CN116592000A - Cleaning system and cleaning method for coal mine ventilator - Google Patents

Abstract

The application discloses a cleaning system and a cleaning method for a coal mine ventilator, wherein the cleaning system for the coal mine ventilator comprises the following components: the device comprises a plurality of blade rotating shafts, ventilating ducts, an air supply channel and a dust outlet channel, wherein each blade rotating shaft comprises a mounting section; the ventilating duct defines an air duct, the plurality of blade rotating shafts are arranged in the air duct, each blade rotating shaft is rotatably connected with the ventilating duct through a mounting section, and a fit clearance is defined between the mounting section and the ventilating duct; the air supply channels are multiple, the air supply channels are in one-to-one correspondence with the fit gaps, one end of each air supply channel is communicated with the outside, the other end of each air supply channel is communicated with the fit gaps, the dust outlet channels are multiple, the dust outlet channels are in one-to-one correspondence with the fit gaps, one end of each dust outlet channel is communicated with the outside, and the other end of each dust outlet channel is communicated with the fit gaps. The coal mine ventilator cleaning system solves the problem of larger error of air distribution by cleaning fit clearance blockage, and has higher cleaning efficiency.

Description

Cleaning system and cleaning method for coal mine ventilator

Technical Field

The application relates to the field of mine ventilation equipment, in particular to a cleaning system and a cleaning method for a coal mine ventilator.

Background

A ventilator is a device that increases the pressure of gas and discharges the gas by input mechanical energy. In the related art, a ventilator is used for supplying air or exhausting air into a coal mine tunnel, so that the purposes of ventilation or dust exhaust are achieved. The ventilator in the related art comprises a main pipeline and a plurality of branch pipelines, wherein the main pipeline is communicated with the plurality of branch pipelines, and a plurality of rotatable air deflectors are arranged in the main pipeline, so that the air quantity of the main pipeline conveyed to the plurality of branch pipelines is controlled by adjusting the swing angles of the air deflectors. However, the ventilator in the related art has a problem that the branch duct is liable to have insufficient air volume or excessive air volume after being used for a long time, thereby affecting the normal operation of mining work.

Disclosure of Invention

The present application aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the application provides a coal mine ventilator cleaning system which solves the problem of larger error of air quantity distribution and has higher cleaning efficiency by cleaning fit clearance blockage.

The coal mine ventilator cleaning system of the embodiment of the application comprises: the blade rotating shafts are multiple, and each blade rotating shaft comprises a mounting section; the ventilation pipeline is used for defining an air channel, a plurality of blade rotating shafts are arranged in the air channel, each blade rotating shaft is rotatably connected with the ventilation pipeline through the mounting section, and a fit clearance is defined between the mounting section and the ventilation pipeline; the dust collecting device comprises a plurality of air supply channels and dust outlet channels, wherein the plurality of air supply channels are in one-to-one correspondence with the plurality of fit gaps, one end of each air supply channel is communicated with the outside, the other end of each air supply channel is communicated with the fit gaps, so that blowing air is conveyed into the fit gaps through the air supply channels, the plurality of dust outlet channels are in one-to-one correspondence with the fit gaps, one end of each dust outlet channel is communicated with the outside, and the other end of each dust outlet channel is communicated with the fit gaps, so that dust in the fit gaps is discharged to the outside through the dust outlet channels.

After the fit clearance in the ventilation pipeline of the coal mine ventilator cleaning system is blocked, the blowing air can be introduced into the fit clearance by using the air supply channel connected with the fit clearance. The cooperation gap is dredged by using the blowing air, and the blown dust is discharged through the dust outlet channel. Therefore, the problem of larger error of air distribution caused by the blockage of the fit clearance is solved. And the cleaning operation can be completed without stopping the ventilator, the normal operation of mining work can not be influenced, and the cleaning efficiency is high.

Therefore, the coal mine ventilator cleaning system solves the problem of large error of air quantity distribution by cleaning fit clearance blockage, and has high cleaning efficiency.

