Straight-through pipe double-nozzle dust suppression vehicle

Abstract

The straight-through pipe double-nozzle dust suppression vehicle comprises a vehicle body, a water storage device, a water outlet pipe and a spraying device, the lower end of the water outlet pipe is directly inserted into the bottom of the interior of the water storage device from top to bottom from the exterior of the water storage device, the water outlet pipe arranged in the water storage device is a straight-through pipe, and the upper end of the water outlet pipe penetrates out of the upper portion of the water storage device; the part, penetrating out of the water storage device, of the upper end of the water outlet pipe is provided with a bent part, the water storage device is arranged on the vehicle body, and a water outlet of the water outlet pipe is connected with a spraying device after being turned through the bent part. And the length of the water outlet pipeline and the number of elbows in the water outlet pipeline are reduced, so that the on-way resistance of water flow is reduced, and the water flow spraying distance is increased. During water spraying dust suppression operation, the rotating direction of the rotating device on the left water storage device is always opposite to the rotating direction of the rotating device on the right water storage device, a water curtain is formed, raised dust can be quickly covered, and the device belongs to the field of environmental protection and air pollution control.

Description

Technical Field

[0001] The present invention relates to a mine blasting dust suppression equipment, in particular to a straight-through pipe double-nozzle dust suppression vehicle. It is used for dust control in large-area, high-concentration dust occasions such as mine blasting, tunnel blasting, and demolition blasting. It belongs to the field of environmental protection and air pollution control. Background Art

[0002] Based on the high-pressure water sprayed from the high-pressure water tank, the long spray distance and large coverage area are the goals that mine blasting dust suppression vehicles are constantly pursuing in terms of performance. Application No. 201920975638.5 discloses a dual-tank water storage device for a vehicle, and Application No. 202022315181.0 discloses a multifunctional dust suppression vehicle. This multifunctional dust suppression vehicle has two water storage devices, and the two water storage devices share a water outlet, a water outlet valve, a water outlet pipe, and a horizontal rotating injection device. The water in the water storage device passes through the water outlet, the water outlet valve, and the water outlet pipe and is sprayed from the injection device. The water outlet pipe of the first tank body is set at the bottom of the first tank body, and the water outlet pipe of the second tank is set at the bottom of the second tank body. In the above structure, the path of the pipeline between the tank body water outlet pipe and the injection device is long, and the number of elbows in the pipeline is large, which increases the resistance along the way of water flowing out of the pipeline and reduces the injection distance of the pressure water of the dust suppression vehicle. Summary of the invention

[0003] Aiming at the shortcomings and defects of the water supply system of dust suppression vehicles in the prior art, which has many bending structures and increases the water flow resistance in the water pipe, resulting in a short distance and a small range of the sprayed water, the present invention provides a straight-through pipe double-nozzle dust suppression vehicle, including: a vehicle body, a water storage device, a water outlet pipe, and a spray device. The lower end of the water outlet pipe is directly inserted from the outside of the water storage device to the bottom of the inside of the water storage device from top to bottom, and a certain gap is left for water inlet. The part of the water outlet pipe arranged inside the water storage device is a straight-through pipe, and the upper end of the water outlet pipe passes through the top of the water storage device. The part of the upper end of the water outlet pipe passing through the water storage device is only provided with a bent portion, and the connection method is: the water storage device is fixed on the vehicle body, and the water outlet of the water outlet pipe is connected to the spray device after changing direction through the bent portion. In this way, the length of the water outlet pipe and the number of elbows in the water outlet pipe are reduced.

[0004] Furthermore, the water outlet pipe part arranged in the water storage device is I-shaped, or may be C-shaped, S-shaped or J-shaped with a smaller degree of curvature, and its internal structure will not generate a large resistance to the internal water flow, thereby reducing the resistance along the water flow and increasing the distance of the water jet. The part of the upper end of the water outlet pipe extending out of the water storage device is provided with a water outlet valve, and the water outlet valve is arranged at this position to prevent rust failure caused by long-term contact with water.

