Sand silo cleaning device

Abstract

The utility model provides a sand silo cleaning device. According to the device, a cleaning device and a control device are arranged, the control device comprises a traction device connected with the cleaning device and a rotating device connected with the traction device and arranged in a sand silo cavity, and the rotating device comprises a rotating connector and a rotating component connected with the rotating connector and located in the sand silo cavity; the cleaning device comprises a water supply device, a pipeline connected with the water supply device and a spray head connected with the pipeline and arranged on the rotating component, so that when the silo needs to be cleaned, the spray head gradually cleans deposited tailings from the top of the deposition of the sand silo from top to bottom, and then the tailings are discharged from a sand discharging pipe at the bottom of the sand silo; compared with a traditional sand silo which blows water vapor upwards from the bottom to clean the silo, kinetic energy needed by jetting is greatly reduced, the speed needed by jet flow jetting is reduced, the water consumption is greatly reduced, the underflow concentration cannot be diluted, and the power and efficiency of the whole silo cleaning system are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp treatment, in particular to a sand bin cleaning device. Background Art

[0002] In the actual production of filling, the tailings in the sand bin will accumulate due to too high concentration after thickening and dewatering. If not treated in time, it will affect the normal operation of subsequent operations. Most of the existing cleaning schemes use pneumatic pulp making or water-air pulp making. Pneumatic pulp making is to arrange pneumatic nozzles at a certain distance at the bottom of the sand bin pool, and air is transported through an air station to disturb the tailings at the bottom of the pool. However, it cannot clean the bin online, that is, the sand bin cannot work during the cleaning operation, and it is necessary to drain the clear water at the top of the sand bin to ensure the concentration and prevent mixing; due to the low energy of pneumatic work, generally one-time pulp making cannot completely clean it, and repeated pulp making will consume a lot of time. The difference between hydraulic pulp making and pneumatic pulp making is that hydraulic nozzles are arranged at the bottom of the sand bin pool, and water is transported through a water pump to disturb the tailings at the bottom of the pool. The kinetic energy of hydraulic work is significantly stronger than that of air, but the water consumption is large, and finally it will dilute the concentration of the bottom flow of the sand bin.

[0003] In view of this, it is necessary to design a sand bin cleaning device to solve the above problems. Summary of the Utility Model

[0004] Aiming at the defects of the above-mentioned existing technology, the purpose of the utility model is to provide a sand bin cleaning device. Through a rotatable cleaning device, it can rotate and clean while moving up and down in the sand bin, and can clean the whole area from top to bottom in sequence, saving energy at the same time, and can realize continuous online bin cleaning.

[0005] To achieve the above purpose, the utility model provides a sand bin cleaning device, including: a cleaning device, and a control device for controlling the movement of the cleaning device;

[0006] The control device includes a traction device for controlling the cleaning device, and a rotating device connected to the traction device and arranged in the sand bin cavity; the rotating device includes a rotating joint with one end connected to the traction device, and a rotating member connected to the other end of the rotating joint and located in the sand bin cavity;

[0007] The cleaning device includes a water supply device, a pipeline connected to the water supply device, and a plurality of nozzles connected to the pipeline and arranged on the rotating member.

[0008] Further, the rotating member includes a mounting frame with one end connected to the rotating joint, a rotating arm connected to the other end of the mounting frame, and a limiting mechanism arranged on the mounting frame.

[0009] Further, the nozzles are connected to a plurality of branch pipes on the pipeline.

[0010] Furthermore, the control device further includes a hanger for supporting the traction device.

[0011] Furthermore, the water supply device includes a water drum disposed on the hanger, a high-pressure water pipe connected to the inlet of the water drum, and a water pump disposed on the high-pressure water pipe.

[0012] Furthermore, the traction device includes a servo winch disposed on the hanger, a lifting wire rope having one end connected to the interface of the servo winch, a slider connected to the other end of the lifting wire rope, and a slide rail for controlling the sliding trajectory of the slider; the fixing member of the rotary joint is connected to the slider.

[0013] Furthermore, the pipeline is connected to the outlet of the water drum and penetrates through the slider.

[0014] Furthermore, the slide rail includes a mounting seat disposed at the bottom of the sand bin and a plurality of slide rail wire ropes for connecting the hanger and the mounting seat, and the slide rail wire ropes penetrate through the slider.

