Spraying system of mine sprinkler

Abstract

The utility model provides a spraying system of a mine sprinkler, which comprises an air reservoir, a lifting control valve, a power takeoff, a water tank and a spraying assembly, the spraying assembly comprises a spraying pump, a first pneumatic control valve and a pressure spraying assembly, the water tank is connected with a water inlet of the spraying pump, and a water outlet of the spraying pump is connected with the pressure spraying assembly through the first pneumatic control valve; the air storage cylinder is connected with the air inlet end of the lifting control valve, the air outlet end of the lifting control valve is connected with the control end of the power takeoff and the control end of the first pneumatic control valve, and the lifting control valve is used for controlling opening and closing of the power takeoff and opening and / or closing of the first pneumatic control valve. And the power takeoff is in transmission connection with the spraying pump. According to the spraying system of the mine sprinkler, an original lifting function assembly and an original gas circuit control assembly of a mine dump truck are transformed into the power system and the control system of the spraying assembly, the structure is simple and reliable, power consumption is small, the transformation cost and the operation and maintenance cost are saved, and the spraying system better fits the original operation habit of a driver.

Description

Technical Field

[0001] The utility model relates to the technical field of sprinkler trucks, in particular to a spraying system for mine sprinkler trucks. Background Technique

[0002] During the exploitation of open-pit mines, a large amount of dust will be raised when vehicles drive on the mine roads. The dust will not only affect the safe use of equipment but also pose a hazard to the physical health of personnel. To ensure the clean exploitation and green development of open-pit mines, mine sprinkler trucks are usually used to sprinkle water and reduce dust on the mine roads, thereby improving the production environment and working efficiency.

[0003] At present, some mine sprinkler trucks are transformed from old mine dump trucks. For example, a control system for a mine sprinkler truck disclosed in Patent CN205857112U is a transformation of an existing mine dump truck. The original hydraulic system of the mine dump truck is used to drive the spray pump, so that the water in the water tank is transported to the pneumatic control nozzle through the spray pump and sprayed out. However, the disadvantages of this control system for mine sprinkler trucks include: 1. Since it uses a hydraulic system as the power source of the spray pump, the structure and control method of the hydraulic system itself are relatively complex, and the power consumption of the hydraulic system is relatively large, resulting in a relatively complex structure of the refitted mine sprinkler truck, a relatively high refitting cost, and a relatively large power consumption; 2. It uses a large number of solenoid valves to control the on / off of the waterway / pneumatic circuit, resulting in a large number of control valve components, which not only increases the equipment cost, but also in the harsh working environment of the mining area, the failure rate of the solenoid valves is relatively high and they are prone to damage, thus increasing the operation and maintenance costs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a spraying system for mine sprinkler trucks, aiming to solve or at least partially solve the deficiencies existing in the above background technique. It transforms the original lifting function components and pneumatic circuit control components of the mine dump truck into the power system and control system of the spraying components, which is not only simple and reliable in structure, has relatively small power consumption, saves the refitting cost and operation and maintenance costs, but also is more in line with the original operation habits of the driver and is convenient to operate.

[0005] The utility model provides a spraying system for mine sprinkler trucks, which includes an air storage tank, a lifting control valve, a power take-off, a water tank and a spraying component. The spraying component includes a spray pump, a first pneumatic control valve and a pressurized spraying component. The water tank is connected to the water inlet of the spray pump, and the water outlet of the spray pump is connected to the pressurized spraying component through the first pneumatic control valve;

[0006] The air storage tank is connected to the intake end of the lift control valve. The outlet end of the lift control valve is connected to the control end of the power take-off and the control end of the first pneumatic control valve. The lift control valve is used to control the opening and closing of the power take-off and the opening and / or closing of the first pneumatic control valve. The power take-off is in transmission connection with the spray pump.

[0007] Further, the first outlet end of the lift control valve is simultaneously connected to the control end of the power take-off and the control end of the first pneumatic control valve, so as to be able to simultaneously control the power take-off and the first pneumatic control valve to open when the first outlet end of the lift control valve is opened.

[0008] Further, the first pneumatic control valve is a single-acting pneumatic control valve, and the control end of the first pneumatic control valve and the control end of the power take-off are both connected to the first outlet end of the lift control valve;

[0009] Or, the first pneumatic control valve is a double-acting pneumatic control valve. The opening control end of the first pneumatic control valve and the control end of the power take-off are both connected to the first outlet end of the lift control valve, and the shut-off control end of the first pneumatic control valve is connected to the second outlet end of the lift control valve.

[0010] Further, the first pneumatic control valve is a double-acting pneumatic control valve. The opening control end of the first pneumatic control valve and the control end of the power take-off are both connected to the first outlet end of the lift control valve, and the shut-off control end of the first pneumatic control valve is connected to the air storage tank through an electromagnetic valve.

