Running-in control method, controller and control system of crusher

Abstract

The invention discloses a running-in control method of a crusher, a controller and a control system, and belongs to the field of mining crushing. The running-in time of the crusher can be shortened, the running-in speed of the initially-installed crusher is increased, and the mining production efficiency is improved. The crusher comprises a fixed cone lining plate, a movable cone lining plate, an upper support, a crusher main shaft and a driving device, the fixed cone lining plate is fixedly connected with the upper support, the movable cone lining plate is movably connected with the crusher main shaft, one end of the crusher main shaft is movably connected with the upper support, and the other end of the crusher main shaft is connected with the driving device. And the driving device is used for driving the crusher main shaft to lift along the extending direction of the main shaft, so that the crusher discharge port reaches a set size. The running-in control method of the crusher comprises the following steps: starting the crusher, and controlling a driving device to apply initial pressure to a main shaft of the crusher; a to-be-crushed material is put into the crusher; and adjusting the pressure applied to the crusher main shaft by the driving device to reach the target pressure.

Description

Technical Field

[0001] The present application relates to the field of mining crushing, and in particular to a crusher running-in control method, controller and control system. Background Art

[0002] As the first step in the beneficiation process, the crushing system for extra-large iron ore plays a crucial role in mineral processing. Since the crushing equipment is newly installed, it requires a period of running-in to achieve optimal performance. Therefore, accelerating the crusher's running-in process and getting the equipment into working order quickly becomes a key issue. However, existing newly installed crushers experience a long running-in period and a slow speed, resulting in low mining production efficiency. Summary of the Invention

[0003] The embodiments of the present application provide a crusher running-in control method, controller and control system, which can shorten the crusher running-in time, accelerate the running-in speed of the initially installed crusher, and improve mining production efficiency.

[0004] A first aspect of an embodiment of the present application provides a crusher running-in control method, wherein the crusher includes a fixed cone liner, a movable cone liner, an upper bracket, a crusher main shaft, and a drive device, wherein the fixed cone liner is fixedly connected to the upper bracket, the movable cone liner is fixedly connected to the crusher main shaft, one end of the crusher main shaft is movably connected to the upper bracket, and the other end of the crusher main shaft is connected to the drive device, wherein the drive device is used to drive the crusher main shaft to move up and down along the extension direction of the main shaft so that the crusher discharge opening reaches a set size:

[0005] The crusher running-in control method comprises:

[0006] Turning on the crusher, and controlling the driving device to apply initial pressure to the main shaft of the crusher;

[0007] feeding the material to be crushed into the crusher;

[0008] The pressure applied by the driving device to the crusher main shaft is adjusted to reach the target pressure.

[0009] In some embodiments, the crusher further comprises an eccentric sleeve, wherein the eccentric sleeve is sleeved on the main shaft of the crusher;

[0010] an eccentric sleeve driving device connected to the eccentric sleeve via a rotating gear;

[0011] The crusher running-in control method further includes:

[0012] Controlling the eccentric sleeve driving device to drive the eccentric sleeve to rotate along the axial direction of the rotating gear, the rotation of the eccentric sleeve is used to drive the movable cone liner to move eccentrically along the main shaft of the crusher, thereby driving the relative movement of the movable cone liner with respect to the fixed cone liner to crush the material;

[0013] The eccentric distance of the movable cone liner and the rotation speed of the movable cone liner are adjusted so that the crusher can crush the material to be crushed to a target particle size.

[0014] In some embodiments, adjusting the pressure applied by the driving device to the crusher main shaft to reach the target pressure comprises:

[0015] Controlling the crusher to continuously crush materials;

[0016] When the crusher continuously crushes materials for a duration greater than or equal to 2 hours, the pressure applied by the driving device to the crusher main shaft is controlled to increase by 0.2 MPa based on the initial pressure, and then the pressure applied is increased by 0.2 MPa every 2 hours.

[0017] In some embodiments, adjusting the pressure applied by the driving device to the crusher main shaft to reach the target pressure further includes:

[0018] detecting a pressure value applied by the driving device to the crusher main shaft;

[0019] When the pressure value is less than 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 2 hours;

[0020] When the crusher continuously crushes materials for 2 hours, the pressure applied by the driving device to the main shaft of the crusher is controlled to increase by 0.2 MPa; or

[0021] When the pressure value is less than 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 2 hours;

[0022] When the cumulative time for the crusher to crush materials reaches 2 hours, the pressure applied by the driving device to the crusher main shaft is controlled to increase by 0.2 MPa, wherein the cumulative time for the crusher to continuously crush materials in a single time greater than or equal to 5 minutes is included in the cumulative time.

