CN117797920A - Device and method for detecting abnormality of lining plate - Google Patents

Abstract

The application relates to an abnormality detection device and method for a lining plate. The abnormal detection device of the lining plate comprises a collection mechanism and a screening mechanism, wherein the collection mechanism is connected to the discharge end of the abrasive equipment and is used for collecting abrasive media discharged from the discharge end; the screening mechanism is arranged at the downstream of the collecting mechanism and can screen the abrasive media with the size larger than the preset screening size. This device can carry out real-time supervision in the equipment operation period of abrasive material equipment, receive excessive striking or excessive wearing and tearing when unusual when the welt, collection mechanism can collect discharge end exhaust abrasive material medium, with abrasive material medium and material phase separation, carry out the size screening to abrasive material medium through screening mechanism, obtain the abrasive material medium that the size is greater than preset screening size, then can indirectly draw the conclusion that welt state is unusual, unnecessary equipment shut down of abrasive material equipment has been reduced, the personnel gets into the inside safe risk of equipment has been reduced, also can avoid personnel's error, reduce the requirement to personnel skill.

Description

Device and method for detecting abnormality of lining plate

Technical Field

The application relates to the technical field of abrasive equipment, in particular to an abnormality detection device and method for a lining plate.

Background

Semi-autogenous grinding machines are the most predominant rotating equipment in mining machinery. The semi-automatic grinding machine is characterized in that a motor drives a cylinder body to rotate through a transmission part, when the cylinder body rotates, abrasive media and materials in the cylinder body are lifted to a certain height along with the rotation of the cylinder body under the action of friction force and centrifugal force, then thrown down according to a certain linear speed, internal ore is continuously impacted by the falling abrasive media and ore, crushed under the comprehensive rolling and grinding actions of the abrasive media, massive ore and an internal lining plate of the grinding machine, and the crushed qualified materials are sent out of the cylinder body by means of the impulsive force of water.

The lining board of the semi-automatic mill is divided into a feeding end lining board, a barrel lining board and a discharging end lining board according to the installation position, the thickness of the lining board is gradually reduced under the continuous impact and abrasion actions of ore and abrasive media in the running process of the equipment, and particularly, according to the design and the feeding speed influence of the semi-automatic mill, materials can gradually move towards the discharging end after entering the semi-automatic mill from the feeding end, so that the impact force received by the discharging end lining board is more obvious. Moreover, as the materials are discharged in the semi-autogenous mill quickly, the lining plate at the discharging end needs to be designed into a grid plate structure, the impact resistance of the grid plate is weak, when the materials and abrasive media pass through grid holes, abrasion can be generated to cause the grid hole size to be gradually increased, the rib size at the grid hole of the lining plate is gradually thinned, the impact resistance is reduced, and the grid hole size needs to be replaced in time when being larger. In addition, in the running process of the equipment, abnormal events of speed control of the semi-automatic mill often occur due to improper operation of operators, the material and abrasive media are too high in parabola caused by too high running speed, and the material and abrasive media can directly impact the grid plate, so that the grid plate is often damaged, a large amount of materials and abrasive media exceeding the standard size are discharged to subsequent working equipment, the subsequent working equipment and the semi-automatic mill are stopped abnormally, and full production is seriously affected.

When the abrasion state of the grid holes is detected, a person needs to enter the semi-automatic mill for inspection after the regular shutdown, and because the inside of the semi-automatic mill is a limited space after the shutdown, the air exhaust operation needs to be carried out for a long time until the oxygen content is qualified; also during the operation of the inside of the semi-autogenous mill there is a lot of pulp for discharging, so that there may be abrasive media and ore adhering to the pulp at the top of the inside of the semi-autogenous mill, with the risk of injury to personnel due to falling objects after personnel have entered. The actual rate of the semi-autogenous mill is reduced by stopping and checking regularly, the total grinding amount is reduced, and the influence on production is larger; in addition, human errors, such as inaccurate measurement and misjudgment caused by insufficient skill or negligence of personnel, can occur, so that the lining plate with defects is not found in time and still operates.