[0011] Further, a power take-off switch is provided on the lift control valve, and the power take-off switch is used to control the opening and closing of the first outlet end of the lift control valve.

[0012] Further, the spray assembly further includes a second pneumatic control valve and a gravity sprinkling assembly. The water tank is connected to the gravity sprinkling assembly through the second pneumatic control valve. The outlet end of the lift control valve is further connected to the control end of the second pneumatic control valve, and the lift control valve is further used to control the opening and / or closing of the second pneumatic control valve.

[0013] Further, the control end of the second pneumatic control valve and the control end of the power take-off are respectively connected to different outlet ends on the lift control valve, and the control end of the second pneumatic control valve and the control end of the first pneumatic control valve are respectively connected to different outlet ends on the lift control valve.

[0014] Further, the second pneumatic control valve is a single-acting pneumatic control valve, and the control end of the second pneumatic control valve is connected to the third outlet end of the lift control valve;

[0015] Alternatively, the second pneumatically controlled valve is a double-acting pneumatically controlled valve. The shut-off control end of the second pneumatically controlled valve is connected to the second air outlet end of the lift control valve, and the opening control end of the second pneumatically controlled valve is connected to the third air outlet end of the lift control valve.

[0016] Further, the gravity sprinkling assembly includes a first sprinkler head and a first pipeline. The first sprinkler head is connected to the second pneumatically controlled valve through the first pipeline, and a first manual shut-off valve is provided on the first pipeline.

[0017] Further, the pressurized spray assembly includes:

[0018] A pressurized water spraying assembly, including a second sprinkler head and a second pipeline. The second sprinkler head is connected to the first pneumatically controlled valve through the second pipeline, and a second manual shut-off valve is provided on the second pipeline; and / or,

[0019] A dust suppression spray assembly, including an atomizing sprinkler head and a third pipeline. The atomizing sprinkler head is connected to the first pneumatically controlled valve through the third pipeline, and a third manual shut-off valve is provided on the third pipeline; and / or,

[0020] A fire fighting assembly, including a fire fighting water cannon and a fourth pipeline. The fire fighting water cannon is connected to the first pneumatically controlled valve through the fourth pipeline, and a fourth manual shut-off valve is provided on the fourth pipeline.

[0021] The spray system for a mining water truck provided by the present utility model uses a power take-off to provide power for a spray pump, and uses a lift control valve to control the opening and closing of the first pneumatically controlled valve and the power take-off, so as to realize the opening and closing of the pressurized spray assembly. This spray system for a mining water truck is based on a mining dump truck, and transforms the original lifting function assembly and pneumatic control assembly into a power system and a control system of the spray assembly. It is not only simple and reliable in structure, has low power consumption, saves the modification cost and operation and maintenance cost, but also is more in line with the original operating habits of the driver and is convenient to operate. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a spray system for a mining water truck in an embodiment of the present utility model.

[0023] Figure 2 It is a schematic structural diagram of a spray system for a mining water truck in another embodiment of the present utility model.

[0024] Figure 3 It is a schematic structural diagram of a spray system for a mining water truck in another embodiment of the present utility model.

[0025] Figure 4 It is a schematic structural diagram of a spray system for a mining water truck in another embodiment of the present utility model. Detailed Description of the Embodiment

[0026] The specific implementation manners of the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0027] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present utility model are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.

[0028] The orientation terms such as up, down, left, right, front, back, top, bottom, etc. (if any) involved in the description and claims of the present utility model are defined based on the positions of the structures in the accompanying drawings and the positions relative to each other, only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of orientation terms should not limit the scope of protection claimed in this application.

[0029] Figure 1 It is a schematic structural diagram of the spray system of the mine sprinkler truck in the embodiment of the present utility model; in order to facilitate the distinction between the water circuit and the air circuit, Figure 1 relatively thick lines are used to represent the water circuit, and relatively thin lines are used to represent the air circuit in. As Figure 1 shown, the spray system of the mine sprinkler truck provided by the embodiment of the present utility model includes an air storage cylinder 1, a lifting control valve 3 (i.e., a lifting handle), a power take-off 4, a water tank 5, and a spray assembly 6. The spray assembly 6 includes a spray pump 61, a first pneumatic control valve 62, and a pressurized spray assembly 63. The water tank 5 is connected to the water inlet of the spray pump 61, and the water outlet of the spray pump 61 is connected to the pressurized spray assembly 63 through the first pneumatic control valve 62.

[0030] The air storage cylinder 1 is connected to the intake end of the lifting control valve 3. The outlet end of the lifting control valve 3 is connected to the control end (i.e., the pneumatic control interface) of the power take-off 4 and the control end of the first pneumatic control valve 62. The lifting control valve 3 is used to control the opening and closing of the power take-off 4 and the opening and / or closing of the first pneumatic control valve 62. The power take-off 4 is drivingly connected to the spray pump 61.

