A crusher anti-jamming system

Abstract

The utility model discloses a kind of anti-blocking systems of crusher, belong to the technical field of crusher, including front-end control system, rear-end control cabinet and the remote feeder, incoming material belt conveyor, screening machine and crusher sequentially arranged, the front-end control system is respectively connected with rear-end control cabinet, remote feeder, incoming material belt conveyor, screening machine and crusher electric signal, the current value of the crusher is monitored in real time by current sensor;Screening plate assembly for facilitating cleaning is provided in the crusher.The utility model can be linked to the automatic start-stop of front-end screening machine, incoming material belt conveyor, remote feeder and other related equipment by monitoring the current value of crusher, realize the linkage of entire coal conveying system;Meanwhile, it can be effectively cleaned when the crusher is blocked, so as to better meet the operation of crusher.

Description

Technical Field

[0001] This utility model belongs to the field of crusher technology, and in particular relates to a crusher anti-clogging system. Background Technology

[0002] During daily production, if the feed flow is too large or the material cannot be discharged in time after crushing, a large amount of coal will accumulate in the crusher chamber, causing blockage. The smoothness of the feed directly affects the overall production efficiency of the crusher. Too much feed may cause blockage, resulting in prolonged downtime for maintenance; too little feed will result in low crusher operating efficiency, thus affecting the production efficiency of the entire production line. When blockage occurs during the crushing process, it cannot be detected manually in time, causing the feed end to continue feeding, ultimately leading to severe blockage of the crusher.

[0003] Therefore, a crusher anti-clogging system is needed, which can automatically start and stop related equipment such as the front-end screening machine, the incoming conveyor belt, and the remote feeder by monitoring the crusher's current value, so as to realize the linkage of the entire coal conveying system; at the same time, it can effectively clear the blockage when the crusher is blocked, so as to better meet the operation of the crusher. Utility Model Content

[0004] The purpose of this utility model is to provide a crusher anti-blocking system, which intelligently adjusts the operation of the feeding end, belt conveyor and screening machine by monitoring the current of the crusher's main motor to avoid blockage caused by excessive feeding; and to prevent the crusher from continuing to feed when blocked; and to effectively clear the blockage when the crusher is blocked, so as to better meet the operation of the crusher.

[0005] The objective of this utility model is achieved through the following technical solution: A crusher anti-clogging system includes a front-end control system, a rear-end control cabinet, and a remote feeder, an incoming material conveyor, a screening machine, and a crusher arranged in sequence. The front-end control system is electrically connected to the rear-end control cabinet, the remote feeder, the incoming material conveyor, the screening machine, and the crusher, respectively. The crusher monitors the current value of the crusher in real time through a current sensor.

[0006] Furthermore, the crusher is also equipped with a drive shaft temperature sensor, a drive shaft vibration sensor, a driven shaft temperature sensor, and a driven shaft vibration sensor.

[0007] Furthermore, the crusher is provided with a crushing rotor mechanism and an arc-shaped screen plate located below the crushing rotor mechanism. The arc-shaped screen plate is composed of two arc-shaped screen plates joined together. The far ends of the two screen plates are hinged to the crusher housing. The abutment of the two screen plates is located directly below the crushing rotor mechanism. Each of the two screen plates is provided with a swinging mechanism.

[0008] Furthermore, the swing mechanism includes a telescopic cylinder and a connecting rod. The two connecting rods are respectively located at the middle of the same side of the two screen plates and extend out of the crusher housing. The telescopic cylinder is located outside the crusher housing. One end of the piston rod of the telescopic cylinder is hinged to the connecting rod, and one end of the cylinder body of the telescopic cylinder is hinged to the crusher housing.

[0009] Furthermore, the shell of the crusher is provided with an arc-shaped groove for the connecting rod to swing, and a sliding door that slides horizontally outside the arc-shaped groove is provided.

[0010] Furthermore, an inspection door is provided on one side of the crusher housing at the connection point of the two screen plates, a hinge is provided below the inspection door, and a fixing pin is provided above the inspection door.

[0011] The beneficial effects of this utility model are: 1) It can automatically start and stop related equipment such as front-end screening machine, material conveyor belt, and remote feeder by monitoring the current value of the crusher, so as to realize the linkage of the entire coal conveying system.

