CN104353608B - Whirling vibration screening machine - Google Patents

Whirling vibration screening machine Download PDF

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CN104353608B
CN104353608B CN201410641747.5A CN201410641747A CN104353608B CN 104353608 B CN104353608 B CN 104353608B CN 201410641747 A CN201410641747 A CN 201410641747A CN 104353608 B CN104353608 B CN 104353608B
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screening
rotating shaft
sieve
screen
group
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CN104353608A (en
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朱宏政
刘令云
朱金波
闵凡飞
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663Multi-layer screening surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B2201/00Details applicable to machines for screening using sieves or gratings
    • B07B2201/04Multiple deck screening devices comprising one or more superimposed screens

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  • Combined Means For Separation Of Solids (AREA)

Abstract

本发明涉及一种旋转振动筛分机,该旋转振动筛分机包括筒状的筛箱,本筛分机还包括:旋转机构,该旋转机构包括转轴以及驱动转轴转动的驱动机构,所述转轴可转动地设置在弹性支架上,所述筛箱套设固定在转轴上;带动弹性支架振动的振动机构;多级筛分机构,包括多级自上而下均呈倾斜状设置的筛分组,此多级筛分组固定设置在筛箱和转轴之间;多级筛分组中的筛孔直径自上而下逐渐减小;各级筛分组向下倾斜的末端处分别设有与筛上物和筛下物对应的排料口;所述筛箱的上端设有将物料均匀散布在处于最高位置处的筛分组的上端面的进料口。本发明结构简单,可以根据生产需要进行多级筛分,有效地提高生产效率和筛分颗粒的均匀度,降低生产成本。

The invention relates to a rotary vibrating screening machine, which includes a cylindrical screen box. The screening machine also includes: a rotating mechanism, which includes a rotating shaft and a driving mechanism for driving the rotating shaft. The rotating shaft is rotatably Set on the elastic support, the screen box is set and fixed on the rotating shaft; the vibration mechanism that drives the elastic support to vibrate; the multi-stage screening mechanism, including multi-stage screening groups that are inclined from top to bottom. The screening group is fixed between the screen box and the rotating shaft; the diameter of the sieve holes in the multi-stage screening group decreases gradually from top to bottom; the downward-sloping ends of the screening groups at all levels are respectively equipped with screens for the oversize and undersize. Corresponding discharge port; the upper end of the screen box is provided with a feed port for evenly spreading the material on the upper end surface of the screen group at the highest position. The invention has a simple structure, can carry out multi-stage screening according to production needs, effectively improves production efficiency and uniformity of screened particles, and reduces production cost.

Description

旋转振动筛分机Rotary Vibrating Screening Machine

技术领域technical field

本发明涉及固体物料筛分机械,尤其涉及一种旋转振动筛分机。The invention relates to a solid material screening machine, in particular to a rotary vibration screening machine.

背景技术Background technique

筛分机是利用散粒物料与筛面的相对运动,使部分颗粒透过筛孔,将砂、砾石、碎石等物料按颗粒大小分成不同级别的振动筛分机械设备。在筛分的过程中,物料中粒度小于筛孔尺寸的颗粒穿过筛面落到筛下的,称为筛下物。粒度大于筛孔尺寸的颗粒留在筛上,称为筛上物。分级筛广泛应用于各类颗粒、小块状、粉体等物料的筛分,适应性广,是耐火材料、页岩、煤矸石、煤炭、水泥、砂石、粮食、化肥等物料分级常用的设备。The screening machine is a vibrating screening mechanical equipment that uses the relative movement between the bulk material and the screen surface to make some particles pass through the screen holes, and divide sand, gravel, crushed stone and other materials into different grades according to the particle size. During the sieving process, the particles in the material whose particle size is smaller than the sieve size pass through the sieve surface and fall under the sieve, which is called undersize. Particles with a particle size larger than the sieve size remain on the sieve and are called oversize. Classifying sieves are widely used in the screening of various particles, small blocks, powders and other materials, and have wide adaptability. equipment.