[0023] In some embodiments, adjusting the pressure applied by the driving device to the crusher main shaft to reach the target pressure comprises:

[0024] detecting a pressure value applied by the driving device to the crusher main shaft;

[0025] When the pressure value is greater than or equal to 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 1 hour;

[0026] When the crusher continuously crushes materials for 1 hour, the pressure applied by the driving device to the main shaft of the crusher is controlled to increase by 0.1 MPa; or

[0027] When the pressure value is greater than or equal to 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 1 hour;

[0028] When the cumulative time for the crusher to crush materials reaches 1.5 hours, the pressure applied by the driving device to the crusher main shaft is controlled to increase by 0.1 MPa, wherein the time for the crusher to continuously crush materials in a single time greater than or equal to 30 minutes is included in the cumulative time.

[0029] In some embodiments, when the cumulative time for the crusher to crush materials reaches 2 hours, controlling the pressure applied by the driving device to the main shaft of the crusher to increase by 0.2 MPa comprises:

[0030] When the cumulative time for the crusher to crush materials reaches an odd number of hours, controlling the pressure applied by the driving device to the main shaft of the crusher to increase by 0.1 MPa;

[0031] When the cumulative time for the crusher to crush materials reaches an even number of hours, the pressure applied by the driving device to the main shaft of the crusher is controlled to increase by 0.2 MPa.

[0032] In some embodiments, the step of starting the crusher and controlling the driving device to apply initial pressure to the main shaft of the crusher includes:

[0033] detecting a pressure value applied by the driving device to the crusher main shaft;

[0034] When the pressure value increases by 0.1 MPa, the crusher is controlled to run at no load for 3 to 5 minutes.

[0035] In some embodiments, the eccentric movement distance of the eccentric sleeve ranges from 50 mm to 65 mm; and / or,

[0036] The crusher discharge opening is set to a size range of 50 mm to 55 mm; and / or,

[0037] The target pressure range is 5 MPa to 5.5 MPa.

[0038] According to a second aspect of an embodiment of the present application, a controller is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to execute the computer program stored in the memory to implement the crusher running-in method as described in the first aspect.

[0039] According to a third aspect of the embodiments of the present application, a control system is provided, comprising: a crusher and the controller described in the second aspect.

[0040] The crusher running-in control method provided in the embodiment of the present application controls the crusher drive device to apply pressure to the crusher main shaft, driving the crusher main shaft to move up and down along the extension direction of the main shaft, so that the size of the discharge port and the feed port changes. By adjusting the size of the discharge port, the proportion of the particle size that meets the requirements in the discharge particle size is adjusted. According to the different target particle size requirements of the material, the pressure applied by the drive device to the crusher main shaft is adjusted to achieve the target pressure, so that the crusher discharge port can quickly reach the set size, so that the proportion of materials that meet the target particle size can quickly reach the requirements, shortening the crusher running-in time, and thus improving the production efficiency of the mineral. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic structural diagram of a crusher provided in an embodiment of the present application;

[0042] Figure 2 A schematic flow chart of a crusher running-in control method provided in an embodiment of the present application;

[0043] Figure 3 A schematic structural diagram of a controller is provided for an embodiment of the application. DETAILED DESCRIPTION

[0044] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0045] In this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also include elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the statement "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or equipment comprising the elements. The term "two or more" includes two or more than two cases.

[0046] As the first step in the beneficiation process, the crushing system for extra-large iron ore plays a crucial role in mineral processing. Since the crushing equipment is newly installed, it requires a period of running-in to achieve optimal performance. Therefore, accelerating the crusher's run-in and ensuring the equipment meets target particle size requirements for processing becomes a key issue. However, existing newly installed crushers often experience long run-in times and slow speeds, resulting in low mining efficiency.

[0047] In view of this, the embodiments of the present application provide a crusher running-in control method, controller and control system, which can shorten the crusher running-in time, accelerate the running-in speed of the initially installed crusher, and improve mining production efficiency.

