Automatic dust suppressant spraying device for open-pit mine

Abstract

The application discloses an open-pit mine dust suppressant automatic spraying device, which comprises a spraying device and an extruding device. The spraying device comprises a spraying pipe. The extruding device comprises a driving extruding assembly and an auxiliary extruding assembly. The driving extruding assembly comprises a first driving mechanism, a first moving table, a second driving mechanism, a second moving table and a first extruding head. The first driving mechanism is arranged to extend along a first direction. The first moving table is drivingly connected with the first driving mechanism. The second driving mechanism is installed on the first moving table and supported by the first moving table. The second driving mechanism is arranged to extend along a second direction, and the second direction is staggered with the first direction. The second moving table is drivingly connected with the second driving mechanism. The first extruding head is installed on the second moving table. The auxiliary extruding assembly is arranged to be spaced apart from the driving extruding assembly along the second direction, and forms an extruding space of the spraying pipe. The dust suppressant automatic spraying device can solve the problem that the dust suppressant is left in the spraying pipe after spraying.

Description

Technical Field

[0001] This invention relates to the field of dust suppression technology, and in particular to an automatic dust suppression agent spraying device for open-pit mines. Background Technology

[0002] Eco-efficient dust suppressants are environmentally friendly functional materials, typically made from natural polymers or biodegradable polymers. They effectively prevent wind-driven dust by capturing, adsorbing, and solidifying dust particles to form a solidified film of sufficient strength on open dust-generating surfaces. Their mechanisms of action include wetting, coagulation, and crusting. They offer advantages such as ease of use, long dust suppression periods, no impact on crop growth, and biodegradability, making them widely applicable in construction sites, mines, road dust control, and ecological restoration in arid regions.

[0003] After the existing automatic dust suppressant spraying equipment in open-pit mines has finished spraying the dust suppressant, a lot of dust suppressant will remain in the spray pipe. If it is not cleaned in time, the residual dust suppressant will easily clog the spray pipe, affecting the subsequent use of the equipment. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an automatic dust suppressant spraying device for open-pit mines, which can solve the problem of dust suppressant residue remaining in the spraying pipe after the automatic dust suppressant spraying device has finished spraying.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An automatic dust suppressant spraying device for open-pit mines includes: a spraying device and a squeezing device;

[0007] The spraying device includes a spray pipe;

[0008] The extrusion device includes an active extrusion assembly and an auxiliary extrusion assembly. The active extrusion assembly includes a first drive mechanism, a first moving stage, a second drive mechanism, a second moving stage, and a first extrusion head. The first drive mechanism extends along a first direction. The first moving stage is drivenly connected to the first drive mechanism so that the first drive mechanism can drive the first moving stage to move along the first direction. The second drive mechanism is mounted on and supported by the first moving stage to follow the first moving stage. The second drive mechanism extends along a second direction, which intersects with the first direction. The second moving stage is drivenly connected to the second drive mechanism so that the second drive mechanism can drive the second moving stage to move along the second direction. The first extrusion head is mounted on the second moving stage and can follow the second moving stage to move along the second direction. The auxiliary extrusion assembly is spaced apart from the active extrusion assembly along the second direction, forming the extrusion space of the spray pipe, so that the active extrusion assembly and the auxiliary extrusion assembly can approach each other and extrude the spray pipe.

[0009] Furthermore, the automatic dust suppressant spraying device for open-pit mines also includes a clamping assembly located at the beginning of the extrusion path. The clamping assembly includes a support column and a gripper. The support column is connected to the gripper and supports the gripper. The gripper is used to clamp or release the spraying pipe.

[0010] Furthermore, the clamping assembly is equipped with a vibration device, which is connected to the gripper to drive the gripper to vibrate, thereby shaking off the dust suppressant residue adhering to the inner wall of the spray pipe.

[0011] Furthermore, the output end of the spray pipe is connected to a first valve; the automatic dust suppressant spraying device for open-pit mines includes a recovery device, which includes a first branch pipe and a waste liquid collection tank. The first branch pipe is connected to the spray pipe, and the connection end of the first branch pipe and the spray pipe is located between the first valve and the end of the extrusion path; the waste liquid collection tank has a collection chamber, and the waste liquid collection tank is connected to the first branch pipe; the collection chamber, the first branch pipe, and the spray pipe are connected in sequence; the first branch pipe is equipped with a second valve.