In some embodiments, the ventilation pipeline comprises a plurality of mounting holes, the mounting holes are formed in the inner wall surface of the ventilation pipeline, a plurality of mounting sections are arranged in the mounting holes in a one-to-one correspondence manner, and the fit clearance is defined between the mounting sections and the mounting holes; the other end of each air supply channel penetrates through the mounting hole to be communicated with the fit clearance, and the other end of each dust outlet channel penetrates through the mounting hole to be communicated with the fit clearance.

In some embodiments, the coal mine ventilator cleaning system further comprises: the blocking state module comprises a wind speed detector and a wind speed comparison unit, wherein the wind speed detector is electrically connected with the wind speed comparison unit, the wind speed detector is arranged in the fit gap and is used for collecting actual wind speed information, the wind speed comparison unit can store preset wind speed information, and the wind speed comparison unit can judge the blocking condition of the fit gap according to the preset wind speed information and the actual wind speed information.

In some embodiments, the coal mine ventilator cleaning system further comprises: the device comprises a position detection module and a motion execution module, wherein the detection module comprises a beam emitter and a beam acquisition component, the beam emitter is arranged on the outer peripheral surface of the installation section, a part of the beam acquisition component is arranged on the inner wall surface of the installation hole corresponding to the installation section, a beam emitted by the beam emitter is incident on the part of the beam acquisition component, the beam acquisition component can judge the offset angle of the blade rotating shaft according to the beam incident by the beam emitter, the motion execution module is electrically connected with the beam acquisition component, and the beam acquisition component can feed back an offset correction signal to the motion execution module so that the motion execution module corrects the blade rotating shaft according to the offset correction signal.

In some embodiments, the beam acquisition assembly further comprises: the light beam receiver is arranged on the inner wall surface of the mounting hole corresponding to the mounting section, is used for receiving the light beam emitted by the light beam emitter, and can convert the received light signal into actual rotation angle data of the blade rotating shaft, and the database unit is used for storing target rotation angle data of the blade rotating shaft; and the data comparison unit is electrically connected with the light beam receiver and the database unit, calculates the offset correction signal according to the actual rotation angle data and the standard rotation angle data, and can feed back the offset correction signal for the action execution module.

In some embodiments, the coal mine ventilator cleaning system further comprises: the guide plates are arranged in the air supply channel, the guide plates are spaced along the axial direction of the mounting hole, and one end, adjacent to the mounting hole, of each guide plate is adjacent to the air duct in the axial direction of the mounting hole relative to the other end of each guide plate.

The cleaning method of the coal mine ventilator provided by the embodiment of the application comprises the following steps of: s1, conveying purge air into an air supply channel so that the purge air cleans dust in a fit clearance; s2, detecting whether the fit gap is in a blocking state or not by using a blocking state module, if so, continuing to purge, and if not, stopping purging; and S3, detecting the offset angle of the blade rotating shaft by using a position detection module, and driving the blade rotating shaft to rotate to a target position by using an action execution module.

In some embodiments, the step S2 further includes: and detecting wind is introduced into the air supply channel, a wind speed detector acquires actual wind speed information in the fit gap, a wind speed comparison unit judges whether the fit gap is in a blocking state according to the difference value between the actual wind speed information and preset wind speed information, if the difference value between the actual wind speed information and the preset wind speed information is smaller than a first preset value, the fit gap is in an unblocking state, and if the difference value between the actual wind speed information and the preset wind speed information is larger than or equal to the first preset value, the fit gap is in a blocking state.

In some embodiments, the step S3 further includes: the light beam receiver collects incident light beams sent by the light beam transmitter to obtain actual rotation angle information of the blade rotating shaft, the data comparison unit compares the actual rotation angle information with target rotation angle data in the database unit, and the data comparison unit feeds back offset correction signals to the action execution unit to drive the blade rotating shaft to rotate to a target position.

In some embodiments, the step S3 further includes: the data comparison unit obtains an actual angle error according to the actual rotation angle information and the target rotation angle data; if the actual angle error is larger than a preset error value, the data comparison unit feeds back the offset correction signal to the action execution unit.

Drawings

Fig. 1 is a schematic structural diagram of a cleaning system for a coal mine ventilator according to an embodiment of the application.

