Improved hydrocyclone

Abstract

The utility model relates to the technical field of hydraulic cyclone, concretely relates to an improved hydraulic cyclone, the utility model is constituted by feed guide flow component, combined wear -resistant lining, shell, overflow pipe, underflow pipe component, quick -release ring and quick -release type sand trap and the like spare. Combined wear -resistant lining is installed to the outer periphery of feed guide flow component through the clamping groove, effectively resists the high -speed particle scour, and combined wear -resistant lining adopts modularization design, when combined wear -resistant lining appears partial wear, can individually replace the wear lining. Quick -release type sand trap is cooperated through the pin column and quick -release ring, realizes the quick dismounting maintenance of sand trap, reduces the downtime. The utility model has improved the wear -resistant performance and service life of hydraulic cyclone, has improved the maintenance convenience, is applicable to mineral processing, high turbidity sewage treatment and the like field.

Description

Technical Field

[0001] This utility model relates to the field of hydrocyclone technology, specifically to an improved hydrocyclone. Background Technology

[0002] Hydrocyclones, as highly efficient separation and classification devices based on the principle of centrifugal sedimentation, are widely used in wastewater treatment, mineral processing, and solid-liquid separation due to their simple structure, large processing capacity, and high separation efficiency. Their core working principle involves allowing the two-phase mixture to be separated to enter the equipment tangentially under pressure. Utilizing the differences in centrifugal force and fluid drag experienced by particles of different sizes, coarse particles are discharged through the underflow outlet, while fine particles are discharged through the overflow pipe, thus achieving separation and classification. The sedimentation nozzle is a key component of the hydrocyclone, typically a conical or tubular structure connected to the end of the hydrocyclone cone, serving as the discharge channel for coarse particles and sediment. Due to prolonged direct contact with the high-concentration coarse-particle fluid, the sedimentation nozzle is one of the core components of the hydrocyclone that is prone to wear and requires frequent maintenance and replacement.

[0003] A search revealed CN214554504U, which discloses a hydrocyclone for wastewater treatment. This hydrocyclone, through the installation of a spirally wound cyclone tube inside the cylinder, along with an inner cylinder and spiral blades, enhances the intensity of the vortex flow, improving the separation efficiency of light and fine solids in wastewater and meeting the basic requirements of wastewater treatment. However, when treating fluids containing high concentrations of hard particles, the inner walls of the cylinder, cone, etc., are in direct contact with the high-speed flowing particles, making them prone to wear due to continuous scouring. Once localized wear occurs on the inner wall, the entire cylinder or cone often needs to be replaced, increasing maintenance costs and potentially affecting separation accuracy due to structural deformation caused by wear.

[0004] CN216704717U discloses a hydrocyclone with an easy-to-replace underflow port. By setting a spring pin and a locking plate at the top of the underflow port, and cooperating with the insertion hole and support plate of the underflow port in the hydrocyclone body, it achieves quick assembly and disassembly of the underflow port, solving to some extent the problem of cumbersome assembly and disassembly using traditional bolt or flange connections. However, this structure relies on the elasticity of the spring pin to achieve a tight fit between the locking plate and the support plate. During long-term operation, the spring is continuously subjected to alternating stress, which can easily lead to fatigue failure and loosening of the locking plate. Especially under high-pressure conditions, this loosening may cause the underflow port to detach or material to leak, affecting the stable operation of the equipment and posing certain safety hazards.

[0005] In conclusion, there is still room for improvement in the wear resistance and ease of maintenance of existing hydrocyclones. Utility Model Content

[0006] In response to the work requirements and existing problems in the aforementioned background technology, the inventors have considered and innovated in order to provide an improved hydrocyclone that combines wear resistance and easy maintenance, and is particularly suitable for fluid separation scenarios containing high concentrations of hard particles (such as mineral processing, high turbidity wastewater treatment, etc.).

