Spraying dust suppression device for movable discharging point

Abstract

The utility model discloses a spraying dust suppression device for a movable discharging point, and relates to the technical field of dust suppression. Comprising a material conveying system, a spraying system and an operation platform, the material conveying system comprises a material flow conveying device, a discharging chute and a partition touch control piece. The operation platform is provided with a discharging channel corresponding to a discharging opening of the material flow conveying device. The spraying system comprises a water source device, a fluid nozzle and an electric control valve; the water source device is arranged outside the operation platform; the fluid nozzle is installed on the operation platform and corresponds to the discharging channel in position. The operation platform comprises at least one platform partition; each platform subarea is provided with a fluid nozzle and a limiting sensor; the limiting sensors are configured to control the corresponding electric control valves to be opened after being triggered by the partition touch control pieces. The utility model provides a spraying dust suppression device for a movable discharging point, and aims to solve the technical problems that the water quantity is limited due to the fact that a water tank is placed on movable discharging equipment, and the water consumption and the power consumption are large due to the fact that integral spraying is arranged at the top of a workshop.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust suppression technical field, specifically, relate to a kind of for mobile unloading point's spray dust suppression device. BACKGROUND

[0002] In bulk material production process, to improve the utilization efficiency of storage workshop, mobile unloading equipment is often used, such as mobile belt conveyor, unloading car, etc. The material at the unloading point, especially the powdery material, is prone to dust due to air disturbance while falling under the action of gravity. In this scenario, spray dust suppression is often used, but for mobile unloading position, the water supply system is difficult to move together. The general solution is to set up a whole spray on the top of the workshop or place a water tank on the mobile unloading equipment. The disadvantage of setting up a whole spray on the top of the workshop is that the dust production point is small, and the whole spray consumes a lot of water and electricity, while most of the spray does not act on the dust, and the droplets fall on the equipment and operating platform, affecting normal production. The disadvantage of placing a water tank on the mobile unloading equipment is that the water tank has limited water capacity and needs to be refilled manually frequently. SUMMARY

[0003] The utility model aims to provide a kind of for mobile unloading point's spray dust suppression device, to solve the technical problems of limited water capacity caused by placing a water tank on the mobile unloading equipment and large water and electricity consumption caused by setting up a whole spray on the top of the workshop to some extent.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A spray dust suppression device for mobile unloading point, comprising a material conveying system, a spray system and an operating platform;

[0006] The material conveying system comprises a material flow conveying device, an unloading chute and a partition touch control; the unloading chute is sleeved on the output end of the material flow conveying device, and the partition touch control is connected to the outer wall of the unloading chute; the material flow conveying device and the unloading chute are movably arranged on the operating platform; the operating platform has an unloading passage corresponding to the unloading port of the material flow conveying device;

[0007] The spray system comprises a water source device and a fluid nozzle in communication with the water source device, and further comprises an electric control valve for controlling the fluid communication to the fluid nozzle; the water source device is arranged outside the operating platform; the fluid nozzle is installed on the operating platform, and the position corresponds to the unloading passage;

[0008] The operation platform comprises at least one platform partition in the moving direction of the material flow conveying device; each platform partition is provided with the fluid nozzle and a limit sensor; the limit sensor is electrically connected with the electrically controlled valve; the limit sensor is configured to be triggered by the partition touch control to correspondingly control the electrically controlled valve in the platform partition where the limit sensor is located to open the fluid flowing to the fluid nozzle.

[0009] In any of the above technical solutions, optionally, the spray system further comprises a first connecting pipe, a second connecting pipe and a third connecting pipe;

[0010] The first end of the first connecting pipe is in communication with the water source device, and the tail end of the first connecting pipe is in communication with the first end of the second connecting pipe and the first end of the third connecting pipe, respectively; the second connecting pipe and the third connecting pipe are located on both sides of the unloading channel;

[0011] The second connecting pipe and the third connecting pipe are in communication with an adapter pipe in each platform partition, and the fluid nozzle and the electrically controlled valve are arranged on each adapter pipe.

[0012] In any of the above technical solutions, optionally, the spray system further comprises a back-blowing air source device and a fourth connecting pipe;

[0013] The first end of the fourth connecting pipe is in communication with the back-blowing air source device, and the tail end of the fourth connecting pipe is in communication with the first end of the second connecting pipe and the first end of the third connecting pipe, respectively;

[0014] An eighth control valve is arranged on the fourth connecting pipe.