[0005] Further, the bent portion of the water outlet pipe is an elbow, the bending angle of the elbow is less than 90 degrees, and the elbow is detachably connected to the water outlet pipe, and the angle of injection is adjusted by changing the rotation angle of the elbow. The resistance caused by the excessive bending angle of the pipe is avoided, and the smoothness of the water flow is ensured. The water outlet valve is arranged between the elbow and the water outlet pipe, and can also be arranged at other positions of the water outlet pipe that can control the flow of water.

[0006] Furthermore, the spray device includes a lower layer water spray nozzle, an upper layer water spray nozzle and a flange, and the water inlet ends of the lower layer water spray nozzle and the upper layer water spray nozzle are fixed on the water outlet of the same elbow in an overlapping manner, and the water inlet of the upper layer water spray nozzle and the lower layer water spray nozzle respectively occupy the upper and lower halves of the inner hole of the flange. The flange is only used to connect the lower layer water spray nozzle, the upper layer water spray nozzle and the elbow, and the lower layer water spray nozzle and the upper layer water spray nozzle can also be directly welded to the elbow so that the three are directly connected, such that the flange can be omitted.

[0007] Furthermore, the water inlet ends of the lower layer water spray nozzle and the upper layer water spray nozzle are centered on the center of the flange, and the nozzles at the water outlet end form an angle of 10 to 40 degrees in the horizontal direction. The flange is detachably connected to the elbow, and the lower layer nozzle and the upper layer nozzle are detachably connected to the elbow, and the spray amplitude can be adjusted by replacing the lower layer nozzle and the upper layer nozzle.

[0008] Further, the straight-through pipe double-nozzle dust suppression vehicle also includes a rotating device. Taking the left tank as an example, the rotating device includes: a left tank elbow turntable 7, a left tank elbow swivel joint 6, and a left tank water outlet valve 5. The connection method is as follows: the water inlet of the left tank water outlet valve 5 is connected to the upper end of the left tank water outlet pipe 3 through a flange bolt, and the water outlet of the water outlet valve 5 is rotatably connected to the elbow through the left tank elbow turntable 7. Specifically, the upper end of the left tank water outlet pipe 3 is connected to the water inlet flange bolt of the left tank water outlet valve 5, the water outlet of the left tank water outlet valve 5 is connected to the fixed end flange bolt of the left tank elbow swivel joint 6, the swivel end of the left tank elbow swivel joint 6 is connected to the lower end flange bolt of the left tank elbow 8, and the swivel end of the left tank elbow swivel joint 6 is also fixed in the center hole of the left tank elbow turntable 7. The advantage of the left tank water outlet valve 5 being arranged at the upper end of the left tank water outlet pipe 3 is that after use, no residual liquid will remain in the water outlet valve 5 to cause rust and cause failure. The left tank elbow turntable 7 is driven by a hydraulic motor, and the hydraulic motor is electrically connected to the vehicle controller and is controlled by the vehicle controller.

[0009] Furthermore, the water storage device includes a left water storage tank and a right water storage tank, which are symmetrically arranged with the vehicle body driving direction as the axis, and the two water storage tanks respectively have independent and identical water outlet pipes, rotating devices, elbows, water outlet valves, spray devices and spray device brackets, and the two are connected in the same way. The rotating devices of the two water storage tanks are electrically connected to the vehicle controller and are controlled by a preset program in the controller. When spraying water to suppress dust, the rotating devices on the two water storage devices rotate in opposite directions, so that the high-pressure water sprayed by the dust suppression vehicle forms an encirclement effect on the left and right sides of the vehicle, and can achieve multiple swings in the shortest time to form a multi-encircling water curtain, which has a better dust reduction effect.