[0012] Furthermore, the automatic dust suppressant spraying device for open-pit mines also includes a liquid suction device. The spraying pipe, the liquid suction device, and the waste liquid collection tank are connected in sequence through the first branch pipe. The liquid suction device is used to provide liquid suction power.

[0013] Furthermore, the automatic dust suppressant spraying device for open-pit mines also includes an air pump and a third valve. The output end of the spray pipe is provided with a second branch pipe, and the air pump, the third valve, and the spray pipe are connected in sequence through the second branch pipe.

[0014] Furthermore, the first valve is a first check valve, and the flow direction of the first check valve is from the input end of the spray pipe to the output end of the spray pipe; the third valve is a second check valve, and the flow direction of the second check valve is from the pumping device to the second branch pipe.

[0015] Furthermore, the first extrusion head is connected to a limiting plate, defining a third direction that is perpendicular to the first direction. At least two limiting plates are provided, and the two limiting plates are spaced apart on opposite sides of the first extrusion head along the third direction. The two limiting plates are used to clamp the spray pipe.

[0016] Furthermore, the overall outer contour of the first extrusion head has a U-shaped structure.

[0017] Furthermore, the vibration device is a pneumatic vibrator.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. A first driving mechanism extends along a first direction; a first moving platform is driven to connect with the first driving mechanism so that the first driving mechanism can drive the first moving platform to move along the first direction; a second driving mechanism is mounted on and supported by the first moving platform to follow the first moving platform; the second driving mechanism extends along a second direction, which intersects with the first direction; the second moving platform is driven to connect with the second driving mechanism so that the second driving mechanism can drive the second moving platform to move along the second direction; a first extrusion head is mounted on the second moving platform and can follow the second moving platform to move along the second direction; an auxiliary extrusion assembly and an active extrusion assembly are spaced apart along the second direction to form a spray pipe extrusion space so that the active extrusion assembly and the auxiliary extrusion assembly can approach each other and extrude the spray pipe. The first drive mechanism moving along the first direction and the second drive mechanism moving along the second direction together constitute a two-dimensional motion system in a plane. Through the cooperation of the two drive mechanisms and the auxiliary extrusion assembly, the first extrusion head can be accurately positioned and the extrusion stroke can be controlled at any position of the spray pipe segment. This allows the entire extrusion system to perform multiple extrusions on the dust suppressant residue in a specific residual section of the spray pipe, or to achieve full-length and uniform extrusion from one end of the spray pipe to the other. This ensures that the dust suppressant residue in the spray pipe is completely squeezed out after the spray pipe is finished spraying, thus preventing the residual dust suppressant from clogging the spray pipe.

[0020] 2. By controlling the movement of the second drive mechanism in the second direction, the squeezing force of the first squeezing head can be precisely controlled, which can ensure the drainage effect while preventing overpressure damage to the spray pipe, thereby improving the service life of the spray pipe.

[0021] 3. Based on the mechanical extrusion device, which has a robust structure and strong power, it is unaffected by the chemical properties of the liquid and can effectively break down the adhesive properties of dust suppressants, even those with high viscosity and easy crystallization, thereby improving the extrusion effect of the extrusion device on the dust suppressant remaining in the spray pipe. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an automatic dust suppressant spraying device for open-pit mines according to the present invention;

[0023] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0024] In the diagram: 1. Spray pipe; 2. Extrusion device; 201. Active extrusion assembly; 2011. First drive mechanism; 2012. First moving platform; 2013. Second drive mechanism; 2014. Second moving platform; 2015. First extrusion head; 202. Auxiliary extrusion assembly; 3. Clamping assembly; 301. Support column; 302. Gripper; 303. Vibration device; 4. First valve; 5. Recovery device; 501. First branch pipe; 502. Waste liquid collection tank; 503. Second valve; 6. Liquid suction device; 7. Air pumping device; 8. Second branch pipe; 9. Limiting plate. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See Figures 1-2 An automatic dust suppressant spraying device for open-pit mines according to a preferred embodiment of the present invention includes: a spraying device and a squeezing device 2;

