A multi-stage detection and screening device for magnesite cylindrical screen

Abstract

The utility model provides a kind of magnesite cylinder screen multistage detection screening device, belong to ore screening technical field, comprising: inner layer cylinder screen, outer layer cylinder screen, transmission mechanism, support assembly, first discharge plate, second discharge plate and laser detector;Inner layer cylinder screen is arranged in outer layer cylinder screen, and the screen hole diameter of inner layer cylinder screen is greater than the screen hole diameter of outer layer cylinder screen;Transmission mechanism is arranged in the side of rack, and transmission mechanism is used to drive outer layer cylinder screen and inner layer cylinder screen rotation;Support assembly is arranged in the other side of rack;The effect of screening material is realized by transmission structure driving outer layer cylinder screen and inner layer cylinder screen rotation in this application, the central rotating shaft arranged in traditional cylinder screen is discarded, the problem that magnesite material is difficult to discharge and adheres on rotating shaft is avoided, and by setting laser detector at first discharge plate and second discharge plate, the particle size of screened material can be continuously detected, and the hysteresis of manual sampling detection is solved.

Description

Technical Field

[0001] This utility model belongs to the field of ore screening technology, specifically relating to a multi-stage detection and screening device for magnesite cylindrical screen. Background Technology

[0002] Magnesite, as an important non-metallic mineral resource, is widely used in refractory materials, building materials and chemical industries. In the magnesite processing, screening is a key pretreatment step that directly affects the quality of subsequent products and production efficiency.

[0003] Patent application number 202122573848.1 proposes a multi-stage cylindrical screen that meets the screening needs of various particulate matter. Furthermore, this multi-stage cylindrical screen achieves screening through shaft rotation, avoiding the need for vibrating motors at each screen in related technologies. It features a simple structure, low cost, stable and reliable operation, convenient maintenance, and reduced operating costs.

[0004] However, there are still certain limitations in the existing technology. On the one hand, it lacks real-time online detection function, and the particle size of the material cannot be continuously monitored during the screening process. It is necessary to rely on manual sampling and testing, which leads to the lag in detection results and makes it difficult to adjust the screening parameters in time. On the other hand, the cylindrical screen structure usually has a central rotating shaft, which easily causes the magnesite material to adhere to the rotating shaft and is not easy to discharge. Long-term use not only affects the screening efficiency, but also increases the difficulty of cleaning and maintenance. Utility Model Content

[0005] Based on the above-mentioned technical problems, the purpose of this utility model is to provide a multi-stage detection and screening device for magnesite cylindrical screens. This application achieves the effect of screening materials by driving the outer and inner cylindrical screens to rotate through a transmission structure. It eliminates the central rotating shaft set in the traditional cylindrical screen, avoiding the problem of magnesite material sticking to the rotating shaft and being difficult to discharge. Furthermore, by setting laser detectors at the first and second discharge plates, the particle size of the screened material can be continuously detected, solving the lag of manual sampling and detection.

[0006] The specific technical solution is as follows: A multi-stage screening device for magnesite using a cylindrical screen includes: an inner cylindrical screen, an outer cylindrical screen, a transmission mechanism, a support assembly, a first discharge plate, a second discharge plate, and a laser detector. The inner cylindrical screen is disposed inside the outer cylindrical screen, and the diameter of the screen openings of the inner cylindrical screen is larger than that of the outer cylindrical screen. The transmission mechanism is disposed on one side of the frame and is used to drive the outer and inner cylindrical screens to rotate. The support assembly is disposed on the other side of the frame and supports the outer cylindrical screen. The first and second discharge plates are respectively positioned opposite the inner and outer cylindrical screens, and laser detectors are provided on both sides of the first and second discharge plates.

[0007] In addition, the magnesite cylindrical screen multi-stage detection and screening device provided by this utility model may also have the following additional technical features: In the above technical solution, the transmission mechanism includes: a motor, a first gear and a second gear. The motor is fixed on the frame, and the output end of the motor is connected to the first gear. The second gear is sleeved on the outside of the outer cylindrical screen, and the second gear meshes with the first gear for transmission.

[0008] In the above technical solution, the support assembly includes: a first roller ring, a second roller ring, two first support rollers and two second support rollers; the first roller ring and the second roller ring are respectively disposed on both sides of the outer cylindrical screen, the two first support rollers and the second support rollers are respectively disposed on the frame, and the first roller ring and the second roller ring cooperate with the two first support rollers and the two second support rollers respectively.

