A mine dump truck air filter element life monitoring system and method and mine dump truck

Abstract

The application discloses a mine dump truck air filter element life monitoring system, a filter element life monitoring method, an air inlet rough filtration efficiency optimization method and a mine dump truck, and relates to the technical field of mine truck air inlet filtration. The system comprises a filter element independent monitoring assembly, a cyclone pipe modular throttling assembly, a transparent visual dust accumulation assembly and a vehicle-mounted ECU. Each filter element is independently provided with a resistance sensor, four-stage state display is realized through ECU environmental compensation and life calculation, life is accurately monitored, and dust is cleaned as required; the rough filtration efficiency is stabilized in an effective working interval by matching the engine flow through the modular blocked cyclone pipe; the dust accumulation basin is made of transparent PP-GF30 material and is provided with a three-stage early warning scale, so that the amount of dust accumulation can be directly observed to prevent backflow. The application realizes accurate management of filter element life, optimal rough filtration efficiency and visual maintenance, effectively prolongs the life of the filter element, reduces fuel consumption, avoids engine dust accumulation wear, and is suitable for large-tonnage mine dump trucks.

Description

Technical Field

[0001] This invention relates to the field of air intake filtration and dust removal technology for mining dump trucks, specifically to a system for monitoring the lifespan of air filter elements in mining dump trucks, a method for monitoring the lifespan of filter elements, a method for optimizing the efficiency of air intake coarse filtration, and a mining dump truck. Background Technology

[0002] Currently, heavy-duty desert air filters are commonly used in large-tonnage mining dump trucks of 200 tons and above. These air filter products are mostly supplied by foreign manufacturers. The technology is mature and widely used. However, in key aspects such as dust holding capacity, coarse filtration efficiency, filter element life monitoring, and dust removal control, it is impossible to customize and optimize them according to the working conditions, work intensity, and dust environment of domestic mining areas.

[0003] Existing general-purpose air filter products have poor adaptability and low degree of professional customization, making it difficult to achieve optimal performance matching with the engines of large-tonnage mining trucks. Some products sacrifice filtration performance and service life in order to control costs, which can no longer meet the needs of refined cost control and high reliability operation of mining products.

[0004] The existing technology has four major flaws:

[0005] 1) Crude method of monitoring filter life

[0006] The filter life is determined solely by a fixed duration (such as 500 hours), without taking into account the differences in working conditions such as dust concentration, ambient temperature, humidity, altitude, and pressure in different mining areas, nor does it take into account the wear and tear on the filter life caused by dust cleaning operations. This can easily lead to premature filter failure or overuse, resulting in filtration failure and dust ingress into the engine.

[0007] 2) Inappropriate dust removal strategy damages filter element.

[0008] Domestic mining trucks generally adopt a simultaneous cleaning mode for all filter elements. Regardless of the degree of clogging, all main filter elements are cleaned at once, while safety filter elements are strictly prohibited from being cleaned. Each cleaning will cause irreversible impact damage to the filter media, significantly shortening the overall service life of the filter elements.

[0009] 3) There is a serious imbalance between intake efficiency and coarse filtration effect.

[0010] The swirl tube of the standard 29-inch air filter is a universal design and is not optimized for the intake airflow of different engine models. Under actual operating conditions, the coarse filtration efficiency drops significantly with fluctuations in intake airflow, making it impossible to maintain a consistently high filtration efficiency. This affects both the intake air volume and the coarse filtration effect.

[0011] 4) Lack of dust accumulation monitoring makes dust backflow likely.

[0012] Traditional dust collection basins are made of opaque metal, making it impossible to directly observe the amount and state of dust accumulation from the outside. When too much dust accumulates, it can easily backflow, contaminating the filtered clean air and causing premature wear on critical engine components such as cylinders, pistons, and valves, significantly shortening engine life.

