A cyclone control system and a cyclone control method

Abstract

Embodiments of the present application provide a cyclone control system and a cyclone control method. The cyclone control system comprises a cyclone and an adjusting module. The cyclone comprises a grit nozzle composed of a plurality of blades. The upper end of the grit nozzle is connected to the bottom of the conical body of the cyclone. The lower end of the grit nozzle is used for discharging fluid. The grit nozzle is a hollow cylindrical or hollow circular truncated conical shape with openings at the upper end and the lower end. The upper edge of each blade constitutes the upper end of the grit nozzle. The inner side of each blade part constitutes the inner wall of the grit nozzle. The inner side of any blade part is attached to the outer side of one adjacent blade. The outer side of any blade part is attached to the inner side of another adjacent blade. The adjusting module is used for adjusting the aperture of the lower end of the grit nozzle. The technical solution provided by the embodiments of the present application can adaptively adjust the size of the grit nozzle, thereby improving the gritting efficiency.

Description

Technical Field

[0001] This application relates to the field of hydrocyclone technology, and more specifically, to a hydrocyclone control system and a hydrocyclone control method. Background Technology

[0002] A hydrocyclone is a classifying device that uses centrifugal force to accelerate the settling of mineral particles. A hydrocyclone includes a discharge nozzle, which is the outlet at the bottom of the hydrocyclone and is used to discharge larger particles. The size of the discharge nozzle affects parameters such as pressure distribution, vortex intensity, vortex core position, and radial velocity distribution inside the hydrocyclone, thus directly affecting the classification effect. However, existing hydrocyclones typically use discharge nozzles of fixed sizes. This not only requires frequent adjustments to production processes to accommodate the nozzle size but also makes the nozzles prone to wear. When the nozzles are severely worn, production must be interrupted for replacement, leading to low settling efficiency, high energy consumption, and poor adaptability. Therefore, how to achieve adaptive adjustment of the discharge nozzle size is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] The embodiments of this application provide a hydrocyclone control system and a hydrocyclone control method. Based on the technical solution provided in this application, the size of the underflow nozzle can be adaptively adjusted, thereby improving the underflow efficiency.

[0004] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0005] According to a first aspect of the embodiments of this application, a hydrocyclone control system is provided. The system includes a hydrocyclone and an adjustment module. The hydrocyclone includes a sand-collecting nozzle composed of multiple blades. The upper end of the sand-collecting nozzle is connected to the bottom of the conical body of the hydrocyclone, and the lower end of the sand-collecting nozzle is used to discharge fluid. The sand-collecting nozzle is a hollow cylinder or a hollow frustum with both the upper and lower ends open. The upper edge of each blade forms the upper end of the sand-collecting nozzle, and the inner surface of each blade portion forms the inner wall of the sand-collecting nozzle. The inner surface of any blade portion is attached to the outer surface of one of its adjacent blades, and the outer surface of any blade portion is attached to the inner surface of another adjacent blade. The adjustment module is used to adjust the aperture of the lower end of the sand-collecting nozzle.

[0006] In some embodiments of this application, based on the foregoing scheme, the adjustment module includes: a data acquisition unit, a control unit, a drive unit, and a transmission unit; the data acquisition unit is used to acquire state data inside the hydrocyclone; the control unit is used to control the drive unit to perform drive actions according to the state data; the drive unit is connected to each of the blades through the transmission unit, and the drive unit is used to provide driving force to each of the blades to adjust the orifice diameter at the lower end of the sand discharge nozzle.

[0007] In some embodiments of this application, based on the foregoing scheme, the number of driving units is the same as the number of blades; the driving units adjust the aperture of the lower end of the sand-collecting nozzle by driving the lower edge of each blade away from or close to the central axis of the sand-collecting nozzle.

[0008] In some embodiments of this application, based on the aforementioned scheme, the number of driving units is 1; the driving unit adjusts the aperture at the lower end of the sand-collecting nozzle by driving and changing the overlap area between any one blade and its two adjacent blades.

[0009] In some embodiments of this application, based on the foregoing scheme, the number of driving units is the same as the number of blades; the driving unit adjusts the aperture of the lower end of the sand-collecting nozzle by driving the upper edge of each blade closer to the central axis of the sand-collecting nozzle and the lower edge of each blade away from the central axis, or by driving the upper edge of each blade away from the central axis and the lower edge of each blade closer to the central axis.

[0010] In some embodiments of this application, based on the aforementioned scheme, the upper and lower edges of each blade are both arc-shaped or involute-shaped.

[0011] According to a second aspect of the embodiments of this application, a hydrocyclone control method is provided. The method is executed on the adjustment module described in any embodiment of the first aspect above. The method includes: acquiring internal state data of the hydrocyclone while it is in operation; and adjusting the orifice diameter at the lower end of the sand discharge nozzle according to the state data.