[0007] To solve the above problems and achieve the above objectives, the present invention adopts the following technical solution:

[0008] An improved hydrocyclone comprises a feed guide assembly, a combined wear-resistant liner, an outer shell, an overflow pipe, a bottom flow pipe assembly, a quick-release ring, and a quick-release sediment nozzle. The feed guide assembly consists of a main frame, a feed pipe, and spiral blades fixedly connected together. The main frame has a through hole in the center and a groove at the bottom that matches the combined wear-resistant liner. The combined wear-resistant liner is snapped into the groove at the bottom of the main frame and covers the outer periphery of the feed guide assembly. The outer shell is detachably connected to the outer periphery of the feed guide assembly, and the shape of the outer shell... It is matched with the feed guide assembly; the overflow pipe is fixedly connected to the central through hole of the feed guide assembly; the underflow pipe assembly is detachably connected to the bottom of the feed guide assembly, the bottom of the underflow pipe assembly has external threads, and the bottom flange has several through holes; the quick-release ring has internal threads, and the quick-release ring is connected to the underflow pipe assembly by threads; the quick-release sand discharge nozzle has several pins, the number of pins being the same as the number of through holes on the bottom flange of the underflow pipe assembly; the quick-release sand discharge nozzle is detachably connected to the quick-release ring by pins passing through the through holes on the bottom flange of the underflow pipe assembly.

[0009] Preferably, the combined wear-resistant liner is composed of a first wear-resistant liner, a second wear-resistant liner, a third wear-resistant liner, and a fourth wear-resistant liner; there are several first wear-resistant liners, each with an arc-shaped structure and slots at both ends; there are several second wear-resistant liners, each detachably connected to two first wear-resistant liners via slots on the first wear-resistant liner, each with an arc-shaped structure and slots at both ends matching the first wear-resistant liner; the third wear-resistant liner has an arc-shaped structure and slots at both ends; the fourth wear-resistant liner is detachably connected between the first and third wear-resistant liners, and has an arc-shaped structure and slots at both ends matching the third wear-resistant liner.

[0010] Preferably, the first wear-resistant liner is higher than the third wear-resistant liner, and the second wear-resistant liner is higher than the fourth wear-resistant liner.

[0011] Preferably, the outer shell is composed of a first outer shell and a second outer shell, which are detachably connected; the first outer shell has a through hole that matches the feed pipe.

[0012] Preferably, the underflow tube assembly comprises a first underflow tube, a second underflow tube, and a third underflow tube; one end of the first underflow tube is detachably connected to the feed guide assembly, and the other end is detachably connected to the second underflow tube; one end of the second underflow tube is detachably connected to the first underflow tube, and the other end is detachably connected to the third underflow tube; one end of the third underflow tube is detachably connected to the second underflow tube, and the other end has an external thread, which is threadedly connected to a quick-release ring; the bottom flange of the third underflow tube has several through holes.

[0013] Preferably, the quick-release ring is a hollow ring structure with several quick-release grooves evenly distributed on it, the number of quick-release grooves being the same as the number of pins.

[0014] Preferably, the quick-release slot has a first opening at one end, with a slot matching the shape of the pin, and a second opening at the other end.

[0015] Preferably, the diameter of the second opening is larger than that of the first opening.

[0016] Preferably, the quick-release sand-receiving nozzle consists of a pin, a sand-receiving nozzle, and an elastic rubber pad; the pin is fixedly connected to the sand-receiving nozzle; the elastic rubber pad has several through holes, the number of which is the same as the number of pins, and the elastic rubber pad passes through the pins and is fixedly connected to the sand-receiving nozzle.

[0017] The working principle of this utility model is as follows:

[0018] The material to be processed enters the device through the feed pipe of the feed guide assembly. Under the guidance of the spiral blades, a high-speed rotating vortex is formed. Higher density particles move outwards due to centrifugal force, while lower density fluids or fine particles converge towards the center. Centrifugal force achieves solid-liquid separation or particle size classification. Lighter components (such as clarified liquid or fine particles) are discharged from the overflow pipe, while heavier components (such as coarse particles) flow downwards into the underflow pipe assembly and are finally discharged from the quick-release sand discharge nozzle (e.g.,...). Figure 2 , Figure 3 (As shown).

[0019] During the separation process, the feed guide assembly has a high particle concentration and is subjected to continuous wall-attaching friction from high-speed materials, making it the most concentrated and severely worn part of the entire hydrocyclone. The modular wear-resistant liner, through its modular splicing structure, forms a protective layer covering the outer periphery of the feed guide assembly. When local liner wears due to long-term use, it is not necessary to replace the entire liner; only the worn section needs to be disassembled and replaced (e.g., ...). Figure 4 , Figure 5 (As shown).

