Rough material running detection system and detection method for centrifugal dehydrator

Abstract

The invention discloses a coarse grain running detection system and method for a centrifugal dehydrator. The centrifugal liquid buffering box is arranged in the centrifugal liquid collecting box and communicated with the centrifugal liquid collecting box through the hanging structure, the connecting base is arranged at the joint of the centrifugal liquid buffering box and the hanging structure, and the first tightening bolt and the rubber pier are arranged between the centrifugal liquid collecting box and the connecting base. The upper part of the centrifugate buffer tank is provided with an opening communicated with a centrifugate feeding pipe, and the bottom of the centrifugate buffer tank is provided with a grate; the bottom of the centrifugal liquid collecting box is communicated with a centrifugal liquid discharging pipe; the top end of the tension sensor is connected with the connecting frame, and the bottom end of the tension sensor is connected with the centrifugate buffer tank through a connecting part; the tension sensor measures the displacement of the centrifugal liquid buffer tank during gravity change and transmits a detection signal to the local tank and the centralized control system, and when the tension sensor detects that the tension exceeds a set value, the centralized control system gives an alarm.

Description

Technical Field

[0001] This invention relates to a detection system, specifically a detection system and method for detecting coarseness in a centrifugal dewatering machine. Background Technology

[0002] Centrifugal dewatering machines are widely used in the dewatering process of coal preparation plants. Their screen baskets are consumable parts that gradually wear down during production, causing the screen openings to coarsen or become damaged, thus affecting their performance. In coal preparation plants, the wear cycle of the screen baskets is not fixed. Furthermore, to prevent splashing of centrifugal liquid, the centrifugal liquid pipelines are often designed inside closed collection boxes, making it difficult to detect screen coarsening or damage caused by wear in a timely manner.

[0003] CN211262685U - An intelligent centrifuge basket damage detection system includes a detection system body, which is a hollow tubular structure. Multiple grooves are evenly distributed on the inner wall of the detection system body, and sliders are slidably connected to the inner walls of the grooves. An annular plate is provided on the inner wall of the detection system body, and the outer surface of the annular plate is fixedly connected to the sliders. A basket is provided at one end of the annular plate. Springs are provided between the grooves and the sliders. A high-pressure pump is provided at one end of the detection system body. A first distance sensor is provided inside one of the sliders, and a second distance sensor is provided on the outer surface of the detection system body corresponding to the first distance sensor. This invention allows for real-time monitoring of the basket's condition during centrifuge operation, preventing a decrease in solid-liquid separation efficiency caused by untimely detection of basket damage.

[0004] Its disadvantages are: the structure and working principle of the detection system are relatively complex. The centrifugal liquid is pumped to the outer screen basket by a high-pressure pump, which consumes a lot of energy and the screen basket is easily damaged. The pump flow rate, centrifugal liquid concentration, slider friction, and the measurement difference between the first and second distance sensors all affect the judgment of whether the screen basket is damaged. There are many factors affecting the measurement, which can easily lead to misjudgment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a detection system and method for coarseness detection in centrifugal dewatering machines, which can effectively solve the problem that it is difficult to detect the coarsening or damage of the screen basket in a timely manner.

[0006] To achieve the above objectives, the detection system of the present invention provides the following technical solution: A centrifugal dewatering machine coarseness detection system includes a centrifugal liquid inlet pipe, a centrifugal liquid collection box, a centrifugal liquid buffer box, a hanging structure, a first adjusting bolt, a rubber block, a tension sensor, a second adjusting bolt, a grate, a centrifugal liquid outlet pipe, a centrifugal liquid outlet pipe, and a connecting frame. The centrifugal liquid buffer tank is installed inside the centrifugal liquid collection tank. The centrifugal liquid buffer tank is connected to the centrifugal liquid collection tank through a hanging structure. A connecting seat is provided at the connection between the centrifugal liquid buffer tank and the hanging structure. An adjusting bolt and a rubber block are installed between the centrifugal liquid collection tank and the connecting seat. When the weight of the centrifugal liquid buffer tank increases, the rubber block is subjected to increased pressure and deforms. The centrifugal buffer tank has an opening at the top that connects to the centrifugal feed pipe, and a grate at the bottom. After the liquid from the centrifugal feed pipe enters the centrifugal buffer tank, it flows out through the grate and into the centrifugal collection tank. The bottom of the centrifugal liquid collection tank is connected to the centrifugal liquid discharge pipe.

