A bottom flow regulator and hydrocyclone integrated with a casing

Abstract

The utility model provides a kind of bottom flow regulator and hydraulic cyclone of bushing integration, this bottom flow regulator includes upper socket fixing piece, the elastic hose for being connected with the bottom flow outlet of hydraulic cyclone, telescopic mechanism and movable lower socket, two ends of the elastic hose are respectively fixedly connected with upper socket fixing piece, movable lower socket, it is connected between upper socket fixing piece, movable lower socket by telescopic mechanism;The telescopic mechanism includes outer tube and inner tube, and the inner tube is located in the outer tube and is movably connected, by adjusting the relative position of outer tube and inner tube, the elongation of elastic hose is changed, to change the diameter of hose nozzle, to adjust the flow rate of bottom flow.Using the technical scheme of the utility model, the bottom flow of hydraulic cyclone can be conveniently adjusted, the turbulent flow is reduced, the wear of bottom flow regulator is reduced, and the risk of blockage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hydrocyclone technology, and in particular to an underflow regulator and hydrocyclone with an integrated sleeve. Background Technology

[0002] Hydrocyclones are currently the mainstream equipment for efficient separation and classification of particulate suspensions. Their working principle is as follows: the feed suspension is injected tangentially into the hydrocyclone cavity. Under the action of centrifugal force, the heavier components move towards the wall and are discharged through the underflow port, while the lighter components migrate towards the center and are discharged through the overflow port. The separation performance of the hydrocyclone, especially the distribution ratio of underflow and overflow, is affected by various factors. Among them, the diameter of the underflow nozzle and the underflow head loss are key parameters. It is worth noting that fluctuations in feed solid concentration, particle size distribution, fluid viscosity, or feed pressure will significantly affect the distribution balance of underflow and overflow by changing the underflow head loss. Regarding underflow control, existing technologies mainly have the following limitations:

[0003] (1) Traditional valves (such as knife valves): These are usually installed on extended underflow nozzle pipes and the head loss is adjusted by opening and closing to control the underflow. However, such rigid valves are prone to severe wear and clogging, and the opening and closing process can cause severe turbulence, affecting the stability of the flow field.

[0004] (2) Pneumatic ring valve: This type of valve uses an elastic material to create a ring structure. By adjusting the internal air pressure, the size of the ring is changed, thereby reducing the flow cross-sectional area to control the flow rate. Although this method can alleviate valve wear and extend equipment life, the sudden change in flow diameter caused by its structure can still induce significant turbulence. This turbulence can easily lead to the breakage of flocs or aggregates of light components, affecting separation accuracy or subsequent processing.

[0005] (3) Closed pressure vessel control: The underflow is discharged into a closed container, and the flow rate is controlled by adjusting the back pressure inside the container. This method is widely used in oil-water separation, but when used with suspended solids, the underflow status cannot be observed in real time, which significantly increases the risk of blockage and operational failure, and makes operation and maintenance inconvenient.

[0006] In summary, existing underflow control technologies generally suffer from significant drawbacks: traditional valves are prone to wear and blockage, and they disturb the flow field; while pneumatic ring valves improve wear, turbulence problems persist, damaging flocs; and closed containers lack visibility, posing high operational risks. These shortcomings all challenge the long-term stable operation, separation efficiency, and operational reliability of hydrocyclones. Therefore, there is an urgent need to develop a novel underflow control device that features low wear, stable flow, good visibility, and convenient operation to improve the overall performance of hydrocyclones. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model discloses an integrated underflow regulator and hydrocyclone, which is convenient and quick to adjust, can rapidly respond to adjust the underflow, and reduces wear on the underflow regulator, thereby lowering the risk of blockage.

