Solid-liquid separation fluidized bed

Abstract

The application relates to the technical field of solid-liquid separation, in particular to a solid-liquid separation fluidized bed. The solid-liquid separation fluidized bed comprises an outer cylinder, an inner cylinder coaxially arranged in the outer cylinder, a water guide shell communicated with the bottom of the inner cylinder, a water inlet pipe communicated with the bottom of the water guide shell, a stirring piece rotationally connected to the top of the outer cylinder and coaxially arranged in the inner cylinder, a first turbine fixedly connected to the bottom end of the stirring piece, a connecting rod fixedly connected to the bottom side of the first turbine, a fixing ring fixedly connected to the bottom of the connecting rod, a connecting column rotationally connected to the fixing ring, a second turbine fixedly connected to the bottom end of the connecting column, and a sludge discharging assembly arranged on the outer wall of the inner cylinder. The second turbine is used for assisting the rotation of the first turbine, the driving force during the rotation of the stirring piece is improved, the rotation resistance of the stirring piece caused by the accumulation of precipitates is avoided, the rotation speed of the stirring piece is reduced, and the mixing efficiency of the water to be treated and the medicament is reduced.

Description

Technical Field

[0001] This invention relates to the field of solid-liquid separation technology, and more particularly to a solid-liquid separation fluidized bed. Background Technology

[0002] In water treatment, the conventional method is to add chemicals to the water and mix the chemicals and water in a solid-liquid separation fluidized bed, so that the impurities in the water will precipitate, and then the precipitate will be separated from the water to complete the water treatment.

[0003] Patent CN115304141B discloses a non-powered, high-efficiency solid-liquid separation device, including an outer cylinder, an inner cylinder, a stirring mechanism, and a drive turbine. The outer cylinder is vertically positioned, with a sedimentation zone at the bottom, an installation zone in the middle, and a water outlet zone at the top. The inner cylinder is coaxially located within the installation zone, with an inlet at the bottom connecting to an external water source and the top connecting to the water outlet zone. A settling gap is formed between the inner and outer cylinder walls, connecting the water outlet zone and the sedimentation zone. The stirring mechanism is coaxially located within the inner cylinder. The drive turbine is mounted on the rotating shaft of the stirring mechanism and faces the inlet to drive the stirring mechanism to rotate. The drive turbine slides axially with the rotating shaft of the stirring mechanism to approach or move away from the inlet. Water flows in from the inlet, driving the drive turbine and thus the stirring mechanism. The entire device requires no external power, has low energy consumption, and is easy to install and maintain. The rotational speed of the stirring mechanism can be adjusted by sliding the drive turbine axially.

[0004] Although the aforementioned patent can drive the turbine to agitate the stirring mechanism through water impact, the partially agglomerated sediment formed in the inner cylinder will sink and accumulate at the bottom of the inner cylinder due to factors such as volume and density. This increases the resistance encountered when the stirring mechanism rotates, and the settled sediment will also hinder the rotation of the turbine, thereby reducing the working efficiency of the stirring mechanism and resulting in insufficient mixing between water and reagents. Summary of the Invention

[0005] To overcome the shortcomings mentioned in the background art, the present invention provides a solid-liquid separation fluidized bed.

[0006] Technical solution: Solid-liquid separation fluidized bed, including:

[0007] outer cylinder;

[0008] An inner cylinder is coaxially disposed inside the outer cylinder, and the inner cylinder is provided with multiple through holes of equal height for discharging internal sediments.

[0009] A water guide shell is connected to the bottom of the inner cylinder, and a water inlet pipe is connected to the bottom of the water guide shell, which penetrates the outer cylinder.

[0010] A stirring component is rotatably connected to the top of the outer cylinder and coaxially disposed inside the inner cylinder. A first turbine is fixedly connected to the bottom end of the stirring component, and the first turbine is coaxially disposed inside the water guide shell.

[0011] A connecting rod is fixed to the bottom side of the first turbine. A cavity is provided inside the connecting rod. A fixing ring is fixed to the bottom of the connecting rod. A connecting column is rotatably connected to the fixing ring. A rotating disk is rotatably connected to the cavity of the connecting rod and fixed to the top of the connecting column. A torsion spring is fixed between the fixing ring and the rotating disk. A second turbine is fixed to the bottom end of the connecting column. The second turbine rotates under the impact of the water to be treated to assist the rotation of the first turbine.

[0012] The sludge discharge assembly is installed on the outer wall of the inner cylinder to seal the through holes of the inner cylinder and to periodically discharge the residual sediment inside.

