a sieve plate, and the two are bent.
  • a curved screening channel communicating between the inlet port and the coarse powder outlet, and a portion of the outer casing corresponding to the fine material cavity is provided with a fine powder outlet;
  • One or more locations on the upper side opposite to the flow direction of the material in the screening channel are set as sieve plates.
  • the reciprocating vibrating screen is characterized in that: the isolation bar is separated by a guide plate and a sieve plate respectively The distribution and the end-to-end connection are in a multi-layered shape, and the sieve plate is arranged as a surface that slides between the two columns of the separation bar, the guide plate is disposed between the adjacent two sieve plates, or in the last sieve After the plate, it is guided by the fine material passing through the sieve.
  • the reciprocating vibrating screen is characterized in that: the sieve plate is an open or slotted steel plate, and the steel plate is a cold rolled plate, a cast plate or a composite plate.
  • the invention relates to a reciprocating vibrating screen, characterized in that: the sieve plate is spliced or fabricated by strip steel.
  • the invention relates to a reciprocating vibrating screen, characterized in that: the sieve plate or the guide plate is made of a single block or a plurality of small pieces.
  • the sieve plate and the guide plate are inclined with the flower arrangement, and the screening channels which are connected end to end are formed into a meandering shape, so that the material to be sieved has a vibration on the horizontal projection surface in addition to the vibration accompanying the host. Extra obvious reciprocating movement.
  • the material to be sieved is fed into the reciprocating vibrating screen of the present invention from the feeding port, under the action of gravity, it slides to the sieve plate, and the outer casing vibrates continuously under the excitation of the vibration source to drive the main body and the sieve plate to vibrate, prompting to be
  • the sieving material continues to slide down on the sieve plate, slipping from the upper sieve plate to the next sieve plate until it slid to the last sieve plate.
  • the fine powder passes through the sieve plate and leaves the screening channel.
  • the guide plate is guided and the outer casing is collected.
  • the vibrating sieve is discharged from the fine powder outlet and sent to the next process.
  • the coarse powder cannot pass through the sieve plate, slide down the sieve plate step by step, and finally discharge the vibrating sieve from the coarse powder outlet, and return to the vertical mill or the roller press to re-pulverize.
  • the invention can be implemented by the following steps:
  • the sieve plate which is an important component of the present invention, can be made of either an open-hole steel plate or a slotted steel plate, or a steel wire or a steel strip, or can be spliced with strips of various cross-section shapes, each sieve plate.
  • the guide plate which may be a single piece or a plurality of pieces.
  • the steel plate here may be a cold-rolled plate, a cast plate, or a composite steel plate, and the surface of the sieve plate needs to be worn. .
  • the invention adopts the upper and lower three-dimensional arrangement of the sieve plates, which not only increases the sieve plate area, but also offsets the reduction rate of the wear resistance treatment of the sieve plates, ensures the screening efficiency, and at the same time limits the increase of the vibration sieve floor space. , convenient process layout.
  • the invention is suitable for screening materials containing fine powder, thereby creating conditions for subsequent processing, and can be widely applied to powder preparation occasions in building materials, chemical industry, metallurgy, mining and other industries, and is particularly suitable for selecting roller presses and standings. Grinding is used as a system for pre-grinding or final grinding.
  • FIG. 1 is a schematic structural view of a reciprocating vibrating screen of the present invention.
  • FIG. 2 is a schematic structural view of a perforated sieve plate of a reciprocating vibrating screen of the present invention.
  • FIG. 3 is a schematic view showing the structure of the slotted sieve plate of the reciprocating vibrating screen of the present invention. DETAILED DESCRIPTION OF THE INVENTION Referring to the drawings.
  • a reciprocating vibrating screen includes a resilient bracket 7, and the elastic bracket 7 supports a hollow outer casing 4.
  • a vibration source 8 is mounted on the outer casing 4 for providing a source of exciting vibration.
  • the top of the outer casing 4 is provided with a feed port 1 for feeding the material to be sieved to the reciprocating vibrating screen.
  • the bottom of the outer casing 4 is provided with a coarse powder outlet 5 for discharging the coarse powder which cannot be sieved out of the vibrating screen and returning to the upper treatment process.
  • the sieve plate 2 and the guide plate 3 are inclined with the flower arrangement, and the first and last ends are joined together to form two rows of zigzag isolation bars, and the two sets of isolation bars are formed with a sieve.
