Sand storage and conveying equipment

Abstract

A sand storage and sand transporting device is provided. The sand storage and sand transporting device comprises a sand storage device, at least two first conveying devices and a lifting device. The sand storage device comprises at least two sand storage tanks arranged along a first direction; the at least two first conveying devices are arranged along the first direction and are configured to respectively transport sand to the at least two sand storage tanks; the lifting device comprises a support frame and at least two lifting assemblies connected to the support frame, the at least two lifting assemblies are arranged along the first direction, and each of the at least two lifting assemblies is configured to lift a container filled with sand and put the container filled with sand into at least one first conveying device. The sand storage and sand transporting device uses two or more lifting assemblies and two or more first conveying devices to transport sand to the sand storage device, which can increase the transmission efficiency by multiples, improve the storage speed, and meet the operation requirements of large amounts of sand.

Description

Technical Field

[0001] An embodiment of the present disclosure relates to a sand storage and conveying device. Background Art

[0002] In the fracturing operation of oil and gas fields, fracturing proppants are needed to support the cracks produced by fracturing. After the ore bed is treated by fracturing, the oil and gas-bearing rock formations are cracked, and the oil and gas are collected from the channels formed by the cracks. The fracturing proppants are used to enter the formation along with the high-pressure liquid to fill the cracks in the rock formation, which can support the cracks from closing due to stress release, thereby maintaining high conductivity, allowing oil and gas to flow smoothly and increasing production.

[0003] The transportation and storage of fracturing proppants is an important part of oil and gas field operations. In order to ensure the continuity of sand supply during fracturing, sand storage and transportation equipment is required. The sand storage and transportation equipment can store the proppant and transport the stored proppant outward. Summary of the invention

[0004] At least one embodiment of the present disclosure provides a sand storing and conveying equipment, comprising: a sand storing device, comprising at least two sand storage tanks arranged along a first direction; at least two first conveying devices, the at least two first conveying devices are arranged along the first direction and are configured to convey sand to the at least two sand storage tanks respectively; and a lifting device, comprising a support frame and at least two lifting assemblies connected to the support frame, the at least two lifting assemblies are arranged along the first direction, and each of the at least two lifting assemblies is configured to lift a container filled with sand and put the container filled with sand into at least one first conveying device.

[0005] For example, in the sand storing and conveying equipment provided in one embodiment of the present disclosure, each of the at least two lifting assemblies includes: a mobile frame, connected to the supporting frame, and configured to move along a first direction relative to the supporting frame; a picking component, connected to the mobile frame, and configured to move along a second direction and a third direction relative to the mobile frame, and the picking component is also configured to be detachably connected to a container filled with sand, the second direction is the arrangement direction of the sand storage device and the lifting device, and the third direction intersects with the plane where the first direction and the second direction are located; at least two of the at least two lifting assemblies are arranged along the first direction.

[0006] For example, in the sand storage and transporting equipment provided in one embodiment of the present disclosure, the support frame includes a guide rail frame extending along a first direction, and the guide rail frame is provided with a sliding guide rail connected to at least two mobile frames; the at least two mobile frames are configured to move between a first end and a second end of the sliding guide rail.

[0007] For example, in the sand storing and conveying equipment provided by an embodiment of the present disclosure, each of the at least two sand storage tanks includes a top surface, the top surface includes a plane area provided with a feed port and an inclined surface area inclined from the edge of the plane area toward the bottom of the sand storage device; inclined surface areas are provided on both sides of the plane area in the second direction, and the second direction is perpendicular to the first direction.

[0008] For example, in the sand storing and conveying equipment provided by an embodiment of the present disclosure, each sand storage tank includes at least two sand storage bins, and the at least two sand storage bins are arranged along a first direction, and a feed port is provided on the top surface of each sand storage bin; each sand storage tank also includes at least one dividing valve, and each dividing valve is provided between two feed ports, and each dividing valve is configured to receive sand from a first conveying device, and respectively convey the sand to a feed port connected to the dividing valve.

[0009] For example, in a sand storing and conveying device provided in an embodiment of the present disclosure, the dividing valve includes a shell and a baffle arranged inside the shell, the shell forms an inlet, a first outlet and a second outlet, a first channel is formed between the inlet and the first outlet, and a second channel is formed between the inlet and the second outlet, and the baffle is configured to close one of the first channel and the second channel and open the other channel; the vertical distance between the top surface of the inlet of the shell and the bottom of the sand storage device is greater than the vertical distance between the top surface of the sand storage tank and the bottom of the sand storage device; the side surface of the shell connecting the inlet and the first outlet is an inclined surface, and the side surface of the shell connecting the inlet and the second outlet is an inclined surface.

[0010] For example, in the sand storage and conveying equipment provided in one embodiment of the present disclosure, the support frame includes a mounting frame and a hanger connected to the mounting frame, and the hanger is connected to the guide rail frame; the vertical distance between one end of the hanger away from the mounting frame and the bottom of the support frame is greater than the vertical distance between one end of the hanger close to the mounting frame and the bottom of the support frame.

[0011] For example, the sand storing and conveying equipment provided in one embodiment of the present disclosure also includes: a second conveying device, located on one side of at least two sand storage tanks close to the bottom of the sand storage device, configured to receive and convey the sand output by the at least two sand storage tanks; a third conveying device, docked with the second conveying device, configured to receive the sand conveyed by the second conveying device and convey the sand to the destination equipment.

[0012] For example, the sand storage and conveying equipment provided in one embodiment of the present disclosure further includes: a rotation driving device, connected to the third conveying device, and configured to drive the third conveying device to rotate relative to the second conveying device.

[0013] For example, in the sand storage and sand transporting equipment provided in one embodiment of the present disclosure, the sand storage device includes: a gate valve, which is arranged at the discharge port of the sand storage device; and a gate valve driving device, which is configured to adjust the opening of the gate valve to adjust the discharge speed of the sand storage device.

[0014] For example, in the sand storing and conveying equipment provided in one embodiment of the present disclosure, each of the sand storage tanks includes a fixed tank body and an expansion bin; the sand storing and conveying equipment also includes at least two expansion bin driving devices, and the at least two expansion bin driving devices are configured to respectively drive the expansion bins of the at least two sand storage tanks to rise and fall, so as to respectively adjust the capacity of the at least two sand storage tanks.

[0015] For example, in the sand storage and sand transporting equipment provided by an embodiment of the present disclosure, the sand storage and sand transporting equipment also includes a processing device; each expansion bin driving device includes an expansion bin lifting component, wherein the expansion bin lifting component drives the expansion bin to rise and fall, and each expansion bin driving device is also configured to send the lifting height of the expansion bin lifting component to the processing device; the processing device is configured to adjust the expansion bin lifting components of at least two expansion bin driving devices based on the lifting height of the expansion bin lifting components of at least two expansion bin driving devices.

[0016] For example, in the sand storage and sand transporting equipment provided by an embodiment of the present disclosure, the processing device is configured to: when the difference between the lifting height of the expansion bin lifting component of any one of the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is greater than a predetermined threshold, adjust the lifting height of the expansion bin lifting component of at least one expansion bin driving device so that the difference between the lifting height of the expansion bin lifting component of any one of the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is less than or equal to the predetermined threshold.

[0017] For example, in the sand storage and transporting equipment provided in one embodiment of the present disclosure, the second conveying device includes a first conveyor belt, a first conveyor belt drive motor for driving the first conveyor belt to operate, and a first state detection component for detecting the operating state of the first conveyor belt; the third conveying device includes a second conveyor belt, a second conveyor belt drive motor for driving the second conveyor belt to operate, and a second state detection component for detecting the operating state of the second conveyor belt; the second state detection component is also configured to: send operating state information about the second conveyor belt to the processing device; the processing device is also configured to: control the first conveyor belt drive motor to stop operating when the operating state information of the second conveyor belt indicates that the second conveyor belt has stopped operating.

[0018] For example, in the sand storing and conveying equipment provided in one embodiment of the present disclosure, the first state detection component is also configured to: send operating state information about the first conveyor belt to the processing device; the processing device is also configured to: when the operating state information of the first conveyor belt indicates that the first conveyor belt has stopped operating, control the gate valve drive device to close the gate valve.

[0019] For example, the sand storing and conveying equipment provided in one embodiment of the present disclosure also includes: an opening detection device, configured to detect the actual opening of the gate valve, and send the actual opening to the processing device; a speed detection device, configured to detect the actual operating speed of the first conveyor belt, and send the actual operating speed to the processing device; a weight detection device, configured to detect the actual amount of sand discharged by the sand storage device, and send the actual amount of sand discharged to the processing device.

[0020] For example, in the sand storing and conveying equipment provided in an embodiment of the present disclosure, the processing device is further configured to: send a control signal to the gate valve driving device based on the target sand discharge amount and the type information of the sand material in the sand storage device to control the opening of the gate valve; determine the theoretical sand discharge amount based on the actual opening of the gate valve and the type information of the sand material; control the operating speed of the first conveyor belt based on the theoretical sand discharge amount; send a control signal to the rotating drive device based on the actual operating speed of the first conveyor belt and the theoretical sand discharge amount to control the inclination angle of the third conveying device relative to the second conveying device.

[0021] For example, in the sand storage and transporting equipment provided in an embodiment of the present disclosure, the processing device is also configured to: control the operating speed of the first conveyor belt in real time based on the actual amount of sand discharged and the actual operating speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, but are not intended to limit the present disclosure.

