Cyclone separator
The cyclone separator, which uses a double-cone design and a guide flange to control the airflow path, solves the problem of poor separation of fine particles in existing technologies and achieves a more efficient particle separation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI PETROCHEM EQUIP
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-21
AI Technical Summary
Existing cyclone separators are highly efficient at handling large particles, but they are difficult to separate fine particles effectively due to insufficient centrifugal force, resulting in poor separation effect and low separation efficiency.
The device employs a dual-cone design. The first cone has a larger cone angle for separating large particles, while the second cone has a smaller cone angle for further separating fine particles. Combined with the design of the guide flange and through holes, the airflow path is controlled to ensure that fine particles are fully separated by centrifugation.
It achieves secondary separation of fine and large particles, improves the overall separation efficiency of the cyclone separator, ensures stable airflow, avoids particle back-mixing, and enhances the separation effect.
Smart Images
Figure CN224142504U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas-solid separation equipment technology, and in particular to a cyclone separator. Background Technology
[0002] Existing cyclone separators include a volute, a cylinder, a cone, and an exhaust pipe. The exhaust pipe passes through the top of the volute and extends into the cylinder. Gas containing particles enters the volute through an inlet extending spirally from it. The gas flows along the inner wall of the volute and is guided to form a rotating vortex. It then flows spirally downwards along the cylinder towards the cone. Under the action of centrifugal force, the particles are thrown against the inner walls of the cylinder and cone. The particles lose inertia and fall along the wall, landing in the dust collection hopper at the bottom of the cone. As the gas descends within the cone, it continuously flows towards the center, forming a centripetal radial airflow. The exhaust pipe is located at the top of the volute, creating a pressure difference with the inside of the separator. This causes the radial airflow in the center to spiral upwards and enter the exhaust pipe before being discharged. The single cone design is highly efficient in handling large particles, but small particles are difficult to separate effectively due to insufficient time for centrifugal force treatment, resulting in poor separation effect and low separation efficiency for fine particles.
[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model discloses a cyclone separator to solve the problem that while a single cone design is efficient in handling large particles, it is difficult to effectively separate fine particles due to insufficient centrifugal force, resulting in poor separation effect and low separation efficiency for fine particles.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A cyclone separator, characterized in that it comprises:
[0007] First cylinder;
[0008] A volute housing is connected to the upper end of the first cylinder and communicates with the interior of the first cylinder. An air inlet extends spirally from the front side of the volute housing, and the air inlet direction is perpendicular to the height direction of the first cylinder.
[0009] The first cone is connected to the lower end of the first cylinder and communicates with the interior of the first cylinder; the lower end of the first cone is provided with an annular guide flange that is inclined downward.
[0010] The second cone is connected to the lower end of the first cone and communicates with the interior of the first cone. The cone angle of the second cone is smaller than that of the first cone. A dust collection hopper is provided at the lower end of the second cone.
[0011] An exhaust pipe is provided at the upper end of the volute housing, with an opening at the lower end and an exhaust port at the upper end. The lower end of the exhaust pipe passes through the volute housing and extends into the first cylinder.
[0012] A further technical solution is that the lower end of the first cone is provided with a first flange, the upper end of the second cone is provided with a second flange, and the outer side of the first flange is bolted to the outer side of the second flange, so that the lower end of the first cone is connected to the upper end of the second cone.
[0013] A further technical solution is that an annular groove is provided circumferentially at the lower outer end of the first flange, and an annular protrusion is provided circumferentially at the upper outer end of the second flange. The protrusion is engaged in the groove, and an annular sealing gasket is provided in the groove. The annular sealing gasket seals and contacts the bottom of the groove and the upper end of the protrusion.
[0014] A further technical solution is that the flow guiding flange is located on the inner side of the first flange, the flow guiding flange is inclined downward at 45°, and the flow guiding flange is integrally formed with the first flange.
