Ear-type intelligent back material detecting real-time control mechanism

By using an ear-type intelligent detection and real-time control mechanism for return material, and utilizing light detection and buffer plate technology, the problem of high empty running rate of the return material mechanism is solved, achieving efficient material handling and energy saving.

CN224376821UActive Publication Date: 2026-06-19TONGLING TONGGUAN JIANAN NEW ENVIRONMENTAL PROTECTION BUILDING MATERIALS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-06-19

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Abstract

This utility model relates to the technical field of return material devices, specifically an ear-type intelligent detection and real-time control mechanism for return materials. It includes a return material pipe with a detection component connected to it. One end of the return material pipe is inclined downwards and has a return material outlet, with the return material conveyor positioned below the outlet. This ear-type intelligent detection and real-time control mechanism, through the detection component, can control the start and stop of the return material conveyor. When no material is being returned, the conveyor remains stopped, preventing idling and saving energy. It also prevents unprocessed returned material from clogging the return material outlet.
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Description

Technical Field

[0001] This utility model relates to the technical field of return material devices, specifically an ear-type intelligent detection and real-time control mechanism for return materials. Background Technology

[0002] Grinding equipment is a device that grinds lumpy and granular materials into powder. During the operation of the grinding mill, some coarse particles that are not fully ground or do not meet the particle size requirements of the finished product will be separated by the vertical mill.

[0003] Currently, there are two ways to handle this part of the material. The first way is to temporarily store the material in the material pit. After the material in the material pit accumulates to a certain amount, it is then transported to the raw material area, so that this part of the material is transported back to the grinding mill along with the raw material that has not yet been ground. However, if the material accumulated in the material pit is not cleaned in time, it will cause blockage at the return port of the mill, affecting its use.

[0004] The second method involves using a conveyor to return this material to the mill for secondary grinding in real time. However, this method requires the return mechanism to operate continuously; that is, the return mechanism works for the same amount of time the vertical mill is running. Due to the control of raw material quality and the normal operation of the equipment, unqualified material is not always produced during the actual grinding process. Therefore, the conveyor mechanism actually runs idle most of the time, with a utilization efficiency of less than 5%, resulting in resource waste. In view of this, we propose an ear-type intelligent detection and real-time control mechanism for the return material. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide an ear-type intelligent detection and return material real-time control mechanism, which solves the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An ear-type intelligent detection and real-time control mechanism for return material includes a return material pipe, a detection component is provided on the return material pipe, the detection component is connected to a return material conveyor, one end of the return material pipe is inclined downward and is provided with a return material port, and the return material conveyor is located below the return material port.

[0008] Preferably, the detection component includes a light emitting module and a light receiving module disposed on opposite sides of the return material port, the light emitting module and the light receiving module being at the same horizontal height, and the light receiving module being electrically connected to the return material conveyor.

[0009] Preferably, the control mechanism further includes two ear-shaped flat plates mounted on the return pipe, and the light emitting module and the light receiving module are respectively mounted on the two ear-shaped flat plates.

[0010] Preferably, the return port has a rectangular structure, and a buffer plate is installed at the bottom of the return port.

[0011] Preferably, the buffer plate includes a fixed plate and a movable plate. One end of the fixed plate is fixedly installed on the return pipe. The upper surface of the movable plate forms an angle of °-° with the upper surface of the fixed plate, and the movable plate can rotate relative to the fixed plate.

[0012] Preferably, a support shaft is fixedly connected to both sides of the fixed plate, and a rotating block is rotatably connected to the surface of the support shaft. The rotating block is connected to the fixed plate through a torsion spring.

[0013] By employing the above technical solution, this utility model provides an ear-type intelligent detection and real-time control mechanism for return materials. It possesses at least the following beneficial effects:

[0014] (1) The ear-type intelligent detection and real-time control mechanism for return material can control the start and stop of the return material conveyor by setting detection components, so that the return material conveyor can remain in a stopped state when no material is returned, avoiding idling and thus saving energy. At the same time, it can also prevent the returned material from being blocked by not being processed in time.