[0009] In the above technical solution, both the first discharge plate and the second discharge plate have arc-shaped cross sections, and the first discharge plate is located above the second discharge plate.

[0010] The above technical solution also includes: a mounting frame and a hydraulic cylinder; the mounting frame is set on one side of the machine frame, the first discharge plate and the second discharge plate are respectively fixed on the mounting frame, the hydraulic cylinder is set on one side of the mounting frame, and the telescopic end of the hydraulic cylinder is connected to the mounting frame.

[0011] In the above technical solution, both the inner and outer cylindrical screens are inclined downwards.

[0012] In the above technical solution, the inner cylindrical screen and the outer cylindrical screen are connected by a connecting frame.

[0013] The multi-stage detection and screening device for magnesite cylindrical screen of this utility model has the following advantages compared with the prior art: 1. By using the nested structure of the inner and outer cylindrical screens, multi-stage screening from large to small is achieved, avoiding the particle size mixing problem of traditional single-stage screening and improving screening efficiency.

[0014] 2. By setting laser detectors at the first and second discharge plates, the particle size of the screened material can be continuously detected, solving the problems of lag and error in manual sampling and detection.

[0015] 3. The transmission structure drives the outer and inner cylindrical screens to rotate, achieving the effect of screening materials. This eliminates the central rotating shaft set in traditional cylindrical screens, avoiding the problem of magnesite material sticking to the rotating shaft and being difficult to discharge. It ensures smooth material flow, thereby avoiding the problem of decreased screening efficiency due to long-term use, and also reduces the difficulty of cleaning and maintenance. Attached Figure Description

[0016] Figure 1 This is a front view of a multi-stage detection and screening device for magnesite cylindrical screen according to the present invention; Figure 2 This is a schematic diagram of the structure of a multi-stage detection and screening device for magnesite cylindrical screen according to the present invention; in, Figures 1 to 2 The correspondence between the reference numerals and component names in the attached drawings is as follows: 10 Inner cylindrical screen, 11 Outer cylindrical screen, 12 First discharge plate, 13 Second discharge plate, 14 Laser detector, 15 Motor, 16 First gear, 17 Second gear, 18 First roller ring, 19 Second roller ring, 20 First support roller, 21 Second support roller, 22 Mounting frame, 23 Hydraulic cylinder, 24 Connecting frame, 25 Pulley, 26 Frame, 27 First receiving box, 28 Second receiving box. Detailed Implementation

[0017] The following are specific implementation cases and appendices. Figure 1-2 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0018] A multi-stage detection and screening device for magnesite cylindrical screen, such as Figure 1-2 As shown, the system includes: an inner cylindrical screen 10, an outer cylindrical screen 11, a transmission mechanism, a support assembly, a first discharge plate 12, a second discharge plate 13, and a laser detector 14; the inner cylindrical screen 10 is disposed inside the outer cylindrical screen 11, and the diameter of the screen holes of the inner cylindrical screen 10 is larger than the diameter of the screen holes of the outer cylindrical screen 11; the transmission mechanism is disposed on one side of the frame 26, and the transmission mechanism is used to drive the outer cylindrical screen 11 and the inner cylindrical screen 10 to rotate; the support assembly is disposed on the other side of the frame 26, and supports the outer cylindrical screen 11; the first discharge plate 12 and the second discharge plate 13 are respectively positioned opposite to the inner cylindrical screen 10 and the outer cylindrical screen 11, and laser detectors 14 are provided on both sides of the first discharge plate 12 and the second discharge plate 13.

[0019] With the above structure, the crushed material in the magnesite crushing box enters the inner cylindrical screen 10. The transmission mechanism drives the inner cylindrical screen 10 and the outer cylindrical screen 11 to rotate, performing multi-stage screening of the material. Larger particles remain in the inner cylindrical screen 10, while smaller particles pass through the screen holes of the inner cylindrical screen 10 and remain in the outer cylindrical screen 11. The material in both the inner and outer cylindrical screens 11 slides downward and falls onto the first discharge plate 12 and the second discharge plate 13 respectively, thereby avoiding all the material from mixing together and improving the screening efficiency.

[0020] The nested structure of the inner cylindrical sieve 10 and the outer cylindrical sieve 11 enables multi-stage screening from large to small particles, avoiding the particle size mixing problem of traditional single-stage screening and improving screening efficiency.

[0021] By installing laser detectors 14 on both sides of the first discharge plate 12 and the second discharge plate 13, the particle size of the screened material is continuously detected, which completely solves the problem of lag in manual sampling and detection. The data on screening quality can be fed back in real time so that the staff can adjust the screening parameters in a timely manner.