Disclosure of Invention

Based on the problem, the problem that personnel enter the interior for detection after the shutdown is needed to detect the abnormal condition of the discharging end of the lining plate and the problem that the detection operation is inconvenient are needed to be solved.

An embodiment of a first aspect of the present application provides an abnormality detection device for a liner, including:

the collecting mechanism is connected to the discharging end of the abrasive equipment and is used for collecting the abrasive medium discharged from the discharging end;

and the screening mechanism is arranged at the downstream of the collecting mechanism and can screen the abrasive media with the size larger than the preset screening size.

In one embodiment, the screening mechanism comprises:

the frame body is connected with the collecting mechanism;

the screening plate is arranged on the frame body and provided with a plurality of blanking channels;

wherein the preset screening size is configured as the size of the blanking channel, and when the size of the abrasive medium is larger than the size of the blanking channel, the abrasive medium is screened out to be positioned on the screening plate; and when the size of the abrasive medium is equal to or smaller than that of the blanking channel, the abrasive medium enters the blanking channel and is output.

In one embodiment, the collection mechanism comprises a hopper mounted on the frame, the hopper having a feed inlet and a discharge outlet in communication, the feed inlet being for the input of the abrasive media, the discharge outlet being disposed towards the screening plate.

In one embodiment, the hopper is arranged at one side of the screening plate, and the discharge port is arranged at the side wall of the hopper, which is close to the screening plate;

the hopper is internally provided with a guide plate close to the position of the discharge hole, the height of the guide plate gradually decreases in the direction towards the discharge hole, and the guide plate is arranged in a downward inclined manner and used for guiding out the abrasive medium in the hopper to the discharge hole.

In one embodiment, the height of the screening plate is gradually reduced along the self discharging direction.

In one embodiment, the screening plate comprises a plurality of rods arranged in parallel, each rod is arranged along the discharging direction of the screening plate, the rods are connected with the frame body, and a space is reserved between every two adjacent rods to form the blanking channel.

In one embodiment, the screening mechanism further comprises:

the first bearing disc is communicated with the blanking channel and is used for collecting the abrasive media with the size smaller than or equal to the preset screening size;

the second bearing plate is arranged on one side, far away from the discharge hole, of the screening plate and is used for collecting the abrasive media with the size larger than the preset screening size.

In one embodiment, the collection mechanism includes a separation mechanism, the separation mechanism is disposed at the discharge end of the abrasive device, the separation mechanism separates the abrasive medium from the material, and the abrasive medium is output to the sieving mechanism.

An embodiment of a second aspect of the present application proposes an abnormality detection method of a lining board, the abnormality detection method including:

collecting an abrasive medium discharged from a discharge end of an abrasive device, and separating the abrasive medium from a material;

sizing the abrasive media;

and when the size of the abrasive medium is larger than the preset screening size, judging that the lining plate is abnormal.

In one embodiment, the anomaly detection method further includes:

and recycling the abrasive media with the size larger than the preset screening size into the abrasive equipment.

Above-mentioned abnormal detection device of welt can carry out real-time supervision in the equipment operation period of abrasive material equipment, and when the welt state normally need not change, the abrasive material medium of size greater than preset screening size can carry out normal operation of polishing in abrasive material equipment. When the lining plate is excessively impacted or excessively worn and abnormal, the aperture of the lining plate is enlarged, abrasive media with the size larger than the preset screening size can be discharged from the discharge end of the abrasive equipment, the collecting mechanism can collect the abrasive media discharged from the discharge end, the abrasive media are separated from materials, the abrasive media are subjected to size screening through the screening mechanism, when the abrasive media with the size larger than the preset screening size are obtained through size screening, the conclusion that the state of the lining plate is abnormal can be indirectly obtained, the state of the lining plate can be known in advance, the preparation of stopping and replacing the lining plate is made, unnecessary equipment stopping of the abrasive equipment is reduced, the movable rate and the actual rate of the abrasive equipment are guaranteed, the maintenance time and the cost increased after temporary unexpected stopping are reduced, the safety risk that personnel enter the equipment is reduced, human error can be avoided, and the requirement on the skill of personnel is reduced.

