A multi-stage filtering type cyclone separator
By incorporating a multi-stage filtration structure within the cyclone separator, the problem of insufficient separation by a single cyclone separator is solved, achieving efficient and low-cost solid particle separation and reducing the number of devices and floor space requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GAODA MACHINERY
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-05
AI Technical Summary
In existing technologies, the separation of fixed particles in the airflow by a single cyclone separator is insufficient, requiring multiple cyclone separators to be connected in series, which results in a large footprint and high cost.
A multi-stage filtration cyclone separator is designed. By setting multiple partitions in the filter box to divide its space into an air inlet chamber, an air passage chamber, and an air outlet chamber, and setting filter components in each chamber, multi-stage filtration is achieved, avoiding the series connection of cyclone separators.
This achieves improved separation efficiency and reduced costs without increasing floor space.
Smart Images

Figure CN224321188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a multi-stage filtration cyclone separator, belonging to the technical field of cyclone separators. Background Technology
[0002] A cyclone separator is a device that uses inertial centrifugal force to separate impurities (solid particles or liquid droplets) from an airflow. It has a simple structure, low cost, wide applicability, and high separation efficiency, and remains one of the most common separation devices in chemical, mining, metallurgical, machinery, and light industries. In existing technologies, a single cyclone separator often fails to adequately separate fixed particles from the airflow, requiring multiple cyclone separators to be connected in series, resulting in a large footprint and high cost. Therefore, this invention proposes a multi-stage filtration-type cyclone separator. Utility Model Content
[0003] Based on the above background, the purpose of this utility model is to provide a multi-stage filtration cyclone separator to solve the problems in the background technology.
[0004] This utility model provides the following technical solution:
[0005] A multi-stage filtration cyclone separator includes a volute. An air outlet is located at the center of the top of the volute. A right-angle bend is connected to the air outlet via a flange. A filter box is connected to the other end of the right-angle bend via a flange. The filter box contains multiple partitions, each with an air passageway. The air passageways on the partitions are staggered vertically, dividing the internal space of the filter box into an inlet chamber, an air passageway, and an outlet chamber, arranged sequentially from left to right. The filter box has an opening at its front end, and a cover plate is detachably fixed to the opening via bolts. First filter components are fixed to both sides of the end face of the cover plate near the interior of the filter box via bolts. The first filter components are vertically arranged in the inlet and outlet chambers, respectively. Multiple sets of second filter components are positioned between the first filter components on the cover plate, and these sets are horizontally arranged in the air passageway.
[0006] Preferably, the first filter assembly includes a first fixing frame, and a set of first fixing ears are provided on both sides of the first fixing frame near the cover plate. The first fixing ears are fixedly connected to the cover plate by fixing bolts. A first filter element is provided inside the first fixing frame, and a first sealing gasket is provided on the contact surface between the first fixing frame and the inner wall of the filter box.
[0007] Preferably, the second filter assembly includes a second fixing frame, and second fixing ears are provided on both the upper and lower sides of the second fixing frame near the cover plate. The second fixing ears are fixedly connected to the cover plate by fixing bolts. A second filter element is provided inside the second fixing frame, and a second sealing gasket is provided on the contact surfaces of the second fixing frame with the partition and the inner wall of the filter box.
[0008] Preferably, the lower flange of the volute is connected to a lower cone, and the bottom of the lower cone is provided with a dust discharge port.
[0009] Preferably, the outer cylindrical surface of the volute is provided with an air inlet, which is connected to the inside of the volute.
[0010] Compared with the prior art, the present invention has the following advantages:
[0011] This utility model discloses a multi-stage filtration cyclone separator. By setting a filter box and installing multiple partitions inside the filter box, the internal space of the filter box is divided into an air inlet chamber, an air passage chamber, and an air outlet chamber. Utilizing a first filter component in the air inlet chamber and an air outlet chamber, and a second filter component in the air passage chamber, the gas after impurities are separated by the cyclone separator can undergo multi-stage filtration when it enters the filter box. This eliminates the need for multiple cyclone separators connected in series, resulting in a small footprint and low cost. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0014] Figure 2 This is a top view of the present invention;
[0015] Figure 3 This is a utility model Figure 2 Sectional view from position AA;
[0016] Figure 4 This is a utility model Figure 3 Enlarged schematic diagram of the structure of section A in the middle.
[0017] In the diagram: 1. Volute; 2. Air outlet; 3. Right-angle bend; 4. Filter box; 5. Partition; 6. Air inlet; 7. Air inlet; 8. Air outlet; 9. Air outlet; 10. Cover plate; 11. First fixing frame; 12. First fixing ear plate; 13. First filter element; 14. First sealing gasket; 15. Second fixing frame; 16. Second fixing ear plate; 17. Second filter element; 18. Second sealing gasket; 19. Lower cone; 20. Dust exhaust port; 21. Air inlet. Detailed Implementation
[0018] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.
[0019] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.
