Drilling machine dust removal system control method, drilling machine dust removal system and down-the-hole drill

Abstract

The present disclosure relates to a drilling machine dust removal system control method, a drilling machine dust removal system and a down-the-hole drill, wherein the control method comprises: obtaining working mode information of the drilling machine, wherein the working mode information comprises a walking mode, a drilling mode and a rod changing mode; determining the working conditions of a fan suction system and a spray dusting system according to the working mode information; wherein the fan suction system comprises a first on-off valve (11) and a fan (8), and the fan (8) is configured to suck dust-containing gas to make dust adsorbed on a filter cartridge (7) in a state where the first on-off valve (11) is turned on; the spray dusting system comprises a second on-off valve (12) and a spray pipe (10), and the spray pipe (10) is configured to make high-pressure gas enter the filter cartridge (7) instantaneously to make the dust adsorbed on the filter cartridge (7) fall off in a state where the second on-off valve (12) is turned on.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of mobile equipment dust removal, in particular to a drilling rig dust removal system control method, a drilling rig dust removal system and a down-the-hole drill. BACKGROUND

[0002] The down-the-hole drill belongs to one kind of open pit rock drilling rig. It is a rock drilling equipment that breaks rock through compressed air driving down-the-hole hammer and discharges rock debris in the hole, and realizes the drilling function by rotation and propulsion, and is widely used in the fields of mine, quarry, water conservancy project, railway and highway construction, etc. When the down-the-hole drill is in drilling operation, a large amount of rock dust will be generated, which pollutes the environment, endangers the personal health of the operator, and at the same time affects the operator's vision, hinders the operation and affects the drilling quality.

[0003] In the related technology known to the inventors, the down-the-hole drill is generally provided with a dust removal device. The commonly used dust removal device is divided into wet dust removal and dry dust removal. The wet dust removal device needs water source and is not convenient to use in open pit mine, so it is relatively less used. The dry dust removal device is widely used. The dry dust removal device generally includes two-stage dust removal, mainly including a dust catching hood, a cyclone dust removal cyclone barrel and a dust removal box body with a filter cartridge. The side wall and the bottom of the dust removal box are respectively provided with a dust suction port and a dust discharge port, and the top of the dust removal box body is provided with a dust suction fan. The dust suction fan sucks the dust-containing gas into the dust removal box body, and after filtration by the filter cartridge, the clean gas is discharged into the atmosphere. The dust filtered by the filter cartridge needs to be cleaned in time. Usually, a pulse electromagnetic valve is used to spray compressed gas into the filter cartridge to make the filter cartridge produce sharp impact vibration and expansion, so that the dust attached to the filter cartridge is separated from the filter cartridge, and the dust cleaning is completed. The related technology can only control the pulse electromagnetic valve to spray and blow dust according to this single mode after setting the scheme once. If you want to change the scheme, you must stop and set again. The drilling rig will be in different working conditions in actual work. Single control will cause energy waste, and too much spraying and blowing will reduce the service life of the filter cartridge. SUMMARY

[0004] Embodiments of the present disclosure provide a drilling rig dust removal system control method, a drilling rig dust removal system and a down-the-hole drill, which can use reasonable control strategy according to different working conditions to save energy and reduce consumption.

[0005] According to a first aspect of the present disclosure, a drilling rig dust removal system control method is provided, comprising:

[0006] obtaining working mode information of the drilling rig, the working mode information including walking mode, drilling mode and rod changing mode;

[0007] determining the working conditions of the fan suction system and the spraying and dusting system according to the working mode information;

[0008] The fan suction system comprises a first on-off valve and a fan, and the fan is configured to suck dust-containing gas to make dust adsorbed on the filter cartridge in a state where the first on-off valve is turned on; the spray dusting system comprises a second on-off valve and a spray pipe, and the spray pipe is configured to make high-pressure gas enter the filter cartridge instantaneously to make dust adsorbed on the filter cartridge fall off in a case where the second on-off valve is turned on.

[0009] In some embodiments, in a case where the drilling rig is in a walking mode, neither the fan suction system nor the spray dusting system works or stops after power-on self-checking.