[0013] To address the aforementioned technical problems, this invention provides a mining dump truck air filter system that integrates intelligent online monitoring of filter element life, modular throttling of cyclone tubes, transparent and visualized dust accumulation, and precise dust removal control. This system achieves the technical effects of extending filter element life, reducing maintenance costs, stabilizing engine intake air quality, and decreasing failure rate. Summary of the Invention

[0014] This invention aims to overcome the shortcomings of existing air filters for mining dump trucks, such as inaccurate life monitoring, significant damage from dust removal, imbalance between coarse filtration efficiency and air intake, lack of visualization of dust accumulation, and high risk of dust backflow. It provides an air filter system and control method that features accurate monitoring of filter life, on-demand dust removal, stable coarse filtration efficiency, intuitive visualization of dust accumulation status, and compatibility with multiple engine models.

[0015] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0016] A life monitoring system for air filter elements of mining dump trucks includes: an independent monitoring component for filter elements, a modular throttling component with a cyclone tube, an on-board ECU, and an instrument display.

[0017] The filter element independent monitoring component is used to collect the intake resistance of each filter element of the air filter and output the filter element status signal.

[0018] The modular throttling assembly of the cyclone tube is used to block part of the cyclone tube channel according to the engine intake requirements, so that the coarse filtration efficiency is maintained in the optimal operating range of 95%-97%.

[0019] The vehicle-mounted ECU is connected to the filter element independent monitoring component for data processing and lifespan calculation.

[0020] The instrument display is connected to the vehicle ECU signal and is used to display four statuses in a graded manner: filter health, warning, maintenance required, and abnormal.

[0021] Furthermore, the filter element independent monitoring component includes multiple resistance sensors, with each filter element independently configured with at least one resistance sensor; the vehicle ECU is equipped with an environmental compensation algorithm and a lifespan calculation model, which can calculate the remaining lifespan of the filter element based on the collected resistance value and combined with the environmental parameters of the mining area, and classify the filter element status into four levels: healthy, warning, maintenance required, and abnormal, which are displayed through the instrument display.

[0022] Furthermore, when the vehicle ECU detects that the remaining lifespan of the filter element exceeds the normal threshold, it determines that the filter element is damaged or installed abnormally, and outputs a forced maintenance alarm signal.

[0023] Furthermore, the cyclone tube modular throttling component includes: a cyclone tube array and a cyclone tube blocking module; the cyclone tube blocking module blocks a fixed number of cyclone tubes as a group, and by adjusting the number of blocking groups to match the intake flow of different engines, the coarse filtration efficiency is stabilized in the optimal operating range of 95%-97%.

[0024] Furthermore, the airflow path of the air filter system is as follows: external air enters through the air inlet → centrifugal coarse filtration through the cyclone tube → dust falls into the dust accumulation component → airflow is reversed and enters the filter element for fine filtration → purified air flows to the engine.

[0025] Furthermore, the dust accumulation component is a transparent and visual dust accumulation component, used to directly observe the amount of dust accumulation and indicate when to clean the dust.

[0026] Furthermore, the transparent and visual dust collection component is made of PP-GF30 high-strength transparent composite material with a transparency of ≥80%. The shell is equipped with a three-level warning scale, which corresponds to the safe zone, the warning zone, and the forced dust removal zone, respectively. The bottom of the transparent and visual dust collection component is equipped with a dust discharge structure to discharge the accumulated dust and prevent dust backflow.

[0027] Furthermore, the transparent and visual dust accumulation component allows for direct observation of the internal dust accumulation height without disassembly.

[0028] A method for monitoring the lifespan of an air filter element in a mining dump truck includes:

[0029] The intake resistance of each filter element is collected independently and in real time through the filter element independent monitoring component;

[0030] The vehicle ECU combines the collected resistance values ​​with environmental parameters to perform compensation calculations and obtain the remaining lifespan of the filter element.

[0031] Based on the remaining lifespan range, the system outputs health, early warning, maintenance, and abnormality alerts in stages, enabling on-demand cleaning or replacement and avoiding simultaneous cleaning of all filter elements.