[0015] A further technical solution is that the guide flange is provided with a number of inclined through holes spaced apart circumferentially, and the central axis of the through holes is the same as the spiral direction of the gas in the first cone.
[0016] A further technical solution is that the dust collection hopper includes a second cylinder, a third cone cylinder, and a third cylinder. The upper end of the second cylinder is connected to the outer side of the lower end of the second cone cylinder and communicates with the interior of the first cylinder. The third cone cylinder is connected to the lower end of the second cylinder and communicates with the interior of the second cylinder. The third cylinder is connected to the lower end of the third cone cylinder and communicates with the interior of the third cone cylinder. A dust discharge port is provided at the lower end of the third cylinder.
[0017] A further technical solution is that the volute housing also includes a first flared opening, the rear side of the first flared opening is a circular opening, the front side of the first flared opening is a square opening, and the rear side of the first flared opening is connected to the air inlet on the front side of the volute housing.
[0018] A further technical solution is that the exhaust pipe also includes a second flared opening, the front side of which is a circular opening and the rear side of which is a square opening, and the front side of which is connected to the exhaust port on the rear side of the exhaust pipe.
[0019] A further technical solution is that a number of ear seats are provided at intervals on the outer side of the first cylinder.
[0020] The beneficial effects of this utility model embodiment are as follows:
[0021] (I) A cyclone separator includes a first cylinder, a volute casing, a first cone, a second cone, and an exhaust pipe. Gas containing particles enters the volute casing through an inlet extending spirally from the volute casing. The gas flows along the inner wall of the volute casing and is guided to form a rotating vortex. It then flows spirally downwards along the first cylinder towards the first cone. In the first cone with a larger cone angle, the spiral surface of the downward-spiraling airflow contracts sharply, resulting in a faster gas spiral speed. Coarse particles are thrown towards the inner wall of the first cone under centrifugal force. Losing inertia, the coarse particles fall along the wall into the dust collection hopper. The gas then enters the second cone with a smaller cone angle. The spiral surface of the downward-spiraling airflow contracts gently, and the gas spiral speed is relatively slow. Fine particles can be subjected to centrifugal force for a longer period of time, causing them to be thrown towards the inner wall of the second cone. The fine particles also lose inertia and fall down the wall to the dust collection hopper. The treated gas continuously flows towards the center during the descent and spirals upward into the exhaust pipe for discharge. The series design of the two cones allows the cyclone separator to better achieve secondary separation of particles. Larger particles are separated in the first cone, while smaller particles are further separated through the second cone, improving the overall efficiency of the separator.
[0022] At the same time, the guide flange of the first cone forces the main swirling flow to deflect downwards, so that after the airflow passes through the spiral flow of the first cone, it maintains a suitable direction of motion and enters the second cone, effectively controlling the path of the airflow and ensuring that the airflow continues to flow along a suitable trajectory, suppressing particle backmixing caused by insufficient centrifugal force.
[0023] (ii) Furthermore, the guide flange is circumferentially spaced with several inclined through holes. The central axis of the through hole near the front of the first cone tilts to the left, the central axis of the through hole near the left side of the first cone tilts to the rear, the central axis of the through hole near the rear of the first cone tilts to the right, and the central axis of the through hole near the right end of the first cone tilts forward. The through holes allow a small portion of the airflow to leak from the first cone into the outer spiral region inside the second cone, balancing the pressure difference between the outer and inner spiral regions inside the second cone. Simultaneously, the central axis of the through holes tilts along the direction of the internal airflow spiral, preventing turbulence or changes in the direction of airflow passing through the through holes. Guided by the through holes, the airflow can flow smoothly, avoiding abnormal bending or instability. Attached Figure Description
[0024] Figure 1 This is a front view structural diagram of the cyclone separator of this utility model.
[0025] Figure 2 This is a top view of the volute casing in the cyclone separator of this utility model.
[0026] Figure 3 This is a top view of the cyclone separator of this utility model.
[0027] Figure 4 for Figure 1 Enlarged view at point A.