[0010] In some embodiments, in a case where the drilling rig is in a drilling mode, the first on-off valve is turned on to make the fan run at a high rotating speed, and the spray dusting system works in a first spray strategy.

[0011] In some embodiments, the spray pipe is provided with multiple paths, and each path of the spray pipe is provided with a second on-off valve, and the first spray strategy comprises:

[0012] The second on-off valves are turned on in sequence after being spaced apart by a first preset time, each second on-off valve controls the spray pipe at the path to spray for a second preset time, and the first preset time is greater than the second preset time.

[0013] In some embodiments, in a case where the drilling rig is in a rod changing mode, the first on-off valve is turned off to make the fan switch to run at a low rotating speed or stop running, and the spray dusting system works in a second spray strategy.

[0014] In some embodiments, in a case where the drilling rig is in a drilling mode, the spray dusting system works in the first spray strategy, and a spray frequency of the spray pipe in the second spray strategy is higher than that in the first spray strategy.

[0015] In some embodiments, the spray pipe is provided with multiple paths, and each path of the spray pipe is provided with a second on-off valve, and the second spray strategy comprises:

[0016] The second on-off valves are turned on simultaneously after being spaced apart by a third preset time, each second on-off valve controls the spray pipe at the path to spray for a fourth preset time, and the spray is stopped after being sprayed N times, and the third preset time is greater than the fourth preset time.

[0017] According to a second aspect of the present disclosure, a control device is provided for implementing the drilling rig dust removal system control method in the above embodiments.

[0018] According to a third aspect of the present disclosure, a drilling rig dust removal system is provided, comprising a fan suction system, a spray dusting system, and the control device in the above embodiments.

[0019] In some embodiments, the drilling rig dust removal system further comprises:

[0020] A dust trap configured to trap dust generated during drilling rod operation;

[0021] A cyclone separator arranged downstream of the dust trap and configured to preliminarily separate dust in the dust-containing gas; and

[0022] A dust removal box comprising a filter cartridge, a fan suction system and a pulse dusting system, the dust removal box being configured to secondarily separate dust in the dust-containing gas.

[0023] According to a fourth aspect of the present disclosure, a down-the-hole drill is provided, comprising the control device of the above-mentioned embodiments or the drill dust removal system of the above-mentioned embodiments.

[0024] Based on the above technical solutions, the dust removal system control method of the embodiments of the present disclosure determines the working condition according to different working mode information such as walking mode, drilling mode or rod changing mode, simultaneously involves the control of fan suction and pulse dusting, and can control the fan suction and pulse dusting in multiple modes according to the commonly used predetermined scheme, can optimize the dust removal effect of the drill dust removal system, and uses reasonable control strategies according to different working conditions, so as to achieve the purpose of saving energy and reducing loss. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the present disclosure and constitute a part of the present disclosure, illustrate the illustrative embodiments of the present disclosure and the description thereof and do not constitute improper limitations on the present disclosure. In the drawings:

[0026] Figure 1 A module schematic diagram of some embodiments of the drill dust removal system control method of the present disclosure.

[0027] Figure 2 A component schematic diagram of some embodiments of the drill dust removal system of the present disclosure.

[0028] LEGEND OF THE DRAWINGS

[0029] 1, dust trap; 2, sealing gasket; 3, drill rod; 4, cyclone separator; 5, pipeline; 6, dust removal box; 7, filter cartridge; 8, fan; 9, fan motor; 10, blowing pipe; 11, first on-off valve; 12, second on-off valve; 13, air pocket. DETAILED DESCRIPTION

[0030] The present disclosure is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect thus defined, can be combined with any other aspect or aspects, unless explicitly stated otherwise. In particular, any feature that is considered to be preferred or advantageous can be combined with other feature or features that are considered to be preferred or advantageous.

[0031] The terms "first", "second", and the like appearing in the present disclosure are only for the convenience of description, to distinguish different components with the same name, and do not represent a chronological or primary and secondary relationship.