[0012] In some embodiments of this application, based on the foregoing scheme, the state data includes temperature data, and adjusting the orifice diameter at the lower end of the sand-collecting nozzle according to the state data includes: if the temperature data exceeds a preset temperature, then the orifice diameter at the lower end of the sand-collecting nozzle is reduced; if the temperature data is lower than the preset temperature, then the orifice diameter at the lower end of the sand-collecting nozzle is increased.

[0013] In some embodiments of this application, based on the foregoing scheme, the state data includes pressure data, and adjusting the orifice diameter at the lower end of the sand-collecting nozzle according to the state data includes: if the pressure data exceeds a preset pressure, then increasing the orifice diameter at the lower end of the sand-collecting nozzle; if the pressure data is lower than the preset pressure, then decreasing the orifice diameter at the lower end of the sand-collecting nozzle.

[0014] In some embodiments of this application, based on the foregoing scheme, the state data includes fluid concentration data, and adjusting the orifice diameter at the lower end of the sand-collecting nozzle according to the state data includes: if the fluid concentration data exceeds a preset fluid concentration, then increasing the orifice diameter at the lower end of the sand-collecting nozzle; if the fluid concentration data is lower than the preset fluid concentration, then decreasing the orifice diameter at the lower end of the sand-collecting nozzle.

[0015] The technical solution of this application provides a hydrocyclone control system, including a hydrocyclone and an adjustment module. The hydrocyclone includes a sand-collecting nozzle composed of multiple blades. The upper end of the sand-collecting nozzle is connected to the bottom of the conical body of the hydrocyclone, and the lower end of the sand-collecting nozzle is used to discharge fluid. The sand-collecting nozzle is a hollow cylinder or a hollow frustum with openings at both the upper and lower ends. The upper edge of each blade forms the upper end of the sand-collecting nozzle, and the inner surface of each blade portion forms the inner wall of the sand-collecting nozzle. The inner surface of any blade portion is attached to the outer surface of one of its adjacent blades, and the outer surface of any blade portion is attached to the inner surface of another adjacent blade. The adjustment module is used to adjust the orifice diameter at the lower end of the sand-collecting nozzle. The provided hydrocyclone control method can acquire the internal state data of the hydrocyclone during its working state and adjust the orifice diameter at the lower end of the sand-collecting nozzle based on the state data. Therefore, the technical solution provided in this application, by designing a sand-collecting nozzle composed of multiple blades arranged in a certain manner, enables the sand-collecting nozzle to adaptively change the size of its lower end orifice under the control of the adjustment module according to the internal state parameters of the hydrocyclone. This eliminates the need to frequently adjust the production process conditions to adapt to the size of the sand-collecting nozzle, thereby improving the sand-collecting efficiency of the hydrocyclone. Furthermore, since the size of the sand-collecting nozzle is adjustable, wear on the sand-collecting nozzle can be reduced, and the frequency of replacing the sand-collecting nozzle can be decreased, thereby improving the sand-collecting efficiency and operational stability of the hydrocyclone.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0018] Figure 1 A schematic diagram of the architecture of a cyclone control system according to an embodiment of this application is shown;

[0019] Figure 2A schematic diagram of a cyclone separator according to an embodiment of this application is shown;

[0020] Figure 3 A schematic diagram of the structure of a sand-removing nozzle according to an embodiment of this application is shown;

[0021] Figure 4 A schematic diagram of a scenario for adjusting the orifice diameter at the lower end of the underflow nozzle according to an embodiment of this application is shown;

[0022] Figure 5 A schematic diagram of a scenario for adjusting the orifice diameter at the lower end of the underflow nozzle according to an embodiment of this application is shown;

[0023] Figure 6 A schematic diagram of a scenario for adjusting the orifice diameter at the lower end of the underflow nozzle according to an embodiment of this application is shown;

[0024] Figure 7 A schematic flowchart of a cyclone control method according to an embodiment of this application is shown.

[0025] The annotations in the attached figures are explained as follows:

[0026] 100—Hydrocyclone, 110—Overflow pipe

[0027] 120—Feed pipe; 130—Cone shape of hydrocyclone;

[0028] 131—The conical bottom of the hydrocyclone,

[0029] 140—Sand setter nozzle, 141—Blade,

[0030] 142—Upper edge of the leaf blade; 143—Inner surface of the leaf blade.

[0031] 144—Upper end of the sand settling nozzle; 145—Outer surface of the blade;

[0032] 146—Lower end of the undersink nozzle; 147—Diameter of the lower end of the undersink nozzle.

[0033] 148—Lower edge of the leaf,

[0034] 200—Adjustment Module; 210—Acquisition Unit.

