Water and sand supply device and water and sand supply control method

Abstract

The embodiment of the invention provides a water and sand supply device and a water and sand supply control method. The water and sand supply device comprises a first supply assembly, the first supply assembly comprises a hopper part, a conveying part and a weighing control part, one end of the conveying part is connected to a discharging port of the hopper part, the other end of the conveying part is arranged in a mixing cavity, and the weighing control part is connected with the hopper part and the conveying part. The control part is used for determining the weight change condition of the materials in the hopper part and controlling the speed of the conveying part according to the weight change speed corresponding to the weight change condition, and the problem that the sediment supply efficiency is low is solved.

Description

Technical Field

[0001] The present application relates to the field of sedimentation physics simulation, and in particular to a water-sand supply device and a water-sand supply control method. Background Art

[0002] In geological research, it is necessary to study sedimentary basins so as to explore the resources in the sedimentary area. By using sedimentary physics simulation experiments to simulate the formation of sediments, the sedimentary area can be simulated and studied.

[0003] In sedimentation physics simulation experiments, a feeder is usually used to achieve quantitative supply of materials, or an empty hourglass-like bottle is used to control the discharge amount by changing the diameter of the bottle mouth, and then a matching water supply device is used to supply water and mix with the material to form sediment.

[0004] However, in the prior art, when the volume or type of material changes, frequent replacement of the supply bottle will affect the material supply efficiency, and the water supply is also affected due to untimely water supply, resulting in low sediment supply efficiency. Summary of the invention

[0005] The embodiments of the present application provide a water-sand supply device and a water-sand supply control method, which are used to improve the sediment supply efficiency.

[0006] In a first aspect, an embodiment of the present application provides a water-sand supply device, comprising a first supply component, the first supply component comprising a hopper component, a transmission component and a weighing control component, wherein one end of the transmission component is connected to the discharge port of the hopper component, and the other end of the transmission component is arranged in a mixing chamber, and the weighing control component is respectively connected to the hopper component and the transmission component, and is used to determine the weight change of the material in the hopper component, and control the speed of the transmission component according to the weight change rate corresponding to the weight change.

[0007] In a possible implementation, the water-sand supply device further includes a second supply assembly, the second supply assembly includes a water supply box and a water delivery member, the water intake end of the water delivery member is arranged in the water supply box, and the water outlet end of the water delivery member is arranged in the mixing chamber;

[0008] The weighing control component is also connected to the water delivery component and is used to control the water delivery rate of the water delivery component according to the weight change rate corresponding to the weight change.

[0009] In a possible implementation, the second supply assembly further includes a water pump, one end of which is disposed in the water supply tank, and the other end of which is disposed in the water supply tank, and the water supply tank is in an overflow state through the water pump;

[0010] Wherein, the second supply assembly and / or the first supply assembly are both arranged above the notch of the water supply tank.

[0011] In a possible implementation, the hopper member includes a first hopper and a second hopper, and the discharge port of the first hopper is relatively arranged above the feed port of the second hopper;

[0012] One end of the transmission member is fixedly connected to the discharge port of the second hopper, and the weighing control member is arranged below the second hopper and is connected to the support of the second hopper.

[0013] In a possible implementation, the first supply assembly further includes a hopper support vertically arranged in the height direction, and the first hopper is movably arranged above the second hopper along the hopper support.

[0014] In a possible implementation manner, a vibrating member is fixedly connected to the outer wall of the second hopper.

[0015] In a second aspect, an embodiment of the present application provides a water and sand supply control method, which is applied to a water and sand supply device, comprising:

[0016] Determine the weight change rate of the material according to the weight change of the material in the hopper member weighed by the weighing control member in the water-sand supply device within the first time period;

[0017] According to the weight change rate of the material, determine the transmission rate of the transmission member corresponding to the weight change rate, wherein when the weight change rate is within a first range, the transmission rate of the transmission member is a first transmission rate, when the weight change rate is within a second range, the transmission rate of the transmission member is a second transmission rate, when the weight change rate is within a third range, the transmission rate of the transmission member is a third transmission rate, the first transmission rate is less than the second transmission rate, and the second transmission rate is less than the third transmission rate;

[0018] The transmission element is controlled according to the transmission rate of the transmission element.