[0013] Furthermore, a gap is provided between the inner cylinder and the outer cylinder to form a sedimentation channel for the precipitate.

[0014] Furthermore, the water guide shell is configured as a gourd shape, with a constricted structure in the middle and lower parts, and the diameters of the middle and lower parts of the water guide shell are the same, in order to ensure that the water to be treated flows at the same speed when passing through the middle and lower parts of the water guide shell.

[0015] Furthermore, the second turbine is coaxially disposed inside the water guide shell, and the distance between the first turbine and the middle constriction structure of the water guide shell is the same as the distance between the second turbine and the lower constriction structure of the water guide shell, so as to ensure that the first turbine and the second turbine are subjected to the same impact force from the water to be treated.

[0016] Furthermore, the sludge removal assembly includes:

[0017] A sealing ring is slidably connected to the outer wall of the inner cylinder. The sealing ring is used to seal the through hole of the inner cylinder. At least two fixing seats are fixed to the outer wall of the inner cylinder. The fixing seats are slidably connected to a slide rod whose bottom end is fixed to the sealing ring.

[0018] The slide rod is slidably connected to a slide plate, and a tension spring is fixedly connected between the slide plate and the sealing ring;

[0019] A drive component, disposed between the connecting rod and the connecting column, is used to change the position of the sealing ring according to the difference in rotational speed between the first turbine and the second turbine, thereby releasing the through hole of the inner cylinder.

[0020] Furthermore, there is frictional damping between the slide rod and the fixed base to reduce the moving speed of the slide rod.

[0021] Furthermore, the driving component includes:

[0022] The spline rod is coaxially disposed in the cavity of the connecting rod. The connecting column is provided with a spline blind hole. The bottom of the spline rod is provided with a spline. The spline at the bottom of the spline rod is limited to slide in the spline blind hole of the connecting column. The top of the spline rod is provided with at least two helical guide grooves.

[0023] The number of limiting posts is the same as the number of spiral guide grooves on the spline rod, and they are fixed to the inner wall of the cavity of the connecting rod. The limiting posts and the spiral guide grooves are in a limiting sliding fit.

[0024] The first telescopic rod is fixedly connected to the cavity of the connecting rod. The telescopic end of the first telescopic rod is rotatably connected to the spline rod. The first telescopic rod is filled with hydraulic oil. A connecting ring is fixedly connected to the outside of the stirring component. An oil guide pipe is connected between the first telescopic rod and the connecting ring. The fixed base is fixedly connected to the second telescopic rod. The telescopic end of the second telescopic rod is fixedly connected to the sliding plate. An oil guide pipe is connected between the second telescopic rod and the connecting ring.

[0025] Furthermore, the connecting ring is configured as an inner ring and an outer ring, with an oil storage cavity provided between the inner and outer rings. The inner ring of the connecting ring is fixedly connected to the stirring element, and the outer ring of the connecting ring is rotatably and sealed to the inner ring.

[0026] Furthermore, it also includes:

[0027] The first fixing post is fixed to the bottom of the second turbine. The first fixing post is coaxially arranged inside the water guide shell. The diameter of the first fixing post is the same as the diameter of the connecting rod, so as to ensure that the flow area in the middle and lower part of the water guide shell is the same.

[0028] Furthermore, it also includes:

[0029] A plurality of limiting rods are provided, and the plurality of limiting rods are slidably connected to adjacent fixed seats. The sliding rod is provided with a limiting blind hole. One end of the limiting rod is located in the limiting blind hole of the sliding rod. The limiting rod is used to limit the sliding rod. An elastic element for resetting is installed between the limiting rod and the fixed seat. The other end of the limiting rod is fixedly connected to a second fixed post.

[0030] The extrusion plate is provided in a plurality of them, and the plurality of extrusion plates are respectively fixed to adjacent sliding plates. The extrusion plate is provided with an inclined surface, which is in extrusion engagement with the second fixed column.

[0031] The beneficial effects of the present invention are: 1. The present invention utilizes the second turbine to assist the first turbine in rotating, thereby increasing the driving force when the agitator rotates, avoiding the increase in the rotational resistance of the agitator caused by the accumulation of sediment, which would reduce the rotational speed of the agitator and lead to a decrease in the mixing efficiency of the water to be treated and the reagent.

[0032] 2. This invention drives the first and second turbines to rotate through the flow of water, thereby driving the agitator to mix the water to be treated and the reagent in the water guide shell, and completes the sedimentation treatment of the precipitate through this device. The device does not require power or external energy, thus reducing the energy consumption of the device.