[0010] The straight-through-pipe double-nozzle dust suppression vehicle described in the present invention has the following water spraying and dust suppression process: before water spraying and dust suppression begins, the interior of the two water storage tanks is inflated and pressurized by the vehicle-mounted pressurizing device or other external air source, and the water spray nozzle on the outer side (upper or lower layer) of the left tank is rotated to the left boundary of the water spraying and dust suppression coverage area, and the water spray nozzle on the outer side (upper or lower layer) of the right tank is rotated to the right boundary of the water spraying and dust suppression coverage area; after water spraying and dust suppression begins, the water outlet valves of the water outlet pipes of the two water storage tanks are opened, and the spray device begins to use the high pressure in the water storage device to transport water to the water spray nozzle through the water outlet pipe, and then When spraying water from a long distance, the rotating device of the left tank rotates from the left boundary of the water spray dust suppression coverage area to the symmetric center of the left and right boundaries. At the same time, the rotating device of the right tank rotates from the right boundary of the water spray dust suppression coverage area to the symmetric center of the left and right boundaries. The left and right rotating devices rotate relative to each other to the symmetric center of the left and right boundaries at the same time, and then rotate in opposite directions at the same time, and so on and so forth until all the pressurized water in the water storage device is sprayed out. During the entire water spraying and rotation process, multiple continuous, large-area water curtains or water screens are quickly formed above the blasting area to prevent the escape of blasting dust.

[0011] Since the rotating devices of the left and right water storage devices rotate counterclockwise at the same time, the rotation angle of the entire water spray dust suppression coverage area is half of the rotation angle of the entire water spray dust suppression coverage area completed by a single rotating device, and the time required to complete the entire water spray dust suppression coverage area is also half of the time required for a single rotating device to rotate. Therefore, the water spray dust suppression has high efficiency, a large coverage area, a fast coverage speed, and a better water spray dust suppression effect.

[0012] The present invention has substantial features and significant progress. The present invention relates to a straight-through-tube double-nozzle dust suppression vehicle, which is characterized in that: the left water storage device and the right water storage device have their own independent rotating devices, and the water outlet pipe is directly inserted from the upper part of the water storage device to the bottom, which reduces the length of the water outlet pipe and the number of elbows in the water outlet pipe, thereby reducing the resistance along the water flow and increasing the distance of the sprayed water flow. The present invention is also characterized in that: during operation, the rotating devices on the left and right water storage devices rotate in opposite directions, and the water sprayed by this straight-through-tube double-nozzle dust suppression vehicle has a long distance, a large coverage range, a fast coverage speed, and a better dust suppression effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a rear view of the present invention.

[0014] Attached Figure 2 It is a top view of the present invention.

[0015] Attached Figure 3 It is the right side view of the present invention. Implementation

[0016] The present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] As attached Figure 1 , Attachment Figure 2 and attached Figure 3 A straight-through pipe double-nozzle dust suppression vehicle shown includes: a vehicle body 1, a water storage device, a water outlet pipe, an elbow, and a spray device. The water storage device includes a left water tank 2 and a right water tank 12, which are welded on a support frame in a bilaterally symmetrical manner. The support frame is welded and fixed on the vehicle chassis 1, and is bilaterally symmetrical with the driving direction of the vehicle body 1 as the axis, and is used to maintain the stability of the vehicle and the water tank. Water outlet pipes are provided on the left water tank 2 and inside the right water tank 12, and most of the water outlet pipes are mainly straight-through pipes. Taking the left tank as an example, the lower end of the left tank water outlet pipe 3 is directly inserted from the outside of the left water tank 2 from top to bottom into the bottom of the inside of the water storage device 2, and a certain gap is left for absorbing water.

[0018] The upper end of the left tank water outlet pipe 3 passes through the part above the water storage device 2, and is bolted to the spray device through a left tank elbow 8 of less than 90 degrees through a flange 11. In this way, there is only a bending structure of less than 90 degrees between the water inlet end of the water outlet pipe 3 and the nozzle of the spray device. The part of the water outlet pipe inside the left water storage tank 2 is a straight pipe, which will not form any obstruction to the internal water flow, so that the water flow in the pipeline can be guaranteed to the greatest extent. Rapid and smooth passage without any obstruction. The left tank elbow 8 is detachably connected to the water outlet pipe by thread or bolt, and the horizontal angle of the nozzle during spraying can be adjusted by replacing elbows with different bending angles.