[0029] The spraying device includes a spray pipe 1; the spray pipe 1 is a fluid transport channel that transports the dust suppressant from the storage container to the end of the spray pipe 1; preferably, the spray pipe 1 can be made of a polymer material (such as polyurethane, nylon or rubber composite material) with certain elasticity and fatigue resistance properties, so as to cooperate with the subsequent squeezing and recovery of the dust suppressant residue in the spray pipe 1, and to ensure that the spray pipe 1 can still return to its original shape after being repeatedly squeezed, ensuring smooth flow and extending service life; the end of the spray pipe 1 can be connected to an atomizing nozzle to achieve efficient spraying of the dust suppressant, reduce the amount of dust suppressant residue in the spray pipe 1 after spraying, thereby improving the efficiency of cleaning the dust suppressant residue in the spray pipe 1.

[0030] The extrusion device 2 includes an active extrusion assembly 201 and an auxiliary extrusion assembly 202. The active extrusion assembly 201 includes a first drive mechanism 2011, a first moving stage 2012, a second drive mechanism 2013, a second moving stage 2014, and a first extrusion head 2015. The first drive mechanism 2011 extends along a first direction. The first moving stage 2012 is drivenly connected to the first drive mechanism 2011 so that the first drive mechanism 2011 can drive the first moving stage 2012 to move along the first direction. The second drive mechanism 2013 is mounted on and supported by the first moving stage 2012 to follow the first moving stage 2012. The second drive mechanism 2013 extends along a second direction, which intersects with the first direction. The second moving stage 2014 is drivenly connected to the second drive mechanism 2013 so that the second drive mechanism 2013 can drive the second moving stage 2014 to move along the second direction. The first extrusion head 2015 is mounted on the second moving stage 2014 and can follow the second moving stage 2014 to move along the second direction. The auxiliary extrusion assembly 202 and the active extrusion assembly 201 are arranged at intervals along the second direction and form an extrusion space for the spray pipe 1 so that the active extrusion assembly 201 and the auxiliary extrusion assembly 202 can approach each other and extrude the spray pipe 1. The first drive mechanism 2011 moving along the first direction and the second drive mechanism 2013 moving along the second direction together constitute a two-dimensional motion system in a plane. Through the cooperation of the two drive mechanisms and the auxiliary extrusion assembly 202, the first extrusion head 2015 is precisely positioned and the extrusion stroke is controllable at any position in the spray pipe 1. This allows the entire extrusion system to perform multiple extrusions on the dust suppressant residue in a specific section of the spray pipe 1, or to achieve full-length, uniform extrusion from one end of the spray pipe 1 to the other, so that after the spray pipe 1 is finished spraying, the residue in the spray pipe is completely squeezed out. The dust suppressant inside the spray pipe 1 is removed, thus preventing residual dust suppressant from clogging the spray pipe 1. Furthermore, by controlling the movement of the second drive mechanism 2013 in the second direction, the squeezing force of the first extrusion head 2015 can be precisely controlled, which can ensure the drainage effect while preventing overpressure damage to the spray pipe 1, thereby improving the service life of the spray pipe 1. At the same time, the mechanical extrusion device 2 has a robust structure and strong power, and is unaffected by the chemical properties of the liquid. It can also effectively break the adhesiveness of high-viscosity and easily crystallizing dust suppressants, thereby improving the extrusion effect of the extrusion device 2 on the residual dust suppressant inside the spray pipe 1.The first drive mechanism 2011 and the second drive mechanism 2013 can be either electric lead screw modules, which offer high precision and rigidity with good controllability, but are prone to damage in dusty environments like open-pit mines and require protective covers; alternatively, a rack and pinion mechanism can be used, which offers good environmental adaptability and a robust structure, but generates significant noise and vibration; or a precision linear drive device such as a linear motor can be employed, offering high precision and fast response, but at a high cost and with complex control; or other suitable drive mechanisms can be used, allowing the user to select the appropriate mechanism based on the specific circumstances. The auxiliary extrusion assembly 202 can be a fixed block with a shape adapted to the first extrusion head 2015, or a driven extrusion assembly with a structure symmetrical to the active extrusion assembly 201 and also possessing driving capabilities; the auxiliary extrusion assembly 202 only needs to be able to cooperate with the active extrusion assembly 201 to extrude the spray pipe 1.