[0031] Specifically, the air storage cylinder 1, the lifting control valve 3, and the power take-off 4 are original components on the mine dump truck. Among them, the power take-off 4 was originally drivingly connected to a lifting pump (i.e., a hydraulic pump). The power take-off 4 is used to transmit the power of the engine to the lifting pump. After the lifting pump operates, the hydraulic oil in the fuel tank is pumped to the hydraulic cylinder to realize the lifting and lowering of the mine dump truck; the lifting control valve 3 was originally connected to components such as the air storage cylinder 1, the power take-off 4, the lifting valve, and the limit valve to control the lifting and lowering operations of the mine dump truck through air pressure. For the specific structures and principles of the existing lifting function components and air circuit control components of the mine dump truck, reference can be made to the prior art (such as patents CN215475061U, CN114132243B, etc.), which will not be elaborated here.

[0032] The spray system for a mining sprinkler provided in this embodiment is based on a mining dump truck, and the original lifting function component and the air circuit control component are transformed into the power system and control system of the spray component 6. In this embodiment, the original lifting pump is replaced by the spray pump 61, that is, the power take-off 4 is connected to the spray pump 61 by transmission (specifically, the power take-off 4 and the spray pump 61 are connected by a transmission shaft), and the power take-off 4 is used to transmit the power of the engine to the spray pump 61, thereby providing power for the operation of the spray pump 61; at the same time, the lifting control valve 3 is connected to the control end of the power take-off 4 and the control end of the first air control valve 62, and the lifting control valve 3 is used to control the opening and closing of the power take-off 4 and the first air control valve 62 (the power take-off 4 is an air-controlled power take-off), thereby controlling the opening and closing of the pressurized spray component 63. The spraying system of the mining sprinkler truck makes full use of the structure of the original mining dump truck, has fewer additional components, and uses air pressure to control the opening and closing of the spraying system. It is not only simple and reliable in structure, but also has low power consumption, saving modification costs and operation and maintenance costs, but also more in line with the driver's original operating habits (the driver originally controlled the lifting and lowering of the mining dump truck through the lifting control valve 3, and now controls the opening and closing of the spraying system through the lifting control valve 3. There is no need to set up a new control device to control the spraying system, so the driver does not need to make major changes in his operating habits), and is easy to operate.

[0033] Specifically, after the power take-off 4 and the first air control valve 62 are opened, the power take-off 4 drives the spray pump 61 to operate, and the spray pump 61 pressurizes the water in the water tank 5 and pumps it to the pressurized spray assembly 63, and the water is sprayed out through the pressurized spray assembly 63, thereby realizing the pressurized spraying function of the spraying system of the mine sprinkler truck.

[0034] Furthermore, if Figure 1 As shown, in this embodiment, the spray assembly 6 also includes a second air-controlled valve 64 and a self-flowing sprinkler assembly 65, and the water tank 5 is connected to the self-flowing sprinkler assembly 65 through the second air-controlled valve 64; the air outlet end of the lifting control valve 3 is also connected to the control end of the second air-controlled valve 64, and the lifting control valve 3 is also used to control the opening and / or closing of the second air-controlled valve 64.

[0035] Specifically, after the second air-controlled valve 64 is opened, relying on the pressure difference between the liquid level in the water tank 5 and the water outlet of the gravity-flowing sprinkler assembly 65 (i.e. utilizing the liquid siphon gravity principle), the water in the water tank 5 is sprinkled through the gravity-flowing sprinkler assembly 65, thereby realizing the gravity-flowing sprinkler function of the mine sprinkler truck spray system.

[0036] Furthermore, if Figure 1 As shown, in this embodiment, the lift control valve 3 is used to control the opening of the first gas control valve 62. Of course, in other embodiments, the lift control valve 3 can also be used only to control the closing of the first gas control valve 62, or to control the opening and closing of the first gas control valve 62 at the same time.

[0037] The lifting control valve 3 is used to control the opening and closing of the second pneumatic control valve 64. Of course, in other embodiments, the lifting control valve 3 can also be only used to control the opening of the second pneumatic control valve 64, or only used to control the closing of the second pneumatic control valve 64.

[0038] Furthermore, as Figure 1 shown, in this embodiment, the first air outlet end 31 of the lifting control valve 3 is connected to the control end of the power take-off 4 and the control end of the first pneumatic control valve 62 at the same time, so that when the first air outlet end 31 of the lifting control valve 3 is opened, the power take-off 4 and the first pneumatic control valve 62 can be controlled to open at the same time.

