A coal mine underground air compressor and its remote centralized control system

Abstract

The present invention discloses an underground air compressor in a coal mine and its remote centralized control system, including an air compressor main body, the air compressor main body is connected with auxiliary parts for assisting the operation in the underground coal mine, the auxiliary parts include: a filter element, which is installed at the air suction end on the front side of the air compressor main body for gas filtering, the filter element includes two groups of shells arranged at the air suction end on the front side of the air compressor main body, the front side of the shell is rotatably connected with a filter plate for gas filtering, and the front side of the shell is installed with a scraper. The present invention relates to the field of remote control technology for air compressors. In the underground air compressor in a coal mine and its remote centralized control system, during the air suction process of the air compressor main body, the filter plate filters the solid impurities in the gas, and when the filter plate needs to be cleaned, the motor drives the filter plate to rotate through the bevel gear assembly, so that the scraper scrapes and cleans the outer surface of the filter plate, thereby reducing the blockage caused by the solid impurities outside the mine adhering to the outer side of the filter plate.

Description

Technical Field

[0001] The invention relates to the technical field of remote control of air compressors, and in particular to an underground air compressor in a coal mine and a remote centralized control system thereof. Background Art

[0002] The operation of underground air compressors requires on-site care by dedicated personnel, and the care environment of underground air compressors is poor. For this reason, a corresponding remote control system is needed to control and process them. Referring to the remote centralized control system of coal mine underground air compressors with authorization announcement number CN113982693A, it includes an underground information acquisition module, an underground control module, a video monitoring module, and a ground human-computer interaction module: the underground information acquisition module and the video monitoring module can realize unmanned operation underground while ensuring safety. Ground personnel can operate multiple air compressor equipment and realize remote air compressor monitoring at the same time, which is convenient for outgoing supervisors to grasp the status of the air compressor at any time and facilitate unified management. As described in the above patent, when the existing coal mine underground air compressors and their remote centralized control systems are used, most of the devices find it difficult to strip and clear the solid impurities retained on the outside of the filter and in the filter holes on the exhaust side of the device, which affects the operation of the exhaust end of the air compressor and requires the user to perform additional cleaning, thereby increasing safety hazards. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an underground coal mine air compressor and a remote centralized control system thereof, which solves the problems of poor self-cleaning effect at the exhaust filter end of the device, affecting the efficiency of the device, and the like.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an air compressor for underground coal mines, comprising an air compressor body, the air compressor body is connected with auxiliary parts for assisting the operation of underground coal mines, the auxiliary parts comprising:

[0005] A filter element is installed at the air suction end on the front side of the air compressor body for gas filtering. The filter element includes two groups of shells arranged at the air suction end on the front side of the air compressor body. A filter plate for gas filtering is rotatably connected to the front side of the shell. A scraper for stripping impurities retained on the front side of the filter plate is installed on the front side of the shell. A motor for driving the filter plate to rotate is provided on the top of the shell. Both groups of the shells are connected to a back-blowing element for unblocking the filter plate. The back-blowing element includes two groups of jet strips installed on the inner side of the shell.

[0006] Preferably, the filter element also includes a bevel gear assembly driven by a motor and connected to the filter plate, the active bevel gear in the bevel gear assembly is coaxially fixedly connected to the output end of the motor, the middle part of the filter plate is coaxially fixedly connected to the driven bevel gear assembly in the bevel gear assembly, and a humidity sensor, a temperature sensor, and a gas concentration sensor for detecting the humidity, temperature, and concentration of the gas extracted by the air compressor body are respectively installed in the shell, and the scraper is in contact with the front side of the filter plate.