[0033] 3. The present invention utilizes the angular difference between the first turbine and the second turbine to release the seal of the sealing ring on the inner cylinder through hole, thereby allowing the sediment in the inner cylinder to be discharged through the through hole, reducing the impact of the sediment on the stirring component and the rotation of the first turbine.

[0034] 4. This invention uses a limiting rod to limit the sliding rod, avoiding the instability of the rotation of the stirring component and the first turbine due to the influence of sediment, which would cause the tension spring to be stretched repeatedly, resulting in the sealing ring sliding up and down repeatedly, thereby improving the continuity and stability of the device during use. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0036] Figure 2 This is a cross-sectional perspective view of the three-dimensional structure of the outer cylinder of the present invention;

[0037] Figure 3 This is a cross-sectional three-dimensional structural diagram of the inner cylinder and water-guiding shell of the present invention;

[0038] Figure 4 This is a cross-sectional three-dimensional structural diagram of the water-guiding shell of the present invention;

[0039] Figure 5 This is a cross-sectional perspective view of the connecting rod of the present invention.

[0040] Figure 6 This is a cross-sectional perspective view of the three-dimensional structure of the connecting column and rotating disk of the present invention;

[0041] Figure 7 This is a three-dimensional structural diagram of the fixing seat and sealing ring and other parts of the present invention;

[0042] Figure 8 This is a three-dimensional structural diagram of the sliding plate and pressing plate and other parts of the present invention.

[0043] The markings in the attached diagram are as follows: 1: Outer cylinder, 2: Inner cylinder, 3: Water guide shell, 4: Water inlet pipe, 5: Agitator, 6: First turbine, 7: Connecting rod, 8: Fixing ring, 9: Connecting column, 10: Rotating disk, 11: Torsion spring, 12: Second turbine, 121: First fixing column, 13: Sealing ring, 131: Fixing seat, 132: Slide rod, 14: Sliding plate, 15: Tension spring, 16: Spline rod, 17: Limiting column, 18: First telescopic rod, 19: Connecting ring, 20: Second telescopic rod, 21: Limiting rod, 22: Second fixing column, 23: Extrusion plate. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0045] Example 1: Solid-liquid separation fluidized bed, refer to Figures 1-4The system includes: an outer cylinder 1; an inner cylinder 2, coaxially arranged inside the outer cylinder 1, with a gap between the inner cylinder 2 and the outer cylinder 1 to form a sedimentation channel for the sediment; the inner cylinder 2 has multiple through holes of equal height for discharging the sediment inside; a water guide shell 3, connected to the bottom of the inner cylinder 2, used to guide the water to be treated; the water guide shell 3 is gourd-shaped, with a constricted structure in the middle and lower parts, and the diameters of the middle and lower parts of the water guide shell 3 are the same to ensure that the water to be treated flows at the same speed when passing through the middle and lower parts of the water guide shell 3; a water inlet pipe 4 is connected to the bottom of the water guide shell 3, the water inlet pipe 4 passes through the outer cylinder 1, and is connected to an external water source; a stirring element 5, rotatably connected to the top of the outer cylinder 1 and coaxially arranged inside the inner cylinder 2; a first turbine 6 fixedly connected to the bottom end of the stirring element 5, the first turbine 6 being coaxially arranged inside the water guide shell 3; and a connecting rod 7, fixedly connected to the bottom side of the first turbine 6, with a cavity inside the connecting rod 7. A fixing ring 8 is fixedly connected to the bottom, and a connecting column 9 is rotatably connected to the fixing ring 8. A rotating disk 10, which is fixedly connected to the top of the connecting column 9, is rotatably connected to the cavity of the connecting rod 7. A torsion spring 11 is fixedly connected between the fixing ring 8 and the rotating disk 10. A second turbine 12 is fixedly connected to the bottom end of the connecting column 9. The second turbine 12 rotates under the impact of the water to be treated to assist the rotation of the first turbine 6. The second turbine 12 is coaxially arranged inside the water guide shell 3. The distance between the first turbine 6 and the middle constriction structure of the water guide shell 3 is the same as the distance between the second turbine 12 and the lower constriction structure of the water guide shell 3. This is to ensure that the first turbine 6 and the second turbine 12 are subjected to the same impact force from the water to be treated. A sludge discharge assembly is set on the outer wall of the inner cylinder 2 to seal the through hole of the inner cylinder 2 and to discharge the residual sediment inside at regular intervals. The difference in rotational resistance between the first turbine 6 and the second turbine 12 when impacted by the water to be treated is used to control the sludge discharge assembly to treat the sediment inside the inner cylinder 2.

