Pipeline dissolution multiphase flow efficient separation and recovery device

Abstract

The invention discloses a pipelined dissolution multiphase flow high-efficiency separation and recovery device, which relates to the technical field of pipelined dissolution devices, and comprises a sedimentation tank for sedimentation of solid residues and a dissolution solution, and a basic pipeline arranged on a tank body and used for circulation of a mixture composed of the solid residues and the dissolution solution, a flow mixing mechanism for driving a flocculating agent and a mixture in the box body to synchronously flow into the sedimentation tank is arranged on the base direction pipeline, the flow mixing mechanism comprises an annular inner mounting seat fixedly connected to the inner wall of the base direction pipeline, a conical sealing seat is arranged on the base direction pipeline, and the conical sealing seat comprises an integrally-formed conical inclined surface; the flow mixing mechanism is arranged, a low-pressure area generated when the mixture flows through the annular cone channel is utilized, a flocculating agent in the box body is automatically sucked into a basic pipeline, the flocculating agent and the mixture are rapidly mixed in the pipeline, the flocculating agent does not need to be manually added, the flow mixing speed is high, and the flow mixing efficiency is high. And no extra stirring equipment is needed to ensure sufficient mixing of the two components.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline dissolution devices, in particular to a pipeline dissolution multiphase flow high-efficiency separation and recovery device. Background Art

[0002] The pipeline dissolution process is widely used in various fields, such as chemical, pharmaceutical, and food processing. This process achieves dissolution and reaction by mixing raw materials and solvents in a pipeline and performing operations such as heating. It features efficient and continuous production. However, the pipeline dissolution process often produces multiphase flow, a complex fluid state in which multiple phases of substances, such as liquids, solid particles, and gases, coexist and interact.

[0003] In the pipeline dissolution process for lithium concentrate processing, the principle is to mix the lithium concentrate with a solvent (such as acid, alkali, etc.), and then quickly dissolve the material through the high temperature and high pressure environment in the pipeline, so that the lithium element in the lithium concentrate is quickly dissolved into the solvent to form a lithium-containing solution. The dissolution products mainly include dissolution liquid (lithium-containing solution), gas products and residual solid impurities (solid residue).

[0004] Among them, the mixture formed by the gas product, the dissolution liquid and the solid residue is usually initially separated by gravity. However, when the dissolution liquid and the solid residue are subsequently separated, flocculants are often added to neutralize the mixture and promote the sedimentation of the solid residue. In this process, it is usually necessary to accurately adjust the amount of flocculant according to the amount of the mixture, and use a stirring device to ensure that the two are evenly mixed. Among them, on the one hand, the precise control of the amount of flocculant is relatively difficult, and the separation effect may be unstable due to insufficient or excessive dosage; on the other hand, the use of a stirring device not only increases the equipment cost and energy consumption, but may also cause problems such as secondary dispersion due to insufficient or excessive stirring, thereby affecting the separation efficiency of the dissolution liquid and the solid residue, thereby reducing the recovery efficiency of the dissolution. Therefore, a pipelined dissolution multiphase flow high-efficiency separation and recovery device is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a pipelined dissolution multiphase flow high-efficiency separation and recovery device, which has the advantages of not requiring manual addition of flocculants and not requiring additional stirring equipment to ensure mixing of the mixture and flocculants, thereby solving the problem that precise control of the amount of flocculants is difficult and still requires stirring equipment for mixing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pipelined dissolution multiphase flow high-efficiency separation and recovery device, comprising a sedimentation tank for settling solid residue and dissolution liquid, and a base pipeline provided on a tank body for circulating a mixture composed of the solid residue and dissolution liquid, and also comprising a box body for receiving a flocculant, wherein the base pipeline is provided with a mixing mechanism for driving the flocculant and the mixture in the box body to flow synchronously into the sedimentation tank;

[0007] The mixing mechanism includes an inner ring mounting seat fixedly connected to the inner wall of the base pipe, a conical sealing seat coaxial with the inner ring mounting seat is provided on the base pipe, the conical sealing seat includes an integrally formed conical inclined surface, and the inner ring mounting seat includes an integrally formed end inclined surface at a position corresponding to the conical inclined surface, the conical inclined surface and the end inclined surface together forming an annular cone channel for the mixture to flow;

[0008] The inner ring mounting seat is provided with a plurality of micro-diameter channels in gas communication with the annular cone channel, and the inner ring mounting seat is also provided with an annular channel in gas communication with the plurality of micro-diameter channels;

[0009] The base-direction pipeline is provided with a cavity mid-flow seat, and the cavity mid-flow seat is provided with an exhaust component for negatively sucking and discharging gas in the base-direction pipeline;

[0010] The base pipeline is also provided with a flow variable component for adjusting the number of micro-diameter pores connected with the annular cone channel according to the flow rate of the mixture in the base pipeline.