[0008] The technical solution of this utility model is as follows:

[0009] An integrated underflow regulator includes an upper inlet fixing component, an elastic hose for connecting to the underflow outlet of a hydrocyclone, a telescopic mechanism, and a movable lower inlet. The two ends of the elastic hose are fixedly connected to the upper inlet fixing component and the movable lower inlet, respectively. The upper inlet fixing component and the movable lower inlet are connected by the telescopic mechanism. The telescopic mechanism includes an outer tube and an inner tube, with the inner tube located inside the outer tube and movably connected. By adjusting the relative positions of the outer and inner tubes, the elongation of the elastic hose is changed, thereby altering the diameter of the hose nozzle, thus regulating the underflow velocity and reducing head loss.

[0010] As a further improvement of this utility model, the upper insertion port fixing member is connected to the upper end of the outer tube, the movable lower insertion port is connected to the upper end of the inner tube, and the outer tube is connected to the inner tube through the fixing member; loosening the fixing member allows the inner tube to move axially within the outer tube, changing the elongation of the elastic hose, and fixing the inner tube through the fixing member, thereby adjusting the underflow head loss and controlling the underflow rate; this technical solution uses sleeve positioning, which allows the use of a longer elastic hose nozzle; the additional length can further reduce the dilution of the underflow suspension and reduce the content of fine particles.

[0011] As a further improvement of this utility model, the fixing element is a pin.

[0012] As a further improvement of this utility model, the upper end of the inner tube is connected to the upper insertion port fixing member, the movable lower insertion port is rotatably connected to the lower end of the outer tube, and the outer tube is connected to the inner tube by threads; rotating the outer tube causes the movable lower insertion port to move up or down, changing the elongation of the elastic hose, thereby adjusting the underflow head loss and controlling the underflow rate.

[0013] This technical solution utilizes the material properties of elastic hoses. Elastic materials are incompressible, meaning their volume remains constant during elastic deformation. Utilizing the Poisson effect, the diameter and flow cross-section can be reduced by stretching the elastic hose along its length. Specifically, by axially moving the inner and outer tubes, the fixed position of the movable lower inlet is changed, stretching or releasing the elastic hose, thereby adjusting the underflow head loss and controlling the underflow rate.

[0014] As a further improvement of this utility model, the internal thread of the outer tube and the external thread of the inner tube are low-slope threads.

[0015] As a further improvement of this utility model, the elastic hose is made of rubber. More specifically, the elastic hose is made of fluorinated rubber or natural rubber.

[0016] As a further improvement of this utility model, the upper insertion port fixing member is provided with an upper insertion port, the movable lower insertion port is provided with a lower insertion port, and the two ends of the elastic hose are respectively fixedly connected to the upper insertion port and the lower insertion port.

[0017] As a further improvement of this utility model, the lower end of the elastic hose is connected to a nozzle.

[0018] This utility model discloses a hydrocyclone, which includes an underflow regulator with an integrated sleeve as described above.

[0019] As a further improvement of this utility model, the hydrocyclone includes a hydrocyclone body, a hydrocyclone inlet, a hydrocyclone overflow outlet, and a hydrocyclone underflow outlet. The elastic hose is connected to the hydrocyclone underflow outlet, and the upper insertion fastener is fixedly connected to the hydrocyclone body.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] By adopting the technical solution of this utility model, the underflow regulator moves the movable lower inlet down or up by the axial displacement between the inner and outer tubes, thereby stretching or releasing the elastic hose, which can conveniently regulate the underflow; moreover, it can be quickly replaced and maintained without disassembling the hydrocyclone, making it convenient to use.

[0022] The underflow regulation method employed in this invention generates low turbulence, minimizing the shear stress on easily broken suspended solids such as activated sludge, thereby reducing damage to fragile suspended solids and minimizing wear on the underflow regulator. Furthermore, the device possesses self-cleaning capabilities, helping to reduce the risk of clogging; and because there are no dead zones inside, at the front, or at the rear of the underflow regulator, the problem of gradual accumulation of solid matter can be avoided. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the underflow regulator structure with integrated sleeve in Embodiment 1 of this utility model.

[0024] Figure 2 This is a schematic diagram of the underflow regulator structure with integrated sleeve in Embodiment 2 of this utility model.