[0007] Preferably, the back-blowing component also includes an exhaust pipe installed on the exhaust side of the air compressor body, a first three-way valve for reversing the exhaust gas is provided at the bottom of the exhaust pipe, a first conduit is installed on the front side of the first three-way valve, a second three-way valve for switching the air supply of two groups of jet strips is installed on the front side of the air compressor body, a group of second conduits fixedly connected to the jet strips are respectively provided on both sides of the second three-way valve, a number of jet holes are provided on the front side of the jet strip near the filter plate side, a third three-way valve for switching the exhaust direction is provided near the two groups of shell bodies inside the air compressor body, and the two groups of shells are respectively connected to the two sides of the third three-way valve.

[0008] Preferably, a filter screen is provided at the rear side of the first three-way valve and is communicated with the outside of the air compressor body; the filter plate is a circular plate and a convex ring is provided on the edge thereof and is rotatably connected to the inner side of the shell.

[0009] The present invention also discloses a remote centralized control system for an underground air compressor in a coal mine, comprising a control module, wherein the control module is connected to an exhaust module used for exhaust treatment in the coal mine, wherein the exhaust module is respectively connected to a filter module for extracting gas filtration and a monitoring module for monitoring, wherein the exhaust module is also connected to a cleaning module for cleaning the filter module, wherein the monitoring module is connected to an alarm module for alarming, wherein the control module is respectively connected to the monitoring module and the alarm module, wherein the control module is also connected to a display module for data and image observation.

[0010] Preferably, the monitoring module includes a video monitoring module, a temperature monitoring module, a humidity monitoring module, and a gas concentration monitoring module. The video monitoring module is installed underground in a coal mine to monitor the outside of the air compressor. The temperature monitoring module, humidity monitoring module, and gas concentration monitoring module are respectively installed at the filter module end to monitor the temperature, humidity, and concentration of the gas extracted by the air compressor.

[0011] Preferably, the cleaning module includes a scraping module for stripping impurities retained on the outer surface of the filter module, and the cleaning module also includes a dredging module for clearing impurities blocking the filter end of the filter module. The scraping module and the dredging module are both connected to the vacuum module.

[0012] Preferably, the cleaning module further comprises a switching module for switching the suction direction of the suction end of the suction module.

[0013] Beneficial Effects

[0014] The present invention provides an underground air compressor for a coal mine and a remote centralized control system thereof. Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The coal mine underground air compressor and its remote centralized control system are provided with filter elements and back-blowing elements in the system. During the air pumping process of the air compressor body, the filter plate filters the solid impurities in the gas. When the filter plate needs to be cleaned, the motor drives the filter plate to rotate through the bevel gear assembly, so that the scraper scrapes and cleans the outer surface of the filter plate, thereby reducing the blockage caused by the solid impurities outside the mine adhering to the outer side of the filter plate. When the filter holes in the filter plate need to be unblocked, the air pumping end of the air compressor body switches the air pumping position through the third three-way valve, so that the air compressor body is pumped through another set of shells and filter plates, and the first three-way valve is reversed. The gas is back-blown through the first conduit, the second three-way valve, the second conduit, and the jet strip to the filter holes in the rotating filter plate, so that the impurities retained in the filter holes are pushed out, thereby avoiding the blockage inside the filter plate affecting the subsequent air pumping function of the air compressor body, and there is no need for the user to clean on site, thereby reducing safety hazards.

[0016] (2) The coal mine underground air compressor and its remote centralized control system are configured with sensors in the filter element and humidity sensors, temperature sensors, and gas concentration sensors on the inner side of the housing, so that the humidity sensors, temperature sensors, and gas concentration sensors can accurately detect the state of the gas pumped by the air compressor body, and can prevent the falling grinding ore in the coal mine from impacting the corresponding detection sensors, thereby increasing the service life of the sensors and reducing the impact of external impact on sensor detection.

[0017] (3) The coal mine underground air compressor and its remote centralized control system are provided with a filter screen and a convex ring in the system. The filter screen protects the exhaust end at the rear side of the first three-way valve, while the convex ring prevents the filter plate from falling off and limits the position, thereby preventing the filter plate from falling off from the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 is an enlarged cross-sectional view of the filter element of the present invention;

[0020] Figure 3 It is a partial enlarged view of the backflush component of the present invention;

[0021] Figure 4 is a structural diagram of the system of the present invention;

[0022] Figure 5 It is a structural diagram of the monitoring module of the present invention;

[0023] Figure 6 This is a structural diagram of the cleaning module of the present invention;

[0024] Figure 7 It is the main flow chart of the present invention.

