Dedusting structure, dew mining machine and control method

Abstract

The invention provides a dust removal structure, an exposed mining machine and a control method. The dust removal structure comprises a cab and a first filtering assembly, the first filtering assembly communicates with a first exhaust channel, and the first filtering assembly comprises a second air inlet channel, a first containing cavity and a filtering part; the second filtering assembly comprises a second containing cavity, an adsorption cavity, a third air inlet channel and a fourth air inlet channel, the third air inlet channel and the fourth air inlet channel are arranged in a spaced mode, the second containing cavity communicates with the first containing cavity, and the second containing cavity communicates with the first air inlet channel; an adsorption assembly is arranged in the adsorption cavity and is used for adsorbing dust; the detection assembly is arranged on the side, close to the second containing cavity, of the filtering part, and the detection assembly is used for detecting the content of dust in the second containing cavity; the control module is used for controlling switches of the air pressure adjusting assembly and the second filtering assembly. According to the dust removal structure, the technical problem that the dust removal effect of an exposed mining machine is poor in the related technology is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of open-pit mining machines, and in particular to a dust removal structure, an open-pit mining machine and a control method. Background Art

[0002] The working environment of the open-pit coal miner is an open-pit coal mine. The air is rich in dust. The cab is not a completely enclosed space, and the dust in the air can easily enter the cab. It is cold in winter and hot in summer. Working in a relatively closed cab will make people inside feel uncomfortable and cause physiological harm to them. At the same time, the main control parts of the open-pit coal miner are all arranged in the cab. Coal dust enters the cab and deposits on the surface of the equipment, causing equipment failure.

[0003] In the prior art, the dust removal structure used in the cab in a dust-rich environment is high-pressure air dust blowing, which has a poor dust removal effect. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To achieve the above-mentioned object, the present invention proposes a dust removal structure, including a cab, a dust removal assembly is provided on one side of the cab, the dust removal assembly includes a first filter assembly and a second filter assembly which are connected to each other, a first exhaust passage is provided between the first filter assembly and the cab, and a first air inlet passage is provided between the second filter assembly and the cab;

[0006] The first filter assembly includes a first accommodating chamber for primary filtration, the second filter assembly includes a second accommodating chamber for secondary filtration, the first accommodating chamber is connected to the second accommodating chamber, and a filter component is provided between the first accommodating chamber and the second accommodating chamber, the second accommodating chamber is connected to an adsorption chamber, and an adsorption assembly for adsorbing dust is provided in the adsorption chamber;

[0007] The filter component is provided with a dust detection unit for detecting the dust content in the second accommodating chamber and an air volume detection unit for detecting the ventilation volume of the filter component on the side facing the second accommodating chamber, and an air pressure regulating component for pressurized air supply is provided in the second accommodating chamber;

[0008] The first filter assembly, the second filter assembly, the dust detection unit and the air volume detection unit are all electrically connected to a control module.

[0009] The present invention realizes the filtration and adsorption of dust in the cab by setting a two-stage filter assembly, greatly reducing the dust content in the air in the cab, avoiding harm to the people in the cab, and preventing the dust from blowing into the gaps of the equipment in the cab, causing equipment failure. And the micro-positive pressure is adjusted by the control module, and the pressure is accurate and continuous, so that the dust removal effect will not be insufficient due to insufficient positive pressure in the room, and the people in the room will not feel uncomfortable due to excessive positive pressure in the room.

[0010] Optionally, a first valve for controlling the air intake volume is provided on the first air intake channel, and the first valve is electrically connected to the control module.

[0011] Furthermore, the first accommodating chamber is provided with a second air inlet passage connected to the outside, the second air inlet passage is provided with a second valve, and the second valve is electrically connected to the control module.

[0012] Furthermore, a third air inlet channel is provided between the adsorption bin and the second accommodating chamber, the adsorption assembly includes a fourth air inlet channel which is connected to the second accommodating chamber and passes through the side wall of the adsorption bin and bends toward the bottom wall of the adsorption bin, the adsorption bin is provided with adsorption liquid, the liquid level of the adsorption liquid is higher than the height of the terminal pipe mouth of the fourth air inlet channel, a third valve is provided in the third air inlet channel, and a fourth valve is provided in the fourth air inlet channel.