[0023] Figure 1 A structural schematic diagram of a sand storage and conveying equipment is shown;

[0024] Figure 2 A schematic structural diagram of a sand storage and conveying device provided by at least one embodiment of the present disclosure is shown;

[0025] Figure 3 A schematic structural diagram of a lifting device in a sand storage and transporting device provided by at least one embodiment of the present disclosure is shown;

[0026] Figure 4A schematic structural diagram of a sand storage device in a sand storage and sand transporting device provided by at least one embodiment of the present disclosure is shown;

[0027] Figure 5 A schematic diagram of the connection structure of a sand storage device in a sand storage and sand transporting device provided by at least one embodiment of the present disclosure is shown;

[0028] Figure 6 A schematic diagram of fasteners of a sand storage device in a sand storage and sand transporting device provided by at least one embodiment of the present disclosure is shown;

[0029] Figure 7 A schematic diagram of a guide column of a sand storage device in a sand storage and sand transporting device provided by at least one embodiment of the present disclosure is shown;

[0030] Figure 8 A top schematic diagram of a sand storage device in a sand storage and sand transporting device provided by at least one embodiment of the present disclosure is shown;

[0031] Fig. 9 A cross-sectional schematic diagram of a sand storage device in a sand storage and sand transporting device provided by at least one embodiment of the present disclosure is shown;

[0032] Fig.10 A cross-sectional schematic diagram of a material distribution valve in a sand storage and transporting device provided by at least one embodiment of the present disclosure is shown;

[0033] Fig.11 A schematic diagram of a first conveying device in a sand storage and conveying device provided by at least one embodiment of the present disclosure is shown;

[0034] Fig.12 A schematic diagram of another sand storage and transporting device provided by at least one embodiment of the present disclosure is shown;

[0035] Fig.13 A connection diagram of a processing device provided by at least one embodiment of the present disclosure is shown;

[0036] Fig.14 A schematic block diagram of a second conveying device in a sand storage and conveying device provided by at least one embodiment of the present disclosure is shown;

[0037] Fig.15 A schematic block diagram of a third conveying device in a sand storage and conveying device provided by at least one embodiment of the present disclosure is shown;

[0038] Fig.16 A schematic flow chart of a control method provided by at least one embodiment of the present disclosure is shown;

[0039] Fig.17 A schematic flow chart of another control method provided by at least one embodiment of the present disclosure is shown;

[0040] Fig.18 A schematic flow chart of another control method provided by at least one embodiment of the present disclosure is shown;

[0041] Fig.19 A schematic block diagram of a processing device provided by at least one embodiment of the present disclosure is shown;

[0042] Fig. 20 A schematic block diagram of an electronic device provided by at least one embodiment of the present disclosure is shown;

[0043] Fig.21 A schematic diagram of the structure of another electronic device provided for at least one embodiment of the present disclosure; and

[0044] Fig. 22 A schematic diagram of a storage medium provided for at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0046] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] In the embodiments of the present disclosure, the fracturing proppant may be referred to as sand material, and the "sand material" and "sand" in the following description may all refer to the fracturing proppant.

[0048] Figure 1The figure shows a structural schematic diagram of a sand storage and sand transport equipment. Figure 1 As shown, the sand storage and sand transporting equipment may include a sand storage tank 110, a set of belt conveyors 120, a crane 130, an electrical system and an electric control system (not shown in the figure), etc.

[0049] The crane 130 hoists the bagged sand into the hopper of the belt conveyor 120. After the bag is broken in the hopper of the belt conveyor 120, the material falls onto the belt of the belt conveyor 120, and the material is transported to the sand storage tank 110 through the belt to store the sand in the sand storage tank 110. In some embodiments, the sand storage tank 110 may have two sand storage bins arranged along a first direction (e.g., X-axis direction), each sand storage bin having a feed port and a discharge port, and the belt conveyor 120 may be configured to be movable along the first direction, so as to use a set of belt conveyors 120 to transport sand to the two sand storage bins. The crane 130 may have functions such as automatic hoisting, one-button positioning, and one-button return, and the hoisting and sand adding efficiency is high. The electric control system is the control system of the sand storage and sand conveying equipment.

[0050] Figure 1 The sand storage and conveying equipment shown in the figure has changed the traditional crane high-altitude sand adding mode. The equipment integrates sand storage, sand conveying and sand hoisting in one, avoiding dangerous high-altitude operations. At the same time, there is no need to hire expensive cranes to add sand, which also creates economic benefits for well site operations. However, with the demand for large amounts of sand in fracturing operations, the single-hanging and single-belt method used in the sand storage and conveying equipment has a small conveying capacity, slow material storage speed, and the conveying efficiency cannot meet the needs of large sand operations.

[0051] At least one embodiment of the present disclosure provides a sand storage and sand transporting device. The other sand storage and sand transporting device includes a sand storage device, at least two first conveying devices and a lifting device. The sand storage device includes at least two sand storage tanks arranged along a first direction; the at least two first conveying devices are arranged along the first direction and are configured to transport sand to the at least two sand storage tanks respectively; the lifting device includes a support frame and at least two lifting assemblies connected to the support frame, the at least two lifting assemblies are arranged along the first direction, and each of the at least two lifting assemblies is configured to lift a container filled with sand and put the container filled with sand into at least one first conveying device. The sand storage and sand transporting device uses two or more lifting assemblies and two or more first conveying devices to transport sand to the sand storage device, which can increase the transmission efficiency by multiples, improve the storage speed, and meet the operation requirements of large amounts of sand.

[0052] Figure 2 A schematic structural diagram of a sand storage and transporting device provided by at least one embodiment of the present disclosure is shown.

[0053] like Figure 2As shown, the sand storage and sand transporting equipment 200 includes a sand storage device 210, at least two first conveying devices 220 and a lifting device 230. The sand storage device 210 includes at least two sand storage tanks 211 arranged along a first direction. The at least two first conveying devices 220 are arranged along the first direction and are configured to respectively convey sand to the at least two sand storage tanks 211. The lifting device 230 includes a support frame 231 and at least two lifting assemblies 232 connected to the support frame, the at least two lifting assemblies 232 are arranged along the first direction, and each of the at least two lifting assemblies 232 is configured to lift a container filled with sand and put the container filled with sand into at least one first conveying device 220.

[0054] For example, the first direction can be Figure 2 The X-axis direction is shown.

[0055] For example, in the following embodiments and drawings, the sand storage device 210 includes two sand storage tanks 211, the sand storage and sand transport equipment includes two first transport devices 220, and the lifting device 230 includes two lifting assemblies 232. However, the embodiments of the present disclosure are not limited thereto. In some embodiments, the sand storage device 210 may include three or more sand storage tanks 211, the sand storage and sand transport equipment includes three or more first transport devices 220, and the lifting device 230 includes three or more lifting assemblies 232. The number of sand storage tanks 211, the first transport devices 220, and the lifting assemblies 232 may be the same.

[0056] For example, one sand storage tank 211 corresponds to one first conveying device 220 and one lifting assembly 232, and a sand storage line can be formed. That is, when N sand storage tanks 211, N first conveying devices 220 and N lifting assemblies 232 are provided, N sand storage lines can be formed, where N is an integer greater than or equal to 2.

[0057] For example, for the lifting device 230, N (two or more) lifting components 232 can be connected to a support frame 231, and the N lifting components 232 can operate independently without interfering with each other. Each lifting component 232 can lift a container filled with sand from the ground or from a transport machine (such as a transport vehicle), and the container filled with sand can be a bag filled with sand, hereinafter referred to as bagged sand. After the lifting component 232 lifts the bagged sand, it can drive the bagged sand to move above the entrance of the corresponding first conveying device 220 and put it into the entrance of the corresponding first conveying device 220.

[0058] For example, the first conveying device 220 can be a conveyor, including a hopper part 221, a feeding part 222 and a dropping part 223. The hopper part 221 can serve as the entrance of the conveyor, and the feeding part 222 includes a conveyor belt. The lifting assembly 232 can put the bagged sand into the hopper part 221, and the hopper part 221 can break the bagged sand. After breaking the bag, the sand in the bag can fall on the conveyor belt of the feeding part 222, and the conveyor belt transports the sand upward to the feed port of the corresponding sand storage tank 211, so that the sand enters the sand storage tank 211 from the feed port, thereby realizing the transmission and storage of the sand. Compared with the method in the related art that the equipment only adopts one first conveying device, the embodiment of the present disclosure adopts two or more first conveying devices, which can reduce the load of each first conveying device, thereby extending the life of the wearing parts and improving the overall stability of the equipment.

[0059] For example, in one example, N (two or more) lifting assemblies 232 can deliver bagged sand to N first conveying devices 220, respectively. Figure 2 As shown, the lifting assembly 232 located on the left side is configured to deliver bagged sand to the first conveying device 220 on the left side, and the lifting assembly 232 located on the right side is configured to deliver bagged sand to the first conveying device 220 on the right side.