Drawings

Fig. 1 is a schematic diagram of positions of an abnormality detection device and an abrasive device of a lining board according to an embodiment of the present application.

Fig. 2 is a schematic diagram of an abnormality detection device for a liner according to an embodiment of the present application.

Fig. 3 is a schematic illustration of the location of the screening and collecting mechanisms of an embodiment of the present application.

Fig. 4 is a schematic view of the internal structure of the hopper according to the embodiment of the present application.

Fig. 5 is a schematic structural view of a screening mechanism according to an embodiment of the present application.

Fig. 6 is a schematic diagram of an abnormality detection method of a backing plate according to an embodiment of the present application.

In the figure:

1. a collection mechanism; 11. a hopper; 111. a feed inlet; 112. a discharge port; 113. a guide plate; 12. a separation mechanism;

2. a screening mechanism; 21. a frame body; 22. a screening plate; 221. a rod piece; 23. a blanking channel; 24. a first carrier plate; 25. a second carrier plate;

3. an abrasive medium;

4. an abrasive device;

5. a crushing device.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The ore processing adopts the conventional stirring or acid leaching technology to produce qualified products, and the main technology comprises the following steps: the main active equipment comprises a crusher, a belt, a mill, a slurry pump, a vibrating screen, a stirring paddle and the like. The semi-autogenous mill is the most main rotating equipment in mining machinery, the ore processing amount per hour of the semi-autogenous mill is 1875t/h, the rate of adding the grinding media is 0.4kg/t, the size of the grinding media is 1.5-2 times of the allowable discharging size of the lining plate, when the material and the grinding media are smaller than the allowable discharging size of the lining plate, the material and the grinding media can be discharged through the lining plate, and the material and the grinding media which are larger than the allowable discharging size of the lining plate still continue to be ground in the semi-autogenous mill. The semi-automatic mill can grind the material, but the material is difficult to be smashed in the semi-automatic mill, therefore, the material still needs to enter crushing equipment to further crush after being output by the semi-automatic mill, if the lining plate is damaged due to excessive impact or excessive abrasion, a large amount of materials exceeding the standard size and abrasive media are discharged to the crushing equipment, so that the crushing equipment and the semi-automatic mill are abnormally stopped, the full production is seriously affected, and a regular stopping overhaul lining plate replacement strategy is formulated according to the service life of the lining plate.

Based on the above consideration, in order to solve the problem that the discharge end of the lining plate is easy to damage and abnormal, personnel need to enter the machine to detect the lining plate after the machine is stopped, and the detection operation is inconvenient, the inventor has designed an abnormal detection device and method for the lining plate through intensive research, through screening the size of a collecting box for the abrasive media discharged from the discharge end of the semi-automatic grinding machine, when the abrasive media with the size larger than the preset screening size are obtained through screening, the abnormal state of the lining plate can be judged, and then the lining plate is replaced, so that the real-time monitoring can be carried out during the operation of the equipment, unnecessary equipment stopping of the semi-automatic grinding machine is reduced, the safety risk that personnel enter the equipment is reduced, the personnel error can be avoided, and the requirement on personnel skills is reduced.