[0015] (2) The ear-type intelligent detection return material real-time control mechanism can extend the dwell time of the material between the light emitting module and the light receiving module by setting a buffer plate at the return material port, thereby improving the accuracy of detection and ensuring the control effect of the detection component on the return material conveyor. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0018] Figure 2 This is a schematic diagram of the detection component and the return conveyor in Embodiment 1 of this utility model;

[0019] Figure 3 This is a schematic diagram of the detection component in Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the buffer plate in Embodiment 2 of this utility model;

[0021] Figure 5 This is a schematic diagram of the buffer plate in Embodiment 3 of this utility model;

[0022] Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Vertical mill; 2. Return pipe; 201. Return port; 3. Return conveyor; 4. Detection component; 401. Ear-type flat plate support; 402. Light emitting module; 403. Light receiving module; 5. Buffer plate; 501. Fixed plate; 502. Movable plate; 503. Support shaft; 504. Rotating block; 505. Torsion spring; 6. Storage hopper; 7. Elevator; 8. Conveying mechanism. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1-3 This embodiment provides an ear-type intelligent detection and real-time control mechanism for return material, including a vertical mill 1. A return material pipe 2 is connected to the vertical mill 1. During the operation of the vertical mill 1, some coarse particles that are not sufficiently ground or materials that do not meet the particle size requirements of the finished product will be discharged from the return material pipe 2. A return material conveyor 3 is provided below one end of the return material pipe 2. A storage hopper 6 is provided below the end of the return material conveyor 3 away from the return material pipe 2. An elevator 7 is provided at the bottom of the storage hopper 6. A conveying mechanism 8 is provided at one end of the elevator 7, thereby conveying the return material back to the feed inlet of the vertical mill 1.

[0027] The return pipe 2 is equipped with a detection component 4, which is electrically connected to the return conveyor 3. One end of the return pipe 2 is inclined downward and is provided with a return port 201. The return conveyor 3 is located below the return port 201. The return conveyor 3 is a motor-controlled belt conveyor. The start and stop of the return conveyor 3 can be controlled by the detection component 4, so that the return conveyor 3 can remain stopped when no material is returned, thus avoiding idling.

[0028] Specifically, the detection component 4 in this embodiment includes a light emitting module 402 and a light receiving module 403 disposed on opposite sides of the return port 201. The light emitting module 402 and the light receiving module 403 are at the same horizontal height. The light receiving module 403 is electrically connected to the return conveyor 3. The return of materials is sensed and monitored by the beam of light emitted between the light emitting module 402 and the light receiving module 403. When material falls from the return port 201, it blocks the monitoring beam, causing an interruption in the beam reception. At this point, the return phenomenon is detected, and the photoelectric switch immediately transmits a signal to the return conveyor 3, which then starts and runs. The beam monitoring has high sensitivity and rapid response, effectively detecting material return and quickly feeding back the start signal to the return conveyor 3, prompting it to start promptly.

[0029] Furthermore, the control mechanism also includes two ear-type flat plate supports 401 installed on the return pipe 2, and the light emitting module 402 and the light receiving module 403 are respectively installed on the two ear-type flat plate supports 401, so that the light emitting module 402 and the light receiving module 403 remain stable.

[0030] To ensure thorough return material transport, the control module can implement a delay control based on the time it takes for the return conveyor belt to complete one revolution, stopping the belt operation after approximately 8 seconds to ensure that all returned material on the belt is transported to the storage hopper 6. This allows the return conveyor 3 to start promptly during return material transport, returning the material to the storage hopper 6 for repeated recycling. When there is no return material, it stops and waits. This achieves precise control, saves energy, minimizes unnecessary wear on the return conveyor belt and other mechanical parts, and effectively reduces costs and increases efficiency.