[0060] For example, in another example, each lifting assembly 232 can deliver bagged sand to the N first conveying devices 220. Figure 2 As shown, the lifting assembly 232 on the left side can deliver bagged sand to the first conveying device 220 on the left side, and can also move to the top of the first conveying device 220 on the right side to deliver bagged sand to the first conveying device 220 on the right side. The lifting assembly 232 on the right side can deliver bagged sand to the first conveying device 220 on the right side, and can also move to the top of the first conveying device 220 on the left side to deliver bagged sand to the first conveying device 220 on the left side. Based on this scheme, the two lifting assemblies 232 can serve as backup for each other. When one lifting assembly 232 fails, the other lifting assembly 232 can be used to replace the failed lifting assembly 232 to complete the corresponding lifting work.

[0061] According to the sand storage and sand conveying equipment of the embodiment of the present disclosure, two or more lifting components and two or more first conveying devices are used to convey sand to the sand storage device, which can increase the transmission efficiency by multiples, improve the storage speed, and meet the operation requirements of large amounts of sand.

[0062] Figure 3 FIG. 1 is a schematic diagram showing the structure of a lifting device provided by at least one embodiment of the present disclosure. Figure 3As shown, the lifting device 230 includes a support frame, which may include a base 2311, a stand 2312, a mounting frame 2313, a hanger 2314 and a guide rail frame 2315.

[0063] For example, the base 2311 can be located on a supporting surface such as the ground, the first end of the stand 2312 is connected to the base 2311, and the second end of the stand 2312 extends upward from the base 2311 along a third direction (for example, the Z-axis direction). The support frame may include two stands 2312 respectively connected to both sides of the base 2311 (on both sides along the X-axis direction).

[0064] For example, the mounting frame 2313 is connected to the second end of the vertical frame 2312 (i.e., the end away from the base 2311) and is located between the two vertical frames 2312. The first end of the hanger 2314 is connected to the mounting frame 2313, and the second end of the hanger 2314 extends forward from the mounting frame 2313 along the second direction (e.g., the Y-axis direction). The support frame may also include a suspension rod 2316, which may be connected between the mounting frame 2313 and the second end of the hanger 2314 (i.e., the end away from the mounting frame 2313), and the suspension rod 2316 may make the mounting frame 2313 more stable. The support frame may include two edge hangers 2314 respectively connected to both sides of the mounting frame 2313 (both sides along the X-axis direction). In some embodiments, in addition to the two edge hangers 2314, one or more intermediate hangers 2314 may be provided between the two hangers 2314 to improve stability.

[0065] For example, the support frame includes a guide frame 2315 extending along a first direction, for example, may include two guide frames 2315, one of which may be connected to a first end of a plurality of hangers 2314 (including two edge hangers 2314 and a middle hanger 2314), for example Figure 2 Another guide rail frame can be connected to the second end of the plurality of hangers 2314, for example Figure 2 The guide rail frame 2315 shown is located in the front. Both guide rail frames 2315 extend along the first direction (for example, the X-axis direction).

[0066] For example, each of at least two lifting assemblies includes a mobile frame 2321 and a pick-up component 2322. The mobile frame 2321 is connected to a support frame and is configured to move relative to the support frame along a first direction (e.g., X-axis direction). The pick-up component 2322 is connected to the mobile frame 2321 and is configured to move relative to the mobile frame 2321 along a second direction (e.g., Y-axis direction) and along a third direction (e.g., Z-axis direction), and the pick-up component 2322 is also configured to be detachably connected to a container containing sand material. The second direction is the arrangement direction of the sand storage device and the lifting device, and the third direction intersects with the plane where the first direction and the second direction are located. For example, when the sand storage and sand transporting equipment is erected on a horizontal support surface such as the ground, the first direction, the second direction and the third direction are perpendicular to each other, and the third direction can be a vertical direction. At least two mobile frames 2321 in at least two lifting assemblies are arranged along the first direction.

[0067] For example, the guide rail frame 2315 is provided with a sliding guide rail connected to at least two moving frames 2321. For example, both ends of each moving frame 2321 are respectively connected to the front and rear guide rail frames 2315, and the front and rear guide rail frames 2315 can both be provided with a sliding guide rail extending along the first direction. In this case, both ends of each moving frame 2321 are respectively connected to the front and rear sliding guide rails and can move along the sliding guide rails, that is, move along the first direction.

[0068] For example, in one example, at least two mobile racks 2321 are configured to move between the first end and the second end of the sliding rail. Based on this approach, the sliding range of each mobile rack 2321 is consistent, and each can move from one end of the sliding rail to the other end of the sliding rail. In this case, if a mobile rack 2321 fails, other mobile racks 2321 can be used to replace the failed mobile rack 2321 to complete the corresponding work.

[0069] For example, in another example, the sliding guide rail can be divided into at least two sliding sections, and at least two moving frames 2321 are respectively configured to move in the at least two sliding sections. Figure 3 As shown, the midpoint of the movable frame 2315 along the X-axis direction can be used as a dividing point to divide the sliding guide rail into two left and right sliding sections. The movable frame 2321 located on the left can move in the left sliding section, and the movable frame 2321 located on the right can move in the right sliding section.

[0070] For example, under normal working conditions, at least two mobile racks 2321 can move in their respective sliding sections respectively. When a mobile rack 2321 fails, the moving range of another mobile rack adjacent to the failed mobile rack 2321 can be expanded to the sliding section of the failed mobile rack 2321 so that the other mobile rack can replace the failed mobile rack 2321.

[0071] For example, the lifting assembly may further include an electric hoist, and the object-retrieving component 2322 may be the object-retrieving part of the electric hoist, such as a hook of the electric hoist. One or more electric hoists may be connected to a mobile frame 2321. Each electric hoist may move forward and backward along the mobile frame 2321 (i.e., move along the Y-axis direction), and the electric hoist may use a connecting line to move the hook up and down (i.e., move along the Z-axis direction). During the operation of the lifting assembly, the mobile frame 2321 may be first controlled to move above the bagged sand stacking position, and then the position of the electric hoist may be adjusted forward and backward to align the electric hoist with the bagged sand, the rope may be released to move the hook of the electric hoist downward and hook the bagged sand, and the electric hoist may be controlled to retract the rope to allow the hook to lift the bagged sand. Then change the position of the movable frame 2321 and / or the electric hoist so that the lifted bagged sand is aligned with the hopper part 221, release the rope to move the hook of the electric hoist downward, and control the hook to separate from the bagged sand when the hook reaches a position close to the hopper part 221, so that the bagged sand falls into the hopper part 221.

[0072] For example, if two lifting assemblies 232 are hoisted alternately, the hoisting efficiency of the entire equipment can be increased by 1.5 times.

[0073] Figure 4 A schematic structural diagram of a sand storage device provided by at least one embodiment of the present disclosure is shown; Figure 5 A schematic diagram of the connection structure of a sand storage device provided by at least one embodiment of the present disclosure is shown; Figure 6 A schematic diagram of a fastener of a sand storage device provided by at least one embodiment of the present disclosure is shown; Figure 7 A schematic diagram of a guide column of a sand storage device provided in at least one embodiment of the present disclosure is shown.

[0074] like Figure 4 As shown, the sand storage device 210 may include multiple layers of sand tanks arranged along the third direction (Z-axis direction), for example, including three layers of sand tanks: a top tank F1, a middle tank F2, and a bottom tank F3. The three tanks are interconnected, for example, sand injected from the top tank can flow downward into the middle tank, and can further flow from the middle tank into the bottom tank. The adjacent layers of sand tanks can be connected by the following method: Figure 5 The connection frame shown in the figure can be connected by Figure 7 The guide posts 214 at the four corners and the guide posts 214 at the side Figure 6 Fasteners 213 (eg, bolts) are shown to aid in installation and securing.

[0075] Figure 8 FIG. 2 shows a schematic diagram of the top surface of a sand storage device provided by at least one embodiment of the present disclosure. Figure 8As shown, for example, each of the at least two sand storage tanks includes a top surface, and the top surface includes a plane area 2111 provided with a feed port and an inclined surface area 2112 inclined from the edge of the plane area toward the bottom of the sand storage device. The plane area 2111 is provided with inclined surface areas 2112 on both sides in the second direction, and the second direction is perpendicular to the first direction.

[0076] For example, the plane area 2111 may be parallel to the XY plane, and two inclined areas 2112 may be provided on both sides of the plane area 2111 along the second direction (Y-axis direction), and the two inclined areas 2112 extend to both sides of the plane area 2111 and tilt downward. Based on this method, compared with the large flat top surface with closed sides in the related art, the top inclined area of ​​the embodiment of the present disclosure can allow the accumulated sand and water to flow to the ground along the inclined surface, which can effectively reduce the accumulated sand and water on the top of the top tank, thereby improving the working conditions of the top tank, and avoiding the problem in the related art that the accumulated sand and water bury the electric lever of the feed port cover, causing frequent damage to the electric cylinder, and affecting the stability of the equipment.

