Pipeline type vortex dust screening device

Abstract

The utility model relates to the technical field of dust screening equipment, and particularly discloses a pipeline type vortex dust screening device which comprises a main shell, an annular cavity is formed in the main shell, a variable-diameter vortex assembly is arranged at one end of the main shell and comprises a conical barrel, one end of the conical barrel is communicated with the annular cavity, and the other end of the conical barrel is communicated with the annular cavity. A guide turbofan is mounted at the other end; the pipeline type vortex dust screening device flows through the inner wall of the conical barrel and forms vortex flow under the guiding action of the multiple guide blades, so that a buffering section is formed, meanwhile, vortex airflow further enters the annular cavity and forms secondary buffering, and the dust screening effect is improved. According to the cyclone separator, the cyclone separator is arranged in the annular cavity, other large-mesh particle dust falls down and is collected in the vortex process of the annular cavity, relatively light small-particle dust is directly output, so that the required particle dust is screened, the whole structure is simple, maintenance is convenient, energy consumption is relatively low, meanwhile, the conical cylinder and the annular cavity jointly form secondary separation, and the separation efficiency is improved. And large particles can be better screened out.

Description

Technical Field

[0001] This utility model relates to the technical field of dust screening equipment, specifically, a pipeline vortex dust screening device. Background Technology

[0002] Dust screening technology has wide applications in industrial production (such as mining, chemical, pharmaceutical, and food processing), and its core objective is the efficient classification or collection of particulate matter in airflow. Existing technologies commonly use dust screening devices, which mainly fall into the following categories:

[0003] Filter-type dust collectors (such as bag filters and cartridge filters): rely on the principle of physical interception, trapping dust particles through porous filter media. However, they suffer from problems such as easy clogging of the filter media and the need for frequent replacement, leading to increased maintenance costs. In addition, the resistance of the filter media increases with the length of time it is used, resulting in a significant increase in energy consumption.

[0004] Existing eddy current screening technology:

[0005] Some equipment uses the eddy current principle to accelerate particle settling, but it has the following problems:

[0006] Insufficient vortex stability: Traditional straight-cylinder structure leads to turbulent airflow and incomplete particle separation;

[0007] Structural design flaws: The lack of buffering and secondary separation mechanisms prevents large particles from being properly screened out.

[0008] The limitations of the aforementioned technologies indicate an urgent need for a pipeline dust treatment device that can simultaneously achieve efficient screening, low energy consumption, and easy maintenance. In particular, it is necessary to optimize the vortex formation method and particle classification mechanism to improve the overall efficiency of industrial dust treatment. Utility Model Content

[0009] Based on the above-mentioned technical defects, this utility model provides a pipeline vortex dust screening device, which optimizes airflow distribution and particle settling path through the synergistic effect of variable diameter vortex components and annular cavity, thereby achieving efficient classification and low energy consumption operation.

[0010] The technical solution adopted by this utility model to solve its technical problem is: a pipeline vortex dust screening device, including a main shell, an annular cavity is provided inside the main shell, a variable diameter vortex assembly is provided at one end of the main shell, the variable diameter vortex assembly includes a conical cylinder, one end of the conical cylinder is connected to the annular cavity, and a guide vortex fan is installed at the other end, the guide vortex fan is the gas input end, and multiple guide blades are fixedly arranged inside the guide vortex fan.

[0011] In the aforementioned pipeline-type vortex dust screening device, the inner diameter of the conical cylinder gradually increases from the guide vortex fan towards the annular cavity.

[0012] In the aforementioned pipeline-type vortex dust screening device, the inner diameter of the annular cavity is larger than the maximum inner diameter of the conical cylinder.

[0013] In the above-mentioned pipeline-type vortex dust screening device, the main shell includes a cylindrical body. One end of the cylindrical body is provided with a connection port connected to a conical cylinder, and the other end is provided with an air outlet. The lower end of the cylindrical body is provided with a discharge hopper, and the lower part of the discharge hopper is provided with a discharge port. A baffle ring is provided inside the air outlet. One side edge of the baffle ring extends into the annular cavity, and a plurality of screening holes are opened on the side of the baffle ring located in the annular cavity.

[0014] In the aforementioned pipeline-type vortex dust screening device, several screening holes are distributed on the semi-circular ring of the lower half of the retaining ring.

[0015] In the aforementioned pipeline-type vortex dust screening device, the cross-section of the discharge hopper is frustoconical.

[0016] The beneficial effects of this invention are as follows: Dust-containing gas is input from the guide fan. Guided by multiple guide blades, the dust-containing gas flows through the inner wall of the conical cylinder, forming a vortex. Since the inner wall of the conical cylinder is not straight, a buffer section is formed, causing some large-mesh dust particles to fall. Simultaneously, the vortex airflow further enters the annular cavity, forming a secondary buffer, allowing the remaining large-mesh dust particles to fall and be collected during the vortex process in the annular cavity. The relatively lighter small-particle dust is directly output, thus achieving the desired dust particle separation. The entire structure is simple, easy to maintain, and has relatively lower energy consumption. Furthermore, the conical cylinder and the annular cavity together form a two-stage separation, which can better separate large particles. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the pipeline vortex dust screening device in this embodiment.

[0018] Figure 2 This is one of the three-dimensional structural diagrams of the main housing in this embodiment.

[0019] Figure 3 This is the second three-dimensional structural diagram of the main housing in this embodiment.