现有的振动式筛分机械设备包括振动轴,振动轴上弹性连接有筛板,筛板上装有振动电机,通过振动电机的震动使筛板上产生抖动,从而实现物料的筛分。由于振动电机的振动频率过于频繁,对于颗粒粒度差别较大的物料进行筛分时存在筛分效率低的缺点,并且只能进行单次分离,生产效率低。后续虽有一系列对其作出的改进,比如设置多个筛分机通过皮带输送机并联(中国专利文献CN103316842A),但是其占地面积大、投资大,造成生产成本增高;设计成圆筒状的具有多级过滤区的多级旋转分级筛(中国专利文献CN202490762U)则由于物料自身的重力作用增加了电动机的工作载荷;而具有复杂连接结构的多级筛分精细筛选机中(中国专利文献CN103623995A)则会使得维护费用增大,增加投资成本。Existing vibratory screening mechanical equipment includes a vibrating shaft, on which a sieve plate is elastically connected, and a vibrating motor is installed on the sieve plate, and the vibration of the vibrating motor causes the sieve plate to vibrate, thereby realizing the screening of materials. Because the vibration frequency of the vibrating motor is too frequent, there is a disadvantage of low screening efficiency when screening materials with large particle size differences, and only a single separation can be performed, resulting in low production efficiency. Although there are a series of improvements made to it in the follow-up, such as setting a plurality of screening machines in parallel through belt conveyors (Chinese patent document CN103316842A), but its floor area is large, the investment is large, and the production cost is increased; it is designed to be cylindrical. The multistage rotary grading screen in the multistage filter area (Chinese patent document CN202490762U) then increases the working load of the motor due to the gravity effect of the material itself; It will increase the maintenance cost and increase the investment cost.

因此,如何在不影响筛分效率的前提下提供一种结构简单,耗能和维护成本低的多级筛分机成为本领域技术人员亟需解决的问题。Therefore, how to provide a multi-stage screening machine with simple structure, low energy consumption and low maintenance cost without affecting the screening efficiency has become an urgent problem to be solved by those skilled in the art.

发明内容Contents of the invention

针对上述的不足,本发明要解决的技术问题是提供一种筛分效率高、结构简单、耗能且维护成本低的旋转振动筛分机。In view of the above shortcomings, the technical problem to be solved by the present invention is to provide a rotary vibration screening machine with high screening efficiency, simple structure, energy consumption and low maintenance cost.

为了实现上述目的,本发明通过以下技术方案实现:In order to achieve the above object, the present invention is achieved through the following technical solutions:

一种旋转振动筛分机,包括一个筒状的筛箱,本筛分机还包括如下组成部分:A rotary vibration screening machine, including a cylindrical screen box, the screening machine also includes the following components:

旋转机构,该旋转机构包括转轴以及驱动转轴转动的驱动机构,所述转轴可转动地设置在弹性支架上,所述筛箱套设固定在转轴上;A rotating mechanism, the rotating mechanism includes a rotating shaft and a driving mechanism for driving the rotating shaft to rotate, the rotating shaft is rotatably arranged on the elastic support, and the screen box is sleeved and fixed on the rotating shaft;

本筛分机还包括带动弹性支架振动的振动机构;The screening machine also includes a vibration mechanism that drives the elastic support to vibrate;

多级筛分机构,包括多级自上而下均呈倾斜状设置的筛分组,此多级筛分组固定设置在筛箱和转轴之间;处于最高位置处的筛分组自靠近转轴一侧向靠近筛箱一侧逐渐斜向下倾斜,且相邻筛分组的倾斜方向相反;除处于最低位置的筛分组之外的其他筛分组在其倾斜方向的最低端处均设置有将筛上物排出筛箱的出料口和将筛下物排出至下一级筛分组的落料口,处于最低位置的筛分组在其倾斜方向的最低端处设置有将筛上物和筛下物分别排出筛箱的出料口;多级筛分组中的筛孔直径自上而下逐渐减小;Multi-stage screening mechanism, including multi-stage screening groups that are inclined from top to bottom, this multi-stage screening group is fixed between the screen box and the rotating shaft; the screening group at the highest position is from the side near the rotating shaft The side close to the screen box is gradually inclined downward, and the inclination direction of the adjacent sieve groups is opposite; other sieve groups except the sieve group at the lowest position are all equipped with a device at the lowest end of the inclination direction to discharge the oversize. The outlet of the sieve box and the discharge port for discharging the undersize to the next stage of the screening group, the lowest position of the screening group is provided with a sieve at the lowest end of the inclination direction to discharge the oversize and the undersize respectively. The outlet of the box; the diameter of the sieve holes in the multi-stage sieve group decreases gradually from top to bottom;

所述筛箱的上端设有将物料均匀散布在处于最高位置处的筛分组的上端面的进料口。The upper end of the sieve box is provided with a feed port for evenly spreading the material on the upper end surface of the sieve group at the highest position.

前述多级筛分机构为n级,n为大于1的正整数。The aforementioned multi-stage screening mechanism has n stages, and n is a positive integer greater than 1.

优选的,任意一级筛分组均由带有网孔的筛板和隔板构成,所述隔板设置在同级筛分组的筛板的下方,且隔板的板面与筛板的板面相平行。Preferably, any primary screening group is composed of a sieve plate with a mesh and a partition, the partition is arranged below the sieve plate of the same level of screening group, and the plate surface of the partition plate is the same as the plate surface of the sieve plate. parallel.