[0032] In the description of the present disclosure, it should be understood that the terms "in", "out", "up", "down", "left" and "right" and the like indicate the orientation or positional relationship based on the operator sitting on the cab seat as the reference, only for the convenience of describing the present disclosure, and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present disclosure.

[0033] Firstly, the present disclosure proposes a drilling rig dust removal system control method, hereinafter referred to as "control method", which can be used for the control of a down-the-hole drill, and can also be used for the dust removal system of any drilling rig with a fan suction system and a spray dusting system, etc. In some of the subsequent embodiments, the control of a down-the-hole drill is taken as an example for description. In order to make the content of the present disclosure clearer, and in order to facilitate the description of the present disclosure, the definitions of some abbreviations and key terms are given here. The definitions of these specific terms do not constitute a limitation on the scope of protection of the present disclosure:

[0034] Pulse dust removal: After the dust removal system sucks dust, the filter core / filter cartridge filters out the dust, which will adhere to the filter core / filter cartridge. The more dust, the greater the system resistance. A pulse solenoid valve is used to instantaneously blow the high-pressure gas in the gas pocket into the filter core / filter cartridge to remove the dust. This process is called pulse dust removal.

[0035] In some illustrative embodiments, as shown in Figure 1 and Figure 2 The control method comprises:

[0036] Obtaining working mode information of the drilling rig, the working mode information comprising a walking mode, a drilling mode and a rod changing mode;

[0037] Determining the working conditions of the fan suction system and the spray dusting system according to the working mode information;

[0038] The fan suction system comprises a first on-off valve 11 and a fan 8, and the fan 8 is configured to suck dust-containing gas to make dust adhere to the filter cartridge 7 in the state that the first on-off valve 11 is turned on. The spray dusting system comprises a second on-off valve 12 and a spray pipe 10, and the spray pipe 10 is configured to make high-pressure gas instantaneously enter the filter cartridge 7 to make the dust adhering to the filter cartridge 7 fall off in the case that the second on-off valve 12 is turned on.

[0039] Specifically, the working condition of the fan suction system includes the opening and closing of the first on-off valve 11, and the opening and closing of the first on-off valve 11 can be controlled to control the on-off or running speed of the fan 8, and further control the suction intensity of the dust-containing gas. Specifically, the filter cartridge 7 can include a filter core, and the dust adsorbed on the filter cartridge 7 or the filter core can be dropped by the instantaneous blowing of the high-pressure gas in the blowing pipe 10 from static to dynamic. More specifically, the working condition of the blowing dust system includes the opening and closing of the second on-off valve 12, and the opening and closing of the second on-off valve 12 can be controlled to control the blowing frequency of the blowing pipe 10. Optionally, the pressure of the high-pressure gas can be 6-7 bar, and the blowing time is in milliseconds, which has the effect of instantaneous high-pressure blowing.

[0040] Specifically, the fan 8 is arranged in the dust removal box 6 to suck the dust-containing gas from bottom to top so that the dust is adsorbed on the filter cartridge 7. Specifically, the blowing pipe 10 is also arranged in the dust removal box 6, and more specifically, the blowing pipe 10 is arranged above the filter cartridge 7, and the multiple branch pipes of the blowing pipe 10 are arranged one-to-one corresponding to the filter cartridge 7, so that the high-pressure gas enters the filter cartridge 7 instantaneously to make the dust adsorbed on the filter cartridge 7 drop from top to bottom.

[0041] Optionally, the fan suction system can further include a fan motor 9 for driving the fan 8 to operate. Optionally, the blowing dust system can further include a gas tank 13 for providing high-pressure gas, such as compressed air, to the blowing pipe 10. Optionally, the first on-off valve 11 can be a separately arranged electromagnetic valve, or can be a group of electromagnetic valves. For example, the first on-off valve 11 can include a hydraulic electric control electromagnetic valve for controlling the on-off of the fan and a throttling speed regulating valve for controlling the rotating speed of the fan, and the second on-off valve 12 can include a blowing electromagnetic valve, etc. Optionally, the filter cartridge 7 is arranged in multiple groups, and each group of filter cartridges 7 is arranged in multiple numbers, for example, 6. The multiple groups of filter cartridges are arranged in a direction perpendicular to the paper surface.