[0020] In the figure: 1. Main shell; 2. Conical cylinder; 3. Guide turbine; 4. Cylindrical body; 5. Annular cavity; 6. Connection port; 7. Baffle ring; 8. Discharge hopper; 9. Discharge port; 10. Screening hole; 11. Guide blade. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Combination Figures 1 to 3 The illustrated pipeline-type vortex dust screening device includes a main housing 1, within which an annular cavity 5 is provided. A variable-diameter vortex assembly is located at one end of the main housing 1. The variable-diameter vortex assembly includes a conical cylinder 2, one end of which is connected to the annular cavity 5, and the other end of which is fitted with a guide vortex fan 3. The guide vortex fan 3 serves as the gas input end, and multiple guide blades 11 are fixedly arranged within it, radially distributed. In this embodiment, during implementation, the guide vortex fan 3 is connected to a pipeline, and dust-containing gas is input from the guide vortex fan 3. The dust-containing gas then... Guided by multiple guide vanes 11, the airflow passes through the inner wall of the conical cylinder 2 and forms a vortex. Since the inner wall of the conical cylinder 2 is not a straight cylinder, a buffer section is formed, causing some large-particle dust to fall. At the same time, the vortex airflow further enters the annular cavity 5 and forms a secondary buffer, allowing the remaining large-particle dust to fall and be collected during the vortex process in the annular cavity 5, while the relatively light small-particle dust is directly output, thereby achieving the screening of the required particles of dust. The whole structure is simple, easy to maintain, and has relatively lower energy consumption. At the same time, the conical cylinder 2 and the annular cavity 5 together form a two-stage separation, which can better screen out large particles.

[0023] It is worth noting that in this embodiment, the inner diameter of the conical cylinder 2 gradually expands from the guide vortex fan 3 towards the annular cavity 5. This allows the gas containing dust to be vortexed and transported from narrow to wide direction after flowing through the guide vortex fan 3, forming a primary buffer and separation, so that large particles initially fall, while fine particles continue to be vortexed and transported. In this embodiment, the inner diameter of the annular cavity 5 is larger than the maximum inner diameter of the conical cylinder 2, so that the gas enters the annular cavity 5 after the primary buffer and separation, thereby allowing the gas to undergo a secondary buffer and separation within the annular cavity 5, making the separation of large particles more thorough.

[0024] The main housing 1 of this embodiment includes a cylindrical body 4. One end of the cylindrical body 4 is provided with a connection port 6 connected to the conical cylinder 2, and the other end is provided with an air outlet. The lower end of the cylindrical body 4 is provided with a discharge hopper 8. The discharge hopper 8 has a frustoconical cross-section and a discharge port 9 is provided at the lower end of the discharge hopper 8. A baffle ring 7 is provided inside the air outlet. One side edge of the baffle ring 7 extends into the annular cavity 5. Several screening holes 10 are opened on the side of the baffle ring 7 located in the annular cavity 5. A flow-blocking area is formed between the lower end face of the part of the baffle ring 7 extending into the annular cavity 5 and the inner wall of the annular cavity 5. After the gas enters the annular cavity 5, the gas is transported to the air outlet during the vortex process in the annular cavity 5. The flow-blocking area can prevent large-mesh particles from being output from the air outlet, while allowing small-mesh particles to pass through several screening holes 10 and be output from the air outlet, thereby making the particle separation more thorough.

[0025] It is worth noting that several screening holes 10 are distributed on the semi-circular ring of the lower half of the baffle ring 7, so that large-mesh particles can fall down and be collected better in the flow-blocking area of ​​the lower half of the baffle ring 7. The upper half of the baffle ring 7 cannot be provided with screening holes 10 to prevent large-mesh particles from clogging or passing through when falling, which would result in incomplete screening.

[0026] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A pipeline-type vortex dust screening device, comprising a main housing (1), characterized in that, The main housing (1) is provided with an annular cavity (5). A variable diameter vortex assembly is provided at one end of the main housing (1). The variable diameter vortex assembly includes a conical cylinder (2). One end of the conical cylinder (2) is connected to the annular cavity (5), and a guide vortex fan (3) is installed at the other end. The guide vortex fan (3) is the gas input end. Multiple guide blades (11) are fixedly arranged inside the guide vortex fan (3).

2. The pipeline-type vortex dust screening device according to claim 1, characterized in that, The inner diameter of the conical cylinder (2) gradually increases from the guide vortex fan (3) toward the annular cavity (5).

3. The pipeline-type vortex dust screening device according to claim 2, characterized in that, The inner diameter of the annular cavity (5) is greater than the maximum inner diameter of the conical cylinder (2).

4. The pipeline-type vortex dust screening device according to claim 1, characterized in that, The main housing (1) includes a cylindrical body (4). One end of the cylindrical body (4) is provided with a connection port (6) connected to the conical cylinder (2), and the other end is provided with an air outlet. The lower end of the cylindrical body (4) is provided with a discharge hopper (8), and the lower end of the discharge hopper (8) is provided with a discharge port (9). A baffle ring (7) is provided inside the air outlet. One side edge of the baffle ring (7) extends into the annular cavity (5). Several screening holes (10) are opened on one side of the baffle ring (7) located in the annular cavity (5).

5. The pipeline-type vortex dust screening device according to claim 4, characterized in that, Several of the sieve holes (10) are distributed on the semi-circular ring of the lower half of the retaining ring (7).

6. The pipeline-type vortex dust screening device according to claim 4, characterized in that, The cross-section of the discharge hopper (8) is frustoconical.

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