[0039] Specifically, when the power take-off 4 is opened, the power take-off 4 drives the spray pump 61 to operate. If the first pneumatic control valve 62 is not opened at this time, it will cause the spray pump 61 to be damaged due to pressure buildup; therefore, in this embodiment, the control end of the power take-off 4 and the control end of the first pneumatic control valve 62 are connected to the first air outlet end 31 of the lifting control valve 3 at the same time. After the lifting control valve 3 opens its first air outlet end 31, both the power take-off 4 and the first pneumatic control valve 62 can be opened, so as to ensure that the first pneumatic control valve 62 must be in the open state when the spray pump 61 is operating (at the same time, at least one path in the pressurized spray assembly 63 also needs to be in the open state), avoiding damage to the spray pump 61 due to pressure buildup. Of course, in other embodiments, the control end of the power take-off 4 and the control end of the first pneumatic control valve 62 can also be connected to different air outlet ends on the lifting control valve 3. At this time, the power take-off 4 and the first pneumatic control valve 62 need to be opened separately; but at this time, attention needs to be paid during operation. Generally, the first pneumatic control valve 62 should be opened first, and then the power take-off 4.

[0040] Furthermore, as Figure 1 shown, in this embodiment, the control end of the second pneumatic control valve 64 and the control end of the power take-off 4 are respectively connected to different air outlet ends on the lifting control valve 3, so that the second pneumatic control valve 64 and the power take-off 4 can be controlled separately without interference. The control end of the second pneumatic control valve 64 and the control end of the first pneumatic control valve 62 are respectively connected to different air outlet ends on the lifting control valve 3, so that the second pneumatic control valve 64 and the first pneumatic control valve 62 can be controlled separately without interference, and further enabling the spray system of the mining water sprinkler to perform gravity sprinkling and pressurized spraying separately (for example, when performing separate gravity sprinkling, there is no need to open the power take-off 4 and the first pneumatic control valve 62).

[0041] Furthermore, as Figure 1As shown, in this embodiment, the first pneumatic control valve 62 is a double-acting pneumatic control valve. Specifically, the double-acting pneumatic control valve has two control ends, namely an opening control end and a shut-off control end; when compressed gas enters the double-acting pneumatic control valve through the opening control end, the double-acting pneumatic control valve opens; when compressed gas enters the double-acting pneumatic control valve through the shut-off control end, the double-acting pneumatic control valve closes (that is, the double-acting pneumatic control valve uses compressed gas in two opposite directions to control the opening and closing of the valve. The specific structure and principle of the double-acting pneumatic control valve can refer to the prior art and will not be elaborated here). The opening control end of the first pneumatic control valve 62 and the control end of the power take-off 4 are both connected to the first air outlet end 31 of the lifting control valve 3, and the shut-off control end of the first pneumatic control valve 62 is connected to the air storage tank 1 through the solenoid valve 7, and the solenoid valve 7 is used to conduct or disconnect the air circuit between the air storage tank 1 and the shut-off control end of the first pneumatic control valve 62).

[0042] Specifically, in this embodiment, the lifting control valve 3 is used to control the opening of the first pneumatic control valve 62, and the solenoid valve 7 is used to control the closing of the first pneumatic control valve 62. When the first air outlet end 31 of the lifting control valve 3 is opened (the solenoid valve 7 is in the closed state), the compressed gas in the air storage tank 1 passes through the first air outlet end 31 of the lifting control valve 3 and then enters the first pneumatic control valve 62 through the opening control end of the first pneumatic control valve 62, causing the first pneumatic control valve 62 to open; when the solenoid valve 7 is opened (the first air outlet end 31 of the lifting control valve 3 is closed), the compressed gas in the air storage tank 1 passes through the solenoid valve 7 and then enters the first pneumatic control valve 62 through the shut-off control end of the first pneumatic control valve 62, causing the first pneumatic control valve 62 to close.

[0043] Furthermore, in this embodiment, a solenoid valve switch (not shown in the figure. The solenoid valve switch is, for example, a rocker switch) is provided in the cab of the mining water truck, and the solenoid valve switch is connected to the solenoid valve 7, and the solenoid valve switch is used to control the opening and closing of the solenoid valve 7.

[0044] Furthermore, as Figure 1 shown, in this embodiment, the first air outlet end 31 of the lifting control valve 3 is respectively connected to the control end of the power take-off 4 and the opening control end of the first pneumatic control valve 62 through a tee joint 8.

[0045] Furthermore, as Figure 1 shown, in this embodiment, the mining water truck spraying system further includes a multi-way valve 2, and the multi-way valve 2 is an original component of the mining dump truck. The air storage tank 1 is connected to the intake end of the multi-way valve 2, one air outlet end of the multi-way valve 2 is connected to the intake end of the lifting control valve 3, and the other air outlet end of the multi-way valve 2 is connected to the shut-off control end of the first pneumatic control valve 62 through the solenoid valve 7.