[0019] In a possible implementation, the flow rate change rate of the water flow is determined according to the flow change of the water flow in the water outlet end measured by the water conveying member in the water and sand supply device within the first time period;

[0020] According to the flow rate change rate of the water flow and the weight change rate corresponding to the weight change, determine the speed of the water conveying member corresponding to the flow rate change rate;

[0021] The water delivery member is controlled according to the speed of the water delivery member.

[0022] In a possible implementation manner, when the weight change rate is within the second range, the second transmission rate satisfies:

[0023] y = B x + A;

[0024] Wherein, y represents the weight change rate of the material, x represents the rate of the transmission element, A represents the first correlation coefficient, and B represents the second correlation coefficient.

[0025] In a possible implementation, when the weight change rate is within the third range, the height difference between the discharge port of the first hopper and the feed port of the second hopper in the hopper member is controlled, wherein the height difference satisfies:

[0026]

[0027] Where H represents the height difference between the discharge port of the first hopper and the inlet port of the second hopper in the hopper member, y represents the currently detected weight change rate, and y max represents the maximum allowable weight change rate, T represents the time required from detecting the weight change to actually adjusting the height difference, α represents the third correlation coefficient, and β represents the fourth correlation coefficient.

[0028] The embodiment of the present application provides a water-sand supply device and a water-sand supply control method, wherein a first supply component is provided, and materials are provided through the cooperation of a hopper component, a weighing control component and a transmission component included in the first supply component, wherein one end of the transmission component is connected to the discharge port of the hopper component, and the other end is arranged in the mixing cavity, so as to transmit the materials from the hopper component to the mixing cavity. The weighing control component is supported and connected to the transmission component, and is used to determine the weight change of the material in the hopper component, and according to the weight change rate corresponding to the weight change, the speed of the transmission component is controlled to achieve the effect of improving the sediment supply efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] Figure 1 A schematic diagram of the structure of a water-sand supply device provided in an embodiment of the present application;

[0031] Figure 2 A schematic diagram of the structure of a first supply assembly of a water-sand supply device provided in an embodiment of the present application;

[0032] Figure 3 A schematic diagram of the structure of a second supply assembly of a water-sand supply device provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of the mixed structure of the water-sand supply device provided in an embodiment of the present application;

[0034] Figure 5 A schematic flow chart of a water and sand supply control method provided in an embodiment of the present application.

[0035] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

[0036] Reference numerals:

[0037] 100-first supply assembly; 110-hopper member; 111-first hopper; 112-second hopper; 113-vibrating member; 120-transmission member; 121-screw; 130-weighing control member; 140-first support plate; 150-hopper bracket;

[0038] 200-second supply assembly; 210-water supply box; 211-first water tank; 212-second water tank; 213-partition; 220-water delivery member; 221-second water pipe; 222-water supply pump; 223-first water pipe; 230-water pump; 240-second support plate;

[0039] 300-water supply trough; 310-slide rail;

[0040] 400-Mixed pieces. DETAILED DESCRIPTION

[0041] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0042] In the prior art, in sediment physics simulation experiments, the supply of sediments is usually achieved by a feeder and a supporting water source. However, the feeders on the market are relatively large in size, and it is difficult to meet the high-precision experimental requirements when providing material supply. At the same time, the feed bottle that provides materials to the feeder is also limited by the caliber of the feed bottle mouth, making it difficult for the type and size of the material to change with the experimental requirements, thereby affecting the material supply efficiency. In addition, for water supply, as the water in the water supply tank decreases, the water supply speed is affected. Relying solely on manpower to continuously add water is not only inconvenient, but also easily makes the water supply unstable. Therefore, both the material supply and the water supply are unstable, resulting in the problem of low sediment supply efficiency during the experiment.