[0025] In the figure: 1. air compressor body; 2. filter element; 21. housing; 22. filter plate; 23. scraper; 24. motor; 25. bevel gear assembly; 26. humidity sensor; 27. temperature sensor; 28. backflush element; 281. exhaust pipe; 282. first three-way valve; 283. first conduit; 284. second three-way valve; 285. second conduit; 286. jet strip; 29. ​​gas concentration sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] refer to Figure 1-7 , the present invention provides the following three technical solutions:

[0028] The first embodiment: an underground air compressor in a coal mine, comprising an air compressor body 1, the air compressor body 1 is connected with auxiliary parts for assisting the operation in the coal mine, the auxiliary parts comprising: a filter 2, installed at the front suction end of the air compressor body 1 for gas filtering, the filter 2 comprising two groups of shells 21 arranged at the front suction end of the air compressor body 1, a filter plate 22 for gas filtering is rotatably connected to the front side of the shell 21, a plurality of filter holes are arranged on the surface of the filter plate 22, a scraper 23 for stripping impurities retained on the front side of the filter plate 22 is installed at the front side of the shell 21, a motor 24 for driving the filter plate 22 to rotate is arranged at the top of the shell 21, and the two groups of shells 21 are connected with a backflush 28 for dredging the filter plate 22, and the backflush 28 comprises two groups of jet strips 286 installed on the inner side of the shell 21;

[0029] The filter element 2 also includes a bevel gear assembly 25 driven by the motor 24 and connected to the filter plate 22. The active bevel gear in the bevel gear assembly 25 is coaxially fixedly connected to the output end of the motor 24. The middle part of the filter plate 22 is coaxially fixedly connected to the driven bevel gear assembly in the bevel gear assembly 25. A support frame is provided on the inner side of the housing 21 near the outer side of the bevel gear assembly 25. A movable groove is provided on the side of the support frame near the bevel gear assembly 25. The backflush element 28 also includes an exhaust pipe 281 installed on the exhaust side of the air compressor body 1. The bottom of the exhaust pipe 281 is provided with a A first three-way valve 282, a first conduit 283 is installed on the front side of the first three-way valve 282, a second three-way valve 284 for switching the air supply of two sets of jet strips 286 is installed on the front side of the air compressor body 1, a set of second conduits 285 fixedly connected to the jet strips 286 are respectively provided on both sides of the second three-way valve 284, a plurality of jet holes are provided on the front side of the jet strips 286 near the filter plate 22, a third three-way valve for switching the air extraction direction is provided near the two sets of shells 21 inside the air compressor body 1, and the two sets of shells 21 are respectively connected to the two sides of the third three-way valve;

[0030] During the air extraction process of the air compressor body 1, the filter plate 22 filters the solid impurities in the gas. When the filter plate 22 needs to be cleaned, the motor 24 drives the filter plate 22 to rotate through the bevel gear assembly 25, and the scraper 23 scrapes and cleans the outer surface of the filter plate 22. When the filter holes in the filter plate 22 need to be unblocked, the air extraction end of the air compressor body 1 switches the air extraction position through the third three-way valve, so that the air compressor body 1 extracts air through another set of shells 21 and filter plates 22, and the first three-way valve 282 is reversed. The gas passes through the first conduit 283, the second three-way valve 284, the second conduit 285, and the jet strip 286 to back-blow the filter holes in the rotating filter plate 22 to push out the impurities retained in the filter holes.