[0011] Preferably, a branch liquid outlet pipe in gas communication with the annular channel is fixedly connected to the base pipe, and one end of the branch liquid outlet pipe away from the base pipe is fixedly passed through the flow seat in the cavity;

[0012] A metal spring is fixedly connected to the inner wall of the flow seat in the cavity, and a return spring is fixedly connected to the upper surface of the metal spring, and one end of the return spring away from the metal spring is fixedly connected to the flow seat in the cavity;

[0013] The metal shrapnel separates the internal space of the flow seat in the cavity and is divided into a sealed upper chamber and a lower chamber from top to bottom, and the upper chamber is in gas communication with the branch liquid outlet pipe;

[0014] The flow seat in the cavity is in gas communication with the annular channel and the box body.

[0015] Preferably, the base duct includes an integrally formed bend portion, the air extraction assembly includes a plurality of gas blocking nets fixedly connected to the inner wall of the bend portion, and a secondary air inlet duct is fixedly passed through the highest horizontal part of the bend portion, and an end of the secondary air inlet duct away from the bend portion is fixedly passed through the flow seat in the cavity and is in gas communication with the lower chamber;

[0016] The lower surface of the metal spring is fixedly connected to a pressure column, and the pressure column is fixedly connected to a pressure plate, and the outer peripheral surface of the pressure plate is in sliding contact with the inner wall of the lower chamber;

[0017] A secondary gas outlet pipe communicating with the gas between the lower chamber and the flow seat in the cavity is fixedly passed through;

[0018] A volume component for driving the upper chamber to restore its initial capacity is provided on the flow seat in the cavity.

[0019] Preferably, the volume assembly includes a hollow frame fixedly connected to the flow seat in the cavity, and the hollow frame is in gas communication with the box body and the upper chamber. The hollow frame is provided with an inner sealing block that can move freely in the vertical direction, and the side wall of the inner sealing block is in sliding contact with the inner wall of the hollow frame;

[0020] The bottom of the inner sealing block is fixedly connected to a turning column, one end of the turning column away from the inner sealing block is fixedly connected to the pressure column, and a rectangular groove for the turning column to slide through is opened on the flow seat in the cavity;

[0021] A branch liquid inlet pipe communicating with the gas between the upper chamber is fixedly passed through the flow seat in the cavity. One end of the branch liquid inlet pipe away from the flow seat in the cavity is fixedly passed through the hollow frame. A return air hole is opened in the inner sealing block corresponding to the position of the branch liquid inlet pipe.

[0022] Preferably, the inner sealing block blocks the branch liquid inlet pipe in the initial state.

[0023] Preferably, the flow variable component includes a middle sealing ring arranged inside the base pipe, the middle sealing ring is in sliding contact with the end inclined surface and the inner wall of the base pipe, a fan-shaped isotropic plate is fixedly connected to the middle sealing ring, and a groove body 1 for the fan-shaped isotropic plate to slide through is opened on the base pipe;

[0024] The outer peripheral surface of the base pipe is fixedly connected to an outer ring frame, and the sector-shaped alignment plate is located inside the outer ring frame and can rotate freely in the horizontal direction;

[0025] The middle sealing ring is provided with a notch groove, and the middle sealing ring blocks part of the micro-diameter pores in an initial state.

[0026] Preferably, a hollow ring is fixedly connected to the inner wall of the base pipeline, and the opposite surfaces of the hollow ring and the conical sealing seat are fixedly connected with directional pins, and the outer circumferential surfaces of the two groups of directional pins are sleeved with a yield spring, and the two ends of the yield spring are respectively fixedly connected to the conical sealing seat and the hollow ring;

[0027] The inner wall of the base pipeline is provided with a plurality of fan-shaped liquid-blocking plates that rotate along a fixed axis. A transverse pressure rod is provided at one end of the fan-shaped liquid-blocking plate that faces the outer ring frame. A second groove body is provided on the base pipeline for the transverse pressure rod to slide through.

[0028] The transverse pressure rod is provided with a sliding block on one end thereof which is fixedly rotated toward the fan-shaped liquid-blocking plate, and the fan-shaped liquid-blocking plate is provided with a slot body 3 for sliding connection of the sliding block;

[0029] One end of the transverse pressure rod away from the fan-shaped liquid-blocking plate is fixedly connected to a limit pin, and the fan-shaped alignment plate is provided with an arc-shaped limit groove for sliding connection of the limit pin.

