Intelligent sweeper for head of conveying belt and sweeping method of intelligent sweeper

Abstract

The invention provides a conveyor belt head intelligent sweeper and a sweeping method thereof, and relates to the field of conveyor belt sweeping, the conveyor belt head intelligent sweeper comprises a first sweeper, a second sweeper and a third sweeper which are all arranged on the outer side of a conveyor belt at a head roller, and the first sweeper is located in the middle area of the conveyor belt in the width direction; the two sweepers are located on the two side areas of the conveying belt in the width direction. The sweeping range of the three sweepers to the conveying belt comprises a middle area and two side areas in the width direction of the conveying belt; a flattening rod is further arranged on the conveying belt. A first sweeper is normally arranged and normally put in, after a conveying belt is swept by the first sweeper, the first sweeping efficiency is monitored by a flattening rod, and a pressure sensor is used for controlling the putting of a second sweeper and a third sweeper, so that the sweeping pressure of a single sweeper is reduced, the conveying belt is prevented from forming large pressure locally, and abrasion and local damage are prevented; abrasion of the conveying belt is greatly reduced, operation resistance is reduced, and meanwhile the service life of the sweeper can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor belt cleaning, and in particular to an intelligent cleaner for a conveyor belt head and a cleaning method thereof. Background Art

[0002] At present, in the process of bulk material transportation, there are problems such as cleaning and protection of conveyor belts, incomplete cleaning and damage to conveyor belts when using existing equipment and technologies.

[0003] At present, conventional conveyor belt head cleaners are often arranged in one or two parallel paths. However, since the cross-section of the conveyor belt is often not horizontal during use, the contact surface between the cleaner and the conveyor belt cannot fit closely, resulting in part of the material sticking to the conveyor belt when conveying bulk materials with smaller particle size or higher moisture content, leading to problems such as on-site environmental pollution and material loss. For this, the pressure is often increased to reduce the gap between the cleaner in the middle part and the conveyor belt, or another cleaner is added at the rear and the pressure is increased. However, there are many problems in use. When the cleaner pressure is increased, the gap in the middle of the conveyor belt is reduced, and the cleaners on both sides are in too close contact with the conveyor belt, resulting in significantly increased wear. At this time, if there is a slight warping and uneven surface area at the conveyor belt joint, the probability of conveyor belt damage will increase significantly under long-term operation; adding a cleaner will greatly increase the rotational resistance within a shorter distance, and the tension on both sides of the conveyor belt will increase, which will aggravate the deformation of the conveyor belt and increase the probability of damage during use.

[0004] In addition, the commonly used sweeper material is polyurethane. In order to obtain a better cleaning effect, pressurization will inevitably increase the degree of cleaning wear and increase the cost of use. Summary of the invention

[0005] The present invention provides an intelligent cleaner for a conveyor belt head and a cleaning method thereof, which are used to solve at least one of the technical problems raised by the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides an intelligent cleaner for the head of a conveyor belt, comprising a first-pass cleaner, a second-pass cleaner, a third-pass cleaner, and a flattening rod; The first cleaning device is arranged outside the conveyor belt at the head roller, and the first cleaning device is located in the middle area in the width direction of the conveyor belt; The second-pass cleaner is arranged outside the conveyor belt at the head roller, and the second-pass cleaner is arranged below the first-pass cleaner, and the second-pass cleaner is located at both sides of the conveyor belt in the width direction; The three-way cleaner is arranged outside the conveyor belt at the head roller, and the three-way cleaner is located below the two-way cleaner. The cleaning range of the conveyor belt by the three-way cleaner includes the middle area and the two side areas in the width direction of the conveyor belt. A flattening rod is arranged below the first cleaner on the conveyor belt.

[0007] Preferably, two symmetrical pressure sensors are arranged on the surface of the flattening rod.

[0008] Preferably, limiters are arranged at both ends of the flattening rod.

[0009] Preferably, it further includes: A control device: The control device is electrically connected to the first cleaner, the second cleaner, and the third cleaner respectively; A memory: Stores the detection values of the pressure sensors, and the memory is electrically connected to the control device.

[0010] Preferably, it further includes: A temperature detection module: Used to detect the surface temperature of the bulk material at multiple temperature detection points on the conveyor belt; A humidity detection module: Used to detect the surface humidity of the bulk material on the conveyor belt; An ambient humidity detection module: Used to detect the ambient humidity where the conveyor belt is located; A speed sensor: Used to detect the conveying speed of the conveyor belt; The control device is electrically connected to the temperature detection module, the humidity detection module, the ambient humidity detection module, and the speed sensor respectively.

