Fan filter screen capable of reducing adhesion

Abstract

The utility model discloses a fan filter screen capable of reducing adhesion, which comprises a Roots blower body, one side of the Roots blower body is provided with a motor for driving a fan impeller, the upper part of the Roots blower body is connected with an inlet pipe, the surface of the inlet pipe is provided with an inlet silencing pipe, the lower part of the Roots blower body is connected with an air outlet pipe, and the lower part of the Roots blower body is provided with an air inlet silencing pipe. An air outlet silencing pipe is installed on the surface of the air outlet pipe, an outlet used for exhausting air is formed in the output end of the air outlet pipe, and a filter screen is installed in the inlet pipe in an embedded mode; the surface of the filter screen is coated with a special coating, the adhesion coefficient of the grid surface to airflow is reduced, wind resistance is reduced, meanwhile, the coating can effectively prevent electrostatic adsorption and avoid blockage, meanwhile, the surface of the filter screen is in a spherical shape, wind resistance can be reduced, the windward side of each filter hole is in a chamfer design, and a specific attack angle is designed, so that the surface of the filter screen is more uniform. And the wind resistance is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fan filter screens, in particular to a fan filter screen capable of reducing adhesion. Background Art

[0002] In the cement production process, cement kilns are used to calcine cement clinker. Air is taken in and out of the kiln through air ducts, and Roots blowers are used to supply air to the kiln. During the use of Roots blowers, the inlet filter will have problems with cleaning and clogging. Therefore, the fan filter needs to be designed.

[0003] During use, the existing fan filter is prone to clogging. The surface of the filter is prone to adhesion due to static electricity. At the same time, the windward side of the filter is designed to have a large wind resistance. As the wind resistance increases, dust is easily accumulated on the surface of the filter, causing the surface of the filter to become clogged.

[0004] Therefore, those skilled in the art provide a fan filter with reduced adhesion to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide a fan filter with reduced adhesion, so as to solve the problem that the existing fan filter is easily blocked as mentioned in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fan filter for reducing adhesion comprises: a Roots blower body, a motor for driving a fan impeller is installed on one side of the Roots blower body, an inlet pipe is connected to the top of the Roots blower body, and an inlet silencer is installed on the surface of the inlet pipe, an outlet pipe is connected to the bottom of the Roots blower body, and an outlet silencer is installed on the surface of the outlet pipe, an outlet for exhausting air is provided at the output end of the outlet pipe, a filter screen is embedded and installed inside the inlet pipe, and filter holes are provided on the surface of the filter screen, and chamfered holes are integrally provided on the windward surface of the filter hole.

[0008] As a further solution of the present invention, a sealing collar is installed between the filter screen and the inlet pipe, and the sealing collar is fixedly connected to the inner wall of the inlet pipe.

[0009] As a further solution of the utility model, a frame is fixedly provided on the edge of the filter screen, and an inner filter screen is movably connected to the bottom of the filter screen, and a lever is fixedly connected to the middle of the bottom of the inner filter screen.

[0010] As a further solution of the present invention, the diameter of the filter screen is larger than the diameter of the inner filter screen, and the inner filter screen and the frame arranged on the edge of the filter screen are threadedly connected.

[0011] As a further solution of the present invention, the surface structure of the filter screen is a spherical structure, and the external structural shape of the filter screen is consistent with the external structural shape of the inner filter screen.

[0012] As a further solution of the utility model, the filter holes are arranged one by one with the chamfered holes, and the diameter of the windward surface of the chamfered hole is smaller than the diameter of the leeward surface of the chamfered hole, and the surface structure of the chamfered hole is a spherical arc structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The filter surface is coated with a special coating to reduce the adhesion coefficient of the mesh surface to the airflow and reduce wind resistance. At the same time, the coating can effectively prevent electrostatic adsorption and avoid clogging. At the same time, the surface of the filter adopts a spherical shape to reduce wind resistance. At the same time, the windward side of the filter hole adopts a chamfer design and a specific angle of attack is designed to further reduce wind resistance.

[0015] 2. The filter screen and the inner filter screen cooperate with each other and are installed together in combination, which can enhance the filtering effect of the filter screen. At the same time, the inner filter screen and the filter screen are threadedly connected, so the inner filter screen can be removed. At the same time, the grid on the surface of the inner filter screen can be used to pull down the adhering flocs, and then the debris in the gap between the filter screen and the inner filter screen can be cleaned up to reduce blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a fan filter for reducing adhesion.

[0017] Figure 2 The present invention is a schematic diagram of the structure of a filter screen in a fan filter screen for reducing adhesion.

[0018] Figure 3 The schematic diagram of the decomposed structure of the filter screen and the inner filter screen in a fan filter screen for reducing adhesion is shown in FIG.

[0019] Figure 4 A schematic diagram of the structure of chamfered holes in a fan filter for reducing adhesion.