[0048] In a first aspect of the embodiments of the present application, a crushing run-in control method is provided. The run-in control method is implemented based on a crusher. Figure 1 A schematic structural diagram of a crusher is provided for an embodiment of the present application. Figure 2 This is a schematic flow chart of a crusher running-in control method provided in an embodiment of the present application. Figure 1As shown, the crusher includes a fixed cone liner 100, a movable cone liner 200, an upper support 300, a crusher main shaft 400, and a drive device 500. The fixed cone liner 100 is fixedly connected to the upper support 300, while the movable cone liner 200 is fixedly connected to the crusher main shaft 400. An umbrella-shaped fixing structure 201 is disposed between the crusher main shaft 400 and the movable cone liner 200. The umbrella-shaped fixing structure 201 is sleeved onto the crusher main shaft 400. The end of the movable cone liner 200 closest to the upper support 300 is fixedly connected to the crusher main shaft 400 via a fixing assembly 202. The end of the movable cone liner 200 away from the upper support 300 is connected to the umbrella-shaped fixing structure 201. The fixing assembly 202 may be a screw assembly. The crusher main shaft 400 is provided with a threaded hole that matches the screw assembly. By controlling the screw assembly to penetrate the threaded hole, the end of the movable cone liner away from the upper support 300 is press-fitted with the umbrella-shaped fixing structure 201. One end of the crusher main shaft 400 is movably connected to the upper support 300, and the other end is connected to the drive device 500. An inlet 110 is formed between the movable cone liner 200 and the fixed cone liner 100 on the side closer to the upper support 300, and a discharge opening 210 is formed between the movable cone liner 200 and the fixed cone liner 100 on the side farther from the upper support 300. The distance between the movable cone liner 200 and the fixed cone liner 100 on the side farther from the upper support defines the size of the discharge opening 210. The drive device 500 is used to drive the crusher main shaft 400 to move up and down along the main shaft extension direction Y, thereby changing the size of the discharge opening 210 and the inlet 110. The drive device 500 drives the movable cone liner 200 relative to the fixed cone liner 100 to crush the material. As the crusher's main shaft 400 moves up and down along the main shaft extension direction Y, the distance between the fixed cone liner 100 and the movable cone liner 200 changes, and the sizes of the discharge opening 210 and the inlet 110 also change. When the crusher's main shaft 400 drives the movable cone liner 200 upward along the main shaft extension direction Y, the size of the discharge opening 210 decreases. When the crusher's main shaft 400 drives the movable cone liner 200 downward along the main shaft extension direction Y, the size of the discharge opening 210 increases. The size of the discharge opening 210 can be used to control the required particle size ratio within the discharge. The particle size ratio refers to the proportion of each component at different particle size levels. As the size of the discharge port 210 increases, the proportion of the particle size that meets the requirements in the discharge particle size is low, and as the size of the discharge port 210 decreases, the proportion of the particle size that meets the requirements in the discharge particle size is high. This method adjusts the pressure applied by the drive device to the crusher main shaft according to the different target particle size requirements of the material to achieve the target pressure, which can make the crusher discharge port quickly reach the set size, so that the proportion of materials that meet the target particle size quickly reaches the requirements, which can shorten the crusher running-in time and thereby improve the production efficiency of the mineral.

[0049] Exemplary, reference Figure 2 , the crusher running-in control method includes:

[0050] S101: Turn on the crusher and control the driving device to apply initial pressure to the crusher main shaft.

[0051] Exemplary, reference Figure 1 and Figure 2 The crusher is connected to a power supply, which powers the crusher to start. The drive device 500 can be the hydraulic system within the crusher. High-pressure oil from the hydraulic pump within the hydraulic system is piped to the hydraulic motor, driving the piston and applying pressure to the crusher's main shaft. During the initial startup of the crusher, before the crusher is crushing material, the drive device can apply an initial pressure of 1.6 MPa to the crusher's main shaft. In this case, the crusher's initial discharge opening is 60 mm.

[0052] S102: Add the material to be crushed into the crusher.

[0053] For example, a crusher production line is equipped with a coarse crusher, a medium crusher, and a fine crusher. The coarse crusher crushes materials with a large particle size, the medium crusher crushes materials with a medium particle size, and the fine crusher crushes materials with the smallest particle size. The crusher's material to be crushed includes ore. During the production process, the material to be crushed first passes through the coarse crusher, then the medium crusher, and finally the fine crusher to obtain material with the target particle size, completing the material crushing. The crusher run-in control method described in this application can be applied to any of the three types of crushers mentioned above.