优选的,所述进料口的上侧设有向进料口处的物料喷水的环状喷水器;所述环状喷水器套设固定在转轴上。Preferably, the upper side of the feed inlet is provided with an annular sprinkler for spraying water on the material at the feed inlet; the annular sprinkler is sheathed and fixed on the rotating shaft.

进一步的,所述筛板有带有网孔的筛网和筛架构成,所述筛网设置在筛架的上侧。Further, the sieve plate is composed of a sieve with meshes and a sieve frame, and the sieve is arranged on the upper side of the sieve frame.

进一步的,所述筛板的倾斜角度为10°~25°。Further, the inclination angle of the sieve plate is 10°-25°.

进一步的,所述隔板的朝向筛板的上表面设置为便于物料下滑的光滑面。Further, the upper surface of the partition facing the sieve plate is set as a smooth surface that facilitates the sliding of materials.

进一步的,所述弹性支架包括弹性支撑组件以及用于支撑转轴并与转轴构成转动配合的支架,所述支架通过弹性支撑组件固定在底座上;所述筛箱和支架相配合构成将多级筛分机构围合于其中的封闭空间。Further, the elastic support includes an elastic support assembly and a support for supporting the rotating shaft and forming a rotation fit with the rotating shaft. The support is fixed on the base through the elastic support assembly; the screen box and the support cooperate to form a multi-stage screen An enclosed space within which a sub-organization is enclosed.

进一步的,所述振动机构包括固定在底座之上的振动电机和偏心组件;所述偏心组件固定在支架上并与支架构成转动配合,所述振动电机通过皮带驱动偏心组件转动。进一步的,所述给料盘的正对上方安有环状喷水器。Further, the vibration mechanism includes a vibration motor and an eccentric assembly fixed on the base; the eccentric assembly is fixed on the support and forms a rotational cooperation with the support, and the vibration motor drives the eccentric assembly to rotate through a belt. Further, an annular sprinkler is installed directly above the feeding pan.

进一步的,所述偏心组件包括空心的圆筒和重块;所述重块固定在圆筒的内侧壁面上;所述振动电机通过皮带驱动所述圆筒转动。Further, the eccentric assembly includes a hollow cylinder and a weight; the weight is fixed on the inner wall of the cylinder; the vibration motor drives the cylinder to rotate through a belt.

进一步的,所述旋转机构中的驱动机构包括旋转电机;所述旋转电机通过皮带驱动转轴转动。Further, the driving mechanism in the rotating mechanism includes a rotating motor; the rotating motor drives the rotating shaft to rotate through a belt.

本发明的有益效果在于:The beneficial effects of the present invention are:

1)、本发明中的筛板组设有多个具有不同孔径的筛网,可完成多种粒度的筛分,从而可以大大提高生产效率。1) The sieve plate group in the present invention is provided with a plurality of screens with different apertures, which can complete the screening of various particle sizes, thereby greatly improving production efficiency.

多级筛分组固定设置在筛箱和转轴之间,且自上而下均呈倾斜状设置,其中处于最高位置处的第一级筛分组自靠近转轴一侧向靠近筛箱一侧逐渐斜向下倾斜,而相邻的第二级筛分组的倾斜方向则相反,自靠近筛箱一侧向靠近转轴一侧逐渐斜向下倾斜;第一级筛分组中筛板的筛上物直接排出在筛箱的外侧,第一级筛分组中,自筛板落入隔板的筛下物在随着筛箱振动的过程中下滑至隔板的倾斜末端,并落入第二级筛分组的筛板上,进入第二级筛分过程;同样第二级筛分组中落入隔板的筛下物在随着筛箱振动的过程中下滑至隔板末端并正好落入第三级筛分组的筛板上,进入第三级筛分过程,接着,以此方式连续下滑,直到完成多级粒度的筛分。The multi-stage screening group is fixedly arranged between the screen box and the rotating shaft, and is arranged in an inclined shape from top to bottom. The first-stage screening group at the highest position is gradually inclined from the side close to the rotating shaft to the side close to the screen box. It is inclined downward, while the inclination direction of the adjacent second-stage screening group is opposite. It gradually slopes downward from the side close to the screen box to the side close to the rotating shaft; On the outside of the screen box, in the first-stage sieve group, the undersize material falling from the sieve plate into the partition plate slides to the inclined end of the partition plate during the vibration of the screen box, and falls into the screen of the second-stage sieve group. On the plate, it enters the second-stage screening process; similarly, the undersize material falling into the partition in the second-stage screening group slides down to the end of the partition during the vibration of the screen box and just falls into the third-stage screening group. On the sieve plate, enter the third-stage screening process, and then continue to slide down in this way until the multi-stage particle size screening is completed.