[0031] When dust suppressant residue recovery is required, the present invention first activates the first drive mechanism 2011, driving the first moving platform 2012 and the first extrusion head 2015 carried by the first moving platform 2012 to move together along the first direction and position them at the starting position of the spray pipe 1 section to be extruded; then, the second drive mechanism 2013 is activated, driving the second moving platform 2014 and the first extrusion head 2015 to approach the spray pipe 1 along the second direction until they contact the spray pipe 1 and apply a preset pressure. At the same time, the auxiliary extrusion component 202 provides a reverse force during this process, forming a combined extrusion force with the active extrusion component 201; after that, the first drive mechanism 2011 is activated again, driving the first extrusion head 2015 to move a predetermined distance along the pipe axis, thereby completing one extrusion-type liquid discharge action; this process can be repeated to achieve the extrusion and emptying of the dust suppressant residue in the entire spray pipe 1 section.

[0032] The first drive mechanism 2011 extends along a first direction; the first moving stage 2012 is drivenly connected to the first drive mechanism 2011 so that the first drive mechanism 2011 can drive the first moving stage 2012 to move along the first direction; the second drive mechanism 2013 is installed on the first moving stage 2012 and supported by the first moving stage 2012 so as to follow the first moving stage 2012; the second drive mechanism 2013 extends along a second direction, which intersects with the first direction; the second moving stage 2014 is drivenly connected to the second drive mechanism 2013 so that the second drive mechanism 2013 can drive the second moving stage 2014 to move along the second direction; the first extrusion head 2015 is installed on the second moving stage 2014 and can follow the second moving stage 2014 to move along the second direction; the auxiliary extrusion assembly 202 and the active extrusion assembly 201 are spaced apart along the second direction and form an extrusion space for the spray pipe 1 so that the active extrusion assembly 201 and the auxiliary extrusion assembly 202 can approach each other and extrude the spray pipe 1. The first drive mechanism 2011 moving along the first direction and the second drive mechanism 2013 moving along the second direction together constitute a two-dimensional motion system in a plane. Through the cooperation of the two drive mechanisms and the auxiliary extrusion assembly 202, the first extrusion head 2015 is accurately positioned and the extrusion stroke is controllable at any position of the spray pipe 1. This allows the entire extrusion system to perform multiple extrusions on the dust suppressant residue in a specific residual section of the spray pipe 1, or to achieve full-length and uniform extrusion from one end of the spray pipe 1 to the other. Thus, after the spray pipe 1 is finished spraying, the dust suppressant remaining in the spray pipe 1 is completely squeezed out, thereby preventing the residual dust suppressant from clogging the spray pipe 1. By controlling the movement of the second drive mechanism 2013 in the second direction, the squeezing force of the first extrusion head 2015 can be precisely controlled, which can ensure the drainage effect while preventing overpressure damage to the spray pipe 1, thereby improving the service life of the spray pipe 1. Based on the mechanical extrusion device 2, the mechanical extrusion device 2 has a robust structure and strong power, and is not affected by the chemical properties of the liquid. It can also effectively break the adhesiveness of the dust suppressant, such as high viscosity and easy crystallization dust suppressant, thereby improving the extrusion effect of the extrusion device 2 on the dust suppressant remaining in the spray pipe 1.

[0033] Preferably, an automatic dust suppressant spraying device for open-pit mines further includes a clamping component 3. The clamping component 3 is located at the beginning of the extrusion path. The clamping component 3 includes a support column 301 and a gripper 302. The support column 301 is connected to the gripper 302 and supports the gripper 302. The gripper 302 is used to clamp or release the spray pipe 1. The clamping component 3, located at the beginning of the extrusion path, can clamp and fix the spray pipe 1 during the extrusion process of the extrusion device 2, thereby providing positioning and fixing functions. This ensures that the spray pipe 1 is stable in position when subjected to extrusion and will not shift, thus ensuring the reliability of the extrusion device 2 during the extrusion process and the accuracy when repeatedly extruding the spray pipe 1. If the clamping component 3 is not provided, the spray pipe 1 is likely to move with the extrusion device 2 when it extrudes the spray pipe 1, thereby reducing the extrusion effect and even causing the spray pipe 1 to be torn off, leading to safety problems. The gripper 302 can preferably be pneumatically or hydraulically driven, which is low-cost, fast-response, simple in structure, and easy to maintain, but has poor control accuracy and is noisier during operation. Alternatively, a motor-driven linkage gripper 302 can be used, which has high control accuracy and a compact structure, but has high maintenance costs and poor adaptability to harsh environments such as open-pit mines, requiring protective devices. Other suitable grippers 302 can also be used; the user can choose according to specific needs. The support column 301 can be fixedly installed on the frame or platform of the spraying vehicle, thus providing stable support.