[0011] Preferably, the control device includes: A first determination module: Used to determine the current target cleaning force of the first cleaner based on the detection values of the temperature detection module, the humidity detection module, the ambient humidity detection module, and the speed sensor within the current time period; A first control module: Used to control the first cleaner to work during the process from the current determination of the first determination module to the next determination, so that the actual cleaning force of the first cleaner on the conveyor belt is the current target cleaning force when the head of the conveyor belt needs to be cleaned.

[0012] Preferably, when conveying bulk material containing moisture, the target cleaning force is calculated based on the following formula: ; ; W is the cleaning force adjustment coefficient corresponding to the conveying speed of the conveyor belt; is the average detection value of the humidity detection module within the current time period; is the density of water; is the density of the solid of the bulk material conveyed on the conveyor belt; R is the particle size of the heat-dissipating solid conveyed on the conveyor belt; is the surface tension of water at the reference material temperature; is the contact angle of water at the contact interface between the bulk material and the conveyor belt; cos is the cosine, B is the average pore radius of the bulk material on the conveyor belt; S is the contact area between a single sweeper and the bulk material on the conveyor belt; K is the correction factor; is the reference material temperature; is the average detected value of the humidity detection module during the current time period; is the maximum detected value of the humidity detection module during the current time period; is the minimum detected value of the humidity detection module during the current time period; is the standard deviation of the detected values of the humidity detection module during the current time period; is the relative ambient humidity detected by the ambient humidity detection module during the current time period; takes the value of 3.14.

[0013] Preferably, a plurality of pressure sensors are arranged at intervals along the length direction of the pressure rod; when each batch of bulk material is conveyed by the conveyor belt, the flow rate of the bulk material entering the conveyor belt at the upper end of the head drum is the same and the belt speed of the conveyor belt is the same; the intelligent sweeper at the head of the conveyor belt further includes: An initial evaluation module, which is used to perform a cleaning evaluation before each batch of the current batch of bulk material is conveyed; during the cleaning evaluation, control the actual cleaning force of a single sweeper on the conveyor belt to be the current target cleaning force corresponding to the current batch of bulk material; The initial evaluation module includes: A first acquisition unit: acquires the detected values of the pressure sensors when the pressure rod passes through near the head drum and reaches the upper end of the tail drum without starting a single sweeper; A second acquisition unit: acquires the detected values of the pressure sensors when the pressure rod reaches the upper end of the tail drum after passing through a single sweeper only after starting the single sweeper; A first calculation unit: used to calculate a first ratio and a second ratio; ; ; is the first ratio; is the second ratio; is the average detected value of all the pressure sensors in the areas on both sides of the pressure rod length direction acquired by the first acquisition unit; is the average detected value of all the pressure sensors in the areas on both sides of the pressure rod length direction acquired by the second acquisition unit; is the average detected value of all the pressure sensors in the middle area of the pressure rod length direction acquired by the first acquisition unit; is the average detected value of all the pressure sensors in the middle area of the pressure rod length direction acquired by the second acquisition unit; A first determination unit: used when Greater than the first preset ratio, it is determined that the second sweeper needs to be started; when Greater than the second preset ratio, it is determined that the third sweeper needs to be started.

[0014] Preferably, the initial evaluation module further includes: The second calculation unit: used to calculate the current target cleaning force of the second sweeper and the current target cleaning force of the third sweeper based on the first calculation unit; ; ; is the current target cleaning force of the second sweeper; is the current target cleaning force of the third sweeper; is the maximum detection value of all pressure sensors in the middle area of the pressure bar in the length direction obtained by the second acquisition unit; is the average detection value of all pressure sensors in the two side areas of the pressure bar in the length direction obtained by the second acquisition unit The second control module: used to control the second sweeper to work during the process from the current determination by the first determination unit that the second sweeper needs to be started to the next determination by the first determination module, so that the actual cleaning force of the second sweeper on the conveyor belt is the calculated current target cleaning force of the second sweeper when the head of the conveyor belt needs to be cleaned; The third control module: used to control the third sweeper to work during the process from the current determination by the first determination unit that the third sweeper needs to be started to the next determination by the first determination module, so that the actual cleaning force of the third sweeper on the conveyor belt is the current target cleaning force of the third sweeper when the head of the conveyor belt needs to be cleaned.

