Conical filter with spiral air duct

Abstract

The utility model discloses a conical filter with a spiral air duct, which comprises a conical filter part, the spiral air duct is arranged in the conical filter part and positioned at a large-head inlet of the conical filter part, a drainage block is welded at a small-head outlet of the conical filter part, and the drainage block is of a tubular structure. The outer side of the drainage block is connected with a bottom cover in a threaded connection mode, lining rings are evenly arranged on the inner side of the conical filtering piece, gas can be spiral through the spiral air channel, so that solid particles form a spiral shape in the center of airflow and finally settle into a dust collection cavity of the bottom cover, and the conical filter with the spiral air channel is simple in structure and convenient to use. The filter is simple in structure and convenient to install, frequent blockage of the filter can be avoided, the maintenance period of the filter is long, filtering is faster, and convenience is provided for people.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a conical filter with a spiral air duct. Background Art

[0002] Conical filter is a common filtering device, which generally includes a conical body made of a perforated plate, with a filter screen arranged on the inner side of the conical body. The traditional conical filter has a small flow rate, a large filtration resistance and a low filtration efficiency. In addition, due to the large size of the high-temperature air filter, the bottom diameter is 2 meters and the height is 2.4 meters. Therefore, the filter screen needs to be fixed to the conical body to increase the overall strength and stability of the filter. The conventional fixing method uses bolts. Under the operating conditions of filtering high-temperature air, the bolts will become loose due to expansion, resulting in a poor seal. At the same time, this fixing method will occupy the filtration area, thereby affecting the filtration effect of the filter. The existing conical filter has a complex structure, and the gas directly enters the filter element from the inlet. During filtration, the particles in the gas directly contact the filter screen, and the solid particles easily clog the filter screen. Therefore, the filter element needs to be frequently inspected and cleaned, resulting in slow filtration efficiency and inconvenient use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a conical filter with a spiral air duct, which has a simple structure and is easy to install. It not only avoids frequent filter blockage and prolongs the maintenance cycle of the filter, but also makes filtration faster, provides convenience for people, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a conical filter with a spiral air duct, comprising a conical filter element, a spiral air duct is arranged inside the conical filter element, the spiral air duct is located at the large end inlet of the conical filter element, a drainage block is welded at the small end outlet of the conical filter element, the drainage block is a tubular structure, and the outer side of the drainage block is connected to the bottom cover by a threaded connection, and lining rings are evenly arranged on the inner side of the conical filter element.

[0005] Furthermore, the conical filter element includes a conical structure skeleton, a filter layer is fixed on the inner side of the skeleton, and the filter layer is fixedly connected to the skeleton by electric welding.

[0006] Furthermore, the outer side of the liner ring is a conical structure, and welding holes are evenly provided on the liner ring. The conical filter element can be reinforced by the liner ring, making the device stronger.

[0007] Furthermore, a flange is welded on the outside of the large end of the conical filter element, and a handle is provided on one side of the flange. The device can be fixed by clamping the flange.

[0008] Furthermore, the bottom cover includes a barrel-shaped shell connected to the drainage block by a threaded connection. The inner bottom surface of the barrel-shaped shell is provided with a dust collecting chamber, which is a spherical structure, and dust can be collected through the dust collecting chamber.

[0009] Compared with the prior art, the beneficial effect of the present invention is that the gas enters from the opening of the conical filter element, and the gas can be formed into a spiral shape through the spiral air duct, so that the solid particles form a vortex in the center of the air flow, and finally settle into the dust collecting chamber of the bottom cover. Compared with ordinary conical filters, it avoids the air flow directly driving the solid particles to contact the conical filter element, causing fixed particles to remain on the surface of the conical filter element and cause blockage. For the problems of short maintenance cycle and low filtration efficiency of the filter, the conical filter with a spiral air duct has a simple structure and is easy to install. It not only avoids frequent filter blockage and prolongs the filter maintenance cycle, but also filters faster, providing convenience for people. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the liner ring structure of the utility model;