[0013] Furthermore, a fan structure for accelerating the air in the second accommodating cavity to enter the adsorption bin is provided in the fourth air inlet channel.

[0014] Furthermore, the adsorption chamber is provided with a liquid replacement channel for replacing the adsorption liquid.

[0015] Furthermore, the adsorption bin is connected to an air storage component for storing air after the dust is adsorbed.

[0016] Furthermore, the air pressure regulating component includes an air pressure sensor arranged in the cab, and an air flow booster arranged in the first air inlet channel, and the air flow booster and the air pressure sensor are both connected to the control module signal.

[0017] Furthermore, a temperature regulating component is provided in the second accommodating chamber, and the temperature regulating component is connected to the cab so that the temperature in the cab and the second accommodating chamber can be monitored and regulated, and the temperature regulating component is connected to the control module signal.

[0018] The present invention also provides an open-pit mining machine, comprising the dust removal structure as described in any one of the above items, and also comprising an installation platform for installing the dust removal structure.

[0019] The present invention also provides a dust removal structure control method, which is applicable to any of the dust removal structures described above, and the dust removal structure control method comprises:

[0020] Controlling the dust detection unit to detect the dust content in the second accommodating chamber and the air pressure regulating component located in the second accommodating chamber respectively;

[0021] If the dust content of the air in the second accommodating chamber is less than or equal to the preset content threshold, only the first filter component is used for dust removal; if the dust content of the air in the air pressure regulating component is greater than or equal to the preset content threshold, the first filter component and the second filter component are used for dust removal in combination;

[0022] The air pressure in the cab and the adsorption chamber is monitored in real time, and the air pressure in the cab is maintained at a slightly positive pressure environment of 10-20Pa by adjusting the on-off of each valve.

[0023] Furthermore, the method of dust removal using the first filter assembly and the second filter assembly in combination includes: opening the third valve and the fourth valve to allow the air carrying dust to return to the second accommodating chamber after being adsorbed by the adsorption assembly.

[0024] Furthermore, maintaining a slightly positive pressure environment in the cab includes:

[0025] If the air pressure in the cab is less than or equal to the preset air pressure threshold and the air pressure in the cab is less than the air pressure in the adsorption bin, opening the third valve;

[0026] If the air pressure in the cab is less than or equal to the preset air pressure threshold, and the air pressure in the cab is greater than the air pressure in the adsorption bin, then opening the second valve;

[0027] If the air pressure in the cab is greater than the preset air pressure threshold, and the air pressure in the cab is greater than the air pressure in the adsorption bin, the third valve or the fourth valve is opened to allow air to enter the adsorption bin.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0030] Figure 1 A schematic diagram of the overall structure of a dust removal structure according to the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of an adsorption bin and an adsorption component of a dust removal structure according to the present invention;

[0032] Figure 3 It is a structural schematic diagram of a dust removal structure control method according to the present invention.

[0033] Description of reference numerals:

[0034] 1. Cab; 2. Dust removal assembly; 21. First filter assembly; 211. First exhaust channel; 212. First accommodating chamber; 2121. Second air inlet channel; 2122. Second valve; 2123. Air inlet chamber; 2124. Filter chamber; 22. Second filter assembly; 221. First air inlet channel; 2211. First valve; 222. Second accommodating chamber; 3. Filter component; 4. Adsorption chamber; 41. Observation window; 5. Adsorption assembly; 51. Third air inlet channel; 511. The third valve; 52. The fourth air inlet channel; 521. The fourth valve; 522. The fan structure; 53. The adsorption liquid; 54. The liquid exchange channel; 55. The air storage component; 56. The air outlet; 6. The dust detection unit; 7. The air volume detection unit; 8. The air pressure regulating component; 81. The air pressure sensor; 82. The air flow booster; 83. The pressure relief valve; 9. The temperature regulating component; 10. The control module; 11. The air drying component; 111. The air drying unit; 112. The air humidity detection unit. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The present invention provides a dust removal structure, as shown below Figure 1 to Figure 2 Elaborate in detail.

