Material conveying system and method for determining material volume

Abstract

The invention provides a material conveying system and a material volume determining method.The material conveying system at least comprises a conveying device, at least part of the conveying device is obliquely arranged, and a feeding hopper is arranged on the lower feeding side of the conveying device; a feeding control device used for adjusting feeding flow is arranged on the feeding hopper, a discharging port is formed in the higher discharging side of the conveying device, materials are conveyed through the conveying device, and the volume of the materials is obtained. The embodiment of the invention is suitable for different use scenes, materials can be conveniently conveyed to the sand mixing device, and accurate material volume data of the conveyed materials can be obtained.

Description

Technical Field

[0001] The present disclosure relates to the technical field of material transportation. Specifically, it relates to a material transportation system and a method for determining the volume of materials. Background Art

[0002] At the oilfield fracturing operation site, a large amount of proppants need to be transported, including quartz sand, ceramsite sand, coated sand, etc. During the fracturing operation, the sand is added to the mixing tank for sand mixing as needed by the sand supply equipment. Usually, about 50 - 300 tons of sand need to be transported per hour, and the transportation volume is very large. The traditional transportation method is screw conveyor transportation, and the proportional addition of sand is realized by screw rotation speed measurement (transportation volume per revolution × rotation speed). For this reason, the screw conveyor is usually integrated on the sand mixing equipment. However, during the sand transportation process, it is easy to wear, and problems such as jamming are likely to occur between the blades and the conveyor pipe wall. Moreover, when measuring by rotation speed, the measurement coefficient cannot be accurately adjusted at different rotation speeds, and high-precision proppant transportation data cannot be obtained. And because in some cases the sand has humidity, the rotational friction force of the screw conveyor's screw blades will be very large, and transportation cannot be completed. Summary of the Invention

[0003] In view of this, the present disclosure aims to provide a material transportation system and a method for determining the volume of materials to at least partially solve the above technical problems in the prior art.

[0004] Based on the above problems, this solution solves the problems existing in the proppant measurement by a screw conveyor through a belt transportation method. A belt scale is installed on the belt transportation device, which can measure the transportation volume of the proppant in real time.

[0005] One aspect of the embodiments of the present disclosure provides a material transportation system. The material transportation system at least includes a transportation device. At least a part of the transportation device is inclined. An inlet hopper is provided on the relatively lower inlet side of the transportation device, and an inlet control device for adjusting the inlet flow rate is provided on the inlet hopper. An outlet is provided on the relatively higher outlet side of the transportation device. Materials are transported through the transportation device and weighed.

[0006] In some embodiments, the transportation device at least includes a conveyor belt, support rollers, a driving wheel, a driven wheel, and a driving motor. The driving wheel is provided on the outlet side and is connected to the driving motor. The driven wheel is provided on the inlet side. The conveyor belt is provided between the driving wheel and the driven wheel and is supported by a plurality of the support rollers.

[0007] In some embodiments, the material conveying system further includes a skid frame, the conveying device is arranged on the skid frame, a first fixing mechanism and a second fixing mechanism are arranged on the skid frame, the first fixing mechanism is connected to the discharge side to adjust the height of the discharge side, and the second fixing mechanism is connected to the feed hopper.

[0008] In some embodiments, the material conveying system further includes a skid frame, the conveying device is arranged on the skid frame, a first lifting mechanism and an adjusting assembly are arranged on the skid frame, the first lifting mechanism is connected to the discharge side to adjust the height of the discharge side, and the adjusting assembly is connected to the feed hopper to adjust the height and attitude of the feed hopper.

[0009] In some embodiments, the first lifting mechanism at least includes a telescopic oil cylinder and a telescopic rod, one end of the telescopic rod is rotatably connected to the skid frame, and the other end thereof is connected to the discharge side of the conveying device.

[0010] In some embodiments, the adjusting assembly includes a first rotating mechanism and a lifting mechanism connected in sequence, the first rotating mechanism is arranged on the skid frame, one end of the lifting mechanism is rotatably connected to the first rotating structure, and the other end thereof is rotatably connected to the feed hopper.

[0011] In some embodiments, the material conveying system includes traveling wheels, the conveying device is arranged on the traveling wheels, the traveling wheels include a first wheel and a second wheel, the first wheel is rotatably connected to the middle part of the conveying device through a support rod, the middle part of the support rod is connected to the discharge side of the conveying device through a second lifting mechanism, and the second lifting mechanism is rotatably connected to the support rod; the second wheel is connected to the feed side.

[0012] In some embodiments, a discharge section is arranged on the discharge side, a discharge port is arranged on the discharge section, and the discharge section is connected to the main body section of the conveying device by a flexible connection.

[0013] In some embodiments, a dust collector is further arranged on the discharge section.

[0014] In some embodiments, the conveying device includes a feed section, the feed section is horizontally arranged and forms a predetermined inclination angle with the main body section of the conveying device, and the feed section is connected to the main body section of the conveying device by a flexible connection.

[0015] In some embodiments, the conveyor belt includes a first conveyor belt and a second conveyor belt arranged oppositely, the first conveyor belt is matched with the feed section, and the second conveyor belt is matched with the main body section of the conveying device.

[0016] In some embodiments, a weighing sensor is disposed below the conveyor belt, and the weighing sensor cooperates with its corresponding weighing roller to achieve weighing.

[0017] In some embodiments, the weighing sensor is disposed below the weighing roller, and the weighing roller is connected to an elastic support member, and the weighing roller can move through the elastic support member.

[0018] In some embodiments, an imaging device is disposed at an intermediate position of the conveyor belt through a first fixing frame, and the imaging device achieves imaging by scanning or photographing to obtain the volume of the material.

[0019] In some embodiments, a predetermined sensor is disposed at an intermediate position of the conveyor belt through a second fixing frame, and the volume of the material is obtained based on the data collected by the predetermined sensor through an AI model.

[0020] In some embodiments, the predetermined sensor is a contact sensor or a non-contact sensor.