[0020] When it is necessary to disassemble, maintain, or clean the quick-release downspout (e.g.) Figure 6As shown in the diagram, the operator lifts the quick-release sand-collecting nozzle upwards, compressing the elastic rubber pad and disengaging the pin from the slot in the first opening. The operator then rotates the quick-release sand-collecting nozzle, moving the pin along the quick-release groove to the second opening. Since the diameter of the second opening is larger than the first opening and there is no slot restriction, the pin can directly disengage downwards from the second opening, thus quickly removing the quick-release sand-collecting nozzle. After maintenance or cleaning, insert the pin from the quick-release sand-collecting nozzle through the second opening and rotate it until it engages in the slot in the first opening to complete the installation.

[0021] The beneficial effects of this utility model are:

[0022] 1. This invention improves the wear resistance of hydrocyclones and extends their service life. The invention uses a combined wear-resistant liner tightly covering the outer periphery of the feed guide assembly. This area is the core region inside the hydrocyclone where the fluid rotation and scouring are most intense and wear is most concentrated. The combined wear-resistant liner can directly withstand the impact and friction of high-speed particles, replacing the outer shell. Damaged liners can be replaced individually after wear, preventing localized wear or even cracks in the outer shell that could lead to material leakage, thus significantly extending the overall service life.

[0023] 2. This utility model improves the ease of maintenance of hydrocyclones, reduces downtime, and lowers maintenance costs. The modular design of the combined wear-resistant liner, outer shell, and underflow pipe assembly allows for individual operation of the faulty part during maintenance, eliminating the need for complete disassembly of the equipment. This significantly simplifies the maintenance process and reduces labor and component replacement costs. Simultaneously, the quick-release underflow nozzle, through its pin and quick-release ring structure, enables sub-second disassembly and assembly, further reducing downtime and maintenance costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0025] Figure 2 This is a top view of the present invention;

[0026] Figure 3 yes Figure 2 The top view shows a cross-sectional view at point AA, and a schematic diagram illustrating the working principle of this utility model.

[0027] Figure 4 This is a three-dimensional assembly drawing of this utility model;

[0028] Figure 5 This is a schematic diagram of the assembly of a modular wear-resistant liner.

[0029] Figure 6 This is a schematic diagram illustrating the disassembly principle of a quick-release sand discharge nozzle;

[0030] Figure 7This is one of the partial cross-sectional views of a partial structural schematic diagram of this utility model;

[0031] Figure 8 This is the second partial cross-sectional view of a partial structural schematic diagram of this utility model;

[0032] Figure 9 This is a three-dimensional structural diagram of the feed guide assembly;

[0033] Figure 10 This is a 3D structural diagram of the quick-release ring;

[0034] Figure 11 This is a three-dimensional structural diagram of a quick-release sand discharge nozzle;

[0035] Figure 12 This is a three-dimensional structural diagram of the first wear-resistant liner;

[0036] Figure 13 This is a three-dimensional structural diagram of the second wear-resistant liner.

[0037] In the figure, the labels are as follows: 1—feed guide assembly, 11—main frame, 12—feed pipe, 13—spiral blade; 2—combined wear-resistant liner, 21—first wear-resistant liner, 22—second wear-resistant liner, 23—third wear-resistant liner, 24—fourth wear-resistant liner; 3—outer shell, 31—first outer shell, 32—second outer shell; 4—overflow pipe; 5—underflow pipe assembly, 51—first underflow pipe, 52—second underflow pipe, 53—third underflow pipe; 6—quick release ring, 61—quick release groove, 611—first opening, 612—second opening, 7—quick release sand discharge nozzle, 71—pin, 72—sand discharge nozzle, 73—elastic rubber pad. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] Example

[0040] like Figure 1 — Figure 13 The diagram shows an improved hydrocyclone, which consists of a feed guide assembly 1, a combined wear-resistant liner 2, an outer shell 3, an overflow pipe 4, an underflow pipe assembly 5, a quick-release ring 6, and a quick-release sand discharge nozzle 7.