Fig. 2 is a schematic structural diagram of a cleaning system for a coal mine ventilator according to an embodiment of the application.

Fig. 3 is a schematic cross-sectional view of A-A of fig. 2.

Fig. 4 is a schematic view of the B-B cross section of fig. 2.

Reference numerals:

a coal mine ventilator cleaning system 100;

a blade rotation shaft 1; a mounting section 11; a first section 111; a second section 112; a third section 113;

a ventilation duct 2; an air duct 20; a fit gap 201; a mounting hole 21; an air intake chamber 22; a dust outlet chamber 23; an air inlet 24;

an air supply passage 31; a dust outlet channel 32;

a sub-channel 4;

a blocking status module 5; a wind speed detector 51;

a position detection module 6; a beam emitter 61; a beam acquisition assembly 62; a beam receiver 621;

a guide plate 7; a shaft seal 8; and a bearing 9.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

A coal mine ventilator cleaning system 100 in accordance with an embodiment of the present application is described below with reference to the accompanying drawings.

As shown in fig. 1 to 4, a cleaning system 100 for a coal mine ventilator according to an embodiment of the present application includes a blade rotation shaft 1, a ventilation duct 2, an air supply passage 31, and a dust discharge passage 32.

The blade pivot 1 is a plurality of, and every blade pivot 1 includes mounting section 11, and air duct 2 defines wind channel 20, and a plurality of blade pivots 1 are established in wind channel 20, and every blade pivot 1 links to each other with air duct 2 rotatably through mounting section 11, and defines fit clearance 201 between mounting section 11 and the air duct 2. In other words, the guide blades are mounted on the rotating shaft, and the rotation of the blade rotating shaft 1 can drive the guide blades to rotate, and the plurality of guide blades are rotated to a target angle through the rotation of the plurality of guide blades, so that the purpose of distributing the air quantity is achieved.

The air supply channels 31 are plural, the plural air supply channels 31 are in one-to-one correspondence with the plural fitting gaps 201, and one end of each air supply channel 31 is communicated with the outside, wherein the one end is adapted to be connected with an outside air source, for example, the one end is connected with a fan, so that the air source supplies purge air into the fitting gaps 201. The other end of each air supply passage 31 communicates with the fitting gap 201 so as to supply purge air into the fitting gap 201 through the air supply passage 31. The dust outlet channels 32 are multiple, the dust outlet channels 32 are in one-to-one correspondence with the fit gaps 201, one end of each dust outlet channel 32 is communicated with the outside, and the other end of each dust outlet channel 32 is communicated with the fit gap 201, so that dust in the fit gap 201 is discharged to the outside through the dust outlet channels 32.

The ventilator in the related art includes a main duct, a plurality of branch ducts, and a plurality of air deflectors. The main pipe is communicated with the plurality of branch pipes, and the plurality of branch pipes are spaced apart in the up-down direction. The plurality of air deflectors are arranged in the main pipeline, the plurality of air deflectors are spaced in the vertical direction, and the plurality of air deflectors correspond to the communicating positions of the plurality of branch pipelines and the main pipeline. When the air quantity entering a certain determined branch pipe or a plurality of branch pipes needs to be changed, the air guide plate corresponding to the determined branch pipe or the plurality of branch pipes is controlled to change the angle, so that the guiding function of the air guide plate on the air flow is utilized to change part of the air quantity in the main pipe, and the air quantity entering the determined branch pipe or the plurality of branch pipes is adjusted. For example, as shown in fig. 1, when it is necessary to increase the amount of air to be fed into the upper branch duct, the plurality of air deflectors are controlled to rotate so that the plurality of air deflectors move upward near one end of the branch duct, thereby increasing the amount of air flowing upward.

The inventor researches that, because a large amount of dust is carried in the main pipeline during air supply, after the ventilator operates for a long time, even if the end part of the fit clearance is provided with a shaft seal piece, the dust gradually blocks the fit clearance between the guide blade and the main pipeline. After the fit clearance is blocked to a certain extent, the rotation of the guide vane is blocked by the blocked dust, so that the rotation of the guide vane is limited, the guide vane cannot swing to a preset position, and the problem of larger error in distributing air quantity to the branch pipelines is caused.