[0012] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0013] In the figure: 1 conical filter element, 11 skeleton, 12 filter layer, 2 spiral air duct, 3 drainage block, 4 bottom cover, 41 barrel-shaped shell, 42 dust collecting chamber, 5 lining ring, 6 welding hole, 7 flange. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figure 1-3The utility model provides a technical solution: a conical filter with a spiral air duct, comprising a conical filter element 1, a spiral air duct 2 is arranged inside the conical filter element 1, the spiral air duct 2 is located at the large end inlet of the conical filter element 1, and a drainage block 3 is welded at the small end outlet of the conical filter element 1, the drainage block 3 is a tubular structure, and the outer side of the drainage block 3 is connected to the bottom cover 4 by a threaded connection, the inner side of the conical filter element 1 is evenly provided with a lining ring 5, the conical filter element 1 includes a skeleton 11 of a conical structure, a filter layer 12 is fixed to the inner side of the skeleton 11, and the filter layer 12 is fixedly connected to the skeleton 11 by electric welding, the outer side of the lining ring 5 is a conical structure, and the lining ring 5 is evenly provided with welding Hole 6, the conical filter element 1 can be reinforced by the lining ring 5, so that the device is stronger. A flange 7 is welded on the outside of the big head end of the conical filter element 1, and a handle is provided on one side of the flange 7. The device can be fixed by clamping the flange 7. The bottom cover 4 includes a barrel-shaped shell 41 connected to the drainage block 3 by a threaded connection. The inner bottom surface of the barrel-shaped shell 41 is provided with a dust collecting chamber 42, and the dust collecting chamber 42 is a spherical structure. Dust can be collected through the dust collecting chamber 42. The conical filter with a spiral air duct has a simple structure and is easy to install. It not only avoids frequent filter blockage and makes the filter maintenance cycle long, but also filters faster, providing convenience for people.

[0016] During use: gas enters from the opening of the conical filter element 1, and can be formed into a spiral shape through the spiral air duct 2, so that solid particles form a vortex in the center of the airflow, and finally settle into the dust collecting chamber 42 of the bottom cover 4. Dust can be collected through the dust collecting chamber 42. Compared with ordinary conical filters, this avoids the airflow directly driving solid particles to contact the conical filter element 1, causing fixed particles to remain on the surface of the conical filter element 1 and cause blockage, which solves the problems of short maintenance cycle of the filter and low filtration efficiency.

[0017] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A conical filter with a spiral air duct, comprising a conical filter element (1), characterized in that: A spiral air duct (2) is provided inside the conical filter element (1), and the spiral air duct (2) is located at the large end inlet of the conical filter element (1). A drainage block (3) is welded at the small end outlet of the conical filter element (1), and the drainage block (3) is a tubular structure. The outer side of the drainage block (3) is connected to the bottom cover (4) by a threaded connection. Lining rings (5) are evenly provided on the inner side of the conical filter element (1).

2. The conical filter with a spiral air duct according to claim 1, characterized in that: The conical filter element (1) comprises a conical structure skeleton (11), a filter layer (12) is fixed on the inner side of the skeleton (11), and the filter layer (12) is fixedly connected to the skeleton (11) by electric welding.

3. The conical filter with a spiral air duct according to claim 1, characterized in that: The outer side of the liner ring (5) is a conical structure, and welding holes (6) are evenly arranged on the liner ring (5).

4. The conical filter with a spiral air duct according to claim 1, characterized in that: A flange (7) is welded to the outside of the large end of the conical filter element (1), and a handle is provided on one side of the flange (7).

5. The conical filter with a spiral air duct according to claim 1, characterized in that: The bottom cover (4) comprises a barrel-shaped outer shell (41) connected to the drainage block (3) by means of a threaded connection, and a dust collecting chamber (42) is provided on the inner bottom surface of the barrel-shaped outer shell (41), and the dust collecting chamber (42) is a spherical structure.

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