[0032] A method for optimizing the intake coarse filtration efficiency of an air filter in a mining dump truck includes:

[0033] Determine the number and proportion of swirl tube plugs based on the rated intake volume requirements of the target engine;

[0034] The corresponding swirl tube channel is sealed by a modular sealing method, so that the air filter intake flow matches the engine's optimal coarse filtration efficiency operating point, and the coarse filtration efficiency is stabilized in the optimal operating range of 95%-97%.

[0035] A mining dump truck is equipped with the mining dump truck air filter element life monitoring system as described above, which is suitable for large-tonnage mining dump trucks of 200 tons or more.

[0036] The beneficial effects of this invention are as follows: Through innovative designs such as precise monitoring of filter cartridge life, modular cyclone tube throttling, transparent and visualized dust accumulation, and graded status early warning, this invention has the following significant advantages compared to existing technologies:

[0037] 1) Filter life monitoring is more precise, and errors are significantly reduced.

[0038] Adopting a one-filter-one-monitor mode, combined with an environmental compensation algorithm, it comprehensively considers factors such as dust, temperature, humidity, and number of cleaning cycles. The calculation error of remaining lifespan is ≤5%, avoiding the waste or failure risk caused by fixed-duration judgment, and extending the overall lifespan of the filter element by 15%~20%.

[0039] 2) Optimized dust removal strategy, significantly reducing filter element damage.

[0040] It enables on-demand cleaning and cleaning of only the main filter element, abandoning the traditional simultaneous cleaning mode of all filter elements, significantly reducing the impact damage of cleaning to the filter media, extending the service life of the filter element by 30%, and reducing the frequency of replacement and maintenance costs.

[0041] 3) Early detection of faults and anomalies to protect the engine.

[0042] It can monitor and identify abnormal conditions such as filter element damage, improper installation, and seal failure in real time, and issue alarm signals in advance to prevent unfiltered air from entering the engine and eliminate engine dust and premature wear faults from the source.

[0043] 4) Perfect balance between intake volume and coarse filtration efficiency

[0044] By using modular swirl tubes for throttling, the intake air flow requirements of different engine models can be precisely matched, ensuring that the coarse filter efficiency remains at the optimal level, improving intake air quality, and reducing engine fuel consumption by 3% to 5%.

[0045] 5) Visualized dust management to completely prevent dust backflow.

[0046] It adopts a transparent PP-GF30 dust collection basin, with a three-level color warning scale, which allows direct observation of the dust accumulation status, improves the timeliness of dust removal by 100%, effectively avoids dust backflow caused by excessive dust accumulation, and ensures the cleanliness of the intake air.

[0047] 6) High adaptability, reducing the cost of whole vehicle customization

[0048] A single air filter unit can be adapted to multiple engine models by replacing the clogging module, eliminating the need to redevelop the air filter housing, thus significantly shortening the development cycle and reducing supporting costs. Attached Figure Description

[0049] Figure 1 A schematic diagram of four filter elements for a 29-inch air filter.

[0050] Figure 2 A schematic diagram of the air filter sensor arrangement;

[0051] Figure 3 This is a schematic diagram showing the quantitative display of filter cartridge life.

[0052] Figure 4 This is a schematic diagram showing the filter cartridge life status;

[0053] Figure 5 Schematic diagram of the coarse filter arrangement of the cyclone tube in a 29-inch air filter;

[0054] Figure 6 A schematic diagram of an air filter for a 29-inch air purifier;

[0055] Figure 7 This is a schematic diagram illustrating the coarse filtration effect of a hydrocyclone tube.

[0056] Figure 8 A graph showing the engine intake airflow and coarse filter efficiency.

[0057] Figure 9 A schematic diagram of the modular blockage state of the cyclone tube;

[0058] Figure 10 This is a schematic diagram of the ash collection basin installation.