[0030] Preferably, a connecting sleeve is fixedly sleeved on the base-direction pipeline, and one end of the connecting sleeve away from the base-direction pipeline is fixedly sleeved on the flow seat in the cavity.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention provides a mixing mechanism and utilizes the low-pressure area generated when the mixture flows through the annular cone channel to automatically suck the flocculant in the box into the base pipe and achieve rapid mixing with the mixture in the pipe. There is no need to manually add flocculant, nor is there any need for additional stirring equipment to ensure that the two are fully mixed. It can ensure that the flocculant is in full contact with the solid residue, thereby better exerting the flocculation effect, promoting the sedimentation of the solid residue, and improving the separation efficiency of the eluate and solid residue.

[0033] 2. The present invention sets a runoff variable component to adaptively adjust the number of holes of the micro-diameter channel connected to the annular cone channel according to the change of the mixture flow rate in the base pipeline, thereby changing the amount of flocculant added into the annular cone channel per unit time to adapt to the change of the mixture flow rate at different flow rates, ensuring that the amount of flocculant added can always meet the requirements of solid residue sedimentation, and ensuring the subsequent separation and recovery efficiency of the dissolution liquid and solid residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the components where the conical sealing seat of the present invention is located;

[0036] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0038] Figure 5 This is a schematic diagram of the components where the mounting seat in the ring of the present invention is located;

[0039] Figure 6 This is a schematic diagram of the components where the sealing ring is located in the present invention;

[0040] Figure 7 This is a schematic diagram of the flow seat in the cavity of the present invention;

[0041] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle.

[0042] In the figure: 1, base pipe; 101, bend; 2, conical sealing seat; 201, conical inclined surface; 3, ring inner mounting seat; 4, hollow ring; 5, directional pin; 6, yield spring; 7, middle sealing ring; 8, end inclined surface; 9, notched groove; 10, micro-diameter channel; 11, annular channel; 12, outer ring frame; 13, fan-shaped liquid blocking plate; 14, cross-pressure rod; 15, sliding block; 16, limit pin; 17. Fan-shaped isotropic plate; 18. Arc-shaped limiting groove; 19. Branch liquid outlet pipe; 20. Cavity center flow seat; 21. Metal spring; 22. Return spring; 23. Pressure column; 24. Air pressure plate; 25. Secondary air inlet pipe; 26. Secondary air outlet pipe; 27. Turning column; 28. Hollow frame; 29. Inner sealing block; 30. Return air hole; 31. Branch liquid inlet pipe; 32. Connecting sleeve. DETAILED DESCRIPTION

[0043] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] See also Figures 1 to 8 The present invention provides a technical solution: a pipelined dissolution multiphase flow high-efficiency separation and recovery device, comprising a sedimentation tank for settling solid residue and dissolution liquid, and a base pipeline 1 provided on a tank body for circulating a mixture composed of the solid residue and the dissolution liquid, and also comprising a box body for receiving a flocculant, wherein the base pipeline 1 is provided with a mixing mechanism for driving the flocculant and the mixture in the box body to flow synchronously into the sedimentation tank;

[0045] The mixing mechanism includes an inner ring mounting seat 3 fixedly connected to the inner wall of the base pipe 1, a conical sealing seat 2 coaxial with the inner ring mounting seat 3 is provided on the base pipe 1, the conical sealing seat 2 includes an integrally formed conical inclined surface 201, and the inner ring mounting seat 3 includes an integrally formed end inclined surface 8 at a position corresponding to the conical inclined surface 201, the conical inclined surface 201 and the end inclined surface 8 together forming an annular conical channel for the mixture to flow;

[0046] The inner ring mounting seat 3 is provided with a plurality of micro-diameter channels 10 in gas communication with the annular cone channel, and the inner ring mounting seat 3 is also provided with an annular channel 11 in gas communication with the plurality of micro-diameter channels 10;

[0047] A cavity mid-flow seat 20 is provided on one side of the base-direction pipe 1, which is in gas communication with the annular channel 11 and the box body. A vacuum component for negatively sucking and discharging the gas in the base-direction pipe 1 is provided on the cavity mid-flow seat 20.

[0048] The base pipeline 1 is also provided with a flow variable component for adjusting the number of meshes of the micro-diameter channel 10 connected to the annular cone channel according to the flow rate of the mixture in the base pipeline 1.

[0049] like Figure 1 、 Figure 2 and Figure 6 As shown, when lithium concentrate is dissolved in a pipeline, the lithium concentrate needs to be pretreated by crushing, grinding, etc. to ensure that its particle size meets the requirements of the dissolution process. Among them, smaller particle size can increase the reaction surface area and improve the dissolution efficiency. Subsequently, according to the composition and properties of the lithium concentrate, a suitable solvent is selected, such as acid (sulfuric acid, hydrochloric acid, etc.), alkali (sodium hydroxide, potassium hydroxide, etc.) or other chemical reagents, and the pretreated lithium concentrate is fully mixed with the solvent in a mixer to form a uniform slurry.