[0041] like Figure 9 As shown, the feed guide assembly 1 is composed of a main frame 11, a feed pipe 12, and a spiral blade 13 fixedly connected. The main frame 11 is the basic load-bearing structure of the feed guide assembly. It has a through hole in the center for inserting and fixing the overflow pipe 4, and a slot at the bottom that matches the combined wear-resistant liner 2 for engaging the combined wear-resistant liner 2. The spiral blade 13 is used to enhance the fluid rotation intensity through guiding action.

[0042] like Figure 4 , Figure 5 , Figure 7 , Figure 12 , Figure 13 As shown, the combined wear-resistant liner 2 is snapped onto the slot at the bottom of the main frame 11 and covers the outer periphery of the feed guide assembly 1. The combined wear-resistant liner 2 is used to protect the area where wear is most concentrated, namely the feed guide assembly 1 and the outer shell 3. The combined wear-resistant liner 2 is composed of a first wear-resistant liner 21, a second wear-resistant liner 22, a third wear-resistant liner 23, and a fourth wear-resistant liner 24. There are several first wear-resistant liners 21, and the first wear-resistant liner 21 has an overall arc-shaped structure with slots at both ends. The second wear-resistant liner 24... There are several wear-resistant liners 22. The second wear-resistant liner 22 is detachably connected to the middle of the two first wear-resistant liners 21 via a slot on the first wear-resistant liner 21. The second wear-resistant liner 22 has an overall arc-shaped structure with slots at both ends that match the first wear-resistant liners 21. The third wear-resistant liner 23 has an overall arc-shaped structure with slots at both ends. The fourth wear-resistant liner 24 is detachably connected between the first wear-resistant liner 21 and the third wear-resistant liner 23. The fourth wear-resistant liner 24 has an overall arc-shaped structure with slots at both ends that match the third wear-resistant liner 23. The first wear-resistant liner 21 is higher than the third wear-resistant liner 23, and the second wear-resistant liner 22 is higher than the fourth wear-resistant liner 24.

[0043] like Figure 1 , Figure 4 As shown, the outer shell 3 is detachably connected to the outer periphery of the feed guide assembly 1, and the shape of the outer shell 3 matches the feed guide assembly 1; the outer shell 3 is composed of a first outer shell 31 and a second outer shell 32, which are detachably connected; the first outer shell 31 has a through hole that matches the feed pipe 12.

[0044] like Figure 2 , Figure 3 , Figure 7 As shown, the overflow pipe 4 is fixedly connected to the central through hole of the feed guide assembly 1; the overflow pipe 4 is used to discharge light components, such as clarified liquid or fine particles.

[0045] like Figure 1 , Figure 4As shown, the underflow pipe assembly 5 adopts a segmented, detachable connection, which facilitates individual maintenance and repair of sections with different wear levels. The underflow pipe assembly 5 is used to guide heavy components, such as coarse particles, to be discharged towards the settling nozzle 72. The underflow pipe assembly 5 is detachably connected below the feed guide assembly 1. The underflow pipe assembly 5 consists of a first underflow pipe 51, a second underflow pipe 52, and a third underflow pipe 53. One end of the first underflow pipe 51 is detachably connected to the feed guide assembly 1, and the other end is detachably connected to the second underflow pipe 52. One end of the second underflow pipe 52 is detachably connected to the first underflow pipe 51, and the other end is detachably connected to the third underflow pipe 53. One end of the third underflow pipe 53 is detachably connected to the second underflow pipe 52, and the other end has an external thread, which is threaded to the quick-release ring 6. The bottom flange of the third underflow pipe 53 has several through holes.

[0046] like Figure 10 As shown, the quick-release ring 6 provides a connection and quick-release base for the quick-release sand discharge nozzle 7. The quick-release ring 6 has internal threads and is connected to the underflow pipe assembly 5 by threads. The quick-release ring 6 is a hollow ring structure with several quick-release grooves 61 evenly distributed on it. One end of the quick-release groove 61 has a first opening 611 with a groove matching the shape of the pin 71 of the quick-release sand discharge nozzle 7, and the other end has a second opening 612. The diameter of the second opening 612 is larger than that of the first opening 611.

