Cement aggregate screening machine feeding auxiliary device

Abstract

The application relates to a cement aggregate screening machine feeding auxiliary device, and discloses a cement aggregate screening machine feeding auxiliary device. By cooperating with multiple components such as a supporting cylinder, a turnover disc and an arc-shaped fence, the aggregate at the belt feeder can accurately fall into the inner cavity of the supporting cylinder without scattering. By setting a first gap and a first discharge port and other components for auxiliary discharging, the multiple first discharge ports are uniformly distributed, and the aggregate can be discharged only when the first gap and the first discharge port are aligned. During the rotation of the turnover disc, the multiple first discharge ports alternately discharge, and the aggregate can be uniformly distributed on the first layer screen plate of the lower vibrating screen to improve the screening efficiency. The application can avoid the problem that the aggregate directly impacts the screen plate of the belt feeder, causing the deformation of the screen plate.

Description

Technical Field

[0001] This application relates to a feeding auxiliary device for a cement aggregate screening machine, specifically a feeding auxiliary device for a cement aggregate screening machine. Background Technology

[0002] Cement aggregates are divided into coarse aggregates and fine aggregates, with a particle size of 4.75 mm as the dividing line. Particles larger than 4.75 mm are considered coarse aggregates, and those smaller are considered fine aggregates. To control the particle size distribution of aggregates, remove impurities, and meet the requirements of engineering for strength, workability, and durability, it is necessary to use equipment such as vibrating screens and drum screens to screen the aggregates and classify them according to particle size.

[0003] In the existing technology, when feeding materials into a vibrating screen, uneven feeding will cause excessive accumulation of aggregates at the inlet, resulting in uneven distribution. This will further affect the subsequent screening effect. In addition, large-diameter aggregates have greater gravitational potential energy when falling, which directly acts on the first layer of screen plate below. Long-term impact will cause the screen plate to deform and affect its service life. Utility Model Content

[0004] In view of the above problems, this application provides a feeding auxiliary device for a cement aggregate screening machine, which evenly distributes the aggregate on the first screen plate of the vibrating screen below, improves screening efficiency, and can reduce the impact damage of the aggregate to the screen plate.

[0005] According to one aspect of the embodiments of this application, a feeding auxiliary device for a cement aggregate screening machine is provided. The feeding auxiliary device includes a support cylinder installed and connected to the top inlet of the screening machine, and a belt conveyor for feeding material into the support cylinder. A semi-circular cover is provided on one side of the top of the support cylinder, a material distribution motor is provided on the top of the cover, and a tilting shaft is drivenly connected to the bottom end of the material distribution motor. Multiple first discharge ports are distributed circumferentially around the bottom wall of the support cylinder. A disc-shaped tilting disk is rotatably disposed above the bottom wall of the support cylinder. The bottom end of the tilting shaft is fixedly connected to the top of the tilting disk. Multiple arc-shaped material feeding plates are arranged in a circular array on the top of the tilting disk. A first notch is provided at the edge of the tilting disk. One end of the top of the support cylinder is connected to an upwardly open arc-shaped enclosure, and the discharge end of the belt conveyor faces the inner side of the arc-shaped enclosure.

[0006] In some embodiments, the support cylinder has a plurality of second discharge ports arranged in a ring at its center, and correspondingly, the flip plate has a plurality of second notches that match the second discharge ports.

[0007] In some embodiments, a guide plate with a semi-circular cross-section is provided on the inner wall of the support cylinder, and the guide plate gradually slopes downward from the outer side of the support cylinder toward its central axis.

[0008] In some embodiments, the bottom of the discharge end of the belt feeder is supported on the top of the cover by a support leg, and the support leg and the cover are connected by a screw.

[0009] In some embodiments, a protective cover is provided above the dispensing motor.

[0010] In some embodiments, an annular flange is provided on the lower outer periphery of the support cylinder.

[0011] The beneficial effects of this application are as follows: By setting up multiple components such as a support cylinder, a tilting disc, and an arc-shaped baffle to work together, the aggregate at the belt conveyor can accurately fall into the inner cavity of the support cylinder without spillage. In this application, by setting up components such as a first notch and a first discharge port for auxiliary feeding, multiple first discharge ports are evenly distributed, and feeding can only occur when the first notch and the first discharge port are aligned. Thus, as the tilting disc rotates, multiple first discharge ports alternately feed, and the aggregate can be evenly distributed on the first layer of the vibrating screen below, thereby improving screening efficiency. In this embodiment, the material falls from the belt conveyor, bounces back to the arc-shaped baffle, and then falls into the support cylinder before finally being discharged into the screening machine. Furthermore, the structural strength of the arc-shaped baffle and support cylinder is higher than that of the screen plate. Therefore, this application can avoid the problem of the aggregate on the belt conveyor directly impacting the screen plate and causing screen plate deformation.