本发明的这种处于最高位置处的筛分组自靠近转轴一侧向靠近筛箱一侧逐渐斜向下倾斜,且相邻筛分组以相反方向倾斜的多级筛分机构保证了筛箱工作的连续性,确保了筛分的高效率。In the present invention, the screening group at the highest position gradually slopes downward from the side close to the rotating shaft to the side close to the screen box, and the multi-stage screening mechanism in which adjacent screening groups tilt in opposite directions ensures that the screen box works smoothly. Continuity ensures high screening efficiency.

2)、当旋转电机通过皮带驱动转轴发生转动时,转轴带动筛箱以及多级筛分机构发生旋转;此时振动电机也通过皮带驱动圆筒发生转动,圆筒的内侧壁面上固设有重块,从而当振动电机通过皮带驱动圆筒发生转动时,重块随着圆筒一起旋转,引起圆筒的跳动或振动,由于圆筒与支架固定连接,因此支架也随之产生振动;由此,旋转电机和振动电机互相配合,使得筛箱以及多级筛分机构在旋转的同时产生振动。2) When the rotating motor drives the rotating shaft to rotate through the belt, the rotating shaft drives the screen box and the multi-stage screening mechanism to rotate; at this time, the vibration motor also drives the cylinder to rotate through the belt, and the inner wall of the cylinder is fixed with a weight block, so that when the vibration motor drives the cylinder to rotate through the belt, the weight rotates with the cylinder, causing the cylinder to jump or vibrate. Since the cylinder is fixedly connected to the bracket, the bracket also vibrates accordingly; thus , The rotating motor and the vibrating motor cooperate with each other to make the screen box and the multi-stage screening mechanism vibrate while rotating.

本发明的上述结构形式大大降低了电动机的工作载荷,减小了耗能成本;此外,由于每一级筛板都在旋转的同时发生振动,从而使得物料可以沿着筛板的上表面充分分散开来,保证了筛分物料粒度沿筛板上表面分布的均匀性,提高了物料筛分的效率。The above structural form of the present invention greatly reduces the working load of the motor and reduces energy consumption costs; in addition, since each stage of the sieve plate vibrates while rotating, the materials can be fully dispersed along the upper surface of the sieve plate It ensures the uniformity of the particle size distribution of the screening material along the surface of the sieve plate, and improves the efficiency of material screening.

2)、本发明中的筛网上布满筛孔,增加了物料与筛孔的有效接触,进一步提高了生产效率;筛网下面设有筛架,可增加筛网的结构强度,确保筛网在振动的过程中能够稳定可靠的工作,提高筛网的使用寿命。隔板的上表面设为光滑面并且与筛板的板面平行,有利于使透过筛孔的筛下物落至相应隔板的上表面并迅速下滑至下一级筛分组的筛板上。2), the sieve in the present invention is covered with sieve holes, which increases the effective contact between the material and the sieve holes, and further improves the production efficiency; a sieve frame is provided below the sieve, which can increase the structural strength of the sieve, ensuring that the sieve is It can work stably and reliably during the vibration process and improve the service life of the screen. The upper surface of the partition is set to be smooth and parallel to the surface of the sieve plate, which is conducive to making the undersize that passes through the sieve holes fall to the upper surface of the corresponding partition and quickly slide down to the sieve plate of the next stage of screening group .

3)、本发明中的同一级筛分组中的筛板与隔板均设置为10°~25°的倾斜角度,在这个角度范围内,能有效地将物料的下滑速度控制在合适的范围。若倾斜角度增大,物料由于重力作用下滑速度加快,不利于物料的充分筛分;若倾斜角度过小,则会导致筛上物和筛下物的下滑速度过慢,容易引起物料的堆积,降低筛分效率。3) In the present invention, the sieve plates and partitions in the same level of screening group are all set at an inclination angle of 10° to 25°, within this angle range, the sliding speed of the material can be effectively controlled within a suitable range. If the inclination angle increases, the material will slide faster due to gravity, which is not conducive to the full screening of the material; if the inclination angle is too small, it will cause the sieve material and the sieve material to slide too slowly, which will easily cause the material to accumulate. reduce screening efficiency.

4)、本发明在进料口的上端设有环状喷水器,可以有效控制粉尘的产生,保护环境;并且在非工作状态可以通过环状喷水器对筛箱内部(包括但不限于筛板和隔板)进行有效的清洗。4), the present invention is provided with annular sprinkler at the upper end of feed inlet, can effectively control the generation of dust, protects the environment; Sieve plate and clapboard) for effective cleaning.

5)、本发明的底座与支架之间通过弹性支撑组件连接,在旋转振动筛分机的旋转振动过程中,由于弹性缓冲作用,对底座具有较好的减振效果,降低底座的负载。5) The base and the bracket of the present invention are connected by an elastic support assembly. During the rotary vibration process of the rotary vibration screening machine, due to the elastic buffering effect, the base has a better vibration damping effect and reduces the load on the base.