[0007] The top of the tension sensor is connected to the connecting frame, and the bottom of the tension sensor is connected to the centrifugal buffer tank through the connecting component. The tension sensor measures the displacement of the centrifugal buffer tank when the gravity changes. That is, when the liquid level inside the centrifugal buffer tank rises due to the runoff of coarse material, the total weight of the centrifugal buffer tank and the liquid inside increases. The rubber blocks at its four fixed corners deform under the force, and the tension sensor is stretched, thereby measuring the displacement of the centrifugal buffer tank when the gravity changes. The detection signal is transmitted to the local tank and the centralized control system. When the tension sensor detects that the tension exceeds the set value, the centralized control system alarms.

[0008] In the existing system, the centrifugal liquid, after being ejected, directly enters the centrifugal liquid collection tank and is discharged by the bottom centrifugal liquid outlet pipe. To solve the technical problem, this solution innovatively adds a centrifugal liquid buffer tank, a hanging structure, and a tension sensor. The hanging structure connects the centrifugal liquid buffer tank and the centrifugal liquid collection tank. A grate intercepts coarse particles, which accumulate in the centrifugal liquid buffer tank, causing relative movement between the buffer tank and the centrifugal liquid collection tank. The rubber blocks deform to buffer the force, and the tension sensor detects changes in the readings. If the change exceeds the set value, the centralized control system alarms, thus effectively solving the problem of difficulty in timely detection of coarsening or damage to the screen basket.

[0009] Further preferred technical solutions are as follows: The mesh size of the grate is 0.5mm-3.5mm, the sieve opening of the centrifugal dewatering machine is 0.5mm, and the particle size of the material inside the centrifuge is 0-13mm.

[0010] The mesh size of grate 9 can be adjusted according to specific conditions, but 3mm is generally selected because the material in the centrifuge is generally 0-13mm, and the particle size will be relatively large after coarsening. The screen gap of the sieve basket is generally 0.5mm.

[0011] The connecting frame is connected to the top of the tension sensor via adjusting bolt two.

[0012] The tension sensor 7 is installed on the centrifugal liquid collection box 2 via the hanging structure 4. It is adjusted to a suitable position by adjusting the adjusting bolt 8 so that the initial value of the tension of the tension sensor 7 is 0.

[0013] The tension sensor measures the pressure generated by the accumulation of coarse particles on the grate 9. When the liquid level inside the centrifugal buffer tank rises due to coarse material accumulation, the increased weight causes the rubber block to deform under stress, stretching the tension sensor and causing a change in its reading. The tension sensor transmits the real-time changes in tension to the local tank and the centralized control system to monitor whether coarse material accumulates in the centrifugal buffer tank, thereby determining whether the screen basket is damaged.

[0014] The detection method of the centrifugal dewatering machine coarseness detection system adopts the following technical solution, including the following steps: (1) System installation and setup: Connect and set up the centrifugal buffer tank, hanging structure, adjusting bolt one, rubber block, tension sensor, grate, centrifugal discharge pipe and connecting frame respectively; (2) Adjust the tightening bolt one so that the rubber block supports the centrifugal buffer tank and can undergo elastic deformation when the weight of the centrifugal buffer tank increases; (3) Observe the initial value of the tension sensor, and adjust the connection height of the tension sensor through the connecting bracket so that the initial value is 0; determine the alarm setting value of the tension sensor detection data according to the needs of system detection; (4) The centrifugal dewatering machine coarseness detection system is started and working. The liquid from the centrifugal liquid feed pipe enters the centrifugal liquid buffer tank and flows out through the grate into the centrifugal liquid collection tank. (5) Among the coarse particles that run away, particles with a diameter larger than the mesh size of the grate are intercepted by the grate. The intercepted coarse particles accumulate in the centrifugal buffer tank. As the material accumulates, the value of the tension sensor gradually increases. When it increases to the set value, the signal of the tension sensor is transmitted to the local box and the central control center. The local box and the central control center simultaneously alarm to prompt the on-site handling of the problem, central control and lock the machine to stop.