[0037] A dust removal structure includes a cab 1, a dust removal assembly 2 is provided on one side of the cab 1, the dust removal assembly 2 includes a first filter assembly 21 and a second filter assembly 22 which are connected to each other, a first exhaust passage 211 is provided between the first filter assembly 21 and the cab 1, and a first air inlet passage 221 is provided between the second filter assembly 22 and the cab 1; the provision of the secondary filter assembly can achieve multi-stage filtration of air, thereby further enhancing the filtration effect;

[0038] The first filter assembly 21 includes a first accommodating chamber 212 for preliminary filtering, and the second filter assembly 22 includes a second accommodating chamber 222 for secondary filtering. The first accommodating chamber 212 is connected to the second accommodating chamber 222, and a filter component 3 is separated between the first accommodating chamber 212 and the second accommodating chamber 222. The second accommodating chamber 222 is connected to an adsorption bin 4, and an adsorption assembly 5 for adsorbing dust is provided in the adsorption bin 4; the filter component 3 can be a planar object with air permeable filtering effect such as a filter net and a filter plate, thereby achieving preliminary filtering; the setting of the adsorption bin 4 can perform a finer filtering and adsorption operation than the filter component 3 during secondary filtering, thereby completing secondary fine filtering of the air;

[0039] A dust detection unit 6 for detecting the dust content in the second accommodating cavity 222 and an air volume detection unit 7 for detecting the ventilation volume of the filter component 3 are provided on the side of the filter component 3 facing the second accommodating cavity 222;

[0040] The second accommodating chamber 222 is provided with an air pressure regulating assembly 8 for pressurized air supply;

[0041] The air volume detection unit 7 can detect the adsorption degree of the filter component 3 by detecting the ventilation volume of the filter component 3, and the air volume detection unit 7 is connected to the control module 10 by signal. When the air volume value detected by the air volume detection unit 7 is less than the preset value, a signal is sent to the control module 10, and a touch screen with electrical connection or signal connection to the control module 10 is provided in the cab 1, and the information of clearing the filter component 3 is prompted on the touch screen in the cab 1.

[0042] The first filter assembly 21 , the second filter assembly 22 , the dust detection unit 6 , and the air volume detection unit 7 are all electrically connected to the control module 10 .

[0043] The present invention realizes the filtration and adsorption of dust in the cab 1 by setting a two-stage filter assembly, greatly reducing the dust content in the air in the cab 1, avoiding harm to the indoor personnel, and preventing the dust from blowing into the gaps of the equipment in the cab 1, causing equipment failure. And the micro-positive pressure is adjusted by the control module 10, and the pressure is accurate and continuous, so that the dust removal effect will not be insufficient due to insufficient indoor positive pressure, and the indoor personnel will not feel uncomfortable due to excessive indoor positive pressure.

[0044] In some embodiments, an air inlet chamber 2123 and a filter chamber 2124 are connected and separated in the first accommodating chamber 212. The air inlet chamber 2123 is connected to the filter chamber 2124, and the air inlet chamber 2123 is connected to the first exhaust channel 211. The filter component 3 is arranged in the filter chamber 2124, and the filter chamber 2124 is connected to the second accommodating chamber 222. The setting of the air inlet chamber 2123 can provide a buffer environment for the incoming air. When the air containing dust enters the air inlet chamber 2123, it will be attached for the first time, and then it will be filtered by the filter component 3 when entering the filter chamber 2124, thereby reducing the probability that the dust in the air has a high speed and penetrates the filter component 3 when the air is directly sucked into the filter component 3, thereby enhancing the filtering effect.

[0045] In some embodiments, the first air inlet channel 221 is provided with a first valve 2211 for controlling the air intake volume, and the first valve 2211 is electrically connected to the control module 10 to facilitate controlling the air intake volume in the first air inlet channel 221 .

[0046] In some embodiments, the first accommodating chamber 212 is provided with a second air inlet channel 2121 that is connected to the outside. When performing air conditioning, the second air inlet channel 2121 can play a role in supplying air to adjust the air pressure in the first accommodating chamber 212, which is convenient for the staff to control the air pressure in the first accommodating chamber 212. The second air inlet channel 2121 is provided with a second valve 2122, and the second valve 2122 is electrically connected to the control module 10. It is convenient to control the air intake volume in the second air inlet channel 2121.