[0028] Figure 5 for Figure 1 Enlarged view at point B.
[0029] Figure 6 This is a top view of the guide flange in the cyclone separator of this utility model.
[0030] In the picture:
[0031] 100, First cylinder; 200, volute casing; 201, air inlet; 202, first flared mouth; 300, first cone; 301, first flange; 302, groove; 400, second cone; 401, second flange; 402, protrusion; 500, exhaust pipe; 501, exhaust port; 502, opening; 503, second flared mouth; 600, dust collection hopper; 601, powder discharge port; 610, second cylinder; 620, third cone; 630, third cylinder; 700, annular sealing gasket; 800, guide flange; 801, through hole; 900, lug. Detailed Implementation
[0032] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0034] Example:
[0035] Figure 1 This is a front view structural diagram of the cyclone separator of this utility model. Figure 1 As shown, a cyclone separator includes a first cylinder 100, a volute housing 200, a first cone 300, a second cone 400, and an exhaust pipe 500.
[0036] Figure 2 This is a top view of the volute casing in the cyclone separator of this utility model. Figures 1-2 The volute housing 200 shown is connected to the upper end of the first cylinder 100 and communicates with the interior of the first cylinder 100. An air inlet 201 extends spirally from the front side of the volute housing 200, and the air intake direction of the air inlet 201 is perpendicular to the height direction of the first cylinder 100. For example, the volute housing 200 also includes a first flared opening 202, the rear side of which is circular, and the front side of which is square. The rear side of the first flared opening 202 connects to the air inlet 201 on the front side of the volute housing 200.
[0037] like Figure 1 As shown, a first conical cylinder 300 is connected to the lower end of a first cylindrical cylinder 100 and communicates with the interior of the first cylindrical cylinder 100. A second conical cylinder 400 is connected to the lower end of the first conical cylinder 300 and communicates with the interior of the first conical cylinder 300. For example, a first flange 301 is provided at the lower end of the first conical cylinder 300, and a second flange 401 is provided at the upper end of the second conical cylinder 400. The outer side of the first flange 301 is bolted to the outer side of the second flange 401, so that the lower end of the first conical cylinder 300 is connected to the upper end of the second conical cylinder 400. The cone angle of the second conical cylinder 400 is smaller than that of the first conical cylinder 300. Specifically, the cone angle of the first conical cylinder 300 is 60°, and the cone angle of the second conical cylinder 400 is 30°. An annular guide flange 800 is provided inwardly at the lower end of the first conical cylinder 300, and the guide flange 800 is inclined downwards. For example, a guide flange 800 is disposed on the inner side of the first flange 301, the guide flange 800 is inclined downward at 45°, and the guide flange 800 is integrally formed with the first flange 301. A dust collection hopper 600 is provided at the lower end of the second cone 400. For example, the dust collection hopper 600 includes a second cylinder 610, a third cone 620, and a third cylinder 630. The upper end of the second cylinder 610 is connected to the outer side of the lower end of the second cone 400 and communicates with the interior of the first cylinder 100; the third cone 620 is connected to the lower end of the second cylinder 610 and communicates with the interior of the second cylinder 610; the third cylinder 630 is connected to the lower end of the third cone 620 and communicates with the interior of the third cone 620, and a powder discharge port 601 is provided at the lower end of the third cylinder 630.
[0038] Figure 3 This is a top view of the cyclone separator of this utility model. Figure 1 and Figure 3 As shown, an exhaust pipe 500 is located at the upper end of the volute housing 200. An opening 502 is formed at the lower end of the exhaust pipe 500, and an exhaust port 501 is formed at the upper end. The lower end of the exhaust pipe 500 passes through the volute housing 200 and extends into the first cylinder 100. For example, the exhaust pipe 500 also includes a second flared opening 503. The front side of the second flared opening 503 is circular, and the rear side is square. The front side of the second flared opening 503 connects to the exhaust port 501 at the rear side of the exhaust pipe 500.