[0043] In order to solve the problem of low sediment supply efficiency, the embodiment of the present application provides a water-sand supply device and a water-sand supply control method, which is provided with a first supply component to provide materials and a second supply component to provide water. In order to adjust the discharge speed according to the discharge situation in real time, the weighing control component of the first supply component is used to feed back the weight change of the material in real time, and the corresponding weight change rate is obtained, so as to control the speed of the transmission component, and the experimental situation of the supplied material is fed back to the transmission rate, and the two are mutually checked for supply. At the same time, the water supply box of the second supply component is set to cooperate with the water supply trough to supply water. The overflowing water supply box makes the water supply stable and can also form a water cycle with the water supply trough. The flow of the flood tank is monitored by a flow meter, and the speed of the water pump is adjusted in real time according to the water flow rate and the weight change rate corresponding to the weight change situation, so that the feeding rate and the water supply rate are guaranteed, so that the sediment is formed stably, and the problem of low sediment supply efficiency is solved.

[0044] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0045] Figure 1 A schematic diagram of the structure of the water-sand supply device provided in the embodiment of the present application is shown in FIG. Figure 1 As shown, the water-sand supply device includes a first supply component 100, and the first supply component 100 includes a hopper member 110, a transmission member 120 and a weighing control member 130, wherein one end of the transmission member 120 is connected to the discharge port of the hopper member 110, and the other end of the transmission member 120 is arranged in the mixing chamber, and the weighing control member 130 is respectively connected to the hopper member 110 and the transmission member 120, and is used to determine the weight change of the material in the hopper member 110, and control the speed of the transmission member 120 according to the weight change rate corresponding to the weight change.

[0046] Among them, the first supply component 100 can refer to the component structure of the supply material. The first supply component 100 can select high-strength steel or aluminum alloy as the frame material to adapt to frequent experiments, while ensuring that the experimental results are not affected by the shaking of the frame when adding materials.

[0047] The hopper member 110 may refer to a hopper for providing materials, which is used for temporarily storing and providing materials. The main body of the hopper member 110 may be made of thick-walled stainless steel or carbon steel to ensure good mechanical properties and corrosion resistance, and can withstand heavier loads and prevent rust.

[0048] In an embodiment of the present application, the hopper member 110 includes a first hopper and a second hopper, the discharge port of the first hopper is relatively arranged above the feed port of the second hopper, one end of the transmission member 120 is fixedly connected to the discharge port of the second hopper, and the weighing control member 130 is arranged below the second hopper and is connected to the support of the second hopper.

[0049] The first hopper is used for preliminary storage of materials. It is usually conical or funnel-shaped to facilitate the smooth flow of materials to the discharge port at the bottom. The main function of the first hopper is to provide a stable supply of materials for subsequent processing. The first hopper can be made of transparent material to facilitate the experimenter to replenish materials in the first hopper in time to ensure the smooth progress of the experiment.

[0050] The second hopper is located below the first hopper and is used to receive materials from the first hopper to further pre-process the materials and act as a buffer to adjust the material flow. The inlet of the second hopper corresponds exactly to the outlet of the first hopper, ensuring that the materials can flow directly into it.

[0051] The transmission member 120 may refer to a component that transports the material from the discharge port of the second hopper to the destination device, the destination device may refer to a device for mixing the material and water, and the transmission member 120 may be any form of conveying device, such as a screw conveyor, a belt conveyor, or a pneumatic conveying system, etc. One end of the transmission member 120 is connected to the discharge port of the second hopper, and the other end extends to the destination device.

[0052] The weighing control 130 may refer to a component for weighing materials, and is used to timely determine the weight change of the materials. In the embodiment of the present application, the weighing control 130 tracks the mass change of the materials in real time, and feeds the data back to the control system to adjust the material supply rate to ensure accurate measurement. The weighing control 130 is usually composed of a high-precision sensor, such as a strain gauge load cell, to accurately measure the force or weight applied thereto.

[0053] The mixing chamber may refer to the chamber of the target device, which is used to provide a mixing space for materials and water. Because a large torque may be generated during the mixing process, as well as compatibility requirements for different substances, the outer wall of the mixing chamber is usually constructed of thick-walled stainless steel or composite materials.

[0054] In the embodiment of the present application, the water-sand supply device also includes a second supply component 200, which includes a water supply box 210 and a water delivery component 220. The water intake end of the water delivery component 220 is arranged in the water supply box 210, and the water outlet end of the water delivery component 220 is arranged in the mixing chamber. The weighing control component 130 is also connected to the water delivery component 220, and is used to control the water delivery rate of the water delivery component 220 according to the weight change rate corresponding to the weight change.