[0015] In any of the above technical solutions, optionally, a manual valve for controlling the on-off of fluid flowing to the fluid nozzle is further arranged on each adapter pipe;

[0016] The first end of the second connecting pipe and the first end of the third connecting pipe are both provided with an electrically controlled valve;

[0017] In any of the above technical solutions, optionally, the spray dust suppression device for moving the unloading point further comprises a control device;

[0018] A first control valve and a high-pressure pump are arranged on the first connecting pipe; the first control valve and the high-pressure pump are electrically connected with the control device, respectively;

[0019] A material flow sensor for monitoring the material flow rate is arranged on the material flow conveying device; the material flow sensor is electrically connected with the control device; when the material flow conveying device stops conveying material for a preset time, the material flow sensor sends the information to the control device, and the control device correspondingly controls the high-pressure pump to stop working.

[0020] Optionally, the unloading chute is provided with a material level sensor electrically connected with the control device; the material level sensor is used for monitoring the unloading height and sending the unloading height information to the control device, and the control device controls the high-pressure pump correspondingly.

[0021] The height of the material level sensor is consistent with the height of the fluid nozzle.

[0022] Optionally, each platform partition is provided with a pre-spraying limit sensor and / or a post-spraying limit sensor.

[0023] The pre-spraying limit sensor is electrically connected with the control device, the control device is used for receiving the triggering information of the pre-spraying limit sensor by the partition touch control, and correspondingly controls the opening of the corresponding spraying system in the platform partition where the pre-spraying limit sensor is located.

[0024] The post-spraying limit sensor is electrically connected with the control device, the control device is used for receiving the triggering information of the post-spraying limit sensor by the partition touch control, and correspondingly controls the closing of the corresponding spraying system in the platform partition where the post-spraying limit sensor is located.

[0025] Along the moving direction of the material flow conveying device, the length size of the partition touch control is consistent with the length size of the platform partition.

[0026] Optionally, the partition touch controls are arranged in pairs; each pair of partition touch controls is symmetrically arranged on the two sides of the unloading chute.

[0027] The limit sensor comprises a first limit sensor and a second limit sensor; the first limit sensor and the second limit sensor are symmetrically arranged on the two sides of the operation platform.

[0028] Optionally, the material flow conveying device comprises a mobile belt conveyor.

[0029] The water source device comprises a filter and a softener.

[0030] Optionally, the operation platform is provided with a track, and the bottom of the material flow conveying device is provided with a moving wheel; the moving wheel is rollably connected on the track.

[0031] The number of the track is two, and a plurality of groups of moving wheels are arranged on each track.

[0032] The beneficial effects of the utility model mainly lie in:

[0033] The spraying dust suppression device for mobile unloading points provided by the utility model, including material conveying system, spraying system and operation platform, its water source device is arranged outside the operation platform, belongs to fixed water source, solves the shortcoming of limited water quantity caused by placing the water tank on the mobile unloading equipment, when the material conveying system moves to one of the platform partitions to unload, the partition touch control of the material conveying system can trigger the limiting sensor of the platform partition, and the fluid nozzle of the platform partition is controlled to be opened to suppress dust, effectively reduces the scattering of unloading dust, at the same time, the fluid nozzle of the corresponding platform partition is accurately opened, and water consumption and power consumption are effectively reduced.

[0034] In order to make the above objectives, characteristics and advantages of the present application more apparent, clear and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are referred to for detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled in the art, under the premise of not paying the creative labor, other related drawings can also be obtained according to these drawings.

[0036] Figure 1 The structural schematic diagram of the spraying dust suppression device for mobile unloading points provided by the utility model embodiment is shown in the figure.

[0037] Figure 2 For Figure 1 The a-a sectional view of the spraying dust suppression device for mobile unloading points shown in the figure.

[0038] Figure 3 The structural schematic diagram of the spraying system provided by the utility model embodiment is shown in the figure.

[0039] Figure legend: 10-material conveying system;11-material flow conveying device;12-unloading chute;13-mobile wheel;14-rail;15-operation platform;16-partition touch control;

[0040] 20 - spray system; 21 - water source device; 221 - first connecting pipe; 222 - second connecting pipe; 223 - third connecting pipe; 224 - fourth connecting pipe; 231 - first switching pipe; 232 - second switching pipe; 233 - third switching pipe; 234 - fourth switching pipe; 241 - first control valve; 242 - second control valve; 243 - third control valve; 244 - fourth control valve; 245 - fifth control valve; 246 - sixth control valve; 247 - seventh control valve; 248 - eighth control valve; 25 - back flushing air source device; 26 - high pressure pump; 271 - first single-fluid nozzle; 272 - second single-fluid nozzle;