[0012] 2) The two screen plates open and close via a swing mechanism. During crushing, the two screen plates are connected and pressed together by the swing mechanism to maintain their stability. At this time, the crushing rotor rotates and crushes the material above the screen plates, causing small particles to fall through the screen holes. When material blockage occurs in the crusher chamber, the swing mechanism pulls the two screen plates apart to the sides, allowing the material to fall quickly off the screen plates for easy manual cleaning and reducing blockage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a crusher anti-clogging system according to the present invention; Figure 2 This is a PLC wiring diagram for a crusher anti-clogging system according to this utility model; Figure 3 This is a PLC wiring diagram for the drive shaft temperature sensor, drive shaft vibration sensor, driven shaft temperature sensor, and driven shaft vibration sensor in this utility model. Figure 4 This is a control diagram of a crusher anti-clogging system according to the present invention; Figure 5 This is a schematic diagram of the back-end control cabinet of this utility model; Figure 6 This is a schematic diagram of the crusher in this utility model; Figure 7 This is a front view of the crusher in this utility model; Figure 8 This is a side view of the crusher in this utility model; In the diagram, 1-crusher, 2-crushing rotor mechanism, 3-screen plate, 31-connecting rod, 32-arc groove, 4-telescopic cylinder, 5-sliding door, 6-maintenance door. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] See Figures 1-8 This utility model provides a technical solution: like Figures 1-5 As shown, a crusher anti-clogging system includes a front-end control system, a rear-end control cabinet, and a remote feeder, a material conveyor belt, a screening machine, and a crusher 1 arranged in sequence. The front-end control system is electrically connected to the rear-end control cabinet, the remote feeder, the material conveyor belt, the screening machine, and the crusher 1, respectively. The crusher 1 monitors the current value of the crusher 1 in real time through a current sensor.

[0016] Through the above technical solution, the normal current value range and alarm current value range of crusher 1 are preset in the front-end control system, and the corresponding signals are programmed into the system. Under the interlocked automatic control state, when the current sensor detects that the current of crusher 1 reaches a certain value and a certain time, it triggers the front-end control system to give the relevant front-end equipment stop signal, immediately stopping the screening machine, the incoming belt conveyor and the remote feeder in sequence, while keeping crusher 1 running. When the material in the crushing chamber of crusher 1 is emptied and the current returns to normal, the front-end control system is triggered to give the relevant front-end equipment start signal, and the screening machine, belt conveyor and feeder are started in sequence. If the material cannot be discharged within the set time range and the current still cannot return to normal, the crusher 1 will be triggered to immediately stop, and the red light on the back-end control cabinet will continue to flash.

[0017] As can be seen, this system can implement automatic interlock control as well as manual intervention control. All of the above signals are displayed on the front-end control system and the back-end control cabinet, which facilitates manual troubleshooting.

[0018] Furthermore, the crusher 1 is also equipped with a drive shaft temperature sensor, a drive shaft vibration sensor, a driven shaft temperature sensor, and a driven shaft vibration sensor. By setting these sensors, the operating status of the crusher 1 can be detected from multiple angles, ensuring the stable operation of the crusher 1.

[0019] like Figure 6-8As shown, when the crusher 1 stops blocking material, the screen plate 3 assembly in this solution enables rapid material removal. Specifically, the crusher 1 is equipped with a crushing rotor mechanism 2 and an arc-shaped screen plate 3 located below the crushing rotor mechanism 2. The arc-shaped screen plate 3 is composed of two arc-shaped screen plates 3 joined together. The far ends of the two screen plates 3 are hinged to the shell of the crusher 1. The abutment of the two screen plates 3 is located directly below the crushing rotor mechanism 2. Both screen plates 3 are equipped with a swing mechanism.

[0020] With the above technical solution, under normal operating conditions of the crusher 1, the two screen plates 3 are connected and pressed together by the swing mechanism to maintain the stability of the screen plates 3. At this time, the crushing rotor mechanism 2 rotates and crushes the material above the screen plates 3, causing small particles to fall through the screen holes of the screen plates 3. When material blockage occurs in the crusher 1 chamber, the swing mechanism pulls the two screen plates 3 apart to both sides, allowing the material to fall quickly off the screen plates 3, facilitating manual cleaning and reducing material blockage.