[0046] In the above scheme, the main purpose is to use water as the driving force to mix the water to be treated and the reagents, primarily to save energy and thus reduce the cost of water treatment. The outer cylinder 1 is a closed shell, and a manhole is provided at the top of the outer cylinder 1 for easy observation of the interior and for later maintenance. The outer cylinder 1 is fixed to a support frame to ensure it is vertical. The bottom of the outer cylinder 1 is a settling zone, and the top is a effluent zone. The settling zone of the outer cylinder 1 is connected to a drain pipe equipped with a valve, and the effluent zone is connected to a drain pipe equipped with a valve. The inner cylinder 2 is fixed to the inner wall of the outer cylinder 1 via a mounting frame. The inner cylinder 2 and outer cylinder 1 are coaxially arranged to enhance structural stability. A settling gap is formed between the inner cylinder 2 and outer cylinder 1. The upper part of the inner cylinder 2 is connected to the outlet area of ​​the outer cylinder 1, and the diameter of the inner cylinder 2 gradually decreases from top to bottom to reduce disturbance to the sediment. The inner cylinder 2 is provided with circumferentially spaced through holes of the same height. The through holes of the inner cylinder 2 are used to discharge the sediment accumulated in the inner cylinder 2 into the settling area of ​​the outer cylinder 1. The water guide shell 3 is connected to the lower part of the inner cylinder 2, and the lower end of the water guide shell 3 is connected to the water inlet pipe 4. The water inlet pipe 4 passes through the outer cylinder 1 and is connected to an external water source. The water to be treated flows into the inner cylinder 2 through the water inlet pipe 4 and the water guide shell 3. The water to be treated is mixed with the reagent and forms a sediment in the inner cylinder 2. The agitator 5 mainly comprises a rotating rod and stirring rods. The rotating rod of the agitator 5 is rotatably connected to the top of the outer cylinder 1. Several stirring rods are spaced apart on the rotating rod of the agitator 5. The specific number, distribution, and shape of the stirring rods can be modified according to actual needs to form multiple mixing layers. The agitator 5 is used to accelerate the mixing efficiency of the reagent and the water to be treated. The first turbine 6 is fixed to the lower end of the rotating rod of the agitator 5. The first turbine 6 rotates after being impacted by water. The first turbine 6 drives the agitator 5 to rotate synchronously. The agitator 5 is used to mix the water to be treated and the reagent in the inner cylinder 2. The connecting rod 7 is fixed to the lower side of the first turbine 6 and is coaxial with the rotating rod of the agitator 5. The system is configured such that when the water to be treated flows upward along the water guide shell 3, it simultaneously impacts the rotation of the first turbine 6 and the second turbine 12. The second turbine 12 is facilitated by the rotation of the connecting rod 7 with the assistance of the rotating disk 10 and the torsion spring 11, thereby realizing the synchronous rotation of the agitator 5 by the water using the first turbine 6 and the second turbine 12. The sludge discharge assembly is set between the outer cylinder 1 and the inner cylinder 2. The sludge discharge assembly is used to block the through hole of the inner cylinder 2, so that the sediment moves upward along the inner cylinder 2 under the drive of the water flow. By using the difference in the relative rotation of the first turbine 6 and the second turbine 12, the sealing state of the sludge discharge assembly on the inner cylinder 2 is changed, thereby discharging the sediment remaining in the inner cylinder 2 into the sedimentation area of ​​the outer cylinder 1.

[0047] Workflow: As the water to be treated flows upward through the inlet pipe 4 and along the guide shell 3, it impacts the first turbine 6 and the second turbine 12, causing them to rotate. The first turbine 6 drives the agitator 5 to rotate circumferentially, thoroughly mixing the water to be treated and the reagent in the inner cylinder 2 and producing sediment. The sediment rises with the water flow in the inner cylinder 2 and reaches the drainage area of ​​the outer cylinder 1. Under the action of gravity, the sediment moves downward through the settling gap between the outer cylinder 1 and the inner cylinder 2 and finally sinks to the bottom of the outer cylinder 1. When the water impacts the second turbine 12, the second turbine 12 drives the connecting column 9 and the rotating disk 10 to rotate synchronously. The second turbine 12 cooperates with the rotating disk 10 through the torsion spring 11, driving the connecting rod 7 to rotate synchronously. The torque of the torsion spring 11 is greater than the resistance of the circumferential rotation of the agitator 5. The water in the upper drainage area of ​​the outer cylinder 1 is discharged through the drain pipe. Meanwhile, the staff opens the valve of the drain pipe at the bottom of the outer cylinder 1 at regular intervals to discharge the sediment settled at the bottom of the outer cylinder 1.