[0021] Another aspect of the embodiments of the present disclosure provides a method for determining the volume of a material, which is applicable to the material conveying system described in any one of the above, and the determination method obtains the volume of the material through at least one of a sensor weighing method, a three-dimensional solid reconstruction method, and an AI model prediction method.

[0022] In some embodiments, it further includes: changing the sand ratio and sand concentration of the mixed liquid by controlling the conveying speed of the conveying device and / or changing the sand ratio and sand concentration of the mixed liquid by controlling the feeding opening of the feeding hopper.

[0023] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the conveying of materials to the sand mixing device and obtaining accurate material volume data for the conveyed materials.

[0024] To make the above objects, features, and advantages of the present disclosure more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, is described in detail as follows. Description of the Drawings

[0025] In the drawings, which are not necessarily to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetical suffixes or different alphabetical suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used in conjunction with the description and the claims to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the device or method. The drawings herein are provided to further understand the present disclosure and form a part of this application. The illustrative embodiments and descriptions thereof are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0026] Figure 1 is a schematic structural view of a conveying device in an embodiment of a material conveying system provided by the present disclosure;

[0027] Figure 2 is a schematic internal structural view of a conveying device in an embodiment of a material conveying system provided by the present disclosure;

[0028] Figure 3 is a schematic structural view of a fixed-type conveying device in an embodiment of a material conveying system provided by the present disclosure;

[0029] Figure 4 is a schematic layout view of a fixed-type conveying device and a sand mixing device in an embodiment of a material conveying system provided by the present disclosure;

[0030] Figure 5 is a schematic structural view of a skid-mounted type conveying device in another embodiment of a material conveying system provided by the present disclosure;

[0031] Figure 6 is a schematic layout view of a skid-mounted type conveying device and a sand mixing device in another embodiment of a material conveying system provided by the present disclosure;

[0032] Figure 7 is a schematic structural view of a vehicle-mounted type conveying device in another embodiment of a material conveying system provided by the present disclosure;

[0033] Figure 8 is a schematic layout view of a vehicle-mounted type conveying device and a sand mixing device in another embodiment of a material conveying system provided by the present disclosure;

[0034] Figure 9 is a schematic view of a conveying device in another embodiment of a material conveying system provided by the present disclosure;

[0035] Figure 10 (a) and Figure 10(b) is an internal schematic diagram of the conveying device in another embodiment of the material conveying system provided by the present disclosure;

[0036] Figure 11 is a structural schematic diagram of the fixed-form conveying device in another embodiment of the material conveying system provided by the present disclosure;

[0037] Figure 12 is an arrangement schematic diagram of the fixed-form conveying device and the sand mixing device in another embodiment of the material conveying system provided by the present disclosure;

[0038] Figure 13 is a structural schematic diagram of the skid-mounted form conveying device in another embodiment of the material conveying system provided by the present disclosure;

[0039] Figure 14 is an arrangement schematic diagram of the skid-mounted form conveying device and the sand mixing device in another embodiment of the material conveying system provided by the present disclosure;

[0040] Figure 15 is a structural schematic diagram of the vehicle-mounted form conveying device in another embodiment of the material conveying system provided by the present disclosure;

[0041] Figure 16 is an arrangement schematic diagram of the vehicle-mounted form conveying device and the sand mixing device in another embodiment of the material conveying system provided by the present disclosure;

[0042] Figure 17 is a schematic diagram of the material weighing by the conveying device in another embodiment of the material conveying system provided by the present disclosure;

[0043] Figure 18 is a schematic diagram of the conveying device of the material conveying system based on the first metering principle;

[0044] Figure 19 is an arrangement schematic diagram of the weighing rollers of the conveying device of the material conveying system based on the first metering principle;

[0045] Figure 20 is a schematic diagram of the conveying device of the material conveying system based on the second metering principle;

[0046] Figure 21 is an arrangement schematic diagram of the imaging device and the conveyor belt of the conveying device of the material conveying system based on the second metering principle;

[0047] Figure 22 is a structural schematic diagram of the humidity sensor of the conveying device of the material conveying system based on the second metering principle;

[0048] Figure 23 is one of the schematic diagrams of the conveying device of the material conveying system based on the third metering principle;

[0049] Figure 24 It is the second schematic diagram of the conveying device of the material conveying system provided by the present disclosure based on the third metering principle;

[0050] Figure 25 It is the third schematic diagram of the conveying device of the material conveying system provided by the present disclosure based on the third metering principle;

[0051] Figure 26 It is a schematic diagram of the arrangement of the predetermined sensor and the conveyor belt of the conveying device of the material conveying system provided by the present disclosure based on the third metering principle.

[0052] Among them, the above-mentioned drawings include the following reference numerals:

[0053] 1 - conveying device; 1a - discharge section; 1b - feeding section; 2 - feeding hopper; 3 - feeding control device; 4 - discharge port; 5 - skid frame; 51 - first fixing mechanism; 52 - second fixing mechanism; 6 - first lifting mechanism; 7 - first rotating structure; 8 - lifting mechanism; 9 - second flexible connecting piece; 91 - second rotating connecting piece; 10 - dust collector; 11 - conveyor belt; 12 - supporting roller; 12a - weighing roller; 12b - elastic support; 13 - driving wheel; 14 - driven wheel; 15 - driving motor; 16 - weighing sensor; 17 - shield; 18 - first flexible connecting piece; 181 - first rotating connecting piece; 19 - support rod; 20 - second lifting mechanism; 21 - second connecting piece; 22 - discharger; 23 - display and control center; 24 - imaging device; 24a - first fixing frame; 25 - first speed sensor; 26 - predetermined sensor; 261 - housing; 262 - detection element; 263 - indicator light; 264 - correction button; 265 - communication line opening; 27 - second fixing frame; 271 - elastic member; 272 - contact sensor; 273 - non-contact sensor; 28 - second speed sensor; 29 - third speed sensor; 30 - walking wheel; 31 - first wheel; 32 - second wheel; 33 - towing hook; 40 - battery; 100 - sand mixing semi-trailer; 111 - first conveyor belt; 112 - second conveyor belt. Detailed Embodiments

[0054] Next, specific embodiments of the present disclosure will be described in detail with reference to the drawings, but it is not a limitation of the present disclosure.