[0015] The present invention also discloses a cleaning method for an intelligent sweeper at the head of a conveyor belt, including: Normally, only one sweeper is put into operation. When the conveyor belt runs, the head roller drives the conveyor belt to run, and the first sweeper is used to clean the middle area in the width direction of the conveyor belt; A flattening bar is arranged behind the first sweeper. The flattening bar rotates with the conveyor belt. The pressure sensors on the flattening bar can monitor the situation of the sticky materials on the surface of the conveyor belt and form signals according to the position of the sticky area, and selectively put into operation the subsequent sweeper. If there is more sticky material on both sides in the width direction of the conveyor belt, the second sweeper is put into operation. If there is more sticky material in the middle in the width direction of the conveyor belt, the third sweeper is put into operation.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The main technical feature of the present invention is that the cleaner at the head of the conveyor belt is optimized from the conventional one or two parallel arrangements to a three - combination type, reducing the pressure between a single cleaner and the belt (conveyor belt). At the same time, different cleaners are intelligently put into use according to the cleaning effect after a single cleaner.

[0017] An intelligent cleaner for the head of a conveyor belt and its cleaning method according to the present invention can balance the pressure, ensure the cleaning effect of the conveyor belt, guarantee the safe operation of the conveyor belt, avoid damage caused by excessive pressure, and extend the service life of the cleaner without using excessive pressure, reducing the use cost and improving the economic benefits, with high feasibility and innovation. The first cleaner is normally arranged and put into use regularly. After the conveyor belt is cleaned by it, the flattening rod monitors the cleaning efficiency of the first cleaner, and the pressure sensor controls the input of the second cleaner and the third cleaner, reducing the cleaning pressure of a single cleaner, ensuring that no large pressure is formed locally on the conveyor belt, preventing wear and local damage, greatly reducing the wear of the conveyor belt, reducing the running resistance, and also extending the service life of the cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is the structural schematic diagram of the present invention Figure 1 ; Figure 2 is the structural schematic diagram of the present invention Figure 2 ; Figure 3 is the structural schematic diagram of the flattening rod of the present invention.

[0020] REFERENCE SIGNS: 1. Head roller; 2. Conveyor belt; 3. First cleaner; 4. Flattening rod; 5. Second cleaner; 6. Third cleaner; 7. Input position of the second cleaner; 8. Input position of the third cleaner; 9. Limiter; 10. Pressure sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts belong to the scope of protection of the present invention.

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention and are not used to limit the present invention.

[0023] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and do not particularly refer to the meaning of order or sequence. Nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions and technical features between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] The present invention provides the following embodiments Embodiment 1. The embodiment of the present invention provides a smart cleaner for the head of a conveyor belt and its cleaning method, as Figure 1 、 Figure 2 、 Figure 3 shown, including a first cleaner 3, a second cleaner 5, a third cleaner 6, and a flattening rod 4; The first cleaner 3 is arranged outside the conveyor belt 2 at the head roller 1, and the first cleaner 3 is located in the middle area in the width direction of the conveyor belt 2; The second cleaner 5 is arranged outside the conveyor belt 2 at the head roller 1, and the second cleaner 5 is arranged below the first cleaner 3, and the second cleaner 5 is located in the two side areas in the width direction of the conveyor belt 2; see, for example, Figure 1 the input position 7 of the second cleaner in; The third cleaner 6 is arranged outside the conveyor belt 2 at the head roller 1, and the third cleaner 6 is located below the second cleaner 5. The cleaning range of the third cleaner 6 for the conveyor belt 2 includes the middle area and the two side areas in the width direction of the conveyor belt 2; see, for example, Figure 1 the input position 8 of the third cleaner in; A flattening rod 4 is arranged below the first cleaner 3 on the conveyor belt 2.

[0025] Two symmetric pressure sensors 10 are arranged on the surface of the flattening rod 4.

[0026] Limiters 9 are provided at both ends of the flattening rod 4.