[0042] Specifically, in the walking mode, the drilling machine does not perform drilling operation and no dust is generated; in the drilling mode, the drill rod 3 performs drilling operation and generates a large amount of dust; the rod changing mode can include the rod unloading mode, and in the rod changing mode, the drill rod 3 does not drill into the ground to generate dust.

[0043] Specifically, the down-the-hole drill will be in different working conditions in actual work. If the fan 8 can only be controlled in a single mode after a set scheme, energy waste will inevitably occur. If the pulse dust removal can only be controlled in a single mode after a set scheme, excessive blowing will occur and the service life of the filter cartridge 7 will be reduced. The drilling machine dust removal system control method of the embodiment can save energy, optimize the dust removal effect, prolong the service life of the filter cartridge 7, and reduce the loss by using reasonable control strategies according to different working conditions.

[0044] The control method of the embodiment determines the working condition according to different working mode information such as the walking mode, the drilling mode or the rod changing mode, and involves the control of the fan suction and the pulse dust removal, and can control the fan suction and the pulse dust removal in multiple modes according to the commonly used predetermined scheme, can optimize the dust removal effect of the drilling machine dust removal system, and can save energy and reduce loss by using reasonable control strategies according to different working conditions.

[0045] In some embodiments, when the drilling machine is in the walking mode, neither the fan suction system nor the spray dusting system works or stops after power-on self-checking.

[0046] Specifically, in the walking mode, the drilling machine does not perform the punching operation, no dust is generated, and neither the fan suction system nor the spray dusting system works, that is, the fan 8 does not run, and the spray pipe 10 does not spray high-pressure gas, which can not only avoid the continuous running of the fan 8 to save energy, but also avoid unnecessary spraying of the spray pipe 10 to reduce the dusting frequency of the filter cartridge 7 and prolong the service life of the filter cartridge 7. Specifically, the power-on self-checking of the fan suction system and the spray dusting system can check whether the drilling machine dust removal system is normal and optimize the dust removal effect of the drilling machine dust removal system.

[0047] The control method of the embodiment can save energy, avoid unnecessary spraying of the spray pipe, prolong the service life of the filter cartridge 7, and optimize the dust removal effect of the drilling machine dust removal system by stopping the fan suction system and the spray dusting system when the drilling machine is in the walking mode.

[0048] In some embodiments, when the drilling machine is in the drilling mode, the first on-off valve 11 is connected to make the fan 8 run at high speed, and the spray dusting system works in the first spraying strategy.

[0049] Specifically, in the drilling mode, the drill rod 3 performs the punching operation, generates more dust, and needs the fan 8 to run at high speed to suck the dust-containing gas, so that the dust is quickly adsorbed on the filter cartridge 7 to clear the dust in the operator's line of sight and improve the drilling quality. Specifically, according to different working modes, different spraying strategies of the spray dusting system can be selected to reduce the necessary spraying frequency of the spray pipe 10, reduce the dusting frequency of the filter cartridge 7, and prolong the service life of the filter cartridge 7.

[0050] The control method of the embodiment can quickly clear the dust in the operator's line of sight, improve the drilling quality, and avoid unnecessary spraying of the spray pipe to prolong the service life of the filter cartridge by making the first on-off valve 11 connected to make the fan 8 run at high speed and making the spray dusting system work in the first spraying strategy when the drilling machine is in the drilling mode.

[0051] In some embodiments, as Figure 2As shown, the blowing pipe 10 is provided with multiple paths, and each blowing pipe 10 is provided with a second on-off valve 12. The first blowing strategy includes:

[0052] Each second on-off valve 12 is connected in sequence after a first preset time interval, and each second on-off valve 12 controls the spray pipe 10 to spray for a second preset time, and the first preset time is greater than the second preset time.