Referring to fig. 1-2, an abnormality detection device for a lining board provided in an embodiment of the present application includes a collecting mechanism 1 and a sieving mechanism 2, where the collecting mechanism 1 is connected to a discharge end of an abrasive device 4, and is used for collecting an abrasive medium 3 discharged from the discharge end, so as to uniformly convey the abrasive medium 3 into the sieving mechanism 2 for size sieving. Screening mechanism 2 sets up in the low reaches of collection mechanism 1, can screen out the abrasive material medium 3 that the size is greater than the screening size of predetermineeing among the abrasive material medium 3, so sets up, and the unusual detection device of this embodiment can carry out real-time supervision during the operation of abrasive material equipment 4 equipment, and when the welt state normally need not change, the abrasive material medium 3 of size greater than the screening size of predetermineeing can carry out normal polishing operation in abrasive material equipment 4. If the lining plate is excessively impacted or excessively worn and abnormal, the aperture of the lining plate is enlarged, abrasive media 3 with the size larger than the preset screening size are discharged from the discharge end of the abrasive equipment 4, the abrasive media 3 discharged from the discharge end are collected by the collecting mechanism 1 and then are conveyed into the screening mechanism 2, when the screening mechanism 2 screens the abrasive media 3 with the size larger than the preset screening size, the abnormal state of the lining plate can be judged, the abnormal state of the lining plate can be indirectly concluded, the state of the lining plate can be known in advance, the preparation of stopping and replacing the lining plate is well carried out, unnecessary equipment stopping of the abrasive equipment 4 is reduced, the increased maintenance time and cost after temporary unexpected stopping are reduced, the safety risk of personnel entering the equipment is reduced, the personnel error is avoided, and the requirement on personnel skills is reduced.

Referring to fig. 2-3, in some embodiments, screening mechanism 2 includes a frame 21 and a screening plate 22, where frame 21 is coupled to collection mechanism 1 to facilitate accurate delivery of abrasive media 3 such that abrasive media 3 may smoothly fall onto screening plate 22. The screening plate 22 is mounted on the frame 21, a plurality of blanking channels 23 are provided on the screening plate 22, and the preset screening size is configured as the size of the blanking channels 23, that is, the preset screening size can be adjusted by adjusting the inner hole size of the blanking channels 23 so as to adjust the replacement standard of the lining plate.

When the size of the abrasive medium 3 is larger than the size of the blanking channel 23, the abrasive medium 3 is screened out to be positioned on the screening plate 22, namely, when the existence of the abrasive medium 3 which is larger than the size of the blanking channel 23 is identified on the screening plate 22, the abnormal state of the lining plate can be judged, the operation is simple, and the observation is more visual. When the size of the abrasive medium 3 is equal to or smaller than the size of the blanking channel 23, the abrasive medium 3 enters the blanking channel 23 and is output, so that the abrasive medium 3 with the size equal to or smaller than the preset screening size is separated from the abrasive medium 3 with the size larger than the preset screening size, and the abrasive medium 3 with the size larger than the preset screening size is recovered after the lining plate is replaced and is sent into the abrasive equipment 4 for recycling, so that the running cost of the equipment is reduced.

In this embodiment, the frame 21 may be disposed below the collecting mechanism 1, the discharging position of the collecting mechanism 1 may be disposed on a side portion or a lower portion of the frame, the sieving plate 22 is disposed near the discharging position of the collecting mechanism 1, and the plurality of blanking channels 23 may be all communicated with the discharging position of the collecting mechanism 1. The shape of the blanking passage 23 may be selected according to the screening requirements, and the blanking passage 23 may be, but is not limited to, a circular hole or a polygonal hole.

Referring to fig. 2-3, in some embodiments, the collecting mechanism 1 includes a hopper 11, the hopper 11 is mounted on a frame 21, the hopper 11 has a feed inlet 111 and a discharge outlet 112 which are connected, the feed inlet 111 is used for feeding the abrasive media 3, the discharge outlet 112 is arranged towards the screening plate 22, so that the abrasive media 3 can enter the hopper 11 from the feed inlet 111 to be collected and then be output onto the screening plate 22 through the discharge outlet 112, impact of the falling of the abrasive media 3 to the screening plate 22 can be reduced, screening operation errors are reduced, and the hopper 11 can also have transition and blocking functions on conveying the abrasive media 3, so that the abrasive media 3 are prevented from falling off.