[0048] Reference Figure 5 and Figure 7 The sludge discharge assembly includes: a sealing ring 13, which is slidably connected to the outer wall of the inner cylinder 2 and is used to seal the through hole of the inner cylinder 2; at least two fixed seats 131 are fixedly connected to the outer wall of the inner cylinder 2; a sliding rod 132 with its bottom end fixed to the sealing ring 13 is slidably connected to the fixed seat 131; there is frictional damping between the sliding rod 132 and the fixed seat 131 to reduce the moving speed of the sliding rod 132; a sliding plate 14 is slidably connected to the sliding rod 132; and a tension spring 15 is fixedly connected between the sliding plate 14 and the sealing ring 13; and a driving component, which is located between the connecting rod 7 and the connecting column 9 and is used to change the position of the sealing ring 13 according to the difference in rotational speed between the first turbine 6 and the second turbine 12, thereby releasing the through hole of the inner cylinder 2.

[0049] Reference Figures 6-8The driving component includes: a spline rod 16, coaxially disposed within the cavity of the connecting rod 7; a connecting post 9 having a spline blind hole; a spline at the bottom of the spline rod 16, the spline at the bottom of the spline rod 16 sliding within the spline blind hole of the connecting post 9; and at least two helical guide grooves at the top of the spline rod 16; limiting posts 17, the number of which is the same as the helical guide grooves on the spline rod 16; the limiting posts 17 are fixed to the inner wall of the cavity of the connecting rod 7, and the limiting posts 17 slide in a limiting manner with the helical guide grooves; and a first telescopic rod 18, fixed within the cavity of the connecting rod 7. The telescopic end of the first telescopic rod 18 is rotatably connected to the spline rod 16. The first telescopic rod 18 is filled with hydraulic oil. A connecting ring 19 is fixedly connected to the outer side of the stirring component 5. An oil guide pipe is connected between the first telescopic rod 18 and the connecting ring 19. The connecting ring 19 is configured as an inner ring and an outer ring. An oil storage chamber is provided between the inner ring and the outer ring of the connecting ring 19. The inner ring of the connecting ring 19 is fixedly connected to the stirring component 5. The outer ring of the connecting ring 19 is rotatably connected to the inner ring in a sealed manner. A second telescopic rod 20 is fixedly connected to the fixed seat 131. The telescopic end of the second telescopic rod 20 is fixedly connected to the sliding plate 14. An oil guide pipe is connected between the second telescopic rod 20 and the connecting ring 19.

[0050] In the above scheme, the main purpose is to prevent the sediment in the inner cylinder 2 from gradually increasing, thereby reducing the obstruction of the agitator 5 by the sediment, and thus ensuring the rotation efficiency of the agitator 5, so as to achieve full mixing of the reagent and the water to be treated. The sealing ring 13 is slidably connected to the outer wall of the inner cylinder 2, and a limit ring is fixed to the outer wall of the inner cylinder 2. The limit ring is used to limit the lower side of the sealing ring 13. The sealing ring 13 can only slide up and down along the inner cylinder 2, and the sealing ring 13 is located at the through hole of the inner cylinder 2 and seals it. Initially, the sealing ring 13 seals the through hole of the inner cylinder 2. After the water to be treated flows into the inner cylinder 2, the water to be treated cannot overflow from the through hole of the inner cylinder 2, thereby avoiding disturbance to the sediment at the bottom of the outer cylinder 1. Two fixing seats 131 are provided. The two fixing seats 131 are symmetrically fixed to the outer wall of the inner cylinder 2. The two fixing seats 131 are located on the upper side of the through hole of the inner cylinder 2. The tension spring 15 between the sliding plate 14 and the sealing ring 13 is... The outer side of the adjacent slide rod 132 is fitted with two spiral guide grooves with the same spiral direction on the outer side of the upper part of the spline rod 16. Two symmetrical limiting posts 17 are fixed in the cavity of the connecting rod 7. The two limiting posts 17 are respectively limited and slidably engaged with the two spiral guide grooves on the spline rod 16. When the stirring component 5 rotates, the outer ring of the connecting ring 19 is stationary relative to the inner cylinder 2, while the stirring component 5 drives the inner ring of the connecting ring 19 to rotate synchronously. The sediment in the inner cylinder 2 increases the resistance when the stirring component 5 and the first turbine 6 rotate. When the impact force on the first turbine 6 and the second turbine 12 is the same, an angle difference will appear between the first turbine 6 and the second turbine 12. The angle difference between the first turbine 6 and the second turbine 12 is used to release the seal of the sealing ring 13 on the through hole of the inner cylinder 2, so that the sediment in the inner cylinder 2 can be discharged from the through hole, reducing the influence of the sediment on the rotation of the stirring component 5 and the first turbine 6.