[0019] The spray device comprises a lower layer water spray nozzle, an upper layer water spray nozzle and a flange, and the water inlet ends of the lower layer water spray nozzle and the upper layer water spray nozzle are fixed on one surface of the same flange by welding and overlapping each other. The flange is detachably connected to the elbow bolt, and by replacing the flange, other flanges welded with nozzles of different shapes and angles can be quickly replaced, which is also convenient for maintenance and repair.

[0020] The water inlets of the upper and lower water spray nozzles respectively occupy half of the range of the upper and lower inner holes of the flange. Specifically, taking the left tank as an example, the upper end of the left tank elbow 8 is fixed to one side of the left tank water spray nozzle flange 11, and the other side of the left tank water spray nozzle flange 11 is fixed with the left tank lower water spray nozzle 9 and the left tank upper water spray nozzle 10. The water inlet ends of the left tank lower water spray nozzle 9 and the left tank upper water spray nozzle 10 take the center of the left tank water spray nozzle flange 11 as the center of the circle, and the other water outlet ends form an angle of 10 to 40 degrees between the two in the horizontal direction.

[0021] This structure distributes the water under high pressure stored in the water tank through a water outlet pipe with only one bend to two water nozzles using the same water outlet pipe for separate spraying, thereby solving the problem that the spraying range of a straight pipe or a single water pipe is not wide enough, and also avoids the need to add a switching pipe such as a tee to divide the water nozzle into two and increase the additional resistance to the water flow in the pipe caused by the pipe turning structure, thereby avoiding a reduction in the distance of the water sprayed from the water nozzle.

[0022] The cross section of the water inlet of the upper water spray nozzle 10 of the left tank is a regular trapezoid, and the cross section of the water inlet of the lower water spray nozzle 9 of the left tank is an inverted trapezoid. The water inlets of the two are welded together in a regular hexagonal shape. The upper water spray nozzle 10 of the left tank and the lower water spray nozzle 9 of the left tank are welded and fixed with the center of the hexagon aligned with the center of the flange, and are bolted to the left tank elbow 8 through the left tank water spray nozzle flange 11. The water inlets of the upper water spray nozzle and the lower water spray nozzle occupy half of the upper and lower cross sections of one end of the water outlet of the elbow 8, respectively.

[0023] The lower layer water spray nozzle 9 of the left tank and the upper layer water spray nozzle 10 of the left tank are welded by four steel plates, the upper and lower and left and right, respectively. The cross section from the water inlet to the water outlet gradually changes from a trapezoidal shape to a flat rectangle, and the inner cavity of the water spray nozzle is a hollow shrinkage structure. This structure can be manufactured with the simplest manufacturing process to form a hexagonal shape that is closest to the cross section of the water outlet of the left tank elbow 8, that is, the circular cross section. That is, under the premise that the upper and lower water spray nozzles are welded by four steel plates, the hexagonal cross-sectional shape can minimize the resistance of the water flow when docked with the circular water outlet pipe and the inner hole of the flange, and can minimize the influence of the internal shape change of the pipe on the water flow velocity, and prevent the loss of the flow velocity of the water flow from the circular water pipe to the trapezoidal water pipe of the single water spray nozzle.

[0024] For optimization, if the upper and lower water nozzles are manufactured as one piece by casting or other methods without considering the cost, the cross-sectional shape of the water inlet of the upper and lower water nozzles can also be set to a semicircle with the same diameter as the elbow water outlet. The upper and lower semicircles are combined together to form a corresponding circle with the elbow water outlet pipe and the inner hole of the flange, which will have a smaller impact on the water flow velocity. The water outlet is shrunk into a duckbill shape or a rectangular strip with round ends like the Huawei charging port, which further increases the water outlet pressure and width of the water nozzle.