In this embodiment, the hopper 11 may be designed as an open structure with the feed expanded, and the size of the feed inlet 111 is larger than that of the discharge outlet 112, so as to facilitate the input of the abrasive medium 3.

Referring to fig. 1-2, in some embodiments, the collecting mechanism 1 further includes a separating mechanism 12, where the separating mechanism 12 is disposed at the discharge end of the abrasive device 4, and the separating mechanism 12 separates the abrasive medium 3 from the material, so that the abrasive medium 3 is output onto the sieving mechanism 2, and the material is conveyed into the pulverizing device 5 for further pulverizing operation or into the storage space for storage. So set up, abrasive medium 3 is discharged the back along with the discharge end of material from abrasive equipment 4, can get into separating mechanism 12 and material and separate, avoided the interference of material to abrasive medium 3 screening operation, improved abrasive medium 3's size screening accuracy.

In this embodiment, separation mechanism 12 may be, but is not limited to being, a de-ironing separator or a magnetic separator.

Referring to fig. 3-4, in some embodiments, hopper 11 is disposed on one side of screening plate 22, and discharge port 112 is formed on a side wall of hopper 11 adjacent to screening plate 22, so that abrasive media 3 fall and are input, and then output from discharge port 112 on a side wall of hopper 11 onto screening plate 22, so as to reduce impact of abrasive media 3 falling on screening plate 22. Be provided with deflector 113 in the hopper 11, deflector 113 is close to discharge gate 112 position department setting, the deflector 113 highly reduces gradually in the direction towards discharge gate 112, be the downward sloping setting, so that deflector 113 can apply the thrust that is close to the motion of discharge gate 112 to abrasive media 3, namely deflector 113 is from keeping away from the one end of discharge gate 112 to being close to one end of discharge gate 112, highly reduces gradually, form the inclined plate structure that draws close gradually to discharge gate 112, can lead out abrasive media 3 in the hopper 11 to discharge gate 112, so set up, deflector 113 can make abrasive media 3 in the hopper 11 export more smoothly to screening board 22, reduce the detection error that abrasive media 3 stopped in the hopper 11 and arouse, the accuracy of anomaly detection judgement has been improved.

In some embodiments, the height of the sieving plate 22 is gradually reduced along the discharging direction of the sieving plate 22, so that after the abrasive medium 3 is output from the discharging hole 112 to the sieving plate 22, the sieving plate 22 can apply a pushing force to the abrasive medium 3 moving away from the discharging hole 112, for example, the sieving plate 22 can be gradually and downwardly inclined along with being far away from the hopper 11, so that the sieving plate 22 can convey and guide the abrasive medium 3 output from the discharging hole 112, the stay of the abrasive medium 3 at the position close to the discharging hole 112 is reduced, and the abrasive medium 3 can also be moved a certain distance under the guiding action of the sieving plate 22 after being conveyed onto the sieving plate 22, so that the abrasive medium 3 can be more dispersed on the sieving plate 22, and the accumulation of the abrasive medium 3 is reduced.

In this embodiment, the included angle between the screening plate 22 and the horizontal direction, the included angle between the guide plate 13 and the horizontal direction may be equal, or the included angle between the screening plate 22 and the horizontal direction may be smaller than the included angle between the guide plate 13 and the horizontal direction, and the included angle between the screening plate 22 and the horizontal direction may be set according to the screening requirement, so that it may be ensured that enough time is required to screen the abrasive medium 3 before reaching the end of the screening plate 22 far away from the discharge port 112.

In other alternative embodiments, the screen plate 22 may also be disposed horizontally.

