Efficient cyclone separator and dust remover
By introducing an open-cell cylinder and pusher structure into the cyclone separator, the problem of high ash re-separation rate in biomass circulating fluidized bed boilers has been solved, achieving efficient separation and improved boiler performance.
Patent Information
- Application Number
- CN202520294641.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Traditional cyclone separators have low separation efficiency in biomass circulating fluidized bed boilers, which leads to reduced biomass fuel combustion efficiency and shortened service life of heating surfaces.
The structure employs an open cylinder and an open pusher body. By setting holes in the cylinder and pusher body, centrifugal force and gravity are used to separate ash particles, reducing the re-separation rate of light ash and improving separation efficiency.
It significantly improves the separation efficiency of cyclone separators, enhances boiler combustion efficiency, reduces wear and corrosion, and extends boiler service life.
Smart Images
Figure CN223800233U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of boiler, especially, relate to a high -efficient cyclone separator and dust catcher. BACKGROUND
[0002] The traditional cyclone separator used in the circulating fluidized bed boiler is composed of a vortex guide pipe, a cylinder, a cone and an ash falling pipe, after the tangential entry of the ash-containing flue gas into the cyclone cylinder, the ash particles hit the cyclone cylinder wall along the radial direction under the action of centrifugal force, and enter the cone and the vertical pipe under the action of gravity, and the vortex guide pipe is used to reduce the ash re-entrainment rate, and finally the ash is discharged into the next system.
[0003] In the biomass circulating fluidized bed boiler, the biggest feature of biomass is large ash content, and the ash density is low, the ash quality is very light, and the ash re-entrainment rate is extremely high, so the traditional cyclone separator has disadvantages in the biomass circulating fluidized bed boiler, when the ash-containing flue gas tangentially enters the cyclone cylinder, it will enter the cone under the action of gravity and centrifugal force, but due to the light weight of biomass ash, most of the ash will be mixed and taken off again with the flue gas in the cone area, which is taken away by the flue gas, thereby the separation efficiency of the cyclone separator is greatly reduced, and further the biomass fuel combustion efficiency and the service life of the heating surface are affected. UTILITY MODEL CONTENT
[0004] Therefore, the utility model aims at providing a high -efficient cyclone separator and dust catcher to solve the problems that the ash re-entrainment rate of the existing cyclone separator is greatly reduced due to the light weight of biomass ash, most of the ash will be mixed and taken off again with the flue gas in the cone area, which is taken away by the flue gas, thereby the separation efficiency of the cyclone separator is greatly reduced, and further the biomass fuel combustion efficiency and the service life of the heating surface are affected.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A high -efficient cyclone separator, including cylinder, push body, ash falling pipe, open hole cylinder and open hole push body, the cylinder is connected with the push body, the open hole cylinder is installed in the cylinder, the open hole push body is installed in the push body, the open hole push body is communicated with the open hole cylinder, and the ash falling pipe is installed at the bottom of the open hole push body.
[0007] Further, the top of the open hole cylinder is provided with a vortex guide pipe, and the side end is provided with a flue inlet.
[0008] Further, the open hole cylinder and the open hole push body are made of steel material.
[0009] Further, the distance between the inner wall of the cylinder and the outer wall of the open hole cylinder is 50mm, and the distance between the inner wall of the push body and the outer wall of the open hole push body is 50mm.
[0010] Further, the open hole cylinder and the open hole push body are provided with holes with a diameter of 10mm every 20mm.
[0011] A dust remover comprises the high-efficiency cyclone separator.
[0012] Compared with the prior art, the dust remover has the advantages that:
[0013] 1. The open hole cylinder is used for shielding protection, greatly reduces the re-entrainment rate of light ash, improves the separation efficiency of the cyclone separator, significantly improves the combustion efficiency of the boiler, reduces the abrasion and corrosion of the convection heating surface, and prolongs the service life of the boiler.
[0014] 2. The dust remover has simple structure and simple operation, and is convenient for large-scale installation and operation. BRIEF DESCRIPTION OF DRAWINGS
[0015] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. In the drawings:
[0016] Figure 1 The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. In the drawings:
[0017] In the drawings:
[0018] 1-cylinder, 2-push body, 3-vortex guide pipe, 4-ash falling pipe, 5-open hole cylinder, 6-open hole push body. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present application, but not all the embodiments.