[0041] 31 - flow sensor; 32 - level sensor; 33 - first limit sensor; 34 - second limit sensor; 41 - material flow line; 42 - highest material pile line; 43 - pre-spraying limit sensor; 44 - post-spraying limit sensor. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0044] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0047] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0049] The current commonly used spray dust suppression methods include setting a whole spray on the top of the workshop and placing a water tank on the mobile unloading equipment. The whole spray is set on the top of the workshop, that is, no matter the specific operation mode in the workshop or the position of the dusting point, the spray dust suppression is arranged in the whole workshop. The advantage is that no matter the unloading, loading or other mechanical operation in the workshop, the dust in the workshop can be guaranteed not to overflow. The disadvantage is that the source is not treated, the dust is captured and settled by the atomized droplets when it is suspended in the workshop, the water and electricity consumption is large, the view of the patrol personnel and the mechanical driver in the workshop is affected, and the equipment in the workshop is generally in a high-humidity and high-dust working condition. The water tank is placed on the mobile unloading equipment, for example, the spray dust suppression system is arranged on the mobile unloading equipment. The advantage is that the configuration is simple and the construction is convenient. The disadvantage is that the water tank has a limited capacity and needs to be manually replenished frequently. The complete system needs to be arranged on the mobile unloading equipment frame, which increases the load and arrangement area of the mobile unloading equipment. The core of the above problems is caused by the movement of the unloading point or dusting point, and the spray dust suppression water supply pipeline cannot be bent and stretched at will. At the dusting point of the unloading operation in the open space, the single-fluid high-pressure micro-spray process can effectively suppress dust and can maximize the impact of air disturbance. The double-fluid process is usually used in closed or semi-closed narrow spaces, and the wind speed should not exceed 0.3 m / s, for example. The droplets formed by the ordinary low-pressure spray process are large, and more water consumption is needed to achieve the same dust suppression purpose, which will significantly increase the moisture content of the material. The single-fluid high-pressure micro-spray process uses a water pressure of up to 7 MPa, for example, and forms droplets of about 50 μm after passing through a nozzle with a nozzle hole of 0.5 mm, for example, which can effectively suppress the dust generated during the falling of the material. This system usually uses a pressure-bearing metal pipeline with a pressure of 12 MPa or even higher, which is difficult to realize the movement of the nozzle. For example, the size of the unloading port is adjusted according to the amount of conveyed material, and at least four nozzles are arranged to control the dust in a relatively small range. The commonly used nozzle model is 4010, that is, the effective spraying distance is 5-8 m, the water pressure is 7 MPa, and the water consumption is 12 L / h. According to the calculation of the nozzle, the hourly water consumption is 4 x 12 L / h = 48 L / h. When using the vehicle-mounted form, the water tank capacity is difficult to guarantee continuous operation for a long time.

[0050] The embodiment provides a spray dust suppression device for a mobile unloading point, which can be used for dust suppression in the production process of bulk materials. Compared with the whole spray scheme, the spray dust suppression device for the mobile unloading point can avoid dust scattering in the workshop according to the unloading dusting point. The dust suppression effect can be guaranteed, the water and electricity consumption can be reasonably saved, and the droplets falling on the equipment and operation platform can be avoided to affect the normal production. Compared with the scheme of placing a water tank on the mobile unloading equipment, the water source of the spray dust suppression device for the mobile unloading point is arranged outside the mobile unloading equipment and does not need to be moved. The water source can be arranged separately and does not need to be manually replenished, which has little effect on the mobile unloading equipment.

[0051] Please refer toFigures 1-3 The embodiment provides a spray dust suppression device for moving a discharge point.

[0052] The material conveying system 10 comprises a material flow conveying device 11, a discharge chute 12 and a partitioning touch control 16. The discharge chute 12 is sleeved at the output end of the material flow conveying device 11, and the partitioning touch control 16 is connected to the outer wall of the discharge chute 12. That is, the partitioning touch control 16 protrudes from the outer contour line of the cross section of the discharge chute 12. Optionally, the partitioning touch control 16 is fixedly connected to the outer wall of the discharge chute 12, for example, the partitioning touch control 16 is fixedly connected to the outer wall of the discharge chute 12 by welding, screwing, bonding or the like. In the embodiment, the material flow conveying device 11 continuously conveys the material to the discharge chute 12, and the discharge chute 12 controls the material dropping area. Figure 1 The material flow line 41 conveyed by the material flow conveying device 11 is shown by a dashed line in the figure, Figure 1 and Figure 2 The highest material pile line 42 is simulated by a dashed line in the figure.