[0031] The second implementation mode is mainly different from the first implementation mode in that:

[0032] A humidity sensor 26, a temperature sensor 27, and a gas concentration sensor 29 for detecting the humidity, temperature, and concentration of the gas extracted by the air compressor body 1 are installed in the housing 21, respectively. The scraper 23 is attached to the front side of the filter plate 22. By arranging the humidity sensor 26, the temperature sensor 27, and the gas concentration sensor 29 inside the housing 21, it is convenient for the humidity sensor 26, the temperature sensor 27, and the gas concentration sensor 29 to accurately detect the state of the gas extracted by the air compressor body 1, and it is equipped with sensors for preventing the falling grinding ore from hitting the corresponding detection in the coal mine.

[0033] The third implementation mode is mainly different from the second implementation mode in that:

[0034] A filter screen is provided on the rear side of the first three-way valve 282 and is connected to the outer side of the air compressor body 1. The filter plate 22 is a circular plate and a convex ring is provided on the edge thereof for rotationally connecting to the inner side of the shell 21. The filter screen protects the rear side of the first three-way valve 282, and the convex ring prevents the filter plate 22 from falling off.

[0035] The present invention also provides a remote centralized control system for an air compressor in a coal mine, comprising a control module, the control module is connected to an exhaust module for exhaust treatment in the coal mine, the exhaust module is respectively connected to a filter module for extracting gas filtration and a monitoring module for monitoring, the exhaust module is also connected to a cleaning module for cleaning the filter module, the monitoring module is connected to an alarm module for alarming, the control module is respectively connected to the monitoring module and the alarm module, and the control module is also connected to a display module for data and image observation;

[0036] The monitoring module includes a video monitoring module, a temperature monitoring module, a humidity monitoring module, and a gas concentration monitoring module. The video monitoring module is installed underground in a coal mine to monitor the outside of the air compressor. The temperature monitoring module, the humidity monitoring module, and the gas concentration monitoring module are respectively installed at the filter module end to monitor the temperature, humidity, and concentration of the gas extracted by the air compressor; the cleaning module includes a scraping module for stripping impurities retained on the outer surface of the filter module, and the cleaning module also includes a dredging module for clearing impurities blocked at the filter end of the filter module. The scraping module and the dredging module are both connected to the exhaust module; the cleaning module also includes a switching module for switching the exhaust direction of the exhaust end of the exhaust module.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] When in use, the user extracts the gas in the mine through the air compressor body 1, the third three-way valve, and the filter element 2. The gas is drawn in through the filter plate 22 on the front side of a shell 21. The humidity sensor 26, the temperature sensor 27, and the gas concentration sensor 29 in the shell 21 detect and process the humidity, temperature, and concentration of the gas and feed them back to the external control module. The control module analyzes and processes the humidity, temperature, and concentration data of the gas, and when the data exceeds the corresponding threshold, the alarm module performs an alarm process. The filter plate 22 filters the solid impurities in the gas, and then the gas is discharged through the inner side of the air compressor body 1, the exhaust pipe 281, and the first three-way valve 282. To a suitable position, when it is necessary to clean the filter plate 22, start the motor 24, the motor 24 drives the filter plate 22 to rotate through the bevel gear assembly 25, the scraper 23 scrapes and cleans the outer surface of the filter plate 22 to promote the removal of retained impurities, and when it is necessary to dredge the filter holes of the filter plate 22, the air suction end of the air compressor body 1 switches the air suction position through the third three-way valve, so that the air compressor body 1 exhausts air through another group of shells 21 and filter plates 22, and at this time, the first three-way valve 282 is reversed. At this time, the gas is back-blown through the first conduit 283, the second three-way valve 284, the second conduit 285, and the jet strip 286 to the filter holes in the rotating filter plate 22, so as to push out the retained impurities in the filter holes.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underground air compressor for a coal mine, comprising an air compressor body (1), characterized in that: The air compressor body (1) is connected to auxiliary parts for assisting the operation in the coal mine, and the auxiliary parts include: A filter element (2) is installed at the front suction end of the air compressor body (1) for gas filtering. The filter element (2) comprises two groups of shells (21) arranged at the front suction end of the air compressor body (1). The front side of the shell (21) is rotatably connected with a filter plate (22) for gas filtering. The front side of the shell (21) is installed with a scraper (23) for stripping impurities retained on the front side of the filter plate (22). The top of the shell (21) is provided with a motor (24) for driving the filter plate (22) to rotate. The two groups of shells (21) are connected with a back-blowing element (28) for clearing the filter plate (22). The back-blowing element (28) comprises two groups of jet strips (286) installed on the inner side of the shell (21).