[0015] Furthermore, the connection mode between the mounting frame and the rotary arm includes hinged connection.

[0016] Furthermore, the rotating member of the rotary joint is connected to the rotating device by a tension wire rope.

[0017] The beneficial effects of the utility model are:

[0018] The sand bin cleaning device provided by the utility model includes a cleaning device and a control device. The control device includes a traction device and a rotating device connected to the traction device and arranged in the sand bin cavity. The rotating device includes a rotating joint and a rotating member connected to the rotating joint and located in the sand bin cavity. The cleaning device includes a water supply device, a pipeline connected to the water supply device, and a nozzle connected to the pipeline and arranged on the rotating member. Thus, under the action of the traction device, the rotating device can drive the nozzle to move up and down in the cavity of the sand bin. When cleaning the bin is required, the nozzle starts from the top of the silt in the sand bin and gradually clears the silted tailings from top to bottom, and then the tailings are discharged from the sand discharge pipe at the bottom of the sand bin. Compared with the traditional process that requires the entire bottom of the sand bin to be covered, the advantage of this solution is that due to the action of gravity, the sediment in the upper part is usually softer, the kinetic energy required for spraying is greatly reduced, the speed required for the spraying jet is reduced, which means that the water consumption is greatly reduced, and the underflow concentration will not be diluted, resulting in a significant improvement in the power, efficiency and effect of the entire bin cleaning system. Secondly, when bin cleaning is required, automatic bin cleaning is carried out according to the position of the silt surface according to the program. The sand inlet at the top and the sand discharge at the bottom can be opened simultaneously, without affecting the operation of the entire filling system and the concentrator. When the bin cleaning is completed, the entire system can be pulled up by the winch and fixed at the top. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the sand bin cleaning device provided by the utility model;

[0020] Figure 2 is a schematic structural diagram of the rotating device in the sand bin cleaning device provided by the utility model;

[0021] Figure 3 is a partial structural top view of the rotating device in the sand bin cleaning device provided by the utility model.

[0022] REFERENCE NUMERALS

[0023] 1, sand bin; 211, servo winch; 212, lifting steel wire rope; 213, slider; 2141, mounting seat; 2142, slide rail steel wire rope; 22, rotating device; 221, rotating joint; 2211, fixing member; 2212, rotating member; 2213, steel ball; 2221, mounting bracket; 2222, rotating arm; 2223, limiting mechanism; 23, hanging bracket; 24, tensioning steel wire rope; 311, water drum; 312, high-pressure water pipe; 313, water pump; 321, first water pipe; 322, second water pipe; 33, nozzle; 4, sand discharge pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Here, it should also be noted that in order to avoid obscuring the present utility model due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present utility model are shown in the drawings, while other details not closely related to the present utility model are omitted. Additionally, it should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0026] As Figures 1 to 3 shown, a sand bin cleaning device provided by the present utility model includes: a cleaning device, a control device for controlling the movement of the cleaning device, and a sand discharge pipe 4 provided at the bottom end of the sand bin 1;

[0027] The control device includes a traction device for controlling the cleaning device, a rotating device 22 connected to the traction device and disposed inside the cavity of the sand bin 1, and a hanger 23 for supporting the traction device; the rotating device 22 includes a rotating joint 221 with one end connected to the traction device, and a rotating member connected to the rotating part of the rotating joint 221 and located inside the cavity of the sand bin 1; the rotating joint 221 is a component whose inner and outer rings can rotate relative to each other and whose interior can conduct water. The inner ring of the rotating joint 221 is connected to the traction device and is a fixed part, while the outer ring is connected to the rotating arm 2222 and is a rotating part. Its function is to lead high-pressure water from the relatively stationary upper pipeline to the nozzles on the continuously rotating rotating arm 2222.

[0028] The cleaning device includes a water supply device disposed on the hanger 23, a pipeline connected to the water supply device, and a plurality of nozzles 33 connected to the pipeline and disposed on the rotating member.

[0029] With such a setting, the traction device drives the rotating device 22, and then can drive the nozzles 33 to spray water in the entire cavity of the sand bin 1. In this way, during the bin cleaning operation, sand can continuously enter the top of the sand bin 1, and sand can continuously be discharged from the bottom of the sand bin 1, without affecting the production operation of the mine, realizing true continuous on-line bin cleaning.