[0034] Preferably, the clamping assembly 3 is equipped with a vibration device 303, which is connected to the gripper 302 to drive the gripper 302 to vibrate, thereby shaking off the residual dust suppressant liquid adhering to the inner wall of the spray pipe 1. The vibration device 303 integrated into the gripper 302 brings a synergistic enhancement effect. Under the condition of high viscosity dust suppressant, the residual liquid easily adheres to the pipe wall of the spray pipe 1, and it may be difficult to completely peel it off by mechanical extrusion alone. The high frequency and low amplitude vibration generated by the vibration device 303 is directly transmitted to the spray pipe 1 through the gripper 302, which can effectively destroy the surface tension and adhesion of the high viscosity dust suppressant to the pipe wall, making the adhered residual dust suppressant liquid easier to flow, thereby improving the effect of the subsequent extrusion device 2 in recovering the residual dust suppressant liquid. As an alternative, one or more vibration devices 303 can be independently installed at other locations on the spray pipe 1 to vibrate specific areas of the spray pipe 1 where dust suppressant is likely to remain, offering flexible layout. However, this requires additional mounting supports, wiring, and control points, and the efficiency of transferring vibration energy from the installation point to the entire pipeline is not as good as applying it directly at the gripper 302, resulting in poorer coordination with clamping and squeezing actions. Therefore, it is preferable to use a scheme where the vibration device 303 is connected to the gripper 302. The vibration device 303 can be specifically selected as a high-frequency vibration motor, which has a high energy conversion rate and high working efficiency, and is easy to install; a pneumatic vibrator can also be selected, which is well-suited for harsh environments with high dust levels, such as open-pit mines; or other suitable vibration devices 303 can be selected, allowing the user to choose according to their needs.

[0035] Preferably, the output end of the spray pipe 1 is connected to a first valve 4; an automatic dust suppressant spraying device for open-pit mines includes a recovery device 5, which includes a first branch pipe 501 and a waste liquid collection tank 502. The first branch pipe 501 is connected to the spray pipe 1, and the connection end of the first branch pipe 501 and the spray pipe 1 is located between the first valve 4 and the end of the extrusion path; the waste liquid collection tank 502 has a collection chamber and is connected to the first branch pipe 501; the collection chamber, the first branch pipe 501, and the spray pipe 1 are connected in sequence; the first branch pipe 501 is provided with a second valve 503. By working together, the dust suppressant residual liquid recovery path and the dust suppressant spraying path are physically isolated. The first valve 4, located at the output end of the spray pipe 1, is closed during the dust suppressant residual liquid recovery operation, separating the dust suppressant spraying path from the dust suppressant residual liquid recovery path and preventing the dust suppressant residual liquid from being sprayed out incorrectly. The first branch pipe 501 is connected to the end of the extrusion path, allowing the extruded dust suppressant residual liquid to flow into the waste liquid collection tank 502. The second valve 503 is used to control the opening and closing of the first branch pipe 501, ensuring that the dust suppressant residual liquid can only flow into the pre-set waste liquid collection tank 502, while avoiding pollution of the main spraying system by the recovered dust suppressant residual liquid. The first valve 4 can be a check valve, which has a simple structure and low cost, and can prevent contamination of the dust suppressant concentrate during dust suppressant residue recovery without additional mechanical structure; it can also be a ball valve, which has good sealing performance and rapid start and stop; or other suitable valves can be selected. The second valve 503 can be a butterfly valve, which has low cost and compact structure; or a solenoid valve, which has rapid response and simple control. Users can choose the valve according to the specific situation.