[0054] For example, in the case where the crusher of the present application is a medium-type crusher, the material to be crushed is transported from the coarse-type crusher to the medium-type crusher, and a crushing buffer bin is provided between the coarse-type crusher and the medium-type crusher. The crushing buffer bin is used to hold the material to be crushed transported by the coarse-type crusher. The material to be crushed in the crushing buffer bin is fed to the medium-type crusher via a feeding conveyor belt to complete the feeding of the material to be crushed into the crusher. A level meter is provided in the material in the crushing buffer bin to measure the amount of material in the bin. Usually, the level meter detects that the material position in the crushing buffer bin is as high as 5m, which means that the material to be crushed can be continuously and uninterruptedly fed into the crusher. By providing the crushing buffer bin, a continuous and stable feeding can be provided to the medium-type crusher, thereby improving the stability of the crusher operation.

[0055] It should be noted that the material in the crushing buffer bin can be transmitted by the main shaft. The main shaft is connected to the coarse crusher, medium crusher, fine crusher and crushing buffer bin through conveyor belts. After the material level in the main shaft reaches 12 meters or 12.5 meters, the material can be transported to the crushing cabin to ensure that there is sufficient material in the crushing buffer bin, and then the material is continuously fed into the crusher.

[0056] S103: Adjust the pressure applied by the driving device to the crusher main shaft to reach the target pressure.

[0057] Exemplary, reference Figure 1 and Figure 2 , the pressure applied by the control drive device 500 to the crusher main shaft 400 can be a step-by-step pressure increase or a continuous constant pressure increase. The pressure applied by the drive device 500 to the crusher main shaft 400 can be increased on the basis of the initial pressure. When the crusher is operating, the initial discharge opening is fixed. When the crusher is fed, the main shaft will be squeezed by the material and move downward along the main shaft extension direction Y. The greater the pressure applied by the drive device 500 to the crusher main shaft, the smaller the amount of downward displacement of the main shaft along the main shaft extension direction Y due to the material when the crusher is fed, the smaller the amount of increase in the size of the discharge opening 210, and the higher the proportion of particle sizes that meet the requirements in the discharge particle size. Conversely, the smaller the pressure applied by the drive device 500 to the crusher main shaft, the greater the amount of downward displacement of the main shaft along the main shaft extension direction Y due to the material when the crusher is fed, the greater the amount of increase in the size of the discharge opening 210, and the higher the proportion of particle sizes that meet the requirements in the discharge particle size. According to the actual needs of on-site operations, the pressure applied by the drive device to the crusher main shaft can be adjusted to reach the target pressure, and the crusher's discharge port can be quickly adjusted to the set size, so that the proportion of materials meeting the target particle size meets the requirements, which can shorten the crusher's running-in time and improve the production efficiency of minerals.

[0058] The crusher running-in control method provided in the embodiment of the present application controls the crusher drive device to apply pressure to the crusher main shaft, driving the crusher main shaft to move up and down along the extension direction of the main shaft, so that the size of the discharge port and the feed port changes. By adjusting the size of the discharge port, the proportion of the particle size that meets the requirements in the discharge particle size is adjusted. According to the different target particle size requirements of the material, the pressure applied by the drive device to the crusher main shaft is adjusted to achieve the target pressure, so that the crusher discharge port can quickly reach the set size, so that the proportion of materials that meet the target particle size can quickly reach the requirements, shortening the crusher running-in time, and thus improving the production efficiency of the mineral.

[0059] In some embodiments, reference Figure 1The crusher further includes an eccentric sleeve 600 and an eccentric sleeve driving device 700. The eccentric sleeve 600 is mounted on the crusher main shaft 400, and the eccentric sleeve driving device 700 is connected to the eccentric sleeve 600 via a rotating gear 701. When the crusher is provided with the eccentric sleeve 600, the crusher running-in control method further includes: controlling the eccentric sleeve driving device 700 to drive the eccentric sleeve 600 to rotate along the rotating gear shaft 701, the rotation of the eccentric sleeve 600 is used to drive the movable cone liner 200 to perform eccentric movement along the crusher main shaft 400, thereby driving the movable cone liner 200 to move relative to the fixed cone liner 100 to crush the material; and adjusting the eccentric distance of the movable cone liner 200 and the rotation speed of the movable cone liner 200 so that the crusher crushes the material to be crushed to a target particle size.