[0047] like Figure 1 , Figure 4 , Figure 11 As shown, the quick-release sand discharge nozzle 7 is detachably connected to the underflow pipe assembly 5. The quick-release sand discharge nozzle 7 serves as the final channel for the discharge of heavy components such as coarse particles. Its conical structure accelerates the discharge velocity of coarse particles, reducing the risk of particle accumulation and blockage at the outlet. Quick assembly and disassembly are achieved through a quick-release structure using a quick-release ring 6 and pins 71. The quick-release sand discharge nozzle 7 has several pins 71, the number of which is the same as the number of through holes and quick-release grooves 61 on the bottom flange of the underflow pipe assembly 5. The quick-release sand discharge nozzle 7 is detachably connected to the quick-release ring 6 via pins 71 passing through the through holes on the bottom flange of the underflow pipe assembly 5. The quick-release sand discharge nozzle 7 consists of pins 71, a sand discharge nozzle 72, and an elastic rubber pad 73. The pins 71 are fixedly connected to the sand discharge nozzle 72. The elastic rubber pad 73 has several through holes, the number of which is the same as the number of pins 71. The elastic rubber pad 73 passes through the pins 71 and is fixedly connected to the sand discharge nozzle 72.

[0048] In summary, the specific usage process of this utility model is as follows:

[0049] All components of this invention are prefabricated and assembled in the factory. In this embodiment, the application scenario of this invention is slurry separation operation.

[0050] First, such as Figure 2 , Figure 3 As shown, the mineral slurry to be treated is injected into the equipment at a preset pressure through the feed pipe 12 of the feed guide assembly 1. After entering, the mineral slurry rotates at high speed along an arc-shaped trajectory under the guidance of the spiral blades 13. Due to the centrifugal sedimentation principle, the denser coarse particles move outward under the action of centrifugal force, and then reach the quick-release settling nozzle 7 through the underflow pipe assembly 5, and are discharged from the settling nozzle 72; the less dense clarified liquid or fine particles converge towards the center, forming an inner vortex. The fine mineral particles move upward with the inner vortex and are finally discharged through the overflow pipe 4, completing the slurry separation operation.

[0051] Furthermore, such as Figure 4 , Figure 5 As shown, when the present invention has been used for a long time and the combined wear-resistant liner 2 shows local wear, during maintenance, first disassemble the outer shell 3, identify the wear degree of the first wear-resistant liner 21, the second wear-resistant liner 22, the third wear-resistant liner 23, and the fourth wear-resistant liner 24, and replace the corresponding spare liners, and fix them in the slots; finally, reassemble the outer shell 3.

[0052] Furthermore, such as Figure 6 As shown, when the sand settling nozzle 72 is worn due to continuous scouring by coarse particles, or when it is necessary to clean the internal residual impurities, the operator lifts the quick-release sand settling nozzle 7 upwards. The elastic rubber pad 73 is compressed, and the pin 71 is dislodged from the slot of the first opening 611 of the quick-release ring 6. Then, the operator rotates the quick-release sand settling nozzle 7, causing the pin 71 to move along the quick-release groove 61 to the position of the second opening 612. Since the diameter of the second opening 612 is larger than that of the first opening 611 and there is no slot restriction, the pin 71 can be directly dislodged downwards from the second opening 612, and the quick-release sand settling nozzle 7 can be directly pulled downwards.

[0053] Finally, after maintenance or cleaning, align the pin 71 of the quick-release sand nozzle 7 with the second opening 612 of the quick-release ring 6 and insert it. Rotate the quick-release sand nozzle 7 to make the pin 71 slide along the quick-release groove 61 into the slot of the first opening 611 and fix it, thus completing the installation.