[0021] like Figures 1-4As shown, a multi-stage filtration cyclone separator includes a volute 1. An air outlet 2 is located at the center of the top of the volute 1. A right-angle bend 3 is connected to the air outlet 2 via a flange. A filter box 4 is connected to the other end of the right-angle bend 3 via a flange. The filter box 4 contains multiple partitions 5, each with an air passage 6. The air passages 6 on the partitions 5 are staggered vertically, dividing the internal space of the filter box 4 into an inlet chamber 7, an air passage chamber 8, and an outlet chamber 9. The inlet chamber 7 and the air passage chamber 8... The air inlet chamber 7 and the air outlet chamber 9 are arranged sequentially from left to right. The front end of the filter box 4 is open. The front end of the filter box 4 is detachably and fixedly connected to the cover plate 10 by fixing bolts. The two sides of the end face of the cover plate 10 near the inside of the filter box 4 are fixedly connected to the first filter components by bolts. The first filter components are respectively vertically arranged in the air inlet chamber 7 and the air outlet chamber 9. There are multiple sets of second filter components between the first filter components on the cover plate 10. The multiple sets of second filter components are respectively horizontally arranged in the air passage chamber 8.
[0022] In the above technical solution, this utility model sets up a filter box 4, and sets up multiple partitions 5 inside the filter box 4. The partitions 5 divide the internal space of the filter box 4 into an air inlet chamber 7, an air passage chamber 8 and an air outlet chamber 9. Using the first filter components in the air inlet chamber 7 and the air outlet chamber 9 and the second filter components in the air passage chamber 8, the gas after the impurities are separated by the cyclone separator enters the filter box 4 and can be filtered in multiple stages. There is no need for multiple cyclone separators to be connected in series, the footprint is small and the cost is low.
[0023] In this invention, the first filter assembly includes a first fixing frame 11. A set of first fixing lugs 12 are provided on both sides of the first fixing frame 11 near the cover plate 10. The first fixing lugs 12 are fixedly connected to the cover plate 10 by fixing bolts. A first filter element 13 is provided inside the first fixing frame 11. A first sealing gasket 14 is provided on the contact surface between the first fixing frame 11 and the inner wall of the filter box 4. By providing the first sealing gasket 14 on the contact surface between the first fixing frame 11 and the inner wall of the filter box 4, air leakage between the first fixing frame 11 and the inner wall of the filter box 4 can be prevented, thus avoiding affecting the filtration effect of the first filter element 13.
[0024] In this invention, the second filter assembly includes a second fixing frame 15. Second fixing ears 16 are provided on both the upper and lower sides of the second fixing frame 15 near the cover plate 10. The second fixing ears 16 are fixedly connected to the cover plate 10 by fixing bolts. A second filter element 17 is provided inside the second fixing frame 15. Second sealing gaskets 18 are provided on the contact surfaces of the second fixing frame 15 with the partition plate 5 and the inner wall of the filter box 4. By providing second sealing gaskets 18 on the contact surfaces of the second fixing frame 15 with the partition plate 5 and the inner wall of the filter box 4, air leakage in the gaps can be prevented, thus avoiding affecting the filtration effect of the second filter element 17.
[0025] In this utility model, the lower flange of the volute 1 is connected to a lower cone 19, and the bottom of the lower cone is provided with a dust discharge port 20.
[0026] In this utility model, the outer cylindrical surface of the volute 1 is provided with an air inlet 21, and the air inlet 21 is connected to the inside of the volute 1.
[0027] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A multi-stage filtration cyclone separator, characterized in that: The system includes a volute (1), with an air outlet (2) at the center of its top. A right-angle bend (3) is connected to the air outlet (2) via a flange. A filter box (4) is connected to the other end of the right-angle bend (3) via a flange. The filter box (4) contains multiple partitions (5), each of which has an air passage (6). The air passages (6) on the partitions (5) are staggered vertically. The partitions (5) divide the internal space of the filter box (4) into an air inlet chamber (7), an air passage chamber (8), and an air outlet chamber (9). 8) and the air outlet cavity (9) are distributed from left to right. The front end of the filter box (4) is open. The front end of the filter box (4) is detachably fixed to a cover plate (10) by fixing bolts. The two sides of the end face of the cover plate (10) near the inside of the filter box (4) are fixedly connected to the first filter components by bolts. The first filter components are respectively vertically arranged in the air inlet cavity (7) and the air outlet cavity (9). There are multiple sets of second filter components between the first filter components on the cover plate (10). The multiple sets of second filter components are respectively horizontally arranged in the air passage cavity (8).
2. The multi-stage filtration cyclone separator according to claim 1, characterized in that: The first filter assembly includes a first fixed frame (11). A set of first fixed ear plates (12) are provided on both sides of the first fixed frame (11) near the cover plate (10). The first fixed ear plates (12) are fixedly connected to the cover plate (10) by fixing bolts. A first filter element (13) is provided inside the first fixed frame (11). A first sealing gasket (14) is provided on the contact surface between the first fixed frame (11) and the inner wall of the filter box (4).
3. The multi-stage filtration cyclone separator according to claim 1, characterized in that: The second filter assembly includes a second fixed frame (15). The second fixed frame (15) has second fixed ear plates (16) on both the upper and lower sides near the cover plate (10). The second fixed ear plates (16) are fixedly connected to the cover plate (10) by fixing bolts. The second fixed frame (15) has a second filter element (17) inside. The second fixed frame (15) has a second sealing gasket (18) on the contact surface with the partition plate (5) and the inner wall of the filter box (4).
4. A multi-stage filtration cyclone separator according to claim 1, characterized in that: The lower flange of the volute (1) is connected to a lower cone (19), and the bottom of the lower cone is provided with a dust discharge port (20).
5. A multi-stage filtration cyclone separator according to claim 4, characterized in that: The outer cylindrical surface of the volute (1) is provided with an air inlet (21), which is connected to the inside of the volute (1).