6)、本发明可根据不同生产场合的需要在筛箱内方便的加设更多级筛分组,而无需更换筛分机设备,从而节省了设备成本,在工业生产中具有更普遍的适用性。6) According to the needs of different production occasions, the present invention can conveniently add more screening groups in the screen box without replacing the screening machine equipment, thereby saving equipment costs and having wider applicability in industrial production.

附图说明Description of drawings

图1、2均为本发明的结构示意图。Fig. 1, 2 are structural representations of the present invention.

图3为筛网的主视图。Figure 3 is a front view of the screen.

图4为筛架的结构示意图。Figure 4 is a schematic structural view of the screen frame.

图中标记的含义如下:The meanings of the marks in the figure are as follows:

1-筛箱2-旋转电机3-转轴1-screen box 2-rotating motor 3-rotating shaft

4-轴承5-进料口6-环状喷水器4-Bearing 5-Inlet 6-Ring water sprayer

7-支架8-振动电机9-重块7-bracket 8-vibration motor 9-weight

10-圆筒11-底座12-弹性支撑组件10-cylinder 11-base 12-elastic support assembly

具体实施方式detailed description

为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明作进一步地详细描述。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

如图1所示,本实施例中的旋转振动筛分机为三级筛分机,即筛分机中含有三级筛分组。As shown in Figure 1, the rotary vibrating screening machine in this embodiment is a three-stage screening machine, that is, the screening machine contains three-stage screening groups.

转轴3可转动地固定在支架7(支架7在图1、2中并未完全画出)上,即如图1所示,转轴3与支架7之间设有轴承4,转轴3通过轴承4与支架7构成转动配合;支架7则通过弹性支撑组件12固定在底座11上。旋转电机2固定在支架7的上端,当然,旋转电机2也可以固定在其他固定座上,只要确保旋转电机2能够持续稳定可靠地驱动转轴3转动即可。The rotating shaft 3 is rotatably fixed on the support 7 (the support 7 is not completely drawn in Figs. 1 and 2), that is, as shown in Fig. It forms a rotation fit with the bracket 7; the bracket 7 is fixed on the base 11 through the elastic support component 12. The rotating motor 2 is fixed on the upper end of the bracket 7. Of course, the rotating motor 2 can also be fixed on other fixing seats, as long as it is ensured that the rotating motor 2 can continuously and reliably drive the rotating shaft 3 to rotate.

旋转电机2通过皮带与转轴3相连,此皮带套设在转轴3的最上端处,即旋转电机2通过皮带驱动转轴3转动。The rotating motor 2 is connected to the rotating shaft 3 through a belt, and the belt is sleeved on the uppermost end of the rotating shaft 3, that is, the rotating motor 2 drives the rotating shaft 3 to rotate through the belt.

多级筛分组固定设置在筛箱1和转轴3之间,对筛分组的具体描述如下:The multi-stage screening group is fixedly arranged between the screen box 1 and the rotating shaft 3. The specific description of the screening group is as follows:

第一级筛分组包括筛板S1和隔板G1,其中连续倾斜状的筛板S1的较高一端固定连接在转轴3上,而较低一端固定连接在筛箱1的内壁上,筛板S1的较低一端的末端处设有将其筛上物排出的倾斜排料口P1,而连续倾斜的隔板G1表面光滑并且与筛板S1的板面平行,隔板G1的较高一端同样固定连接在转轴3上,隔板G1较低一端的末端处设有将筛板S1的筛下物排出至第二级筛分组的排料口;The first-stage screening group includes sieve plate S1 and partition plate G1, wherein the higher end of the continuously inclined sieve plate S1 is fixedly connected to the rotating shaft 3, and the lower end is fixedly connected to the inner wall of the screen box 1. The sieve plate S1 The end of the lower end of the sieve plate is provided with an inclined discharge port P1 for discharging the sieve material, while the continuously inclined partition G1 has a smooth surface and is parallel to the plate surface of the sieve plate S1, and the higher end of the partition G1 is also fixed Connected to the rotating shaft 3, the end of the lower end of the partition G1 is provided with a discharge port for discharging the undersize of the sieve plate S1 to the second-stage sieve group;