[0077] Fig. 9 FIG. 2 shows a cross-sectional schematic diagram of a sand storage device provided by at least one embodiment of the present disclosure. Figure 4 , Figure 8 and Fig. 9 As shown, each sand storage tank may include at least two sand storage bins, at least two sand storage bins are arranged along the first direction, and a feed port is provided on the top surface of each sand storage bin. For example, the sand storage device includes a sand storage tank A and a sand storage tank B, sand storage tank A includes a sand storage bin A1 and a sand storage bin A2, sand storage tank B includes a sand storage bin B1 and a sand storage bin B2, and sand storage bins A1, A2, B1 and B2 are sequentially arranged along the first direction (X-axis direction). Sand storage bins A1, A2, B1 and B2 all have a feed port and a discharge port. Combined with Figure 2 and Figure 5 As shown, each sand storage tank further includes at least one material dividing valve 215, each material dividing valve 215 is arranged between two feed ports, and each material dividing valve 215 is configured to receive sand material from a first conveying device 220, and convey the sand material to a feed port connected to the material dividing valve 215. For example, the feed port of the sand storage bin A1 and the feed port of the sand storage bin A2 are provided with the same material dividing valve, and under the action of the material dividing valve, the sand material conveyed by the first conveying device 220 on the left can enter the sand storage bin A1 or the sand storage bin A2. The feed port of the sand storage bin B1 and the feed port of the sand storage bin B2 are provided with the same material dividing valve, and under the action of the material dividing valve, the sand material conveyed by the first conveying device 220 on the right can enter the sand storage bin B1 or the sand storage bin B2.

[0078] Fig.10 FIG. 2 shows a cross-sectional schematic diagram of a material distribution valve provided by at least one embodiment of the present disclosure. Fig.10As shown, for example, the dispensing valve 215 includes a housing and a baffle 2151 disposed inside the housing. The housing is formed with an inlet C1, a first outlet C2, and a second outlet C3. A first channel (e.g. Fig.10 A second channel (eg, channel D1 on the left side of the middle) is formed between the inlet C1 and the second outlet C3. Fig.10 The baffle 2151 is configured to close one of the first channel and the second channel and open the other channel.

[0079] For example, the first outlet C2 and the second outlet C3 are respectively aligned with two adjacent feed ports, so that the first channel and the second channel are respectively connected to two adjacent sand storage bins. If the baffle 2151 flips to the left into the first channel, the first channel is closed, the second channel is opened, and the sand material at the inlet C1 enters the sand storage bin connected to the second channel through the second channel. If the baffle 2151 flips to the right into the second channel, the second channel is closed, the first channel is opened, and the sand material at the inlet C1 enters the sand storage bin connected to the first channel through the first channel. In this way, the opening and closing of different channels can be achieved by controlling the flipping of the baffle, and then the sand material transmitted by the conveyor can be added to the two storage bins respectively. The baffle 2151 can be flipped by electric cylinder drive.

[0080] For example, combined with Figure 2 and Fig.10 As shown, the vertical distance between the top surface where the inlet of the dividing valve 215 is located and the bottom of the sand storage device 210 is greater than the vertical distance between the top surface of the sand storage tank 211 and the bottom of the sand storage device 210. In other words, the height of the top of the dividing valve 215 is greater than the height of the top surface of the sand storage device 210, and the dividing valve 215 protrudes upward for a distance relative to the top surface of the sand storage device 210. The side surface P1 of the shell of the dividing valve 215 connecting the inlet C1 and the first outlet C2 is an inclined surface, and the side surface P2 of the shell connecting the inlet C1 and the second outlet C3 is an inclined surface. Based on this method, by setting the dividing valve at the feed inlet, the structure of the electric cylinder direct push gate type in the related art is changed, so that the position of the electric cylinder is raised, and further, by setting the inclined surface of the dividing valve, the problem of damage to the electric cylinder caused by accumulated sand and water is avoided.

[0081] like Figure 3As shown, for example, the support frame includes a mounting frame 2313 and a hanger 2314 connected to the mounting frame, and the hanger 2314 is connected to the guide rail frame 2315. The vertical distance between the end of the hanger 2314 away from the mounting frame 2313 (the second end of the hanger) and the bottom of the support frame is greater than the vertical distance between the end of the hanger 2314 close to the mounting frame 2313 (the first end of the hanger) and the bottom of the support frame. In other words, the height of the second end of the hanger 2314 is greater than the height of the first end of the hanger 2314, so that the second end of the hanger 2314 rises relative to the first end, for example, the hanger 2314 rises 0.6 degrees relative to the XY plane. In this way, the deformation of the hanger 2314 after hoisting the sand material can be compensated, so that the hoisting is more stable and reliable.

[0082] Fig.11 FIG. 2 shows a schematic diagram of a first conveying device provided by at least one embodiment of the present disclosure. Figure 2 and Fig.11 As shown, the hopper part 221 of the first conveying device 220 includes a hopper 2211 fixedly arranged on one side of the sand storage tank. The feeding part 222 can adopt a conveying belt type, a screw conveyor type or a bucket lifting conveyor type. The first conveying device 220 is also provided with a sidewall conveyor belt 226, a driving roller 229, a redirecting roller 224, a roller 225, a stop roller 227, a fixed seat 228 and other components. The first conveying device 220 can adopt a fixed structure, which avoids the risk of the roller of the mobile structure derailing compared to the guide rail mobile belt conveyor used in the related art, and the fixed structure conveying device has relatively low requirements on the operating conditions and the flatness of the ground.

[0083] Fig.12 FIG. 2 is a schematic diagram of another sand storage and conveying device provided by at least one embodiment of the present disclosure. Fig.12 As shown, the sand storage and sand transporting equipment includes, in addition to the sand storage device 310, the first conveying device and the lifting device, a second conveying device 320 and a third conveying device 330. The second conveying device 320 is located on one side of at least two sand storage tanks near the bottom of the sand storage device, and is configured to receive and transport the sand output by at least two sand storage tanks. The third conveying device 330 is docked with the second conveying device 320, and is configured to receive the sand transported by the second conveying device 320 and transport the sand to the destination device.

[0084] For example, the sand storage device 310 may include at least two sand storage tanks 311 arranged along a first direction (e.g., the X-axis direction), and a discharge port may be provided below each sand storage tank 311. The second conveying device 320 may include a first conveyor belt and a first conveyor belt drive motor for driving the first conveyor belt to operate, and the conveying direction of the first conveyor belt may be, for example, parallel to the first direction. The first conveyor belt may be located below the at least two sand storage tanks 311 to receive the sand material falling from the discharge port of the sand storage tank 311 and transport the sand material to the third conveying device 330. In one example, the sand storage tank 311 may be understood as Figure 4 The sand storage tank A or B shown; in another example, the sand storage tank 311 can be understood as Figure 4 The sand storage bins A1, A2, B1 or B2 are shown.

[0085] For example, the third conveying device 330 may include a second conveyor belt and a second conveyor belt driving motor for driving the second conveyor belt. In one state, the second conveyor belt may dock with the first conveyor belt so that the sand material on the first conveyor belt is transferred to the second conveyor belt, and the second conveyor belt transports the sand material to other equipment, such as a fracturing equipment. The docking of the second conveyor belt with the first conveyor belt may be that the conveying surface (e.g., surface L2-L2) of the second conveyor belt docks with the conveying surface (e.g., surface L1-L1) of the first conveyor belt.

[0086] For example, Fig.12 As shown, the sand storage and sand transporting equipment further includes a processing device 350. For example, the processing device 350 may include a processor or a controller, etc. The processing device may be, for example, a microprocessor or a central processing unit (CPU), etc., or other forms of processing units with data processing capabilities and / or program execution capabilities. The processor may be a general-purpose processor or a dedicated processor, and may control other devices in the sand storage and sand transporting equipment to perform desired functions.

[0087] Fig.13 A connection diagram of a processing device provided by at least one embodiment of the present disclosure is shown. Fig.12 and Fig.13 As shown, for example, the sand storage and conveying equipment may further include a rotation drive device 340, which is connected to the third conveying device 330 and configured to drive the third conveying device 330 to rotate relative to the second conveying device 320. The rotation drive device 340 is communicatively connected to the processing device 350, and the processing device 350 may send a control signal to the rotation drive device 340 to control the rotation drive device 340 to drive the third conveying device 330 to rotate.

[0088] For example, the rotation drive device 340 may include a hydraulic cylinder (or oil cylinder), which includes a cylinder barrel and a piston rod. The piston rod can be extended and retracted relative to the cylinder barrel. The cylinder barrel and the piston rod can be connected to the sand storage device 310 and the third conveying device 330 respectively. During the extension and retraction of the piston rod, the third conveying device 330 can be driven to rotate, thereby changing the angle between the second conveying device 320 and the third conveying device 330. The angle between the second conveying device 320 and the third conveying device 330 can be the angle α between the conveying surface of the second conveying device 320 and the conveying surface of the third conveying device 330.

[0089] For example, in the working state, the third conveying device 330 can be controlled to rotate to be flush with the second conveying device 320, that is, the conveying surface of the third conveying device 330 is flush with the conveying surface of the second conveying device 320; or, the third conveying device 330 can be controlled to tilt downward relative to the second conveying device 320. The angle α between the second conveying device 320 and the third conveying device 330 is, for example, an angle between 180° and 250°.

[0090] For example, in a non-working state, the third conveying device 330 can be controlled to rotate to a predetermined angle, for example, to an angle α with the second conveying device 320 between 90° and 120°, so as to retract the third conveying device 330 and thereby reduce the overall size of the device along the first direction.

[0091] For example, Fig.13 As shown, the sand storage device 310 includes a gate valve 361 and a gate valve driving device 362. The gate valve 361 is arranged at the discharge port of the sand storage device 310, and the gate valve driving device 362 is configured to adjust the opening of the gate valve 361 to adjust the discharge speed of the sand storage device 310.