[0055] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the above description should not be regarded as a limitation, but only as an example of the embodiments. Those skilled in the art will think of other modifications within the scope and spirit of the present disclosure.

[0056] The accompanying drawings, which are included in and form a part of this specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0057] These and other features of the present disclosure will become apparent from the following description of the preferred forms of the embodiments, given by way of non-limiting example, with reference to the accompanying drawings.

[0058] It should also be understood that although the present disclosure has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present disclosure, which have the features as described in the claims and thus are all within the scope of protection defined hereby.

[0059] The above and other aspects, features, and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0060] Specific embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure and can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but rather are merely a basis for the claims and a representative basis for teaching those skilled in the art to use the present disclosure in substantially any suitable detailed structure in a variety of ways.

[0061] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned accompanying drawings are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these process, method, product, or device.

[0062] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which may each refer to one or more of the same or different embodiments according to the present disclosure.

[0063] The first embodiment of the present disclosure provides a material conveying system, which can be connected to a sand mixing device having a sand mixing tank. The sand mixing device herein can be, for example, a sand mixing truck, a sand mixing skid, etc. The material conveying system is used to convey materials into the sand mixing device to achieve sand mixing operations.

[0064] As Figure 1 and Figure 2 shown, the material conveying system at least includes a conveying device 1. The conveying device 1 can be arranged on the ground. An inlet hopper 2 is arranged on the feeding side of the conveying device 1. A feeding control device 3 is arranged on the inlet hopper 2. A discharge port 4 is arranged on the discharging side of the conveying device 1. The inlet hopper 2 herein is used to store materials to be conveyed. Preferably, a vibrating screen is arranged inside the inlet hopper 2 to break up agglomerated materials to prevent large particle foreign matters from entering the conveying device 1.

[0065] To facilitate the next operation of the materials, the discharge port 4 is arranged facing, for example, the

[0066] sand mixing tank, so that the materials conveyed by the conveying device 1 can fall from the discharge port 4 into the sand mixing tank for, for example, sand mixing operations. Among them, since feeding is generally achieved through a transportation device such as a material transport vehicle and the sand mixing tank generally has a certain height, for this reason, in this embodiment, the feeding side is located on the relatively lower side of the conveying device 1, and the discharging side is located on the relatively higher side of the conveying device 1. The discharging side can be arranged at a relatively high position through devices such as a fixing mechanism and a liftable mechanism, so that the conveying device 1 can be arranged obliquely relative to the ground, and the conveying device 1 especially forms a predetermined inclination angle with the ground, so that the materials can fall into the sand mixing tank from the discharge port 4 by gravity.

[0067] Furthermore, the feeding control device 3 is used to control the feeding flow rate of the materials entering the conveying device 1 through the inlet hopper 2. The feeding control device 3 can be, for example, a feeding control valve arranged at the bottom of the inlet port 2, which adjusts the opening degree of the bottom outlet of the inlet hopper 2 to achieve the adjustment of the feeding flow rate. In addition, the feeding control device 3 can also be a screw conveyor, and the feeding flow rate is adjusted by controlling the rotation speed of the screw conveyor.

[0068] As Figure 2As shown, the conveying device 1 is used to transfer and convey materials. The transmission method inside the conveying device 1 can adopt various methods such as electric roller drive, belt drive, chain drive, etc. In one embodiment, the conveying device 1 at least includes a conveyor belt 11, support rollers 12, a driving wheel 13, a driven wheel 14, and a driving motor 15. Among them, the driving wheel 13 and the driven wheel 14 are arranged at a certain distance. The driving wheel 13 is connected to the driving motor 15 to be driven by the driving motor 15. The conveyor belt 11 is arranged between the driving wheel 13 and the driven wheel 14 and is supported by a plurality of the support rollers 12. Here, the rotation of the driving wheel 13 drives the movement of the conveyor belt 11 and the rotation of the driven wheel 14. The material is on the conveyor belt 11 and moves from the feeding side of the conveying device 1 to the discharging side along with the movement of the conveyor belt 11 to achieve transfer and conveyance. Here, in order to enhance the ability to convey materials, the surface of the conveyor belt 11 can be a rough structure or provided with a pattern structure, etc.

[0069] Further, the driving wheel 13 is arranged on the discharging side of the conveying device 1. The driving wheel 13 is arranged on the discharging side and is located at a relatively high position. The driving wheel 13 is driven by the driving motor 15. The driven wheel 14 is arranged on the feeding side of the conveying device 11 and is located at a relatively low position, for example, it can be arranged on the ground, so that the conveyor belt 11 is inclined. Here, the conveyor belt 11 can be set at different inclination angles.

[0070] Further, a weighing sensor 16 can also be arranged below the conveyor belt 11 to achieve real-time weighing of the materials conveyed on the conveyor belt 11 through the weighing sensor 16. Here, the weighing sensor 16 can cooperate with the support roller 12 in particular to achieve weighing of the materials.

[0071] In addition, the conveying device 1 can also include a protective cover 17. Here, the protective cover 17 is arranged outside the conveyor belt 11, mainly to prevent the materials conveyed on the conveyor belt 11 from being blown up in windy conditions and avoid situations such as dust polluting the environment.

[0072] The conveying device 1 of this embodiment is set to have a predetermined inclination angle to achieve feeding of materials from a low place, conveying them to a high place and then falling into the sand mixing tank, meeting the operation requirements of conveying materials from the feed hopper 2 to the sand mixing tank in the fracturing well site.

[0073] Specifically, when the material enters the feed hopper 2, a predetermined amount of the material is controlled by the feed control device 3 to fall onto the conveyor belt 11. Due to the action of friction, the material will move from the feed side to the discharge side along with the conveyor belt 11, that is, move upward and when reaching the highest point of the conveyor belt 11, it will fall into the sand mixing tank through the discharge port 4 under the action of gravity.

[0074] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the conveyance of materials to the sand mixing tank of the sand mixing device and enabling accurate material volume data to be obtained for the conveyed materials.

