Energy-saving hydrocyclone for power plant

By introducing an alternating crushing rod and vibrating screen plate structure into the hydrocyclone, the hydrocyclone clogging problem was solved, resulting in energy saving and improved equipment stability, while reducing energy consumption and maintenance costs.

CN224389008UActive Publication Date: 2026-06-23HUADIAN POWER INTERNATIONAL CORPORATION LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUADIAN POWER INTERNATIONAL CORPORATION LTD
Filing Date
2025-07-21
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In power plants, the presence of numerous particulate impurities in the material inside hydrocyclones can cause blockages, increasing equipment energy consumption and maintenance costs.

Method used

The device employs a staggered arrangement of crushing rods and vibrating screen plates to crush large particles. Combined with reinforced support plates and sealed side plates, it prevents clogging, improves equipment stability, and enhances sealing.

Benefits of technology

It effectively prevents clogging, reduces energy consumption, improves separation efficiency, extends equipment life, reduces maintenance costs, and reduces material waste.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224389008U_ABST
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Abstract

The utility model discloses a power plant energy -saving type cyclone, including cyclone main part, the left side intercommunication of cyclone main part has the inlet pipe, and the right side intercommunication has the overflow pipe, the bottom of cyclone main part is provided with the underflow port. The utility model discloses through the first pivot and the second pivot staggered distribution's rubbing rod in the processing box, under the driving of drive motor, can carry out rubbing to the larger particle in the material of entering the processing box, avoids the larger particle to cause the jam after entering cyclone main part, has guaranteed the normal operation of cyclone, has improved separation efficiency, has reduced the energy that stops and clears up because of jamming and consumes, has reached the purpose that saves energy, the setting of vibrating sieve plate can carry out the preliminary screening to material, and the larger particle will be intercepted on the sieve plate, and along the sieve plate from the discharge slot of inclination is discharged, and the larger particle is conveniently handled or recycled, and the processing effect of material is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of hydrocyclone technology, specifically an energy-saving hydrocyclone for power plants. Background Technology

[0002] During the operation of power plants, various substances need to be separated, such as the separation of ash water in ash removal systems and the concentration and classification of gypsum slurry in limestone-gypsum flue gas desulfurization systems. Hydrocyclones, as a device that uses the principle of centrifugal sedimentation to mechanically separate materials with different densities in heterogeneous mixtures, are widely used in power plants.

[0003] However, the presence of numerous particulate impurities in the material fed into the hydrocyclone can lead to poor material flow during subsequent separation. In order to maintain a certain throughput, it is often necessary to increase the feed pressure, which increases the energy consumption of related equipment such as pumps, thereby increasing unnecessary energy consumption. Utility Model Content

[0004] The purpose of this invention is to provide an energy-saving cyclone separator for power plants, which has the advantage of being anti-clogging.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving hydrocyclone for power plants, comprising a hydrocyclone body, an inlet pipe connected to the left side of the hydrocyclone body and an overflow pipe connected to the right side, an underflow port provided at the bottom of the hydrocyclone body, a processing box connected to the upper end of the inlet pipe, a drive motor fixedly installed on the left side of the processing box, a drive wheel fixedly installed on the output shaft of the drive motor, a driven wheel installed on the front side of the drive wheel via belt drive, a first rotating shaft and a second rotating shaft respectively installed on the right side of the drive wheel and the driven wheel, the first rotating shaft and the second rotating shaft both extending into the interior of the processing box and having equidistantly distributed crushing rods installed alternately on their surfaces, and a vibrating screen plate installed obliquely above the inner cavity of the processing box.

[0006] As a preferred embodiment, a fastening ring is fastened to the upper part of the hydrocyclone body, and a reinforcing support plate is welded to the left side of the fastening ring. The bent part at the upper end of the reinforcing support plate is connected to the bottom of the processing box.

[0007] As a preferred embodiment, a top cover is installed on the top of the processing box, and a sealing side plate is fixedly installed on the outer ring of the bottom of the top cover. The rectangular shape formed by the sealing side plates has a diameter larger than the outer diameter of the upper end of the processing box.

[0008] As a preferred embodiment, a discharge trough is provided on the back of the processing box in the direction of inclination corresponding to the vibrating screen plate, and vertical guide rods are fixedly installed on both sides of the discharge trough. A pull-out door is installed on the outside of the vertical guide rods through a sliding block, and the inner side of the pull-out door is in sealed contact with the outer wall of the discharge trough.

[0009] As a preferred embodiment, a primary filter plate and a secondary filter plate are inserted and installed on the upper and lower sides of the inner cavity of the processing box and below the crushing rod, with the primary filter plate located above the secondary filter plate.