[0053] Specifically, the second on-off valve 12 is provided with multiple channels, and each channel of the second on-off valve 12 controls a channel of the blowing pipe 10. Each channel of the blowing pipe may be provided with multiple branch pipes corresponding to the filter cartridge 7, for example, 6 branch pipes, and the multiple second on-off valves 12 are arranged perpendicular to the direction of the paper. Specifically, in the process of the fan 8 running at a high speed to suck the dust-laden gas, the direction of the fan's suction airflow is opposite to the direction of the dust falling from the filter cartridge. At this time, the dust-blowing effect is not good, and it is easy to cause the dust that has been shaken off to be sucked onto the filter cartridge 7 again. By making the dust-blowing system work with the first blowing strategy, the second on-off valves 12 of each channel are connected in sequence at intervals, which can effectively reduce the number of blowing times of the blowing pipe 10. Optionally, the first preset time is in seconds, and the second preset time is in milliseconds.

[0054] The control method of this embodiment enables the blowing and dust vibration system to operate in the first blowing strategy, so that the second on-off valves of each route are connected in sequence and at intervals, so that each blowing pipe sprays one by one, which can reduce the necessary number of blowing times of the blowing pipe, reduce the number of times the filter cartridge is sprayed, and extend the service life of the filter cartridge; however, the first blowing strategy does not completely stop the blowing of the blowing pipe, which can cause excess dust on the filter cartridge to be shaken off, reducing the suction resistance of the fan; this control method can reduce the dust removal cost, improve the dust removal effect, and improve the dust removal efficiency.

[0055] In some embodiments, when the drilling rig is in rod-changing mode, the first on-off valve 11 is disconnected to switch the blower 8 to a low speed or stop running, and the blowing and dust vibration system operates in the second blowing strategy.

[0056] Specifically, in the rod-changing mode, the drill rod 3 no longer drills and generates dust, so the fan 8 is switched to a low speed or stops running to meet the working requirements. At the same time, in the rod-changing mode, it is more necessary to quickly vibrate the dust filter cartridge to remove dust in preparation for the next drilling cycle. Therefore, the fan is slowed down to a low speed or stops running, which can also reduce the influence of the suction wind direction on the dust vibration, so that the spraying and vibrating dust system can achieve a better spraying and vibrating dust effect.

[0057] Specifically, by selecting different blowing strategies for the blowing and vibration dust system according to different working modes, the blowing and vibration dust frequency of the blowing pipe 10 can be accelerated when blowing and vibration dust is required, and the window period when the suction air volume is reduced can be utilized to reduce energy consumption, improve dust removal efficiency, and improve the dust removal effect of the drilling rig dust removal system.

[0058] The control method of this embodiment can reduce the influence of reverse airflow on dusting by disconnecting the first on-off valve 11 to switch the fan 8 to low-speed operation or stop operation in the rod-changing mode of the drilling machine, enable the dusting system to work in the second dusting strategy, meet the needs of the operator's field of view, and quickly dust in the case of needing to dust, so that the filter cartridge is quickly restored to clean, thereby reducing energy consumption, improving dust removal efficiency, and improving dust removal effect.

[0059] In some embodiments, the dusting system works in the first dusting strategy when the drilling machine is in the drilling mode, and the blowing frequency of the blowing pipe 10 in the second dusting strategy is higher than that in the first dusting strategy.

[0060] The control method of this embodiment can reduce the influence of reverse airflow on dusting by disconnecting the first on-off valve 11 to switch the fan 8 to low-speed operation or stop operation in the rod-changing mode of the drilling machine, enable the dusting system to work in the second dusting strategy, meet the needs of the operator's field of view, and quickly dust in the case of needing to dust, so that the filter cartridge is quickly restored to clean, thereby reducing energy consumption, improving dust removal efficiency, and improving dust removal effect.

[0061] In some embodiments, as shown in Figure 2 The second dusting strategy includes:

[0062] Each second on-off valve 12 is turned on at the same time after every third preset time interval, each second on-off valve 12 controls the blowing pipe 10 in the same row to blow for a fourth preset time, and stops blowing after blowing N times, and the third preset time is greater than the fourth preset time.