[0047] In some embodiments, a third air inlet channel 51 is provided between the adsorption bin 4 and the second accommodating chamber 222, the adsorption assembly 5 includes a fourth air inlet channel 52 which is connected to the second accommodating chamber 222 and passes through the side wall of the adsorption bin 4 and bends toward the inner bottom wall of the adsorption bin 4, an adsorption liquid 53 is provided in the adsorption bin 4, the liquid level of the adsorption liquid 53 is higher than the height of the terminal pipe mouth of the fourth air inlet channel 52, a third valve 511 is provided in the third air inlet channel 51, and a fourth valve 521 is provided in the fourth air inlet channel 52.

[0048] With the above arrangement, the air in the cab 1 enters the first filter assembly 21 through the first exhaust channel 211, and the detection assembly detects the quality of the air filtered by the filter component 3. If the air quality still does not meet the standard, the control module 10 controls the air that does not meet the standard to continue to enter the adsorption bin 4 through the third air inlet channel 51, and becomes clean air after being adsorbed by the adsorption assembly 5; the clean air enters the second accommodating chamber 222 through the fourth air inlet channel 52, and then returns to the cab 1 through the first air inlet channel 221. Through the cooperation of the first filter assembly 21 and the second filter assembly 22, different filtering methods are adopted for air of different cleanliness levels, which effectively improves the dust removal effect of the dust removal equipment and solves the technical problem of poor dust removal effect of open-pit mining machines in related technologies.

[0049] In some embodiments, a fan structure 522 is provided in the fourth air inlet channel 52 for accelerating the air in the second accommodating chamber 222 to enter the adsorption chamber 4. The fan structure 522 is electrically connected to the control module 10, and the staff can control the wind speed of the fan structure 522 through the control module 10. When the air filtered by the first filter component 21 still does not meet the standard after detection, the fan structure 522 is turned on to accelerate the air in the second accommodating chamber 222 to enter the fourth air inlet channel 52, and enter the adsorption component 5 through the fourth air inlet channel 52 to complete the secondary filtration of the air.

[0050] In some embodiments, the adsorption chamber 4 is provided with a liquid replacement channel 54 for replacing the adsorption liquid 53. The provision of the liquid replacement channel 54 can facilitate the staff to remove the saturated adsorption liquid 53 and replace it with new adsorption liquid 53 after the adsorption liquid 53 in the adsorption chamber 4 reaches saturation.

[0051] Furthermore, in order to facilitate the observation of the adsorption status of the adsorption liquid 53, an observation window 41 is provided on the adsorption bin 4 for observing the liquid level in the adsorption bin 4. To ensure that the second filter component 22 can work normally, the liquid level of the adsorption component 5 in the adsorption bin 4 is lower than the port of the third air inlet channel 51 and higher than the port of the fourth air inlet channel 52.

[0052] In some embodiments, the adsorption bin 4 is connected to an air storage assembly 55 for storing air after the dust is adsorbed. The air storage assembly 55 is used to store filtered air. The air that meets the standards after filtering can be stored in the air storage assembly 55. When the air pressure in the cab 1 needs to be adjusted, the air pressure in the cab 1 can be assisted by the air storage assembly 55. In another embodiment, the air storage assembly 55 is also provided with an air outlet 56. When the air outlet 56 is opened, compressed pure high-pressure air can be obtained, which can be used to clean the replaced filter component 3.

[0053] In some embodiments, the air pressure regulating assembly 8 includes an air pressure sensor 81 disposed in the cab 1 and an air flow booster 82 disposed in the first air inlet channel 221 . The air flow booster 82 and the air pressure sensor 81 are both signal-connected to the control module 10 .