[0039] Figure 4 for Figure 1 A magnified view at point A. (See image below.) Figure 1 and Figure 4 As shown, furthermore, the lower outer side of the first flange 301 has an annular groove 302 circumferentially formed, and the upper outer side of the second flange 401 has an annular protrusion 402 circumferentially formed. The protrusion 402 is engaged within the groove 302, and an annular sealing gasket 700 is provided within the groove 302. The annular sealing gasket 700 seals against the bottom of the groove 302 and the upper end of the protrusion 402. The structural design of the protrusion 402 and the groove 302 makes the connection between the flanges more secure. The protrusion 402, by engaging within the groove 302, increases the stability of the joint between the two flanges, preventing loosening due to vibration or pressure changes. At the same time, the annular sealing gasket 700 ensures the sealing between the flanges, preventing air leakage at the flange connection.
[0040] Figure 5 for Figure 1 Enlarged view at point B. Figure 6 This is a top view schematic diagram of the guide flange in the cyclone separator of this utility model. Figure 1 , Figure 5 and Figure 6 As shown, furthermore, the guide flange 800 is circumferentially spaced with several inclined through holes 801, the central axis of which is the same as the spiral direction of the gas inside the first cone 300. The through holes 801 allow a small portion of the airflow to leak from the first cone 300 into the outer spiral region of the airflow inside the second cone 400, balancing the pressure difference between the outer and inner spiral regions of the airflow inside the second cone 400. Simultaneously, the central axis of the through holes 801 is inclined along the direction of the internal airflow spiral, preventing turbulence or changes in the direction of airflow passing through the through holes 801. Guided by the through holes 801, the airflow can flow smoothly, avoiding abnormal bending or instability.
[0041] like Figures 1-3As shown, furthermore, the outer side of the first cylinder 100 is provided with a plurality of lugs 900 at intervals. The lugs 900 serve as connection points to fix the first cylinder 100 to other components or supports of the equipment, ensuring that the entire device does not shift or shake during operation, thereby enhancing the stability of the equipment and avoiding equipment failure or safety hazards caused by vibration or instability.
[0042] In operation, this embodiment is as follows:
[0043] Gas containing particles enters the volute 200 through the first flared opening 202. The gas flows along the inner wall of the volute 200, guided to form a rotating vortex, and then spirals downwards along the first cylinder 100 towards the first cone 300. In the first cone 300, with its larger cone angle, the spiral surface of the downward-spiraling airflow contracts sharply, resulting in a faster gas spiral speed. Coarse particles are thrown towards the inner wall of the first cone 300 under centrifugal force. Losing inertia, the coarse particles fall along the wall into the third cylinder 630. The gas passes through the guide flange 800, with a small portion entering the second cone 400 through the through-hole 801, and most entering along the inclined surface of the guide flange 800. In the second cone 400, with its smaller cone angle, the downward-spiraling airflow... The surface contraction is gentle, the gas spiral speed is slow, and the fine particles can be subjected to centrifugal force for a longer time. Under the action of centrifugal force, the fine particles are thrown towards the inner wall of the second cone 400. The fine particles also lose inertia and fall down the wall into the third cylinder 630. The coarse particles and fine particles fall down along the second cylinder 610, the third cone 620 and the third cylinder 630 in sequence to be discharged from the powder discharge port 601. The gas after gas-solid separation flows into the center continuously during the descent in the second cone 400, forming a centripetal radial airflow. The exhaust pipe 500 is set at the top of the volute 200, and a pressure difference is generated with the inside of the separator, which causes the radial airflow in the center to spiral upward and enter the exhaust pipe 500 from the opening 502 and be discharged from the second flared port 503.
[0044] In this embodiment, the series design of the two cones enables the cyclone separator to achieve better secondary separation of particles. Larger particles are separated in the first cone, while smaller particles are further separated through the second cone, thus improving the overall efficiency of the separator.