[0030] Specifically, in some embodiments of the present utility model, the traction device includes a servo winch 211 disposed on the hanger 23, a lifting steel wire rope 212 with one end connected to the interface of the servo winch 211, a slider 213 connected to the other end of the lifting steel wire rope 212, and a slide rail for controlling the sliding trajectory of the slider 213; the fixed part of the rotating joint 221 is connected to the slider 213.

[0031] With such a setting, under the action of the servo winch 211, the rotating device 22 can drive a plurality of nozzles 33 to move up and down in the cavity of the sand bin 1; when the bin needs to be cleared, the nozzles 33 start from the top of the silt in the sand bin 1 and gradually clear the deposited tailings from top to bottom, and then the tailings are discharged from the sand discharge pipe 4 at the bottom of the sand bin 1; the advantage of this technology is that due to the action of gravity, the sediment in the upper part is usually softer, so the amount of water and the flow rate required for the dredging scheme from top to bottom are very low, which not only ensures energy conservation but also has little impact on the sand discharge concentration.

[0032] Specifically, in some embodiments of the present invention, the slide rail includes a mounting seat 2141 provided at the bottom of the sand bin 1 and a plurality of slide rail steel wires 2142 for connecting the hanging bracket 23 and the mounting seat 2141, and the slide rail steel wires 2142 penetrate through the slider 213.

[0033] With such a setting, the degrees of freedom of the left - right, front - back movement and rotation of the slider 213 are restricted, and the up - down sliding of the slider 213 is more efficiently ensured.

[0034] Specifically, in some embodiments of the present invention, the rotating member includes a mounting frame 2221 with one end connected to the rotary joint 221, a rotating arm 2222 connected to the other end of the mounting frame 2221, and a limiting mechanism 2223 provided on the mounting frame 2221. Preferably, the number of the mounting frame 2221 and the rotating arm 2222 is two; the mounting frame 2221 and the rotating arm 2222 are symmetrically arranged on both sides of the slider 213.

[0035] With such a setting, the limiting mechanism 2223 can limit the upward turning of the rotating arm 2222 under the action of water power and ensure the stability of the rotating arm 2222.

[0036] Specifically, in some embodiments of the present invention, the connection mode between the mounting frame 2221 and the rotating arm 2222 includes hinged connection.

[0037] With such a setting, the rotating arm 2222 can be folded and drooped, which is convenient for subsequent smooth removal from the sand bin 1.

[0038] Specifically, in some embodiments of the present invention, the water supply device includes a water drum 311 provided on the hanging bracket 23, a high - pressure water pipe 312 connected to the inlet of the water drum 311, and a water pump 313 provided on the high - pressure water pipe 312; the water pump 313 includes a plunger pump.

[0039] The pipeline includes a first water pipe 321 connected to the wire outlet of the water drum 311 and penetrating through the slider 213, and a second water pipe 322 connected to the rotating member; the water outlet end of the first water pipe 321 is connected to the water inlet on the fixing member 2211 of the rotary joint 221; the water inlet end of the second water pipe 322 is connected to the water outlet on the rotating member 2212 of the rotary joint 221; the fixing member 2211 and the rotating member 2212 of the rotary joint 221 are rotatably connected by steel balls 2213.

[0040] With such an arrangement, when the rotating arm 2222 rotates, it can ensure continuous water flow between the first water pipe 321 and the second water pipe 322 connected to the fixing member 2211 of the rotary joint 221, while ensuring that the rotating arm 2222 is not entangled by the pipeline.

[0041] The arrangement of the second water pipe 322 includes that the second water pipe 322 is wound around the rotating arm 2222 and / or the extending direction of the second water pipe 322 is parallel to the extending direction of the rotating arm 2222; the spray head 33 is connected to a plurality of branch pipes on the second water pipe 322; the direction of the water spray port of the spray head 33 includes: the angle with the horizontal direction is acute and downward, or when the rotating arm 2222 rotates, the direction of the water spray port of the spray head 33 on the rotating arm 2222 is consistent with the rotating direction; (taking the number of the rotating arms 2222 as two as an example, when the rotating arms 2222 are symmetrically arranged on both sides of the slider 213, from the perspective of a top view, the water spray directions of the spray heads 33 on the rotating arms 2222 on both sides are opposite)

[0042] With such an arrangement, when the spray head 33 on the rotating arm 2222 is arranged obliquely downward, the silt is removed by the hydraulic jet; and when the spray head 33 on the rotating arm 2222 is arranged such that when the rotating arm 2222 rotates, the direction of the water spray port of the spray head 33 on the rotating arm 2222 is consistent with the rotating direction, the rotating arm 2222 can also be driven to rotate at a certain speed by the hydraulic force, reducing the power provided by the machine for the rotating arm 2222, and making the coverage area of the entire hydraulic jet wider while saving energy.