[0015] The preferred method for detecting coarseness in the centrifugal dehydrator detection system is as follows: (1) System installation and setup: Connect and set up the centrifugal buffer tank, hanging structure, adjusting bolt one, rubber block, tension sensor, grate, centrifugal discharge pipe and connecting frame respectively; wherein, the mesh size of the grate is 0.5mm-3.5mm, the screen gap of the screen basket of the centrifugal dewatering machine is 0.5mm, and the particle size of the material in the centrifuge is 0-13mm; (2) Adjust the tightening bolt one so that the rubber block supports the centrifugal buffer tank and can undergo elastic deformation when the weight of the centrifugal buffer tank increases; (3) Observe the initial value of the tension sensor, and adjust the connection height of the tension sensor through the connecting bracket so that the initial value is 0; determine the alarm setting value of the tension sensor detection data according to the needs of system detection, and the setting value is 1kg; (4) The centrifugal dewatering machine coarseness detection system is started and working. The liquid from the centrifugal liquid feed pipe enters the centrifugal liquid buffer tank and flows out through the grate into the centrifugal liquid collection tank. (5) Among the coarse particles that run away, particles with a diameter larger than the mesh size of the grate are intercepted by the grate. The intercepted coarse particles accumulate in the centrifugal buffer tank. As the material accumulates, the value of the tension sensor gradually increases. When it increases to the set value of 1kg, the signal of the tension sensor is transmitted to the local box and the central control center. The local box and the central control center simultaneously alarm to prompt the on-site handling of the problem, central control and lock the machine to stop.

[0016] The working process and principle of this invention are as follows: The material from the centrifugal feed pipe first enters the centrifugal buffer tank; if the screen basket is normal, the centrifugal liquid in the centrifugal buffer tank passes through the grate into the centrifugal collection tank, and then is discharged through the centrifugal discharge pipe to enter the next stage. At this time, the material comes and goes, and the tension sensor has a slight change, fluctuating between 0 and 0.2 kg. If the centrifuge screen basket is damaged, the screen gaps will widen, allowing coarse particles to enter the centrifugal liquid buffer tank. Since the diameter of these coarse particles is larger than the mesh size of the grate, they are intercepted by the grate. The intercepted coarse particles accumulate in the centrifugal liquid buffer tank. As the material accumulates, the value of the tension sensor gradually increases. When it increases to the set value of 1 kg, the signal from the tension sensor is transmitted to the local control box and the central control center. At the same time, the local control box and the central control center will simultaneously alarm to prompt on-site problem handling, centrally control and lock the machine to stop.

[0017] Measurements showed that when the accumulated coarse particles after interception exceed 1 / 3 of the volume of the centrifugal buffer tank, the value of the tension sensor exceeds 1 kg. The value will be even greater if the accumulation continues. Therefore, the value of 1 kg can be used as the alarm setting value. When the signal is transmitted to the local box and the central control center, the local box and the central control center will simultaneously alarm to prompt maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 yes Figure 1 The left view.

[0020] Figure 3 yes Figure 1 The right view.

[0021] Figure 4 yes Figure 1 Top view ( Figures 2-4 (The centrifugal feed pipe is not shown in the image).

