A flow-guided high-efficiency low-resistance cyclone dust collector

Abstract

This utility model relates to the field of cyclone dust collector technology, specifically to a guide-type high-efficiency low-resistance cyclone dust collector, including a cylinder. An air outlet and a dust outlet are respectively provided at the top and bottom of the cylinder. A separation device is fixedly connected to the bottom of the air outlet. The separation device includes a connecting cylinder and a bottom cylinder fixed inside the connecting cylinder. An inner plate is fixed inside the bottom cylinder. The connecting cylinder and the bottom cylinder are fixedly connected by side plates. The spiral inner plate (equidistantly distributed array) on the inner side of the bottom cylinder can guide the airflow to form an "orderly spiral motion," extending the residence time of the airflow in the separation area. The spiral guidance enhances the centrifugal force of the airflow, making it easier for fine particles to be thrown towards the cylinder wall. The inclined side plates (equidistantly fixed array) between the connecting cylinder and the bottom cylinder can perform "secondary rectification" of the rising airflow, intercepting fine dust escaping with the airflow. The combination of these two improves the overall dust removal efficiency and the separation efficiency of fine particles, effectively meeting stringent environmental emission standards.

Description

Technical Field

[0001] This utility model relates to the field of cyclone dust collector technology, specifically to a flow-guided high-efficiency low-resistance cyclone dust collector. Background Technology

[0002] In the fields of industrial production, energy utilization, and air pollution control, dust pollution control has always been a core aspect of ensuring environmental quality and production safety. Cyclone dust collectors, with their advantages of simple structure, low cost, and convenient maintenance, have become commonly used equipment for dust separation and are widely applied in boiler flue gas purification and material recovery in industries such as power, metallurgy, chemicals, and building materials.

[0003] However, traditional cyclone dust collectors suffer from two major pain points in practical applications, making it difficult to meet current environmental protection demands for high efficiency and low consumption: Firstly, there is an inherent contradiction between dust removal efficiency and airflow resistance. Traditional equipment often adopts a single tangential air inlet and a straight-cylinder separation structure. When the airflow rotates inside the cylinder, it easily generates turbulent vortices, especially at the junction of the top of the cylinder and the outlet. Some fine dust particles can easily escape with the rising airflow, resulting in a separation efficiency of less than 85% for fine particles with a diameter of less than 10μm. At the same time, in order to increase the rotation intensity and enhance the separation effect, it is often necessary to narrow the airflow channel, which leads to a significant increase in equipment resistance (usually the resistance loss exceeds 1500Pa). This not only increases the energy consumption burden of the induced draft fan but also easily causes wear and tear on equipment components, shortening their service life.

[0004] On the other hand, insufficient airflow organization restricts performance improvement. Traditional equipment often uses tangential air intake from one or both sides, which easily leads to "eccentric rotation" after the airflow enters the cylinder, resulting in increased local wear on the inner wall of the cylinder. At the same time, the effective utilization space of the separation area is reduced, further reducing dust removal efficiency. In addition, the dust discharge structure of traditional dust collectors is mostly a straight cylinder or a simple cone shape. During the falling process, dust is easily re-entrained by the rising airflow, forming a "back-mixing" phenomenon, which seriously affects the final dust removal effect. Utility Model Content

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a flow-guided high-efficiency low-resistance cyclone dust collector, which can effectively solve the problems in the existing technology.

[0007] Technical solution

[0008] This utility model provides a flow-guided high-efficiency low-resistance cyclone dust collector, including a cylinder. The top and bottom of the cylinder are respectively provided with an air outlet and a dust outlet, and a separation device is fixedly connected to the bottom of the air outlet. The separation device includes a connecting cylinder and a bottom cylinder fixed inside the connecting cylinder. An inner plate is fixed inside the bottom cylinder, and the connecting cylinder and the bottom cylinder are fixedly connected by a side plate.