[0050] The mixed slurry is sent to a pipeline dissolution device, where the lithium concentrate is rapidly dissolved under high temperature and high pressure conditions by heating and pressurizing. The dissolved material contains dissolved lithium ions and undissolved solid residues, that is, the dissolution usually includes dissolution liquid, solid residue and gaseous products. The lithium-containing dissolution liquid can subsequently be used to extract lithium products through evaporation concentration, crystallization, precipitation and other methods. The separated solid residue can be further processed to recover the valuable metals therein, or treated as waste residue for environmental protection.

[0051] When the dissolved product is separated and recovered, the mixture of gaseous products and solid residue and dissolved liquid is separated under the action of gravity. When the mixture of solid residue and dissolved liquid flows in the base pipeline 1 to be discharged to the sedimentation tank, the mixture flows through the annular cone channel formed by the cone slope 201 and the end slope 8 for the circulation of the mixture, wherein the cross-sectional size of the annular cone channel is smaller than the cross-sectional size of the inner ring mounting seat 3 and the base pipeline 1, and then under the Venturi effect, when the fluid passes through the annular cone channel, its flow velocity increases, and according to the Bernoulli effect, when the flow velocity increases, the pressure at its location decreases, thereby forming a low-pressure area.

[0052] At the same time, there are multiple groups of micro-diameter channels 10 communicating with the gas in the annular channel, and the multiple groups of micro-diameter channels 10 are all communicating with the gas between the annular channel 11, and the micro-diameter channels 10 are communicating with the gas between the flow seat 20 in the cavity. When the mixture flows through the annular channel, the low pressure phenomenon caused by the increase in flow velocity is alleviated by the multiple groups of micro-diameter channels 10, thereby prompting the flocculant in the box to pass through the flow seat 20 in the cavity, the return spring 22 and the multiple groups of micro-diameter channels 10 in turn into the annular channel, so that the flocculant is mixed with the mixture in the annular channel.

[0053] At the same time, the mixture and the flocculant continue to flow in the base pipeline 1, which can enable the flocculant to be quickly dispersed in the mixture. Therefore, through the Venturi effect and the Bernoulli effect, the flocculant can be automatically sucked into the base pipeline 1 from the water tank without manual addition, reducing the complexity and labor intensity of manual operation, and eliminating the need for additional stirring equipment to ensure that the flocculant and the mixture are fully mixed, thereby reducing the complexity and maintenance cost of the equipment.

[0054] It should be noted that when the flow rate of the mixture medium in the base-toward pipe 1 increases, under the Bernoulli effect, the flow rate of the mixture at the annular cone channel further increases, thereby increasing the amount of mixture flowing through the annular cone channel per unit time. The number of meshes of the micro-diameter channel 10 passing through the annular cone channel is changed by the runoff variable component, so that when the flow rate of the mixture in the base-toward pipe 1 increases, the amount of flocculant added into the annular cone channel per unit time can be adaptively adjusted to ensure that when the flow rate of the mixture increases per unit time, the amount of flocculant added can be adaptively increased, thereby ensuring that the amount of flocculant added can meet the purpose of sedimentation of solid residues, thereby ensuring the subsequent separation and recovery efficiency of the eluate and solid residues.

[0055] In one of the more preferred embodiments, a branch liquid outlet pipe 19 is fixedly connected to the base pipe 1 and is in gas communication with the annular channel 11, and one end of the branch liquid outlet pipe 19 away from the base pipe 1 is fixedly passed through the flow seat 20 in the cavity;

[0056] A metal spring 21 is fixedly secured to the inner wall of the cavity flow seat 20, and a return spring 22 is fixedly connected to the upper surface of the metal spring 21, with one end of the return spring 22 away from the metal spring 21 being fixedly connected to the cavity flow seat 20;

[0057] The metal spring 21 separates the internal space of the flow seat 20 in the cavity and is divided into a sealed upper chamber and a lower chamber from top to bottom. The upper chamber is in gas communication with the branch liquid outlet pipe 19.

[0058] The base pipe 1 includes an integrally formed bend portion 101, and the air extraction assembly includes multiple groups of air blocking nets fixedly connected to the inner wall of the bend portion 101. A secondary air inlet pipe 25 is fixedly passed through the highest horizontal point of the bend portion 101. The end of the secondary air inlet pipe 25 away from the bend portion 101 is fixedly passed through the flow seat 20 in the cavity and is in gas communication with the lower chamber.

[0059] A pressure column 23 is fixedly connected to the lower surface of the metal spring 21, and an air pressure plate 24 is fixedly connected to the pressure column 23, and the outer peripheral surface of the air pressure plate 24 is in sliding contact with the inner wall of the lower chamber. A secondary air outlet pipe 26 that communicates with the gas between the lower chamber is fixedly passed through the flow seat 20 in the cavity, and a volume component that drives the upper chamber to restore its initial capacity is provided on the flow seat 20 in the cavity.