[0031] Example 2

[0032] Please see Figure 4 Based on Example 1, the return port 201 is a flat rectangular structure with an aspect ratio of not less than 3.5. A buffer plate 5 is installed at the bottom of the return port 201. One end of the buffer plate 5 is fixedly connected to one end of the return pipe 2, so that after the material slides out of the return pipe 2, it can continue to move a certain distance on the buffer plate 5, prolonging the dwell time of the material between the light emitting module 402 and the light receiving module 403, and improving the accuracy of detection.

[0033] Example 3

[0034] Please see Figures 5-6Based on Example 2, the buffer plate 5 has a split structure, including a fixed plate 501 and a movable plate 502. One end of the fixed plate 501 is fixedly installed on the return pipe 2, and the movable plate 502 is located on the end of the fixed plate 501 away from the return pipe 2. Specifically, support shafts 503 are fixedly connected to both sides of the fixed plate 501, and rotating blocks 504 are rotatably connected to the surfaces of the two support shafts 503. The rotating blocks 504 are connected to the fixed plate 501 through torsion springs 505, so that the movable plate 502 has a certain elastic rotation capability. Through the elastic force of the torsion springs 505, the upper surface of the movable plate 502 forms an angle of 150°-180° with the upper surface of the fixed plate 501. After the material enters between the movable plate 502 and the fixed plate 501, its movement speed can be buffered to further improve the accuracy of detection.

[0035] In use, the ear-type intelligent detection and real-time control mechanism for return material of this utility model allows for the return of some coarse particles or materials that do not meet the particle size requirements of the finished product during the operation of the vertical mill 1. This material is discharged from the return pipe 2 and falls onto the fixed plate 501 from the discharge outlet of the return pipe 2. It then moves from the fixed plate 501 to the movable plate 502. Because there is a concave angle between the movable plate 502 and the fixed plate 501, the movement speed of the material is buffered. At this time, the light emitted by the light emitting module 402 is blocked by the material, causing the light receiving module 403 to interrupt its sensing. The light receiving module 403 then transmits a signal to the return conveyor 3 via a photoelectric switch, controlling the operation of the return conveyor 3. Finally, the material falls onto the return conveyor 3 via the movable plate 502 for return.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ear-type intelligent detection and real-time control mechanism for return material, comprising a return material pipe (2), characterized in that, The return pipe (2) is provided with a detection component (4), the detection component (4) is connected to a return conveyor (3), one end of the return pipe (2) is inclined downward and is provided with a return port (201), the return conveyor (3) is located below the return port (201), the return port (201) is a rectangular structure, and a buffer plate (5) is installed at the bottom of the return port (201).

2. The ear-type intelligent detection and return material real-time control mechanism according to claim 1, characterized in that, The detection component (4) includes a light emitting module (402) and a light receiving module (403) disposed on opposite sides of the return port (201). The light emitting module (402) and the light receiving module (403) are at the same horizontal height. The light receiving module (403) is electrically connected to the return conveyor (3).

3. The ear-type intelligent detection and return material real-time control mechanism according to claim 2, characterized in that, The control mechanism also includes two ear-type flat plate holders (401) installed on the return pipe (2), and the light emitting module (402) and the light receiving module (403) are respectively installed on the two ear-type flat plate holders (401).

4. The ear-type intelligent detection and return material real-time control mechanism according to claim 1, characterized in that, The buffer plate (5) includes a fixed plate (501) and a movable plate (502). One end of the fixed plate (501) is fixedly installed on the return pipe (2). The upper surface of the movable plate (502) forms an angle of 150°-180° with the upper surface of the fixed plate (501). The movable plate (502) can rotate relative to the fixed plate (501).

5. The ear-type intelligent detection and return material real-time control mechanism according to claim 4, characterized in that, Both sides of the fixed plate (501) are fixedly connected to support shafts (503), and rotating blocks (504) are rotatably connected to the surface of the support shafts (503). The rotating blocks (504) are connected to the fixed plate (501) through torsion springs (505).