[0075] The second embodiment of the present disclosure provides a material conveying system, as Figures 3 - 6 shown. The material conveying system includes a conveying device 1. Here, the conveying device 1 can not only be fixedly arranged on the ground as described in the above embodiments, but also be arranged on the ground or on a vehicle in a skid-mounted manner to more conveniently achieve the conveyance of materials at various inclination angles. For example, Figure 4 and Figure 6 shown, the material conveying system can form a skid-mounted conveying device to achieve continuous operation with a sand mixing semi-trailer 100 having a sand mixing tank. The sand mixing tank is, for example, arranged at the rear of the sand mixing semi-trailer 100. Of course, continuous operation can also be achieved here with other sand mixing devices such as a sand mixing skid.

[0076] In this embodiment, as Figure 3 shown, the material conveying system further includes a skid frame 5. The conveying device 1 is arranged on the ground or, for example, on a vehicle through the skid frame 5. The skid frame 5 is provided with a first fixing mechanism 51 and a second fixing mechanism 52. The conveying device 1 and the feed hopper 2 are supported on the skid frame 5 through the first fixing mechanism 51 and the second fixing mechanism 52.

[0077] Among them, the first fixing mechanism 51 is connected to the discharge side of the conveying device 1, and the second fixing mechanism 52 is connected to the feed hopper 2. Here, the first fixing mechanism 51 and the second fixing mechanism 52 are, for example, both perpendicular to or arranged at a preset angle with respect to the skid frame 5, so that the discharge side of the conveying device 1 can be lifted to a predetermined height relative to the feed side, enabling the conveying device 1 to be inclined based on a predetermined inclination angle.

[0078] The lengths of the first fixing mechanism 51 and the second fixing mechanism 52 here and the angle between them and the skid frame 5 can be set as required, as long as the height of the discharge side of the conveying device 1 is higher than that of the feeding side. Preferably, both the first fixing mechanism 51 and the second fixing mechanism 52 are perpendicularly arranged with respect to the skid frame 5. More preferably, the length of the first fixing mechanism 51 is greater than that of the second fixing mechanism 52.

[0079] It should be noted that in this embodiment, the inclination degree of the conveying device 1 can be adjusted by adjusting the angle between the first fixing mechanism 51 and / or the second fixing mechanism 52 and the skid frame 5.

[0080] In another embodiment, as Figure 5 and Figure 6 shown, the material conveying system further includes a skid frame 5. The conveying device 1 is arranged on the ground or on a vehicle such as a truck through the skid frame 5. A first lifting mechanism 6 and an adjusting assembly are arranged on the skid frame 5. Here, the first lifting mechanism 6 is connected to the conveying device 1, especially to the side of the conveying device 1 close to the discharge side, and is used to lift the side of the conveying device 1 close to the discharge side so that the conveying device 1 is inclined at a predetermined inclination angle. Specifically, the height of the side of the conveying device 1 close to the discharge side can be adjusted through the first lifting mechanism 6, thereby adjusting the inclination degree of the conveying device 1.

[0081] Specifically, the first lifting mechanism 6 here at least includes a telescopic oil cylinder and a telescopic rod. One end of the telescopic rod is rotatably connected to the skid frame 5, and the other end is connected to the discharge side of the conveying device 1 for example. Based on the telescopic movement of the telescopic oil cylinder, the height of the discharge side of the conveying device 1 is adjusted through the telescopic rod, thereby realizing the adjustment of the inclination angle of the conveying device 1. In addition, the first lifting mechanism 6 also has a self-locking function to fix the conveying device 1 at a predetermined inclination angle, so as to meet the material conveying requirements of different heights and distances.

[0082] Furthermore, the adjustment assembly is disposed on the skid frame 5 and connected to the feed hopper 2. The adjustment assembly herein includes a first rotating mechanism 7 and a lifting mechanism 8 connected in sequence. Specifically, the first rotating mechanism 7 is disposed on the skid frame 5. One end of the lifting mechanism 8 is rotatably connected to the first rotating structure 7 and has the functions of limiting and self-locking, and the other end thereof is rotatably connected to the feed hopper 2 and has the functions of limiting and self-locking. During the mutual rotation between the lifting mechanism 8 and the first rotating structure 7 and between the lifting mechanism 8 and the feed hopper 2, the functions of limiting and self-locking can be achieved through any possible structure or method, such as by means of devices like hinges and limit blocks.

[0083] Considering that when the inclination angle of the conveying device 1 continuously increases, if the height of the feed hopper 2 remains unchanged, it will cause a collision between the conveyor belt 11 and the feed hopper 2. To avoid the above problem, the adjustment assembly is adopted to lift the height of the feed hopper 2 and adjust the attitude of the feed hopper 2, thereby avoiding the occurrence of collisions. In this way, not only can the feed hopper 2 be disposed on, for example, the ground, but also the rotating mechanism can be used to avoid the collision between the conveyor belt 11 and the feed hopper 2 when the inclination angle of the conveying device 1 is adjusted.

[0084] In this embodiment, the height and attitude of the feed hopper 2 can be adjusted by the adjustment assembly by adjusting the position and attitude of the lifting mechanism 8 through the first rotating mechanism 7, and adjusting the height and attitude of the feed hopper 2 through the lifting mechanism 8.

[0085] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the conveyance of materials to the sand mixing tank of the sand mixing device and enabling accurate acquisition of the volume data of the conveyed materials.

[0086] The third embodiment of the present disclosure provides a material conveying system, as Figures 3 - 6 shown, the material conveying system includes a conveying device 1. The conveying device 1 can not only be disposed in a skid-mounted manner. In this embodiment, the conveying device 1 can also move freely to achieve a vehicle-mounted manner, so as to facilitate the conveyance and transfer of materials at any position. For example Figure 7 and Figure 8 shown, the material conveying system can form a vehicle-mounted conveyor to achieve continuous operation with a sand mixing semi-trailer 100 having a sand mixing tank, and can also achieve continuous operation with a sand mixing skid, etc.