[0022] Figure 5 This is a flowchart of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 1. Centrifugal liquid inlet pipe; 2. Centrifugal liquid collection box; 3. Centrifugal liquid buffer box; 4. Hanging structure; 5. Adjusting bolt one; 6. Rubber block; 7. Tension sensor; 8. Adjusting bolt two; 9. Grate; 10. Centrifugal liquid outlet pipe; 11. Connecting frame. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] See Figures 1-5 As can be seen, the centrifugal dewatering machine coarseness detection system of the present invention consists of a centrifugal liquid inlet pipe 1, a centrifugal liquid collection box 2, a centrifugal liquid buffer box 3, a hanging structure 4, a first adjusting bolt 5, a rubber block 6, a tension sensor 7, a second adjusting bolt 8, a grate 9, a centrifugal liquid outlet pipe 10, and a connecting frame 11.

[0026] The centrifugal buffer tank 3 is installed inside the centrifugal collection tank 2. The centrifugal buffer tank 3 is connected to the centrifugal collection tank 2 through the hanging structure 4. A connecting seat is provided at the connection between the centrifugal buffer tank 3 and the hanging structure 4. The adjusting bolt 5 and the rubber block 6 are installed between the centrifugal collection tank 2 and the connecting seat. When the gravity of the centrifugal buffer tank 3 increases, the rubber block 6 is subjected to increased pressure and deforms.

[0027] The centrifugal buffer tank 3 has an opening at the top that connects to the centrifugal feed pipe 1, and a grate 9 is provided at the bottom of the centrifugal buffer tank 3. After the liquid from the centrifugal feed pipe 1 enters the centrifugal buffer tank 3, it flows out through the grate 9 and into the centrifugal collection tank 2. The bottom of the centrifugal collection tank 2 is connected to the centrifugal discharge pipe 10.

[0028] The top of the tension sensor 7 is connected to the connecting frame 11, and the bottom of the tension sensor 7 is connected to the centrifugal buffer tank 3 through the connecting component. The tension sensor 7 measures the displacement of the centrifugal buffer tank 3 when the gravity changes. That is, when the liquid level inside the centrifugal buffer tank 3 rises due to the runoff of coarse material, the total weight of the centrifugal buffer tank 3 and the liquid inside it increases. The rubber blocks 6 at its four fixed corners are supported by force and deform. The tension sensor 7 is stretched by the force, thereby measuring the displacement of the centrifugal buffer tank 3 when the gravity changes, and transmitting the detection signal to the local tank and the centralized control system. When the tension sensor 7 detects that the tension exceeds the set value, the centralized control system alarms.

[0029] In the existing system, the centrifugal liquid, after being ejected, directly enters the centrifugal liquid collection tank 2 and is discharged by the bottom centrifugal liquid outlet pipe 10. To solve the technical problem, this solution innovatively adds a centrifugal liquid buffer tank 3, a hanging structure 4, and a tension sensor 7. The hanging structure 4 connects the centrifugal liquid buffer tank 3 and the centrifugal liquid collection tank 2. The grate 9 intercepts coarse particles, which accumulate in the centrifugal liquid buffer tank 3, causing the buffer tank 3 to be under force and to move relative to the centrifugal liquid collection tank 2. The rubber block 6 deforms to buffer the force, and the tension sensor 7 detects changes in the value. If the change exceeds the set value, the centralized control system will alarm, thus effectively solving the problem of difficulty in timely detection of coarsening or damage to the screen basket.

[0030] The mesh size of the grate 9 is 0.5mm-3.5mm, the sieve opening of the centrifugal dewatering machine is 0.5mm, and the particle size of the material inside the centrifuge is 0-13mm.

[0031] The mesh size of grate 9 can be adjusted according to specific conditions, but 3mm is generally selected because the material in the centrifuge is generally 0-13mm, and the particle size will be relatively large after coarsening. The screen gap of the sieve basket is generally 0.5mm.

[0032] The connecting frame 11 is connected to the top of the tension sensor 7 via adjusting bolt 2 8.