[0060] Exemplary, reference Figure 1 The eccentric sleeve drive device 700 may include a motor and a bearing 702. The bearing 702 may include a worm, and the rotating gear 701 may include a turbine. The motor drives the bearing 702 to rotate, and the rotation of the bearing 702 drives the rotating gear 701 to rotate. The rotation of the rotating gear 701 further drives the eccentric sleeve 600 to rotate along the axial direction of the rotating gear 701. Since the eccentric sleeve 600 is mounted on the crusher main shaft 400, the rotation of the eccentric sleeve 600 drives the movable cone liner 200 on the crusher main shaft 400 to move eccentrically along the axial direction of the crusher main shaft 400, thereby driving the movable cone liner 200 to move relative to the fixed cone liner 100 to crush the material. The eccentric movement of the movable cone liner 200 along the axial direction of the crusher main shaft is the process of the movable cone liner 200 moving toward the fixed cone liner 100. The eccentric distance of the movable cone liner 200 relative to the crusher main shaft 400 can be adjusted to adjust the distance between the movable cone liner 200 and the fixed cone liner 100, thereby achieving a set size for the discharge opening 210. The greater the eccentric distance of the movable cone liner 200, the smaller the distance between the movable cone liner 200 and the fixed cone liner 100, and the smaller the set size of the discharge opening 210. In this case, the compressive pressure exerted by the movable cone liner 200 and the fixed cone liner 100 on the material increases, resulting in a smaller particle size of the ore and a shorter crushing time required to reach the target particle size. Conversely, the smaller the eccentric distance of the movable cone liner 200, the greater the distance between the movable cone liner 200 and the fixed cone liner 100, and the less compressive pressure exerted by the movable cone liner 200 and the fixed cone liner 100 on the material. Consequently, the particle size of the ore increases and the crushing time required to reach the target particle size increases. By adjusting the rotation speed of the moving cone liner, the speed at which the moving cone liner crushes the material can be controlled, so that the material to be crushed can be quickly crushed to the target particle size.

[0061] By controlling the eccentric distance and rotational speed of the movable cone liner, the embodiments of the present application can adjust the extrusion pressure exerted by the movable and fixed cone liner on the material, as well as the speed of material crushing, thereby quickly achieving the target particle size. Combined with adjusting the pressure exerted by the drive device on the crusher main shaft, the crusher ensures that the material to be crushed to the target particle size is quickly crushed while maintaining the crusher's discharge opening at a set size, ensuring stable crushing production. By coordinating and adjusting the eccentric sleeve drive device with the drive device, the crusher's running-in time can be shortened, thereby improving mineral production efficiency.

[0062] In some embodiments, step S103 includes: when the crusher continuously crushes materials for a duration greater than or equal to 2 hours, controlling the driving device to increase the pressure applied to the crusher main shaft by 0.2 MPa on the basis of the initial pressure, and then increasing the pressure applied by 0.2 MPa every 2 hours until the crusher pressure reaches the target pressure.

[0063] Exemplarily, the continuous crushing of materials by the crusher can be a state of continuous operation of the crusher achieved by the continuous power supply and sufficient feeding of the crusher. When the initial pressure is 1.6Mpa, after the crusher continuously crushes materials for 2 hours, the pressure applied to the crusher main shaft is increased to 1.8Mpa. After the crusher continuously crushes materials for 4 hours, the pressure applied to the crusher main shaft is increased to 2Mpa. After the crusher continuously crushes materials for 6 hours, the pressure applied to the crusher main shaft is increased to 2.2Mpa, until the crushing main shaft pressure reaches the target pressure. When the pressure applied to the crusher main shaft by the drive device is pressurized to the target pressure and the crusher is kept running stably, it can be considered that the crusher main shaft pressure has been run-in to the optimal state.

[0064] For example, the target pressure range can be 5 MPa to 5.5 MPa. It can also be 5.1 MPa, 5.2 MPa, 5.3 MPa, or 5.4 MPa. The set size of the discharge port, the linear distance between the moving cone liner and the fixed cone liner, ranges from 50 mm to 55 mm and can be 51 mm, 52 mm, 53 mm, or 54 mm.

[0065] It should be noted that when the target pressure is 5Mpa to 5.5Mpa, the running-in stage before the pressure value applied by the driving device to the crusher main shaft reaches 3Mpa is regarded as the initial running-in stage, and the running-in stage after the pressure value applied by the driving device to the crusher main shaft reaches 3Mpa is regarded as the mid-to-late running-in stage.