[0010] As a preferred embodiment, inclined guide plates are installed on both sides of the inner cavity of the processing box, and the inclined guide plates are located below the vibrating screen plate.

[0011] As a preferred embodiment, the bottom of the processing box cavity is provided with a discharge port, and a conical hopper is fixedly installed above the discharge port, with the conical opening of the conical hopper communicating with the discharge port at the bottom.

[0012] As a preferred embodiment, a support frame is fixedly installed at the bottom of the drive motor, and the lower bent part of the support frame is connected to the surface of the processing box by screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model utilizes the staggered crushing rods on the first and second rotating shafts within the processing chamber. Driven by a motor, it can crush larger particles in the material entering the processing chamber, preventing them from clogging the hydrocyclone body and ensuring its normal operation. This improves separation efficiency, reduces energy consumption due to shutdowns for cleaning caused by blockages, and achieves energy saving. The vibrating screen plate allows for preliminary screening of the material, intercepting larger particles on the screen plate and discharging them from the discharge chute along the inclined screen plate. This facilitates secondary processing or recycling of larger particles, further improving the material processing effect. The equipment does not require additional power to overcome the resistance caused by blockages, thus reducing unnecessary energy consumption and achieving energy saving.

[0015] 2. By reinforcing the support plate, this utility model builds a stable connecting bridge between the hydrocyclone body and the processing box, tightly connecting the two together. This greatly improves the stability and load-bearing capacity of the entire equipment connection, effectively resists the vibration and impact generated during equipment operation, avoids loosening of the connection due to long-term vibration, reduces the occurrence of equipment failure, extends the service life of the equipment, and reduces maintenance costs.

[0016] Meanwhile, the top cover can effectively seal the processing box, preventing external debris from entering and contaminating the materials inside. The sealing side plate, with a diameter larger than the outer diameter of the upper end of the processing box, can fit tightly against the outer side of the upper end of the processing box, forming a reliable sealing structure. This effectively prevents the materials inside the processing box from overflowing during the processing, reducing material waste. Attached Figure Description

[0017] Figure 1 This is a first-view perspective structural perspective view of the present invention;

[0018] Figure 2 This is a second-view perspective structural perspective view of the present invention;

[0019] Figure 3 This is a front view of the structure of this utility model;

[0020] Figure 4 This is a partial structural cross-sectional view of the present invention from another perspective;

[0021] Figure 5 This is a schematic diagram of the processing box structure of this utility model.

[0022] In the diagram: 1. Hydrocyclone body; 2. Feed pipe; 3. Overflow pipe; 4. Underflow port; 5. Fastening ring; 6. Reinforcing support plate; 7. Processing box; 8. Drive motor; 9. Drive wheel; 10. Driven wheel; 11. First rotating shaft; 12. Second rotating shaft; 13. Crushing rod; 14. Top cover; 15. Sealing side plate; 16. Guide inclined plate; 17. Vibrating screen plate; 18. Pull-out door; 19. Primary filter plate; 20. Advanced filter plate; 21. Conical hopper; 22. Support frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1, please refer to Figure 1As shown, this utility model provides an energy-saving hydrocyclone for power plants, including a hydrocyclone body 1. The left side of the hydrocyclone body 1 is connected to an inlet pipe 2, and the right side is connected to an overflow pipe 3. The bottom of the hydrocyclone body 1 is provided with an underflow port 4. The upper end of the inlet pipe 2 is connected to a processing box 7. A drive motor 8 is fixedly installed on the left side of the processing box 7. A drive wheel 9 is fixedly installed on the output shaft of the drive motor 8. A driven wheel 10 is installed on the front side of the drive wheel 9 via belt drive. A first rotating shaft 11 and a second rotating shaft 12 are respectively installed on the right side of the drive wheel 9 and the driven wheel 10. The first rotating shaft 11 and the second rotating shaft 12 both extend into the interior of the processing box 7 and have equidistantly distributed crushing rods 13 installed alternately on their surfaces. A vibrating screen plate 17 is installed obliquely above the inner cavity of the processing box 7.

[0026] This technical solution utilizes the staggered crushing rods 13 on the first rotating shaft 11 and the second rotating shaft 12 within the processing chamber 7. Driven by the drive motor 8, these rods crush larger particles in the material entering the processing chamber 7, preventing them from clogging the hydrocyclone body 1. This ensures the normal operation of the hydrocyclone, improves separation efficiency, and reduces the energy consumed by stopping the machine for cleaning due to blockage, thus achieving energy saving. The vibrating screen plate 17 provides preliminary screening of the material, intercepting larger particles on the screen plate and discharging them from the discharge chute along the inclined screen plate. This facilitates secondary processing or recycling of larger particles, further improving the material processing effect. The equipment does not require additional power to overcome the resistance caused by blockage, thereby reducing unnecessary energy consumption and achieving energy saving.