[0092] For example, the sand storage device 310 includes at least two sand storage tanks, each of which may be provided with a discharge port at the bottom, and a gate valve 361 may be provided at each discharge port. The gate valve driving device 362 may include, for example, a hydraulic cylinder or an electric push rod, and the piston rod of the hydraulic cylinder or the electric push rod may be used to control the opening of the gate valve. For example, the gate in the gate valve may block the discharge port, and the piston rod or the electric push rod may drive the gate to move. When the gate moves to different positions, the degree of blocking of the discharge port by the gate is different, and thus the discharge speed is also different. The gate valve driving device 362 is in communication connection with the processing device 350, and the processing device 350 may send a control signal to the gate valve driving device 362 to control the gate valve driving device 362 to adjust the opening of the gate valve 361.

[0093] like Fig.12 and Fig.13As shown, for example, each sand storage tank 311 includes a fixed tank body 3111 and an expansion bin 3112. The sand storage and sand transporting equipment further includes at least two expansion bin driving devices 370, and the at least two expansion bin driving devices 370 are configured to respectively drive the expansion bins 3112 of the at least two sand storage tanks 311 to rise and fall, so as to respectively adjust the capacity of the at least two sand storage tanks 311.

[0094] For example, each expansion bin 3112 may include a plurality of panels, for example, two panels arranged in a first direction (X-axis direction) and parallel to the YZ plane and two panels arranged in a second direction (Y-axis direction) and parallel to the XZ plane, that is, four panels including front, rear, left, and right panels, and the four panels are connected in sequence to enclose a storage space. The expansion bin driving device can drive the expansion bin 3112 to move along a third direction (Z-axis direction) relative to the fixed tank body 3111, that is, drive the expansion bin 3112 to move up and down relative to the fixed tank body 3111. When the expansion bin 3112 moves downward, the overall height of the sand storage tank 311 decreases, and the capacity of the sand storage tank 311 decreases; when the expansion bin 3112 moves upward, the overall height of the sand storage tank 311 increases, and the capacity of the sand storage tank 311 increases. The expansion bin driving device 370 is communicatively connected to the processing device 350 , and the processing device 350 can send a control signal to the expansion bin driving device 370 to control the expansion bin driving device 370 to adjust the lifting height of the expansion bin 3112 .

[0095] For example, each expansion bin driving device 370 includes an expansion bin lifting component, and the expansion bin lifting component drives the expansion bin 3112 to rise and fall, and each expansion bin driving device 370 is further configured to send the lifting height of the expansion bin lifting component to the processing device 350. The processing device 350 is configured to adjust the expansion bin lifting components of at least two expansion bin driving devices based on the lifting heights of the expansion bin lifting components of the at least two expansion bin driving devices.

[0096] For example, at least one expansion bin driving device 370 may be provided for each expansion bin. The expansion bin driving device 370 may include a hydraulic cylinder, and the hydraulic cylinder includes a piston rod. The piston rod may be used to drive the expansion bin to rise and fall, and the lifting height of the expansion bin is related to the telescopic length of the piston rod. The expansion bin lifting component may be a hydraulic cylinder, and the lifting height of the expansion bin lifting component may be the telescopic length of the piston rod of the hydraulic cylinder. For example, the expansion bin driving device 370 also includes an expansion bin lifting detection component, and the expansion bin lifting detection component is configured to detect the lifting height of the expansion bin lifting component. The lifting detection component may be, for example, a displacement sensor.

[0097] For example, the processing device 350 can communicate with the expansion bin lifting detection component of each expansion bin driving device, and the expansion bin lifting detection component of each expansion bin driving device is configured to send the lifting height of the expansion bin lifting component to the processing device 350. The expansion bin lifting detection component and the expansion bin lifting component of each expansion bin driving device can be numbered respectively, and the number of the expansion bin lifting detection component in each expansion bin driving device can correspond to the number of the expansion bin lifting component. When the lifting detection component sends data to the processing device 350, the number information of the expansion bin lifting detection component can be added, so that the processing device 350 can determine which expansion bin lifting detection component the data comes from, and then determine which expansion bin lifting component the data corresponds to.

[0098] For example, the processing device is configured to: when the difference between the lifting height of the expansion bin lifting component of any one of the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is greater than a predetermined threshold, adjust the lifting height of the expansion bin lifting component of at least one expansion bin driving device so that the difference between the lifting height of the expansion bin lifting component of any one of the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is less than or equal to the predetermined threshold.

[0099] For example, after obtaining data from each expansion bin lifting detection component, the processing device can determine the lifting height of each expansion bin lifting component according to the data of the expansion bin lifting detection component. When it is detected that the difference between the lifting height of any expansion bin lifting component (e.g., the first expansion bin lifting component) and the average lifting height of the remaining expansion bin lifting components is greater than a preset error threshold (predetermined threshold), at least adjust the lifting height of the expansion bin lifting component (e.g., the first expansion bin lifting component) until the difference between the lifting height of any expansion bin lifting component and the average lifting height of the remaining expansion bin lifting components is less than or equal to the preset error threshold. For example, the error threshold can be determined according to actual needs, and the embodiment of the present disclosure does not limit this. For example, a sand storage and sand transporting equipment includes three sand storage tanks, the first sand storage tank includes a first expansion bin lifting component and a first expansion bin lifting detection component for detecting the lifting height of the first expansion bin lifting component, the second sand storage tank includes a second expansion bin lifting component and a second expansion bin lifting detection component for detecting the lifting height of the second expansion bin lifting component, and the third sand storage tank includes a second expansion bin lifting component and a second expansion bin lifting detection component for detecting the lifting height of the second expansion bin lifting component. If it is detected that the difference between the lifting height of the first expansion bin lifting component and the average lifting height of the second expansion bin lifting component and the third expansion bin lifting component is greater than a predetermined threshold, at least the lifting height of the first expansion bin lifting component is adjusted so that the difference between the lifting height of any expansion bin lifting component (the first expansion bin lifting component, the second expansion bin lifting component and the third expansion bin lifting component) and the average lifting height of the remaining expansion bin lifting components is less than or equal to the predetermined threshold. Based on this method, the lifting height error of the expansion bin lifting component can be maintained within a reasonable range to ensure that the expansion bin heights of each sand storage tank are consistent, thereby keeping the capacity of the sand storage tanks consistent.

[0100] For example, each expansion bin includes M panels, where M is an integer greater than 1, and the shape of the panels can be a flat plate, a folded plate (e.g., an L-shape), an arc, a semicircle, etc. For example, four flat panels can form an expansion bin, and two folded plate panels can form an expansion bin. Each sand storage tank can include M panel driving devices, and the M panel driving devices are respectively used to drive the M panels to rise and fall (i.e., move along the third direction). The processing device is in communication connection with the M panel driving devices of each expansion bin to control the M panel driving devices of each expansion bin to respectively drive the M panels to rise and fall.

[0101] For example, the processing device is further configured to: for each sand storage tank, based on the lifting height of the apron lifting components of the M apron driving devices, adjust the apron lifting components of the M apron driving devices. For example, the apron driving device can be a hydraulic cylinder, and the hydraulic cylinder includes a piston rod, and the apron can be driven to lift and lower the piston rod, and the lifting height of the apron is related to the telescopic length of the piston rod. The apron lifting component can be a hydraulic cylinder, and the lifting height of the apron lifting component can be the telescopic length of the piston rod of the hydraulic cylinder. For example, each apron driving device also includes an apron lifting detection component, and the apron lifting detection component is configured to detect the lifting height of the apron lifting component, and the apron lifting detection component can be, for example, a displacement sensor.

[0102] For example, the processing device is configured as follows: for each sand storage tank, when the difference between the lifting height of the enclosure lifting components of any enclosure driving device among the M enclosure driving devices and the average lifting height of the enclosure lifting components of the remaining enclosure driving devices is greater than a predetermined threshold, the lifting height of the enclosure lifting components of at least one enclosure driving device is adjusted so that the difference between the lifting height of the enclosure lifting components of any enclosure driving device among the M enclosure driving devices and the average lifting height of the enclosure lifting components of the remaining enclosure driving devices is less than or equal to the predetermined threshold.

[0103] For example, for each sand storage tank, after obtaining the data of the enclosure lifting and lowering detection components of M enclosure driving devices, the processing device can determine the lifting height of each enclosure lifting component according to the data of the enclosure lifting and lowering detection components. When it is detected that the difference between the lifting height of any enclosure lifting component (for example, the first enclosure lifting component) and the average lifting height of the remaining enclosure lifting components is greater than a preset error threshold (predetermined threshold), at least the lifting height of the enclosure lifting component (for example, the first enclosure lifting component) is adjusted until the difference between the lifting height of any enclosure lifting component and the average lifting height of the remaining enclosure lifting components is less than or equal to the preset error threshold. For example, the error threshold can be determined according to actual needs, and the embodiments of the present disclosure are not limited to this. For example, a sand storage tank includes three enclosure driving devices: a first enclosure driving device, a second enclosure driving device and a third enclosure driving device, the first enclosure driving device includes a first enclosure lifting component and a first enclosure lifting detection component for detecting the lifting height of the first enclosure lifting component, the second enclosure driving device includes a second enclosure lifting component and a second enclosure lifting detection component for detecting the lifting height of the second enclosure lifting component, and the third enclosure driving device includes a third enclosure lifting component and a third enclosure lifting detection component for detecting the lifting height of the third enclosure lifting component. If it is detected that the difference between the lifting height of the first enclosure lifting component and the average lifting height of the second enclosure lifting component and the third enclosure lifting component is greater than a predetermined threshold, at least the lifting height of the first enclosure lifting component is adjusted so that the difference between the lifting height of any enclosure lifting component (the first enclosure lifting component, the second enclosure lifting component and the third enclosure lifting component) and the average lifting height of the remaining enclosure lifting components is less than or equal to the predetermined threshold. Based on this method, the lifting height error of each enclosure lifting component in each sand storage tank can be maintained within a reasonable range, thereby ensuring that the height of each enclosure of each sand storage tank is consistent.