[0036] Preferably, an automatic dust suppressant spraying device for open-pit mines further includes a liquid suction device 6. The spray pipe 1, the liquid suction device 6, and the waste liquid collection tank 502 are sequentially connected through a first branch pipe 501. The liquid suction device 6 provides the suction power. By setting up the liquid suction device 6, a negative pressure suction force is provided to the first branch pipe 501, thereby forming a strong directional airflow in the pipeline. This airflow works in conjunction with the squeezing device 2 to ensure that even long-distance spray pipe 1 pipelines can be cleaned of residual dust suppressant liquid. The liquid suction device 6 can be a vacuum generator, which has a simple structure and strong environmental adaptability, suitable for dusty environments such as open-pit mines; it can also be a vacuum pump, which has stable performance and strong suction power; or other suitable liquid suction devices 6 can be selected, allowing the user to choose according to their needs.

[0037] Preferably, an automatic dust suppressant spraying device for open-pit mines further includes a pumping device 7 and a third valve. The third valve prevents dust suppressant and other pollutants from flowing back into the pumping device 7, thus avoiding damage to the pumping device 7. A second branch pipe 8 is provided at the output end of the spray pipe 1, and the pumping device 7, the third valve, and the spray pipe 1 are connected sequentially through the second branch pipe 8. The pumping device 7 is the power source for generating a positive airflow, which can complement the negative pressure suction force formed by the liquid suction device 6, forming a highly efficient pneumatic recovery mode of "push and pull," thereby improving the recovery speed and thoroughness of the dust suppressant residue. The third valve can be a one-way valve, which has a simple structure and can effectively prevent dust suppressant and other pollutants from flowing back into the pumping device 7; it can also be a ball valve, which has good flowability and high reliability; or a diaphragm valve, which has excellent anti-clogging performance and good sealing; or other suitable valves, which the user can choose according to their needs. The air pumping device 7 can be a manual air pump that is low in cost and simple in structure, but it depends on manpower and is inefficient; or an electric air pump that is highly efficient and adaptable to a wide range of scenarios, but has a more complex structure; or other suitable air pumping devices 7 can be selected.

[0038] Preferably, the first valve 4 is a first check valve, with the flow direction of the first check valve being from the input end of the spray pipe 1 to the output end of the spray pipe 1; the third valve is a second check valve, with the flow direction of the second check valve being from the pumping device 7 to the second branch pipe 8. Specificifying the first valve 4 and the third valve as check valves provides an energy-free and highly reliable backflow prevention solution; the first check valve allows the dust suppressant to pass through during normal spraying and automatically closes due to negative or reverse pressure when recovering residual dust suppressant, requiring no external control signal, simplifying the control system and improving reliability; the second check valve allows fluid introduced from the outside to pass through normally, but prevents the dust suppressant from accidentally flowing into the pumping device 7 during spraying, thereby avoiding contamination and damage to the pumping device 7.

[0039] Preferably, the first extrusion head 2015 is connected to a limiting plate 9, defining a third direction perpendicular to the first direction. At least two limiting plates 9 are provided, spaced apart along the third direction on opposite sides of the first extrusion head 2015. The two limiting plates 9 are used to clamp the spray pipe 1. When the active extrusion assembly 201 extrudes the spray pipe 1, the limiting plates 9 assist the first extrusion head 2015, preventing the spray pipe 1 from slipping during extrusion, thereby ensuring the reliability of the extrusion process.

[0040] Preferably, the overall outer contour of the first extrusion head 2015 is U-shaped. The U-shaped structure can preferably be a large-radius arc, or a combination of an arc and transitional slopes on both sides. Its shape matches the outer contour of the spray pipe 1 in its natural state, thus facilitating the extrusion head 2015 to extrude the spray pipe 1. The U-shaped structure of the first extrusion head 2015 provides a larger contact area with the outer wall of the spray pipe 1, distributing the extrusion pressure more evenly across the pipe surface. This effectively avoids localized stress concentration, reducing the risk of scratching or cutting the spray pipe 1, and extending its service life.

[0041] Preferably, the vibration device 303 is a pneumatic vibrator. Pneumatic vibrators are characterized by high power density, high frequency, compact structure, and durability, and can provide strong excitation force to effectively shake off adhering residual liquid. Their speed can be adjusted via a simple throttle valve, making control convenient.