第二级筛分组包括筛板S2和隔板G2,其中连续倾斜的筛板S2的较高一端固定连接在筛箱1内壁上,而靠近转轴3的较低一端末端处设有将筛板S2的筛上物排出的垂直排料管,所述垂直排料管套设在转轴3的外侧,且垂直排料管的通向支架7下侧的底部开口处构成垂直排料口P2;连续倾斜的隔板G2表面光滑并且与筛板S2的板面平行,隔板G2的较高一端同样固定连接在筛箱1内壁上,隔板G2的较低一端的末端处设有将筛板S2的筛下物排出至第三级筛分组的排料口;The second-stage screening group includes sieve plate S2 and partition plate G2, wherein the higher end of the continuously inclined sieve plate S2 is fixedly connected to the inner wall of the screen box 1, and the lower end of the rotating shaft 3 is provided with a sieve plate S2 The vertical discharge pipe for discharging the oversize, the vertical discharge pipe is sleeved on the outside of the rotating shaft 3, and the bottom opening of the vertical discharge pipe leading to the lower side of the support 7 forms a vertical discharge port P2; continuous inclination The surface of the partition G2 is smooth and parallel to the surface of the sieve plate S2. The higher end of the partition G2 is also fixedly connected to the inner wall of the screen box 1. The end of the lower end of the partition G2 is provided with a The undersize is discharged to the discharge port of the third stage screening group;

第三级筛分组包括筛板S3和隔板G3,其中连续倾斜的筛板S3的较高一端固定连接在第二级筛分组中的所述垂直排料管上,筛板S3的较低一端末端处设有将筛上物排出的垂直排料口P3,垂直排料口P3靠近筛箱1的内壁且朝向筛箱1的底部设置;连续倾斜的隔板G3表面光滑并且与筛板S3的板面平行,隔板G3的较高一端也固定连接在第二级筛分组中的所述垂直排料管上,隔板G3较低一端的末端处设有将筛板S3的筛下物排出的垂直排料口P4;这三组筛分组中的筛板与隔板的倾斜角度均保持在10°~25°之间。The third-stage screening group includes a sieve plate S3 and a partition G3, wherein the higher end of the continuously inclined sieve plate S3 is fixedly connected to the vertical discharge pipe in the second-stage sieving group, and the lower end of the sieve plate S3 There is a vertical discharge port P3 at the end to discharge the oversize, and the vertical discharge port P3 is set close to the inner wall of the screen box 1 and facing the bottom of the screen box 1; the continuously inclined partition G3 has a smooth surface and is in line with the screen plate S3 The plate surfaces are parallel, and the higher end of the partition G3 is also fixedly connected to the vertical discharge pipe in the second-stage screening group. The vertical discharge port P4; the inclination angles of the sieve plates and partition plates in the three sets of screening groups are kept between 10° and 25°.

因此,转轴3在转动过程中带动了以上三组筛分组的旋转,支架7则用于支撑筛箱1和转轴3而不发生转动。Therefore, the rotating shaft 3 drives the rotation of the above three sets of screening groups during the rotation process, and the bracket 7 is used to support the screen box 1 and the rotating shaft 3 without rotation.

如图1、2所示,本发明还在支架7底部设有振动机构,振动机构包括振动电机8,振动电机8与圆筒10通过皮带连接在一起,圆筒10的内侧壁面上固设有重块9,当振动电机8通过皮带驱动圆筒10发生转动时,重块9随着圆筒10一起旋转而造成圆筒10的振动,进而引起支架7的振动,从而本发明中的旋转机构和振动机构共同工作,使得旋转振动筛分机中的筛分组在旋转的同时发生振动。As shown in Figures 1 and 2, the present invention is also provided with a vibrating mechanism at the bottom of the support 7, and the vibrating mechanism includes a vibrating motor 8, and the vibrating motor 8 and the cylinder 10 are connected together by a belt. Weight 9, when the vibration motor 8 drives the cylinder 10 to rotate through the belt, the weight 9 rotates with the cylinder 10 to cause the vibration of the cylinder 10, which in turn causes the vibration of the bracket 7, so that the rotation mechanism in the present invention Working together with the vibrating mechanism, the screening group in the rotary vibrating screening machine vibrates while rotating.

振动机构可以设置为如图1所示的两个或多个,也可以设置为如图2所示的一个,只要其能确保振动过程的均匀和恒定即可。The vibrating mechanism can be set as two or more as shown in Figure 1, or as one as shown in Figure 2, as long as it can ensure the uniformity and constantness of the vibration process.

下面结合附图对本发明的工作过程做详细说明。The working process of the present invention will be described in detail below in conjunction with the accompanying drawings.