[0055] The second supply assembly 200 may refer to a component structure for supplying a water source, and is used to provide water to the mixing chamber. The second supply assembly 200 works in conjunction with the first supply assembly 100 to ensure that water and sand are mixed in a correct proportion.

[0056] The water supply tank 210 may refer to a component that provides water source, which is used to temporarily store water and provide water. The water source of the water supply tank 210 comes from the water supply tank 300. The water supply tank 300 may refer to an external water tank, which is used to provide water source to the water supply tank 210 and collect excess water in the experiment. The water supply tank and the water supply tank 300 are connected to form a closed-loop supply passage, which can not only ensure the supply efficiency of the water supply tank 210, but also ensure the recycling of water resources.

[0057] In some embodiments, the water supply tank 210 is a water tank in an overflow state. Maintaining the water level in the water supply tank 210 at a constant level can ensure that the water supply always works under optimal conditions, with stable water pressure and flow, thereby accurately controlling the water delivery efficiency. The water overflowing from the water supply tank 210 will flow into the water supply tank 300, and the water supply tank 300 will supply water to the water supply tank 210, so that the water volume in the water supply tank 210 does not change, and the two achieve water circulation.

[0058] The water delivery member 220 may refer to a pipe or a delivery device connecting the water supply tank 210 and the mixing chamber, and is used to transport water from the water supply tank 210 to the mixing chamber. The water delivery member 220 may be a hose, a hard pipe, or other forms of fluid delivery systems. The water intake end of the water delivery member 220 is immersed in the water supply tank 210, and the water outlet end extends into the mixing chamber, ensuring that water can be accurately injected into the mixing chamber.

[0059] In an embodiment of the present application, the second supply assembly 200 and / or the first supply assembly 100 are both arranged above the notch of the water supply trough 300, and the first supply assembly 100 and the second supply assembly 200 are both connected to the water supply trough 300 through a slide rail 310, thereby realizing the arbitrary position change of the feeding device and the water supply device on the water supply trough 300.

[0060] Figure 2 A schematic diagram of the structure of the first supply component of the water-sand supply device provided in an embodiment of the present application, as shown in FIG. Figure 2 As shown, the first supply assembly 100 further includes a first support plate 140 and a hopper bracket 150 vertically arranged in the height direction, and the first hopper is movably arranged above the second hopper along the hopper bracket 150. The weighing control member 130, the transmission member 120 and the hopper member 110 are fixedly connected to the first support plate 140 in sequence.

[0061] Among them, the first support plate 140 can refer to a device that supports the weighing control component 130, the transmission component 120 and the hopper component 110. The first support plate 140 is connected to the water supply trough in the form of a slide rail to achieve movement on the water supply trough and provide material supply at multiple positions.

[0062] The hopper bracket 150 may refer to a rod body that supports the hopper member 110 on the first support plate 140. The first hopper 111 is clamped on the hopper bracket 150 by a clip and an iron ring, and the position can be changed by moving the clip up and down. The first hopper can move up and down, and the distance between the first hopper and the second hopper can ensure that the material does not overflow, and the distance can ensure that the material is put into the hopper faster.

[0063] In the embodiment of the present application, the other end of the transmission member 120, namely the discharge end, has a screw 121 for transferring the material. The motor of the screw 121 can be controlled by a control system to control the transfer rate of the material.

[0064] In some embodiments, a vibrating member 113 is fixedly connected to the outer wall of the second hopper 112. The vibrating member 113 may refer to a component that promotes the flow of materials by generating vibration, thereby solving problems such as blockage, bridging or poor flow of materials that may occur during the transportation process. The vibrating member 113 may be a vibration motor, a pneumatic vibrator or an electromagnetic vibrator, etc., which is not limited in the present invention.

[0065] Figure 3 A schematic diagram of the structure of the second supply component of the water-sand supply device provided in an embodiment of the present application, as shown in FIG. Figure 3 As shown, the second supply assembly also includes a water pump 230 and a second support plate 240. One end of the water pump 230 is arranged in the water supply tank, and the other end of the water pump 230 is arranged in the water supply tank 210. The water supply tank 210 is in an overflow state through the water pump 230.