[0027] The present invention also discloses a cleaning method for the intelligent cleaner at the head of the conveyor belt, including: Normally, only one cleaner 3 is put into operation. When the conveyor belt 2 runs, the head roller 1 drives the conveyor belt 2 to run, and the one cleaner 3 is used to clean the middle area in the width direction of the conveyor belt 2; A flattening rod 4 is arranged behind the one cleaner 3. The flattening rod 4 rotates with the conveyor belt 2. The pressure sensor 10 on the flattening rod 4 can monitor the sticky materials on the surface of the conveyor belt 2, form a signal according to the position of the sticky area, and selectively put into operation the cleaners behind it. If there is more sticky material on both sides in the width direction of the conveyor belt 2, the two cleaners 5 are put into operation; if there is more sticky material in the middle in the width direction of the conveyor belt 2, the three cleaners 6 are put into operation.

[0028] The working principle and beneficial effects of the above technical solution are as follows: When the conveyor belt 2 runs, the head roller 1 drives the conveyor belt 2 to run. Due to the physical characteristics of the conveyor belt 2, its thickness a at the farthest end of the head roller 1 is lower than its normal thickness A. Therefore, the one cleaner 3 focuses on the middle area and performs hanging cleaning on the main adhesion area. Since it mainly adheres to the concave part, it does not need to increase too much pressure on both sides. A flattening rod 4 is arranged behind it. It rotates with the conveyor belt 2. The pressure sensor 10 on it can monitor the sticky materials on the surface of the conveyor belt, form a signal according to the position of the sticky area, and selectively put into operation the cleaners behind it. If there is more on both sides, the two cleaners 5 are put into operation; if there is more in the middle, the three cleaners 6 are put into operation. Normally, only one cleaner 3 is put into operation to avoid excessive wear and resistance.

[0029] The main technical feature of the present invention is that the cleaners at the head of the conveyor belt 2 are optimized from the conventional one or two arranged in parallel to three combined ones, reducing the pressure between the single cleaner and the belt (conveyor belt), and at the same time, intelligently putting into operation different cleaners according to the cleaning effect after the one cleaner 3.

[0030] The intelligent cleaner at the head of the conveyor belt and its cleaning method of the present invention can balance the pressure, ensure the cleaning effect of the conveyor belt, ensure the safe operation of the conveyor belt, avoid damage caused by excessive pressure, and at the same time, without using excessive pressure, it can also extend the service life of the cleaner, reduce the use cost, improve the economic benefits, and has high feasibility and innovation.

[0031] Embodiment 2 further includes: Control device: The control device is electrically connected to the first sweeper 3, the second sweeper 5, and the third sweeper 6 respectively; Memory: Stores the detection values of the pressure sensor, and the memory is electrically connected to the control device.

[0032] Comprising: Temperature detection module: Used to detect the surface temperature of the bulk material at multiple temperature detection points on the conveyor belt 2; Humidity detection module: Used to detect the surface humidity of the bulk material on the conveyor belt 2; Ambient humidity detection module: Used to detect the ambient humidity where the conveyor belt 2 is located; Speed sensor: Used to detect the conveying speed of the conveyor belt 2; The control device is electrically connected to the temperature detection module, the humidity detection module, the ambient humidity detection module, and the speed sensor respectively.

[0033] The control device includes: First determination module: Used to determine the current target cleaning force of the first sweeper 3 based on the detection values of the temperature detection module, the humidity detection module, the ambient humidity detection module, and the speed sensor within the current time period; First control module: Used to control the first sweeper 3 to work during the process from the current determination by the first determination module to the next determination, so that the actual cleaning force of the first sweeper 3 on the conveyor belt 2 is the current target cleaning force when the head of the conveyor belt 2 needs to be cleaned.

[0034] When conveying bulk material containing moisture (with relatively high moisture content), the target cleaning force is calculated based on the following formula: ; ; W is the cleaning force adjustment coefficient corresponding to the conveying speed of the conveyor belt 2; is the average detection value of the humidity detection module within the current time period; is the density of water; is the density of the solid of the bulk material conveyed on the conveyor belt 2; R is the particle size of the heat-dissipating solid conveyed on the conveyor belt 2; is the surface tension of water at the reference material temperature; is the contact angle of water at the contact interface between the bulk material and the conveyor belt 2; cos is the cosine, B is the average pore radius of the bulk material on the conveyor belt 2; S is the contact area between the first sweeper 3 and the bulk material on the conveyor belt 2; K is the correction coefficient; is the reference material temperature; is the average detection value of the humidity detection module within the current time period; is the maximum detection value of the humidity detection module within the current time period; is the minimum detection value of the humidity detection module within the current time period; is the standard deviation of the detection values of the humidity detection module within the current time period; is the relative ambient humidity detected by the ambient humidity detection module within the current time period; The value is 3.14.