[0009] Furthermore, a ring of air inlets is provided on one side of the cylinder, and the air inlets are wrapped around the top of the cylinder.

[0010] Furthermore, the side plates are inclined structures and are fixed to the outer top of the bottom cylinder in an equidistant array.

[0011] Furthermore, the inner plates are spirally distributed and fixed on the inner wall of the bottom cylinder, and multiple sets of inner plates are equidistantly arranged.

[0012] Furthermore, both the bottom of the bottom cylinder and the bottom of the cylinder body are hollow funnel-shaped, wider at the top and narrower at the bottom.

[0013] Furthermore, the top end of the connecting cylinder is connected and fixed to the air outlet via a flange.

[0014] Beneficial effects

[0015] In this invention, the spiral inner plate (equidistantly distributed array) on the inner side of the bottom cylinder can guide the airflow to form an "orderly spiral motion," prolonging the residence time of the airflow in the separation area. At the same time, the spiral guidance enhances the centrifugal force of the airflow, making it easier for fine particles to be thrown towards the cylinder wall. The inclined side plate (equidistantly fixed array) between the connecting cylinder and the bottom cylinder can perform "secondary rectification" on the rising airflow, intercepting the fine dust that escapes with the airflow. Based on the synergistic design of the spiral inner plate and the inclined side plate, the two work together to improve the overall dust removal efficiency and the fine particle separation efficiency, effectively meeting the stringent environmental emission standards.

[0016] The inclined side plates have a "flow guiding and rectification" effect: uniform airflow distribution and orderly movement trajectory; the winding air intake and spiral guide design avoid local impact wear on the cylinder wall by the airflow; the equidistant array distribution of the inclined side plates and inner plates makes the force more uniform and reduces local wear of components; at the same time, dust is less likely to accumulate in the separation device, reducing the risk of internal blockage and corrosion; compared with the "disorderly interception" of traditional equipment, the inclined side plates can guide the airflow along a preset path, reducing the collision and friction between the airflow and the components, while the spiral inner plate avoids the "dead zone stagnation" of airflow in the cylinder, reducing local airflow resistance; compared with traditional equipment, the power consumption of the induced draft fan is reduced, and the annual energy cost is reduced. Attached Figure Description

[0017] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 3 This is a cross-sectional front view of the present invention;

[0021] Figure 4 This is an exploded view of the separation device in this utility model;

[0022] Figure 5 This is a cross-sectional view of the separation device in this utility model.

[0023] The labels in the diagram represent: 1. Cylinder body; 2. Air inlet; 3. Air outlet; 4. Dust outlet; 5. Separation device; 51. Connecting cylinder; 52. Bottom cylinder; 53. Inner plate; 54. Side plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example: A flow-guided high-efficiency, low-resistance cyclone dust collector, as shown in the attached diagram. Figure 1 - Appendix Figure 5 The device includes a cylinder 1, with an air outlet 3 and a dust outlet 4 respectively provided at the top and bottom of the cylinder 1. The bottom of the air outlet 3 is fixedly connected to a separation device 5. The separation device 5 includes a connecting cylinder 51 and a bottom cylinder 52 fixed inside the connecting cylinder 51. An inner plate 53 is fixed inside the bottom cylinder 52. The connecting cylinder 51 and the bottom cylinder 52 are fixedly connected by a side plate 54.

[0027] A ring of air inlets 2 is opened on one side of the cylinder 1, and the air inlets 2 are wrapped around the top of the cylinder 1. The ring of air inlets 2 at the top of the cylinder 1 allows the airflow to enter evenly along the tangential direction of the cylinder wall, avoiding the "eccentric rotation" problem of traditional single-sided air inlet, ensuring that the airflow forms a stable "axisymmetric rotating flow field" in the cylinder 1, reducing eddy turbulence, improving the effective utilization space of the separation area, and further reducing the dust escape rate. The flange connection ensures the airtight connection between the air outlet and the separation device, avoiding abnormal increase in resistance caused by airflow leakage, while reducing eddy loss of airflow at the connection point, and further optimizing resistance performance.