[0066] The water delivery member 220 in the second supply assembly includes a water supply pump 222, a first water pipe 223 and a second water pipe 221. The first water pipe 223 is used as the water intake end of the water delivery member 220 and is disposed in the water supply tank 210, while the second water pipe 221 is used as the water outlet end and is disposed in the mixing chamber. The water supply pump 222 extracts water from the water supply tank 210 and delivers it to the mixing chamber. In the embodiment of the present application, in order to make full use of the space on the first support plate 140 and balance the force on the first support plate 140, the water supply pump 222 is placed on the first support plate 140 to cooperate with the water supply tank 210 to supply water.

[0067] In some embodiments, the working speed of the water pump 230 is greater than the working speed of the water supply pump 222, thereby ensuring a stable water supply and preventing the generation of sediments from being affected by the lack of water in the water supply tank 210.

[0068] The second support plate 240 may refer to a device for supporting the water supply tank 210. The second support plate 240 is connected to the water supply tank in the form of a slide rail to achieve movement on the water supply tank and provide water supply at various positions.

[0069] In some embodiments, the water supply tank 210 may be provided with a first water tank 211 and a second water tank 212 .

[0070] Among them, the first water tank 211 can refer to a water tank in an overflow state, and the second water tank 212 can refer to a transition water tank for receiving overflow water. The first water tank 211 and the second water tank 212 are separated by a partition 213, and the height of the partition 213 is lower than the depth of the water supply tank 210, so that the water in the water supply tank is directly supplied to the first water tank 211. The first water tank 211 supplies water to the mixing cavity connected to the water delivery member 220 in the overflow state, and the water overflowing from the first water tank 211 flows into the second water tank 212.

[0071] An outlet hole is provided in the second water tank 212. After the overflow water is collected by the second water tank 212, it flows into the water supply tank through the outlet hole and the overflow pipe connected to the outlet hole, thereby realizing the circulation of water resources. At the same time, the size of the first water tank 211 can be larger than that of the second water tank 212 to ensure that the water supply volume is large enough.

[0072] Figure 4 A schematic diagram of the mixed structure of the water-sand supply device provided in the embodiment of the present application, such as Figure 4 As shown, the material from the transmission element 120 and the water from the water supply pump 222 are collected in the mixing chamber of the mixer 400, and the outlet of the mixer 400 can deliver the mixed material to form a sediment in the collection device. The mixer 400 is clamped on the hopper bracket 150 by an iron ring and a clamp, and the position of the mixer 400 can be moved up and down when necessary to ensure the formation of the sediment.

[0073] Figure 5 A flow chart of the water and sand supply control method provided in the embodiment of the present application is shown as follows: Figure 5 As shown, the method includes:

[0074] S501. Determine a weight change rate of the material according to a weight change of the material in the hopper member weighed by a weighing control member in the water-sand supply device within a first time period.

[0075] The first time period may refer to a specific time interval during which the weighing control component continuously monitors the weight change of the material in the hopper component. The first time period may be a pre-set fixed time length, such as 30 seconds, 1 minute, etc., or may be dynamically adjusted, depending on the design and requirements of the control system.

[0076] The weight change of the material can refer to the weight change trend of the material recorded by the weighing control unit over time in the first time period, including the specific value of the material increase or decrease and the speed of change. The weighing control unit monitors the weight of the material in the hopper in real time through a high-precision sensor and transmits this data to the control system. Because the weighing control unit weighs the combined weight of the hopper, material and transmission component, when calculating the material change, the weighed weight needs to be subtracted from the fixed hopper weight and transmission component weight to obtain the weight of the material.

[0077] The weight change rate of a material can refer to the difference between the maximum and minimum weight of the material in the first time period, which is used to reflect the fluctuation of the material flow rate, so as to evaluate the stability and consistency of the material supply process. If the weight change rate is large, it may mean that the material flow rate is unstable; conversely, a small weight change rate indicates that the material supply is relatively uniform.