2. The coal mine underground air compressor according to claim 1, characterized in that: The filter element (2) further comprises a bevel gear assembly (25) driven by the motor (24) and connected to the filter plate (22); the driving bevel gear in the bevel gear assembly (25) is coaxially fixedly connected to the output end of the motor (24); the middle portion of the filter plate (22) is coaxially fixedly connected to the driven bevel gear assembly in the bevel gear assembly (25); a humidity sensor (26), a temperature sensor (27), and a gas concentration sensor (29) for detecting the humidity, temperature, and concentration of the gas extracted by the air compressor body (1) are respectively installed in the housing (21); and the scraper (23) is in contact with the front side of the filter plate (22).

3. The coal mine underground air compressor according to claim 1, characterized in that: The back-blowing component (28) further comprises an exhaust pipe (281) installed on the exhaust side of the air compressor body (1); a first three-way valve (282) for reversing the direction of exhaust gas is provided at the bottom of the exhaust pipe (281); a first conduit (283) is installed on the front side of the first three-way valve (282); a second three-way valve (284) for switching the air supply of two groups of jet strips (286) is installed on the front side of the air compressor body (1); a group of second conduits (285) fixedly connected to the jet strips (286) are respectively provided on both sides of the second three-way valve (284); a plurality of jet holes are provided on the front side of the jet strip (286) near the filter plate (22); a third three-way valve for switching the direction of exhaust gas is provided inside the air compressor body (1) near the two groups of shells (21); and the two groups of shells (21) are respectively connected to the two sides of the third three-way valve.

4. The coal mine underground air compressor according to claim 3, characterized in that: A filter screen is provided at the rear side of the first three-way valve (282) and is in communication with the outside of the air compressor body (1); the filter plate (22) is a circular plate and has a convex ring on its edge that is rotatably connected to the inside of the housing (21).

5. A remote centralized control system for an underground air compressor in a coal mine, comprising a control module, wherein the control module is connected to an exhaust module used for exhaust treatment in the coal mine, wherein the exhaust module is respectively connected to a filter module for filtering the extracted gas and a monitoring module for monitoring, wherein the exhaust module is also connected to a cleaning module for cleaning the filter module, wherein the monitoring module is connected to an alarm module for alarming, wherein the control module is respectively connected to the monitoring module and the alarm module, wherein the control module is also connected to a display module for data and image observation.

6. A remote centralized control system for an underground air compressor in a coal mine according to claim 5, characterized in that: The monitoring module includes a video monitoring module, a temperature monitoring module, a humidity monitoring module, and a gas concentration monitoring module. The video monitoring module is installed underground in a coal mine to monitor the outside of the air compressor. The temperature monitoring module, humidity monitoring module, and gas concentration monitoring module are respectively installed at the filter module end to monitor the temperature, humidity, and concentration of the gas extracted by the air compressor.

7. A remote centralized control system for an air compressor in a coal mine according to claim 5, characterized in that: The cleaning module includes a scraping module for stripping impurities retained on the outer surface of the filter module, and the cleaning module also includes a dredging module for clearing impurities blocked at the filter end of the filter module. The scraping module and the dredging module are both connected to the exhaust module.

8. A remote centralized control system for an air compressor in a coal mine according to claim 7, characterized in that: The cleaning module also includes a switching module for switching the suction direction of the suction end of the suction module.

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