[0033] The tension sensor 7 is installed on the centrifugal liquid collection box 2 via the hanging structure 4. It is adjusted to a suitable position by adjusting the adjusting bolt 8 so that the initial value of the tension of the tension sensor 7 is 0.

[0034] The tension sensor 7 measures the pressure generated by the accumulation of coarse particles on the grate 9. When the liquid level inside the centrifugal buffer tank 3 rises due to coarse material accumulation, the increased weight causes the rubber block 6 to deform under stress, stretching the tension sensor 7 and causing a change in its reading. The tension sensor 7 transmits the real-time changes in tension to the local tank and the centralized control system to monitor whether coarse material accumulates in the centrifugal buffer tank 3, thereby determining whether the screen basket is damaged.

[0035] The detection method of the centrifugal dewatering machine coarseness detection system includes the following steps: (1) System installation and setup: Connect and set up the centrifugal buffer tank 3, hanging structure 4, adjusting bolt 1 5, rubber block 6, tension sensor 7, grate 9, centrifugal discharge pipe 10, and connecting frame 11 respectively. (2) Adjust the tightening bolt 5 so that the rubber block 6 supports the centrifugal buffer tank 3 and can undergo elastic deformation when the gravity of the centrifugal buffer tank 3 increases; (3) Observe the initial value of the tension sensor 7, and adjust the connection height of the tension sensor 7 through the connecting bracket 11 so that the initial value is 0; determine the alarm setting value of the detection data of the tension sensor 7 according to the needs of system detection; (4) The centrifugal dewatering machine coarseness detection system is started and working. The liquid in the centrifugal liquid feed pipe 1 enters the centrifugal liquid buffer tank 3 and flows out through the grate 9 into the centrifugal liquid collection tank 2. (5) Among the coarse particles that run away, particles with a diameter larger than the mesh size of the grate 9 are intercepted by the grate 9. The intercepted coarse particles accumulate in the centrifugal buffer tank 3. As the material accumulates, the value of the tension sensor 7 gradually increases. When it increases to the set value, the signal of the tension sensor 7 is transmitted to the local box and the central control center. The local box and the central control center simultaneously alarm to prompt the on-site handling of the problem, central control and lock the machine to stop.

[0036] The preferred method for detecting coarseness in the centrifugal dewatering machine detection system includes the following steps: (1) System installation and setup: Connect and set up the centrifugal liquid buffer tank 3, the hanging structure 4, the adjusting bolt 5, the rubber block 6, the tension sensor 7, the grate 9, the centrifugal liquid discharge pipe 10, and the connecting frame 11 respectively; wherein, the mesh size of the grate 9 is 0.5mm-3.5mm, the sieve gap of the centrifugal dewatering machine is 0.5mm, and the particle size of the material in the centrifuge is 0-13mm.

[0037] (2) Adjust the tightening bolt 5 so that the rubber block 6 supports the centrifugal buffer tank 3 and can undergo elastic deformation when the gravity of the centrifugal buffer tank 3 increases.

[0038] (3) Observe the initial value of the tension sensor 7, and adjust the connection height of the tension sensor 7 through the connecting bracket 11 so that the initial value is 0; determine the alarm setting value of the detection data of the tension sensor 7 according to the needs of system detection, and the setting value is 1kg.

[0039] (4) The centrifugal dewatering machine coarse detection system is started and working. The liquid from the centrifugal liquid feed pipe 1 enters the centrifugal liquid buffer tank 3 and flows out through the grate 9 into the centrifugal liquid collection tank 2.

[0040] (5) Among the coarse particles that run away, particles with a diameter larger than the mesh size of the grate 9 are intercepted by the grate 9. The intercepted coarse particles accumulate in the centrifugal buffer tank 3. As the material accumulates, the value of the tension sensor 7 gradually increases. When it increases to the set value of 1kg, the signal of the tension sensor 7 is transmitted to the local box and the central control center. The local box and the central control center simultaneously alarm to prompt the on-site handling of the problem, central control and lock the machine to stop.