[0046] Furthermore, as Figure 1As shown, in this embodiment, the sprinkler system for a mining sprinkler truck further includes a transition block 9, the first air outlet end 31 of the lifting control valve 3 is connected to the opening control end of the first air control valve 62 through the transition block 9, and the solenoid valve 7 is connected to the closing control end of the first air control valve 62 through the transition block 9. The transition block 9 can not only fix the tube bundle, but also serve as a joint converter. Because the specifications of the gas circuit joints are different, by setting the transition block 9, the use of new specifications of joints can be allowed without changing the original gas circuit joints.

[0047] Furthermore, if Figure 1 As shown, in this embodiment, the second air-controlled valve 64 is a double-acting air-controlled valve, the shutoff control end of the second air-controlled valve 64 is connected to the second air outlet end 32 of the lift control valve 3, and the opening control end of the second air-controlled valve 64 is connected to the third air outlet end 33 of the lift control valve 3.

[0048] Specifically, when the third air outlet end 33 of the lift control valve 3 is opened (the second air outlet end 32 is in a closed state), the compressed gas in the air cylinder 1 passes through the third air outlet end 33 of the lift control valve 3, and then enters the second air control valve 64 through the opening control end of the second air control valve 64, so that the second air control valve 64 is opened; when the second air outlet end 32 of the lift control valve 3 is opened (the third air outlet end 33 is in a closed state), the compressed gas in the air cylinder 1 passes through the second air outlet end 32 of the lift control valve 3, and then enters the second air control valve 64 through the closing control end of the second air control valve 64, so that the second air control valve 64 is closed.

[0049] Furthermore, in the present embodiment, a power take-off switch (not shown) is provided on the lifting control valve 3, and the power take-off switch is used to control the opening and closing of the first air outlet end 31 of the lifting control valve 3, thereby controlling the opening and closing of the power take-off 4 and the opening of the first air control valve 62. A control handle (not shown) is provided on the lifting control valve 3, and the control handle is used to control the opening and closing of the second air outlet end 32 and the third air outlet end 33 of the lifting control valve 3, thereby controlling the opening and closing of the second air control valve 64. Such a setting can make the control mode of the spray system of the mining sprinkler truck closer to the operation mode of the original mining dump truck, and facilitate operation. For the specific structure and principle of the lifting control valve 3, please refer to the prior art, which will not be repeated here.

[0050] Specifically, in this embodiment, the second air outlet end 32 corresponds to the original lifting position of the control handle, and the third air outlet end 33 corresponds to the original lowering position of the control handle; that is, when the control handle is pushed to the lowering position, the third air outlet end 33 of the lifting control valve 3 opens, the second air outlet end 32 closes, and the second pneumatic control valve 64 opens; that is, when the control handle is pushed to the lifting position, the second air outlet end 32 of the lifting control valve 3 opens, the third air outlet end 33 closes, and the second pneumatic control valve 64 closes. Of course, in other embodiments, the second air outlet end 32 can also correspond to the lowering position of the control handle, and the third air outlet end 33 can also correspond to the lifting position of the control handle. The specific setting method can be determined according to the operator's habit.

[0051] Since both the first pneumatic control valve 62 and the second pneumatic control valve 64 in this embodiment adopt double-acting pneumatic control valves, a total of four air ports are required to control the opening and closing of the first pneumatic control valve 62 and the second pneumatic control valve 64; while a conventional lifting control valve 3 generally only has three air outlet ends, so an electromagnetic valve 7 is additionally provided in this embodiment to control the closing of the first pneumatic control valve 62.

[0052] As Figure 2 shown, in another embodiment, the second pneumatic control valve 64 is a single-acting pneumatic control valve, and the control end of the second pneumatic control valve 64 is connected to the third air outlet end 33 of the lifting control valve 3; specifically, a single-acting pneumatic control valve has only one control end. A single-acting pneumatic control valve is driven to open by compressed gas in one direction, and the closing of the valve is completed by components such as a spring inside the single-acting pneumatic control valve (the specific structure and principle of the single-acting pneumatic control valve can refer to the prior art and will not be elaborated here). The first pneumatic control valve 62 is a double-acting pneumatic control valve. The opening control end of the first pneumatic control valve 62 and the control end of the power take-off 4 are both connected to the first air outlet end 31 of the lifting control valve 3, and the cut-off control end of the first pneumatic control valve 62 is connected to the second air outlet end 32 of the lifting control valve 3.

[0053] Specifically, when the third air outlet end 33 of the lifting control valve 3 is opened, the second pneumatic control valve 64 opens; when the third air outlet end 33 of the lifting control valve 3 is closed, the second pneumatic control valve 64 closes. When the first air outlet end 31 of the lifting control valve 3 is opened and the second air outlet end 32 of the lifting control valve 3 is closed, the first pneumatic control valve 62 opens; when the first air outlet end 31 of the lifting control valve 3 is closed and the second air outlet end 32 of the lifting control valve 3 is opened, the first pneumatic control valve 62 closes. With such a setting, since the second pneumatic control valve 64 adopts a single-acting pneumatic control valve and only needs one air port to control the opening and closing of the valve, the three air outlet ends on the lifting control valve 3 can meet the requirements, and there is no need to additionally set an electromagnetic valve 7 to control the closing of the first pneumatic control valve 62.