[0104] For example, in the case where each sand storage tank is provided with M enclosure driving devices, the expansion bin driving device of each sand storage tank may be any enclosure driving device among the M enclosure driving devices included in the sand storage tank.

[0105] Fig.14 A schematic block diagram of a second transmission device provided by at least one embodiment of the present disclosure is shown. Fig.14 As shown, for example, the second conveying device 320 includes a first conveyor belt 321, a first conveyor belt driving motor 322 for driving the first conveyor belt 321 to operate, and a first state detection component 323 for detecting the operating state of the first conveyor belt 321. Fig.13 As shown, the first state detection component 323 is in communication connection with the processing device 350 .

[0106] Fig.15A schematic block diagram of a third transmission device provided by at least one embodiment of the present disclosure is shown. Fig.15 As shown, the third conveying device 330 includes a second conveyor belt 331, a second conveyor belt driving motor 332 for driving the second conveyor belt 331 to operate, and a second state detection component 333 for detecting the operating state of the second conveyor belt 331. Fig.13 As shown, the second state detection component 333 is in communication connection with the processing device 350 .

[0107] For example, the second state detection component 333 is further configured to send the operation state information about the second conveyor belt 331 to the processing device 350. The processing device 350 is further configured to control the first conveyor belt drive motor to stop running when the operation state information indicates that the second conveyor belt 331 stops running.

[0108] For example, the first state detection component 323 is further configured to send the operation state information about the first conveyor belt 321 to the processing device 350. The processing device 350 is further configured to control the gate valve driving device to close the gate valve when the operation state information indicates that the first conveyor belt 321 stops operating.

[0109] For example, in one example, the first state detection component 323 may be a speed sensor, which is used to detect the operating speed of the first conveyor belt 321. The operating speed of the first conveyor belt 321 may be used as the operating state information of the first conveyor belt 321, and then the processing device may determine whether the first conveyor belt 321 is operating normally according to the operating speed of the first conveyor belt 321. For example, when the operating speed of the first conveyor belt 321 is less than a certain speed threshold, it can be considered that the first conveyor belt 321 stops operating. Similarly, the second state detection component 333 may also be a speed sensor, which is used to detect the operating speed of the second conveyor belt 331. The operating speed of the second conveyor belt 331 may be used as the operating state information of the second conveyor belt 331.

[0110] For example, in another example, the first state detection component may include a switch sensor (such as a proximity switch) or an encoder, etc. The switch sensor or encoder may be installed on the first conveyor belt drive motor to monitor the running speed of the motor output shaft of the first conveyor belt drive motor. The running speed of the motor output shaft of the first conveyor belt drive motor may be used as the running state information of the first conveyor belt 321, and then the processing device may determine whether the first conveyor belt 321 is running normally according to the running speed of the motor output shaft of the first conveyor belt drive motor. For example, when the running speed of the motor output shaft of the first conveyor belt drive motor is less than a certain speed threshold, it can be considered that the first conveyor belt 321 stops running. Similarly, the second state detection component may also be a switch sensor or an encoder, etc., for monitoring the running speed of the motor output shaft of the second conveyor belt drive motor. The running speed of the motor output shaft of the second conveyor belt drive motor may be used as the running state information of the second conveyor belt 331.

[0111] For example, when the processing device detects that the second conveyor belt 331 of the third conveyor device 330 stops running, the first conveyor belt driving motor of the second conveyor device 320 is controlled to stop running, thereby stopping the first conveyor belt 321 of the second conveyor device 320. Based on this method, it is possible to prevent the sand material conveyed by the first conveyor belt 321 from accumulating on the second conveyor belt 331 when the second conveyor belt 331 stops.

[0112] For example, when the processing device 350 detects that the first conveyor belt 321 stops running, the gate valve driving device is controlled to close the gate valve, for example, the gate valves of all the sand storage tanks are closed, and the discharge ports of the sand storage tanks are closed, so that the sand in the sand storage tanks cannot fall onto the first conveyor belt 321. Based on this method, the sand can be prevented from accumulating on the first conveyor belt 321.

[0113] For example, when the second conveyor belt 331 stops running, controlling the first conveyor belt 321 to stop running can achieve primary interlocking protection. When the first conveyor belt 321 stops running, controlling the gate valve to close can achieve secondary interlocking protection. The two-level interlocking can minimize the occurrence of sand accumulation and protect the device.

[0114] For example, Fig.13 As shown, the sand storage and conveying equipment may further include an opening detection device 381, a rotation speed detection device 382, ​​and a weight detection device 383. The opening detection device 381, the rotation speed detection device 382, ​​and the weight detection device 383 are all connected to the processing device 350 for communication.

[0115] For example, the opening detection device 381 is configured to detect the actual opening of the gate valve and send the actual opening to the processing device. The opening detection device can be a switch sensor (such as a proximity switch) or a distance sensor, which can detect the position of the gate in the gate valve and then detect the opening of the gate valve.

[0116] For example, the rotation speed detection device 382 is configured to detect the actual running speed of the first conveyor belt and send the actual running speed to the processing device. The rotation speed detection device can be a speed sensor, and the rotation speed detection device and the first state detection component can be the same device.

[0117] For example, the weight detection device 383 is configured to detect the actual amount of sand discharged from the sand storage device, and send the actual amount of sand discharged to the processing device. For example, the weight detection device can be a weight sensor, and the weight sensor can include at least one of an electronic belt scale installed below the first conveyor belt, a weighing sensor installed at the bottom of each storage tank, and a material level measuring instrument located in the storage tank. For example, the electronic belt scale installed below the first conveyor belt can realize the instantaneous and cumulative metering functions of the sand amount, obtain the metering data, and the instantaneous flow rate is measured by measuring the weight difference at different times. In order to prevent instantaneous fluctuations or inaccurate measurement accuracy from appearing inaccurate data during the calculation process, the data can be compared and judged during the calculation process. When the data is too large or too small, the system considers this data as invalid data. After removing the invalid data, all valid data are weighted averaged to obtain the instantaneous flow rate at this time. For example, the material level measuring instrument may measure the material level by radar, ultrasonic, wire, guided wave radar, laser, capacitance, inductance or laser measurement methods. In addition, intermittent measurement of the material level may be achieved by installing multiple switch sensors on the material wall. The types of switch sensors include but are not limited to capacitive switches, inductive switches, tuning fork switches and mechanical switches.

[0118] For example, the processing device 350 is also configured to: send a control signal to the gate valve driving device to control the opening of the gate valve based on the target sand discharge amount and the type information of the sand material in the sand storage device; determine the theoretical sand discharge amount based on the actual opening of the gate valve and the type information of the sand material; control the operating speed of the first conveyor belt based on the theoretical sand discharge amount; send a control signal to the rotating driving device based on the operating speed of the first conveyor belt and the theoretical sand discharge amount to control the inclination angle of the third conveying device relative to the second conveying device.

[0119] For example, the type information of the abrasive material may include density information of the abrasive material, and the density information may include true density and apparent density.

[0120] For example, a target sand amount can be preset according to actual needs, and the opening of the gate valve can be determined according to the target sand amount and the density information of the sand material. For example, the processor can store some matching data, and the matching data can include the corresponding relationship between multiple sand amounts and multiple density information and multiple gate valve openings. The target sand amount and the density information of the sand material can be matched with the matching data to find the corresponding gate valve opening information from the matching data as the theoretical opening of the gate valve. The processing device 350 can control the gate valve driving device to adjust the opening of the gate valve to the theoretical opening. In one example, sand can be supplied in multiple sand storage tanks in sequence. For example, the gate valve of the first sand storage tank is opened first to use the first sand storage tank to supply sand, and the gate valves of other sand storage tanks are closed. When the sand material remaining in the first sand storage tank is small, the first sand storage tank is closed, and the gate valve of the second sand storage tank is opened to use the second sand storage tank to supply sand. By analogy, in this example, controlling the opening of the gate valve can refer to controlling the gate valve opening of the sand storage tank currently responsible for supplying sand. In another example, two or more sand storage tanks may be used to supply sand together. In this example, controlling the opening of the gate valve may refer to controlling the opening of each gate valve of the two or more sand storage tanks responsible for supplying sand.

[0121] For example, the actual opening of the gate valve can be determined based on the data sent by the opening detection device, and then the actual opening of the gate valve and the type information of the sand material can be used to determine the current theoretical amount of sand. The theoretical amount of sand can be determined by searching for matching data.

[0122] For example, the theoretical operating speed of the first conveyor belt can be determined according to the theoretical sand amount. The matching data can also include a correspondence between multiple sand amounts and multiple operating speeds, and the theoretical sand amount can be matched with the matching data to find the corresponding operating speed from the matching data as the theoretical operating speed of the first conveyor belt. The processing device 350 can control the first conveyor belt drive motor to adjust the operating speed of the first conveyor belt to the theoretical operating speed.