[0025] The reference numerals in the figures include:

[0026] 1-Hydrocyclone body, 2-Hydrocyclone underflow outlet, 3-Underflow regulator;

[0027] 31-Upper insertion fastener, 32-Elastic flexible hose, 33-Modible lower insertion port, 34-Outer tube, 35-Inner tube, 36-Fixing pin. Detailed Implementation

[0028] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1 As shown, an integrated underflow regulator includes an upper connector fixing member 31, an elastic hose 32 for connecting to the underflow outlet 2 of a hydrocyclone, a telescopic mechanism, and a movable lower connector 33. The two ends of the elastic hose 32 are fixedly connected to the upper connector fixing member 31 and the movable lower connector 33, respectively. The upper connector fixing member 31 is fixed to the hydrocyclone body 1. The upper connector fixing member 31 and the movable lower connector 33 are connected by the telescopic mechanism. The telescopic mechanism is used to stretch the elastic hose 32, thereby changing the cross-sectional area of ​​the elastic hose 32.

[0031] The telescopic mechanism includes an outer tube 34 and an inner tube 35. The inner tube 35 is located inside the outer tube 34. The upper insertion port fixing member 31 is connected to the upper end of the outer tube 34, and the movable lower insertion port 33 is connected to the upper end of the inner tube 35. The inner tube 35 is movably connected to the outer tube 34. The outer tube 34 is connected to the inner tube 35 by a fixing pin 36. Loosening the fixing pin 36 allows the inner tube 35 to move axially within the outer tube 34, changing the elongation of the elastic hose 32. The inner tube 35 is then fixed by the fixing pin 36, thereby adjusting the underflow head loss and controlling the underflow rate.

[0032] In this embodiment, the elastic hose 32 is fixed between the upper insertion fixing member 31 and the movable lower insertion port 33, and the elastic hose 32 is clamped between the upper end of the outer tube 34 and the upper end of the inner tube 35. The inner tube 35 can move within the outer tube 34, thereby changing the elongation of the elastic hose 32. This is achieved by increasing the distance H between the upper insertion fixing member 31 and the movable lower insertion port 33. x The diameter of the flexible hose 32, which had never been enlarged, decreased to a diameter D. xThis allows for underflow regulation. The solution employs a sleeve positioning system, enabling the use of a longer flexible hose 32. The added length further reduces dilution of the underflow suspension and lowers the content of fine particles. Additionally, this solution allows for quick replacement and maintenance without disassembling the hydrocyclone. Stretching the flexible hose 32 creates a gradual diameter change from the initial diameter to the final stable diameter, minimizing turbulence and reducing material abrasion and shear forces in the suspension. Consequently, damage to fragile agglomerates and flocs in the suspension is reduced. The smooth transition of the nozzle diameter from the initial diameter to the operating state avoids the risk of gradual solid buildup; if oversized foreign objects enter the underflow, the nozzle's elasticity allows larger objects to pass through in a self-cleaning manner.

[0033] Furthermore, the material of the flexible hose 32 determines its elongation at break. The material of the flexible hose 32 can be either fluorinated rubber or natural rubber. Fluorinated rubber has an elongation at break of 3 times its original length, while natural rubber has an elongation at break of more than 5 times its original length. The normal operating range of the flexible hose 32 used in the underflow regulator 3 is an elongation between 1 and 2.5, which corresponds to a change in cross-sectional flow area between 100% and 50%.

[0034] Example 2

[0035] like Figure 2 As shown, based on Embodiment 1, the difference in this embodiment lies in the structure of the telescopic mechanism. Specifically, the telescopic mechanism includes an outer tube 34 and an inner tube 35. The inner tube 35 is located inside the outer tube 34. The upper end of the inner tube 35 is connected to the upper insertion port fixing member 31, and the movable lower insertion port 33 is rotatably connected to the lower end of the outer tube 34. The outer tube 34 is provided with internal threads, and the inner tube 35 is provided with external threads. The outer tube 34 is connected to the inner tube 35 through threads. Rotating the outer tube 34 causes the movable lower insertion port 33 to move up or down, changing the elongation of the elastic hose 32, thereby adjusting the underflow head loss and controlling the underflow rate.