[0042] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic dust suppressant spraying device for open-pit mines, characterized in that, include: A spraying device, the spraying device including a spray pipe (1); An extrusion device (2) includes an active extrusion assembly (201) and an auxiliary extrusion assembly (202). The active extrusion assembly (201) includes a first drive mechanism (2011), a first moving stage (2012), a second drive mechanism (2013), a second moving stage (2014), and a first extrusion head (2015). The first drive mechanism (2011) extends along a first direction. The first moving stage (2012) is drivenly connected to the first drive mechanism (2011) so that the first drive mechanism (2011) can drive the first moving stage (2012) to move along the first direction. The second drive mechanism (2013) is mounted on the first moving stage (2012) and supported by the first moving stage (2012) to follow the first moving stage (2012). The second drive mechanism (2013) extends along a second direction, which intersects with the first direction. The second moving platform (2014) is driven to connect with the second drive mechanism (2013), so that the second drive mechanism (2013) can drive the second moving platform (2014) to move along the second direction. The first extrusion head (2015) is mounted on the second moving platform (2014) and can follow the second moving platform (2014) to move along the second direction. The auxiliary extrusion assembly (202) and the active extrusion assembly (201) are spaced apart along the second direction and form the extrusion space of the spray pipe (1), so that the active extrusion assembly (201) and the auxiliary extrusion assembly (202) can approach each other and extrude the spray pipe (1). The output end of the spray pipe (1) is connected to a first valve (4); the automatic dust suppressant spraying device for open-pit mines includes a recovery device (5), the recovery device (5) includes a first branch pipe (501) and a waste liquid collection tank (502), the first branch pipe (501) is connected to the spray pipe (1), and the connection end of the first branch pipe (501) and the spray pipe (1) is located between the first valve (4) and the end of the extrusion path; the waste liquid collection tank (502) has a collection chamber, and the waste liquid collection tank (502) is connected to the first branch pipe (501); the collection chamber, the first branch pipe (501) and the spray pipe ( 1) Connected sequentially; the first branch pipe (501) is provided with a second valve (503); the automatic dust suppressant spraying device for open-pit mines also includes a liquid suction device (6), the spraying pipe (1), the liquid suction device (6), and the waste liquid collection box (502) are connected sequentially through the first branch pipe (501), and the liquid suction device (6) is used to provide liquid suction power; the automatic dust suppressant spraying device for open-pit mines also includes a pumping device (7) and a third valve, the output end of the spraying pipe (1) is provided with a second branch pipe (8), and the pumping device (7), the third valve, and the spraying pipe (1) are connected sequentially through the second branch pipe (8).

2. The automatic dust suppressant spraying device for open-pit mines according to claim 1, characterized in that, The automatic dust suppressant spraying device for open-pit mines also includes a clamping component (3), which is located at the beginning of the extrusion path. The clamping component (3) includes a support column (301) and a gripper (302). The support column (301) is connected to the gripper (302) and supports the gripper (302). The gripper (302) is used to clamp or release the spraying pipe (1).

3. The automatic dust suppressant spraying device for open-pit mines according to claim 2, characterized in that, The clamping assembly (3) is provided with a vibration device (303), which is connected to the gripper (302) to drive the gripper (302) to vibrate, thereby shaking off the dust suppressant residue attached to the inner wall of the spray pipe (1).

4. The automatic dust suppressant spraying device for open-pit mines according to claim 1, characterized in that, The first valve (4) is a first check valve, and the flow direction of the first check valve is from the input end of the spray pipe (1) to the output end of the spray pipe (1); the third valve is a second check valve, and the flow direction of the second check valve is from the air pump (7) to the second branch pipe (8).

5. An automatic dust suppressant spraying device for open-pit mines according to claim 1, characterized in that, The first extrusion head (2015) is connected to a limiting plate (9), defining a third direction that is perpendicular to the first direction. At least two limiting plates (9) are provided, and the two limiting plates (9) are spaced apart along the third direction on opposite sides of the first extrusion head (2015). The two limiting plates (9) are used to clamp the spray pipe (1).

6. An automatic dust suppressant spraying device for open-pit mines according to claim 1, characterized in that, The overall outer contour of the first extrusion head (2015) is U-shaped.

7. An automatic dust suppressant spraying device for open-pit mines according to claim 3, characterized in that, The vibration device (303) is a pneumatic vibrator.

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