[0060] like Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, when the mixture medium flows through the annular cone channel, the flow rate increases and a low pressure phenomenon is generated. At this time, the flocculant in the upper chamber can compensate for the low pressure phenomenon, thereby enabling the flocculant in the upper chamber to enter the annular channel 11 through the branch outlet pipe 19, and enter the annular cone channel through multiple groups of micro-diameter channels 10 to mix with the mixture in the base pipe 1.

[0061] At the same time, multiple groups of gas-blocking nets are set at the bend 101, and there may be bubbles in the mixture. When the mixture flows through the gas-blocking nets, the turbulence of the mixture can be increased, making it easier for gas bubbles to separate from the mixture, thereby promoting gas-liquid separation, and the gas escaping from the mixture will be concentrated at the highest level of the bend 101.

[0062] At the same time, as the flocculant in the upper chamber gradually flows into the annular cone channel, the metal spring 21 is elastically deformed upward, thereby driving the pressure column 23 and the air pressure plate 24 to move upward in the lower chamber. The lower chamber is connected to the gas of the bend 101 through the secondary air inlet pipe 25, and when the air pressure plate 24 moves upward, the gas in the bend 101 can be sucked through the secondary air inlet pipe 25.

[0063] It should be noted that, subsequently, driven by the volume component, the upper chamber can be prompted to restore its initial capacity, thereby driving the metal spring 21 to restore its initial deformation, and in the process of the metal spring 21 restoring its deformation, driving the pressure column 23 and the air pressure plate 24 to move downward, thereby driving the gas in the lower chamber to be discharged through the secondary air outlet pipe 26 into a container that is in gas communication with the secondary air outlet pipe 26.

[0064] Among them, the secondary air inlet pipe 25 and the secondary air outlet pipe 26 are respectively fixedly connected with a one-way valve, and the valve opening directions of the two sets of one-way valves are opposite. Then, when the mixture flows through the annular cone channel to promote the flocculant in the upper chamber to flow into the annular cone channel, the gas in the bending part 101 can be absorbed through the movement process of the pressure column 23 and the air pressure plate 24, and subsequently, under the drive of the volume component, the gas can be discharged into the external container, and a one-way valve for limiting the flow direction of the flocculant is also provided on the branch liquid outlet pipe 19. The one-way valve is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure. By setting multiple sets of one-way valves, the flow direction of the gas and flocculant can be restricted, so that the gas can only enter the lower chamber through the secondary air inlet pipe 25, and enter the external container through the lower chamber, and simultaneously restrict the flow direction of the flocculant, so that the flocculant can only flow from the upper chamber to the annular cone channel through the branch liquid outlet pipe 19.

[0065] It should be noted that during actual use, if the amount of gas in the mixture is small, the metal dome 21 will deform upward, which will prompt a small amount of the mixture to enter the lower chamber, and eventually enter the external container through the secondary air outlet pipe 26. When the bubbles carried in the mixture are reduced, the small amount of mixture sucked in can be driven into the sedimentation tank through a pump body and other devices.

[0066] Based on the embodiment of the air extraction assembly, the volume assembly includes a hollow frame 28 fixedly connected to the flow seat 20 in the cavity, and the hollow frame 28 is in gas communication with the box body and the upper chamber. The hollow frame 28 is provided with an inner sealing block 29 that can move freely in the vertical direction, and the side wall of the inner sealing block 29 is in sliding contact with the inner wall of the hollow frame 28;

[0067] The bottom of the inner sealing block 29 is fixedly connected to a turning column 27, and one end of the turning column 27 away from the inner sealing block 29 is fixedly connected to the pressure column 23. A rectangular groove for the turning column 27 to slide through is opened on the flow seat 20 in the cavity;

[0068] A branch liquid inlet pipe 31 communicating with the gas between the upper chamber is fixedly passed through the flow seat 20 in the cavity. The end of the branch liquid inlet pipe 31 away from the flow seat 20 in the cavity is fixedly passed through the hollow frame 28. The inner sealing block 29 is provided with an air return hole 30 corresponding to the position of the branch liquid inlet pipe 31; the inner sealing block 29 blocks the branch liquid inlet pipe 31 in the initial state.

[0069] like Figure 1 、 Figure 7 and Figure 8 As shown, when the inner sealing block 29 blocks the branch liquid inlet pipe 31, as the mixture flows in the annular cone channel, the flocculant in the upper chamber enters the annular cone channel through the branch liquid outlet pipe 19, thereby causing the metal spring 21 to deform upward and drive the return spring 22 to undergo compression deformation.