[0059] Figure 11 A schematic diagram of the color warning scale for ash collection basins;

[0060] Figure 12 Schematic diagram of air filter structure Figure 1 ;

[0061] Figure 13 Schematic diagram of air filter structure Figure 2 ;

[0062] Figure 14 Here is the logic diagram for the filter life monitoring system;

[0063] Figure 15 This is a schematic diagram of the cyclone tube blocking module structure;

[0064] In the diagram: 100, protective cover; 200, air inlet channel; 300, dust collection basin; 400, duckbill; 500, cyclone tube; 600, main filter element; 700, safety filter element; 800, air outlet pipe; 110, resistance sensor; 900, cyclone tube blockage module. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0066] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0067] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0068] The following description, based on the accompanying drawings and specific embodiments, provides further details:

[0069] This embodiment is based on a 29-inch air filter adapted to a mining dump truck. The mining dump truck is equipped with two sets of air filters, each set having a main filter element 600 and a safety filter element 700. Figure 1 , Figure 6 , Figure 12 , Figure 13 As shown.

[0070] 1. System composition and structural connections

[0071] like Figure 1 , Figure 6 , Figure 12 , Figure 13 As shown, the monitoring system includes: an independent filter element monitoring component, a cyclone tube modular throttling component, a transparent and visual dust accumulation component, an on-board ECU, and an instrument display.

[0072] Filter cartridge independent monitoring component: includes multiple resistance sensors 110, with each filter cartridge independently configured with at least one resistance sensor 110, such as... Figure 2 As shown, the resistance sensor 110 collects the intake resistance signal in real time and transmits it to the vehicle ECU;

[0073] Modular swirl tube throttling assembly: includes: swirl tube array and swirl tube blocking module 900, such as... Figure 5 , Figure 9 ,like Figure 15 As shown, the plug on the cyclone tube blocking module 900 is installed on a row of cyclone tubes 500, and the two sections are fixed with screws to achieve the blocking effect of a row of cyclone tubes. The cyclone tube blocking module 900 blocks a fixed number of cyclone tubes 500 as a group. By adjusting the number of blocking groups to match the engine intake air flow, the coarse filtration efficiency is stabilized in the optimal working range of 95%-97%. This example uses the optimal state of 97% as an example.

[0074] Transparent and visible dust collection components: including: dust collection basin 300, duckbill nozzle 400, such as... Figure 10 , Figure 12 As shown, the ash collection basin 300 is made of PP-GF30 material with 80% transparency, allowing direct observation of the internal ash accumulation level without disassembly or disassembly. Its casing is equipped with a three-level warning scale, such as... Figure 11 As shown, they are respectively:

[0075] Green indicates a safe range of 0% to 30%; no dust removal is required.

[0076] Yellow alert range (30%~70%): Alert issued; timely dust removal recommended.

[0077] The red area represents the 70%~100% forced dust removal zone, where forced dust removal is implemented to prevent dust backflow.

[0078] The bottom is equipped with a dust discharge structure to discharge accumulated dust and prevent backflow. When cleaning, manually open the bottom duckbill 400 and the accumulated dust will be discharged naturally under the action of gravity and airflow. The operation is simple, dust-free, and does not damage the filter element. This test is completed manually.

[0079] The vehicle ECU connects to the resistance sensor 110 to perform data compensation, lifespan calculation, anomaly detection, and signal output. Figure 14 As shown.

[0080] Instrument panel display: Connected to the vehicle's ECU signal, used to display the four-level status of the filter element, such as... Figure 3 , Figure 4 As shown.

[0081] 2. Air filtration airflow path

[0082] like Figure 6, Figure 7 , Figure 12 , Figure 13 As shown, external air enters the air intake channel 200 through the protective cover 100, and dust-laden air enters the outer channel of the cyclone tube 500. Under the action of centrifugal force, the dust is separated and falls into the dust collection basin 300. The gas that has completed the first-stage coarse filtration turns back 180° and flows through the central channel of the cyclone tube 500 to the main filter element 600 and the safety filter element 700 for the second-stage fine filtration. The purified air enters the engine through the exhaust pipe 800.

[0083] 3. Modular plugging parameter setting for cyclone tubes

[0084] like Figure 5 As shown, the coarse filter unit of the 29-inch air filter consists of an array of 260 swirl tubes. Under the standard intake resistance of 2.5 kPa, the maximum intake flow rate of a single air filter is 8000 m³ / h.