[0053] The material flow conveying device 11 and the discharge chute 12 are movably arranged on the operation platform 15. Optionally, the operation platform 15 is provided with a track 14, and the bottom of the material flow conveying device 11 is provided with a moving wheel 13. The moving wheel 13 is rollably connected to the track 14. Optionally, the number of the tracks 14 is two, and each track 14 is provided with a plurality of groups of moving wheels 13.

[0054] The operation platform 15 has a discharge passage corresponding to the discharge port of the material flow conveying device 11. In the embodiment, the material flow conveying device 11 is movable, and the discharge port thereof is also movable. The discharge passage of the operation platform 15 corresponds to the discharge position formed by all the discharge ports, for example, the platform surface of the operation platform 15 is arranged around the discharge passage.

[0055] The spray system 20 comprises a water source device 21 and a fluid nozzle in communication with the water source device 21. The spray system 20 further comprises an electric control valve for controlling the fluid communication of the fluid nozzle. The water source device 21 is arranged outside the operation platform 15, and the position of the water source device 21 is fixed relative to the operation platform 15, for example, the water source device 21 is arranged on the ground or in a room. The fluid nozzle is installed on the operation platform 15, and the position of the fluid nozzle corresponds to the discharge passage. The fluid nozzle is used for spraying fluid to the discharge. In the embodiment, the spray system 20 is provided with water for spraying by the water source device 21. Optionally, the water source device 21 comprises a filter and a softener. The filter, the softener and other water purification equipment can be used to purify the water source as needed.

[0056] The operation platform 15 includes at least one platform section in the moving direction of the material flow conveying device 11; each platform section is provided with a fluid nozzle and a limit sensor, that is, the entire operation platform 15 is provided with fluid nozzles and limit sensors, and the entire unloading channel is provided with corresponding fluid nozzles and limit sensors; the limit sensor is electrically connected with the electric control valve; the limit sensor is configured to be triggered by the sectional touch control 16, and then the corresponding electric control valve of the platform section where the limit sensor is located is controlled to open the fluid flowing to the fluid nozzle, so that the fluid nozzle sprays fluid towards the unloading to suppress dust. The limit sensor is, for example, a position switch or a proximity switch.

[0057] In an optional scheme of the embodiment, the material flow conveying device 11 includes a mobile belt conveyor to perform mobile unloading. The material flow conveying device 11 of the embodiment can also use other types of mobile unloading devices similar to it.

[0058] The spray dust suppression device for mobile unloading point in the embodiment includes a material conveying system 10, a spray system 20 and an operation platform 15; the water source device 21 is arranged outside the operation platform 15 and belongs to a fixed water source, which solves the problem of limited water quantity caused by placing a water tank on the mobile unloading equipment; the operation platform 15 includes at least one platform section; when the material conveying system 10 moves to one of the platform sections to unload, the sectional touch control 16 of the material conveying system 10 can trigger the limit sensor of the platform section and control the fluid nozzle of the platform section to be opened to suppress dust, which effectively reduces the scattering of unloading dust. At the same time, the corresponding fluid nozzle of the platform section is accurately opened, which effectively reduces water and electricity consumption.

[0059] Referring to Figure 3 In an optional scheme of the embodiment, the spray system 20 further includes a first connecting pipe 221, a second connecting pipe 222 and a third connecting pipe 223.

[0060] The head end of the first connecting pipe 221 is communicated with the water source device 21, and the tail end of the first connecting pipe 221 is respectively communicated with the head end of the second connecting pipe 222 and the head end of the third connecting pipe 223; the second connecting pipe 222 and the third connecting pipe 223 are located on both sides of the discharge channel; the second connecting pipe 222 and the third connecting pipe 223 are communicated with an adapter pipe in each platform partition, and a fluid nozzle and an electric control valve are arranged on each adapter pipe; that is, a fluid nozzle is arranged on both sides of the discharge channel to suppress dust. For example, the second connecting pipe 222 is communicated with a first adapter pipe 231 in each platform partition; the third connecting pipe 223 is communicated with a second adapter pipe 232 in each platform partition. Alternatively, the other end of the first adapter pipe 231 is connected with a third adapter pipe 233, and the other end of the second adapter pipe 232 is connected with a fourth adapter pipe 234. Alternatively, the fluid nozzle includes a first single-fluid nozzle 271 and a second single-fluid nozzle 272; the end or middle of the third adapter pipe 233 is connected with the first single-fluid nozzle 271, and the end or middle of the fourth adapter pipe 234 is connected with the second single-fluid nozzle 272. The first single-fluid nozzle 271 and the second single-fluid nozzle 272 can use high pressure to spray water through the nozzle to form fine particle water mist to suppress dust.