[0070] At the same time, the pressure column 23 and the air pressure plate 24 move upward with the deformation process of the metal spring 21, so as to prompt the gas in the bending part 101 to enter the lower chamber through the secondary air inlet pipe 25, wherein the pressure column 23 is fixedly connected to the inner sealing block 29 through the turning column 27. When the pressure column 23 moves upward with the deformation of the metal spring 21, it can drive the inner sealing block 29 to move upward through the turning column 27, and then after the metal spring 21 is deformed upward, the return air hole 30 is prompted to communicate with the branch liquid inlet pipe 31. At this time, the upper chamber is connected with the box body through the branch liquid inlet pipe 31 and the return air hole 30, and then the return spring 22 can restore the deformation at this time, which will prompt the metal spring 21 to restore the deformation as well, and in the process of the two restoring their deformation, the flocculant in the box body is prompted to enter the upper chamber, so as to achieve the purpose of restoring the volume of the upper chamber.

[0071] At the same time, the pressure column 23 and the air pressure plate 24 move downward as the metal spring 21 recovers its deformation, thereby causing the gas in the lower chamber to be discharged into the external container, and causing the return air hole 30 to move downward with the pressure column 23, so as to block the branch liquid inlet pipe 31 again through the inner sealing block 29, and then when the subsequent mixture flows through the annular cone channel, it can cause the metal spring 21 to deform again to suck the gas at the bend 101.

[0072] Based on the volume component embodiment, the flow variable component includes a middle sealing ring 7 arranged inside the base pipe 1, the middle sealing ring 7 is in sliding contact with the end bevel 8 and the inner wall of the base pipe 1, and a fan-shaped isotropic plate 17 is fixedly connected to the middle sealing ring 7. The base pipe 1 is provided with a groove body 1 for the fan-shaped isotropic plate 17 to slide through;

[0073] The outer peripheral surface of the base pipe 1 is fixedly connected to an outer ring frame 12, and the sector-shaped alignment plate 17 is located inside the outer ring frame 12 and is free to rotate in the horizontal direction;

[0074] The middle sealing ring 7 is provided with a notch groove 9 , and the middle sealing ring 7 blocks part of the micro-diameter channel 10 in the initial state.

[0075] A hollow ring 4 is fixedly connected to the inner wall of the base pipeline 1, and the opposite surfaces of the hollow ring 4 and the conical sealing seat 2 are fixedly connected with directional pins 5. The outer circumferential surfaces of the two groups of directional pins 5 are sleeved with give-way springs 6, and the two ends of the give-way springs 6 are respectively fixedly connected to the conical sealing seat 2 and the hollow ring 4; the inner wall of the base pipeline 1 is rotated on a fixed axis, and a transverse pressure rod 14 is provided at one end of the fan-shaped liquid-blocking plate 13 facing the outer ring frame 12, and a groove body 2 for the transverse pressure rod 14 to slide through is opened on the base pipeline 1.

[0076] The end of the transverse pressure rod 14 facing the fan-shaped liquid-blocking plate 13 is fixedly rotated with a sliding block 15, and the fan-shaped liquid-blocking plate 13 is provided with a groove body three for the sliding block 15 to be slidably connected; the end of the transverse pressure rod 14 away from the fan-shaped liquid-blocking plate 13 is fixedly connected to a limit pin 16, and the fan-shaped iso-position plate 17 is provided with an arc-shaped limit groove 18 for the limit pin 16 to be slidably connected. A connecting sleeve 32 is fixedly sleeved on the base pipeline 1, and the end of the connecting sleeve 32 away from the base pipeline 1 is fixedly sleeved on the flow seat 20 in the cavity.

[0077] like Figures 1-6 As shown, when the mixture flows in the base pipeline 1, the mixture pushes the conical sealing seat 2 to cause the yield spring 6 to undergo compression deformation, thereby causing the conical inclined surface 201 and the end inclined surface 8 to correspond to each other, so that the space between the conical inclined surface 201 and the end inclined surface 8 forms an annular cone channel for the mixture to flow.

[0078] When the flow rate of the mixture in the base direction pipe 1 increases, that is, the amount of the mixture flowing through the base direction pipe 1 per unit time increases, thereby providing an amount of flocculant added to the mixture. At this time, the fan-shaped liquid blocking plate 13 rotates on the inner wall of the base direction pipe 1 on a fixed axis, and the base direction pipe 1 is provided with a torsion spring that drives the fan-shaped liquid blocking plate 13 to restore the initial deflection position. The torsion spring is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure. Furthermore, when the flow rate of the mixture in the base direction pipe 1 increases, the driving force exerted by the mixture on the fan-shaped liquid blocking plate 13 increases, thereby driving the fan-shaped liquid blocking plate 13 to further deflect.