In addition, after the fit clearance is blocked, in order not to influence the normal use of the ventilator, the ventilator is stopped, and then the air deflector blocked by the fit clearance is detached to clean the fit clearance, so that not only is the labor consumed, but also the normal operation of mining work can be influenced by the stop of the ventilator.

After the fit clearance 201 in the ventilation duct 2 of the ventilation fan cleaning system 100 for the coal mine is blocked, the air supply channel 31 connected with the fit clearance 201 can be used for introducing the purge air into the fit clearance 201. The fit gap 201 is opened by the purge air, and the purged dust is discharged through the dust outlet passage 32. Thereby solving the problem of larger error of air distribution caused by the blockage of the fit clearance 201. And the cleaning operation can be completed without stopping the ventilator, the normal operation of mining work can not be influenced, and the cleaning efficiency is high.

Therefore, the coal mine ventilator cleaning system 100 solves the problem of larger error of air distribution by cleaning the blockage of the fit clearance 201, and has higher cleaning efficiency.

In order to make the present application easier to understand, the following describes the coal mine ventilator cleaning system 100 according to the embodiment of the present application by taking an example in which the axial direction of the mounting hole 21 coincides with the front-rear direction and the extending direction of the ventilation duct 2 coincides with the left-right direction. The vertical direction is perpendicular to the axial direction of the mounting hole 21, and the extending direction of the ventilation duct 2 is perpendicular to the vertical direction and the axial direction of the mounting hole 21.

As shown in fig. 1 to 4, a cleaning system 100 for a coal mine ventilator according to an embodiment of the present application includes a blade rotation shaft 1, a ventilation duct 2, an air supply passage 31, a dust discharge passage 32, a sub-passage 4, a blockage status module 5, a position detection module 6, and an action execution module.

The ventilating duct 2 comprises a plurality of air inlet cavities 22 and dust outlet cavities 23, the air inlet cavities 22 are arranged, one end of each air inlet cavity 22 is communicated with the outside, the other end of each air inlet cavity 22 is communicated with the fit clearance 201, and the air inlet cavities 22 form an air supply channel 31. The air inlet cavities 22 are multiple, one end of each air inlet cavity 22 is communicated with the outside, the other end of each air inlet cavity 22 is communicated with the fit clearance 201, and the air inlet cavities 22 form an air supply channel 31.

In other words, the air inlet chamber 22 forms the air supply channel 31 and the dust outlet chamber 23 forms the dust outlet channel 32, and the air supply channel 31 and the dust outlet channel 32 are integrated with the ventilation duct 2, so that no additional air supply pipeline equipment is required, and structural redundancy is reduced.

As shown in fig. 1, the ventilation duct 2 communicates with each of the plurality of sub-passages 4, and the plurality of sub-passages 4 are spaced apart in the up-down direction. A plurality of vane shafts 1 are provided in the ventilation duct 2, the plurality of vane shafts 1 being spaced apart in the up-down direction and corresponding to where the plurality of sub-passages 4 communicate with the ventilation duct 2.

The ventilation duct 2 includes a plurality of mounting holes 21, the mounting holes 21 are formed in an inner wall surface of the ventilation duct 2, a plurality of mounting sections 11 are provided in the plurality of mounting holes 21 in one-to-one correspondence, and a fitting gap 201 is defined between the mounting sections 11 and the mounting holes 21. The other end of each air supply channel 31 penetrates through the mounting hole 21 to be communicated with the matching gap 201, and an air inlet 24 is formed at the communication position of the other end of the air supply channel 31 and the mounting hole 21. The other end of each dust outlet channel 32 communicates with the through-mounting hole 21 and the fit gap 201. In other words, the ventilation duct 2 is connected to the wall surface of the mounting hole 21, and the ventilation duct 2 is blown in the circumferential direction of the fitting gap 201.