当开始工作时,环状喷水器6向物料喷水,物料被润湿,物料由进料口5进入同时旋转振动的旋转振动筛分机,物料首先落至筛板S1的筛面上,经过充分的物料筛分过程后,粒径大于筛板S1筛孔大小的物料保持在筛面上,并由排料口P1排出,粒径小于筛板S1筛孔大小的物料透过筛孔下落至隔板G1,并顺着隔板G1的光滑表面下滑至筛板S2;When starting to work, the annular water sprayer 6 sprays water on the material, the material is wetted, and the material enters the rotary vibrating screening machine through the feed port 5 and rotates and vibrates at the same time. The material first falls on the screen surface of the sieve plate S1 and passes through After a sufficient material screening process, the material whose particle size is larger than the sieve hole of the sieve plate S1 remains on the sieve surface and is discharged from the discharge port P1, and the material whose particle size is smaller than the sieve hole size of the sieve plate S1 falls through the sieve hole to the Separator G1, and slide down to the sieve plate S2 along the smooth surface of the separator G1;

进入第二级筛分组后,经过充分的物料筛分过程,粒径大于筛板S2筛孔大小的物料保持在筛面上,并由排料口P2排出,粒径小于筛板S2筛孔大小的物料透过筛孔下落至隔板G2,并顺着隔板G2的光滑表面下滑至筛板S3;After entering the second-stage screening group, after sufficient material screening process, the material whose particle size is larger than the mesh size of the sieve plate S2 remains on the screen surface and is discharged from the discharge port P2, and the particle size is smaller than the mesh size of the sieve plate S2. The material falls through the sieve hole to the partition G2, and slides down the smooth surface of the partition G2 to the sieve plate S3;

进入第三级筛分组后,经过充分的物料筛分过程,粒径大于筛板S2筛孔大小的物料保持在筛面上,并由排料口P3排出,粒径小于筛板S2筛孔大小的物料透过筛孔下落至隔板G3,并顺着隔板G3的光滑表面下滑,然后由排料口P4排出。After entering the third stage sieve group, after sufficient material sieving process, the material whose particle size is larger than the sieve hole size of the sieve plate S2 remains on the sieve surface and is discharged from the discharge port P3, and the particle size is smaller than the sieve plate S2 sieve size. The material falls through the sieve hole to the partition G3, slides down the smooth surface of the partition G3, and then is discharged from the discharge port P4.

本实施例中的筛分机最终实现了物料的4个粒度分级。The screening machine in this embodiment finally realizes 4 particle size classifications of materials.

如图3、4所示,筛网W下面设有筛架J,可有效增加筛网的结构强度,确保筛网在振动的过程中能够稳定可靠的工作,提高筛网的使用寿命。As shown in Figures 3 and 4, a screen frame J is provided under the screen W, which can effectively increase the structural strength of the screen, ensure that the screen can work stably and reliably during the vibration process, and improve the service life of the screen.

本发明还可以根据实际生产需要加设更多级筛分组,以对物料完成更多粒度级的筛分。The present invention can also add more levels of screening groups according to actual production needs, so as to complete the screening of more granularity levels for materials.

Claims (10)