[0035] 220—Control unit, 230—Drive unit

[0036] 240—Transmission unit. Detailed Implementation

[0037] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0038] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] The following detailed description of some embodiments of this application will be provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] According to a first aspect of the embodiments of this application, a cyclone control system is provided.

[0042] See Figure 1 The diagram shows a schematic architecture of a cyclone control system according to an embodiment of this application.

[0043] In this application, the hydrocyclone control system may include a hydrocyclone 100 and an adjustment module 200.

[0044] In this application, optionally, the hydrocyclone 100 can be a hydrocyclone, and one structure of the hydrocyclone 100 can be as follows: Figure 2 As shown.

[0045] See Figure 2 The diagram shows a schematic structural diagram of a cyclone separator according to an embodiment of this application.

[0046] The hydrocyclone 100 is a classifying device that uses centrifugal force to accelerate the settling of mineral particles.

[0047] Optionally, in this application, the hydrocyclone 100 may include an overflow pipe 110, a feed pipe 120, and a conical body 130. Under pressure, the slurry is fed into the hydrocyclone along the feed pipe 120, and then rotates within the conical body 130. Coarse particles, due to their large inertial centrifugal force, are thrown against the wall and gradually flow downwards, being discharged from the bottom as sediment. Fine particles move towards the wall at a lower speed and are carried by the liquid flowing towards the center, flowing out through the central overflow pipe 110, becoming overflow. The hydrocyclone 100 requires pressurized feeding, thus consuming a large amount of power, but it has a small footprint, is inexpensive, has a large throughput, high classification efficiency, and can produce very fine overflow products. It is often used as a classification device in closed-circuit grinding.

[0048] Optionally, in this application, the hydrocyclone 100 may also include a sand discharge nozzle 140. The upper end of the sand discharge nozzle 140 is connected to the bottom 131 of the conical body of the hydrocyclone, and the lower end 146 of the sand discharge nozzle is used to discharge fluid.

[0049] Understandably, the coarse-particle fluid separated by the hydrocyclone is discharged as sand after passing through the lower end 146 of the sand discharge nozzle.

[0050] In this application, optionally, the provided sand-removing nozzle 140 is composed of a plurality of blades 141.

[0051] Optionally, the provided sand-removing nozzle 140 is a hollow cylinder or a hollow frustum with openings at both the upper and lower ends. The upper edge 142 of each blade constitutes the upper end of the sand-removing nozzle, the inner surface of each blade portion constitutes the inner wall of the sand-removing nozzle, the inner surface of any blade portion is attached to the outer surface 145 of one of its adjacent blades, and the outer surface of any blade portion is attached to the inner surface 143 of another adjacent blade.

[0052] It should be noted that the fluid flowing out of the conical body 130 of the hydrocyclone first flows into the sand discharge nozzle 140 through the round hole at the upper end 144 of the sand discharge nozzle, and is finally discharged from the round hole at the lower end 146 of the sand discharge nozzle.

[0053] It should also be noted that the number of blades 141 set in this application is not limited and can be selected according to the actual situation.

[0054] It should also be noted that the material used for the blades 141 in this application can be a metal material with wear resistance, corrosion resistance, and high strength, such as stainless steel or alloy steel. It is understood that using a material with wear resistance and other properties to construct the sand-collecting nozzle 140 can increase the service life of the sand-collecting nozzle 140, thereby improving the sand-collecting efficiency of the hydrocyclone 100.

[0055] The following is combined Figure 3 The sand settling nozzle 140 provided in this application is described in detail.

[0056] See Figure 3 The diagram shows a structural schematic of a sand-removing nozzle according to an embodiment of this application.

[0057] Figure 3 (1) is a schematic diagram of the structure of a blade 141. Each blade 141 has an upper edge 142 and a lower edge 148. The inner surface 143 of each blade has a concave structure.

[0058] In this embodiment, optionally, the upper and lower edges of each blade are arc-shaped or involute-shaped.

[0059] Figure 3 (2) A detailed structural diagram of a sand-removing nozzle 140 composed of multiple blades 141. From Figure 3 (2) It can be seen that the sand-removing nozzle includes 12 blades 141, and each of the 12 blades 141 has two adjacent blades. Furthermore, part of the inner surface of the 12 blades 141 forms the inner wall of the sand-removing nozzle 140, thereby allowing the fluid to flow through the inner wall of the sand-removing nozzle.

[0060] from Figure 3 As shown in (2), the inner surface of any one of the 12 blades 141 is attached to the outer surface of one of its adjacent blades, and the outer surface of the same blade is attached to the inner surface of another adjacent blade. This results in an overlap between any one blade and its two adjacent blades.

[0061] It should be noted that the overlap area between any one blade and its two adjacent blades can be changed.