[0036] In this technical solution, the flexible hose 32 is clamped between the upper end of the inner tube 35 and the movable lower insertion port 33. The movable lower insertion port 33 is rotatably connected to the lower end of the outer tube 34. The inner tube 35 is fixed on the underflow of the hydrocyclone, and the outer tube 34 can be screwed onto the inner tube 35, thereby changing the elongation rate of the flexible hose 32. This is achieved by increasing the distance H between the upper insertion port fixing member 31 and the movable lower insertion port 33. x The diameter of the flexible hose 32 is reduced from the unenlarged diameter D0 to the diameter D. x This technical solution has a compact structure and is suitable for a smaller setting range.

[0037] Example 3

[0038] A hydrocyclone includes a hydrocyclone body, a hydrocyclone inlet, a hydrocyclone overflow outlet, a hydrocyclone underflow outlet, and an underflow regulator 3 with an integrated sleeve as described in Embodiment 1 or Embodiment 2. The flexible hose is connected to the hydrocyclone underflow outlet, and the upper insertion fastener is fixedly connected to the hydrocyclone body.

[0039] As should be understood in the description of this utility model, terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model and simplifying the description, and do not indicate or imply that the device 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 utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can be directly connected or indirectly connected through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the shape and structure of this utility model are within the protection scope of this utility model.

Claims

1. A casing-integrated underflow regulator, characterized in that: It includes an upper insertion port fixing component, an elastic hose for connecting to the underflow outlet of a hydrocyclone, a telescopic mechanism, and a movable lower insertion port. The two ends of the elastic hose are respectively fixedly connected to the upper insertion port fixing component and the movable lower insertion port, and the upper insertion port fixing component and the movable lower insertion port are connected by the telescopic mechanism. The telescopic mechanism includes an outer tube and an inner tube. The inner tube is located inside the outer tube and is movably connected. By adjusting the relative position of the outer tube and the inner tube, the elongation of the elastic hose is changed, thereby changing the diameter of the hose nozzle, thus adjusting the underflow velocity and reducing head loss.

2. The underflow regulator with integrated sleeve as described in claim 1, characterized in that: The upper insertion port fixing member is connected to the upper end of the outer tube, and the movable lower insertion port is connected to the upper end of the inner tube. The outer tube is connected to the inner tube through the fixing member. Loosen the fixing member to allow the inner tube to move axially inside the outer tube, and fix the inner tube through the fixing member.

3. The underflow regulator with integrated sleeve as described in claim 2, characterized in that: The fastener is a pin.

4. The underflow regulator with integrated sleeve as described in claim 1, characterized in that: The upper end of the inner tube is connected to the upper insertion port fixing member, the movable lower insertion port is rotatably connected to the lower end of the outer tube, and the outer tube is connected to the inner tube by threads; rotating the outer tube causes the movable lower insertion port to move up or down.

5. The underflow regulator with integrated sleeve as described in claim 4, characterized in that: The inner thread of the outer tube and the outer thread of the inner tube are low-slope threads.

6. The underflow regulator with integrated sleeve as described in claim 1, characterized in that: The flexible hose is made of rubber.

7. The underflow regulator with integrated sleeve according to any one of claims 1 to 6, characterized in that: The upper insertion port fixing component has an upper insertion port, the movable lower insertion port has a lower insertion port, and the two ends of the elastic hose are respectively fixedly connected to the upper insertion port and the lower insertion port.

8. A hydrocyclone, characterized in that: It includes the underflow regulator with integrated sleeve as described in any one of claims 1 to 7.

9. The hydrocyclone according to claim 8, characterized in that: It includes a hydrocyclone body, a hydrocyclone inlet, a hydrocyclone overflow outlet, and a hydrocyclone underflow outlet. The flexible hose is connected to the hydrocyclone underflow outlet, and the upper insertion fastener is fixedly connected to the hydrocyclone body.

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