[0061] Referring to Figure 3 In an optional scheme of the embodiment, the spray system 20 further includes a back-blowing gas source device 25 and a fourth connecting pipe 224, as shown.

[0062] The head end of the fourth connecting pipe 224 is communicated with the back-blowing gas source device 25, and the tail end of the fourth connecting pipe 224 is respectively communicated with the head end of the second connecting pipe 222 and the head end of the third connecting pipe 223; that is, the fourth connecting pipe 224 is arranged in parallel with the first connecting pipe 221 and is connected with the head end of the second connecting pipe 222 and the head end of the third connecting pipe 223. Through the back-blowing gas source device 25, residual water droplets in the entire spray system 20 can be cleaned, the phenomenon of pipe expansion in winter can be effectively avoided, and scale formed after residual water droplets evaporate can also be avoided, thereby effectively preventing the fluid nozzle from being blocked, for example, effectively preventing the first single-fluid nozzle 271 and the second single-fluid nozzle 272 from being blocked.

[0063] Alternatively, the fourth connecting pipe 224 is provided with an eighth control valve 248. The eighth control valve 248 is used to control the on-off of the gas supply of the back-blowing gas source device 25.

[0064] Referring to Figure 3As shown, in the optional solution of the embodiment, a manual valve for controlling the on-off of fluid to the fluid nozzle is further arranged on each adapter pipe; the manual valve can be manually opened temporarily in case of failure and maintenance. For example, the electric control valve arranged on the first adapter pipe 231 is the fourth control valve 244, and the manual valve arranged on the first adapter pipe 231 is the fifth control valve 245; the electric control valve arranged on the second adapter pipe 232 is the sixth control valve 246, and the manual valve arranged on the second adapter pipe 232 is the seventh control valve 247; optionally, the manual valve is in the normally open state.

[0065] Optionally, the first end of the second connecting pipe 222 and the first end of the third connecting pipe 223 are both provided with an electric control valve; for example, the electric control valve arranged at the first end of the second connecting pipe 222 is the second control valve 242, and the electric control valve arranged at the first end of the third connecting pipe 223 is the third control valve 243. By arranging the electric control valve at the first end of the second connecting pipe 222, the on-off of fluid in the second connecting pipe 222 can be controlled. By arranging the electric control valve at the first end of the third connecting pipe 223, the on-off of fluid in the third connecting pipe 223 can be controlled.

[0066] Referring to Figures 1-3 As shown, in the optional solution of the embodiment, the spray dust suppression device for moving the unloading point further comprises a control device.

[0067] The first control valve 241 and the high-pressure pump 26 are arranged on the first connecting pipe 221; the first control valve 241 and the high-pressure pump 26 are respectively electrically connected with the control device. The water supply pressure of the high-pressure pump 26 can be, for example, 3Mpa-8Mpa, such as 3Mpa, 4Mpa, 4.8Mpa, 5Mpa, 7Mpa or 8Mpa, etc. The high-pressure pump 26 is used to provide pressure for the fluid nozzle, facilitating spraying. The first control valve 241 is used to control the on-off of fluid in the first connecting pipe 221.

[0068] The material flow conveying device 11 is provided with a material flow sensor 31 for monitoring the material flow rate. The material flow sensor 31 is electrically connected to the control device. The material flow sensor 31 monitors whether the material flow conveying device 11 has stopped conveying material for a preset period of time and transmits this information to the control device, which in turn controls the high-pressure pump 26 to stop operating. The preset period of time for the material flow conveying device 11 to stop conveying material can be, for example, 20 seconds, 30 seconds, or 32 seconds. The high-pressure pump 26 is linked to the material flow sensor 31 so that the high-pressure pump 26 stops operating after the preset period of time when the material flow conveying device 11 stops unloading, thereby saving water to a certain extent. Optionally, the material flow sensor 31 monitors the material flow conveying device 11 and transmits this information to the control device, which in turn controls the high-pressure pump 26 to operate. For example, when the high-pressure pump 26 is in the off state (i.e., inactive), the control device controls the high-pressure pump 26 to turn it on upon receiving a signal from the material flow sensor 31, or controls the high-pressure pump 26 to continue operating upon receiving a signal from the material flow sensor 31. In this embodiment, the high-pressure pump 26 can be manually turned on.