[0025] Further, the straight-through pipe double-nozzle dust suppression vehicle also includes a rotating device, the rotating device includes: a left tank elbow turntable 7, a left tank elbow swivel joint 6, and a left tank water outlet valve 5, and the connection method is: the water inlet of the left tank water outlet valve 5 is connected to the upper end of the left tank water outlet pipe 3 through a flange bolt, and the water outlet of the water outlet valve 5 is rotatably connected to the elbow through the left tank elbow turntable 7. Specifically, the upper end of the left tank water outlet pipe 3 is connected to the water inlet flange bolt of the left tank water outlet valve 5, the water outlet of the left tank water outlet valve 5 is connected to the fixed end flange bolt of the left tank elbow swivel joint 6, the swivel end of the left tank elbow swivel joint 6 is connected to the lower end flange bolt of the left tank elbow 8, and the swivel end of the left tank elbow swivel joint 6 is also fixed in the center hole of the left tank elbow turntable 7. The advantage of the left tank water outlet valve 5 being arranged at the upper end of the left tank water outlet pipe 3 is that after use, no residual liquid will remain in the water outlet valve 5 to cause rust and cause failure. The left tank elbow turntable 7 is driven by a hydraulic motor, and the hydraulic motor is electrically connected to the vehicle controller and is controlled by the vehicle controller.

[0026] Furthermore, a left tank spray device bracket 4 is also provided on the left water storage tank 2, and the four legs of the left tank spray device bracket 4 are welded and fixed to the left water storage tank 2. The left tank elbow turntable 7 is embedded in the upper flat plate of the left tank spray device bracket 4, and the upper flat plate of the left tank spray device bracket 4 is used to support and fix the left tank elbow turntable 7.

[0027] Furthermore, the two water storage tanks respectively have independent water outlet pipes, water outlet valves, rotating devices, elbows, injection devices and injection device brackets with the same structure, and the connection method of the two is the same.

[0028] Furthermore, the left tank elbow turntable 7 on the left water storage device 2 and the rotating device on the right water storage device 12 are both electrically connected to the vehicle controller, and their rotation modes are controlled by a preset program of the controller. During normal operation, the rotation direction of the rotating device on the left water tank 2 is opposite to the rotation direction of the rotating device on the right water tank 12.

[0029] The water spraying and dust suppression process of the straight-pipe double-nozzle dust suppression vehicle is as follows: before the water spraying and dust suppression begins, the on-board air pump inflates and pressurizes the two water tanks through the air inlet of the water tank to make the water tank reach a certain pressure, and the water nozzle on the outside (upper or lower layer) of the left tank is rotated to the left boundary of the water spraying and dust suppression coverage area, and the water nozzle on the outside (upper or lower layer) of the right tank is rotated to the right boundary of the water spraying and dust suppression coverage area; when the pressure in the two water tanks reaches the preset value, water spraying and dust suppression can be started. As long as the water outlet valves of the left and right water tanks are opened at the same time, the water reserved in the water tank begins to use the high pressure in the water storage device to transport the water to the water nozzle through the water outlet pipe for long-distance water spraying. At the same time, the vehicle controller controls the rotation of the left tank according to the preset program. The device rotates from the left boundary of the water spray dust suppression coverage area to the symmetric center of the left and right boundaries. At the same time, the vehicle controller also controls the rotating device of the right tank to rotate from the right boundary of the water spray dust suppression coverage area to the symmetric center of the left and right boundaries according to a preset program; the left and right rotating devices rotate relatively to the symmetric center of the left and right boundaries at the same time and then rotate oppositely at the same time, that is, the rotating device of the left tank starts to rotate toward the left boundary of the water spray dust suppression coverage area, and the rotating device of the right tank starts to rotate toward the right boundary of the water spray dust suppression coverage area; ...; this is repeated until all the pressurized water in the water storage device is sprayed out; the entire water spraying and rotation process quickly forms multiple continuous, large-area water curtains or water screens above the blasting area to prevent the escape of blasting dust.

[0030] Since the rotating devices of the left and right water storage devices rotate counterclockwise at the same time, the rotation angle of the entire water spray dust suppression coverage area is half of the rotation angle of the entire water spray dust suppression coverage area completed by a single rotating device, and the time required to complete the entire water spray dust suppression coverage area is also half of the time required for a single rotating device to rotate. Therefore, the water spray dust suppression efficiency is high, the coverage range is large, the water spray dust suppression coverage speed is fast, and the water spray dust suppression effect is better.