[0054] The airflow booster 82 is used to increase the air flow into the cab 1 to form a slightly positive pressure environment in the cab 1; the air pressure sensor 81 is used to detect the air pressure in the cab 1, and the air pressure sensor 81 is connected to the control module 10 by signal, so as to monitor the air pressure in the cab 1, and adjust various components through the control module 10 to complete the air pressure regulation in the cab 1. In other embodiments, when it is necessary to supply air to the cab 1 through the air storage assembly 55 to maintain the air pressure in the cab 1 to meet the standard, the air storage assembly 55 is also provided with an air pressure sensor 81 (not shown in the figure) for testing the air pressure in the air storage assembly 55.

[0055] When the air pressure sensor 81 detects that the air pressure in the cab 1 has not reached the micro-positive pressure (10-20Pa) environment, and the air pressure in the air storage assembly 55 is insufficient to maintain the micro-positive pressure environment of the cab 1, the second valve 2122 is opened, and the air pressure regulating assembly 8 is opened at the same time, so that a large amount of air enters the cab 1 after filtering and dust removal, and the cab 1 is pressurized to maintain the air pressure in the cab 1 within the range of 10-20Pa. Under the premise of not causing harm to the staff in the cab 1, the air outside the cab 1 is prevented from entering the cab 1 and causing the dust in the cab 1 to exceed the standard.

[0056] In addition, a pressure relief valve 83 for pressure relief is also provided on the second accommodating chamber 222 . When the air pressure in the cab 1 is too high, the air in the cab 1 is discharged by opening the pressure relief valve 83 .

[0057] In some embodiments, a temperature regulating component 9 is provided in the second accommodating chamber 222, and the temperature regulating component 9 is connected to the cab 1 so that the temperatures in the cab 1 and the second accommodating chamber 222 are monitored and regulated, and the temperature regulating component 9 is connected to the control module 10 by signals. The clean air is regulated by the temperature regulating component 9, reaches a suitable temperature, and then enters the cab 1, so that a good working environment can be provided for the staff in the cab 1 without installing an air conditioner separately. The temperature regulating component 9 includes a heating module and a cooling module to adjust the temperature of the air in the second accommodating chamber 222 that is about to enter the cab 1. The temperature regulating component 9 can be set upstream or downstream of the air pressure regulating component 8 along the air flow direction.

[0058] In some embodiments, a touch screen connected to the control module 10 signal is provided in the cab 1, which is used to display the air pressure conditions, air quality and warnings and notifications issued by the control module 10 in the cab 1, and control instructions can be sent to the control module 10 through the touch screen to control various electronic control components in the first filter component 21, the second filter component 22, the air pressure regulating component 8, etc.

[0059] In some embodiments, an air drying component 11 is provided in the cab 1 for adjusting the air humidity in the cab 1. The drying component includes an air humidity detection unit 112 and an air drying unit 111. The air humidity detection unit 112 and the air drying unit 111 are both connected to the control module 10 by signal. An air humidity threshold range standard is provided in the air humidity detection unit 112. When the humidity in the cab 1 is too high and exceeds the threshold range standard, the control module 10 receives the signal feedback from the air humidity detection unit 112 and sends a work instruction to the air drying unit 111. The air drying unit 111 starts working and dries the air in the cab 1 to reduce the air humidity in the cab 1 to within the air humidity threshold range, thereby completing the humidity reduction operation. When the air humidity in the cab 1 reaches the control humidity threshold range, the control module 10 controls the air drying unit 111 to stop working.

[0060] The present invention also provides an open-pit mining machine, comprising any one of the dust removal structures described above, and further comprising an installation platform for installing the dust removal structure.

[0061] The working environment of the open-pit coal mining machine in this embodiment is an open-pit coal mine, where dust is enriched in the air. The cab 1 is not a completely enclosed space, and dust in the air can easily enter the cab 1, causing physiological harm to the people inside. At the same time, the main control parts of the open-pit coal mining machine are arranged in the cab 1. Coal dust enters the cab 1 and is deposited on the surface of the equipment, causing equipment failure. Therefore, a single dust removal method can no longer meet the dust removal needs. The dust removal structure of this embodiment is adopted, and different filtering methods are adopted for air of different cleanliness levels through the cooperation of the first filter component 21 and the second filter component 22, which effectively improves the dust removal effect of the dust removal equipment and solves the technical problem of poor dust removal effect of the open-pit coal mining machine in the related art.