[0041] The working process and principle of this invention are as follows: The material from the centrifugal feed pipe 1 first enters the centrifugal buffer tank 3. If the screen basket is normal, the centrifugal liquid in the centrifugal buffer tank 3 passes through the grate 9 into the centrifugal collection tank 2, and then is discharged through the centrifugal discharge pipe 10 to enter the next stage. At this time, the material comes and goes, and the tension sensor has a slight change, fluctuating between 0 and 0.2 kg.

[0042] If the centrifuge screen basket is damaged, the screen gaps will widen, and coarse particles will enter the centrifugal buffer tank 3. The diameter of the coarse particles is larger than the mesh size of the grate 9, so they are intercepted by the grate 9. The intercepted coarse particles accumulate in the centrifugal buffer tank 3. As the material accumulates, the value of the tension sensor 7 gradually increases. When it increases to the set value of 1 kg, the signal of the tension sensor 7 is transmitted to the local control box and the central control center. The local control box and the central control center will simultaneously alarm to prompt on-site problem handling, centrally control and lock the machine to stop.

[0043] Measurements showed that when the accumulated coarse particles after interception exceeded 1 / 3 of the volume of the centrifugal buffer tank 3, the value of the tension sensor 7 exceeded 1kg. The value would be even greater if the accumulation continued. Therefore, the value of 1kg can be used as the alarm setting value. When the signal is transmitted to the local box and the central control center, the local box and the central control center will simultaneously alarm and prompt maintenance.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A centrifugal dewatering machine coarse detection system, comprising a centrifugal liquid inlet pipe (1), a centrifugal liquid outlet pipe (10), characterized in that, Also include: Centrifugal liquid collecting tank (2), centrifugal liquid buffer tank (3), hanging structure (4), tightening bolt one (5), rubber block (6), tension sensor (7), grate (9), centrifugal liquid discharge pipe (10), connecting frame (11); The centrifugal liquid buffer tank (3) is arranged in the centrifugal liquid collecting tank (2), the centrifugal liquid buffer tank (3) is communicated with the centrifugal liquid collecting tank (2) through the hanging structure (4), the connecting seat is arranged at the connection between the centrifugal liquid buffer tank (3) and the hanging structure (4), the tightening bolt one (5) and the rubber block (6) are arranged between the centrifugal liquid collecting tank (2) and the connecting seat, when the gravity of the centrifugal liquid buffer tank (3) increases, the rubber block (6) is pressed to increase, and deformation occurs; The upper portion of the centrifugal liquid buffer tank (3) is provided with an opening communicated with the centrifugal liquid inlet pipe (1), and the bottom of the centrifugal liquid buffer tank (3) is provided with a grate (9); the liquid in the centrifugal liquid inlet pipe (1) flows out through the grate (9) after entering the centrifugal liquid buffer tank (3) and flows into the centrifugal liquid collecting tank (2); The bottom of the centrifugal liquid collecting tank (2) is communicated with the centrifugal liquid discharge pipe (10); The top end of the tension sensor (7) is connected with the connecting frame (11), and the bottom end of the tension sensor (7) is connected with the centrifugal liquid buffer tank (3) through a connecting part; the tension sensor (7) measures the displacement amount of the centrifugal liquid buffer tank (3) when the gravity changes, that is, after the liquid level in the centrifugal liquid buffer tank (3) rises due to coarse material, the total weight of the centrifugal liquid buffer tank (3) and the liquid in it increases, the fixed four corners are supported by the rubber block (6) to generate deformation under stress, the tension sensor (7) is stretched under stress, thereby measuring the displacement amount of the centrifugal liquid buffer tank (3) when the gravity changes, and transmitting the detection signal to the on-site tank and the centralized control system; when the tension detected by the tension sensor (7) exceeds the set value, the centralized control system alarms.