[0085] Combination Figure 8 Engine flow-efficiency curves are modularly blocked according to engine model:

[0086] Compatible with 16V4000C23 engine: Single air filter requires a flow rate of 5940m³ / h. By sealing 25% of the cyclone tubes (65 tubes), the working flow rate is stabilized at 6000m³ / h, and the coarse filtration efficiency is stabilized at 97%.

[0087] Compatible with QSK60 engine: The air filter requires a flow rate of 3713m³ / h per unit. By blocking 50% of the cyclone tubes (126 tubes), the working flow rate is stabilized at 4000m³ / h, and the coarse filtration efficiency is stabilized at 97%.

[0088] like Figure 9 As shown, the cyclone tube blocking module 900 adopts a modular blocking structure with 9 cyclone tubes per group, which is convenient to install and replace, and can quickly match the intake requirements of different engines without the need to redevelop the air filter housing.

[0089] 4. Filter life monitoring and calculation logic

[0090] like Figure 1 , Figure 2 As shown, each of the four filter elements in the vehicle is independently equipped with a resistance sensor 110. The resistance sensor 110 collects the intake resistance Px of the corresponding filter element in real time and transmits the signal to the vehicle ECU.

[0091] like Figure 14 As shown, the vehicle ECU has a built-in environmental compensation algorithm and life calculation model. It compensates and corrects the data acquisition resistance based on the dust concentration, environmental pressure, temperature and humidity in the mining area, eliminating the influence of operating condition differences on life determination.

[0092] The formula for calculating remaining lifespan is as follows:

[0093] Remaining lifetime = [1 - (Px - Po) / (Pend - Po)] × 100%

[0094] Where: Px—real-time intake resistance; Po—initial resistance; Pend—life-end resistance threshold.

[0095] 5. Filter cartridge four-stage status display and judgment

[0096] like Figure 3 , Figure 4 As shown, the vehicle ECU classifies the filter's condition into four levels based on its remaining lifespan and outputs this information through the instrument panel display:

[0097] ①State 1 (66%-100%): Three green bars indicate a healthy filter;

[0098] ②State 2 (33%-66%): Two yellow bars indicate that the main filter should be cleaned. After cleaning, the intake resistance data Px should be collected again to verify the effect.

[0099] ③ Status 3 (0-33%): One bar red, it is recommended to replace / clean the main filter. After replacement and cleaning, re-collect the intake resistance data Px to verify the effect;

[0100] ④ Status 4 (>100%): Three red bars indicate a damaged or improperly installed filter. After checking and replacing the filter, re-collect the intake resistance data Px to verify the effect.

[0101] The next stage involves closed-loop feedback, updating the Po / Pend environmental coefficients. This monitoring cycle ends and the next monitoring cycle begins. The lifespan status of the four filter assemblies is displayed on the instrument display, realizing the system function of "one filter, one monitoring" for filter lifespan.

[0102] 6. System Operation and Maintenance Procedures

[0103] Power-on startup: Resistance sensor 110 collects resistance data in real time, such as... Figure 2 , Figure 14 As shown, the ECU continuously calculates the lifespan and drives the instrument panel to display four levels of status, such as... Figure 3 , Figure 4 As shown;

[0104] Coarse filtration efficiency lock: The cyclone tube blockage module 900 is pre-installed according to the engine model, such as... Figure 9 As shown, the air filter operates at a high coarse filtration efficiency of 97% for an extended period.

[0105] Visualized maintenance: The amount of dust accumulation can be intuitively judged through the transparent dust collection basin 300, such as... Figure 10 , Figure 11 As shown, clean the dust promptly according to the three-level scale.

[0106] Abnormal protection: When the ECU detects abnormally high resistance, it immediately determines that the filter element is damaged or improperly installed, and outputs an alarm signal to prevent unfiltered air from entering the engine.

[0107] In the above example, by adjusting the number of sealing groups to match the engine intake airflow, the coarse filter efficiency can also be stabilized at 96%. Other aspects are the same as above and will not be repeated here.