[0087] In addition, when the conveying device 1 is used in a vehicle-mounted manner, for long-distance transportation considerations, for example, the conveying device 1 can be hung on a tractor through a towing hook 33 to achieve long-distance transportation of the material conveying system. Specifically, when the conveying device 1 is arranged on a vehicle, when the material transmission operation is not required, the conveyor belt 11 can be retracted to facilitate the driving of the vehicle. When the material transmission operation is required, the conveyor belt 11 needs to be inclined based on a predetermined inclination angle.

[0088] Specifically, the material conveying system includes walking wheels 30. The conveying device 1 is arranged on the walking wheels 30, and the conveying device 1 can be transported to the required position through the walking wheels 30 to achieve short-distance transfer. The walking wheels 30 here can be driven by a motor.

[0089] Specifically, the walking wheels 30 include a first wheel 31 and a second wheel 32. Here, the first wheel 31 is rotatably connected to the middle position of the conveying device 1 through a support rod 19. The middle part of the support rod 19 is connected to the discharge side of the conveying device 1 through a second lifting mechanism 20. Here, the second lifting mechanism 20 is rotatably connected to the support rod 19; the second wheel 32 is directly connected to the feeding side of the conveying device 1. The structure of the second lifting mechanism 20 here is the same as that of the first lifting mechanism 6 in the above embodiment, and will not be described in detail here.

[0090] Here, by adjusting the relative distance between the first wheel 31 and the second wheel 32, the relative position between the support rod 19 and the conveying device 1 can be adjusted, so that the height of the side of the conveying device 1 close to the discharge side can be adjusted. For example, when the first wheel 31 and the second wheel 32 are relatively close, the position of the discharge side is higher; in addition, the second lifting mechanism 20 can further lift the side of the conveying device 1 close to the discharge side, and finally make the conveying device 1 set in an inclined posture based on a predetermined inclination angle.

[0091] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the conveyance of materials to the sand mixing tank of the sand mixing device and being able to obtain accurate material volume data of the conveyed materials.

[0092] The fourth embodiment of the present disclosure provides a material conveying system. On the basis of the above embodiments, whether it is in a skid-mounted manner or a vehicle-mounted manner, in order to achieve more accurate discharging, the conveying device 1 includes a main body section. An outlet section 1a is provided at the end of the main body section close to the discharging side. The outlet 4 can be provided on the outlet section 1a. A flexible connection is adopted between the outlet section 1a and the main body section of the conveying device 1. For example, a first flexible connecting member 18 made of materials such as rubber and cloth is used in cooperation with a first rotating connecting member 181. The first flexible connecting member 18 and the first rotating connecting member 181 are arranged between the outlet section 1a and the end of the main body section of the conveying device 1. In this way, when the height of the discharging side is adjusted by the first lifting mechanism 6 or the second lifting mechanism 20, the outlet section 1a can have a certain degree of compressibility and stretchability, ensuring that the outlet 4 can accurately align with the sand mixing tank.

[0093] Furthermore, on the discharging side of the conveying device 1, for example, a dust collector 10 can also be provided on the outlet section 1a. The dust collector 10 is used to eliminate the dust raised by the material at the outlet 4, avoiding environmental pollution.

[0094] In addition, for the above embodiments, the material conveying system further includes a battery 40. The battery 40 preferably has a charge and discharge function. The battery 40 is arranged on the skid frame 5 or at the bottom of the conveying device 1. The battery 40 is used to supply power to components such as the first lifting mechanism 6, the first rotating mechanism 7, the lifting mechanism 8, and the drive motor 15 in the conveying device 1, so as to meet the short-term material conveying operation requirements. Of course, if long-term operation is required, an external power supply is needed.

[0095] In addition, for the embodiments such as the vehicle-mounted manner described above, the battery 40 can also supply power to the drive motor of the walking wheel 30, so as to meet the short-distance mobile transfer requirements of vehicle-mounted conveying.

[0096] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the conveying of materials to the sand mixing tank of the sand mixing device and being able to obtain accurate material volume data of the conveyed materials.

[0097] The fifth embodiment of the present disclosure provides a material conveying system. On the basis of the above embodiments, whether it is in a ground-fixed manner, a skid-mounted manner or a vehicle-mounted manner, as Figure 9As shown, in order to achieve more accurate feeding, the conveying device 1 includes a main body section, and an inlet section 1b is provided at the end of the main body section close to the feeding side. The inlet section 1b is kept horizontal to facilitate feeding at the position of the inlet section 1b, and the other parts of the conveying device 1 are inclined. The setting of the inlet section 1a is particularly applicable when the feeding amount is relatively large or multiple transportation devices feed from the feeding side simultaneously.

[0098] Specifically, in this embodiment, as Figure 10 (a) shows, the conveying device 1 adopts first-stage conveying, and the conveyor belt 11 matches the shape of the conveying device 1. In addition, as Figure 10 (b) shows, the conveying device 1 can also adopt two-stage conveying. Among them, in order to adapt to the conveying device 1 with the inlet section 1a, the conveyor belt 11 includes a continuously arranged first conveyor belt 111 and a second conveyor belt 112. The first conveyor belt 111 matches the shape of the inlet section 1a, and the second conveyor belt 112 matches the shape of the main body section of the conveying device 1.

[0099] In this embodiment, as Figures 11 - 16 shown, the conveying device 1 includes an inlet section 1b, and the inlet section 1b is horizontally arranged and has a predetermined inclination angle with the main body section of the conveying device 1. The conveying device 1 in this embodiment can be applicable to the aforementioned ground fixing method, skid-mounted method, and vehicle-mounted method.

[0100] In order to adapt to the shape change between the inlet section 1b and the main body section of the conveying device 1, taking Figure 13 as an example, a second flexible connecting piece 9 and a second rotating connecting piece 91 are arranged between the inlet section 1b and the main body section of the conveying device 1. The inlet section 1b and the main body section of the conveying device 1 are connected in a flexible connection manner through the second flexible connecting piece 9. For example, the second flexible connecting piece 9 is made of materials such as rubber and cloth and is matched with the second rotating connecting piece 91, and the second flexible connecting piece 9 and the second rotating connecting piece 91 are arranged between the inlet part 1b and the main body section of the conveying device 1. For example Figure 11 and Figure 12 shown, when the material conveying system is arranged with, for example, a sand mixing semi-trailer 100 to achieve continuous operation, when adjusting the height of the discharging side of the conveying device 1, it can make the main body section and the inlet section 1b of the conveying device 1 have a certain degree of compressibility and stretchability, ensuring that the discharging port 4 can accurately align with the sand mixing tank.