[0051] Working process: As the device is used, the water to be treated mixes with the reagent to produce sediment. Some of the sediment is too large to move upwards to the drainage area of ​​the outer cylinder 1 under the influence of the water flow, thus accumulating at the bottom of the inner cylinder 2. The increasing sediment provides resistance to the rotation of the stirring element 5 and the first turbine 6. Since the impact force of the water on the first turbine 6 and the second turbine 12 is the same, a rotational difference will occur between the first turbine 6 and the second turbine 12. The second turbine 12 drives the rotating disk 10 to rotate through the connecting column 9, and the torsion spring 11 is tightened. The connecting column 9 and the fixing ring 8 rotate relative to each other. Under the limiting action of the two limiting columns 17, Spline rod 16 rotates with connecting column 9 and moves upward. Spline rod 16 and the telescopic end of first telescopic rod 18 rotate. After the telescopic end of first telescopic rod 18 is squeezed, the hydraulic oil inside it flows into the cavity of connecting ring 19 along the oil guide pipe. The hydraulic oil in connecting ring 19 flows into the two second telescopic rods 20 along the oil guide pipe. The telescopic ends of second telescopic rods 20 retract and drive sliding plate 14 to move upward. Sliding plate 14 pulls tension spring 15 upward. When the tension of tension spring 15 is greater than the frictional damping between fixed seat 131 and sliding rod 132, the two tension springs 15 pull sealing ring 13 upward. Sealing ring 13 releases the seal on the through hole of inner cylinder 2.

[0052] The sediment in the inner cylinder 2 is discharged from the through hole under the action of the water flow and sinks to the bottom of the outer cylinder 1. After the sediment in the inner cylinder 2 is discharged, the resistance encountered by the agitator 5 and the first turbine 6 when rotating is reduced. Then the first turbine 6 drives the agitator 5 to return to the initial state, so that the relative position of the first turbine 6 and the second turbine 12 is restored. At this time, the torsion spring 11 is reset, and the spline rod 16 is reset downward. At the same time, the extension end of the first telescopic rod 18 moves downward to allow the hydraulic oil to flow back. The two second telescopic rods 20 extend downward. The second telescopic rods 20 press the sealing ring 13 downward through the sliding plate 14 and the tension spring 15, so that the lower side of the sealing ring 13 contacts the limiting ring below it again, thus completing the sealing of the through hole of the inner cylinder 2.

[0053] Example 2: Based on Example 1, referring to... Figure 3 and Figure 4 It also includes: a first fixing post 121, which is fixed to the bottom of the second turbine 12. The first fixing post 121 is coaxially arranged inside the water guide shell 3. The diameter of the first fixing post 121 is the same as the diameter of the connecting rod 7, so as to ensure that the flow area in the middle and lower parts of the water guide shell 3 is the same.

[0054] In the above scheme, the main purpose is to ensure that the first turbine 6 and the second turbine 12 are subjected to the same water flow impact area and velocity. The first fixed column 121 is located at the joint between the water guide shell 3 and the water inlet pipe 4, and is used to occupy the water flow area at the lower end of the water guide shell 3, so as to ensure the flow velocity of the water to be treated through the middle and lower part of the water guide shell 3, and to keep the relative position of the first turbine 6 and the second turbine 12 in a stable state.

[0055] Example 3: Based on Example 2, referring to... Figure 7 and Figure 8 It also includes: a plurality of limiting rods 21, which are slidably connected to adjacent fixed seats 131 respectively; a sliding rod 132 is provided with a limiting blind hole; one end of the limiting rod 21 is located in the limiting blind hole of the sliding rod 132; the limiting rod 21 is used to limit the sliding rod 132; an elastic element for resetting is installed between the limiting rod 21 and the fixed seat 131; and a second fixed post 22 is fixedly connected to the other end of the limiting rod 21; and a plurality of pressing plates 23, which are fixedly connected to adjacent sliding plates 14 respectively; the pressing plate 23 is provided with an inclined surface, which is pressed and engaged with the second fixed post 22.