[0069] See also Figures 1-3 As shown, in an optional solution of this embodiment, a material level sensor 32 is installed on the discharge chute 12; the material level sensor 32 is used to monitor the discharge height and transmit the discharge height information to the control device, which controls the high-pressure pump 26 accordingly. The high-pressure pump 26 is linked to the material level sensor 32 so that when the material flow conveying device 11 discharges material, the control device can control the operation of the high-pressure pump 26 accordingly. Optionally, the control device is configured to control the electrical frequency of the high-pressure pump 26 according to different discharge height information, so that the high-pressure pump 26 can output different pressures according to the discharge height. For example, when the high-pressure pump 26 is in the off state (i.e., the non-operating state), it is turned on after receiving a signal from the material level sensor 32, or it is manually turned on. The high-pressure pump 26 can be frequency-controlled and adjusted according to the signal of the material level sensor 32. When the height of the unloading pile exceeds a preset distance (for example, 5 meters or other distance) from the spraying point, the water supply pressure is adjusted to the highest value (for example, 8 MPa or other pressure value). When the height is less than the preset low level (for example, 1 meter or other distance), the water supply pressure is adjusted to the lowest value (for example, 3 MPa or other pressure value).

[0070] Optionally, the height of the material level sensor 32 is consistent with the height of the fluid nozzle. Optionally, the material level sensor 32 is installed at the front end of the discharge chute 12 and is at the same height as the first single-fluid nozzle 271 and the second single-fluid nozzle 272. It can monitor the height of the material pile at the current discharge point and send a signal to the control device when the material pile height approaches the discharge port, issuing a corresponding alarm prompt.

[0071] See also Figures 1-3As shown, in the optional solution of the embodiment, each platform partition is provided with a pre-spraying limit sensor 43 and / or a post-spraying limit sensor 44; optionally, each platform partition is provided with a pre-spraying limit sensor 43 and a post-spraying limit sensor 44.

[0072] The pre-spraying limit sensor 43 is electrically connected with the control device, the control device is used for receiving the triggering information of the pre-spraying limit sensor 43 by the partition touch control 16, and corresponding control of the corresponding spraying system 20 in the platform partition where the pre-spraying limit sensor 43 is located is started. That is, the pre-spraying limit sensor 43 and the spraying system 20 in the same platform partition are linked and arranged. Wherein, the corresponding spraying system 20 in the platform partition is started, which means that the fluid nozzle corresponding to the platform partition can spray fluid, the pipeline passing through the fluid nozzle is in a connected state, and the corresponding valve is in an open state.

[0073] The post-spraying limit sensor 44 is electrically connected with the control device, the control device is used for receiving the triggering information of the post-spraying limit sensor 44 by the partition touch control 16, and corresponding control of the corresponding spraying system 20 in the platform partition where the post-spraying limit sensor 44 is located is closed. That is, the post-spraying limit sensor 44 and the spraying system 20 in the same platform partition are linked and arranged. Wherein, the corresponding spraying system 20 in the platform partition is closed, which means that the fluid nozzle corresponding to the platform partition cannot spray fluid, the pipeline passing through the fluid nozzle is in a disconnected state, and the corresponding valve is in a closed state.

[0074] Optionally, along the moving direction of the material flow conveying device 11, the length size of the partition touch control 16 is consistent with the length size of the platform partition.

[0075] Referring to Figures 1-3 As shown, in the optional solution of the embodiment, the partition touch controls 16 are arranged in pairs; each pair of partition touch controls 16 is symmetrically arranged on the two sides of the discharge chute 12; the limit sensors include first limit sensors 33 and second limit sensors 34; the first limit sensors 33 and the second limit sensors 34 are symmetrically arranged on the two sides of the operation platform 15. By arranging the first limit sensors 33 and the second limit sensors 34 on the two sides of the operation platform 15, and arranging the partition touch controls 16 in pairs, the accuracy of triggering the limit sensors by the partition touch controls 16 is improved.