The sweeping wind flows in the circumferential direction of the fit clearance 201 to clean dust, so that a good cleaning effect is achieved. In other words, the dust deposit in the axial direction is thicker than the circumferential air blowing cleaning to the mounting section 11, resulting in a larger power consumption of the apparatus for air blowing than the circumferential air blowing. And when the axial direction of the installation section 11 is purged, the purge wind flowing axially is unevenly distributed in the circumferential direction of the installation section 11, and the cleaning effect is poor. The purge wind flows more uniformly from the circumferential direction of the fit gap 201, and thus the cleaning effect is good.

Further, the mounting section 11 includes a first section 111, a second section 112, and a third section 113. Wherein the first section 111 is adjacent to the air chute 20 and the third section 113 is remote from the air chute 20, and the second section 112 is located between the first section 111 and the third section 113. The shaft seal 8 is sleeved on the first section 111, and the bearing 9 is sleeved on the third section 113. The air inlet 24 corresponds to the second section 112 in the front-rear direction, and the size of the air inlet 24 in the front-rear direction is consistent with the size of the second section 112 in the front-rear direction.

It will be appreciated that the dust that causes the blockage of the fit gap 201 is located at the fit gap 201 corresponding to the second section 112, and the size of the air inlet 24 in the front-rear direction is consistent with the size of the second section 112 in the front-rear direction, so that the purge air conveyed by the air supply channel 31 can be uniformly distributed in the fit gap 201 corresponding to the second section 112, and a part of the fit gap 201 can be fully purged, thereby improving the cleaning effect.

In some embodiments, as shown in fig. 2, the cleaning system 100 for a coal mine ventilator according to the embodiment of the present application further includes a plurality of guide plates 7, the plurality of guide plates 7 are provided in the air supply passage 31, and the plurality of guide plates 7 are spaced apart in the front-rear direction, one end of each guide plate 7 adjacent to the mounting hole 21 is adjacent to the air duct 20 in the axial direction of the mounting hole 21 with respect to the other end thereof.

The inventors have found that the dust accumulated in the fitting gap 201, which is relatively more adjacent to the air duct 20 than the air duct 20, is relatively more, and thus a plurality of guide plates 7 are provided in the air supply duct 31, and the purge air inputted into the fitting gap 201 is distributed by the plurality of guide plates 7. The air quantity introduced into the fit clearance 201 adjacent to one side of the air duct 20 is more than that of the air quantity at the far side, so that the distribution of the blowing air is more reasonable, and the cleaning effect is further improved.

In some embodiments, as shown in fig. 3, the blocking state module 5 includes a wind speed detector 51 and a wind speed comparison unit, where the wind speed detector 51 is electrically connected to the wind speed comparison unit, the wind speed detector 51 is disposed in the fit gap 201, the wind speed detector 51 is used for collecting actual wind speed information, the wind speed comparison unit is capable of storing preset wind speed information, and the wind speed comparison unit is capable of determining a blocking condition of the fit gap 201 according to the preset wind speed information and the actual wind speed information. In other words, the blocking status module 5 can monitor blocking status of the plurality of fit gaps 201, so as to facilitate timely obstacle removal of the coal mine ventilator cleaning system 100 according to the embodiment of the present application. And can also detect whether the clearance in the fit gap 201 is thorough by the blockage status module 5 to determine whether the purge process needs to be continued.

Further, each fit gap 201 is provided with a blocking state module 5, and the blocking state modules 5 in different fit gaps 201 are independent from each other. Thus, each blockage status module 5 can independently monitor the corresponding fit clearance 201 so as to purge a certain fit clearance 201 with a certain blockage, and the cleaning efficiency of the coal mine ventilator cleaning system 100 of the embodiment of the application is further improved.

In some embodiments, as shown in fig. 4, the detection module includes a beam emitter 61 and a beam collecting assembly 62, the beam emitter 61 is disposed on the outer peripheral surface of the mounting section 11, a part of the beam collecting assembly 62 is disposed on the inner wall surface of the mounting hole 21 corresponding to the mounting section 11, the beam emitted by the beam emitter 61 is incident on a part of the beam collecting assembly 62, the beam collecting assembly 62 can determine the offset angle of the blade rotation shaft 1 according to the beam incident by the beam emitter 61, the motion executing module is electrically connected with the beam collecting assembly 62, and the beam collecting assembly 62 can feed back an offset correction signal to the motion executing module, so that the motion executing module corrects the blade rotation shaft 1 according to the offset correction signal. Therefore, the rotation angle of the blade rotating shaft 1 is corrected by matching the action executing module with the detection module.