Referring to fig. 4-5, in some embodiments, the screening plate 22 includes a plurality of rods 221 arranged in parallel, each rod 221 is arranged along a discharging direction of the screening plate 22, the rods 221 are connected with the frame 21, the frame 21 can support each rod 221, a gap is formed between adjacent rods 221 to form a blanking channel 23, so that after being output from the discharging hole 112, the abrasive medium 3 can be located between adjacent rods 221, the abrasive medium 3 with a size greater than a preset screening size can be smoothly conveyed along a length direction of the rods 221, and the abrasive medium 3 with a size smaller than or equal to the preset screening size can smoothly fall into the blanking channel 23 between the adjacent rods 221 after being output from the discharging hole 112, so that blocking in the discharging direction of the abrasive medium 3 is reduced, conveying blanking is smoother, retention condition of the abrasive medium 3 with a size smaller than or equal to the preset screening size on the screening plate 22 is reduced, and screening operation is more accurate.

Referring to fig. 2-3, in some embodiments, the screening mechanism 2 further includes a first carrier plate 24, where the first carrier plate 24 is in communication with the blanking channel 23, and is configured to collect the abrasive media 3 with a size less than or equal to a preset screening size, so as to facilitate centralized processing of the abrasive media 3 and avoid scattering of the abrasive media. For example, the first carrier plate 24 may be located below the screening plate 22, and the abrasive media 3 may fall onto the first carrier plate 24 after passing through the blanking channel 23. The first carrying tray 24 may have one end connected to the sieving plate 22 and the other end connected to the frame 21 to form a triangular structure, i.e. the first carrying tray 24, the sieving plate 22 and the frame 21 may support each other in pairs, so that the structure is stable. Wherein the first carrier plate 24 may be disposed in a horizontal direction for placement on the ground.

Referring to fig. 2-3, in some embodiments, the screening mechanism 2 further includes a second carrying tray 25, where the second carrying tray 25 is disposed downstream of the discharge direction of the screening plate 22, that is, the second carrying tray 25 is located on a side of the screening plate 22 away from the hopper 11, and the second carrying tray 25 is used for collecting the abrasive media 3 with a size greater than a preset screening size, so as to facilitate centralized storage of the abrasive media 3, reduce scattering, and facilitate recycling.

Wherein, the second bearing plate 25 can be independently arranged, and is arranged on one side of the sieving plate 22 far away from the hopper 11, and can be used for inputting the abrasive media 3 on the sieving plate 22. Or, the second carrying tray 25 may be detachably connected to the screening plate 22 or the frame 21, i.e. it is convenient to fix, reduce displacement, and may be disassembled as needed.

In some embodiments, the lining plate abnormality detection device may further include an alarm mechanism, which may be connected to the screening mechanism 2, for example, the alarm mechanism may be disposed at an end of the screening plate 22 away from the hopper 11, specifically, the alarm mechanism may include an alarm and a trigger member that are connected in communication, and when the screening mechanism 2 screens out the abrasive media 3 having a size greater than a preset screening size, the trigger member generates an alarm signal and transmits the alarm signal to the alarm, and the alarm gives an alarm, so that the alarm effect can be improved. The triggering member may be, but not limited to, an infrared sensor, a travel switch, or a radar, or the triggering member may be configured as a visual detection system, which can identify the abrasive media 3 when the screening mechanism 2 screens out the abrasive media 3 having a size larger than a preset screening size. The alarm mode of the alarm can be, but not limited to, audible and visual alarm.

In this embodiment, the trigger piece may also be connected to the control system of the abrasive device 4 in a communication manner, and when the trigger piece generates an alarm signal, the alarm signal may also be transmitted to the control system of the abrasive device 4, where the control system of the abrasive device 4 may adjust the abrasive device 4 to stop or reduce the running speed, and the automation is higher.

Referring to fig. 1 and 6, the method for detecting an abnormality of a liner according to an embodiment of the present application includes the following steps:

s200, collecting the abrasive media 3 discharged from the discharge end of the abrasive equipment 4, and separating the abrasive media 3 from materials, so as to avoid mixing the materials with the abrasive media 3, interfere the screening operation of the abrasive media 3, improve the size screening accuracy of the abrasive media 3, and reduce misjudgment on abnormal state of the lining plate.