[0054] As Figure 3As shown, in another embodiment, the first pneumatic control valve 62 is a single-acting pneumatic control valve, and the control end of the first pneumatic control valve 62 and the control end of the power take-off 4 are both connected to the first air outlet end 31 of the lift control valve 3. The second pneumatic control valve 64 is a double-acting pneumatic control valve. The shut-off control end of the second pneumatic control valve 64 is connected to the second air outlet end 32 of the lift control valve 3, and the opening control end of the second pneumatic control valve 64 is connected to the third air outlet end 33 of the lift control valve 3.

[0055] Specifically, when the first air outlet end 31 of the lift control valve 3 is opened, the first pneumatic control valve 62 opens; when the first air outlet end 31 of the lift control valve 3 is closed, the first pneumatic control valve 62 closes. When the third air outlet end 33 of the lift control valve 3 is opened and the second air outlet end 32 of the lift control valve 3 is closed, the second pneumatic control valve 64 opens; when the third air outlet end 33 of the lift control valve 3 is closed and the second air outlet end 32 of the lift control valve 3 is opened, the second pneumatic control valve 64 closes. With such a setting, since the first pneumatic control valve 62 is a single-acting pneumatic control valve and it only requires one air port to control the opening and closing of the valve, the three air outlet ends on the lift control valve 3 can meet the requirements, and there is no need to additionally set up the solenoid valve 7.

[0056] As Figure 4 shown, in another embodiment, the first pneumatic control valve 62 is a single-acting pneumatic control valve, and the control end of the first pneumatic control valve 62 and the control end of the power take-off 4 are both connected to the first air outlet end 31 of the lift control valve 3. The second pneumatic control valve 64 is a single-acting pneumatic control valve, and the control end of the second pneumatic control valve 64 is connected to the third air outlet end 33 of the lift control valve 3.

[0057] Specifically, when the first air outlet end 31 of the lift control valve 3 is opened, the first pneumatic control valve 62 opens; when the first air outlet end 31 of the lift control valve 3 is closed, the first pneumatic control valve 62 closes. When the third air outlet end 33 of the lift control valve 3 is opened, the second pneumatic control valve 64 opens; when the third air outlet end 33 of the lift control valve 3 is closed, the second pneumatic control valve 64 closes. With such a setting, since both the first pneumatic control valve 62 and the second pneumatic control valve 64 are single-acting pneumatic control valves and each only requires one air port to control the opening and closing of the valve, the three air outlet ends on the lift control valve 3 can meet the requirements (one air outlet end on the lift control valve 3 is still unused), and there is no need to additionally set up the solenoid valve 7.

[0058] Furthermore, as Figure 1As shown in the figure, in this embodiment, the gravity sprinkling assembly 65 includes a first sprinkler head 651 and a first pipeline 652. The first sprinkler head 651 is connected to the second pneumatic control valve 64 through the first pipeline 652, and a first manual switch valve 653 is provided on the first pipeline 652. When both the first manual switch valve 653 and the second pneumatic control valve 64 are opened, the water in the water tank 5 can flow through the first pipeline 652 and be sprinkled by the first sprinkler head 651. The gravity sprinkling assembly 65 can be arranged at the front and / or rear of the mining sprinkler truck.

[0059] Furthermore, as Figure 1 shown in the figure, in this embodiment, the pressurized spraying assembly 63 includes a pressurized water spraying assembly 63A. The pressurized water spraying assembly 63A includes a second sprinkler head 631 and a second pipeline 632. The second sprinkler head 631 is connected to the first pneumatic control valve 62 through the second pipeline 632, and a second manual switch valve 633 is provided on the second pipeline 632. When the power take-off 4, the first pneumatic control valve 62, and the second manual switch valve 633 are all opened, the water in the water tank 5 can be pressurized by the spray pump 61 and sprayed out through the second sprinkler head 631. The pressurized water spraying assembly 63A can be arranged at the front and / or rear of the mining sprinkler truck.

[0060] Furthermore, as Figure 1 shown in the figure, in this embodiment, the pressurized spraying assembly 63 further includes a dust suppression spraying assembly 63B. The dust suppression spraying assembly 63B includes an atomizing sprinkler head 634 and a third pipeline 635. The atomizing sprinkler head 634 is connected to the first pneumatic control valve 62 through the third pipeline 635, and a third manual switch valve 636 is provided on the third pipeline 635. When the power take-off 4, the first pneumatic control valve 62, and the third manual switch valve 636 are all opened, the water in the water tank 5 can be pressurized by the spray pump 61 and sprayed out through the atomizing sprinkler head 634. The dust suppression spraying assembly 63B can be arranged at the front and / or rear of the mining sprinkler truck. Among them, the atomizing sprinkler head 634 and the second sprinkler head 631 are different types of sprinkler heads. The atomizing sprinkler head 634 sprays water in an atomized state, and the second sprinkler head 631 sprays water in the form of water flow / small droplets.