[0035] The beneficial effects of the above technical solution are as follows: During the entire working process of the conveyor belt of the present invention, the first determination module can make a determination once before each batch of bulk materials is conveyed, or can make several determinations during the conveyance of each batch of bulk materials; Temperature detection module: used to detect the surface temperature of the bulk materials at multiple temperature detection points on the conveyor belt 2; Humidity detection module: used to detect the surface humidity of the bulk materials on the conveyor belt 2; Ambient humidity detection module: used to detect the ambient humidity where the conveyor belt 2 is located; Speed sensor: used to detect the conveying speed of the conveyor belt 2; Based on the detection values of the temperature detection module, humidity detection module, ambient humidity detection module, and speed sensor within the current time period, the current target cleaning force of the first cleaner 3 is determined, and the calculation is reliable, ensuring the cleaning effect on the conveyor belt.

[0036] And the current target cleaning force of the first cleaner 3 can be determined multiple times. The first control module: used to control the first cleaner 3 to work during the process from the current determination of the first determination module to the next determination when it is necessary to clean the head of the conveyor belt 2, so that the actual cleaning force of the first cleaner 3 on the conveyor belt 2 is the current target cleaning force, ensuring reliable cleaning of the entire conveying process of the conveyor belt 2.

[0037] Embodiment 3, based on Embodiment 1 or 2, a plurality of pressure sensors 10 are arranged at intervals along the length direction of the pressure rod 4; when each batch of bulk materials is conveyed through the conveyor belt 2, the flow rate of the bulk materials entering the upper part of the head roller 1 of the conveyor belt 2 is the same and the belt speed of the conveyor belt 2 is the same; the intelligent cleaner at the head of the conveyor belt 2 further includes: Initial evaluation module, the initial evaluation module is used to perform a cleaning evaluation once before each batch of the current batch of bulk materials is conveyed; during the cleaning evaluation process, control the actual cleaning force of the first cleaner 3 on the conveyor belt 2 to be the current target cleaning force corresponding to the current batch of bulk materials; The initial evaluation module includes: First acquisition unit: acquire the pressure sensor detection values when the pressure rod 4 passes through near the head roller 1 and reaches the upper end of the tail roller when the first cleaner 3 is not started; Second acquisition unit: acquire the pressure sensor detection values when the pressure rod 4 reaches the upper end of the tail roller after passing through the first cleaner 3 only after the first cleaner 3 is started; First calculation unit: used to calculate the first ratio and the second ratio; ; ; is the first ratio; is the second ratio; is the average detected value of all the pressure sensors located in the areas on both sides of the pressure rod 4 in the length direction, obtained by the first acquisition unit; is the average detected value of all the pressure sensors located in the areas on both sides of the pressure rod 4 in the length direction, obtained by the second acquisition unit; is the average detected value of all the pressure sensors located in the middle area of the pressure rod 4 in the length direction, obtained by the first acquisition unit; is the average detected value of all the pressure sensors located in the middle area of the pressure rod 4 in the length direction, obtained by the second acquisition unit; The first determination unit: is used to determine that the second sweeper 5 needs to be started when is greater than the first preset ratio; and to determine that the third sweeper 6 needs to be started when is greater than the second preset ratio.

[0038] The initial evaluation module further includes: The second calculation unit: is used to calculate the current target cleaning force of the second sweeper 5 and the current target cleaning force of the third sweeper 6 based on the first calculation unit; ; ; is the current target cleaning force of the second sweeper 5; is the current target cleaning force of the third sweeper 6; is the maximum detected value of all the pressure sensors located in the middle area of the pressure rod 4 in the length direction, obtained by the second acquisition unit; is the average detected value of all the pressure sensors located in the areas on both sides of the pressure rod 4 in the length direction, obtained by the second acquisition unit The second control module: is used to control the second sweeper 5 to work during the process from the current determination by the first determination unit that the second sweeper 5 needs to be started to the next determination by the first determination module, so that the actual cleaning force of the second sweeper 5 on the conveyor belt 2 is the calculated current target cleaning force of the second sweeper 5 when the head of the conveyor belt 2 needs to be cleaned; The third control module: is used to control the third sweeper 6 to work during the process from the current determination by the first determination unit that the third sweeper 6 needs to be started to the next determination by the first determination module, so that the actual cleaning force of the third sweeper 6 on the conveyor belt 2 is the current target cleaning force of the third sweeper 6 when the head of the conveyor belt 2 needs to be cleaned.