[0078] S502, according to the weight change rate of the material, determining the transmission rate of the transmission member corresponding to the weight change rate, wherein when the weight change rate is within a first range, the transmission rate of the transmission member is a first transmission rate, when the weight change rate is within a second range, the transmission rate of the transmission member is a second transmission rate, when the weight change rate is within a third range, the transmission rate of the transmission member is a third transmission rate, the first transmission rate is less than the second transmission rate, and the second transmission rate is less than the third transmission rate;

[0079] S503: Control the transmission component according to the speed of the transmission component.

[0080] The speed of the conveyor may refer to the amount or distance of material transported by the conveyor per unit time. For example, for a screw conveyor, this may be the number of revolutions per minute; for a belt conveyor, this may be the speed at which the belt moves.

[0081] The first range may refer to when the weight change rate of the material is at a lower level, indicating that the material supply is relatively slow or stable. At this time, the corresponding transmission rate of the transmission member is the first transmission rate, which is a lower rate suitable for maintaining fine control and low flow transmission of the material.

[0082] The second range may refer to when the weight change rate of the material increases to a medium level, indicating that the material needs to be transported faster. At this time, the transmission rate of the transmission element is a second transmission rate, which is faster than the first transmission rate and can handle more material flow. At this time, a linear relationship is satisfied between the transmission element rate and the weight change rate of the material.

[0083] The third range may mean that the weight change rate of the material further increases and reaches a higher level, and the material needs to be transmitted more quickly. At this time, the transmission rate of the transmission member is the third transmission rate, which is the fastest rate, ensuring the material transmission efficiency under high flow.

[0084] In an embodiment of the present application, the material weight can be fed back to the control system based on the material weight monitored in real time by the weighing control component. The control system can calculate the weight change of the material and the weight change rate of the material, thereby determining the speed of the transmission component, controlling the speed of the screw motor in the transmission component, and achieving stable control of the feeding speed.

[0085] For example, the first range is set to 0.01-0.1kg / min, the second range is 0.1-0.5kg / min, and the third range is above 0.5kg / min. In actual applications, adjustments should be made based on detailed experimental data and field tests. In addition, for different material types (such as sand with different particle sizes and humidity), these ranges may also need to be optimized accordingly. For example, finer or wetter sand may result in different flow behavior, so the range values ​​need to be adjusted to suit the actual situation.

[0086] In some embodiments, when the weight change rate is within the first range, when the monitored material weight change rate meets the ideal experimental value, it means that the weight change of the material is very small or almost unchanged, and the control system will extend the monitoring time instead of adjusting the transmission rate immediately. Because if the weight of the material changes very little in a short period of time, frequent adjustments to the transmission rate may cause unstable supply. By extending the monitoring time, longer data can be obtained to confirm whether the material supply is truly stable. At the same time, extending the monitoring time can collect more data points, which helps to more accurately evaluate the actual situation of material supply and ensure that decisions are based on more comprehensive information.

[0087] For example, the monitoring interval is set to once every 5 minutes. During a certain operation cycle, the weighing control unit records the following weight changes:

[0088] Time point 0min: material weight is 100kg;

[0089] Time point 5min: Material weight is 100.2kg;

[0090] Time point 10min: Material weight is 100.4kg;

[0091] Time point 15min: Material weight is 100.6kg.

[0092] From these data, it can be calculated that the average weight change rate of the material is (100.6-100) / 15=0.04kg / min, which falls within the first range, indicating that the material supply is stable. At this time, the monitoring time can be extended without rushing to change the transmission rate.

[0093] In some embodiments, when the weight change rate is within the second range, the second transmission rate satisfies:

[0094] y = B x + A;

[0095] Wherein, y represents the weight change rate of the material, x represents the rate of the transmission element, A represents the first correlation coefficient, and B represents the second correlation coefficient.

[0096] For example, after experimental determination, it can be concluded that A is 0.0093 and B is 0.0188, then the linear relationship between the speed of the transmission element and the weight change rate of the material satisfies:

[0097] y=0.0188x+0.0093;

[0098] When the weight change rate Y of the material measured experimentally is 1.3, it is substituted into the above formula to obtain the transmission rate x of 68.5, thereby controlling the speed of the screw motor in the transmission.