  • the outer sides of the two sets of isolation bars are respectively formed with a fine material chamber 10, the sieve plate 2 is used for simulating the screening of coarse and fine powdery materials, and the guide plate 3 is for isolating the fine powder that is sieved, and On the one hand, in cooperation with the adjacent portion of the outer casing 4, the guiding and collecting of the fine powder is completed.
  • a fine powder outlet 6 is opened at the bottom of each fine material chamber 10 for discharging the sieved fine powder out of the vibrating screen and feeding it to the next stage of the treatment process.
  • the vibration source 8 provides the source of the exciting vibration force and the elastic bracket 7, the outer casing 4 and the inner sieve plate 2 and the guide plate 3 are synchronously vibrated by the vibration source 8.
  • the vibration source 8 provides the source of the exciting vibration force and the elastic bracket 7, the outer casing 4 and the inner sieve plate 2 and the guide plate 3 are synchronously vibrated by the vibration source 8.
  • the coarse powder that cannot pass through the sieve plate 2 carries a part of the fine powder that has not passed through the sieve plate 2, and under the action of the synchronous exciting force transmitted from the sieve plate 2, continues to slide down and falls to the next level. Screen 2, continue to screen.
  • the sieved material slips out of the last stage sieve, it is treated as a coarse powder, which is discharged from the coarse powder outlet 5 and returned to the upper stage treatment process.
  • the reciprocating vibrating screen allows the trajectory of the material to be screened on the horizontal projection surface, in addition to the vibration accompanying the main machine, there is an additional significant reciprocating motion, and the sieve plate 2 is arranged three-dimensionally to increase the area of the sieve plate 2 , but not much increase the footprint of the host.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Description

往返式振动筛 技术领域
本发明主要涉及一种振动筛分设备， 具体涉及一种往返式振动筛， 它用于对含有 细粉的物料进行分级。 背景技术
现有技术可参阅中国建筑工业出版社 1994 年 11 月出版的、 书号为 ISBN7-80090-342-7/TH-12的 《粉碎工程及设备》 第四篇第二章第 3节的 "振动筛的 基本原理"， 第 4节的 "直线运动振动筛"， 第 5节的 "圆和椭圆运动振动筛"， 以及 第 6节的 "概率筛"。