[0123] For example, the inclination angle of the third conveying device 330 can be determined according to the theoretical operating speed and theoretical amount of sand discharged of the first conveyor belt, and the inclination angle of the third conveying device 330 can be the angle α between the third conveying device 330 and the second conveying device 320. For example, the matching data can also include the correspondence between multiple operating speeds and multiple amounts of sand discharged and multiple inclination angles, and the theoretical operating speed and theoretical amount of sand discharged of the first conveyor belt can be matched with the matching data to find the corresponding inclination angle from the matching data as the theoretical inclination angle of the third conveying device 330. The processing device 350 can control the rotation drive device 340 to adjust the inclination angle of the third conveying device 330 to the theoretical inclination angle.

[0124] For example, the processing device 350 is further configured to control the operating speed of the second conveying device in real time based on the actual sand discharge amount and the actual operating speed.

[0125] For example, during the operation of the second transmission device and the third transmission device, the actual amount of sand discharged from the weight detection device can be received in real time (for example, every predetermined time period, such as 1 second to 10 seconds), and matching data can be found according to the actual amount of sand discharged to obtain the theoretical operating speed of the first conveyor belt, and the first conveyor belt drive motor can be controlled to adjust the operating speed of the first conveyor belt to the theoretical operating speed, and the actual operating speed from the speed detection device can be used to verify whether the actual operating speed of the first conveyor belt has been adjusted to the theoretical operating speed. If not, the operating speed of the first conveyor belt is continuously adjusted until the actual operating speed of the first conveyor belt is the theoretical operating speed. Based on this method, the rotation speed of the first conveyor belt can be adjusted in real time to ensure that the first conveyor belt works in a better state, which can not only ensure the normal operation of the system, but also avoid energy waste.

[0126] The sand storage and conveying equipment provided by the embodiment of the present disclosure can realize automatic adjustment of components such as the gate valve, the second transmission device and the third transmission device, which can save manpower and make the adjustment and control work more precise.

[0127] The disclosed embodiment also provides a control method for sand storage and sand transporting equipment.

[0128] Fig.16 FIG. 1 is a schematic flow chart of a control method provided by at least one embodiment of the present disclosure. Fig.16 As shown, the control method may include steps S110 and S120.

[0129] Step S110: receiving the lifting heights of the expansion bin lifting components of at least two expansion bin driving devices.

[0130] Step S120: adjusting the expansion bin lifting components of the at least two expansion bin driving devices based on the lifting heights of the expansion bin lifting components of the at least two expansion bin driving devices.

[0131] For example, step S120 may further include: when the difference between the lifting height of the expansion bin lifting component of any expansion bin driving device among the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is greater than a predetermined threshold, adjusting the lifting height of the expansion bin lifting component of at least one expansion bin driving device so that the difference between the lifting height of the expansion bin lifting component of any expansion bin driving device among the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is less than or equal to the predetermined threshold.

[0132] Fig.17 FIG. 2 is a schematic flow chart of another control method provided by at least one embodiment of the present disclosure. Fig.17 As shown, the control method may further include steps S210 to S240.

[0133] In step S210: receiving the operating status information of the second conveyor belt.

[0134] In step S220: when the operation status information of the second conveyor belt indicates that the second conveyor belt has stopped operating, the first conveyor belt driving motor is controlled to stop operating.

[0135] In step S230: receiving the operation status information of the first conveyor belt.

[0136] In step S240: when the operation status information of the first conveyor belt indicates that the first conveyor belt stops operating, the gate valve driving device is controlled to close the gate valve.

[0137] Fig.18 FIG. 2 is a schematic flow chart of another control method provided by at least one embodiment of the present disclosure. Fig.18 As shown, the control method may further include steps S310 to S340.

[0138] Step S310: Based on the target sand delivery amount and the type information of the sand material in the sand storage device, a control signal is sent to the gate valve driving device to control the opening of the gate valve.

[0139] Step S320: Obtain the actual opening of the gate valve, and determine the theoretical amount of sand based on the actual opening of the gate valve and the type information of the sand material.

[0140] Step S330: Based on the theoretical amount of sand, control the operating speed of the first conveyor belt.

[0141] Step S340: Based on the actual operating speed of the first conveyor belt and the theoretical amount of sand, a control signal is sent to the rotary drive device to control the inclination angle of the third conveying device relative to the second conveying device.

[0142] For example, the control method may further include: controlling the operating speed of the first conveyor belt in real time based on the actual amount of sand deposited and the actual operating speed of the first conveyor belt.

[0143] Fig.19 A schematic block diagram of a processing device provided by at least one embodiment of the present disclosure is shown. Fig.19 As shown, for example, the processing device 350 may include a first control module 351 , a second control module 352 , a third control module 353 and a fourth control module 354 .

[0144] The first control module 351 is configured to adjust the expansion bin lifting components of the at least two expansion bin driving devices based on the lifting heights of the expansion bin lifting components of the at least two expansion bin driving devices.

[0145] The first control module 351 can be further configured to adjust the lifting height of the expansion bin lifting component of at least one expansion bin drive device when the difference between the lifting height of the expansion bin lifting component of any expansion bin drive device among the at least two expansion bin drive devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin drive devices is greater than a predetermined threshold, so that the difference between the lifting height of the expansion bin lifting component of any expansion bin drive device among the at least two expansion bin drive devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin drive devices is less than or equal to a predetermined threshold.

[0146] The second control module 352 is configured to control the first conveyor belt drive motor to stop running when the operating state information of the second conveyor belt indicates that the second conveyor belt has stopped running.

[0147] The third control module 353 is configured to control the gate valve driving device to close the gate valve when the operating state information of the first conveyor belt indicates that the first conveyor belt stops operating.

[0148] The fourth control module 354 is configured to send a control signal to the gate valve driving device to control the opening of the gate valve based on the target sand discharge amount and the type information of the sand material in the sand storage device; determine the theoretical sand discharge amount based on the actual opening of the gate valve and the type information of the sand material; control the operating speed of the first conveyor belt based on the theoretical sand discharge amount; and send a control signal to the rotating driving device based on the actual operating speed of the first conveyor belt and the theoretical sand discharge amount to control the inclination angle of the third conveying device relative to the second conveying device.

[0149] The fourth control module 354 may also be configured to control the operating speed of the first conveyor belt in real time based on the actual amount of sand deposited and the actual operating speed of the first conveyor belt.

[0150] For example, the first control module, the second control module, the third control module, and the fourth control module may be hardware, software, firmware, or any feasible combination thereof. For example, the first control module, the second control module, the third control module, and the fourth control module may be dedicated or general circuits, chips, or devices, or may be a combination of a processor and a memory. The embodiments of the present disclosure do not limit the specific implementation forms of the above-mentioned units.

[0151] At least one embodiment of the present disclosure also provides an electronic device.

[0152] Fig. 20A schematic block diagram of an electronic device provided by at least one embodiment of the present disclosure is shown. Fig. 20 As shown, the electronic device 400 includes a processor 410 and a memory 420. The electronic device 400 includes a processor 410 and a memory 420. The memory 420 is used to store non-transitory computer-readable instructions (e.g., one or more computer program modules). The processor 410 is used to run non-transitory computer-readable instructions, and when the non-transitory computer-readable instructions are run by the processor 410, one or more steps in the control method for the sand storage and sand transporting equipment described above can be executed. The memory 420 and the processor 410 can be interconnected through a bus system and / or other forms of connection mechanisms (not shown).

[0153] For example, the processor 410 may be a central processing unit (CPU), a graphics processing unit (GPU), or other forms of processing units having data processing capabilities and / or program execution capabilities. For example, the central processing unit (CPU) may be an X86 or ARM architecture, etc. The processor 410 may be a general-purpose processor or a dedicated processor, and may control other components in the electronic device 400 to perform desired functions.

[0154] For example, the memory 420 may include any combination of one or more computer program products, and the computer program product may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache), etc. Non-volatile memory may include, for example, read-only memory (ROM), hard disk, erasable programmable read-only memory (EPROM), portable compact disk read-only memory (CD-ROM), USB memory, flash memory, etc. One or more computer program modules may be stored on the computer-readable storage medium, and the processor 410 may run one or more computer program modules to implement various functions of the electronic device 400. Various applications and various data, as well as various data used and / or generated by the application, etc. may also be stored in the computer-readable storage medium.

[0155] It should be noted that, in the embodiment of the present disclosure, the specific functions and technical effects of the electronic device 400 can refer to the above description of the control method for the sand storage and sand transporting equipment, which will not be repeated here.

[0156] Fig.21 A schematic diagram of the structure of another electronic device provided by at least one embodiment of the present disclosure.

[0157] Fig.21The electronic device 500 shown is suitable for implementing the control method for sand storage and conveying equipment provided in the embodiment of the present disclosure. The electronic device 500 can be a terminal device such as a personal computer, a laptop, a tablet computer, a mobile phone, or a workstation, a server, a cloud service, etc. It should be noted that Fig.21 The electronic device 500 shown is merely an example and does not impose any limitation on the functions and scope of use of the embodiments of the present disclosure.