[0061] Furthermore, as Figure 1 shown in the figure, in this embodiment, the pressurized spraying assembly 63 further includes a fire fighting assembly 63C. The fire fighting assembly 63C includes a fire fighting water cannon 637 and a fourth pipeline 638. The fire fighting water cannon 637 is connected to the first pneumatic control valve 62 through the fourth pipeline 638, and a fourth manual switch valve 639 is provided on the fourth pipeline 638. When the power take-off 4, the first pneumatic control valve 62, and the fourth manual switch valve 639 are all opened, the water in the water tank 5 can be pressurized by the spray pump 61 and sprayed out through the fire fighting water cannon 637. The fire fighting assembly 63C is generally arranged at the rear of the mining sprinkler truck.

[0062] Further, in this embodiment, the first manual shut-off valve 653, the second manual shut-off valve 633, the third manual shut-off valve 636, and the fourth manual shut-off valve 639 are all manual ball valves.

[0063] This embodiment also provides a mine sprinkler truck, including the above-mentioned mine sprinkler truck spraying system.

[0064] Further, as Figure 1 shown, in this embodiment, the working process of the mine sprinkler truck spraying system is as follows:

[0065] (1) When the mine sprinkler truck is performing gravity sprinkling, open the first manual shut-off valve 653, push the control handle on the lifting control valve 3 from the initial position to the lowering position. The compressed gas in the air storage tank 1 enters the second pneumatic control valve 64 through the third air outlet 33 of the lifting control valve 3, causing the second pneumatic control valve 64 to open. At this time, the water in the water tank 5 can be gravity-sprinkled through the gravity sprinkling assembly 65.

[0066] After the gravity sprinkling is completed, push the control handle on the lifting control valve 3 to the lifting position and stay for 3 - 5 seconds (so that the compressed gas can drive the second pneumatic control valve 64 to close completely). The compressed gas in the air storage tank 1 enters the second pneumatic control valve 64 through the second air outlet 32 of the lifting control valve 3, causing the second pneumatic control valve 64 to close. Then release the control handle to make it automatically return to the middle position, and the gravity sprinkling is turned off.

[0067] (2) When the mine sprinkler truck is performing pressurized spraying, open at least one manual shut-off valve in the pressurized spraying assembly 63, and then turn on the power take-off switch on the lifting control valve 3 to open the first air outlet 31 of the lifting control valve 3. At this time, after the compressed gas in the air storage tank 1 passes through the first air outlet 31 of the lifting control valve 3, it is divided into two paths through the three-way joint 8. One path enters the power take-off 4 to open the power take-off 4, and the other path enters the first pneumatic control valve 62 through the transition block 9 to open the first pneumatic control valve 62; after the power take-off 4 is opened, it drives the spray pump 61 to operate, and the water in the water tank 5 can be sprayed out through the spray pump 61 after being pressurized by the pressurized spraying assembly 63.

[0068] After the pressurized spraying is completed, turn off the power take-off switch on the lifting control valve 3 to close the first air outlet 31 of the lifting control valve 3, thereby closing the power take-off 4; and turn on the solenoid valve switch in the cab to energize and open the solenoid valve 7. At this time, the compressed gas in the air storage tank 1 enters the first pneumatic control valve 62 through the solenoid valve 7 and the transition block 9 to close the first pneumatic control valve 62, and the pressurized spraying stops.

[0069] The advantages of the mine sprinkler truck spraying system provided in this embodiment include:

[0070] (1) The spray system of this mine water sprinkler makes full use of the structure of the original mine dump truck, transforms the original lifting function components and pneumatic control components into the power system and control system of the spray component 6. There are fewer additional components. The opening and closing of the spray system is controlled by air pressure. It is not only simple and reliable in structure, consumes less power, saves the refitting cost and operation and maintenance cost, but also better conforms to the original operation habits of the driver and is convenient to operate.

[0071] (2) The number of control valve elements is small, and a pneumatic valve with relatively high reliability is used for control. At the same time, the nozzle is controlled by a hand valve, with fewer failure rates and is more suitable for the complex working environment in the mining area.

[0072] As mentioned above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art in the technical field disclosed by the present utility model can easily think of changes or substitutions within the technical scope disclosed by the present utility model, and all of them should be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims described.