[0043] Specifically, in some embodiments of the present invention, the rotating member of the rotary joint 221 is connected to the rotating device 22 by a tension wire rope 24.

[0044] With such an arrangement, when recovery is required, the tension wire rope 24 is directly loosened, and the rotating arm 2222 naturally hangs down under the action of gravity, facilitating the overall recovery.

[0045] The sand bin cleaning device provided by the present invention will be specifically described below in conjunction with embodiments.

[0046] Embodiment

[0047] As Figures 1 to 3 shown, this embodiment provides a sand bunker cleaning device, including: a cleaning device, a control device for controlling the movement of the cleaning device, and a sand discharge pipe 4 provided at the bottom of the sand bunker 1;

[0048] The control device includes a traction device for controlling the cleaning device, a rotating device 22 connected to the traction device and provided inside the cavity of the sand bunker 1, and a tower-type hanger for supporting the traction device; the rotating device 22 includes a rotating joint 221 with one end connected to the traction device, and a rotating member connected to the other end of the rotating joint 221 and located inside the cavity of the sand bunker 1;

[0049] The cleaning device includes a water supply device provided on the tower-type hanger, a pipeline connected to the water supply device, and a plurality of nozzles 33 connected to the pipeline and provided on the rotating member.

[0050] The traction device includes a servo winch 211 provided on the tower-type hanger, a lifting steel wire rope 212 with one end connected to the interface of the servo winch 211, a slider 213 connected to the other end of the lifting steel wire rope 212, and a slide rail for controlling the sliding track of the slider 213; one end of the rotating joint 221 is connected to the slider 213.

[0051] The slide rail includes a mounting seat 2141 provided at the bottom of the sand bunker 1, and two slide rail steel wire ropes 2142 for connecting the platform on the tower-type hanger and the mounting seat 2141, and the slide rail steel wire ropes 2142 pass through the slider 213; both of the two steel wire ropes are tightened by turnbuckles.

[0052] The rotating member includes a mounting frame 2221 with one end connected to the rotating joint 221, a rotating arm 2222 connected to the other end of the mounting frame 2221, and a limiting mechanism 2223 provided on the mounting frame 2221. The number of the mounting frame 2221 and the rotating arm 2222 is two; the mounting frame 2221 and the rotating arm 2222 are symmetrically arranged on both sides of the slider 213.

[0053] The connection manner between the mounting frame 2221 and the rotating arm 2222 is hinged; in addition, the lugs of the mounting frame 2221 and the lugs of the rotating arm 2222 are also connected by a tension steel wire rope 24.

[0054] The water supply device includes a water drum 311 provided on the tower-type hanger, a high-pressure water pipe 312 connected to the incoming line of the water drum 311, and a plug-type water pump provided on the high-pressure water pipe 312.

[0055] The pipeline includes a first water pipe 321 connected to the wire outlet of the water drum 311 and penetrating through the slider 213, and a second water pipe 322 connected to the rotating member; the water outlet end of the first water pipe 321 is connected to the water inlet on the fixing member 2211 of the rotary joint 221; the water inlet end of the second water pipe 322 is connected to the water outlet on the rotating member 2212 of the rotary joint 221; there are two water outlets on the rotating member 2212 of the rotary joint 221, and there are two second water pipes 322, and the two second water pipes 322 are respectively connected to the two water outlets on the rotating member 2212 of the rotary joint 221; the fixing member 2211 and the rotating member 2212 of the rotary joint 221 are rotatably connected by steel balls 2213; the fixing member 2211 of the rotary joint 221 is connected to the slider 213 through a flange; the rotating member 2212 of the rotary joint 221 is connected to the mounting bracket 2221 through a flange.