[0076] Optionally, the spray dust suppression device for moving the discharge point of the present embodiment is consistent in length size of the partition touch control 16 and the length size of the platform partition along the moving direction of the material flow conveying device 11; when the partition touch control 16 is close to the first limit sensor 33 and the second limit sensor 34, the first limit sensor 33 and the second limit sensor 34 jointly give a start signal to control the first single-fluid nozzle 271 and the second single-fluid nozzle 272 of the corresponding platform partition to open. When the partition touch control 16 is away from the first limit sensor 33 and the second limit sensor 34, the first limit sensor 33 and the second limit sensor 34 jointly give a stop signal to control the first single-fluid nozzle 271 and the second single-fluid nozzle 272 of the corresponding platform partition to close. In order to avoid interference, the first limit sensor 33 and the second limit sensor 34 can only give a consistent signal to control the first single-fluid nozzle 271 and the second single-fluid nozzle 272 to act simultaneously. When the moved discharge position has less material temporarily, i.e., the discharge height is lower, the material falling height is higher, the dust production is greater, and the effective distance of the fluid nozzle spray and the water quantity are required to be greater. Conversely, when the discharge material pile is higher, the material falling height is low, the fluid nozzle is close to the material pile, and the water pressure of the fluid nozzle is too high, which will make the material of the material pile fly and produce more dust. Therefore, the material level sensor 32 is arranged to monitor the distance between the discharge material pile and the fluid nozzle. For example, in combination with the selection of the fluid nozzle, when the distance between the discharge material pile and the fluid nozzle is more than 5 meters, the water pressure is adjusted to the highest 8 Mpa, when the distance between the discharge material pile and the fluid nozzle is less than 1 meter, the water pressure is adjusted to the lowest 3 Mpa, and when the distance is in the middle, the water pressure is adjusted in a linear relationship. When the material conveying system 10 needs to adjust the discharge position, the material production is usually paused, and therefore the material flow sensor 31 is arranged to avoid invalid spraying during the conventional displacement.

[0077] The spray dust suppression device for moving the discharge point of the present embodiment avoids affecting the normal discharge by arranging the partition touch control 16, the first limit sensor 33 and the second limit sensor 34 on both sides of the operation platform 15, and arranging the second connecting pipe 222 and the third connecting pipe 223 on both sides of the discharge passage. The water source device 21, the back-blowing gas source device 25 and the high-pressure pump 26, etc. can be installed in a specially arranged room to reduce or avoid the influence of the high-humidity and high-dust environment on site, to reduce the protection grade of electrical components and to reduce equipment failure. In addition, multiple sets of spray dust suppression devices for moving the discharge point can share one set of water source device 21 and back-blowing gas source device 25, and the structure is more simple.

[0078] The spray dust suppression device for the mobile unloading point provided by the embodiment comprises a material conveying system 10, a spray system 20, an operation platform 15, a control device, control valves and various sensors, and is a controllable and adjustable dust suppression system. By arranging a limit sensor in each platform partition of the operation platform 15, the position of the unloading port can be triggered and determined by the partition touch control 16, and the fluid nozzles of the corresponding platform partition are controlled to be opened. When the material conveying system 10 moves, that is, when the unloading port moves, whether the unloading port moves out of the spraying area of the opened platform partition can be determined by the front spraying limit sensor 43 and the rear spraying limit sensor 44, and when the unloading port moves out, the fluid nozzles of the present platform partition that are opened can be controlled to be closed, and the fluid nozzles of the corresponding platform partition after the unloading port moves can be opened. When the material conveying system 10 idles, for example, the material flow conveying device 11 monitored by the material flow sensor 31 stops conveying material for a preset time, the control device can control the spray system 20 to be closed. When the height of the stack below the unloading port (that is, the unloading height) changes, for example, when the height of the unloading monitored by the material level sensor 32 changes, the control device can adjust the water pressure of the spray system 20 by the high-pressure pump 26. Through the above control and adjustment actions, the dust suppression effect can be ensured, and the water and electricity consumption can be reasonably saved. Compared with the overall spraying scheme, the spray dust suppression device for the mobile unloading point described in the embodiment is aimed at the unloading dust point, and avoids the scattering of dust in the workshop. Compared with the scheme that the water tank is placed on the mobile unloading equipment, the spray dust suppression device for the mobile unloading point described in the embodiment has a separate water source arrangement, does not need manual water replenishment, and has little influence on the mobile unloading equipment.

[0079] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spray dust suppression device for a mobile unloading point, characterized in that: It includes a material conveying system (10), a spraying system (20) and an operating platform (15); The material conveying system (10) comprises a material flow conveying device (11), a discharge chute (12) and a partition touch panel (16); the discharge chute (12) is disposed on the output end of the material flow conveying device (11), and the partition touch panel (16) is connected to the outer wall of the discharge chute (12); the material flow conveying device (11) and the discharge chute (12) can both be movably arranged on the operating platform (15); the operating platform (15) has a discharge channel corresponding to the discharge port of the material flow conveying device (11); The spray system (20) includes a water source device (21) and a fluid nozzle connected to the water source device (21), and also includes an electric control valve for controlling the flow of fluid to the fluid nozzle; the water source device (21) is arranged outside the operating platform (15); the fluid nozzle is installed on the operating platform (15) and its position corresponds to the discharge channel; Along the moving direction of the material flow conveying device (11), the operating platform (15) includes at least one platform partition; each of the platform partitions is provided with the fluid nozzle and the limit sensor; the limit sensor is electrically connected to the electric control valve; the limit sensor is configured to be triggered by the partition touch component (16) and to control the corresponding electric control valve of the platform partition where the limit sensor is located to open the fluid flowing toward the fluid nozzle.