[0022] Specifically, the outer cylindrical screen 11 and the inner cylindrical screen 10 are driven to rotate by the transmission structure to achieve the effect of screening materials. This eliminates the central rotating shaft set in the traditional cylindrical screen, avoids the problem of magnesite material sticking to the rotating shaft and being difficult to discharge, ensures smooth material flow, and avoids the problem of decreased screening efficiency due to long-term use, while also reducing the difficulty of cleaning and maintenance.

[0023] Specifically, the laser detector 14 is a laser / image particle size and shape analyzer of model Bettersize3000Plus manufactured by Dandong Bettersize Instruments Co., Ltd.

[0024] In an embodiment of this utility model, the transmission mechanism includes: a motor 15, a first gear 16 and a second gear 17. The motor 15 is fixed on the frame 26, and the output end of the motor 15 is connected to the first gear 16. The second gear 17 is sleeved on the outside of the outer cylindrical screen 11, and the second gear 17 meshes with the first gear 16 for transmission.

[0025] The motor 15 operates, driving the first gear 16 to rotate. The first gear 16 meshes with the second gear 17, thereby driving the outer cylindrical screen 11 and the inner cylindrical screen 10 to rotate, and performing grading and screening operations on the materials.

[0026] In an embodiment of this utility model, the support assembly includes: a first roller ring 18, a second roller ring 19, two first support rollers 20, and two second support rollers 21; the first roller ring 18 and the second roller ring 19 are respectively disposed on both sides of the outer cylindrical screen 11, the two first support rollers 20 and the second support rollers 21 are respectively disposed on the frame 26, and the first roller ring 18 and the second roller ring 19 cooperate with the two first support rollers 20 and the two second support rollers 21 respectively.

[0027] By engaging the first roller ring 18 and the second roller ring 19 with the first support roller 20 and the second support roller 21 respectively, when the motor 15 drives the outer cylindrical screen 11 to rotate, the first roller ring 18 and the second roller ring 19 rotate along the first support roller 20 and the second support roller 21, thereby achieving the purpose of providing auxiliary support for the outer cylindrical screen 11 and improving the stability of the outer cylindrical screen 11 during rotation.

[0028] In an embodiment of this utility model, the first discharge plate 12 and the second discharge plate 13 have arc-shaped cross sections, and the first discharge plate 12 is located above the second discharge plate 13.

[0029] By setting both the first discharge plate 12 and the second discharge plate 13 to be arc-shaped, the material is prevented from flying out as it slides down the first discharge plate 12 and the second discharge plate 13.

[0030] In an embodiment of this utility model, it further includes: a mounting frame 22 and a hydraulic cylinder 23; the mounting frame 22 is disposed on one side of the frame 26, the first discharge plate 12 and the second discharge plate 13 are respectively fixed on the mounting frame 22, the hydraulic cylinder 23 is disposed on one side of the mounting frame 22, and the telescopic end of the hydraulic cylinder 23 is connected to the mounting frame 22.

[0031] The hydraulic cylinder 23 extends and retracts, driving the mounting frame 22 to move back and forth, thereby bringing the first discharge plate 12 and the second discharge plate 13 closer to or further away from the outer cylindrical screen 11 and the inner cylindrical screen 10, so as to carry out maintenance or cleaning operations on the outer cylindrical screen 11 and the inner cylindrical screen 10.

[0032] Specifically, the mounting bracket 22 is provided with pulleys 25 at the bottom, thereby improving the flexibility of the mounting bracket 22 when moving.

[0033] Specifically, the mounting frame 22 is also equipped with a first receiving box 27 and a second receiving box 28. The materials sliding down along the first discharge plate 12 and the second discharge plate 13 enter the first receiving box 27 and the second receiving box 28 respectively. The first receiving box 27 and the second receiving box 28 are set on the mounting frame 22. When the cylindrical screen needs to be repaired or cleaned, the mounting frame 22 is driven away from the cylindrical screen area by the hydraulic cylinder 23, which at the same time drives the first receiving box 27 and the second receiving box 28 to move. There is no need for the staff to manually move the receiving boxes, thereby reducing the labor of the staff.

[0034] In the embodiments of this utility model, both the inner cylindrical sieve 10 and the outer cylindrical sieve 11 are inclined downwards.

[0035] By tilting both the inner cylindrical screen 10 and the outer cylindrical screen 11 downwards, it is easier for the material inside the inner cylindrical screen 10 and the outer cylindrical screen 11 to slide down.