[0158] like Fig.21 As shown, the electronic device 500 may include a processing device (e.g., a central processing unit, a graphics processor, etc.) 510, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 520 or a program loaded from a storage device 580 into a random access memory (RAM) 530. In the RAM 530, various programs and data required for the operation of the electronic device 500 for the sand transport device are also stored. The processing device 510, the ROM 520, and the RAM 530 are connected to each other via a bus 540. An input / output (I / O) interface 550 is also connected to the bus 540.

[0159] Typically, the following devices may be connected to the I / O interface 550: an input device 560 including, for example, a touch screen, a touch pad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 570 including, for example, a liquid crystal display (LCC), a speaker, a vibrator, etc.; a storage device 580 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 590. The communication device 590 may allow the electronic device 500 to communicate with other electronic devices wirelessly or by wire to exchange data. Although Fig.21 The electronic device 500 is shown to include various devices, but it should be understood that it is not required to implement or possess all the devices shown, and the electronic device 500 may alternatively implement or possess more or fewer devices.

[0160] For example, according to an embodiment of the present disclosure, the control method for the sand storage and sand transporting equipment described above can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, and the computer program includes a program code for executing the above-mentioned control method. In such an embodiment, the computer program can be downloaded and installed from the network through the communication device 590, or installed from the storage device 580, or installed from the ROM 520. When the computer program is executed by the processing device 510, the functions defined in the control method for the sand storage and sand transporting equipment provided by the embodiment of the present disclosure can be executed.

[0161] At least one embodiment of the present disclosure further provides a storage medium for storing non-transitory computer program executable code (e.g., computer executable instructions). When the non-transitory computer program executable code is executed by a computer, the control method for sand storage and sand transporting equipment described in any embodiment of the present disclosure can be implemented; or, when the non-transitory computer program executable code is executed by a computer, the control method for sand storage and sand transporting equipment described in any embodiment of the present disclosure can be implemented.

[0162] Fig. 22 A schematic diagram of a storage medium provided by at least one embodiment of the present disclosure. Fig. 22 As shown, the storage medium 600 non-temporarily stores a computer program executable code 601. For example, when the computer program executable code 601 is executed by a computer, one or more steps in the control method for sand storage and sand transporting equipment described above can be executed.

[0163] For example, the storage medium 600 may be applied to the electronic device 400 or the electronic device 500. For example, the storage medium 600 may be the memory 420 in the electronic device 400 or the storage device 580 in the electronic device 500. For example, the description of the storage medium 600 may refer to Fig. 20 The memory 420 in the electronic device 400 shown or Fig.21 The corresponding description of the storage device 580 in the electronic device 500 is not repeated here.

[0164] There are a few points to note:

[0165] (1) The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures may refer to the general design.

[0166] (2) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0167] The above description is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A sand storage and conveying device, comprising: A sand storage device, comprising at least two sand storage tanks arranged along a first direction, each of the at least two sand storage tanks comprising a top surface, wherein the top surface comprises a plane area provided with a feed port and an inclined surface area inclined from an edge of the plane area toward a bottom of the sand storage device; At least two first conveying devices, wherein the at least two first conveying devices are arranged along the first direction and are configured to convey sand to the at least two sand storage tanks respectively; and A lifting device, comprising a support frame and at least two lifting assemblies connected to the support frame, wherein the at least two lifting assemblies are arranged along the first direction, and each of the at least two lifting assemblies is configured to lift a container filled with sand material and put the container filled with sand material into at least one of the first conveying devices; The device also includes: A second conveying device is located on one side of the at least two sand storage tanks close to the bottom of the sand storage device, and is configured to receive and convey the sand output by the at least two sand storage tanks; a third conveying device, docked with the second conveying device, configured to receive the sand material conveyed by the second conveying device and convey the sand material to a destination device; The device also includes: a rotation driving device connected to the third conveying device and configured to drive the third conveying device to rotate relative to the second conveying device; The sand storage device comprises: A gate valve is arranged at the discharge port of the sand storage device; a gate valve driving device, configured to adjust the opening of the gate valve to adjust the discharge speed of the sand storage device; Each of the sand storage tanks comprises a fixed tank body and an expansion bin; The sand storage and conveying equipment further comprises at least two expansion bin driving devices, wherein the at least two expansion bin driving devices are configured to respectively drive the expansion bins of the at least two sand storage tanks to rise and fall, so as to respectively adjust the capacities of the at least two sand storage tanks; The sand storage and conveying equipment also includes a processing device; Each of the expansion bin driving devices comprises an expansion bin lifting component, wherein the expansion bin lifting component drives the expansion bin to rise and fall, and each of the expansion bin driving devices is further configured to send the lifting height of the expansion bin lifting component to the processing device; The processing device is configured to adjust the expansion bin lifting components of the at least two expansion bin driving devices based on the lifting heights of the expansion bin lifting components of the at least two expansion bin driving devices; The processing device is configured as follows: When the difference between the lifting height of the expansion bin lifting component of any one of the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is greater than a predetermined threshold, the lifting height of the expansion bin lifting component of at least one expansion bin driving device is adjusted so that the difference between the lifting height of the expansion bin lifting component of any one of the at least two expansion bin driving devices and the average lifting height of the expansion bin lifting components of the remaining expansion bin driving devices is less than or equal to the predetermined threshold.

2. The device according to claim 1, wherein: Each of the at least two lifting assemblies comprises: a moving frame connected to the supporting frame and configured to move relative to the supporting frame along the first direction; a picking component connected to the mobile frame and configured to move relative to the mobile frame along a second direction and a third direction, the picking component is further configured to be detachably connected to the container containing sand, wherein the second direction is the arrangement direction of the sand storage device and the lifting device, and the third direction intersects with the plane where the first direction and the second direction are located; Wherein, at least two moving frames of the at least two lifting assemblies are arranged along the first direction.

3. The device according to claim 2, wherein: The support frame includes a guide rail frame extending along the first direction, and the guide rail frame is provided with a sliding guide rail connected to the at least two moving frames; The at least two moving frames are each configured to move between a first end and a second end of the sliding guide rail.

4. The device according to claim 1, wherein: The inclined surface areas are disposed on both sides of the planar area in a second direction, wherein the second direction is perpendicular to the first direction.

5. The device according to claim 4, wherein: Each of the sand storage tanks comprises at least two sand storage bins, the at least two sand storage bins are arranged along the first direction, and a feed port is disposed on the top surface of each of the sand storage bins; Each of the sand storage tanks also includes at least one material dividing valve, each of which is arranged between the two feed ports, and each of the material dividing valves is configured to receive sand from one of the first conveying devices and convey the sand to one of the feed ports connected to the material dividing valve.

6. The device according to claim 5, wherein: The dispensing valve comprises a shell and a baffle disposed inside the shell, the shell forms an inlet, a first outlet and a second outlet, a first channel is formed between the inlet and the first outlet, a second channel is formed between the inlet and the second outlet, and the baffle is configured to close one of the first channel and the second channel and open the other channel; The vertical distance between the top surface of the inlet of the shell and the bottom of the sand storage device is greater than the vertical distance between the top surface of the sand storage tank and the bottom of the sand storage device; A side surface of the shell connecting the inlet and the first outlet is an inclined surface, and a side surface of the shell connecting the inlet and the second outlet is an inclined surface.

7. The device according to claim 3, wherein: The support frame includes a mounting frame and a hanger connected to the mounting frame, and the hanger is connected to the guide rail frame; The vertical distance between one end of the hanger away from the mounting frame and the bottom of the support frame is greater than the vertical distance between one end of the hanger close to the mounting frame and the bottom of the support frame.

8. The device according to claim 1, wherein: The second conveying device includes a first conveyor belt, a first conveyor belt driving motor for driving the first conveyor belt to operate, and a first state detection component for detecting the operating state of the first conveyor belt; The third conveying device includes a second conveyor belt, a second conveyor belt driving motor for driving the second conveyor belt to operate, and a second state detection component for detecting the operating state of the second conveyor belt; The second state detection component is further configured to: send information about the operating state of the second conveyor belt to the processing device; The processing device is further configured to control the first conveyor belt drive motor to stop running when the running state information of the second conveyor belt indicates that the second conveyor belt has stopped running.

9. The device according to claim 8, wherein: The first state detection component is further configured to: send information about the operation state of the first conveyor belt to the processing device; The processing device is further configured to control the gate valve driving device to close the gate valve when the operating state information of the first conveyor belt indicates that the first conveyor belt stops operating.

10. The device according to claim 8, further comprising: an opening detection device, configured to detect an actual opening of the gate valve and send the actual opening to the processing device; a rotation speed detection device, configured to detect an actual operating speed of the first conveyor belt and send the actual operating speed to the processing device; The weight detection device is configured to detect the actual amount of sand discharged by the sand storage device and send the actual amount of sand discharged to the processing device.

11. The device according to claim 10, wherein: The processing device is further configured to: Based on the target sand discharge amount and the type information of the sand material in the sand storage device, a control signal is sent to the gate valve driving device to control the opening of the gate valve; Determine the theoretical amount of sand based on the actual opening of the gate valve and the type information of the sand material; Based on the theoretical amount of sand, controlling the running speed of the first conveyor belt; Based on the actual running speed of the first conveyor belt and the theoretical lower sand amount, a control signal is sent to the rotary drive device to control the inclination angle of the third conveying device relative to the second conveying device.

12. The device according to claim 11, wherein The processing device is further configured to: Based on the actual sand discharge amount and the actual operating speed, the operating speed of the first conveyor belt is controlled in real time.

Images