2. The spray dust suppression device for a mobile unloading point according to claim 1, characterized in that: The spray system (20) further includes a first connecting pipe (221), a second connecting pipe (222) and a third connecting pipe (223); The head end of the first connecting pipe (221) is in communication with the water source device (21), and the tail end of the first connecting pipe (221) is in communication with the head end of the second connecting pipe (222) and the head end of the third connecting pipe (223), respectively; the second connecting pipe (222) and the third connecting pipe (223) are located on both sides of the discharge channel; The second connecting pipe (222) and the third connecting pipe (223) are both connected to a transfer pipe in each platform partition, and each transfer pipe is provided with the fluid nozzle and the electric control valve.

3. The spray dust suppression device for a mobile unloading point according to claim 2, characterized in that: The spray system (20) further includes a back-blowing air source device (25) and a fourth connecting pipe (224); The head end of the fourth connecting pipe (224) is in communication with the back-blowing air source device (25), and the tail end of the fourth connecting pipe (224) is in communication with the head end of the second connecting pipe (222) and the head end of the third connecting pipe (223). An eighth control valve (248) is provided on the fourth connecting pipe (224).

4. The spray dust suppression device for a mobile unloading point according to claim 2, characterized in that: Each of the transfer tubes is also provided with a manual valve for controlling the flow of fluid to the fluid nozzle; The first end of the second connecting pipe (222) and the first end of the third connecting pipe (223) are both provided with electric control valves.

5. The spray dust suppression device for a mobile unloading point according to claim 2, characterized in that: Also included are controls; A first control valve (241) and a high-pressure pump (26) are provided on the first connecting pipe (221); the first control valve (241) and the high-pressure pump (26) are electrically connected to the control device respectively; The material flow conveying device (11) is provided with a material flow sensor (31) for monitoring the material flow rate; the material flow sensor (31) is electrically connected to the control device, and the material flow sensor (31) detects that the material flow conveying device (11) stops conveying materials for a preset time and sends the information to the control device, and the control device controls the high-pressure pump (26) to stop working accordingly.

6. The spray dust suppression device for a mobile unloading point according to claim 5, characterized in that: A material level sensor (32) electrically connected to the control device is installed on the discharge chute (12); the material level sensor (32) is used to monitor the height of the discharge and send the discharge height information to the control device, and the control device controls the high-pressure pump (26) accordingly; The height of the material level sensor (32) is consistent with the height of the fluid nozzle.

7. The spray dust suppression device for a mobile unloading point according to claim 5, characterized in that: Each of the platform partitions is provided with a front-spray limit sensor (43) and / or a rear-spray limit sensor (44); The front-spray limit sensor (43) is electrically connected to the control device, and the control device is used to receive the triggering information of the front-spray limit sensor (43) being triggered by the partition touch component (16), and correspondingly control the opening of the corresponding spray system (20) of the platform partition where the front-spray limit sensor (43) is located; The rear-spray limit sensor (44) is electrically connected to the control device, and the control device is used to receive triggering information of the rear-spray limit sensor (44) being triggered by the partition touch panel (16), and correspondingly control the spray system (20) corresponding to the platform partition where the rear-spray limit sensor (44) is located to be closed; Along the moving direction of the material flow conveying device (11), the length dimension of the partition touch component (16) is consistent with the length dimension of the platform partition.

8. The spray dust suppression device for a mobile unloading point according to claim 1, characterized in that: The partition touch components (16) are arranged in pairs; each pair of the partition touch components (16) is symmetrically arranged on both sides of the discharge chute (12); The limit sensor comprises a first limit sensor (33) and a second limit sensor (34); the first limit sensor (33) and the second limit sensor (34) are symmetrically arranged on both sides of the operating platform (15).

9. The spray dust suppression device for a mobile unloading point according to claim 1, characterized in that: The material flow conveying device (11) includes a mobile belt conveyor; The water source device (21) includes a filter and a softener.

10. The spray dust suppression device for a mobile unloading point according to claim 1, characterized in that: A track (14) is provided on the operating platform (15), and a moving wheel (13) is provided at the bottom of the material flow conveying device (11); the moving wheel (13) can be rotatably connected to the track (14); There are two tracks (14), and each track (14) is provided with multiple groups of moving wheels (13).

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