[0020] In the figure: 1. Roots blower body; 2. Motor; 3. Inlet silencer; 4. Inlet pipe; 5. Filter; 6. Outlet pipe; 7. Outlet silencer; 8. Outlet; 9. Sealing ring; 10. Filter hole; 11. Frame; 12. Inner filter; 13. Wrench; 14. Chamfered hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 to Figure 4 The embodiment of the utility model provides a fan filter with reduced adhesion, comprising: a Roots blower body 1, a motor 2 for driving a fan impeller is installed on one side of the Roots blower body 1, an inlet pipe 4 is connected to the top of the Roots blower body 1, and an inlet silencer 3 is installed on the surface of the inlet pipe 4, an outlet pipe 6 is connected to the bottom of the Roots blower body 1, and an outlet silencer 7 is installed on the surface of the outlet pipe 6, an outlet 8 for exhausting air is arranged at the output end of the outlet pipe 6, a filter screen 5 is embedded and installed inside the inlet pipe 4, and a filter hole 10 is arranged on the surface of the filter screen 5, and a chamfered hole 14 is integrated on the windward surface of the filter hole 10, a sealing collar 9 is installed between the filter screen 5 and the inlet pipe 4, and the sealing collar 9 is fixedly connected to the inner wall of the inlet pipe 4, the filter hole 10 and the chamfered hole 14 are arranged one by one, and the diameter of the windward surface of the chamfered hole 14 is smaller than the diameter of the leeward surface of the chamfered hole 14, and the surface structure of the chamfered hole 14 is a spherical arc structure;

[0023] Specifically, by setting the sealing clamp ring 9, the filter 5 can be embedded and installed. The surface structure of the filter 5 is a spherical structure. The windward angle of the filter 5 is designed with a spherical arc angle, which can reduce resistance and adhesion. The filter hole 10 and the chamfered hole 14 are integrated to further reduce wind resistance.

[0024] A frame 11 is fixedly provided at the edge of the filter screen 5, and an inner filter screen 12 is movably connected to the bottom of the filter screen 5, a lever 13 is fixedly connected to the middle of the bottom of the inner filter screen 12, the diameter of the filter screen 5 is larger than the diameter of the inner filter screen 12, and the inner filter screen 12 and the frame 11 provided at the edge of the filter screen 5 are threadedly connected, the surface structure of the filter screen 5 is a spherical structure, and the external structural shape of the filter screen 5 is consistent with the external structural shape of the inner filter screen 12;

[0025] Specifically, the filter 5 and the inner filter 12 are installed together in an upper and lower combination to enhance the filtering effect of the filter 5. At the same time, the filter 5 and the inner filter 12 are threadedly connected to facilitate the removal of the inner filter 12 for cleaning. The outer structure design of the inner filter 12 fits the filter 5, and is used in combination with the filter 5 to reduce wind resistance.

[0026] The working principle of the utility model is:

[0027] When using the utility model, the filter screen 5 and the inner filter screen 12 are coated with a special coating to prevent static electricity. In this way, the special coating is used to effectively prevent static adsorption, avoid clogging, and reduce the adhesion coefficient of the filter screen 5 surface to the airflow. Secondly, the filter screen 5 is installed inside the inlet pipe 4 by using the sealing clamp ring 9. When the inlet pipe 4 enters the air, since the filter screen 5 adopts a spherical structure design, and the filter holes 10 on the surface of the filter screen 5 are integrated with the chamfered holes 14, the chamfered corner design of the chamfered holes 14 can be used. The resistance is further reduced and the adhesion of the filter 5 is reduced. Secondly, after the filter 5 is removed from the inside of the inlet pipe 4, the threaded connection between the filter 5 and the inner filter 12 is used to remove the inner filter 12 from the back of the filter 5. At the same time, the surface grid of the inner filter 12 is used to pull down the adhered flocs, and then the debris in the gap between the filter 5 and the inner filter 12 can be cleaned up to reduce the blockage of the filter 5. Finally, the air filtered by the filter 5 will be discharged from the outlet 8 of the air outlet pipe 6.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fan filter for reducing adhesion, characterized in that: include: A Roots blower body (1), a motor (2) for driving a blower impeller being installed on one side of the Roots blower body (1), an inlet pipe (4) being connected to the top of the Roots blower body (1), and an inlet silencer pipe (3) being installed on the surface of the inlet pipe (4), an outlet pipe (6) being connected to the bottom of the Roots blower body (1), and an outlet silencer pipe (7) being installed on the surface of the outlet pipe (6), an outlet (8) for exhausting air being provided at the output end of the outlet pipe (6), a filter screen (5) being embedded and installed inside the inlet pipe (4), and a filter hole (10) being provided on the surface of the filter screen (5), and a chamfered hole (14) being integrally provided on the windward surface of the filter hole (10).

2. A fan filter for reducing adhesion according to claim 1, characterized in that: A sealing collar (9) is installed between the filter screen (5) and the inlet pipe (4), and the sealing collar (9) is fixedly connected to the inner wall of the inlet pipe (4).

3. The fan filter with reduced adhesion according to claim 1, characterized in that: A frame (11) is fixedly provided on the edge of the filter screen (5), and an inner filter screen (12) is movably connected to the bottom of the filter screen (5), and a pull piece (13) is fixedly connected to the middle of the bottom of the inner filter screen (12).

4. The fan filter with reduced adhesion according to claim 1, characterized in that: The diameter of the filter screen (5) is greater than the diameter of the inner filter screen (12), and the inner filter screen (12) and the frame (11) arranged at the edge of the filter screen (5) are threadedly connected.

5. The fan filter with reduced adhesion according to claim 1, characterized in that: The surface structure of the filter screen (5) is a spherical structure, and the external structural shape of the filter screen (5) is consistent with the external structural shape of the inner filter screen (12).

6. The fan filter with reduced adhesion according to claim 1, characterized in that: The filter holes (10) are arranged in one-to-one correspondence with the chamfered holes (14), and the diameter of the windward surface of the chamfered hole (14) is smaller than the diameter of the leeward surface of the chamfered hole (14), and the surface structure of the chamfered hole (14) is a spherical arc structure.

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