[0062] from Figure 3 As shown in (2), the upper edge 142 of the 12 blades forms the upper end of the sand-removing nozzle, creating a circular hole that allows fluid to flow into the nozzle. The lower edge 148 of the 12 blades forms the lower end of the sand-removing nozzle, creating a circular hole that allows fluid to be discharged from the nozzle.

[0063] Figure 3 (3) shows a bottom view of a sand filter nozzle, that is, the lower end of the sand filter nozzle. Figure 3 (3) The washout nozzle includes 6 blades, from Figure 3 (3) It can be seen that there is a round hole at the lower end of the sand settling nozzle, and the diameter of the round hole is the same as the diameter of the lower end of the sand settling nozzle, 147.

[0064] It should be noted that the upper aperture and the lower aperture 147 of the undersink provided in this application may be the same or different. If the upper aperture and the lower aperture 147 are the same, it indicates that the undersink is a hollow cylinder; if the upper aperture and the lower aperture 147 are different, it indicates that the undersink is a hollow frustum.

[0065] In this application, the adjustment module 200 is provided for adjusting the orifice diameter 147 at the lower end of the sand settling nozzle.

[0066] It is understandable that, through this adjustment module 200, such as Figure 3 (3) The aperture 147 at the lower end of the sand-collecting nozzle shown can be changed. The adjustment module 200 can adjust the aperture 147 at the lower end of the sand-collecting nozzle by adjusting the position of each blade.

[0067] It should be noted that when adjusting the diameter 147 of the lower end of the sand-removing nozzle, the principle that the adjusting module 200 should follow is that no gaps should be generated in the inner wall of the sand-removing nozzle so that the fluid flowing through the sand-removing nozzle only flows out from the lower end of the sand-removing nozzle.

[0068] In this application, optionally, the adjustment module 200 includes a data acquisition unit 210, a control unit 220, a drive unit 230, and a transmission unit 240.

[0069] The acquisition unit 210 is used to acquire state data inside the hydrocyclone. The control unit 220 is used to control the drive unit 230 to perform drive actions according to the state data; the drive unit 230 is connected to each of the blades 141 through the transmission unit 240, and the drive unit 230 is used to provide driving force to each of the blades 141 to adjust the orifice diameter 147 at the lower end of the sand discharge nozzle.

[0070] In this embodiment, optionally, the state parameters inside the hydrocyclone collected by the acquisition unit 210 include, but are not limited to, temperature data, pressure data, fluid concentration data, etc. The acquisition unit 210 can collect the state parameters inside the hydrocyclone through sensors such as temperature sensors and pressure sensors.

[0071] In this embodiment, optionally, the acquisition unit 210 can transmit the acquired state parameters inside the hydrocyclone to the control unit 220 via a wired or wireless connection.

[0072] In this embodiment, it should be noted that after receiving the status data collected by the acquisition unit 210, the control unit 220 can determine whether to issue a drive command to the drive unit based on a pre-designed PID control algorithm or fuzzy control algorithm. If it is determined that a drive command needs to be issued, the control unit 220 issues the drive command, along with the corresponding drive operation parameters, to the drive unit 230. Specifically, this application will describe the cyclone control method in detail below, so it will not be repeated here.

[0073] In this embodiment, optionally, a manual control interface can be set in the control unit 220, so that drive commands and corresponding drive operation parameters can be manually sent to the drive unit 230.

[0074] In this embodiment, optionally, the control unit 220 can be connected to the drive unit 230 via cables, pipes, signal lines, etc., so as to realize the data transmission of drive commands and drive operation parameters.

[0075] In this embodiment, optionally, the drive unit 230 may be a device that can provide rotational torque, such as an electric motor, hydraulic cylinder, or pneumatic cylinder, and its materials should meet relevant standards and requirements.

[0076] In this embodiment, optionally, a manual control component can be set in the drive unit 230, such as a knob, button, touch screen, etc., so that the drive unit 230 can be manually controlled to perform drive actions.

[0077] In this embodiment, optionally, the transmission unit 240 may be made of components such as shafts, gears, and chains, and its materials should have good mechanical properties and durability.

[0078] In this application, each blade 141 corresponds to a transmission unit 240, which can be set at the center of each blade 141, so as to change its own state based on the driving force provided by the drive unit 230.

[0079] In this application, the implementation of the drive unit 230 adjusting the orifice diameter 147 at the lower end of the sand-collecting nozzle includes at least the following three methods.

[0080] In the first embodiment, the number of driving units is the same as the number of blades; the driving units adjust the aperture of the lower end of the sand-collecting nozzle by driving the lower edge of each blade away from or towards the central axis of the sand-collecting nozzle.

[0081] In this embodiment, it should be noted that since each blade 141 rotates in a different direction during the adjustment of the aperture at the lower end of the sand discharge nozzle, a corresponding drive unit 230 is required for each blade 141 so as to provide a precise driving force for each blade 141.