[0027] Example 2, based on Example 1, the present invention as follows: Figure 1 As shown, a fastening ring 5 is externally fastened to the upper end of the hydrocyclone body 1. A reinforcing support plate 6 is welded to the left side of the fastening ring 5. The bent part at the upper end of the reinforcing support plate 6 is connected to the bottom of the treatment box 7. A top cover 14 is installed on the top of the treatment box 7. A sealing side plate 15 is fixedly installed on the outer ring at the bottom of the top cover 14. The rectangular diameter formed by the sealing side plates 15 is larger than the outer diameter of the upper end of the treatment box 7.

[0028] Adopting such Figure 1 The technical solution shown in the figure establishes a stable connecting bridge between the hydrocyclone body 1 and the processing box 7, which closely connects the two and greatly improves the stability and load-bearing capacity of the entire equipment connection. It can effectively resist the vibration and impact generated during equipment operation, avoid loosening of the connection due to long-term vibration, reduce the occurrence of equipment failure, extend the service life of the equipment, and reduce maintenance costs.

[0029] Meanwhile, the top cover 14 can effectively seal the processing box 7, preventing external debris from entering the processing box 7 and contaminating the material. The sealing side plate 15, because its diameter is larger than the outer diameter of the upper end of the processing box 7, can fit tightly against the outer side of the upper end of the processing box 7, forming a reliable sealing structure, effectively preventing the material inside the processing box 7 from overflowing during the processing, and reducing material waste.

[0030] Secondly, in the technical solution, a discharge trough is provided on the back of the processing box 7 in the direction of inclination corresponding to the vibrating screen plate 17, and vertical guide rods are fixedly installed on both sides of the discharge trough. A pull-out door 18 is installed on the outside of the vertical guide rods through a sliding block. The inner side of the pull-out door 18 is in sealed contact with the outer wall of the discharge trough. A primary filter plate 19 and a high-grade filter plate 20 are inserted and installed on the upper and lower sides of the inner cavity of the processing box 7 and below the crushing rod 13. The primary filter plate 19 is located above the high-grade filter plate 20.

[0031] Its adoption is as follows Figure 1 The technical solution shown has a discharge chute set along the inclined direction of the vibrating screen plate 17, which allows larger impurities intercepted on the vibrating screen plate 17 to slide naturally into the discharge chute by their own gravity, without the need for additional power, saving energy and conforming to the energy-saving concept. The pull-out door 18 moves on the vertical guide rod by a sliding block, making it easy to open and close, and facilitating timely cleaning of impurities, avoiding the accumulation of impurities that may affect the normal operation of the screen plate.

[0032] The plug-in installation method makes the disassembly and replacement of the filter plates very convenient. When the filter plates become clogged or worn, maintenance can be carried out quickly, reducing maintenance difficulty and cost. Secondly, the primary filter plate 19 first performs preliminary filtration on the crushed material, intercepting larger particle impurities, reducing the filtration burden on the advanced filter plate 20 and extending its service life. The advanced filter plate 20 can further filter fine impurities, improve the material filtration accuracy, ensure that the material entering the hydrocyclone body 1 is purer, improve the separation efficiency and effect of the hydrocyclone, and reduce the increase in hydrocyclone energy consumption or malfunctions caused by excessive impurities.

[0033] Example 3, the present invention as follows Figures 1-5 As shown, the processing box 7 has inclined guide plates 16 installed on both sides of its inner cavity, and the inclined guide plates 16 are located below the vibrating screen plate 17; the bottom of the processing box 7 has a discharge port, and a conical hopper 21 is fixedly installed above the discharge port, with the conical opening of the conical hopper 21 communicating with the discharge port at the bottom; a support frame 22 is fixedly installed at the bottom of the drive motor 8, and the lower bent part of the support frame 22 is connected to the surface of the processing box 7 by screws.

[0034] By adopting the above technical solution, the inclined structural design can effectively guide the material falling after being screened by the vibrating screen plate 17, allowing the material to flow more concentratedly to the crushing area where the crushing rod 13 is located. This avoids the material from being scattered and accumulated in the corners of the processing box 7, thus preventing waste. At the same time, it also improves the crushing efficiency of the crushing rod 13, allowing the material to be crushed more thoroughly.