[0062] The present invention also provides a dust removal structure control method, referring to Figure 3 The dust removal structure is described in detail and is applicable to any one of the above-mentioned dust removal structures. The dust removal structure control method includes:

[0063] S1. A dust detection unit is provided in the second accommodating chamber 222 and the air pressure regulating assembly 8, and the dust detection unit is controlled to detect the dust content in the second accommodating chamber 222 and the air pressure regulating assembly 8 located in the second accommodating chamber 222 respectively;

[0064] S2. If the dust detection unit 6 detects that the dust content of the air in the second accommodating chamber 222 is less than or equal to the preset content threshold, only the first filter component 21 is used for dust removal; if the dust detection component detects that the dust content of the air in the air pressure regulating component 8 is greater than or equal to the preset content threshold, the first filter component 21 and the second filter component 22 are used for dust removal in combination;

[0065] S3. Monitor the air pressure in the cab 1 and the adsorption chamber 4 in real time, and ensure that the air pressure in the cab 1 is maintained at a slightly positive pressure environment of 10-20 Pa by adjusting the opening and closing of each valve.

[0066] The dust content of the air in the second accommodating chamber 222 is detected. If the filtering effect of the first filter component 21 alone is not ideal, the second filter component 22 is started at the same time for auxiliary filtering until the dust content of the air in the second accommodating chamber 222 reaches a standard value that does not affect health, so that the air entering the cab 1 will not affect the health of the staff.

[0067] In some embodiments, the dust removal method using the first filter component 21 and the second filter component 22 in combination includes: opening the third valve 511 and the fourth valve 521 to allow the air carrying dust to return to the second accommodating chamber 222 after being adsorbed by the adsorption component 5.

[0068] Specifically, when the dust removal system starts working, the first valve 2211 is first opened, and the second valve 2122, the third valve 511 and the fourth valve 521 are closed. The air that enters the second accommodating chamber 222 after being filtered by the first filter component 21 is tested. If the test result shows that the air quality meets the standard, the above-mentioned operating state is maintained; if the test result does not meet the standard, the third valve 511 and the fourth valve 521 are opened, and the fan structure 522 in the fourth air inlet channel 52 is opened at the same time, so that the substandard air enters the adsorption component 5, and after being adsorbed by the adsorption component 5, enters the adsorption bin 4, and then returns to the second accommodating chamber 222 through the third valve 511, until the air quality test result in the second accommodating chamber 222 meets the standard, and the third valve 511 and the fourth valve 521 are closed.

[0069] If the dust removal mode of the combination of the first filter component 21 and the second filter component 22 lasts for more than 5 minutes and the air quality in the second accommodating chamber 222 still does not meet the safety standard, the air volume sensor is turned on to detect the blockage of the filter component 3. If blockage is detected in the filter component 3, a new filter component 3 needs to be replaced.

[0070] In some embodiments, when maintaining a slightly positive pressure environment in the cab 1, an air pressure sensor 81 for detecting the air pressure in the current environment is provided in the cab 1 and the air storage assembly 55, including:

[0071] If the air pressure in the cab 1 is less than or equal to the preset air pressure threshold, and the air pressure in the cab 1 is less than the air pressure in the adsorption bin 4, the third valve 511 is opened;

[0072] If the air pressure in the cab 1 is less than or equal to the preset air pressure threshold, and the air pressure in the cab 1 is greater than the air pressure in the adsorption bin 4, the second valve 2122 is opened;

[0073] If the air pressure in the cab 1 is greater than the preset air pressure threshold, and the air pressure in the cab 1 is greater than the air pressure in the adsorption bin 4 , the third valve 511 or the fourth valve 521 is opened to allow air to enter the adsorption bin 4 .

[0074] The air pressure sensor 81 in the cab 1 detects the air pressure in the cab 1. If the air pressure in the cab 1 is lower than 10 Pa, the cab 1 needs to be pressurized;

[0075] The specific pressure relief and pressure increase methods are as follows:

[0076] When the air pressure in the cab 1 is greater than the air pressure in the air storage assembly 55, only the second valve 2122 is opened to filter the outside air and add it into the cab 1 until the air pressure in the cab 1 is 10-20Pa, thus completing the pressurization.