S300, carrying out size screening on the abrasive medium 3;

s400, when the size of the abrasive medium 3 is larger than the preset screening size, judging that the state of the lining plate is abnormal, wherein the preset screening size is the screening standard of the abrasive medium 3, the abrasive medium 3 with the size larger than the preset screening size in the abrasive medium 3 is screened out for special identification, and the abrasive medium 3 with the size smaller than or equal to the preset screening size is not screened out.

So set up, this embodiment can carry out real-time supervision during the equipment operation of abrasive material equipment 4, and when welt state normally need not change, the abrasive material medium 3 of size greater than predetermine screening size can carry out normal operation of polishing in abrasive material equipment 4. When the lining plate is excessively impacted or excessively worn and abnormal, the aperture of the lining plate is enlarged, abrasive media 3 with the size larger than the preset screening size are discharged from the discharge end of the abrasive equipment 4, the abrasive media 3 are subjected to size screening, when the abrasive media 3 with the size larger than the preset screening size are obtained through size screening, the abnormal conclusion of the state of the lining plate can be indirectly obtained, the state of the lining plate can be known in advance, the preparation of stopping and replacing the lining plate is made, unnecessary equipment stopping of the abrasive equipment 4 is reduced, the mobility and the actual rate of the abrasive equipment 4 are ensured, the increased maintenance time and the cost after temporary accidental stopping are reduced, the safety risk of personnel entering the equipment is reduced, personnel errors are avoided, the requirement on personnel skill is reduced, the problem that the discharge end of the lining plate is easy to damage and abnormal, personnel enter the interior after stopping is needed to be detected, and the operation is inconvenient is solved.

In this embodiment, the abrasive device 4 may be, but not limited to, a semi-autogenous mill, and the screening method for sizing the abrasive medium 3 may be, but not limited to, physical filtration by the screening plate 22 or shooting identification by a visual detection system, and of course, screening identification may be performed jointly by multiple screening methods such as the screening plate 22 and the visual detection system, so as to improve the accuracy of the abnormality determination structure. It should be noted that, the abrasive medium 3 is an implementation body of crushing force, most of the abrasive medium 3 is a casting or forging piece with similar shapes and wear resistance, if the lining plate is not abnormal, the probability that the abrasive medium 3 with a size larger than the preset screening size is discharged from the discharge end is lower, compared with the collected materials, the embodiment mainly collects and screens the abrasive medium 3, and the accuracy of abnormal detection of the lining plate can be improved.

The separation mode of the material and the abrasive medium 3 may be selected according to the difference between the material or the quality of the abrasive medium 3 and the material, and the separation mode may be, but is not limited to, magnetic separation. For example, the material of the abrasive medium 3 may be selected to be a magnetic material, and the abrasive medium 3 may be separated from the material by magnetic separation, so as to collect the abrasive medium 3.

In some embodiments, the preset screening size is greater than or equal to the preset discharging size of the lining board, and the preset discharging size is the size of the material or the abrasive medium 3 which is allowed to be discharged when the lining board works normally in a state that no abnormality occurs, and the preset screening size needs to be greater than or equal to the preset discharging size so as to reduce the interference of the abrasive medium 3 discharged in a normal state to the size screening operation and reduce the judgment error of the abnormality of the lining board state.

In some embodiments, the ratio of the preset screening size to the preset discharging size ranges from 1.2 to 1.4, that is, when the abrasive medium 3 is discharged and the lining plate is slightly worn in a certain range, the abrasive medium 3 is not screened out for special identification, the lining plate is allowed to be used in a slightly worn state, unnecessary replacement of the lining plate is reduced, and the use cost is saved.

For example, taking the preset discharging size of the lining plate as 70 mm as an example, the preset screening size can be selected to be 90 mm, when the abrasive medium 3 with the size larger than 90 mm is obtained through size screening identification, the abnormal state of the lining plate is judged, and when the discharging size of the lining plate is within 70 mm-90 mm, the lining plate can be allowed to be used, so that the polishing requirement of materials can be met, the shutdown replacement of the lining plate can be reduced, and the use cost is saved.