[0066] In some embodiments, step S103 includes detecting the pressure applied by the drive device to the crusher main shaft. The pressure detecting device may be a pressure sensor located at the contact point where the crusher main shaft and the drive device are connected. If the detected pressure is less than 3 MPa, the crusher is controlled to continuously crush material for a duration of at least two hours. Continuous crushing of the crusher may mean controlling the crusher to crush material continuously and uninterruptedly. Idle operation of the crusher does not count as continuous crushing. If the crusher continuously crushes material for two hours, the pressure applied by the drive device to the crusher main shaft may be increased by 0.2 MPa. Thereafter, the pressure applied is increased by 0.2 MPa every two hours until the target pressure is reached. The pressure applied to the crusher main shaft may be a pressure increased based on the initial pressure. Alternatively, the pressure may be increased based on the pressure of the crusher main shaft in the idle state after the crusher has been operating at a certain pressure. As an example, assume that the pressure applied by the drive device to the crusher's main shaft is 2 MPa in the current no-load state. By feeding the material to be crushed into the crusher and controlling the continuous crushing time of the material to be crushed to be greater than or equal to 2 hours, the pressure applied by the drive device to the crusher's main shaft is controlled to be increased by 0.2 MPa on the basis of 2 MPa. The method of applying pressure to the crusher once every two hours of continuous crushing is called continuous constant pressurization. By setting the drive device to apply continuous constant pressurization, the crusher can be stabilized and the pressure applied by the drive device to the crusher's main shaft can be quickly adjusted to the target pressure. This improves the crusher's running-in speed while maintaining stable operation.

[0067] In some embodiments, step S103 includes: when the pressure value is less than 3 MPa, controlling the crusher to continue discontinuously crushing materials for a duration greater than or equal to 2 hours. When the cumulative duration of the crusher's crushing reaches 2 hours, controlling the drive device to increase the pressure applied to the crusher's main shaft by 0.2 MPa. The cumulative duration of a single continuous crushing run by the crusher of 5 minutes or more can be included in the cumulative time; a single continuous crushing run of less than 5 minutes is not included in the cumulative time. By calculating the cumulative crushing time, it is applicable to situations where feeding is insufficient. Even if the crushing process is interrupted, the pressure applied to the crusher's main shaft can still be accurately determined, thereby accelerating the run-in of the crusher.

[0068] In some embodiments, when the pressure value is less than 3 MPa and the cumulative time the crusher has been crushing materials reaches an odd number of hours, the pressure applied by the drive device to the crusher main shaft is controlled to increase by 0.1 MPa. When the cumulative time the crusher has been crushing materials reaches an even number of hours, the pressure applied by the drive device to the crusher main shaft is controlled to increase by 0.2 MPa.

[0069] For example, when the pressure value is less than 3 MPa and the cumulative time the crusher has been crushing materials reaches 1 hour, 5 hours, 7 hours..., the pressure applied by the drive device to the crusher main shaft can be controlled to increase by 0.1 MPa, and then the pressure is increased by 0.1 MPa every odd hour. When the pressure value is less than 3 MPa and the cumulative time the crusher has been crushing materials reaches 2 hours, 4 hours, 6 hours..., the pressure applied by the drive device to the crusher main shaft can be controlled to increase by 0.2 MPa, and then the pressure is increased by 0.2 MPa every even hour. By applying pressure in an alternating manner of applying pressure of 0.1 MPa in odd hours and 0.2 MPa in even hours, the crusher can be buffered during long-term pressurization, avoiding continuous pressurization of the crusher main shaft, thereby reducing wear on the crusher main shaft and improving the reliability of the crusher equipment.

[0070] In some embodiments, when the pressure value is less than 3 MPa and the crusher has been crushing materials for a cumulative time of 1 hour, the pressure applied by the drive device to the crusher main shaft can be controlled to increase by 0.1 MPa. After the crusher has been crushing materials for a cumulative time of 2 hours, the pressure applied by the drive device to the crusher main shaft can be controlled to increase by 0.2 MPa. The pressure applied thereafter can be increased by 0.2 MPa every 2 hours until the pressure value reaches 5 MPa. By applying a stepped pressure method during the initial run-in stage, the crusher can avoid failure of the movable and fixed cone linings of the crusher during the material crushing process due to excessive pressure during the initial run-in stage, thereby ensuring safe production of the crusher.

[0071] In some embodiments, when the pressure value is greater than or equal to 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 1 hour. When the crusher continuously crushes the material for 1 hour, the pressure applied by the driving device to the crusher main shaft is controlled to increase by 0.1 MPa.

[0072] In some embodiments, when the pressure value is greater than or equal to 3 MPa, the crusher is controlled to continuously crush materials for a duration greater than or equal to 1 hour. When the cumulative crushing time reaches 1.5 hours, the pressure applied by the drive device to the crusher main shaft is controlled to increase by 0.1 MPa, wherein the duration of a single continuous crushing of the crusher greater than or equal to 30 minutes is included in the cumulative time.