[0082] In this embodiment, it should also be noted that during the process of driving the lower edge 148 of each blade away from or close to the central axis of the sand-collecting nozzle, the aperture of the upper end of the sand-collecting nozzle remains unchanged.

[0083] It is understood that, in this embodiment, the diameter of the upper end of the sand discharge nozzle can be set to be the same as the diameter of the fluid flowing out of the conical bottom 131 of the hydrocyclone, or it can be set to be slightly larger than the diameter of the fluid flowing out of the conical bottom 131 of the hydrocyclone. Specifically, this application does not limit it here.

[0084] To enable those skilled in the art to better understand this embodiment, the following will be combined with... Figure 4 Let's illustrate with examples.

[0085] See Figure 4 The diagram illustrates a scenario of adjusting the orifice diameter at the lower end of the underflow nozzle according to an embodiment of this application.

[0086] Figure 4 (1) A schematic diagram of the structure of the sand-removing nozzle 140 before adjusting the orifice diameter at the lower end of the sand-removing nozzle. If the drive unit 230 receives a drive command that requires increasing the orifice diameter at the lower end of the sand-removing nozzle, it can drive the lower edges of each blade to move away from the central axis of the sand-removing nozzle simultaneously, thereby increasing the orifice diameter at the lower end of the sand-removing nozzle, such as... Figure 4 As shown in (2).

[0087] In the second embodiment, the number of driving units 230 is 1; the driving unit 230 adjusts the aperture at the lower end of the sand discharge nozzle by driving and changing the overlap area between any one blade and its two adjacent blades.

[0088] In this embodiment, since the rotation direction of each blade 141 is the same during the process of adjusting the aperture of the lower end of the sand discharge nozzle, a driving unit 230 can be set up to provide precise driving force to each blade.

[0089] In this embodiment, it should be noted that during the process of changing the overlap area between any one blade and its two adjacent blades, the aperture at the upper end and the aperture at the lower end of the sand-absorbing nozzle will be adjusted simultaneously to either increase or decrease. That is, if the overlap area between any one blade and its two adjacent blades is reduced, then the aperture at the upper end and the aperture at the lower end of the sand-absorbing nozzle will both decrease; if the overlap area between any one blade and its two adjacent blades is increased, then the aperture at the upper end and the aperture at the lower end of the sand-absorbing nozzle will both increase.

[0090] In this embodiment, it is understood that the orifice size at the upper end of the sand-collecting nozzle needs to be set to be larger than the diameter of the fluid flowing out from the bottom 131 of the conical body of the hydrocyclone, so as to facilitate the adjustment of the orifice size at the lower end of the sand-collecting nozzle.

[0091] To enable those skilled in the art to better understand this embodiment, the following will be combined with... Figure 5 Let's illustrate with examples.

[0092] See Figure 5 The diagram illustrates a scenario of adjusting the orifice diameter at the lower end of the underflow nozzle according to an embodiment of this application.

[0093] Figure 5 (1) A schematic diagram of the structure of the sand-removing nozzle 140 before adjusting the aperture at the lower end of the sand-removing nozzle. If the drive unit 230 receives a drive command that requires increasing the aperture at the lower end of the sand-removing nozzle, it can provide a driving force to the blade 141 to increase the overlap area between any blade and its two adjacent blades, thereby increasing the aperture at the lower end of the sand-removing nozzle. Figure 5 As shown in (2).

[0094] The third implementation: the number of driving units 230 is the same as the number of blades 141; the driving unit 230 adjusts the aperture of the lower end of the sand-collecting nozzle by driving the upper edge 142 of each blade closer to the central axis of the sand-collecting nozzle 140 and the lower edge 148 of each blade away from the central axis, or by driving the upper edge 142 of each blade away from the central axis and the lower edge 148 of each blade closer to the central axis.

[0095] In this embodiment, it should be noted that since each blade 141 rotates in a different direction during the adjustment of the aperture at the lower end of the sand discharge nozzle, a corresponding drive unit is required for each blade 141 so as to provide precise driving force for each blade.

[0096] In this embodiment, it should be noted that during the process of driving the lower edge 148 of each blade away from or close to the central axis of the sand-collecting nozzle, the plane on which the upper end 144 of the sand-collecting nozzle is located remains unchanged. If the aperture of the lower end of the sand-collecting nozzle is reduced, the aperture of the upper end of the sand-collecting nozzle will be increased, and if the aperture of the lower end of the sand-collecting nozzle is increased, the aperture of the upper end of the sand-collecting nozzle will be reduced.

[0097] In this embodiment, it is understood that the orifice size at the upper end of the sand-collecting nozzle needs to be set to be larger than the diameter of the fluid flowing out from the bottom 131 of the conical body of the hydrocyclone, so as to facilitate the adjustment of the orifice size at the lower end of the sand-collecting nozzle.