[0056] In the above scheme, the main purpose is to reduce the opening time of the sealing ring 13 to the through hole on the inner cylinder 2, avoid frequent movement of the sealing ring 13, and improve the continuity and stability of the operation of the device. There are two limiting rods 21. The two limiting rods 21 are slidably connected to the mounting bases of adjacent fixed seats 131. The limiting rods 21 are equipped with limiting plates. An elastic element is installed between the limiting plate of the limiting rod 21 and the mounting base on the fixed seat 131. One end of the limiting rod 21 is set as a ball head and inserted into the limiting blind hole of the slide rod 132. When the extension end of the second telescopic rod 20 drives the sliding plate 14 to move, the limiting rod 21 limits the slide rod 132, so that the slide rod 132 is relatively stationary with respect to the fixed seat 131. In order to reduce the friction between the second fixed column 22 and the extrusion plate 23, a rotating sleeve is provided on the outside of the second fixed column 22.

[0057] Working process: When the second telescopic rod 20 moves the sliding plate 14 upward, the tension spring 15 is gradually stretched, but the slide rod 132 does not slide along the fixed seat 131. When the inclined surface of the extrusion plate 23 presses the second fixed column 22, the second fixed column 22 drives the limiting rod 21 to slide along the mounting seat on the fixed seat 131. The limiting rod 21 moves out of the limiting blind hole of the slide rod 132. At this time, the telescopic end of the second telescopic rod 20 has been completely retracted. Then, under the tension of the tension spring 15, the tension spring 15 pulls the sealing ring 13 upward. There is frictional damping between the fixed seat 131 and the slide rod 132, so that the sealing ring 13 moves upward slowly, avoiding the unstable rotation of the stirring component 5 and the first turbine 6, which would cause the tension spring 15 to be stretched repeatedly, thus causing the sealing ring 13 to slide up and down repeatedly, thereby improving the continuity and stability of the device during use.

[0058] After the sediment in the inner cylinder 2 is discharged, during the process of restoring the relative positions of the first turbine 6 and the second turbine 12, the telescopic end of the second telescopic rod 20 moves downward to reset, the sliding plate 14 moves downward and squeezes the tension spring 15, and at the same time the squeezing plate 23 releases the restriction on the second fixed column 22. The tension spring 15 pushes the sealing ring 13 to move downward to reset until the limiting blind hole of the slide rod 132 moves to the same height as the limiting rod 21. Under the action of the elastic element on the limiting rod 21, the limiting rod 21 slides along the mounting seat on the fixed seat 131, and the limiting rod 21 is again limited and engaged with the limiting blind hole of the slide rod 132.

[0059] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A solid-liquid separation fluidized bed, characterized in that, Including: outer cylinder (1); The inner cylinder (2) is coaxially arranged inside the outer cylinder (1). The inner cylinder (2) is provided with multiple through holes of the same height, which are used to discharge the sediment inside. A water guide shell (3) is connected to the bottom of the inner cylinder (2), and a water inlet pipe (4) is connected to the bottom of the water guide shell (3). The water inlet pipe (4) passes through the outer cylinder (1). The agitator (5) is rotatably connected to the top of the outer cylinder (1) and coaxially disposed in the inner cylinder (2). The bottom end of the agitator (5) is fixedly connected to the first turbine (6), which is coaxially disposed in the water guide shell (3). A connecting rod (7) is fixed to the bottom side of the first turbine (6). A cavity is provided inside the connecting rod (7). A fixing ring (8) is fixed to the bottom of the connecting rod (7). A connecting column (9) is rotatably connected to the fixing ring (8). A rotating disk (10) is rotatably connected to the top of the connecting column (9). A torsion spring (11) is fixed between the fixing ring (8) and the rotating disk (10). A second turbine (12) is fixed to the bottom end of the connecting column (9). The second turbine (12) is rotated by the impact of the water to be treated to assist the first turbine (6) in rotating. The sludge discharge assembly is installed on the outer wall of the inner cylinder (2) to seal the through hole of the inner cylinder (2) and to discharge the residual sediment inside it at regular intervals; The water guide shell (3) is set in the shape of a gourd, with a constricted structure in the middle and lower parts. The diameter of the middle and lower parts of the water guide shell (3) is the same, which is used to ensure that the water flow speed is the same when the water to be treated passes through the middle and lower parts of the water guide shell (3). The second turbine (12) is coaxially disposed inside the water guide shell (3). The distance between the first turbine (6) and the middle constriction structure of the water guide shell (3) is the same as the distance between the second turbine (12) and the lower constriction structure of the water guide shell (3), in order to ensure that the first turbine (6) and the second turbine (12) are subjected to the same impact force from the water to be treated.