[0077] When the air pressure in the cab 1 is lower than the air pressure in the air storage assembly 55, the third valve 511 is opened first, and the air in the air storage assembly 55 is used to pressurize the cab 1 until the air pressure in the cab 1 is 10-20 Pa, and the pressurization is completed;

[0078] When the clean air in the air storage assembly 55 is not sufficient to form a slightly positive pressure environment in the cab 1, that is, when the air pressure in the cab 1 is greater than or equal to the air pressure in the air storage assembly 55, and the air pressure in the cab 1 has not reached 10Pa, the third valve 511 is closed, and the second valve 2122 is opened to filter the outside air and replenish it into the cab 1 until the air pressure in the cab 1 is 10-20Pa, thereby completing the pressurization.

[0079] When the air pressure in the cab 1 is greater than 20Pa, the cab 1 needs to be depressurized;

[0080] Specifically, when the air pressure in the cab 1 is greater than the air pressure in the air storage assembly 55, the third valve 511 is opened to store the air in the cab 1 in the air storage assembly 55 until the air pressure in the cab 1 is 10-20Pa, and the pressure relief is completed;

[0081] When the air pressure in the cab 1 is less than or equal to that in the air storage assembly 55, the pressure relief valve 83 is directly opened to make the air pressure in the cab 1 reach 10-20 Pa, thereby completing the pressure relief.

[0082] In another embodiment, the temperature in the cab 1 is synchronously adjusted, and the default range of the perceived comfort temperature is 24-27 degrees. The driver can also preset the perceived comfort temperature through the touch screen, and the preset temperature can be set according to the driver's personal body sensation. A temperature sensor is set in the cab 1. When the temperature in the cab 1 is not within the range, the temperature adjustment component 9 is turned on to adjust the temperature of the air entering the second accommodating chamber 222 and about to enter the cab 1. When the temperature of the cab 1 is too low, the heating module is turned on to heat the filtered air so that the temperature in the cab 1 rises smoothly to within the preset perceived comfort temperature range. When the temperature in the cab 1 is too high, the cooling module is turned on to cool the filtered air so that the temperature in the cab 1 drops smoothly to within the preset perceived comfort temperature range.

[0083] In some embodiments, when the air humidity in the cab 1 is insufficient, the air humidity can be increased by opening the second filter assembly 22. When the second filter assembly 22 is opened, the air in the second accommodating chamber 222 enters the adsorption bin 4. After being filtered by the adsorption liquid 53, the air entering the adsorption bin 4 takes away the moisture in the adsorption liquid 53 when it emerges from the adsorption liquid 53, thereby humidifying the air. The humidified air enters the second accommodating chamber 222 along the third air inlet channel 51 and finally enters the cab 1, thereby adjusting the humidity in the cab 1.

[0084] In other embodiments, in order to avoid excessive humidity in the cab 1, the air humidity detection unit 112 in the air drying component 11 is controlled to detect the air humidity in the cab 1 in real time. When the humidity in the cab 1 is too high and exceeds the threshold range standard, the control module 10 receives the signal feedback from the air humidity detection unit 112 and sends a work instruction to the air drying unit 111. The air drying unit 111 starts to work and dries the air in the cab 1 to reduce the air humidity in the cab 1 to within the air humidity threshold range, thereby completing the humidity reduction operation. When the air humidity in the cab 1 reaches the control humidity threshold range, the control module 10 controls the air drying unit 111 to stop working.

[0085] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0090] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A dust removal structure, characterized in that: A driving cab is included, a dust removal assembly is provided on one side of the driving cab, the dust removal assembly includes a first filter assembly and a second filter assembly which are connected to each other, a first exhaust passage is provided between the first filter assembly and the driving cab, and a first air inlet passage is provided between the second filter assembly and the driving cab; The first filter assembly includes a first accommodating chamber for primary filtration, the second filter assembly includes a second accommodating chamber for secondary filtration, the first accommodating chamber is connected to the second accommodating chamber, and a filter component is provided between the first accommodating chamber and the second accommodating chamber, the second accommodating chamber is connected to an adsorption chamber, and an adsorption assembly for adsorbing dust is provided in the adsorption chamber; The filter component is provided with a dust detection unit for detecting the dust content in the second accommodating chamber and an air volume detection unit for detecting the ventilation volume of the filter component on the side facing the second accommodating chamber, and an air pressure regulating component for pressurized air supply is provided in the second accommodating chamber; The first filter assembly, the second filter assembly, the dust detection unit and the air volume detection unit are all electrically connected to a control module.