[0063] Specifically, the second on-off valve 12 has multiple rows, and each second on-off valve 12 controls a blowing pipe 10, and each blowing pipe can have multiple branch pipes corresponding to the filter cartridge 7, for example, six branch pipes, and the multiple second on-off valves 12 are arranged along a direction perpendicular to the paper. Specifically, during low-speed operation or stop operation of the fan 8, the fan has a small air suction volume, and the dusting effect is good at this time, and by enabling the dusting system to work in the second dusting strategy, each second on-off valve 12 is turned on at the same time after every third preset time interval, which can effectively increase the blowing frequency of the blowing pipe 10 compared to the first dusting strategy. Optionally, the third preset time is in seconds, and the fourth preset time is in milliseconds.

[0064] The control method of the embodiment can effectively increase the blowing frequency of the blowing pipe 10 relative to the first blowing strategy by causing the blowing dust system to work in the second blowing strategy, so that the filter cartridge is quickly restored to clean, thereby reducing energy consumption, improving dust removal efficiency and improving dust removal effect; stopping after blowing N times can avoid excessive blowing of the blowing pipe during rod replacement and rod removal, prolonging the service life of the filter cartridge.

[0065] Secondly, as shown in Figure 1 The present disclosure provides a control device for implementing the drilling machine dust removal system control method of the above-mentioned embodiment.

[0066] The control device of the embodiment determines the working condition according to different working mode information such as walking mode, drilling mode or rod replacement mode, and involves the control of the fan suction and pulse dust removal, and can control the fan suction and pulse dust removal in multiple modes according to the commonly used predetermined scheme, which can optimize the dust removal effect of the drilling machine dust removal system, and use reasonable control strategies according to different working conditions, thereby achieving the purpose of saving energy and reducing consumption.

[0067] Thirdly, as shown in Figure 1 and Figure 2 The present disclosure provides a drilling machine dust removal system comprising a fan suction system, a blowing dust system and the control device of the above-mentioned embodiment.

[0068] The drilling machine dust removal system of the embodiment determines the working condition according to different working mode information such as walking mode, drilling mode or rod replacement mode, and involves the control of the fan suction system and the pulse dust removal system, and can control the fan suction system and the pulse dust removal system in multiple modes according to the commonly used predetermined scheme, which has good dust removal effect, can optimize the dust removal effect, prolong the service life of the filter cartridge, use reasonable control strategies according to different working conditions, and achieve the purpose of energy saving and consumption reduction.

[0069] In some embodiments, as shown in Figure 1 and Figure 2 The drilling machine dust removal system further comprises:

[0070] The dust catching cover 1 is configured to catch the dust generated during the operation of the drill rod 3;

[0071] The cyclone separator 4 is arranged downstream of the dust catching cover 1 and is configured to preliminarily separate the dust in the dust-containing gas; and

[0072] The dust removal box 6 comprises a filter cartridge 7, a fan suction system and a blowing dust system, and the dust removal box 6 is configured to secondarily separate the dust in the dust-containing gas.

[0073] Specifically, the side wall and the bottom of the dust removal box 6 are respectively provided with a dust suction port and a dust discharge port, the dust suction port is connected to the cyclone separator 4 through the pipeline 5, and is used to receive the gas after preliminary separation by the cyclone separator 4; the fan 8 of the fan suction system is arranged at the top of the dust removal box 6, and is used to suck the dust-containing gas into the dust removal box 6; after filtration by the filter cartridge 7, the clean gas is discharged into the atmosphere; the high-pressure gas from the gas pocket 13 is sprayed to shake off the dust adsorbed on the filter cartridge 7 through the spray pipe 10, and more specifically, the spray pipe 10 sprays the high-pressure gas into the filter cartridge 7, so that the filter core produces sharp impact vibration and expansion, and the dust attached to the filter core is separated from the filter core to complete the dust removal.

[0074] The drilling machine dust removal system of the embodiment can optimize the dust removal effect, meet the dust removal needs of the drilling machine in various working modes, improve the drilling quality, and achieve energy saving and consumption reduction.

[0075] In addition, the present disclosure also provides a down-the-hole drill, which comprises the control device of the above embodiment or the drilling machine dust removal system of the above embodiment.