Claims

1. An improved hydrocyclone, characterized in that, The hydrocyclone consists of a feed guide assembly (1), a combined wear-resistant liner (2), an outer shell (3), an overflow pipe (4), an underflow pipe assembly (5), a quick-release ring (6), and a quick-release sand nozzle (7); The feed guide assembly (1) is formed by a fixed connection of a main frame (11), a feed pipe (12), and a spiral blade (13). The main frame (11) has a through hole in the center and a slot at the bottom that matches the combined wear-resistant liner (2). The combined wear-resistant liner (2) is snapped into the slot at the bottom of the main frame (11) and covers the outer periphery of the feed guide assembly (1); The outer shell (3) is detachably connected to the outer periphery of the feed guide assembly (1), and the shape of the outer shell (3) matches the feed guide assembly (1); The overflow pipe (4) is fixedly connected to the central through hole of the feed guide assembly (1); The underflow pipe assembly (5) is detachably connected to the bottom of the feed guide assembly (1). The underflow pipe assembly (5) has external threads at the bottom and several through holes on the bottom flange. The quick-release ring (6) has internal threads, and the quick-release ring (6) is connected to the underflow pipe assembly (5) by threads; The quick-release sand nozzle (7) has several pins (71), the number of pins (71) being the same as the number of through holes on the bottom flange of the underflow pipe assembly (5); the quick-release sand nozzle (7) is detachably connected to the quick-release ring (6) by passing through the through holes on the bottom flange of the underflow pipe assembly (5) through the pins (71).

2. An improved hydrocyclone according to claim 1, characterized in that, The combined wear-resistant liner (2) is composed of a first wear-resistant liner (21), a second wear-resistant liner (22), a third wear-resistant liner (23), and a fourth wear-resistant liner (24); There are several first wear-resistant liners (21). The first wear-resistant liners (21) are arc-shaped in whole and have slots at both ends. There are several second wear-resistant liners (22). The second wear-resistant liners (22) are detachably connected to the middle of the two first wear-resistant liners (21) through the slots on the first wear-resistant liners (21). The second wear-resistant liners (22) are arc-shaped in general, and have slots at both ends that match the first wear-resistant liners (21). The third wear-resistant liner (23) has an arc-shaped structure with slots at both ends; The fourth wear-resistant liner (24) is detachably connected between the first wear-resistant liner (21) and the third wear-resistant liner (23). The fourth wear-resistant liner (24) has an arc-shaped structure and has slots at both ends that match the third wear-resistant liner (23).

3. An improved hydrocyclone according to claim 2, characterized in that, The first wear-resistant liner (21) is higher than the third wear-resistant liner (23), and the second wear-resistant liner (22) is higher than the fourth wear-resistant liner (24).

4. An improved hydrocyclone according to claim 1, characterized in that, The outer shell (3) is composed of a first outer shell (31) and a second outer shell (32), which are detachably connected; the first outer shell (31) has a through hole that matches the feed pipe (12).

5. An improved hydrocyclone according to claim 1, characterized in that, The underflow tube assembly (5) consists of a first underflow tube (51), a second underflow tube (52), and a third underflow tube (53); One end of the first underflow pipe (51) is detachably connected to the feed guide assembly (1), and the other end is detachably connected to the second underflow pipe (52); One end of the second underflow pipe (52) is detachably connected to the first underflow pipe (51), and the other end is detachably connected to the third underflow pipe (53); One end of the third underflow pipe (53) is detachably connected to the second underflow pipe (52), and the other end has an external thread that is threaded to the quick-release ring (6); the bottom flange of the third underflow pipe (53) has several through holes.

6. An improved hydrocyclone according to claim 1, characterized in that, The quick-release ring (6) is a hollow ring structure with several quick-release grooves (61) evenly distributed on it. The number of quick-release grooves (61) is the same as the number of pins (71).

7. An improved hydrocyclone according to claim 6, characterized in that, The quick-release slot (61) has a first opening (611) at one end, and a slot matching the shape of the pin (71) on the first opening (611), and a second opening (612) at the other end.

8. An improved hydrocyclone according to claim 7, characterized in that, The diameter of the second opening (612) is larger than that of the first opening (611).

9. An improved hydrocyclone according to claim 1, characterized in that, The quick-release sand-receiving nozzle (7) is composed of a pin (71), a sand-receiving nozzle (72), and an elastic rubber pad (73); The pin (71) is fixedly connected to the sand sinker (72); The elastic rubber pad (73) has several through holes, the number of which is the same as the number of pins (71). The elastic rubber pad (73) passes through the pins (71) and is fixedly connected to the sand sinker (72).

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