[0073] The embodiment of the present application adopts a segmented pressurization method to divide the crusher's running-in control method into two running-in stages. In the running-in stage before the crusher main shaft pressure reaches 3Mpa, the pressurization time is once every 2 hours, and in the running-in stage after the crusher main shaft pressure reaches 3Mpa, the pressurization treatment is performed every 1 to 1.5 hours. The pressurization interval is longer in the initial stage, and shorter in the middle and late stages. By controlling the pressure applied to the crusher main shaft by the drive device in different running-in stages, the surface structure of the movable cone liner and the fixed cone liner can be avoided from being damaged due to excessive pressure when the crusher is initially installed, resulting in the movable cone liner and the movable cone liner being unable to crush materials.

[0074] Normally, when a crusher is run-in, it takes nearly 2 days to increase the pressure by 0.2 MPa. Through the run-in control method of the crusher of the present application, the crusher can achieve a pressure of 0.2 MPa every 12 hours, and the run-in time is reduced by 4 times.

[0075] In some embodiments, step S101 includes:

[0076] The drive unit detects the pressure applied to the crusher's main shaft. This pressure can be measured when the crusher is unloaded. Based on the size of the material being crushed, the drive unit is controlled to apply pressure to the crusher's main shaft to reach an initial pressure. The initial pressure can be set so that the distance between the movable cone liner (near the upper support) and the fixed cone liner (on the side closest to the upper support) is sufficient to generate the necessary extrusion pressure. For an initial pressure of 1.6 MPa, the crusher's initial discharge size is 60 mm. The drive unit can be controlled to operate the crusher unloaded for 3 to 5 minutes for each 0.1 MPa increase in pressure applied to the crusher's main shaft. This 3 to 5-minute unloaded operation can be used to detect whether the crusher's discharge opening has reached its initial size, ensuring proper pressure application and improving the stability of the drive unit's pressure application, ultimately ensuring stable crusher operation.

[0077] According to a second aspect of the embodiments of the present application, a controller is provided. Figure 3 A schematic structural diagram of a controller is provided for the application embodiment. For example, reference Figure 3 The control 1000 includes a memory 1100, a processor 1200, and a computer program 1001 stored in the memory 1100 and executable on the processor 1200. The processor 1200 is configured to execute the computer program 1001 stored in the memory 1100 to implement the crusher running-in method according to the first aspect.

[0078] The crusher running-in control method provided in the embodiment of the present application controls the crusher drive device to apply pressure to the crusher main shaft to adjust the size of the discharge port, thereby adjusting the proportion of the discharge particle size that meets the requirements. According to the different target particle size requirements of the material, by adjusting the pressure applied by the drive device to the crusher main shaft from the initial pressure to the target pressure, the initial size of the crusher discharge port can be quickly adjusted to a level that can make the proportion of materials that meet the target particle size meet the requirements, thereby shortening the running-in time of the crusher discharge port from the initial size to the set size, accelerating the running-in speed of the newly installed crusher, and improving the production efficiency of the mineral.

[0079] A third aspect of the embodiments of the present application provides a control system, which includes a crusher and the controller of the second aspect.

[0080] The crusher run-in control system provided in the embodiment of the present application controls the crusher drive device to apply pressure to the crusher main shaft to adjust the size of the discharge port, thereby adjusting the proportion of the discharge particle size that meets the requirements. According to the different target particle size requirements of the material, by adjusting the pressure applied by the drive device to the crusher main shaft from the initial pressure to the target pressure, the initial size of the crusher discharge port can be quickly adjusted to a level that can make the proportion of materials that meet the target particle size meet the requirements, thereby shortening the run-in time of the crusher discharge port from the initial size to the set size, accelerating the run-in speed of the newly installed crusher, and improving the production efficiency of the mineral.

[0081] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0082] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0083] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0084] Obviously, those skilled in the art may make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if such changes and modifications fall within the scope of the claims of this specification and their equivalents, this specification is intended to include such changes and modifications.

Claims

1. A crusher running-in control method, characterized in that: The crusher includes a fixed cone lining, a movable cone lining, an upper bracket, a crusher main shaft and a driving device. The fixed cone lining is fixedly connected to the upper bracket, the movable cone lining is fixedly connected to the crusher main shaft, one end of the crusher main shaft is movably connected to the upper bracket, and the other end of the crusher main shaft is connected to the driving device. The driving device is used to drive the crusher main shaft to move up and down along the extension direction of the main shaft so that the crusher discharge port reaches a set size: The crusher running-in control method comprises: Turning on the crusher, and controlling the driving device to apply initial pressure to the main shaft of the crusher; feeding the material to be crushed into the crusher; The pressure applied by the driving device to the crusher main shaft is adjusted to reach the target pressure.