[0079] At the same time, when the fan-shaped liquid-blocking plate 13 is deflected, it can push the transverse pressure rod 14 to move horizontally through the sliding block 15, and the end of the transverse pressure rod 14 is fixedly provided on the limit pin 16 and is slidably connected to the fan-shaped isotropic plate 17 through the arc-shaped limit groove 18. Therefore, when the horizontal position of the transverse pressure rod 14 changes, the fan-shaped isotropic plate 17 can be driven to rotate a certain angle in the horizontal direction. Among them, the fan-shaped isotropic plate 17 is fixedly connected to the middle sealing ring 7, and while driving the middle sealing ring 7 to rotate, the position of the notch groove 9 can be changed, thereby prompting the micro-diameter channel 10 blocked by the middle sealing ring 7 to correspond to the notch groove 9, thereby increasing the number of holes of the micro-diameter channel 10 communicating with the annular cone channel.

[0080] It should be noted that when the flow rate of the mixture medium in the base-to-base pipe 1 increases, the flow rate of the mixture at the annular cone channel will also increase further, but there is a nonlinear relationship between flow rate and pressure. When the flow rate increases, the pressure reduction is not linear. Therefore, even if the flow rate is doubled, the pressure reduction at the closing part may not increase completely in a linear relationship. At the same time, there is also a nonlinear relationship between the flow rate and the pressure difference of the micro-diameter tube. According to Torricelli's law, the flow rate is proportional to the square root of the pressure difference. Therefore, even if the pressure at the annular cone channel decreases, the increase in flow at the micro-diameter channel 10 will not increase completely in a linear relationship, and in actual use, there are various resistance factors, such as the inlet resistance and flow resistance of the medium, etc. These resistance factors will affect the amount of flocculant added.

[0081] Therefore, when the flow rate of the mixed medium in the base-to-base pipeline 1 increases, the number of holes of the micro-diameter channel 10 at the annular cone channel is increased to accelerate the speed at which the flocculants in the upper chamber enter the annular cone channel, thereby shortening the time of a single cycle from the deformation of the metal spring 21 to the recovery of the deformation, thereby ensuring the effective concentration of the flocculant in the mixture, avoiding the problem of insufficient flocculant addition due to the increase in flow rate, and ensuring the stability of the subsequent separation and recovery process between the dissolution liquid and the solid residue, so as to improve the separation and recovery efficiency.

[0082] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pipelined dissolution multiphase flow high-efficiency separation and recovery device, comprising a sedimentation tank for settling solid residue and dissolution liquid, and a base pipeline (1) provided on a tank body for circulating a mixture composed of the solid residue and the dissolution liquid, and also comprising a box body for receiving a flocculant, characterized in that: The base-direction pipe (1) is provided with a mixing flow mechanism for driving the flocculant and the mixture in the box to flow synchronously into the sedimentation tank; The flow mixing mechanism comprises an inner ring mounting seat (3) fixedly connected to the inner wall of the base pipe (1); a conical sealing seat (2) coaxial with the inner ring mounting seat (3) is provided on the base pipe (1); the conical sealing seat (2) comprises an integrally formed conical inclined surface (201); and the inner ring mounting seat (3) comprises an integrally formed end inclined surface (8) at a position corresponding to the conical inclined surface (201); the conical inclined surface (201) and the end inclined surface (8) together constitute an annular conical channel for the mixture to flow; The inner ring mounting seat (3) is provided with a plurality of micro-diameter channels (10) in gas communication with the annular cone channel, and the inner ring mounting seat (3) is further provided with an annular channel (11) in gas communication with the plurality of micro-diameter channels (10); The base-direction pipeline (1) is provided with a cavity mid-flow seat (20), and the cavity mid-flow seat (20) is provided with an exhaust component for negatively sucking and discharging gas in the base-direction pipeline (1); The base-direction pipeline (1) is also provided with a flow variable component for adjusting the number of meshes of the micro-diameter channel (10) communicating with the annular cone channel according to the flow rate of the mixture in the base-direction pipeline (1).

2. The pipelined dissolution multiphase flow high-efficiency separation and recovery device according to claim 1 is characterized in that: A branch liquid outlet pipe (19) in gas communication with the annular channel (11) is fixedly connected to the base pipe (1), and one end of the branch liquid outlet pipe (19) away from the base pipe (1) is fixedly passed through the flow seat (20) in the cavity; A metal spring (21) is fixedly connected to the inner wall of the cavity flow seat (20), a return spring (22) is fixedly connected to the upper surface of the metal spring (21), and one end of the return spring (22) away from the metal spring (21) is fixedly connected to the cavity flow seat (20); The metal spring (21) separates the internal space of the flow seat (20) in the cavity and is divided into a sealed upper chamber and a lower chamber from top to bottom, and the upper chamber is in gas communication with the branch liquid outlet pipe (19); The flow seat (20) in the cavity is in gas communication with the annular hole (11) and the box body.