在现有的振动筛上， 被筛分的物料除了有伴随主机的振动之外， 只有倾斜向下的 单向运动， 无论是水平方向还是竖直方向， 都不再有其他的往返式运动。现有的振动 筛， 筛板的耐磨处理十分困难， 要进行耐磨处理必须降低筛板的通过率， 这时候要想 保证筛分效率， 就必须大大增加筛板的面积， 筛体的占地面积也就会同步增加， 工艺 布置十分困难。 而没有做耐磨处理的振动筛的筛板寿命短， 无法应用在辊压机、立式 磨等系统中。 发明内容 本发明目的就是为了弥补已有技术的缺陷， 提供一种往返式振动筛， 它既能通过 增加筛板的面积， 抵消因耐磨处理而降低的通过率， 来保证筛分效率， 又通过立体设 置筛板， 来限制筛体占地面积的过度增加， 方便工艺布置。
本发明是通过以下技术方案实现的：
一种往返式振动筛， 其特征在于： 包括有弹性支架， 所述弹性支架上支撑有外壳 体， 外壳体上安装有振动源； 外壳体的顶部和底部分别开有进料口和粗粉出口， 所述 外壳体内设有两列匹配的隔离栏，两列隔离栏的外侧分别形成有细料腔，所述隔离栏 分别是由导料板和筛板首尾连接呈弯折形，所述两组隔离栏之间形成有连通于进料口 和粗粉出口之间的呈弯折形的筛分通道，所述外壳体底部对应细料腔的部位设有细粉 出口； 所述的隔离栏上与筛分通道内物料流向相对的一个或多个部位设为筛板。
所述的一种往返式振动筛， 其特征在于： 所述隔离栏分别是由导料板和筛板间隔 分布并首尾连接呈多层弯折形， 筛板设置成两列隔离栏之间的物料下溜时滑过的面， 导料板设置在相邻两块筛板之间， 或者在最后一块筛板之后， 为穿过筛板的细物料导 向。
所述的一种往返式振动筛， 其特征在于： 所述筛板为开孔或开槽的钢板， 所述钢 板为冷轧板、 铸造板或复合板。
所述的一种往返式振动筛， 其特征在于： 所述的筛板为长条钢拼接或编制而成。 所述的一种往返式振动筛， 其特征在于： 所述筛板或导料板为整块或由若干小块 拼接而成。
所述筛板和导料板倾斜着插花布置， 首尾相接而成的筛分通道， 成曲折形状， 使 被筛分的物料除了有伴随主机的振动之外，在水平投影面上，还有额外的明显的往返 式运动。
待筛分物料从进料口喂入本发明往返式振动筛后， 在重力作用下， 溜到筛板， 外 壳体在振动源的激振下， 连续振动， 带动主机及筛板振动， 促使待筛分物料在筛板上 继续下溜， 从上一层筛板溜到下一层筛板， 直至溜到最后一层筛板。在物料不断下溜 过程中， 细粉穿过筛板脱离筛分通道， 由导料板导向、 外壳体汇集， 做为合格品， 从 细粉出口排出振动筛， 送到下一道工序。 粗粉不能穿过筛板， 沿着筛板逐级下溜， 最 后从粗粉出口排出振动筛， 返回立式磨或辊压机重新粉碎。
本发明可以通过如下步骤实施：
作为本发明的重要部件的筛板， 既可以用开孔的钢板， 也可以用开槽的钢板， 或 者用钢丝或钢条编制， 还可以用各种截面形状的条钢拼接， 每层筛板及导料板， 可以 是单块， 也可以由多块拼接而成， 这里的钢板可以是冷轧板， 也可以是铸造板， 还可 以是复合钢板， 筛板上表面需要做耐磨损处理。
本发明的优点是：
本发明通过上下立体的设置筛板， 既增加了筛板面积， 从而抵消了对筛板的耐磨 处理而降低的通过率， 保证了筛分效率， 同时又限制了振动筛占地面积的增加， 方便 工艺布置。
本发明适用于对含有细粉的物料进行筛分， 从而为后续处理工艺创造条件， 可广 泛应用于建材、 化工、 冶金、 矿山等行业的粉体制备场合， 尤其适用于选用辊压机、 立式磨做为预粉碎或终粉磨的系统中。 附图说明
图 1为本发明往返式振动筛的结构示意图。
图 2为本发明往返式振动筛的开孔筛板的结构示意图。
图 3为本发明往返式振动筛的开槽筛板的结构示意图。 具体实施方式 参见附图。
一种往返振动筛， 包括有弹性支架 7， 弹性支架 7上支撑有空心的外壳体 4。 外 壳体 4上安装有振动源 8， 用来提供激振动力源。 外壳体 4的顶部开设有进料口 1， 用于向往返振动筛喂入待筛分物料。 外壳体 4的底部开设有粗粉出口 5， 用于将不能 筛出的粗粉排出振动筛， 返回上一级处理工艺。在进料口 1和粗粉出口 5之间， 由筛 板 2和导料板 3 倾斜着插花布置， 首尾相接， 拼成两列曲折的隔离栏， 两组隔离栏 之间形成有筛分通道 9，两组隔离栏的外侧分别形成有细料腔 10， 筛板 2用于完成对 粗、 细粉状物料的筛分， 导料板 3—方面对筛出的细粉进行隔离， 另一方面又与外壳 体 4 的临近部分合作， 完成对细粉的导向和收集。 每个细料腔 10的底部都开设有细 粉出口 6， 用于将筛出的细粉排出振动筛， 送入下一级处理工艺。
由于振动源 8提供了激振动力源以及弹性支架 7的作用，外壳体 4及其内部的筛 板 2和导料板 3均在振动源 8的带动下同步振动。当待筛分的物料从进料口 1喂入振 动筛后，在重力的作用下落入筛板 2的上表面，部分细粉穿过筛板 2，进入细粉腔 10， 在导料板 3的作用下远离筛分通道 9， 由外壳体 4完成收集， 落入细粉出口 6， 排出 振动筛， 送入下一道处理工艺。 不能穿过筛板 2的粗粉， 携带着一部分没有来得及穿 过筛板 2的细粉， 在筛板 2传递过来的同步激振力的作用下， 继续向下溜动， 落入下 一级的筛板 2， 继续筛分。 当被筛分的物料溜出最后一级筛板后， 就被当成粗粉， 由 粗粉出口 5排出振动筛， 返回上一级处理工艺。