[0101] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the feeding of materials to the sand mixing tank of the sand mixing device and being able to obtain accurate material volume data of the conveyed materials.

[0102] The sixth embodiment of the present disclosure provides a method for determining the volume of materials. Based on the material conveying system of the above first to fourth embodiments, weighing of materials can be achieved, and further, acquisition of the volume of materials can be realized. There can be various weighing methods adopted here. In one embodiment, based on the first measurement principle, for example, the volume of materials is measured by using a sensor weighing method. Specifically, based on the above first embodiment, as Figure 17 and Figure 18 shown, the instantaneous material weight on the conveyor belt 11 is measured by the weighing sensor 16 provided, for example, at the middle position of the conveyor belt 11, and at the same time, the instantaneous material weight is accumulated, that is, the total mass of the conveyed materials. In order to realize the acquisition of the volume of materials, the material conveying system further includes a display and control center 23, which is connected to the drive motor 15 and the weighing sensor 16.

[0103] Specifically, the weighing sensor 16 here mainly realizes measurement based on the change in the gap with the corresponding support roller 12 (for example, as the weighing roller 12a). Further, as Figure 19 shown, the weighing roller 12a is located below the material, the weighing sensor 16 is arranged below the weighing roller 12a, and the weighing roller 12a is connected to an elastic support member 12b, so that the weighing roller 12a can move up and down through the elastic support member 12b.

[0104] For example, when there is no material on the conveyor belt 11, the support roller 12 is farthest from the weighing sensor 16, and the electrical signal is the weakest at this time; when there is material on the conveyor belt 11, the conveyor belt 11 is pressed down by the weight of the material, and the support roller 12 will descend due to elastic support, that is, the distance between the support roller 12 and the weighing sensor 16 becomes shorter, resulting in an increase in the electrical signal. The weighing sensor 16 here measures and obtains the weight of the material through the strength of the electrical signal.

[0105] The weighing sensor 16 here can continuously weigh the materials on the conveyor belt 11 and provide measurement values such as instantaneous values and cumulative values; at the same time, a speed sensor can also be arranged on the conveying device 1, so as to obtain the conveying speed of the conveyor belt 11 by measuring the rotation speed of the weighing roller 12a or directly measure the conveying speed of the conveyor belt 11. This is mainly to control the sampling frequency of the weighing sensor 16 by monitoring the conveying speed, that is, the sampling frequency is high when the speed is fast, otherwise the frequency is low when the speed is slow.

[0106] As Figure 17As shown, considering that there is a certain angle (α) between the acting force of the weight on the conveying device 1 during operation and the vertical direction, the weight obtained by the weighing sensor 16 here needs to be multiplied by the corresponding coefficient f(α) to obtain the true weight of the material, and this coefficient f(α) is a function of the inclination angle (α). Finally, the volume of the conveyed material can be obtained by dividing the material weight by its density.

[0107] In the material conveying system, for example, the conveying speed of the conveyor belt 11 is controlled by the display and control center 23 to change the sand ratio (sand volume / base fluid volume) and sand concentration (sand ratio × sand density) of the mixed liquid. Specifically, when the volume of the base fluid is constant, the faster the conveying speed of the conveyor belt 11, the greater the sand delivery volume, and the higher the sand ratio and sand concentration of the mixed liquid. Conversely, the sand ratio and sand concentration of the mixed liquid are lower. Therefore, the regulation of the sand ratio and sand concentration of the mixed liquid can be achieved by controlling the speed of the conveyor belt 11. Or the feed opening of the feed hopper 2 is controlled by the display and control center 23 to change the sand ratio and sand concentration of the mixed liquid, that is, when the rotation speed of the conveyor belt 11 is constant, the feed opening of the feed hopper 2 is adjusted in real time to change the sand delivery volume, and then the sand ratio and sand concentration of the mixed liquid are controlled. The display and control center 23 can display the instantaneous weight, cumulative weight of the conveyed material and the parameter information obtained by other sensors in real time.

[0108] To achieve the above measurement, the conveying device 1 may further include a material remover 22, which is, for example, arranged on the discharge side of the conveying device 11, and its main function is to remove the material adhered to the return conveyor belt 11. The material remover 22 can, for example, adopt a scraper, a roller, a gas flushing device, a liquid flushing device, etc.

[0109] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the conveyance of materials to the sand mixing device and obtaining accurate material volume data for the conveyed materials.

[0110] The seventh embodiment of the present disclosure provides a method for determining the volume of a material. In this embodiment, based on the second measurement principle, for example, the volume of the material is measured and obtained through a three-dimensional solid reconstruction method, as Figure 20 and Figure 21 shown, the implementation of the method for determining the volume of a material based on the three-dimensional solid reconstruction method requires an imaging device 24 to be arranged at the middle position of the conveyor belt 11. The specific steps of the determination method in this embodiment include generating a three-dimensional solid of the material in real time, calculating the volume of the three-dimensional solid to obtain the volume of the material, and accumulating to obtain the total volume of the material.

[0111] As Figure 20 and Figure 21As shown, the imaging device 24 here is arranged above the conveyor belt 11 through the first fixing bracket 24a. It can be X-ray scanning, laser scanning, camera shooting, etc. For example, real-time scanning of materials using X-rays (lasers, etc.) to establish a real three-dimensional entity of the materials, and the volume of the materials can be obtained by calculating the volume of the three-dimensional entity. Among them, for camera shooting, a three-dimensional entity is generated from the two-dimensional graphics captured by the camera through computer vision algorithms, and the volume of the materials can also be obtained.

