Vibrating screen

Abstract

The utility model discloses a vibrating screen. The vibrating screen comprises a vibrating screen body and a screen mesh, the vibrating screen body is provided with a closed working chamber, a feeding port and a discharging port, the feeding port and the discharging port are communicated with the working chamber, the screen mesh is fixedly arranged in the working chamber, and the vibrating screen body further comprises a tension detection assembly. The tension detection assembly is fixedly installed on the screen and used for monitoring the tension borne by the screen. In addition, the tension detection assembly can judge whether the screen is broken or not according to the tension change of the screen, and sends out an early warning signal when detecting that the screen is broken. According to the utility model, the tension detection assembly is utilized to effectively detect the fracture condition of the screen, so that any fracture sign of the screen can be found in time, and then measures of stopping and replacing the screen can be taken quickly, so as to prevent the product quality from being influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to screen detection technical field especially, it relates to a vibrating screen. BACKGROUND

[0002] The vibrating screen executes its function through the reciprocating rotation type vibration generated by the vibrator. The rotating weight above the vibrator is responsible for generating the planar rotary vibration on the screen surface, and the rotating weight below the vibrator promotes the screen surface to form the conical rotary vibration. The combined action of the two kinds of vibrations causes the screen surface to generate the composite rotary vibration. The vibration track constitutes a complex three-dimensional space curve. When the projection of this curve on the horizontal plane presents a circular shape, it presents an elliptical shape on the vertical plane. By adjusting the exciting force of the upper and lower rotating weights, the amplitude can be controlled. At the same time, changing the spatial phase angle of the upper and lower weights can adjust the curve shape of the screen surface movement track and further affect the movement path of the material on the screen surface.

[0003] Screening, as a key step in the production of new energy battery materials, plays a decisive role in the quality of the product and is directly related to the operation and reputation of the company. Therefore, it is crucial to ensure that the breakage of the screen during the screening process can be accurately detected to prevent un-screened materials from mixing into the finished product due to screen breakage, thereby causing serious quality problems.

[0004] Current vibrating screen monitoring mainly relies on the installation of cameras for manual monitoring, which requires the operator to be present continuously. However, manual monitoring cannot capture the breakage of the screen in real time, which not only consumes a large amount of human resources, but also reduces the work efficiency of the employees. More seriously, if the breakage of the screen is not discovered in time, it will directly affect the quality of the product. SUMMARY

[0005] The utility model aims at providing a vibrating screen to overcome the deficiencies in the prior art.

[0006] To achieve the foregoing utility model purposes, the technical scheme adopted by the utility model comprises:

[0007] The utility model provides a vibrating screen, including vibrating screen main part and screen, vibrating screen main part has a closed working chamber and with the working chamber communication feed port, discharge port, the screen is fixedly arranged in the working chamber, the vibrating screen still includes tension detection subassembly, the tension detection subassembly is fixedly arranged on the screen and is used for monitoring the tension of the screen, and, according to the tension of the screen judges whether the screen breaks, and, when the screen breaks, sends out early warning signal.

[0008] In some more specific embodiments, the tension detecting assembly comprises a tension sensor and an alarm, the tension sensor is connected with the alarm, the tension sensor is fixed on the upper layer of the screen, and the tension sensor is wrapped with a protective shell. The protective shell can be but is not limited to a plastic protective shell. The tension sensor is wrapped with a plastic protective shell to prevent sensor failure caused by long-term material friction.

[0009] Preferably, the tension detecting assembly comprises at least two tension sensors, one of which is arranged at the middle of the radius extending from the midpoint of the screen to the edge of the screen, and the other of which is arranged at the middle of the radius extending from the midpoint of the screen to the edge of the screen in the opposite direction. Specifically, one sensor is arranged at the center of the radius of the screen, and the other is arranged in the opposite direction to facilitate detection. When the screen is damaged or broken, the tension will suddenly change significantly, and the sensor can provide early warning. More preferably, the tension detecting assembly comprises four tension sensors, which are arranged in four areas on the upper layer of the screen, with one tension sensor arranged in the middle of each area. When the area screen is broken, the tension sensor will quickly transmit to the alarm, which can quickly detect screen breakage and significantly improve the sensitivity of detection.

[0010] In some more specific embodiments, the vibrating screen body comprises a screen support and a screen ring arranged on the screen support, the screen support encloses the working chamber, and the screen is fixed on the screen ring.

[0011] In further embodiments, the vibrating screen body comprises a plurality of screen rings, and the vibrating screen comprises a plurality of screens; the plurality of screens divide the working chamber into a plurality of independent closed screen layers, and the feed inlet is directly connected with the topmost closed screen layer.

[0012] Further, the plurality of screens have different mesh counts. Preferably, the mesh counts of the plurality of screens increase in turn in the direction away from the top surface of the vibrating screen body.

[0013] Further, the vibrating screen body has a plurality of discharge outlets, and each closed screen layer is directly connected with at least one discharge outlet.

[0014] In some more specific embodiments, the vibrating screen body is further provided with an observation window.