Claims

1. A sprinkler system for a mining sprinkler, characterized in that: It comprises an air storage cylinder (1), a lifting control valve (3), a power take-off (4), a water tank (5) and a spray assembly (6), wherein the spray assembly (6) comprises a spray pump (61), a first air control valve (62) and a pressurized spray assembly (63), the water tank (5) is connected to the water inlet of the spray pump (61), and the water outlet of the spray pump (61) is connected to the pressurized spray assembly (63) via the first air control valve (62); The air storage cylinder (1) is connected to the air inlet end of the lifting control valve (3), and the air outlet end of the lifting control valve (3) is connected to the control end of the power take-off (4) and the control end of the first air control valve (62). The lifting control valve (3) is used to control the opening and closing of the power take-off (4) and the opening and / or closing of the first air control valve (62); the power take-off (4) is transmission-connected to the spray pump (61).

2. The sprinkler system for a mine sprinkler as claimed in claim 1, characterized in that: The first air outlet end (31) of the lifting control valve (3) is simultaneously connected to the control end of the power take-off (4) and the control end of the first air control valve (62), so that when the first air outlet end (31) of the lifting control valve (3) is opened, the power take-off (4) and the first air control valve (62) can be simultaneously controlled to open.

3. The mine sprinkler system as claimed in claim 2, characterized in that: The first air-controlled valve (62) is a single-acting air-controlled valve, and the control end of the first air-controlled valve (62) and the control end of the power take-off (4) are both connected to the first air outlet end (31) of the lifting control valve (3); Alternatively, the first air-controlled valve (62) is a double-acting air-controlled valve, wherein the opening control end of the first air-controlled valve (62) and the control end of the power take-off (4) are both connected to the first air outlet end (31) of the lifting control valve (3), and the closing control end of the first air-controlled valve (62) is connected to the second air outlet end (32) of the lifting control valve (3).

4. The mining sprinkler system as claimed in claim 2, characterized in that: The first air-controlled valve (62) is a double-acting air-controlled valve, wherein the opening control end of the first air-controlled valve (62) and the control end of the power take-off (4) are both connected to the first air outlet end (31) of the lifting control valve (3), and the closing control end of the first air-controlled valve (62) is connected to the air storage cylinder (1) via a solenoid valve (7).

5. The mine sprinkler system as claimed in claim 2, characterized in that: The lift control valve (3) is provided with a power take-off switch, and the power take-off switch is used to control the opening and closing of the first air outlet end (31) of the lift control valve (3).

6. The spray system for a mining sprinkler as claimed in claim 1, characterized in that: The spray assembly (6) further comprises a second air-controlled valve (64) and a self-flowing sprinkler assembly (65); the water tank (5) is connected to the self-flowing sprinkler assembly (65) via the second air-controlled valve (64); the air outlet end of the lift control valve (3) is also connected to the control end of the second air-controlled valve (64); the lift control valve (3) is also used to control the opening and / or closing of the second air-controlled valve (64).

7. The spray system for a mining sprinkler as claimed in claim 6, characterized in that: The control end of the second air control valve (64) and the control end of the power take-off (4) are respectively connected to different air outlet ends on the lifting control valve (3); the control end of the second air control valve (64) and the control end of the first air control valve (62) are respectively connected to different air outlet ends on the lifting control valve (3).

8. The spray system for a mining sprinkler as claimed in claim 6, characterized in that: The second air-controlled valve (64) is a single-acting air-controlled valve, and the control end of the second air-controlled valve (64) is connected to the third air outlet end (33) of the lift control valve (3); Alternatively, the second air-controlled valve (64) is a double-acting air-controlled valve, the shutoff control end of the second air-controlled valve (64) is connected to the second air outlet end (32) of the lift control valve (3), and the opening control end of the second air-controlled valve (64) is connected to the third air outlet end (33) of the lift control valve (3).

9. The spray system for a mining sprinkler as claimed in claim 6, characterized in that: The self-flowing sprinkler assembly (65) comprises a first nozzle (651) and a first pipeline (652); the first nozzle (651) is connected to the second air-controlled valve (64) via the first pipeline (652); and a first manual switch valve (653) is provided on the first pipeline (652).

10. The mining sprinkler system according to any one of claims 1 to 9, characterized in that: The pressure spraying assembly (63) comprises: a pressurized water spraying assembly (63A), comprising a second spray head (631) and a second pipeline (632), wherein the second spray head (631) is connected to the first air-controlled valve (62) via the second pipeline (632), and a second manual switch valve (633) is provided on the second pipeline (632); and / or, A dust suppression spray assembly (63B), comprising an atomizing nozzle (634) and a third pipeline (635), wherein the atomizing nozzle (634) is connected to the first air-controlled valve (62) via the third pipeline (635), and a third manual switch valve (636) is provided on the third pipeline (635); and / or, The firefighting assembly (63C) comprises a firefighting water monitor (637) and a fourth pipeline (638), wherein the firefighting water monitor (637) is connected to the first air-controlled valve (62) via the fourth pipeline (638), and a fourth manual switch valve (639) is provided on the fourth pipeline (638).

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