3. The pipelined dissolution multiphase flow high-efficiency separation and recovery device according to claim 2 is characterized in that: The base pipe (1) includes an integrally formed bend portion (101), the air extraction assembly includes a plurality of gas blocking nets fixedly connected to the inner wall of the bend portion (101), and a secondary air inlet pipe (25) is fixedly passed through the highest horizontal position of the bend portion (101), and one end of the secondary air inlet pipe (25) away from the bend portion (101) is fixedly passed through the flow seat (20) in the cavity and is in gas communication with the lower chamber; The lower surface of the metal spring (21) is fixedly connected to a pressure column (23), and the pressure column (23) is fixedly connected to a pressure plate (24), and the outer peripheral surface of the pressure plate (24) is in sliding contact with the inner wall of the lower chamber; A secondary gas outlet pipe (26) is fixedly passed through the flow seat (20) in the cavity and is in gas communication with the lower chamber; A volume component for driving the upper chamber to restore its initial capacity is provided on the flow seat (20) in the cavity.

4. The pipelined dissolution multiphase flow high-efficiency separation and recovery device according to claim 3 is characterized in that: The volume assembly includes a hollow frame (28) fixedly connected to the flow seat (20) in the cavity, and the hollow frame (28) is in gas communication with the box body and the upper chamber. The hollow frame (28) is provided with an inner sealing block (29) that can move freely in the vertical direction, and the side wall of the inner sealing block (29) is in sliding contact with the inner wall of the hollow frame (28); The bottom of the inner sealing block (29) is fixedly connected to a turning column (27), one end of the turning column (27) away from the inner sealing block (29) is fixedly connected to the pressure column (23), and a rectangular groove for the turning column (27) to slide through is opened on the flow seat (20) in the cavity; A branch liquid inlet pipe (31) communicating with the gas between the upper chamber is fixedly passed through the cavity flow seat (20); one end of the branch liquid inlet pipe (31) away from the cavity flow seat (20) is fixedly passed through the hollow frame (28); and an air return hole (30) is opened on the inner sealing block (29) at a position corresponding to the branch liquid inlet pipe (31).

5. The pipelined dissolution multiphase flow high-efficiency separation and recovery device according to claim 4 is characterized in that: The inner sealing block (29) blocks the branch liquid inlet pipe (31) in the initial state.

6. The pipelined dissolution multiphase flow high-efficiency separation and recovery device according to claim 1 is characterized in that: The flow variable component comprises a middle sealing ring (7) arranged inside the base pipe (1), the middle sealing ring (7) being in sliding contact with the end inclined surface (8) and the inner wall of the base pipe (1), a fan-shaped isotropic plate (17) being fixedly connected to the middle sealing ring (7), and a groove body for the fan-shaped isotropic plate (17) to slide through is provided on the base pipe (1); The outer peripheral surface of the base pipe (1) is fixedly connected to an outer ring frame (12), and the sector-shaped alignment plate (17) is located inside the outer ring frame (12) and is freely rotatable in the horizontal direction; The middle sealing ring (7) is provided with a notch groove (9), and the middle sealing ring (7) blocks part of the micro-diameter pore (10) in the initial state.

7. The pipelined dissolution multiphase flow high-efficiency separation and recovery device according to claim 3, characterized in that: A hollow ring (4) is fixedly connected to the inner wall of the base pipe (1), and directional pins (5) are fixedly connected to the opposite surfaces of the hollow ring (4) and the conical sealing seat (2). The outer peripheral surfaces of the two groups of directional pins (5) are sleeved with a relief spring (6), and the two ends of the relief spring (6) are respectively fixedly connected to the conical sealing seat (2) and the hollow ring (4); The inner wall of the base-direction pipeline (1) is provided with a plurality of fan-shaped liquid-blocking plates (13) which rotate along a fixed axis. One end of the fan-shaped liquid-blocking plates (13) facing the outer ring frame (12) is provided with a transverse pressure rod (14). The base-direction pipeline (1) is provided with a second groove body for the transverse pressure rod (14) to slide through. The transverse pressure rod (14) is provided with a sliding block (15) which is fixedly rotated toward one end of the fan-shaped liquid blocking plate (13), and a slot body three for sliding connection of the sliding block (15) is provided on the fan-shaped liquid blocking plate (13); One end of the transverse pressure rod (14) away from the fan-shaped liquid-blocking plate (13) is fixedly connected to a limit pin (16), and an arc-shaped limit groove (18) for sliding connection of the limit pin (16) is provided on the fan-shaped alignment plate (17).

8. The pipelined dissolution multiphase flow high-efficiency separation and recovery device according to claim 1 is characterized in that: A connecting sleeve (32) is fixedly sleeved on the base-direction pipeline (1), and one end of the connecting sleeve (32) away from the base-direction pipeline (1) is fixedly sleeved on the flow seat (20) in the cavity.

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