2. The solid-liquid separation fluidized bed according to claim 1, characterized in that: The inner cylinder (2) and the outer cylinder (1) are provided with a gap to form a sedimentation channel for the precipitate.

3. The solid-liquid separation fluidized bed according to claim 2, characterized in that, The sludge removal assembly includes: A sealing ring (13) is slidably connected to the outer wall of the inner cylinder (2). The sealing ring (13) is used to seal the through hole of the inner cylinder (2). At least two fixing seats (131) are fixed to the outer wall of the inner cylinder (2). The fixing seats (131) are slidably connected to a slide rod (132) whose bottom end is fixed to the sealing ring (13). The slide rod (132) is slidably connected to a slide plate (14), and a tension spring (15) is fixed between the slide plate (14) and the sealing ring (13). A drive component is disposed between the connecting rod (7) and the connecting column (9) for changing the position of the sealing ring (13) according to the difference in rotational speed between the first turbine (6) and the second turbine (12) to release the through hole of the inner cylinder (2).

4. The solid-liquid separation fluidized bed according to claim 3, characterized in that: There is frictional damping between the slide rod (132) and the fixed seat (131) to reduce the moving speed of the slide rod (132).

5. The solid-liquid separation fluidized bed according to claim 4, characterized in that: The driving component includes: Spline rod (16), the spline rod (16) is coaxially disposed in the cavity of the connecting rod (7), the connecting column (9) is provided with a spline blind hole, the bottom of the spline rod (16) is provided with a spline, the spline at the bottom of the spline rod (16) is limited to slide in the spline blind hole of the connecting column (9), and the top of the spline rod (16) is provided with at least two helical guide grooves; The number of limiting posts (17) is the same as the number of spiral guide grooves on the spline rod (16), and they are fixed to the inner wall of the cavity of the connecting rod (7). The limiting posts (17) and the spiral guide grooves are in a limiting sliding fit. The first telescopic rod (18) is fixedly connected to the cavity of the connecting rod (7). The telescopic end of the first telescopic rod (18) is rotatably connected to the spline rod (16). The first telescopic rod (18) is filled with hydraulic oil. A connecting ring (19) is fixedly connected to the outside of the stirring component (5). An oil guide pipe is connected between the first telescopic rod (18) and the connecting ring (19). The fixed seat (131) is fixedly connected to the second telescopic rod (20). The telescopic end of the second telescopic rod (20) is fixedly connected to the sliding plate (14). An oil guide pipe is connected between the second telescopic rod (20) and the connecting ring (19).

6. The solid-liquid separation fluidized bed according to claim 5, characterized in that: The connecting ring (19) is configured as an inner ring and an outer ring. An oil storage cavity is provided between the inner ring and the outer ring of the connecting ring (19). The inner ring of the connecting ring (19) is fixedly connected to the stirring element (5). The outer ring of the connecting ring (19) is rotatably connected to the inner ring in a sealed manner.

7. The solid-liquid separation fluidized bed according to claim 6, characterized in that, Also includes: The first fixed post (121) is fixed to the bottom of the second turbine (12). The first fixed post (121) is coaxially arranged inside the water guide shell (3). The diameter of the first fixed post (121) is the same as the diameter of the connecting rod (7) to ensure that the flow area in the middle and lower part of the water guide shell (3) is the same.

8. The solid-liquid separation fluidized bed according to claim 7, characterized in that, Also includes: A plurality of limiting rods (21) are provided, and the plurality of limiting rods (21) are slidably connected to adjacent fixed seats (131). The slide rod (132) is provided with a limiting blind hole. One end of the limiting rod (21) is located in the limiting blind hole of the slide rod (132). The limiting rod (21) is used to limit the slide rod (132). An elastic element for resetting is installed between the limiting rod (21) and the fixed seat (131). The other end of the limiting rod (21) is fixedly connected to a second fixed post (22). There are several extrusion plates (23), and several extrusion plates (23) are respectively fixed to adjacent sliding plates (14). The extrusion plates (23) are provided with inclined surfaces, which are extruded and engaged with the second fixed column (22).

Images