所述往返振动筛让待筛分物料在水平投影面上的运动轨迹，除了有伴随主机的振 动之外， 还有额外的明显的往返运动， 通过立体设置筛板 2， 既增加筛板 2面积， 又 不过多增加主机的占地面积。

Claims

权 利 要 求 书
1. 一种往返式振动筛， 其特征在于： 包括有弹性支架， 所述弹性支架上支 撑有外壳体， 外壳体上安装有振动源； 外壳体的顶部和底部分别开有进料口和粗 粉出口， 所述外壳体内设有两列匹配的隔离栏， 两列隔离栏的外侧分别形成有细 料腔， 所述隔离栏分别是由导料板和筛板首尾连接呈弯折形， 所述两组隔离栏之 间形成有连通于进料口和粗粉出口之间的呈弯折形的筛分通道，所述外壳体底部 对应细料腔的部位设有细粉出口；所述隔离栏上与筛分通道内物料流向相对的一 个或多个部位设为筛板。
2. 根据权利要求 1 所述的一种往返式振动筛， 其特征在于： 所述隔离栏分 别是由导料板和筛板间隔分布并首尾连接呈多层弯折形，筛板设置成两列隔离栏 之间的物料下溜时滑过的面， 而导料板设置在相邻两块筛板之间， 或者在最后一 块筛板之后， 为穿过筛板的细物料导向。
3. 根据权利要求 1 所述的一种往返式振动筛， 其特征在于： 所述筛板为开 孔或开槽的钢板， 所述钢板为冷轧板、 铸造板或复合板。
4. 根据权利要求 1 所述的一种往返式振动筛， 其特征在于： 所述的筛板为 长条钢拼接或编制而成。
5. 根据权利要求 1 所述的一种往返式振动筛， 其特征在于： 所述筛板或导 料板为整块或由若干小块拼接而成。
PCT/CN2011/074702 2011-03-31 2011-05-26 往返式振动筛 WO2012129833A1 (zh)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874219B (zh) * 2015-05-05 2016-09-21 昆明理工大学 一种振动式挂折筛
CN106000618B (zh) * 2016-07-02 2019-04-09 云南科力新材料股份有限公司 一种流态化立式筛分设备
CN106907733A (zh) * 2017-03-28 2017-06-30 林娟娟 一种往返式分层抛洒的锅炉煤粉进料装置
CN107670967A (zh) * 2017-10-31 2018-02-09 广东电网有限责任公司电力科学研究院 一种高温煤渣分级筛选及余热回收装置
CN108620186B (zh) * 2018-04-14 2019-12-06 王永 一种钢板双面开槽呈孔的粉碎机筛片

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1450886A1 (ru) * 1987-01-19 1989-01-15 Воронежский технологический институт Классификатор сыпучих материалов
AU2415488A (en) * 1987-10-26 1989-04-27 Delmas Leon Venable Apparatus for screening grain or the like
CN1432437A (zh) * 2002-01-18 2003-07-30 孙功民 一种振动筛少占用地的方法及振动筛
CN2834710Y (zh) * 2005-08-27 2006-11-08 冯国忠 一种立式玉米振动筛选机
CN201711289U (zh) * 2010-06-23 2011-01-19 济南万方炭素有限责任公司 立式粉尘分离器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2035279U (zh) * 1988-09-12 1989-04-05 东北工学院 多重作用的惯性共振式概率筛
CN201102015Y (zh) * 2007-10-18 2008-08-20 刘怀平 泻落式选粉机
CN101402087B (zh) * 2008-11-24 2011-10-26 济南中燃科技发展有限公司 利用筛分物料下落能量的反击筛分方法及反击筛
CN201969681U (zh) * 2011-03-31 2011-09-14 合肥水泥研究设计院 一种往返式振动筛

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1450886A1 (ru) * 1987-01-19 1989-01-15 Воронежский технологический институт Классификатор сыпучих материалов
AU2415488A (en) * 1987-10-26 1989-04-27 Delmas Leon Venable Apparatus for screening grain or the like
CN1432437A (zh) * 2002-01-18 2003-07-30 孙功民 一种振动筛少占用地的方法及振动筛
CN2834710Y (zh) * 2005-08-27 2006-11-08 冯国忠 一种立式玉米振动筛选机
CN201711289U (zh) * 2010-06-23 2011-01-19 济南万方炭素有限责任公司 立式粉尘分离器

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