1.一种旋转振动筛分机,包括一个筒状的筛箱(1),其特征在于本筛分机还包括如下组成部分:1. a rotary vibration screening machine, comprising a cylindrical sieve box (1), is characterized in that this screening machine also includes the following components: 旋转机构,该旋转机构包括转轴(3)以及驱动转轴(3)转动的驱动机构,所述转轴(3)可转动地设置在弹性支架上,所述筛箱(1)套设固定在转轴(3)上;The rotating mechanism includes a rotating shaft (3) and a driving mechanism for driving the rotating shaft (3), the rotating shaft (3) is rotatably arranged on an elastic support, and the screen box (1) is sleeved and fixed on the rotating shaft ( 3) on; 本筛分机还包括带动弹性支架振动的振动机构;The screening machine also includes a vibration mechanism that drives the elastic support to vibrate; 多级筛分机构,包括多级自上而下均呈倾斜状设置的筛分组,此多级筛分组固定设置在筛箱(1)和转轴(3)之间;处于最高位置处的筛分组自靠近转轴(3)一侧向靠近筛箱(1)一侧逐渐斜向下倾斜,且相邻筛分组的倾斜方向相反;除处于最低位置的筛分组之外的其他筛分组在其倾斜方向的最低端处均设置有将筛上物排出筛箱(1)的出料口和将筛下物排出至下一级筛分组的落料口,处于最低位置的筛分组在其倾斜方向的最低端处设置有将筛上物和筛下物分别排出筛箱(1)的出料口;多级筛分组中的筛孔直径自上而下逐渐减小;Multi-stage screening mechanism, including multi-stage screening groups inclined from top to bottom, this multi-stage screening group is fixed between the screen box (1) and the rotating shaft (3); the screening group at the highest position From the side close to the rotating shaft (3) to the side close to the screen box (1), it gradually inclines downward, and the inclination directions of adjacent screening groups are opposite; The lowest end of the screen is equipped with a discharge port for discharging the oversize material out of the screen box (1) and a discharge port for discharging the undersize material to the next stage of the screen group. The screen group at the lowest position is at the lowest The end is provided with an outlet for discharging the oversize and undersize out of the sieve box (1); the diameter of the sieve holes in the multi-stage sieve group decreases gradually from top to bottom; 所述筛箱(1)的上端设有将物料均匀散布在处于最高位置处的筛分组的上端面的进料口(5)。The upper end of the sieve box (1) is provided with a feed port (5) for uniformly spreading materials on the upper end surface of the sieve group at the highest position. 2.根据权利要求1所述的旋转振动筛分机,其特征在于:任意一级筛分组均由带有网孔的筛板和隔板构成,所述隔板设置在同级筛分组的筛板的下方,且隔板的板面与筛板的板面相平行。2. The rotary vibrating sieving machine according to claim 1, characterized in that: any first-level screening group is composed of a sieve plate and a partition with mesh, and the partition is arranged on the sieve plate of the same-level screening group. Below, and the plate surface of the separator is parallel to the plate surface of the sieve plate. 3.根据权利要求1所述的旋转振动筛分机,其特征在于:所述进料口(5)的上侧设有向进料口处的物料喷水的环状喷水器(6);所述环状喷水器(6)套设固定在转轴(3)上。3. The rotary vibrating screening machine according to claim 1, characterized in that: the upper side of the feed port (5) is provided with an annular water sprayer (6) for spraying water to the material at the feed port; The annular water sprayer (6) is sheathed and fixed on the rotating shaft (3). 4.根据权利要求2所述的旋转振动筛分机,其特征在于:所述筛板由带有网孔的筛网(W)和筛架(J)构成,所述筛网(W)设置在筛架(J)的上侧。4. The rotary vibrating screening machine according to claim 2, characterized in that: the sieve plate is made of a screen (W) with meshes and a sieve frame (J), and the screen (W) is arranged on The upper side of the screen frame (J). 5.根据权利要求2所述的旋转振动筛分机,其特征在于:所述筛板的倾斜角度为10°~25°。5. The rotary vibration screening machine according to claim 2, characterized in that: the inclination angle of the sieve plate is 10°-25°. 6.根据权利要求2所述的旋转振动筛分机,其特征在于:所述隔板的朝向筛板的上表面设置为便于物料下滑的光滑面。6. The rotary vibrating screening machine according to claim 2, characterized in that: the upper surface of the partition plate facing the sieve plate is set as a smooth surface to facilitate the sliding of materials. 7.根据权利要求1~6任一项所述的旋转振动筛分机,其特征在于:所述弹性支架包括弹性支撑组件(12)以及用于支撑转轴(3)并与转轴(3)构成转动配合的支架(7),所述支架(7)通过弹性支撑组件(12)固定在底座(11)上;所述筛箱(1)和支架(7)相配合构成将多级筛分机构围合于其中的封闭空间。7. The rotary vibrating screening machine according to any one of claims 1 to 6, characterized in that: the elastic support includes an elastic support assembly (12) and is used to support the rotating shaft (3) and form a rotation with the rotating shaft (3). A matching bracket (7), the bracket (7) is fixed on the base (11) through an elastic support assembly (12); the screen box (1) and the bracket (7) cooperate to form a multi-stage screening mechanism enclosed space within it. 8.根据权利要求7所述的旋转振动筛分机,其特征在于:所述振动机构包括固定在底座(11)上的振动电机(8)和偏心组件;所述偏心组件固定在支架(7)上并与支架(7)构成转动配合,所述振动电机(8)通过皮带驱动偏心组件转动。8. The rotary vibration screening machine according to claim 7, characterized in that: the vibration mechanism includes a vibration motor (8) and an eccentric assembly fixed on the base (11); the eccentric assembly is fixed on the bracket (7) and form rotational cooperation with the bracket (7), the vibration motor (8) drives the eccentric assembly to rotate through a belt. 9.根据权利要求8所述的旋转振动筛分机,其特征在于:所述偏心组件包括空心的圆筒(10)和重块(9);所述重块(9)固定在圆筒(10)的内侧壁面上;所述振动电机(8)通过皮带驱动所述圆筒(10)转动。9. The rotary vibrating screening machine according to claim 8, characterized in that: the eccentric assembly comprises a hollow cylinder (10) and a weight (9); the weight (9) is fixed on the cylinder (10) ) on the inner wall surface; the vibration motor (8) drives the cylinder (10) to rotate through a belt. 10.根据权利要求7所述的旋转振动筛分机,其特征在于:所述旋转机构中的驱动机构包括旋转电机(2);所述旋转电机(2)通过皮带驱动转轴(3)转动。10. The rotary vibration screening machine according to claim 7, characterized in that: the driving mechanism in the rotary mechanism includes a rotary motor (2); the rotary motor (2) drives the rotating shaft (3) to rotate through a belt.
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