[0098] To enable those skilled in the art to better understand this embodiment, the following will be combined with... Figure 6 Let's illustrate with examples.

[0099] See Figure 6 The diagram illustrates a scenario of adjusting the orifice diameter at the lower end of the underflow nozzle according to an embodiment of this application.

[0100] Figure 6 (1) A schematic diagram of the structure of the sand-removing nozzle 140 before adjusting the aperture at the lower end of the sand-removing nozzle. If the drive unit 230 receives a drive command that requires reducing the aperture at the lower end of the sand-removing nozzle, it can drive the lower edges 148 of each blade to simultaneously move closer to the central axis of the sand-removing nozzle, and the upper edges 142 of each blade to simultaneously move away from the central axis of the sand-removing nozzle, thereby reducing the aperture at the lower end of the sand-removing nozzle. Figure 6 (2) As shown. In summary, if the specific implementation of the drive unit 230 adjusting the aperture of the lower end of the sand-collecting nozzle is different, the aperture size of the upper end of the sand-collecting nozzle, the number of drive units 230, etc., should be set to match. Those skilled in the art can make specific designs for the hydrocyclone control system according to the actual situation, and this application does not limit it here.

[0101] According to a second aspect of the embodiments of this application, a cyclone control method is provided. This method is performed on the adjustment module 200 of any embodiment of the first aspect described above.

[0102] See Figure 7 Specifically, this includes steps 710 to 720.

[0103] Step 710: Under the working state of the hydrocyclone, acquire the state data inside the hydrocyclone.

[0104] In this embodiment, the state data inside the hydrocyclone can be acquired through the acquisition unit 210 in the adjustment module 200. This state data includes, but is not limited to, temperature data, pressure data, and fluid concentration data.

[0105] See also Figure 7Step 720: Adjust the diameter of the lower end of the sand discharge nozzle according to the state data.

[0106] In this embodiment, after receiving the status data collected by the acquisition unit 210, the control unit 220 in the adjustment module 200 determines whether to issue a drive command to the drive unit 230 of the adjustment module 200 according to a pre-set PID control algorithm or fuzzy control algorithm. If a drive command is to be issued, the drive operation parameters corresponding to the drive command need to be determined so that the drive unit 230 can be controlled to run according to the drive operation parameters to adjust the diameter of the lower end of the sand discharge nozzle.

[0107] The specific implementation methods of step 720 include at least the following three:

[0108] The first implementation method is carried out under the condition that the collected state data includes temperature data. Specifically, it includes steps 721A to 722A:

[0109] Step 721A: If the temperature data exceeds the preset temperature, then reduce the diameter of the lower end of the sand discharge nozzle.

[0110] Step 722A: If the temperature data is lower than the preset temperature, then increase the diameter of the lower end of the sand discharge nozzle.

[0111] In this embodiment, optionally, after receiving the temperature data sent by the acquisition unit 210, the control unit 220 can determine whether the current temperature data inside the hydrocyclone exceeds or falls below a preset temperature. If it exceeds or falls below the preset temperature, it can send a driving command to the drive unit 230. The driving command includes corresponding driving operation parameters, including but not limited to the direction and magnitude of the driving force provided by the drive unit 230, so as to adjust the orifice diameter at the lower end of the sand discharge nozzle to a certain value.

[0112] In this embodiment, optionally, if the temperature data is equal to the preset temperature, the orifice diameter at the lower end of the sand-collecting nozzle does not need to be adjusted.

[0113] In this embodiment, it should be noted that if the temperature data exceeds the preset temperature, it indicates that the feed viscosity is too low or the water volume is too high. In this case, the aperture size at the lower end of the underflow nozzle should be reduced to lower the temperature inside the hydrocyclone, thereby increasing the underflow concentration.

[0114] In this embodiment, it should also be noted that if the temperature data is lower than the preset temperature, it indicates that the viscosity of the feed is too high or the water volume is too low. In this case, the orifice size at the lower end of the sand discharge nozzle should be increased to increase the temperature and reduce the sand concentration.

[0115] The second implementation of step 720: This implementation is carried out under the condition that the collected state data includes pressure data. Specifically, it includes steps 721B to 722B:

[0116] Step 721B: If the pressure data exceeds the preset pressure, the orifice diameter at the lower end of the sand discharge nozzle is increased.

[0117] Step 722B: If the pressure data is lower than the preset pressure, then reduce the diameter of the lower end of the sand discharge nozzle.