[0108] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0109] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0110] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A system for monitoring the lifespan of air filter elements in mining dump trucks, characterized in that, include: The filter element independent monitoring component is used to collect the intake resistance of each filter element in the air filter and output the filter element status signal. The modular swirl tube throttling assembly is used to block part of the swirl tube passage according to the engine intake requirements, so that the coarse filtration efficiency is maintained in the optimal operating range of 95%-97%. The vehicle-mounted ECU is connected to the filter element independent monitoring component for data processing and lifespan calculation. The instrument panel display is connected to the vehicle's ECU signal and is used to display the filter status in stages.

2. The air filter element life monitoring system for mining dump trucks according to claim 1, characterized in that, The filter cartridge independent monitoring component includes multiple resistance sensors, with each filter cartridge independently configured with at least one resistance sensor; The vehicle-mounted ECU is equipped with an environmental compensation algorithm and a lifespan calculation model. It can calculate the remaining lifespan of the filter element based on the collected resistance value and combined with the environmental parameters of the mining area, and classify the filter element status into four levels: healthy, warning, maintenance required, and abnormal.

3. The air filter element life monitoring system for mining dump trucks according to claim 1, characterized in that, The modular throttling assembly of the cyclone tube includes a cyclone tube array and a cyclone tube blocking module; The cyclone tube blocking module blocks a fixed number of cyclone tubes as a group. By adjusting the number of blocking groups to match the intake flow of different engines, the coarse filtration efficiency is stabilized in the optimal working range of 95%-97%.

4. The air filter element life monitoring system for mining dump trucks according to claim 1, characterized in that, The airflow path of the air filter system is as follows: external air enters through the air inlet → centrifugal coarse filtration through the cyclone tube → dust falls into the dust accumulation component → airflow is reversed and enters the filter element for fine filtration → purified air flows to the engine.

5. The air filter element life monitoring system for mining dump trucks according to claim 4, characterized in that, The dust accumulation component is a transparent and visual dust accumulation component, which is used to directly observe the amount of dust accumulation and indicate when to clean the dust. The transparent and visual dust accumulation component can directly observe the internal dust accumulation height without disassembling it.

6. The air filter element life monitoring system for mining dump trucks according to claim 5, characterized in that, The transparent and visual dust collection component is made of PP-GF30 high-strength transparent composite material with a transparency of ≥80%. The shell is equipped with a three-level warning scale, which corresponds to the safe zone, the warning zone, and the forced dust removal zone, respectively. The bottom of the transparent and visible dust collection component is equipped with a dust discharge structure to discharge accumulated dust and prevent dust backflow.

7. The air filter element life monitoring system for mining dump trucks according to claim 2, characterized in that, When the vehicle ECU detects that the remaining lifespan of the filter element exceeds the normal threshold, it determines that the filter element is damaged or installed abnormally, and outputs a forced maintenance alarm signal.

8. A method for monitoring the lifespan of an air filter element in a mining dump truck, applied to the system described in any one of claims 1-7, characterized in that, include: The air intake resistance of each filter element is collected independently in real time. The collected resistance values ​​are combined with environmental parameters for compensation calculation to obtain the remaining filter life. Based on the remaining lifespan range, the system outputs health, early warning, maintenance, and abnormality alerts in stages, enabling on-demand cleaning or replacement and avoiding simultaneous cleaning of all filter elements.

9. A method for optimizing the intake coarse filtration efficiency of an air filter in a mining dump truck, applied to the system described in any one of claims 1-7, characterized in that, include: Determine the number and proportion of swirl tube plugs based on the rated intake volume requirements of the target engine; The corresponding swirl tube channel is sealed by a modular sealing method, so that the air filter intake flow matches the engine's optimal coarse filtration efficiency operating point, and the coarse filtration efficiency is stabilized in the optimal operating range of 95%-97%.

10. A mining dump truck, characterized in that, It is equipped with a life monitoring system for the air filter element of a mining dump truck as described in any one of claims 1-7.

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