[0045] At the same time, the guide flange 800 of the first cone 300 forces the main swirling flow to deflect downward, so that after the airflow passes through the spiral flow of the first cone 300, it maintains a suitable direction of motion and enters the second cone 400, effectively controlling the path of the airflow and ensuring that the airflow continues to flow along a suitable trajectory, suppressing particle backmixing caused by insufficient centrifugal force.
[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0047] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A cyclonic separator characterised in that, include: First cylinder (100); The volute housing (200) is connected to the upper end of the first cylinder (100) and communicates with the interior of the first cylinder (100). The front side of the volute housing (200) has a spirally extended air inlet (201), and the air inlet (201) is perpendicular to the height direction of the first cylinder (100). The first cone (300) is connected to the lower end of the first cylinder (100) and communicates with the interior of the first cylinder (100); the lower end of the first cone (300) is provided with an annular flow guide flange (800) on the inner side, and the flow guide flange (800) is inclined downward. The second cone (400) is connected to the lower end of the first cone (300) and communicates with the interior of the first cone (300). The cone angle of the second cone (400) is smaller than that of the first cone (300). A dust collection hopper (600) is provided at the lower end of the second cone (400). An exhaust pipe (500) is provided at the upper end of the volute housing (200). The lower end of the exhaust pipe (500) has an opening (502), and the upper end of the exhaust pipe (500) has an exhaust port (501). The lower end of the exhaust pipe (500) passes through the volute housing (200) and extends into the first cylinder (100).
2. The cyclone separator of claim 1, wherein: The lower end of the first cone (300) is provided with a first flange (301), and the upper end of the second cone (400) is provided with a second flange (401). The outer side of the first flange (301) is bolted to the outer side of the second flange (401), so that the lower end of the first cone (300) is connected to the upper end of the second cone (400).
3. The cyclone separator of claim 2, wherein: The lower outer side of the first flange (301) is provided with an annular groove (302), and the upper outer side of the second flange (401) is provided with an annular protrusion (402). The protrusion (402) is engaged in the groove (302). An annular sealing gasket (700) is provided in the groove (302). The annular sealing gasket (700) seals against the bottom of the groove (302) and the upper end of the protrusion (402).
4. The cyclone separator of claim 3, wherein: The flow guide flange (800) is located on the inner side of the first flange (301), the flow guide flange (800) is inclined downward at 45°, and the flow guide flange (800) is integrally formed with the first flange (301).
5. The cyclone separator of claim 1, wherein: The guide flange (800) is provided with a plurality of inclined through holes (801) spaced apart around the circumference, and the central axis of the through holes (801) is the same as the spiral direction of the gas in the first cone (300).
6. The cyclone separator of claim 1, wherein: The dust collection hopper (600) includes a second cylinder (610), a third cone (620), and a third cylinder (630). The upper end of the second cylinder (610) is connected to the outer side of the lower end of the second cone (400) and communicates with the interior of the first cylinder (100). The third cone (620) is connected to the lower end of the second cylinder (610) and communicates with the interior of the second cylinder (610). The third cylinder (630) is connected to the lower end of the third cone (620) and communicates with the interior of the third cone (620). A dust discharge port (601) is provided at the lower end of the third cylinder (630).
7. The cyclone separator of claim 1, wherein: The volute housing (200) further includes a first horn (202), the rear side of which is a circular opening and the front side of which is a square opening. The rear side of the first horn (202) is connected to the air inlet (201) on the front side of the volute housing (200).
8. The cyclone separator of claim 1, wherein: The exhaust pipe (500) also includes a second flared opening (503), the front side of the second flared opening (503) is a circular opening, the rear side of the second flared opening (503) is a square opening, and the front side of the second flared opening (503) is connected to the exhaust port (501) on the rear side of the exhaust pipe (500).
9. The cyclone separator of claim 1, wherein: The outer side of the first cylinder (100) is provided with a plurality of ear seats (900) at intervals.