2. The centrifugal dewatering machine run out detection system of claim 1, wherein: The mesh of the grate (9) is 0.5mm-3.5mm, the screen gap of the screen basket of the centrifugal dewatering machine is 0.5mm, and the particle size of the material in the centrifugal machine is 0-13mm.

3. The centrifugal dewatering machine run out detection system of claim 1, wherein: The connecting frame (11) is connected with the top end of the tension sensor (7) through the adjusting bolt two (8).

4. A method of detecting a runout of a centrifugal dewatering machine runout detection system as defined in claim 1, wherein, Comprising the following steps: (1) System installation and setting, the centrifugal liquid buffer tank (3), the hanging structure (4), the tightening bolt one (5), the rubber block (6), the tension sensor (7), the grate (9), the centrifugal liquid discharge pipe (10), and the connecting frame (11) are respectively connected and set; (2) Adjust the tightening bolt one (5) to make the rubber block (6) support the centrifugal liquid buffer tank (3) and be able to elastically deform when the gravity of the centrifugal liquid buffer tank (3) increases; (3) Observe the initial value of the tension sensor (7), adjust the connection height of the tension sensor (7) through the connecting frame (11), so that the initial value is 0; according to the need of system detection, determine the set value of the alarm of the detection data of the tension sensor (7); (4) The centrifugal dewatering machine coarse detection system starts and works, the liquid in the centrifugal liquid inlet pipe (1) flows out through the grate (9) after entering the centrifugal liquid buffer tank (3) and flows into the centrifugal liquid collecting tank (2); (5) the coarse particles in the coarse particles that run, the particles with a diameter greater than the aperture of the mesh of the screen (9) are intercepted by the screen (9), and the intercepted coarse particles that run are accumulated in the centrifugal liquid buffer tank (3), and as the material accumulates, the value of the tension sensor (7) gradually increases, when the value increases to the set value, the signal of the tension sensor (7) is transmitted to the on-site box and the centralized control center, and the on-site box and the centralized control center simultaneously alarm to prompt on-site processing problems, centralized control and lockout shutdown.

5. The method of claim 4, wherein the step of detecting comprises: Comprise the following steps: (1) system installation setting, the centrifugal liquid buffer tank (3), the hanging structure (4), the adjusting bolt one (5), the rubber block (6), the tension sensor (7), the screen (9), the centrifugal liquid discharge pipe (10), the connecting frame (11) are connected and set respectively; wherein, the mesh of the screen (9) is 0.5mm-3.5mm, the screen gap of the centrifugal dewatering machine is 0.5mm, and the particle size of the material in the centrifuge is 0-13mm; (2) adjust the adjusting bolt one (5), so that the rubber block (6) supports the centrifugal liquid buffer tank (3) and can elastically deform when the gravity of the centrifugal liquid buffer tank (3) becomes large; (3) observe the initial value of the tension sensor (7), adjust the connection height of the tension sensor (7) through the connecting frame (11), so that the initial value is 0; according to the need of system detection, determine the set value of the alarm of the detection data of the tension sensor (7), the set value is 1kg; (4) the centrifugal dewatering machine coarse running detection system starts and works, the liquid in the centrifugal liquid inlet pipe (1) enters the centrifugal liquid buffer tank (3) and flows out through the screen (9), and flows into the centrifugal liquid collecting tank (2); (5) the coarse particles in the coarse particles that run, the particles with a diameter greater than the aperture of the mesh of the screen (9) are intercepted by the screen (9), and the intercepted coarse particles that run are accumulated in the centrifugal liquid buffer tank (3), and as the material accumulates, the value of the tension sensor (7) gradually increases, when the value increases to the set value 1kg, the signal of the tension sensor (7) is transmitted to the on-site box and the centralized control center, and the on-site box and the centralized control center simultaneously alarm to prompt on-site processing problems, centralized control and lockout shutdown.

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