[0020] DETAILED DESCRIPTION Figure 1 In this embodiment, a high-efficiency cyclone separator comprises a cylinder 1, a push body 2, an ash falling pipe 4, an open hole cylinder 5 and an open hole push body 6. The cylinder 1 is connected with the push body 2. The open hole cylinder 5 is installed in the cylinder 1. The open hole push body 6 is installed in the push body 2. The open hole push body 6 is in communication with the open hole cylinder 5. The ash falling pipe 4 is installed at the bottom of the open hole push body 6. The distance between the inner wall of the cylinder 1 and the outer wall of the open hole cylinder 5 is 50mm. The distance between the inner wall of the push body 2 and the outer wall of the open hole push body 6 is 50mm.
[0021] When the ash-containing flue gas enters the cyclone cylinder tangentially, the ash particles hit the open cylinder wall along the radial direction under the action of centrifugal force, and most of the ash will fall into the open hole of the cylinder 1 under the action of centrifugal force, in the open hole cylinder 5 and the traditional cylinder 1 interlayer, the ash particles enter the cone 2 and the vertical pipe under the action of gravity, and a small amount of ash that does not fall into the hole also falls into the open hole cone 6 and the vertical pipe along the open hole cylinder 5 under the action of gravity, due to the shielding protection of the open hole cylinder 5, the settled ash will not be taken away by the flue gas, which greatly reduces the re-entrainment rate of light ash, improves the separation efficiency of the cyclone separator, significantly improves the combustion efficiency of the boiler, reduces the wear and corrosion of the subsequent convection heating surface, and enhances the performance guarantee and improves the service life of the boiler.
[0022] Specific embodiment 2: see Figure 1 To illustrate this embodiment, the open hole cylinder 5 is provided with a vortex guide pipe 3 at the top and a flue inlet at the side end, the vortex guide pipe 3 guides the entering airflow into rotational motion to form stable vortex flow, which is the basis for separating particles, through the rotational motion, the vortex guide pipe 3 increases the centrifugal force of the airflow and particles, so that the particles move to the wall, facilitating separation.
[0023] Specific embodiment 3: see Figure 1 To illustrate this embodiment, the open hole cylinder 5 and the open hole cone 6 are formed by rolling steel plates.
[0024] Specific embodiment 4: see Figure 1 To illustrate this embodiment, the open hole cylinder 5 and the open hole cone 6 are provided with holes with a diameter of Φ10 every 20mm.
[0025] Specific embodiment 5: a dust collector comprising a high-efficiency cyclone separator that can be applied to dust collectors in various fields.
[0026] The above disclosed specific embodiments of the utility model are only used to help explain the utility model. The specific embodiments do not describe all the details, nor limit the utility model to the specific embodiments. According to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model.
Claims
1. A high efficiency cyclonic separator characterised in that: It comprises a cylinder (1), a push body (2), an ash falling pipe (4), an open cylinder (5) and an open push body (6), the cylinder (1) is connected with the push body (2), the open cylinder (5) is installed in the cylinder (1), the open push body (6) is installed in the push body (2), the open push body (6) is communicated with the open cylinder (5), and the ash falling pipe (4) is installed at the bottom of the open push body (6).
2. A high efficiency cyclonic separator according to claim 1 wherein: A vortex guide pipe (3) is installed at the top of the open cylinder (5), and a flue inlet is installed at the side end.
3. A high efficiency cyclonic separator according to claim 1 wherein: The open cylinder (5) and the open push body (6) are made of steel.
4. A high efficiency cyclonic separator according to claim 1 wherein: The distance between the inner wall of the cylinder (1) and the outer wall of the open cylinder (5) is 50 mm, and the distance between the inner wall of the push body (2) and the outer wall of the open push body (6) is 50 mm.
5. A high efficiency cyclonic separator according to claim 1 wherein: Holes with a diameter of Φ10 are arranged on the open cylinder (5) and the open push body (6) every 20 mm.
6. A dust extractor characterised in that: It comprises the high-efficiency cyclone separator in any one of claims 1-5.