[0012] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the device provided in the embodiments of this application; Figure 2 A partial structural diagram of the support cylinder and the tilting disk provided in an embodiment of this application; Figure 3 This is a partial structural diagram of the support cylinder provided in an embodiment of this application; Figure 4 This is a partial half-section structural diagram of the support cylinder provided in an embodiment of this application.

[0014] The reference numerals in the detailed embodiments are as follows: The cement aggregate screening machine includes a feeding auxiliary device 100, a support cylinder 110, a first discharge port 111, an arc-shaped enclosure 112, a second discharge port 113, a guide plate 114, a belt conveyor 120, a cover 130, a material distribution motor 140, a tilting shaft 141, a tilting disc 150, a material feeding plate 151, a first notch 152, a second notch 153, and a flange 160. Detailed Implementation

[0015] The embodiments of the technical solution of this application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and the foregoing description of the accompanying drawings are intended to cover non-exclusive inclusion.

[0016] For details, please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of the overall structure of the device provided in an embodiment of this application. Figure 2 This is a partial structural diagram of the support cylinder and the tilting disk provided in an embodiment of this application. Figure 3 This is a partial structural diagram of the support cylinder provided in an embodiment of this application. Figure 4This is a partial half-sectional structural diagram of the support cylinder provided in an embodiment of this application. The cement aggregate screening machine feeding auxiliary device 100 includes a support cylinder 110 installed and connected to the top feed inlet of the screening machine, and a belt conveyor 120 for feeding material into the support cylinder 110. The screening machine can be of various forms, such as a single-stage vibrating screen, a multi-stage separator, etc., as long as the screening machine meets the requirement of top feeding, it can be connected and used with this equipment. The belt conveyor 120 can also be replaced by equipment such as a lifting well. A semi-circular cover 130 is provided on one side of the top of the support cylinder 110. The cover 130 can, to a certain extent, prevent the aggregate inside the support cylinder 110 from being thrown to the outside when it is turned over. A material distribution motor 140 is installed at the top of the cover 130, and a tilting shaft 141 is connected to the bottom of the material distribution motor 140. The material distribution motor 140 is a servo motor and can be connected to the tilting shaft 141 via a coupling. Thus, the material distribution motor 140 can drive the tilting disk 150 to rotate after being opened. Multiple first discharge ports 111 are distributed circumferentially around the bottom wall of the support cylinder 110. The aggregate inside the support cylinder 110 can fall into the corresponding screening machine through the first discharge ports 111. A disc-shaped rotating disk 150 is rotatably mounted on the bottom wall of the support cylinder 110. The bottom end of the rotating shaft 141 is fixedly connected to the top of the rotating disk 150. Multiple arc-shaped material-pushing plates 151 are arranged in a circular array on the top of the rotating disk 150. When the material distribution motor 140 drives the rotating disk 150 to rotate, it simultaneously drives the material-pushing plates 151 to rotate as well. When there is less aggregate above the rotating disk 150, the material-pushing plates 151, while moving the aggregate above the rotating disk 150, will be thrown to the edge of the rotating disk 150 under centrifugal force. A first notch 152 is provided at the edge of the rotating disk 150. During the rotation of the rotating disk 150, when the first notch 152 aligns with the first discharge port 111, the aggregate at the edge of the rotating disk 150 can sequentially pass through the first notch 152 and the first discharge port 111 into the screening machine for screening. The top end of the support cylinder 110 is connected to an upward-opening arc-shaped enclosure 112. The discharge end of the belt feeder 120 faces the inner side of the arc-shaped enclosure 112. During the feeding process of the belt feeder 120, the aggregate is blocked by the arc-shaped enclosure 112 and bounced back into the support cylinder 110 to prevent the aggregate from spilling outside the device.

[0017] As can be seen from the above, in the working process of this application embodiment, the device is first installed at the top inlet of the screening machine. The aperture of the support cylinder 110 can be set according to the aperture of the screening machine inlet to ensure that there is no misalignment between the bottom of the support cylinder 110 and the screening machine inlet. Then, the belt feeder 120 is used for feeding. After the aggregate leaves the belt feeder 120, it will hit the inner side of the arc-shaped enclosure 112 and bounce back into the inner cavity of the support cylinder 110. The distributing motor 140 drives the rotating disk 150, the feeding plate 151 on the rotating disk 150, and the aggregate to rotate through the rotating shaft 141. During the rotation, when the first notch 152 at the edge of the rotating disk 150 is aligned with the first discharge port 111, the aggregate above the first discharge port 111 will pass through the first notch 152 and the first discharge port 111 in sequence. After the material falls into the screening machine through the discharge port 111, under other operating conditions, such as when the feeding speed of the belt feeder 120 is closely matched with the screening speed of the screening machine, or after the belt feeder 120 stops, there is less aggregate deposit inside the support cylinder 110. The aggregate only remains on the surface of the tilting disc 150 and does not pile up. At this time, during the rotation of the tilting disc 150, the material-pushing plate 151 drives the aggregate to rotate together. Under the action of centrifugal force, the aggregate is thrown out to the edge of the tilting disc 150, thereby ensuring that the equipment achieves complete discharge without residue.