[0015] In further embodiments, the vibrating screen further comprises an observation assembly, the observation assembly comprises a camera, the camera is fixed on the vibrating screen body, and the camera is used to monitor the image of the screen in real time.

[0016] Further, the front end of the camera is provided with a protective cover.

[0017] In some more specific embodiments, the bottom of the vibrating screen body is further provided with a spring support.

[0018] Compared with the prior art, the advantages of the utility model at least include:

[0019] First, the vibrating screen provided by the utility model can monitor the tension state of the screen in real time by uniformly installing the tension detection assembly at the bottom of the screen.

[0020] Second, the vibrating screen provided by the utility model can realize remote monitoring of the screen rupture condition by configuring the monitoring assembly, so as to accurately master the key information such as the rupture size and rupture time of the screen. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the vibrating screen provided by the utility model embodiment.

[0022] MARK NUMBER EXPLANATION:

[0023] 11, tension sensor; 12, alarm; 13, observation window; 14, screen; 15, discharge port; 16, spring support. DETAILED DESCRIPTION

[0024] In view of the deficiencies in the prior art, the present inventors have long-term research and a large number of practices, and have proposed the technical scheme of the utility model.

[0025] Please refer to Figure 1 The embodiment provides a vibrating screen, which comprises a vibrating screen body, a screen 14, a tension detection assembly and an observation assembly.

[0026] In further embodiments, the tension detection assembly comprises a tension sensor 11 and an alarm 12, the tension sensor 11 is connected with the alarm 12, the tension sensor 11 is fixed on the upper layer of the screen 14, and the tension sensor 11 is wrapped with a plastic shell. The plastic shell can prevent the sensor from failure caused by long-term material friction.

[0027] Preferably, the tension detection assembly comprises at least two tension sensors 11, one of which is arranged at the center of the screen radius, and the other is arranged in the opposite direction to facilitate detection. When the screen is damaged or broken, the tension will change suddenly and significantly, and the sensor can provide early warning.

[0028] In this scheme, by arranging the tension sensor 11 at the bottom of the screen 14, the tension of the screen 14 can be monitored, and whether the screen 14 is broken can be determined according to the monitored tension, and a warning signal is sent. At the same time, the alarm 12 is connected with the tension sensor 11, which is used to execute the alarm action according to the warning signal. By arranging the observation assembly on the vibrating screen body, the screen 14 breaking situation can be monitored, and the screen 14 breaking size, breaking time, etc. can be known. The tension detection and direct observation are carried out synchronously, so that the screen 14 breaking can be observed intuitively at the first time, the screening is avoided, the operator can know the screen 14 breaking situation in time, so that the screen 14 can be replaced in time, and the product error rate is reduced.

[0029] In some embodiments, the vibrating screen body comprises a screen support and a screen ring arranged on the screen support, the screen support encloses the working chamber, and the screen 14 is fixed on the screen ring.

[0030] In further embodiments, the vibrating screen body comprises a plurality of screen rings, and the vibrating screen comprises a plurality of screens 14; the working chamber is divided into a plurality of independent closed screen layers by the plurality of screens 14, and the feed inlet is directly connected with the closed screen layer at the top.

[0031] In further embodiments, the vibrating screen body has a plurality of discharge outlets 15, and each closed screen layer is directly connected with at least one discharge outlet 15.

[0032] In the scheme, the multiple layers of screen 14 can screen materials with different particle sizes. In each closed screen layer, the bottom of the screen 14 is provided with a tension sensor 11 to ensure that each screen 14 can be monitored in time. At the same time, the alarm 12 is connected with each tension sensor 11, and when any one tension sensor 11 judges that the screen 14 is broken, the alarm 12 executes the alarm action. The alarm action here can include the buzzer sounding an alarm, or the indicator light showing a specific color, or both, and no specific limitation is provided.

[0033] In some embodiments, the multiple screens 14 have different mesh numbers. Specifically, the mesh numbers of the multiple screens 14 increase in turn along the direction away from the top surface of the vibrating screen body. The mesh number of the screen 14 can be represented by the number of holes per square centimeter, or the number of holes per inch, or directly described by the size of the hole. The higher the mesh number, the finer the particle size of the material; on the contrary, the lower the mesh number, the coarser the particle size of the material. In the scheme, the mesh number of the screen 14 increases in turn along the direction away from the top surface of the vibrating screen body, which can make the material be screened step by step, so as to obtain products with different particle size levels.

[0034] In a specific implementation scenario, multiple screens 14 with different mesh numbers are arranged in parallel in the working chamber to divide the working chamber into multiple closed screen layers. The mesh number of the screen 14 increases in turn from the feeding port to the discharge port 15 in the vibrating screen cavity. In each closed screen layer, the side wall of the vibrating screen body is provided with a discharge port 15. The bottom of the screen 14 is provided with a tension sensor 11 for monitoring the tension of the screen 14, and judging whether the screen 14 is broken according to the monitored tension, and sending a warning signal. The side wall of the screen 14 is provided with an observation assembly for observing the breaking of the screen 14. The alarm 12 is connected with the tension sensor 11 for executing an alarm action according to the warning signal.