Claims

1. A straight-through pipe double-nozzle dust suppression vehicle, comprising: A vehicle body (1), a water storage device, a water outlet pipe, and a spray device, characterized in that: the lower end of the water outlet pipe is directly inserted from the outside of the water storage device from top to bottom into the bottom of the water storage device, the water outlet pipe arranged inside the water storage device is a straight pipe, the upper end of the water outlet pipe passes through the top of the water storage device, and the part of the upper end of the water outlet pipe passing through the water storage device is provided with a bent portion, and the connection method is: the water storage device is fixed on the vehicle body, and the water outlet of the water outlet pipe is connected to the spray device after changing direction through the bent portion.

2. A straight-through-pipe double-nozzle dust suppression vehicle according to claim 1, characterized in that: The bent portion of the water outlet pipe is an elbow, and the bending angle of the elbow is less than 90 degrees.

3. A straight-through-pipe double-nozzle dust suppression vehicle according to claim 2, characterized in that: The spray device comprises a lower layer water spray nozzle and an upper layer water spray nozzle. One end of the water inlet of the lower layer water spray nozzle and the upper layer water spray nozzle is fixed on the water outlet of the same elbow in an overlapping manner, and is sealed and connected to the water outlet of the elbow.

4. A straight-through-pipe double-nozzle dust suppression vehicle according to claim 3, characterized in that: The water inlets of the upper and lower water nozzles occupy half of the inner hole of the elbow respectively. One end of the water inlet of the lower and upper water nozzles takes the center of the water outlet of the elbow as the center of the circle, and one end of the other water outlet forms an angle of 10 to 40 degrees with each other in the horizontal direction.

5. A straight-through-pipe double-nozzle dust suppression vehicle according to claim 4, characterized in that: The cross section of the water inlet of the upper water spray nozzle (10) is a regular trapezoid, and the cross section of the water inlet of the lower water spray nozzle is an inverted trapezoid. The cross section formed by the upper and lower water inlets of the two is a hexagon, and the distance between one set of corresponding sides of the hexagon is equal to or slightly larger than the inner hole diameter of the elbow.

6. A straight-through-pipe double-nozzle dust suppression vehicle according to claim 5, characterized in that: The lower layer water spray nozzle and the upper layer water spray nozzle are respectively welded by four steel plates, upper, lower, left and right, and the cross section from the water inlet to the water outlet gradually transitions from a trapezoid to a flat rectangle.

7. A straight-through-pipe double-nozzle dust suppression vehicle according to claim 6, characterized in that: It also includes a rotating device, which includes an elbow rotating joint (6) and an elbow turntable (7), and is connected in the following manner: the rotating end of the elbow rotating joint (6) is fixed in the center hole of the elbow turntable (7), and the rotating end of the elbow rotating joint (6) is fixedly connected to the lower end of the elbow (8).

8. The straight-through-pipe double-nozzle dust suppression vehicle according to claim 7, characterized in that: The water outlet pipe (3) further comprises a water outlet valve (5), the water inlet of the water outlet valve (5) being fixedly connected to the upper end of the water outlet pipe (3), and the water outlet of the water outlet valve (5) being rotatably connected to the elbow via a rotating device.

9. The straight-through-pipe double-nozzle dust suppression vehicle according to claim 8 is also characterized in that: There are two water storage devices, which are symmetrically arranged on the vehicle body with the direction of travel of the vehicle body (1) as an axis. The two water storage devices have independent and identical water outlet pipes, elbows and spray devices, and the connection methods of the two are the same.

10. The straight-through-pipe double-nozzle dust suppression vehicle according to claim 9 is further characterized by: It also includes a controller, the rotating device is electrically connected to the controller, and its rotation mode is controlled by a preset program in the controller. During water spraying and dust suppression operations, the rotation directions of the rotating devices on the two water storage devices are opposite to each other.

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