[0099] In some embodiments, when the weight change rate is within the third range, the height difference between the discharge port of the first hopper and the inlet port of the second hopper in the hopper member is controlled, wherein the height difference satisfies:

[0100]

[0101] Where H represents the height difference between the discharge port of the first hopper and the inlet port of the second hopper in the hopper member, y represents the currently detected weight change rate, and y max represents the maximum allowable weight change rate, T represents the time required from detecting the weight change to actually adjusting the height difference, α represents the third correlation coefficient, and β represents the fourth correlation coefficient.

[0102] For example, after experimental determination, it can be concluded that α is 5, β is 3, T is 2min, and y is max If it is 1.0kg / min, then using the currently detected weight change rate y of 0.7kg / min, which is in the third range, substituting it into the formula, we can get H as 13.143cm, so as to adjust the first hopper and the second hopper.

[0103] In the embodiment of the present application, the water supply rate is adjusted in a similar manner to the material supply rate, including:

[0104] Determine the flow rate change rate of the water flow according to the flow rate change of the water flow in the water outlet end measured by the water conveying member in the water and sand supply device within the first time period;

[0105] According to the flow rate change rate of the water flow and the weight change rate corresponding to the weight change, determine the speed of the water conveying member corresponding to the flow rate change rate;

[0106] The water delivery member is controlled according to the speed of the water delivery member.

[0107] The flow rate change may refer to measuring and recording the change trend of the flow rate of the water flow at the water outlet over time during the first time period, including the specific value of the increase or decrease in the flow rate and the speed of change. For example, an electromagnetic flowmeter, a turbine flowmeter or other types of flow sensors are used to accurately measure the instantaneous flow rate of the water flow and transmit the data to the control system.

[0108] The flow rate of change may refer to the speed at which the water flow changes within the first time period, that is, the change in flow per unit time, which is used to reflect the stability and fluctuation of water supply. For example, the flow rate of change may be calculated by differential calculation of flow values ​​at multiple consecutive time points, or directly provided by an intelligent flow meter. If the flow rate of change is large, it may mean that the water flow is unstable; otherwise, it indicates that the water flow is relatively uniform.

[0109] The speed of a water delivery component can refer to the ability of the water delivery component to extract and deliver water per unit time. For example, for a centrifugal pump, the speed of the water delivery component is the rotational speed per minute; for a positive displacement pump, the speed of the water delivery component is the displacement per minute. Based on the determined flow rate change rate, the control system will calculate an appropriate water delivery component speed to maintain the stability of the water supply. If the flow rate change rate is large, the system may reduce the water delivery component speed to slow down the flow of water, otherwise it may increase the speed.

[0110] In some embodiments, the control system provides a real-time display function of the speed of the transmission component and the speed of the water delivery component, through which the user can view the system working status in real time. The real-time data of the system operation is saved in any specified folder. Folders are created in units of days, and the data of each day is stored in the folder. Different files are created for the data of each day according to the time when the system starts running each time, and the data of each operation is saved. If the experiment runs across days, the file is saved in the folder where it is located at the beginning.

[0111] The water and sand supply control method provided in the embodiment of the present application monitors the weight change of the material in the hopper in real time through the weighing part and the weighing control part to determine the weight change rate of the material. According to this rate, the system adjusts the transmission rate of the transmission part (such as a screw conveyor or a belt conveyor) to ensure the stability and efficiency of the material supply. The weight change rate is divided into three ranges: the first range corresponds to a lower rate, which is suitable for fine control; the second range corresponds to a medium rate, at which time there is a linear relationship between the transmission rate and the weight change rate; the third range corresponds to the highest rate, which is suitable for high-flow material transmission, and within this range, the height difference between the hoppers needs to be adjusted to optimize the material flow. In addition, a similar mechanism is also used for the control of water flow, that is, the flow change rate of the water flow is measured and adjusted by the water conveying part to maintain the stability of the water flow. The design of the entire system is to achieve efficient and stable water and sand supply by accurately controlling the speed of the material and water flow. At the same time, the system provides real-time monitoring and data recording functions, which is convenient for users to view and analyze the operating status, ensuring the transparency and traceability of the operation.