Optionally, the action execution module is an electric motor. Alternatively, the motion execution module may be another device capable of driving the blade rotation shaft 1 to rotate.

Specifically, the beam collecting assembly 62 further includes a beam receiver 621, a database unit and a data comparing unit, the beam receiver 621 is disposed on an inner wall surface of the mounting hole 21 corresponding to the mounting section 11, the beam receiver 621 is configured to receive the beam emitted from the beam emitter 61, and the beam receiver 621 is configured to convert the received optical signal into actual rotation angle data of the blade rotation shaft 1. The database unit is used for storing target rotation angle data of the blade rotating shaft 1. The beam receiver 621 is electrically connected with a data comparing unit, the data comparing unit is electrically connected with a database unit, and the data comparing unit feeds back an offset correction signal to the action executing module according to the actual rotation angle data and the standard rotation angle data.

In other words, the light beam is projected on the light beam receiver 621 by the light beam emitter 61, reflecting the actual angle of rotation of the rotation shaft, so that the light beam receiver 621 converts the received light signal into actual rotation angle data. The data comparison unit receives the actual rotation angle data, then invokes the target rotation angle data of the rotating shaft blade stored in the database unit, processes the actual rotation angle data and the target rotation angle data in the database unit through the data comparison unit, and enables the data comparison unit to calculate the information containing the adjustment angle required by the rotating shaft blade. The offset correction signal is output to the action execution unit, so that the action execution unit drives the rotating shaft blade to rotate, and the purpose of position correction is achieved. Therefore, the actual position information of the rotating shaft can be obtained by utilizing the matching of the beam emitter 61 and the beam receiver 621, the structure is simple, the occupied space is small, and the normal operation of the blade rotating shaft 1 is not influenced.

The following describes a cleaning method of a coal mine ventilator according to an embodiment of the present application with reference to the accompanying drawings.

As shown in fig. 1, the coal mine ventilator cleaning method of the embodiment of the present application utilizes the coal mine ventilator cleaning system 100 of the above-described embodiment. The cleaning method of the coal mine ventilator comprises the following steps:

step S1, supplying a purge air into the air supply passage 31 so that the purge air cleans dust in the fit gap 201.

Step S2, detecting whether the fit gap 201 is in a blocked state by using the blocked state module 5, if so, continuing purging, and if not, stopping purging.

And S3, detecting the offset angle of the blade rotating shaft 1 by using the position detection module 6, and driving the blade rotating shaft 1 to rotate to the target position by using the action execution module.

The cleaning method of the coal mine ventilator in the embodiment of the application supplies air to the fit gap 201 through the air supply channel 31, and cleans dust in the fit gap 201 by using the blowing air. The blockage condition in the fit gap 201 is again detected after cleaning by the blockage condition module 5 detection to ensure that the fit gap 201 is no longer blocked. And then the action execution module is used for adjusting the blade rotating shaft 1 to a target position so as to enable the coal mine ventilator to resume normal operation. Thereby solving the problem of larger error of air distribution caused by the blockage of the fit clearance 201.

Therefore, the method for cleaning the coal mine ventilator solves the problem of larger error of air quantity distribution by cleaning the blockage of the fit clearance 201.

The following describes the implementation process of the cleaning method of the coal mine ventilator according to the embodiment of the application with reference to the accompanying drawings.

The blowing air is supplied into the air supply passage 31 so that the blowing air cleans dust in the fit gap 201, and the blown dust is discharged to the outside through the dust discharge passage 32.