In some embodiments, the abnormality detection method further includes recovering the abrasive media 3 with a size greater than a preset screening size into the abrasive device 4 after the lining plate is replaced, that is, the screened abrasive media 3 can not only prompt that the state of the lining plate is abnormal, but also put the screened abrasive media 3 into the abrasive device 4 again after the lining plate is replaced, and the polishing operation on the materials is continued, so that the abrasive media 3 can be reused, and the running cost of the device is reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. An abnormality detection device for a lining board, comprising:

the collecting mechanism (1) is connected to the discharging end of the abrasive equipment and used for collecting the abrasive medium (3) discharged from the discharging end;

screening mechanism (2), screening mechanism (2) set up in the low reaches of collection mechanism (1), can be with the size is greater than abrasive material medium (3) of predetermineeing screening size in abrasive material medium (3) screening.

2. The lining board abnormality detection device according to claim 1, wherein the screening mechanism (2) includes:

the frame body (21), the said frame body (21) links with said collection mechanism (1);

a screening plate (22), wherein the screening plate (22) is arranged on the frame body (21), and a plurality of blanking channels (23) are arranged on the screening plate (22);

wherein the preset screening size is configured as the size of the blanking passage (23).

3. The lining board abnormality detection device according to claim 2, characterized in that the collecting mechanism (1) includes a hopper (11), the hopper (11) is mounted on the frame body (21), the hopper (11) has a feed port (111) and a discharge port (112) that are communicated, the feed port (111) is used for feeding in the abrasive medium (3), and the discharge port (112) is provided toward the screening plate (22).

4. A lining board abnormality detection apparatus according to claim 3, characterized in that the hopper (11) is provided on one side of the screening plate (22), and the discharge port (112) is provided on a side wall of the hopper (11) close to the screening plate (22);

the hopper (11) is internally provided with a guide plate (113) close to the position of the discharge hole (112), the guide plate (113) gradually reduces in height in the direction towards the discharge hole (112) and is arranged in a downward inclined manner, and the guide plate is used for guiding out the abrasive media (3) in the hopper (11) to the discharge hole (112).

5. The lining board abnormality detection device according to claim 2, characterized in that the screening plate (22) gradually decreases in height in the self discharge direction.

6. The lining board abnormality detection device according to claim 2, characterized in that the screening plate (22) includes a plurality of rod members (221) arranged in parallel, each of the rod members (221) being arranged along a discharge direction of the screening plate (22), the rod members (221) being connected to the frame body (21), and adjacent rod members (221) having a space therebetween to form the blanking passage (23).

7. A lining board abnormality detection apparatus according to claim 3, characterized in that the screening mechanism (2) further comprises:

the first bearing disc (24) is communicated with the blanking channel (23) and is used for collecting the abrasive media (3) with the size smaller than or equal to the preset screening size;

the second bearing plate (25) is arranged at the downstream of the discharging direction of the sieving plate (22), and the second bearing plate (25) is used for collecting the abrasive media (3) with the size larger than the preset sieving size.

8. The abnormality detection device for a lining board according to any one of claims 1 to 7, characterized in that the collection mechanism (1) includes a separation mechanism (12), the separation mechanism (12) is provided at the discharge end of the abrasive equipment, the separation mechanism (12) separates the abrasive medium (3) from the material, and the abrasive medium (3) is output onto the screening mechanism (2).

9. An abnormality detection method of a lining board, characterized by comprising:

collecting an abrasive medium (3) discharged from a discharge end of an abrasive device, and separating the abrasive medium (3) from a material;

sizing the abrasive medium (3);

and when the size of the abrasive medium (3) is larger than the preset screening size, judging that the lining plate is abnormal.

10. The method of abnormality detection for a lining plate according to claim 9, characterized in that the abnormality detection method further comprises:

and after the lining plate is replaced, recycling the abrasive media (3) with the size larger than the preset screening size into the abrasive equipment.