[0035] The conical bucket 21 can collect the crushed and filtered materials, allowing them to flow more smoothly and centrally into the feed pipe 2 through the discharge port. This effectively prevents material residue and accumulation at the bottom of the processing box 7, ensuring the continuity and integrity of material conveying, reducing material loss, and further improving the overall material handling efficiency of the equipment.

[0036] The working principle of this utility model is as follows: The material is fed from the top of the processing box 7. The material first falls onto the vibrating screen plate 17. Smaller particles fall through the screen holes of the vibrating screen plate 17, while larger particles move along the inclined vibrating screen plate 17 towards the discharge chute. The pull-out door 18 is opened periodically to discharge the material. The falling material enters the area where the crushing rod 13 is located under the guidance of the guide plate 16. The drive motor 8 starts and drives the drive wheel 9 to rotate. The drive wheel 9 drives the driven wheel 10 to rotate through the belt, which in turn causes the first rotating shaft 11 and the second rotating shaft 12 to rotate. The staggered crushing rods 13 crush the material. The crushed material passes through the primary filter plate 19 and the advanced filter plate 20 in sequence to remove impurities. Under the guidance of the conical bucket 21, it enters the feed pipe 2 from the discharge port and finally enters the hydrocyclone body 1 for separation. The separated material is discharged from the overflow pipe 3 and the bottom outlet 4, which can effectively prevent internal blockage.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An energy-saving hydrocyclone for power plants, comprising a hydrocyclone body (1), characterized in that: The hydrocyclone body (1) is connected to a feed pipe (2) on the left side and an overflow pipe (3) on the right side. The bottom of the hydrocyclone body (1) is provided with a bottom outlet (4). The upper end of the feed pipe (2) is connected to a processing box (7). A drive motor (8) is fixedly installed on the left side of the processing box (7). A drive wheel (9) is fixedly installed on the output shaft of the drive motor (8). A driven wheel (10) is installed on the front side of the drive wheel (9) via belt drive. A first rotating shaft (11) and a second rotating shaft (12) are respectively installed on the right side of the drive wheel (9) and the driven wheel (10). The first rotating shaft (11) and the second rotating shaft (12) both extend into the interior of the processing box (7) and are staggered on the surface with equally spaced crushing rods (13). A vibrating screen plate (17) is installed obliquely above the inner cavity of the processing box (7).

2. The energy-saving cyclone separator for power plants according to claim 1, characterized in that: A fastening ring (5) is fastened to the upper part of the hydrocyclone body (1). A reinforcing support plate (6) is welded to the left side of the fastening ring (5). The bent part at the upper end of the reinforcing support plate (6) is connected to the bottom of the processing box (7).

3. The energy-saving cyclone separator for power plants according to claim 1, characterized in that: A top cover (14) is installed on the top of the processing box (7). A sealing side plate (15) is fixedly installed on the outer ring of the bottom of the top cover (14). The rectangular diameter formed by the sealing side plates (15) is larger than the outer diameter of the upper end of the processing box (7).

4. The energy-saving cyclone separator for power plants according to claim 1, characterized in that: The back of the processing box (7) is provided with a discharge trough in the direction of inclination corresponding to the vibrating screen plate (17), and vertical guide rods are fixedly installed on both sides of the discharge trough. A pull-out door (18) is installed on the outside of the vertical guide rods through a sliding block. The inner side of the pull-out door (18) is in sealed contact with the outer wall of the discharge trough.

5. The energy-saving cyclone separator for power plants according to claim 1, characterized in that: The primary filter plate (19) and the advanced filter plate (20) are inserted and installed on the upper and lower sides of the inner cavity of the processing box (7) and below the crushing rod (13), with the primary filter plate (19) located above the advanced filter plate (20).

6. The energy-saving cyclone separator for power plants according to claim 1, characterized in that: The processing box (7) has inclined guide plates (16) installed on both sides of its inner cavity, and the inclined guide plates (16) are located below the vibrating screen plate (17).

7. The energy-saving cyclone separator for power plants according to claim 1, characterized in that: The bottom of the inner cavity of the processing box (7) is provided with a discharge port, and a conical bucket (21) is fixedly installed above the discharge port. The conical opening of the conical bucket (21) is connected to the discharge port at the bottom.

8. The energy-saving cyclone separator for power plants according to claim 1, characterized in that: The bottom of the drive motor (8) is fixedly mounted with a support frame (22), and the lower bent part of the support frame (22) is connected to the surface of the processing box (7) by screws.