After purging, the detected wind is introduced into the air supply channel 31, the wind speed detector 51 collects the actual wind speed information in the fit gap 201, and the wind speed comparison unit judges whether the fit gap 201 is in a blocking state according to the difference value between the actual wind speed information and the preset wind speed information. If the difference between the actual wind speed information and the preset wind speed information is smaller than the first preset value, the fit gap 201 is in an unblocked state, and if the difference between the actual wind speed information and the preset wind speed information is larger than or equal to the first preset value, the fit gap 201 is in an unblocked state.

Note that, the preset wind speed information is a certain value, but specific values of the preset wind speed information need to be determined according to specific structures of the air supply passage 31, the fit clearance 201, and the dust outlet passage 32. Similarly, the first preset value needs to be determined according to the specific structures of the air supply channel 31, the fit clearance 201 and the dust outlet channel 32. Therefore, specific values of the preset wind speed information and specific values of the first preset value are not limited herein.

In addition, when the value of the preset wind speed information is determined, the cleaning of the air supply channel 31, the fit gap 201 and the dust outlet channel 32 is ensured, and then the detected wind is input into the fit gap 201 through the air supply channel 31, and the wind speed information detected by the wind speed detector 51 is recorded as the preset wind speed information. When the blocking condition of the detection fit gap 201 is utilized later, the detected wind parameter needs to be consistent with the detected wind parameter when the value of the preset wind speed information is determined, so that the accuracy of blocking condition detection is ensured.

The position detection module 6 is used for detecting the offset angle of the blade rotating shaft 1, and the action execution module is used for driving the blade rotating shaft 1 to rotate to the target position. When the detection module detects the offset angle of the blade rotation shaft 1, the beam receiver 621 collects the incident beam emitted by the beam emitter 61 to obtain the actual rotation angle information of the blade rotation shaft 1, and the data comparison unit compares the actual rotation angle information with the target rotation angle data in the database unit, and the data comparison unit feeds back the offset correction signal to the action execution unit to drive the blade rotation shaft 1 to rotate to the target position.

Specifically, the data comparison unit obtains an actual angle error according to the actual rotation angle information and the target rotation angle data. If the actual angle error is larger than the preset error value, the data comparison unit feeds back an offset correction signal to the action execution unit; if the actual angle error is smaller than or equal to the preset error value, the data comparison unit does not feed back the instruction signal to the action execution unit.

Further, if the difference between the target rotation angle data and the actual rotation angle information is smaller than zero, the offset correction signal fed back by the data comparison unit to the action execution module comprises a clockwise rotation instruction, and the action execution module drives the blade rotating shaft 1 to rotate clockwise; if the difference between the target rotation angle data and the actual rotation angle information is greater than zero, the offset correction signal fed back by the data comparison unit to the action execution module comprises a counterclockwise rotation instruction, and the action execution module drives the blade rotating shaft 1 to rotate counterclockwise.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

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

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A coal mine ventilator cleaning system, comprising:

the blade rotating shafts are multiple, and each blade rotating shaft comprises a mounting section;

the ventilation pipeline is used for defining an air channel, a plurality of blade rotating shafts are arranged in the air channel, each blade rotating shaft is rotatably connected with the ventilation pipeline through the mounting section, and a fit clearance is defined between the mounting section and the ventilation pipeline;

the dust collecting device comprises a plurality of air supply channels and dust outlet channels, wherein the plurality of air supply channels are in one-to-one correspondence with the plurality of fit gaps, one end of each air supply channel is communicated with the outside, the other end of each air supply channel is communicated with the fit gaps, so that blowing air is conveyed into the fit gaps through the air supply channels, the plurality of dust outlet channels are in one-to-one correspondence with the fit gaps, one end of each dust outlet channel is communicated with the outside, and the other end of each dust outlet channel is communicated with the fit gaps, so that dust in the fit gaps is discharged to the outside through the dust outlet channels.

2. The coal mine ventilator cleaning system of claim 1, wherein the ventilation duct includes a plurality of mounting holes, the mounting holes are formed in an inner wall surface of the ventilation duct, a plurality of mounting sections are arranged in the plurality of mounting holes in one-to-one correspondence, and the fit clearance is defined between the mounting sections and the mounting holes;

the other end of each air supply channel penetrates through the mounting hole to be communicated with the fit clearance, and the other end of each dust outlet channel penetrates through the mounting hole to be communicated with the fit clearance.