[0112] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0113] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. The schematic representations of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0114] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0115] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0116] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A water-sand supply device, characterized in that: The invention comprises a first supply component (100), wherein the first supply component (100) comprises a hopper component (110), a transmission component (120) and a weighing control component (130), wherein one end of the transmission component (120) is connected to a material outlet of the hopper component (110), and the other end of the transmission component (120) is arranged in a mixing chamber; the weighing control component (130) is respectively connected to the hopper component (110) and the transmission component (120), and is used to determine a weight change of a material in the hopper component (110), and to control a speed of the transmission component (120) according to a weight change speed corresponding to the weight change.

2. The water-sand supply device according to claim 1, characterized in that: The device further comprises a second supply assembly (200), the second supply assembly (200) comprising a water supply box (210) and a water delivery member (220), the water intake end of the water delivery member (220) being arranged in the water supply box (210), and the water outlet end of the water delivery member (220) being arranged in the mixing chamber; Wherein, the weighing control component (130) is also connected to the water delivery component (220) and is used to control the water delivery rate of the water delivery component (220) according to the weight change rate corresponding to the weight change condition.

3. The water-sand supply device according to claim 2, characterized in that: The second supply assembly (200) further comprises a water pump (230), one end of the water pump (230) being arranged in the water supply tank (300), and the other end of the water pump (230) being arranged in the water supply tank (210), and the water supply tank (210) being in an overflow state through the water pump (230); Wherein, the second supply component (200) and / or the first supply component (100) are both arranged above the notch of the water supply tank (300).

4. The water-sand supply device according to claim 1, characterized in that: The hopper member (110) comprises a first hopper (111) and a second hopper (112), wherein the discharge port of the first hopper (111) is arranged above the feed port of the second hopper (112); One end of the transmission component (120) is fixedly connected to the discharge port of the second hopper (112), and the weighing control component (130) is arranged below the second hopper (112) and is supported and connected to the second hopper (112).

5. The water-sand supply device according to claim 4, characterized in that: The first supply assembly (100) further comprises a hopper support (150) vertically arranged in the height direction, and the first hopper (111) is movably arranged above the second hopper (112) along the hopper support (150).

6. The water-sand supply device according to claim 4, characterized in that: A vibrating member (113) is also fixedly connected to the outer wall of the second hopper (112).

7. A water and sand supply control method, characterized in that: The water-sand supply device according to any one of claims 1 to 6, wherein the method comprises: Determining a weight change rate of the material according to a weight change of the material in the hopper member (110) weighed by a weighing control member (130) in the water-sand supply device within a first time period; According to the weight change rate of the material, determining the transmission rate of the transmission element (120) corresponding to the weight change rate, wherein when the weight change rate is within a first range, the transmission rate of the transmission element (120) is a first transmission rate, when the weight change rate is within a second range, the transmission rate of the transmission element (120) is a second transmission rate, and when the weight change rate is within a third range, the transmission rate of the transmission element (120) is a third transmission rate, the first transmission rate is less than the second transmission rate, and the second transmission rate is less than the third transmission rate; The transmission element (120) is controlled according to the transmission rate of the transmission element (120).

8. The method according to claim 7, characterized in that The method further comprises: Determining the flow rate change rate of the water flow according to the flow rate change of the water flow at the water outlet end measured by the water conveying member (220) in the water and sand supply device during the first time period; According to the flow rate change rate of the water flow and the weight change rate corresponding to the weight change condition, determining the speed of the water delivery member (220) corresponding to the flow rate change rate; The water delivery member (220) is controlled according to the speed of the water delivery member (220).

9. The method according to claim 7, characterized in that: The method further includes: when the weight change rate is within a second range, the second transmission rate satisfies: y = B x + A; Wherein, y represents the weight change rate of the material, x represents the rate of the transmission element (120), A represents the first correlation coefficient, and B represents the second correlation coefficient.

10. The method according to claim 7, characterized in that The method further comprises: When the weight change rate is within a third range, a height difference between a discharge port of a first hopper (111) and a feed port of a second hopper (112) in the hopper member (110) is controlled, wherein the height difference satisfies: Wherein, H represents the height difference between the discharge port of the first hopper (111) and the feed port of the second hopper (112) in the hopper member (110), y represents the weight change rate currently detected, and y max represents the maximum allowed weight change rate, T represents the time required from detecting the weight change to actually adjusting the height difference, α represents the third correlation coefficient, and β represents the fourth correlation coefficient.

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