[0118] In this embodiment, optionally, after receiving the pressure data sent by the acquisition unit 210, the control unit 220 can determine whether the pressure data inside the current hydrocyclone exceeds or falls below a preset pressure. If it exceeds or falls below the preset pressure, it can send a drive command to the drive unit 230. The drive command includes corresponding drive operating parameters, including but not limited to the direction and magnitude of the drive force provided by the drive unit, so as to adjust the orifice diameter at the lower end of the sand discharge nozzle to a certain value.

[0119] In this embodiment, optionally, if the pressure data is equal to the preset pressure, the orifice diameter at the lower end of the sand-collecting nozzle does not need to be adjusted.

[0120] In this embodiment, it should be noted that if the pressure data inside the hydrocyclone exceeds the preset pressure, it indicates that the feed concentration is too high or the underflow port is too small. In this case, the diameter of the lower end of the underflow nozzle should be increased to reduce the pressure and reduce the amount of coarse particles in the overflow.

[0121] In this embodiment, it should be noted that if the pressure inside the hydrocyclone is lower than the preset pressure, it indicates that the feed concentration is too low or the underflow port is too large. In this case, the diameter of the lower end of the underflow nozzle should be reduced to increase the pressure and increase the fine particles in the overflow.

[0122] The third implementation of step 720 is carried out under the condition that the collected state data includes fluid concentration data. Specifically, it includes steps 721C to 722C:

[0123] Step 721C: If the fluid concentration data exceeds the preset fluid concentration, the orifice diameter at the lower end of the sand discharge nozzle is increased.

[0124] Step 722C: If the fluid concentration data is lower than the preset fluid concentration, then reduce the orifice diameter at the lower end of the sand discharge nozzle.

[0125] In this embodiment, optionally, after receiving the fluid concentration data sent by the acquisition unit 210, the control unit 220 may make a judgment to determine whether the current fluid concentration data inside the hydrocyclone exceeds or is lower than the preset fluid concentration. If it exceeds or is lower than the preset fluid concentration, it may issue a driving command to the driving unit 230. The driving command includes corresponding driving operation parameters, including but not limited to the driving force direction and driving force magnitude provided by the driving unit 230, so as to adjust the orifice diameter at the lower end of the sand discharge nozzle to a certain value.

[0126] In this embodiment, optionally, if the fluid concentration data is equal to the preset fluid concentration, the orifice diameter at the lower end of the sand discharge nozzle may not be adjusted.

[0127] In this embodiment, if the fluid concentration data inside the hydrocyclone exceeds the preset fluid concentration, it indicates that the solid content of the feed is too high or the classification effect is not good. At this time, the aperture size at the lower end of the sand discharge nozzle should be increased to reduce the concentration and improve the classification efficiency.

[0128] In this embodiment, if the fluid concentration data inside the hydrocyclone is lower than the preset fluid concentration, it indicates that the solid content of the feed is too low or the classification effect is too good. At this time, the aperture size at the lower end of the sand discharge nozzle should be reduced to increase the concentration and reduce over-classification.

[0129] In some embodiments of this application, a hydrocyclone control system is provided, including a hydrocyclone and an adjustment module. The hydrocyclone includes a sand-collecting nozzle composed of multiple blades. The upper end of the sand-collecting nozzle is connected to the bottom of the conical body of the hydrocyclone, and the lower end of the sand-collecting nozzle is used to discharge fluid. The sand-collecting nozzle is a hollow cylinder or a hollow frustum with both the upper and lower ends open. The upper edge of each blade forms the upper end of the sand-collecting nozzle, and the inner surface of each blade portion forms the inner wall of the sand-collecting nozzle. The inner surface of any blade portion is attached to the outer surface of one of its adjacent blades, and the outer surface of any blade portion is attached to the inner surface of another adjacent blade. The adjustment module is used to adjust the orifice diameter at the lower end of the sand-collecting nozzle. The provided hydrocyclone control method can acquire the internal state data of the hydrocyclone during its working state and adjust the orifice diameter at the lower end of the sand-collecting nozzle based on the state data. The technical solution of this application can achieve at least the following technical effects:

[0130] Firstly, the technical solution provided in this application designs a sand-collecting nozzle composed of multiple blades arranged in a certain manner. This allows the sand-collecting nozzle to adaptively change the size of its lower end according to the internal state parameters of the hydrocyclone under the control of the adjustment module. This eliminates the need to frequently adjust the production process conditions to adapt to the size of the sand-collecting nozzle, thereby improving the sand-collecting efficiency of the hydrocyclone. Furthermore, since the size of the sand-collecting nozzle is adjustable, wear on the sand-collecting nozzle can be reduced, and the frequency of replacing the sand-collecting nozzle can be reduced, thereby improving the sand-collecting efficiency of the hydrocyclone.