3. The coal mine ventilator cleaning system of claim 2, further comprising: the blocking state module comprises a wind speed detector and a wind speed comparison unit, wherein the wind speed detector is electrically connected with the wind speed comparison unit, the wind speed detector is arranged in the fit gap and is used for collecting actual wind speed information, the wind speed comparison unit can store preset wind speed information, and the wind speed comparison unit can judge the blocking condition of the fit gap according to the preset wind speed information and the actual wind speed information.

4. A coal mine ventilator cleaning system in accordance with claim 3, further comprising: the device comprises a position detection module and a motion execution module, wherein the detection module comprises a beam emitter and a beam acquisition component, the beam emitter is arranged on the outer peripheral surface of the installation section, a part of the beam acquisition component is arranged on the inner wall surface of the installation hole corresponding to the installation section, a beam emitted by the beam emitter is incident on the part of the beam acquisition component, the beam acquisition component can judge the offset angle of the blade rotating shaft according to the beam incident by the beam emitter, the motion execution module is electrically connected with the beam acquisition component, and the beam acquisition component can feed back an offset correction signal to the motion execution module so that the motion execution module corrects the blade rotating shaft according to the offset correction signal.

5. The coal mine ventilator cleaning system of claim 4, wherein the light beam acquisition assembly further comprises:

the beam receiver is arranged on the inner wall surface of the mounting hole corresponding to the mounting section and is used for receiving the light beam emitted by the beam emitter and converting the received light signal into the actual rotation angle data of the blade rotating shaft,

the database unit is used for storing target rotation angle data of the blade rotating shaft; and

the light beam receiver is electrically connected with the data comparison unit, the data comparison unit is electrically connected with the database unit, the data comparison unit calculates the offset correction signal according to the actual rotation angle data and the standard rotation angle data, and the data comparison unit can feed back the offset correction signal for the action execution module.

6. The coal mine ventilator cleaning system of claim 4, further comprising: the guide plates are arranged in the air supply channel, the guide plates are spaced along the axial direction of the mounting hole, and one end, adjacent to the mounting hole, of each guide plate is adjacent to the air duct in the axial direction of the mounting hole relative to the other end of each guide plate.

7. A method of cleaning a coal mine ventilator using the coal mine ventilator cleaning system of any of claims 4-6, comprising the steps of:

s1, conveying purge air into an air supply channel so that the purge air cleans dust in a fit clearance;

s2, detecting whether the fit gap is in a blocking state or not by using a blocking state module, if so, continuing to purge, and if not, stopping purging;

and S3, detecting the offset angle of the blade rotating shaft by using a position detection module, and driving the blade rotating shaft to rotate to a target position by using an action execution module.

8. The method of cleaning a coal mine ventilator of claim 7, wherein the step S2 further comprises: introducing detection wind into the air supply channel, collecting actual wind speed information in the fit clearance by a wind speed detector, judging whether the fit clearance is in a blocking state or not by a wind speed comparison unit according to the difference value of the actual wind speed information and preset wind speed information,

if the difference between the actual wind speed information and the preset wind speed information is smaller than the first preset value, the fit clearance is in an unblocked state,

if the difference value between the actual wind speed information and the preset wind speed information is larger than or equal to a first preset value, the fit clearance is in a blocking state.

9. The method of cleaning a coal mine ventilator of claim 7, wherein the step S3 further comprises: the light beam receiver collects incident light beams sent by the light beam transmitter to obtain actual rotation angle information of the blade rotating shaft, the data comparison unit compares the actual rotation angle information with target rotation angle data in the database unit, and the data comparison unit feeds back offset correction signals to the action execution unit to drive the blade rotating shaft to rotate to a target position.

10. The method of cleaning a coal mine ventilator of claim 9, wherein the step S3 further comprises: the data comparison unit obtains an actual angle error according to the actual rotation angle information and the target rotation angle data; if the actual angle error is larger than a preset error value, the data comparison unit feeds back the offset correction signal to the action execution unit.