[0056] The extending direction of the second water pipe 322 is parallel to the extending direction of the rotating arm 2222; the spray head 33 is connected to a plurality of branch pipes on the second water pipe 322; the direction of the water spray port of the spray head 33 is: when the rotating arm 2222 rotates, the direction of the water spray port of the spray head 33 on the rotating arm 2222 is the same as the rotating direction.

[0057] The working process of a sand bin cleaning device provided by the present invention will be described below:

[0058] As Figures 1 to 3 shown, when starting to clean the sand bin 1, under the action of the servo winch 211, the rotating device 22 can drive a plurality of spray heads 33 to move up and down in the cavity of the sand bin 1. At the same time, under the action of the rotary joint 221, the rotating arm 2222 can also rotate; when cleaning the bin is required, the spray heads 33 start from the top of the silt in the sand bin 1 and gradually clean the silted tail sand from top to bottom, and then the tail sand is discharged from the sand discharge pipe 4 at the bottom of the sand bin 1; the advantage of this technology is that due to the action of gravity, the sediment in the upper part is usually softer, so the amount of water and the flow rate required for the dredging scheme from top to bottom are very low, which not only ensures energy conservation but also has little impact on the sand discharge concentration.

[0059] In summary, the present utility model provides a sand bin cleaning device. By setting a cleaning device and a control device, the control device includes a traction device connected to the cleaning device, and a rotating device connected to the traction device and arranged in the sand bin cavity. The rotating device includes a rotary joint and a rotating member connected to the rotary joint and located in the sand bin cavity. The cleaning device includes a water supply device, a pipeline connected to the water supply device, and a nozzle connected to the pipeline and arranged on the rotating member. Thus, under the action of the traction device, the rotating device can drive the nozzle to move up and down in the cavity of the sand bin. When the sand bin needs to be cleaned, the nozzle gradually clears the accumulated tail sand from top to bottom starting from the top of the silt in the sand bin, and then the tail sand is discharged from the sand discharge pipe at the bottom of the sand bin. The advantage of this technology is that due to the action of gravity, the sediment in the upper part is usually relatively soft. Therefore, the amount of water and the flow rate required for the dredging scheme from top to bottom are very low, which not only ensures energy conservation but also has a small impact on the sand discharge concentration.

[0060] The above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A sand bin emptying device, characterized in that, Comprising: A cleaning device and a control device for controlling the movement of the cleaning device; The control device includes a traction device for controlling the cleaning device and a rotating device connected to the traction device and disposed within the sand bin cavity; the rotating device includes a rotating joint with one end connected to the traction device and a rotating member connected to the other end of the rotating joint and located within the sand bin cavity; The cleaning device includes a water supply device, a pipeline connected to the water supply device, and a plurality of nozzles connected to the pipeline and disposed on the rotating member.

2. The sand bin emptying device according to claim 1, wherein: The rotating member includes a mounting bracket with one end connected to the rotating joint, a rotating arm connected to the other end of the mounting bracket, and a limiting mechanism disposed on the mounting bracket.

3. The sand bin emptying device according to claim 2, characterized in that: The nozzles are connected to a plurality of branch pipes on the pipeline.

4. The sand bin emptying device according to claim 1, characterized in that: The control device further includes a hanger for supporting the traction device.

5. The sand bin emptying device according to claim 4, characterized in that: The water supply device includes a water drum disposed on the hanger, a high-pressure water pipe connected to the inlet of the water drum, and a water pump disposed on the high-pressure water pipe.

6. The sand bin emptying device according to claim 5, characterized in that: The traction device includes a servo winch disposed on the hanger, a lifting wire rope with one end connected to the interface of the servo winch, a slider connected to the other end of the lifting wire rope, and a slide rail for controlling the sliding trajectory of the slider; the fixing member of the rotating joint is connected to the slider.

7. The sand bin emptying device according to claim 6, characterized in that: The pipeline is connected to the outlet of the water drum and penetrates through the slider.

8. The sand bunker emptying device according to claim 6, characterized in that: The slide rail includes a mounting base disposed at the bottom of the sand bin and a plurality of slide rail wire ropes for connecting the hanger and the mounting base, and the slide rail wire ropes penetrate through the slider.

9. The sand bunker emptying device according to claim 3, characterized in that: The connection manner between the mounting bracket and the rotating arm includes hinged connection.

10. The sand bin emptying device according to claim 1, characterized in that: The rotating member of the rotating joint is connected to the rotating device through a tension wire rope.

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