2. A dust removal structure according to claim 1, characterized in that: The first air inlet channel is provided with a first valve for controlling the air inlet volume, and the first valve is electrically connected to the control module.

3. A dust removal structure according to claim 1, characterized in that: The first accommodating chamber is provided with a second air inlet passage communicating with the outside, the second air inlet passage is provided with a second valve, and the second valve is electrically connected to the control module.

4. A dust removal structure according to claim 1, characterized in that: A third air inlet channel is provided between the adsorption bin and the second accommodating chamber, the adsorption assembly includes a fourth air inlet channel which is connected to the second accommodating chamber and passes through the side wall of the adsorption bin and bends toward the bottom wall of the adsorption bin. Adsorption liquid is provided in the adsorption bin, the liquid level of the adsorption liquid is higher than the height of the terminal pipe mouth of the fourth air inlet channel, a third valve is provided in the third air inlet channel, and a fourth valve is provided in the fourth air inlet channel.

5. A dust removal structure according to claim 4, characterized in that: The fourth air inlet channel is provided with a fan structure for accelerating the air in the second accommodating cavity to enter the adsorption bin.

6. A dust removal structure according to claim 4, characterized in that: The adsorption chamber is provided with a liquid replacement channel for replacing the adsorption liquid.

7. A dust removal structure according to claim 4, characterized in that: The adsorption bin is connected to an air storage component for storing air after the dust is adsorbed.

8. A dust removal structure according to claim 1, characterized in that: The air pressure regulating assembly includes an air pressure sensor disposed in the cab and an air flow booster disposed in the first air inlet passage. The air flow booster and the air pressure sensor are both connected to the control module signal.

9. A dust removal structure according to claim 1, characterized in that: A temperature regulating component is provided in the second accommodating chamber, and the temperature regulating component is connected to the cab so that the temperatures in the cab and the second accommodating chamber can be monitored and regulated. The temperature regulating component is connected to the control module signal.

10. An open-pit mining machine, characterized in that: It comprises the dust removal structure as described in any one of claims 1 to 9, and also comprises a mounting platform for mounting the dust removal structure.

11. A dust removal structure control method, applicable to the dust removal structure according to any one of claims 1 to 9, characterized in that: The dust removal structure control method comprises: Controlling the dust detection unit to detect the dust content in the second accommodating chamber and the air pressure regulating component located in the second accommodating chamber respectively; If the dust content of the air in the second accommodating chamber is less than or equal to the preset content threshold, only the first filter component is used for dust removal; if the dust content of the air in the air pressure regulating component is greater than or equal to the preset content threshold, the first filter component and the second filter component are used for dust removal in combination; The air pressure in the cab and the adsorption chamber is monitored in real time, and the air pressure in the cab is maintained at a slightly positive pressure environment of 10-20Pa by adjusting the on-off of each valve.

12. A dust removal structure control method according to claim 11, characterized in that: The method for dust removal using the first filter assembly and the second filter assembly in combination includes: opening the third valve and the fourth valve to allow the air carrying dust to return to the second accommodating chamber after being adsorbed by the adsorption assembly.

13. A dust removal structure control method according to claim 11, characterized in that: Maintaining a slightly positive pressure environment in the cab includes: If the air pressure in the cab is less than or equal to the preset air pressure threshold and the air pressure in the cab is less than the air pressure in the adsorption bin, opening the third valve; If the air pressure in the cab is less than or equal to the preset air pressure threshold, and the air pressure in the cab is greater than the air pressure in the adsorption bin, then opening the second valve; If the air pressure in the cab is greater than the preset air pressure threshold, and the air pressure in the cab is greater than the air pressure in the adsorption bin, the third valve or the fourth valve is opened to allow air to enter the adsorption bin.

Images