2. The crusher running-in control method according to claim 1, characterized in that: The crusher further comprises an eccentric sleeve, which is sleeved on the main shaft of the crusher; an eccentric sleeve driving device connected to the eccentric sleeve via a rotating gear; The crusher running-in control method further includes: Controlling the eccentric sleeve driving device to drive the eccentric sleeve to rotate along the axial direction of the rotating gear, the rotation of the eccentric sleeve is used to drive the movable cone liner to move eccentrically along the main shaft of the crusher, thereby driving the relative movement of the movable cone liner with respect to the fixed cone liner to crush the material; The eccentric distance of the movable cone liner and the rotation speed of the movable cone liner are adjusted so that the crusher can crush the material to be crushed to a target particle size.

3. The crusher running-in control method according to claim 2, characterized in that: Adjusting the pressure applied by the driving device to the crusher main shaft to reach a target pressure comprises: Controlling the crusher to continuously crush materials; When the crusher continuously crushes materials for a duration greater than or equal to 2 hours, the pressure applied by the driving device to the crusher main shaft is controlled to increase by 0.2 MPa based on the initial pressure, and then the pressure applied is increased by 0.2 MPa every 2 hours.

4. The crusher running-in control method according to claim 2, characterized in that: Adjusting the pressure applied by the driving device to the crusher main shaft to reach the target pressure also includes: detecting a pressure value applied by the driving device to the crusher main shaft; When the pressure value is less than 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 2 hours; When the crusher continuously crushes materials for 2 hours, the pressure applied by the driving device to the main shaft of the crusher is controlled to increase by 0.2 MPa; or When the pressure value is less than 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 2 hours; When the cumulative time for the crusher to crush materials reaches 2 hours, the pressure applied by the driving device to the crusher main shaft is controlled to increase by 0.2 MPa, wherein the cumulative time for the crusher to continuously crush materials in a single time greater than or equal to 5 minutes is included in the cumulative time.

5. The crusher running-in control method according to claim 2, characterized in that: Adjusting the pressure applied by the driving device to the crusher main shaft to reach a target pressure comprises: detecting a pressure value applied by the driving device to the crusher main shaft; When the pressure value is greater than or equal to 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 1 hour; When the crusher continuously crushes materials for 1 hour, the pressure applied by the driving device to the main shaft of the crusher is controlled to increase by 0.1 MPa; or When the pressure value is greater than or equal to 3 MPa, the crusher is controlled to continuously crush the material for a duration greater than or equal to 1 hour; When the cumulative time for the crusher to crush materials reaches 1.5 hours, the pressure applied by the driving device to the crusher main shaft is controlled to increase by 0.1 MPa, wherein the time for the crusher to continuously crush materials in a single time greater than or equal to 30 minutes is included in the cumulative time.

6. The crusher running-in control method according to claim 4, characterized in that: When the cumulative time for the crusher to crush materials reaches 2 hours, controlling the pressure applied by the driving device to the main shaft of the crusher to increase by 0.2 MPa includes: When the cumulative time for the crusher to crush materials reaches an odd number of hours, controlling the pressure applied by the driving device to the main shaft of the crusher to increase by 0.1 MPa; When the cumulative time for the crusher to crush materials reaches an even number of hours, the pressure applied by the driving device to the main shaft of the crusher is controlled to increase by 0.2 MPa.

7. The crusher running-in control method according to claim 1, characterized in that: The method of starting the crusher and controlling the driving device to apply initial pressure to the main shaft of the crusher includes: detecting a pressure value applied by the driving device to the crusher main shaft; When the pressure value increases by 0.1 MPa, the crusher is controlled to run at no load for 3 to 5 minutes.

8. The crusher running-in control method according to claim 2, characterized in that: The eccentric movement distance of the eccentric sleeve ranges from 50 mm to 65 mm; and / or, The crusher discharge opening is set to a size range of 50 mm to 55 mm; and / or, The target pressure range is 5 MPa to 5.5 MPa.

9. A controller, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to execute the computer program stored in the memory to implement the crusher running-in method according to any one of claims 1 to 8.

10. A control system, characterized in that: include: A crusher and a controller as claimed in claim 9.

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