[0112] Here, it is also necessary to set a first speed sensor 25 to monitor the conveying speed of the conveyor belt 11, so as to control the scanning (or shooting) frequency. That is, when the speed is fast, the scanning (or shooting) frequency is high; otherwise, the scanning (or shooting) frequency is low. The position of the first speed sensor 25 here can be placed at positions such as the driven wheel 14, the driving wheel 13, the support roller 12, etc. Preferably, it is set on the support roller 12 below the imaging device 24, that is, by measuring the rotation speed of the support roller 12, the conveying speed of the conveyor belt 11 obtained is more accurate.

[0113] In this embodiment, it is also necessary to set a display and control center 23. Through it, the conveying speed of the conveyor belt 11 can be controlled to change the sand ratio (sand volume / base liquid volume) and sand concentration (sand ratio × sand density) of the mixed liquid. Specifically, when the volume of the base liquid is certain, the faster the conveying speed of the conveyor belt 11, the greater the sand delivery amount, and the higher the sand ratio and sand concentration of the mixed liquid. On the contrary, the sand ratio and sand concentration of the mixed liquid are lower. Therefore, by controlling the speed of the conveyor belt 11, the regulation of the sand ratio and sand concentration of the mixed liquid can be realized. Or the feeding opening degree of the feed hopper 2 is controlled by the display and control center 23 to change the sand ratio and sand concentration of the mixed liquid. That is, when the rotation speed of the conveyor belt 11 is constant, the feeding opening degree of the feed hopper 2 is adjusted in real time to change the sand delivery amount, and then the sand ratio and sand concentration of the mixed liquid are controlled. The display and control center 23 can display the instantaneous volume, cumulative volume of the conveyed materials and parameter information obtained by other sensors in real time.

[0114] The embodiments of the present disclosure are applicable to different usage scenarios, facilitating the conveying of materials to the sand mixing device and obtaining accurate material volume data of the conveyed materials.

[0115] The eighth embodiment of the present disclosure provides a method for determining the volume of materials. In this embodiment, based on the third measurement principle, the volume of materials is measured by means of AI model prediction. The AI model prediction method mainly predicts the volume of materials through a trained AI model.

[0116] Specifically, the method for determining the volume of the material based on the AI model prediction method herein includes: calibrating the rotational speed, voltage, current, etc. of the drive motor 15, the inclination angle of the conveying device 1, and the signal data obtained by the predetermined sensor 26 when the conveying device 1 is at different inclination angles and conveying materials of different volumes; then dividing these calibrated data into a training set, a validation set, and a test set according to a predetermined ratio, and then inputting the training set into the AI model for training. During the training process, the validation set is used to continuously verify the training effect of the AI model and timely adjust the training parameters to minimize the prediction error of the AI model. Finally, the test set is used to test the prediction effect of the AI model. Among them, if the prediction accuracy rate is above 95%, it meets the application requirements; if it does not meet the requirements, return to the training stage for retraining until the application requirements are met.

[0117] The above-mentioned predetermined sensor 26 includes at least one of a humidity sensor, a temperature sensor, a laser sensor, an imaging sensor, and a density sensor. Among them, the humidity sensor for detecting humidity can adopt measurement methods such as capacitance measurement, microwave measurement, and time-domain reflectometry measurement. Here, the time-domain reflectometry method is preferably used. It is a dielectric measurement method based on radar, and measures the dielectric constant and moisture content by measuring the transmission time of electromagnetic pulses. Compared with traditional capacitive or microwave measurement methods, time-domain reflectometry measurement can not only measure moisture, but also measure information such as the content of substances.

[0118] As Figure 22 shown, the humidity sensor herein includes a housing 261. A detection element 262 is provided on one end face of the housing 261, and an indicator light 263, a communication line opening 265, a correction button 264, etc. are provided on the other end face of the housing 2. Among them, the correction button 264 is used for debugging and correction of measurement; the indicator light 263 shows blue during normal operation and red during a fault; when the wear of the detection element 262 exceeds 80%, the indicator light 263 shows slow blue blinking to remind that the detection element 262 is about to be replaced; when the wear exceeds 90%, immediate replacement is required, and the indicator light 263 shows fast blue blinking.

[0119] In this embodiment, the above-mentioned predetermined sensor 26 includes a non-contact sensor and a contact sensor. As Figures 23 - 26 shown, when a contact sensor is adopted, a second fixing frame 27 is provided on the conveying device 1, an elastic member 271 is provided on the second fixing frame 27, and a contact sensor 272 is provided at the end of the elastic member 271. Here, through the elastic member 271, the contact sensor 272 such as a humidity sensor can be kept in contact with the material all the time. The elastic member 271 can adopt any one or several combinations of a spring, a cylinder, an oil cylinder, rubber, etc.; as Figure 20As shown, when a non-contact sensor is adopted, the non-contact sensor 273 can be directly arranged on the second fixing bracket 27 to keep a certain distance from the material.

[0120] In addition, a second speed sensor 28 can be arranged below the support roller 12. The second speed sensor 28 mainly monitors the conveying speed of the conveyor belt 11 to control the prediction frequency of the AI model, that is, the faster the speed, the higher the prediction frequency, otherwise the prediction frequency is lower. The second speed sensor 28 can be placed at positions such as the driven wheel, the driving wheel, and the support roller. Preferably, it is placed on the support roller 12 below the second fixing bracket 27, that is, measuring the rotation speed of the support roller 12 to obtain the conveying speed of the conveyor belt 11 is more accurate.

[0121] Of course, in this embodiment, a display and control center 23 can also be set up to control the conveying speed of the conveyor belt 11 to change the sand ratio (sand volume / base liquid volume) and sand concentration (sand ratio × sand density) of the mixed liquid. Specifically, when the volume of the base liquid is certain, the faster the conveying speed of the conveyor belt 11, the greater the sand delivery amount, and the higher the sand ratio and sand concentration of the mixed liquid. On the contrary, the sand ratio and sand concentration of the mixed liquid are lower. Therefore, by controlling the speed of the conveyor belt 11, the regulation of the sand ratio and sand concentration of the mixed liquid can be realized. Or by controlling the feeding opening degree of the feeding hopper 2 through the display and control center 23 to change the sand ratio and sand concentration of the mixed liquid, that is, when the rotation speed of the conveyor belt 11 is constant, the feeding opening degree of the feeding hopper 2 is adjusted in real time to change the sand delivery amount, and then the sand ratio and sand concentration of the mixed liquid are controlled. The display and control center 23 can display the instantaneous volume, cumulative volume of the conveyed material and the parameter information obtained by other sensors in real time.