[0036] Specifically, the frame 26 includes a base and a support column. The base is used to place components such as the transmission mechanism and support components, and the support column is used to support the base. By designing the base and the support column as a hinge structure, it is convenient for the staff to adjust the tilt angle of the base and the components located on the base according to the actual use needs. After the staff adjusts the tilt angle of the base, they insert the fixing pin to fix the position of the base.

[0037] In an embodiment of this utility model, the inner cylindrical screen 10 and the outer cylindrical screen 11 are connected by a connecting frame 24.

[0038] The inner cylindrical screen 10 and the outer cylindrical screen are connected together by the connecting frame 24, and the connecting frame 24 is set on both sides of the inner cylindrical screen 10 and the outer cylindrical screen to reduce the contact between the material in the inner cylindrical screen 10 and the outer cylindrical screen and the connecting frame 24 during the screening process.

[0039] Implementation Process: After crushing, the material in the magnesite crushing box enters the inner cylindrical screen 10. A transmission mechanism drives the inner and outer cylindrical screens 11 to rotate, performing multi-stage screening. Larger particles remain in the inner cylindrical screen 10, while smaller particles pass through the screen openings and remain in the outer cylindrical screen 11. The material in both the inner and outer cylindrical screens 11 slides downwards and falls onto the first discharge plate 12 and the second discharge plate 13, respectively, thus preventing all materials from mixing and improving screening efficiency. Laser detectors 14 are installed on both sides of the first and second discharge plates 12 and 13 to continuously monitor the particle size of the screened material, completely solving the problem of lag in manual sampling and testing. Real-time feedback of screening quality data allows staff to adjust screening parameters promptly.

[0040] Specifically, the screening parameters include the tilt angle of the cylindrical screen, the rotation speed of the cylindrical screen, and the aperture of the screen holes. The operator can adjust the tilt angle of the cylindrical screen by adjusting the tilt angle of the base of the frame 26, adjust the rotation speed of the cylindrical screen by adjusting the speed of the motor 15, and adjust the aperture of the screen holes by replacing it with other models of cylindrical screens.

[0041] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-stage detection and screening device for magnesite cylindrical screen, characterized in that, include: The system comprises an inner cylindrical screen, an outer cylindrical screen, a transmission mechanism, a support assembly, a first discharge plate, a second discharge plate, and a laser detector. The inner cylindrical screen is disposed inside the outer cylindrical screen, and the diameter of the screen holes of the inner cylindrical screen is larger than that of the outer cylindrical screen. The transmission mechanism is disposed on one side of the frame and is used to drive the outer and inner cylindrical screens to rotate. The support assembly is disposed on the other side of the frame and supports the outer cylindrical screen. The first and second discharge plates are respectively positioned opposite the inner and outer cylindrical screens, and laser detectors are provided on both sides of the first and second discharge plates.

2. The magnesite cylindrical screen multi-stage detection and screening device according to claim 1, characterized in that, The transmission mechanism includes a motor, a first gear, and a second gear. The motor is fixed on the frame, and the output end of the motor is connected to the first gear. The second gear is sleeved on the outside of the outer cylindrical screen, and the second gear meshes with the first gear for transmission.

3. The magnesite cylindrical screen multi-stage detection and screening device according to claim 1, characterized in that, The support assembly includes: a first roller ring, a second roller ring, two first support rollers, and two second support rollers; the first roller ring and the second roller ring are respectively disposed on both sides of the outer cylindrical screen, the two first support rollers and the second support rollers are respectively disposed on the frame, and the first roller ring and the second roller ring cooperate with the two first support rollers and the two second support rollers respectively.

4. The magnesite cylindrical screen multi-stage detection and screening device according to claim 1, characterized in that, Both the first and second discharge plates have arc-shaped cross sections, and the first discharge plate is located above the second discharge plate.

5. The magnesite cylindrical screen multi-stage detection and screening device according to claim 1, characterized in that, Also includes: The mounting frame and the hydraulic cylinder are provided. The mounting frame is located on one side of the machine frame. The first discharge plate and the second discharge plate are respectively fixed on the mounting frame. The hydraulic cylinder is located on one side of the mounting frame, and the telescopic end of the hydraulic cylinder is connected to the mounting frame.

6. The magnesite cylindrical screen multi-stage detection and screening device according to claim 1, characterized in that, Both the inner and outer cylindrical screens are inclined downwards.

7. The magnesite cylindrical screen multi-stage detection and screening device according to claim 1, characterized in that, The inner cylindrical screen and the outer cylindrical screen are connected by a connecting frame.

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