[0021] Furthermore, the swing mechanism includes a telescopic cylinder 4 and connecting rods 31. The two connecting rods 31 are respectively located at the middle of the same side of the two screen plates 3 and extend out of the crusher 1 housing. The telescopic cylinder 4 is located outside the crusher 1 housing. One end of the piston rod of the telescopic cylinder 4 is hinged to the connecting rod 31, and one end of the cylinder body of the telescopic cylinder 4 is hinged to the crusher 1 housing. The crusher 1 housing is provided with an arc-shaped groove 32 for the connecting rods 31 to swing, and a horizontally sliding door 5 is provided outside the arc-shaped groove 32.

[0022] Through the above technical solution, since the telescopic cylinder 4 is connected to the middle of the screen plate 3 via the connecting rod 31, and one end of the screen plate 3 is hinged to the crusher 1, the screen plate 3 swings by the extension and retraction of the telescopic cylinder 4, allowing the two sets of screen plates 3 to open and close to achieve material discharge. Simultaneously, since the telescopic cylinder 4 is located outside the housing, a sliding groove corresponding to the trajectory of the connecting rod 31 is provided to facilitate the swinging of the connecting rod 31, and a sliding door 5 is provided for sealing. Under normal operation of the crusher 1, the connecting rod 31 is located at one end of the sliding groove, at which point the sliding door 5 blocks the remaining part of the sliding groove, preventing material from falling out of the crusher 1. When it is necessary to clean the crusher 1, the sliding door 5 is opened, and the telescopic cylinder 4 drives the connecting rod 31 to the other end of the sliding groove, at which point the two sets of screen plates 3 separate.

[0023] Furthermore, a maintenance door 6 is provided on one side of the shell of the crusher 1 at the connection point of the two screen plates 3. A hinge is provided below the maintenance door 6, and a fixing pin is provided above the maintenance door 6.

[0024] With the above technical solution, when cleaning the excess material inside the crusher 1, the two screen plates 3 are fully opened by the telescopic cylinder 4, and the material falls to the bottom of the crusher 1. At this time, opening the inspection door 6 can facilitate cleaning the material, and the downward-folding inspection door 6 can also facilitate scraping the material out.

[0025] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A crusher anti-clogging system, characterized in that: It includes a front-end control system, a back-end control cabinet, and a remote feeder, a material conveyor belt, a screening machine and a crusher (1) arranged in sequence. The front-end control system is electrically connected to the back-end control cabinet, the remote feeder, the material conveyor belt, the screening machine and the crusher (1) respectively. The crusher (1) monitors the current value of the crusher (1) in real time through a current sensor.

2. The anti-clogging system for crushers according to claim 1, characterized in that: The crusher (1) is also equipped with a drive shaft temperature sensor, a drive shaft vibration sensor, a driven shaft temperature sensor and a driven shaft vibration sensor.

3. The anti-clogging system for crushers according to claim 1, characterized in that: The crusher (1) is provided with a crushing rotor mechanism (2) and an arc-shaped screen plate (3) located below the crushing rotor mechanism (2). The arc-shaped screen plate (3) is composed of two arc-shaped screen plates (3) joined together. The far ends of the two screen plates (3) are hinged to the shell of the crusher (1). The abutment of the two screen plates (3) is located directly below the crushing rotor mechanism (2). Both screen plates (3) are provided with a swing mechanism.

4. The anti-clogging system for crushers according to claim 3, characterized in that: The swing mechanism includes a telescopic cylinder (4) and a connecting rod (31). The two connecting rods (31) are located at the middle of the same side of the two screen plates (3) and extend out of the shell of the crusher (1). The telescopic cylinder (4) is located outside the shell of the crusher (1). One end of the piston rod of the telescopic cylinder (4) is hinged to the connecting rod (31), and one end of the cylinder body of the telescopic cylinder (4) is hinged to the shell of the crusher (1).

5. The anti-clogging system for crushers according to claim 4, characterized in that: The shell of the crusher (1) is provided with an arc groove (32) for the connecting rod (31) to swing, and a sliding door (5) is provided outside the arc groove (32) for horizontal sliding.

6. The anti-clogging system for crushers according to claim 3, characterized in that: The crusher (1) has an inspection door (6) on one side of the shell corresponding to the connection of the two screen plates (3). The inspection door (6) has a hinge below it and a fixing pin above it.

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