[0122] Through the above method, the material volume can be obtained and other parameters can be further obtained. For example, when the volume of the base liquid and the sand density are known, after obtaining the sand volume, parameters such as the sand ratio and sand concentration of the mixed liquid can also be calculated.

[0123] The embodiments of the present disclosure are applicable to different usage scenarios, which are convenient for conveying materials to the sand mixing device and obtaining accurate material volume data of the conveyed materials.

[0124] In the above embodiments of the present disclosure, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0125] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways, rotated 90 degrees or in other orientations, and corresponding interpretations are made for the spatial relative descriptions used here.

[0126] In addition to the above, it should also be noted that the "one embodiment", "another embodiment", "embodiment" etc. mentioned in this specification refer to the specific features, structures or characteristics described in connection with that embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of this disclosure.

[0127] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0128] The above are only the preferred embodiments of the present disclosure and are not used to limit the present disclosure. For those skilled in the art, various changes and modifications can be made to the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A material conveying system, characterized in that, The material conveying system at least includes a conveying device, at least a part of the conveying device is inclined, a feed hopper is arranged on the feed side which is relatively lower of the conveying device, a feed control device for adjusting the feed flow rate is arranged on the feed hopper, a discharge port is arranged on the discharge side which is relatively higher of the conveying device, and the material is conveyed through the conveying device and the volume of the material is obtained.

2. The material conveying system according to claim 1, characterized in that The conveying device at least includes a conveyor belt, support rollers, a driving wheel, a driven wheel and a driving motor, the driving wheel is arranged on the discharge side and connected with the driving motor, the driven wheel is arranged on the feed side, and the conveyor belt is arranged between the driving wheel and the driven wheel and is supported by a plurality of the support rollers.

3. The material conveying system according to claim 2, wherein The material conveying system further includes a skid frame, the conveying device is arranged on the skid frame, a first fixing mechanism and a second fixing mechanism are arranged on the skid frame, the first fixing mechanism is connected with the discharge side to adjust the height of the discharge side, and the second fixing mechanism is connected with the feed hopper.

4. The material conveying system according to claim 2, wherein, The material conveying system further includes a skid frame, the conveying device is arranged on the skid frame, a first lifting mechanism and an adjusting assembly are arranged on the skid frame, the first lifting mechanism is connected with the discharge side to adjust the height of the discharge side, and the adjusting assembly is connected with the feed hopper to adjust the height and attitude of the feed hopper.

5. The material conveying system according to claim 4, characterized in that, The first lifting mechanism at least includes a telescopic oil cylinder and a telescopic rod, one end of the telescopic rod is rotatably connected with the skid frame, and the other end thereof is connected with the discharge side of the conveying device.

6. The material conveying system according to claim 4, characterized in that The adjusting assembly includes a first rotating mechanism and a lifting mechanism which are connected in sequence, the first rotating mechanism is arranged on the skid frame, one end of the lifting mechanism is rotatably connected with the first rotating structure, and the other end thereof is rotatably connected with the feed hopper.

7. The material conveying system according to claim 2, wherein The material conveying system includes traveling wheels, the conveying device is arranged on the traveling wheels, the traveling wheels include a first wheel and a second wheel, the first wheel is rotatably connected with the middle part of the conveying device through a support rod, the middle part of the support rod is connected with the discharge side of the conveying device through a second lifting mechanism, and the second lifting mechanism is rotatably connected with the support rod; the second wheel is connected with the feed side.

8. The material conveying system according to claim 1, characterized in that, A discharge section is arranged on the discharge side, the discharge port is arranged on the discharge section, and a flexible connection is adopted between the discharge section and the main body section of the conveying device.

9. The material conveying system according to claim 8, wherein A dust collector is further arranged on the discharge section.

10. The material conveying system according to claim 3 or 4 or 7, characterized in that, The conveying device includes a feed section, the feed section is horizontally arranged and forms a predetermined inclination angle with the main body section of the conveying device, and a flexible connection is adopted between the feed section and the main body section of the conveying device.

11. The material conveying system according to claim 10, wherein The conveyor belt includes a first conveyor belt and a second conveyor belt which are arranged oppositely, the first conveyor belt is matched with the feed section, and the second conveyor belt is matched with the main body section of the conveying device.

12. The material conveying system according to claim 1, wherein A weighing sensor is arranged below the conveyor belt, and the weighing sensor cooperates with its corresponding weighing roller to realize weighing.

13. The material conveying system according to claim 12, wherein The weighing sensor is arranged below the weighing roller, the weighing roller is connected with an elastic support member, and the weighing roller can move through the elastic support member.

14. The material conveying system according to claim 1, wherein An imaging device is arranged at the middle position of the conveyor belt through a first fixing frame, and the imaging device obtains the volume of the material by imaging through scanning or photographing.

15. The material conveying system according to claim 1, wherein A predetermined sensor is arranged at the middle position of the conveyor belt through a second fixing frame, and the volume of the material is obtained through an AI model based on the data collected by the predetermined sensor.

16. The material conveying system according to claim 15, characterized in that, The predetermined sensor is a contact sensor or a non-contact sensor.

17. A method for determining the volume of a material, characterized in that, Applicable to the material conveying system according to any one of claims 1-16, the determination method obtains the volume of the material through at least one of a sensor weighing method, a three-dimensional solid reconstruction method, and an AI model prediction method.

18. The method for determining the volume of the material according to claim 17, wherein Further comprising: Changing the sand ratio and sand concentration of the mixed liquid by controlling the conveying speed of the conveying device and / or changing the sand ratio and sand concentration of the mixed liquid by controlling the feeding opening of the feeding hopper.

Images