[0028] The side plate 54 has an inclined structure and is fixed at an equal interval on the outer side of the top of the bottom cylinder 52. The inclined side plate 54 has the function of "guiding and rectifying" airflow: uniform airflow distribution and orderly movement trajectory; the winding air intake and spiral guide design avoid local impact wear of airflow on the cylinder wall. The equal interval distribution of the inclined side plate 54 and the inner plate 53 makes the force more uniform and reduces local wear of components. At the same time, dust is less likely to accumulate in the separation device 5, reducing the risk of internal blockage and corrosion. Compared with the "disorderly interception" of traditional equipment, the inclined side plate 54 can guide the airflow along a preset path, reducing the collision and friction between the airflow and the components. At the same time, the spiral inner plate 53 avoids the "dead zone stagnation" of airflow in the cylinder 1, reducing local airflow resistance. Compared with traditional equipment, it reduces the power consumption of the induced draft fan and reduces the annual energy cost.

[0029] The inner plates 53 are spirally distributed and fixed on the inner wall of the bottom cylinder 52, and multiple sets of inner plates 53 are equidistantly arranged. The bottom of the bottom cylinder 52 and the bottom of the cylinder 1 are both hollow trumpet-shaped with a larger top and a smaller bottom. The top of the connecting cylinder 51 is connected and fixed to the air outlet 3 through a flange. The spiral inner plates 53 (equidistantly arranged) on the inner side of the bottom cylinder 52 can guide the airflow to form an "orderly spiral motion", prolonging the residence time of the airflow in the separation area. At the same time, the spiral guidance enhances the centrifugal force of the airflow, making it easier for fine particles to be thrown towards the cylinder wall. The inclined side plates 54 (equidistantly arranged) between the connecting cylinder 51 and the bottom cylinder 52 can perform "secondary rectification" on the rising airflow and intercept the fine dust that escapes with the airflow. Based on the synergistic design of the spiral inner plates 53 and the inclined side plates 54, the two work together to improve the overall dust removal efficiency and the fine particulate matter separation efficiency, effectively meeting the stringent environmental emission standards.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flow-guided, high-efficiency, low-resistance cyclone dust collector, characterized in that, The device includes a cylinder (1), with an air outlet (3) and a dust outlet (4) respectively at the top and bottom of the cylinder (1), and a separation device (5) is fixedly connected at the bottom of the air outlet (3). The separation device (5) includes a connecting cylinder (51) and a bottom cylinder (52) fixed inside the connecting cylinder (51). An inner plate (53) is fixed inside the bottom cylinder (52), and the connecting cylinder (51) and the bottom cylinder (52) are fixedly connected by a side plate (54).

2. The high-efficiency, low-resistance cyclone dust collector of the guide type according to claim 1, characterized in that, A ring of air inlets (2) is opened on one side of the cylinder (1), and the air inlets (2) are wrapped around the top of the cylinder (1).

3. The high-efficiency, low-resistance cyclone dust collector of the guide type according to claim 1, characterized in that, The side plate (54) is an inclined structure and is fixed to the outer side of the top of the bottom cylinder (52) in an equidistant array.

4. The high-efficiency, low-resistance cyclone dust collector of the guide type according to claim 1, characterized in that, The inner plate (53) is spirally distributed and fixed on the inner side wall of the bottom cylinder (52), and multiple sets of inner plates (53) are equidistantly arranged.

5. A flow-guided high-efficiency low-resistance cyclone dust collector according to claim 4, characterized in that, The bottom of the bottom cylinder (52) and the bottom of the cylinder (1) are both hollow trumpet-shaped, with the top larger than the bottom.

6. A flow-guided high-efficiency low-resistance cyclone dust collector according to claim 1, characterized in that, The top end of the connecting cylinder (51) is connected and fixed to the air outlet (3) via a flange.

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