[0039] The beneficial effects of the above technical solutions are as follows: Based on the current cleaning effect and the current target cleaning force of the first cleaning device 3, determine the current target cleaning force of the second cleaning device 5 and the current target cleaning force of the third cleaning device 6, so as to ensure the cleaning reliability of the second cleaning device 5 and the third cleaning device 6.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent cleaner for conveyor belt head, characterized in that: It comprises a first-pass cleaner (3), a second-pass cleaner (5), a third-pass cleaner (6), and a flattening rod (4); The first cleaner (3) is arranged outside the conveyor belt (2) at the head roller (1), and the first cleaner (3) is located in the middle area of ​​the conveyor belt (2) in the width direction; The second-pass cleaner (5) is arranged outside the conveyor belt (2) at the head roller (1), and the second-pass cleaner (5) is arranged below the first-pass cleaner (3), and the second-pass cleaner (5) is located at two side areas in the width direction of the conveyor belt (2); The three-pass cleaner (6) is arranged outside the conveyor belt (2) at the head roller (1), and the three-pass cleaner (6) is located below the two-pass cleaner (5). The cleaning range of the three-pass cleaner (6) for the conveyor belt (2) includes the middle area and the two side areas in the width direction of the conveyor belt (2); A flattening rod (4) is arranged on the conveyor belt (2) below a sweeper (3).

2. The intelligent cleaner for conveyor belt head according to claim 1, characterized in that: Two symmetrical pressure sensors (10) are arranged on the surface of the flattening rod (4).

3. The intelligent cleaner for conveyor belt head according to claim 1, characterized in that: Limiters (9) are arranged at both ends of the flattening rod (4).

4. The intelligent cleaner for conveyor belt head according to claim 1, characterized in that: Also includes: Control device: the control device is electrically connected to the first sweeper (3), the second sweeper (5), and the third sweeper (6) respectively; Memory: stores the detection value of the pressure sensor, and the memory is electrically connected to the control device.

5. The intelligent cleaner for conveyor belt head according to claim 4, characterized in that: Also includes: Temperature detection module: used for detecting the surface temperature of bulk materials at a plurality of temperature detection points on the conveyor belt (2); Humidity detection module: used to detect the surface humidity of bulk materials on the conveyor belt (2); Environmental humidity detection module: used to detect the environmental humidity of the conveyor belt (2); Speed ​​sensor: used to detect the conveying speed of the conveyor belt (2); The control device is electrically connected to the temperature detection module, the humidity detection module, the ambient humidity detection module, and the speed sensor respectively.

6. The intelligent cleaner for conveyor belt head according to claim 5, characterized in that: The control device comprises: A first determination module: used to determine a current target cleaning force of a cleaning device (3) based on the temperature detection module, the humidity detection module, the ambient humidity detection module, and the speed sensor detection values ​​within a current time period; The first control module is used to control the operation of a first sweeper (3) when it is necessary to clean the head of the conveyor belt (2) during the process from the first determination module to the next determination, so that the actual cleaning force of the first sweeper (3) on the conveyor belt (2) is the current target cleaning force.

7. The intelligent cleaner for conveyor belt head according to claim 6, characterized in that: When conveying bulk materials containing moisture, the target cleaning force is calculated based on the following formula: ； ； W is the cleaning force adjustment coefficient corresponding to the conveying speed of the conveyor belt (2); It is the average detection value of the humidity detection module in the current time period; is the density of water; is the density of the bulk solids transported on the conveyor belt (2); R is the particle size of the heat dissipating solids transported on the conveyor belt (2); is the surface tension of water at the reference material temperature; is the contact angle of water at the contact interface between the bulk material and the conveyor belt (2); cos is the cosine, B is the average pore radius of the bulk material on the conveyor belt (2); S is the contact area between the first sweeper (3) and the bulk material on the conveyor belt (2); K is the correction coefficient; is the reference material temperature; It is the average detection value of the humidity detection module in the current time period; It is the maximum detection value of the humidity detection module in the current time period; It is the minimum detection value of the humidity detection module in the current time period; is the standard deviation of the detection value of the humidity detection module in the current time period; The relative ambient humidity detected by the ambient humidity detection module during the current time period; The value is 3.