[0076] The down-the-hole drill of the embodiment can determine the working condition according to different working mode information such as the walking mode, the drilling mode or the rod changing mode, and simultaneously involves the control of the fan suction system and the pulse dust removal system, so that the dust removal effect can be optimized, the dust removal needs in various working modes can be met, the drilling quality can be improved, and energy saving and consumption reduction can be achieved.

[0077] In some embodiments, the control device described above can be a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof, which is used to perform the functions described in the present disclosure.

[0078] The above describes in detail the drilling machine dust removal system control method, the drilling machine dust removal system and the down-the-hole drill provided by the present disclosure. The principles and implementation manners of the present disclosure are described by using specific examples in this paper, and the above example description is only used to help understand the method of the present disclosure and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present disclosure without departing from the principles of the present disclosure, and these improvements and modifications also fall within the protection scope of the claims of the present disclosure.

Claims

1. A method for controlling a drilling rig dust removal system, characterized in that: include: Acquiring working mode information of the drilling rig, wherein the working mode information includes walking mode, drilling mode, and rod changing mode; Determine the working conditions of the fan suction system and the blowing and vibration dust system according to the working mode information; The fan suction system comprises a first on-off valve (11) and a fan (8), wherein the fan (8) is configured to suck dust-laden gas when the first on-off valve (11) is on so that dust is adsorbed on the filter cartridge (7); the dust-injection and vibration system comprises a second on-off valve (12) and a blow pipe (10), wherein the blow pipe (10) is configured to allow high-pressure gas to instantly enter the filter cartridge (7) when the second on-off valve (12) is on so that dust adsorbed on the filter cartridge (7) falls off; Wherein, when the drilling rig is in the drilling mode, the first on-off valve (11) is connected to enable the fan (8) to run at a high speed, and the blowing and dust-vibrating system to work in a first blowing strategy; when the drilling rig is in the rod-changing mode, the first on-off valve (11) is disconnected to enable the fan (8) to switch to a low speed or stop running, and the blowing and dust-vibrating system to work in a second blowing strategy, and the blowing frequency of the blowing pipe (10) in the second blowing strategy is higher than that in the first blowing strategy.

2. The drilling rig dust removal system control method according to claim 1, characterized in that: When the drilling rig is in the walking mode, the fan suction system and the blowing and dust vibration system are not working or stop after power-on self-test.

3. The drilling rig dust removal system control method according to claim 1, characterized in that: The blowing pipe (10) is provided with multiple paths, and each path of the blowing pipe (10) is provided with a second on-off valve (12). The first blowing strategy includes: The second on-off valves (12) of each route are connected in sequence after a first preset time interval, and each second on-off valve (12) controls the spray pipe (10) where it is located to spray for a second preset time, and the first preset time is greater than the second preset time.

4. The drilling rig dust removal system control method according to claim 1, characterized in that: The blowing pipe (10) is provided with multiple paths, and each path of the blowing pipe (10) is provided with a second on-off valve (12). The second blowing strategy includes: The second on-off valves (12) of each route are simultaneously connected after a third preset time interval, and the second on-off valves (12) of each route control the blowing pipe (10) to blow for a fourth preset time, and stop blowing after N times, and the third preset time is greater than the fourth preset time.

5. A control device, characterized in that: Used to implement the drilling rig dust removal system control method as described in any one of claims 1 to 4.

6. A drilling rig dust removal system, characterized in that: It includes the fan suction system, the blowing and dust vibration system and the control device according to claim 5.

7. The drilling rig dust removal system according to claim 6, characterized in that: Also includes: A dust collecting hood (1) is configured to collect dust generated during operation of the drill rod (3); a cyclone separator (4), disposed downstream of the dust collecting hood (1), configured to preliminarily separate dust from the dust-laden gas; and The dust removal box (6) comprises the filter cartridge (7), the fan suction system and the blowing and vibrating dust system, and the dust removal box (6) is configured to secondary separate dust from the dust-laden gas.

8. A down-the-hole drill, characterized in that: It includes the control device according to claim 5, or the drilling rig dust removal system according to claim 6 or 7.

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