[0035] In some embodiments, the vibrating screen body is further provided with an observation window 13 fixedly arranged on the screen steel ring for monitoring the breaking of the screen 14 through the observation window 13. The vibrating screen further includes an observation assembly, which at least includes a camera fixed on the vibrating screen body and used for monitoring the image of the screen in real time to determine the breaking of the screen 14.

[0036] In the present scheme, the tension sensor 11 is responsible for monitoring the tension of the screen 14 and sending a pre-warning signal when the screen 14 is detected to be broken. Subsequently, the alarm 12 will perform corresponding alarm action according to the pre-warning signal. In order to quickly confirm the breaking condition of the screen 14, the operator can observe in real time through the observation window 13. In other words, the tension sensor 11 and the alarm 12 work synchronously; once the tension sensor 11 detects that the screen 14 is broken, the alarm 12 immediately starts the alarm program. The operator can immediately check the breaking condition through the observation window 13 without continuous monitoring. In this way, only after the alarm 12 sends an alarm, the check is needed, thereby reducing the labor intensity of the operator and improving the work efficiency. In addition, the camera records the whole process of the screen 14 breaking, and through the analysis of the stored video data, the cause of the screen 14 breaking can be accurately diagnosed, which is convenient for subsequent adjustment and optimization, and further improves the work efficiency of the vibrating screen.

[0037] It can be understood that during the vibration process, the camera is in contact with the material and continuously rubs, which causes the camera lens to become blurred, and further causes the quality of the captured images and videos to decrease. In some embodiments, a protective cover is installed at the front end of the camera, which helps to protect the camera from scratching.

[0038] In some embodiments, the bottom of the vibrating screen body is further provided with a spring support 16 and a vibration assembly. Specifically, the vibrating screen body is connected with the vibration assembly. The vibration assembly here at least includes a vibration motor for making the vibrating screen cavity vibrate, so that the screen 14 vibrates and a large amount of material of various particle sizes can be screened. The spring support 16 is arranged at the bottom of the vibrating screen body for supporting the vibrating screen cavity and guiding the vibrating screen cavity to make reciprocating motion.

[0039] In summary, the present embodiment discloses a vibrating screen, which can monitor the tension state of the screen 14 in real time by installing the tension sensor 11 at the bottom of the screen 14 and send a pre-warning signal when the tension is abnormal. In cooperation with the alarm 12, once the pre-warning signal is received, the alarm program will be immediately started to remind the operator that the screen 14 may be broken, so as to allow them to quickly replace the screen 14 and reduce the product screening error rate. In addition, by installing the camera on the screen steel ring and monitoring through the observation window 13, the breaking condition of the screen 14, including the size and occurrence time of the breaking, can be accurately observed. This double monitoring method allows the operator to directly see the condition that the screen 14 is no longer effective in screening after being broken, ensuring that the breaking problem of the screen 14 can be discovered and handled in time, thereby improving the practicability of the whole device.

[0040] It should be understood that the above embodiments are only to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A vibrating screen comprising a vibrating screen body and a screen mesh, the vibrating screen body having a closed working chamber and a feed inlet and a discharge outlet communicating with the working chamber, the screen mesh being fixedly arranged in the working chamber, characterized in that, The tension detection assembly is fixedly arranged on the screen and is used for monitoring the tension of the screen, judging whether the screen is broken according to the tension of the screen, and sending a pre-warning signal when the screen is broken.

2. The shaker screen of claim 1, wherein, The tension detection assembly comprises a tension sensor and an alarm, the tension sensor is connected with the alarm, the tension sensor is fixed on the upper layer of the screen, and the tension sensor is wrapped with a protective shell.

3. The shaker of claim 1, wherein, The vibrating screen body comprises a screen support and a screen ring arranged on the screen support, the screen support encloses the working chamber, and the screen is fixed on the screen ring.

4. A vibrating screen according to claim 3, characterised in that, The vibrating screen body comprises a plurality of screen rings, and the vibrating screen comprises a plurality of screens. The plurality of screens divide the working chamber into a plurality of independent closed screen layers, and the feeding port is directly communicated with the topmost closed screen layer.

5. The vibrating screen of claim 4, wherein, The mesh numbers of the plurality of screens are different.

6. The vibrating screen of claim 5, wherein, The mesh numbers of the plurality of screens gradually increase in the direction away from the top surface of the vibrating screen body.

7. The vibrating screen of claim 4, wherein, The vibrating screen body has a plurality of discharge ports, and each closed screen layer is directly communicated with at least one discharge port.

8. The shaker of claim 1, wherein, The vibrating screen body is further provided with an observation window.

9. A vibrating screen according to claim 8, characterised in that, The observation assembly comprises a camera, the camera is fixed on the vibrating screen body, and is used for monitoring the image of the screen in real time.

10. The vibrating screen of claim 9, wherein, The front end of the camera of the camera is provided with a protective cover.

11. The shaker of claim 1, wherein, The bottom of the vibrating screen body is further provided with a spring support.

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