14.

8. The intelligent cleaner for conveyor belt head according to claim 1, characterized in that: A plurality of pressure sensors (10) are arranged at intervals on the pressure rod (4) along its length direction; when each batch of bulk materials is conveyed by the conveyor belt (2), the flow rate of the bulk materials entering the conveyor belt (2) at the upper end of the head roller (1) is the same and the belt speed of the conveyor belt (2) is the same; the intelligent cleaner at the head of the conveyor belt (2) also includes: An initial evaluation module, the initial evaluation module is used to perform a cleaning evaluation before each batch of bulk materials is transported in batches; during the cleaning evaluation process, the actual cleaning force of a cleaning device (3) on the conveyor belt (2) is controlled to be the current target cleaning force corresponding to the current batch of bulk materials; The initial assessment modules include: A first acquisition unit is used for acquiring a pressure sensor detection value when the pressure rod (4) passes through a position close to the head roller (1) and reaches the upper end of the tail roller when the first sweeper (3) is not started; A second acquisition unit is used for acquiring a pressure sensor detection value when the pressure rod (4) reaches the upper end of the tail roller after passing through the first sweeper (3) after only one sweeper (3) is started; A first calculation unit: used for calculating a first ratio and a second ratio; ； ； is the first ratio; is the second ratio; The average detection value of all pressure sensors located on both sides of the pressure rod (4) in the length direction obtained by the first obtaining unit; The average detection value of all pressure sensors located on both sides of the pressure rod (4) in the length direction obtained by the second acquisition unit; is the average detection value of all pressure sensors located in the middle area in the length direction of the pressure rod (4) acquired by the first acquisition unit; The average detection value of all pressure sensors located in the middle area of ​​the pressure rod (4) in the length direction obtained by the second obtaining unit; First determination unit: used when is greater than a first preset ratio, it is determined that the second sweeper (5) needs to be started; when If the ratio is greater than the second preset ratio, it is determined that the three-way cleaner (6) needs to be started.

9. The intelligent cleaner for conveyor belt head according to claim 8, characterized in that: The initial assessment module also includes: A second calculation unit: used for calculating the current target cleaning force of the second-pass cleaner (5) and the current target cleaning force of the third-pass cleaner (6) based on the first calculation unit; ； ； is the current target cleaning force of the second-pass cleaner (5); is the current target cleaning force of the three-way cleaner (6); The maximum detection value of all pressure sensors located in the middle area in the length direction of the pressure rod (4) obtained by the second obtaining unit; The average detection value of all pressure sensors located on both sides of the pressure rod (4) in the length direction obtained by the second acquisition unit; The second control module is used for controlling the second-pass cleaner (5) to work when it is necessary to clean the head of the conveyor belt (2) during the process from the first determination unit determining that the second-pass cleaner (5) needs to be started for the first time to the first determination module determining the next time, so that the actual cleaning force of the second-pass cleaner (5) on the conveyor belt (2) is calculated as the current target cleaning force of the second-pass cleaner (5); The third control module is used to control the three-way cleaner (6) to work when it is necessary to clean the head of the conveyor belt (2) during the period from the first determination unit's current determination that the three-way cleaner (6) needs to be started to the first determination module's next determination, so that the actual cleaning force of the three-way cleaner (6) on the conveyor belt (2) is the current target cleaning force of the three-way cleaner (6).

10. A cleaning method for a conveyor belt head intelligent cleaner according to any one of claims 1 to 9, characterized in that: include: Normally, only one cleaner (3) is used. When the conveyor belt (2) is running, the head roller (1) drives the conveyor belt (2) to run, and the cleaner (3) is used to clean the middle area of ​​the conveyor belt (2) in the width direction. A flattening rod (4) is arranged behind the first sweeper (3). The flattening rod (4) rotates with the conveyor belt (2). The pressure sensor (10) on the flattening rod (4) can monitor the condition of sticky materials on the surface of the conveyor belt (2) and generate a signal according to the position of the sticky area, and selectively put the subsequent sweeper into use. If the materials on both sides of the conveyor belt (2) are more sticky in the width direction, the second sweeper (5) is put into use. If the materials in the middle of the conveyor belt (2) are more sticky in the width direction, the third sweeper (6) is put into use.

Images