[0131] Secondly, by adjusting the orifice diameter at the lower end of the undersand nozzle, it can adapt to changes in slurry properties, particle size distribution, flow rate, and concentration, thereby expanding the applicability and operational stability of the hydrocyclone. This application can automatically or manually adjust the orifice diameter at the lower end of the undersand nozzle according to different working conditions and requirements, thereby improving undersand removal efficiency, reducing energy loss inside the hydrocyclone, and ultimately reducing the energy consumption required for hydrocyclone operation.

[0132] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A hydrocyclone control system, characterized in that, The system includes a hydrocyclone and a regulating module, wherein the hydrocyclone includes a sand-collecting nozzle composed of multiple blades; The upper end of the sand discharge nozzle is connected to the bottom of the conical body of the hydrocyclone, and the lower end of the sand discharge nozzle is used to discharge fluid; The sand discharge nozzle is a hollow cylinder or a hollow frustum with openings at both the top and bottom. The upper edge of each blade forms the upper end of the sand-receiving nozzle, the lower edge of each blade forms the lower end of the sand-receiving nozzle, the inner side of each blade portion forms the inner wall of the sand-receiving nozzle, the inner side of any blade portion is attached to the outer side of one of its adjacent blades, and the outer side of any blade portion is attached to the inner side of another adjacent blade. The adjustment module is used to adjust the orifice diameter at the lower end of the sand-collecting nozzle; The adjustment module includes: a data acquisition unit, a control unit, a drive unit, and a transmission unit; The acquisition unit is used to acquire state data inside the hydrocyclone; During the operation of the hydrocyclone, acquire the internal state data of the hydrocyclone; The status data includes temperature data, pressure data, and fluid concentration data; The control unit is used to control the drive unit to perform drive actions based on the status data; The drive unit is connected to each of the blades through the transmission unit. The drive unit is used to provide driving force to each of the blades to adjust the orifice diameter at the lower end of the sand discharge nozzle.

2. The system according to claim 1, characterized in that, The number of drive units is the same as the number of blades; the drive units adjust the aperture of the lower end of the sand-collecting nozzle by driving the lower edge of each blade away from or towards the central axis of the sand-collecting nozzle.

3. The system according to claim 1, characterized in that, The number of driving units is 1; the driving unit adjusts the aperture at the lower end of the sand discharge nozzle by driving and changing the overlap area between any one blade and its two adjacent blades.

4. The system according to claim 1, characterized in that, The number of drive units is the same as the number of blades; the drive units adjust the aperture of the lower end of the sand-collecting nozzle by driving the upper edge of each blade closer to the central axis of the sand-collecting nozzle and the lower edge of each blade away from the central axis, or by driving the upper edge of each blade away from the central axis and the lower edge of each blade closer to the central axis.

5. The system according to any one of claims 1 to 4, characterized in that, The upper and lower edges of each blade are either arc-shaped or involute-shaped.

6. A hydrocyclone control method, characterized in that, The hydrocyclone control method is executed using the adjustment module according to any one of claims 1 to 5, the method comprising: During the operation of the hydrocyclone, acquire the internal state data of the hydrocyclone; Adjust the orifice diameter at the lower end of the undersand nozzle based on the aforementioned status data; The hydrocyclone includes a sand-collecting nozzle composed of multiple blades; The upper end of the sand discharge nozzle is connected to the bottom of the conical body of the hydrocyclone, and the lower end of the sand discharge nozzle is used to discharge fluid; The sand discharge nozzle is a hollow cylinder or a hollow frustum with openings at both the top and bottom. The upper edge of each blade forms the upper end of the sand-retaining nozzle, the lower edge of each blade forms the lower end of the sand-retaining nozzle, the inner side of each blade portion forms the inner wall of the sand-retaining nozzle, the inner side of any blade portion is attached to the outer side of one of its adjacent blades, and the outer side of any blade portion is attached to the inner side of another adjacent blade.

7. The method according to claim 6, characterized in that, Adjusting the orifice diameter at the lower end of the underflow nozzle based on the state data includes: If the temperature data exceeds the preset temperature, the diameter of the lower end of the sand discharge nozzle will be reduced. If the temperature data is lower than the preset temperature, the diameter of the lower end of the sand discharge nozzle will be increased.

8. The method according to claim 6, characterized in that, Adjusting the orifice diameter at the lower end of the underflow nozzle based on the state data includes: If the pressure data exceeds the preset pressure, the orifice diameter at the lower end of the sand discharge nozzle will be increased. If the pressure data is lower than the preset pressure, the diameter of the lower end of the sand discharge nozzle will be reduced.

9. The method according to claim 6, characterized in that, Adjusting the orifice diameter at the lower end of the underflow nozzle based on the state data includes: If the fluid concentration data exceeds the preset fluid concentration, the orifice diameter at the lower end of the sand discharge nozzle will be increased. If the fluid concentration data is lower than the preset fluid concentration, the orifice diameter at the lower end of the sand discharge nozzle will be reduced.

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