[0018] As can be seen from the above, in this embodiment of the application, by setting multiple components such as the support cylinder 110, the tilting disc 150, and the arc-shaped barrier 112 to cooperate with each other, the aggregate at the belt feeder 120 can accurately fall into the inner cavity of the support cylinder 110 without spilling. In this application, the first notch 152 and the first discharge port 111 are set to assist in the discharge. Multiple first discharge ports 111 are evenly distributed, and the aggregate can only be discharged when the first notch 152 and the first discharge port 111 are aligned. Thus, when the tilting disc 150 rotates, multiple first discharge ports 111 alternately discharge the aggregate, and the aggregate can be evenly distributed on the first layer of the vibrating screen below to improve the screening efficiency. In this embodiment, the material falls from the belt feeder 120 and bounces back to the arc-shaped baffle 112 before falling into the support cylinder 110 and finally being discharged into the screening machine. The structural strength of the arc-shaped baffle and the support cylinder 110 is higher than that of the screen plate. Therefore, this application can avoid the problem of the aggregate on the belt feeder 120 directly impacting the screen plate and causing the screen plate to deform.

[0019] In some embodiments, the support cylinder 110 has a plurality of second discharge ports 113 arranged in a ring at its center. Correspondingly, the tilting disc 150 has a plurality of second notches 153 that match the second discharge ports 113. In this embodiment, the plurality of second discharge ports 113 can be arranged in a rectangular array or in a plurality of concentric ring arrays. With the above arrangement, when the tilting disc 150 rotates, after the second notch 153 aligns with the corresponding second discharge port 113, the aggregate can pass through the second notch 153 and the second discharge port 113 in sequence and enter the screening machine.

[0020] In some embodiments, a guide plate 114 with a semi-circular cross-section is provided on the inner wall of the support cylinder 110. The guide plate 114 gradually slopes downward from the outer side of the support cylinder 110 towards its central axis. In this embodiment, the guide plate 114 is used to guide the aggregate flow, so that the aggregate is preferentially guided to the middle of the tilting disc 150, and further discharged by the tilting disc 150.

[0021] In some embodiments, the bottom of the discharge end of the belt feeder 120 is supported on the top of the cover 130 by a support leg, and the support leg and the cover 130 are connected by a screw. In this embodiment, by fixing the belt feeder 120 and the cover 130, the stability of each device during operation is ensured. The belt feeder 120 is above the cover 130, and when the discharge end of the belt feeder 120 discharges material, the aggregate path is parabolic, thereby preventing the aggregate from hitting the distributing motor 140 on the top of the cover 130.

[0022] In some embodiments, a protective cover is provided above the dispensing motor 140. In this embodiment, the protective cover is provided to further protect the dispensing motor 140.

[0023] In some embodiments, an annular flange 160 is provided on the lower outer periphery of the support cylinder 110. In this embodiment, the support cylinder 110 and the screening machine can be connected via the flange 160, further improving the stability of the connection between the device and the screening machine.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although the foregoing embodiments have provided a detailed description of this application, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A feeding auxiliary device for a cement aggregate screening machine, characterized in that, Includes a support cylinder installed and connected to the top feed inlet of the screening machine, and a belt feeder for feeding materials into the support cylinder; A semi-circular cover is provided on one side of the top of the support cylinder. A material dispensing motor is provided on the top of the cover. A rotating shaft is driven to the bottom of the material dispensing motor. Multiple first feeding ports are distributed circumferentially around the bottom wall of the support cylinder. A disc-shaped rotating disk is rotatably provided above the bottom wall of the support cylinder. The bottom end of the rotating shaft is fixedly connected to the top of the rotating disk. Multiple arc-shaped material feeding plates are arranged in a circular array on the top of the rotating disk. A first notch is provided at the edge of the rotating disk. The top end of the support cylinder is connected to an upward-opening arc-shaped enclosure, and the discharge end of the belt conveyor faces the inside of the arc-shaped enclosure.

2. The cement aggregate screening machine feeding auxiliary device according to claim 1, characterized in that, The support cylinder has multiple second feeding ports arranged in a ring in the middle, and correspondingly, the tilting disc has multiple second notches that match the second feeding ports.

3. The cement aggregate screening machine feeding auxiliary device according to claim 1, characterized in that, A guide plate with a semi-circular cross-section is provided on the inner wall of the support cylinder, and the guide plate gradually slopes downward from the outer side of the support cylinder towards its central axis.

4. The cement aggregate screening machine feeding auxiliary device according to claim 1, characterized in that, The bottom of the discharge end of the belt conveyor is supported on the top of the cover by a support leg, and the support leg and the cover are connected by a screw.

5. The cement aggregate screening machine feeding auxiliary device according to claim 4, characterized in that, A protective cover is installed above the material dispensing motor.

6. The cement aggregate screening machine feeding auxiliary device according to claim 1, characterized in that, The lower outer periphery of the support cylinder is provided with an annular flange.

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