A vertical coarse coal filter

Abstract

The utility model discloses a vertical coarse particle level coal filter belongs to coal filter technical field, including the filter main part of the vertical butt joint in the coal conveying pipeline of up and down, the discharge gate of setting on the front lateral wall of filter main part and the side door that can open or close discharge gate, install the filter screen that can put or take out from the discharge gate in the filter main part, and the filter screen is the stereo and thickening filter screen of upper surface to the inclined reduction of discharge gate, lower surface level. Vertical coarse particle level coal filter passes through the optimization filter screen structure, sets up convenient maintenance structure and prevents the design of jamming, effectively solved the problem of low filtering efficiency, difficult maintenance, easy to jam and filter screen easy to damage in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of coal filtration technology, specifically a vertical coarse-grained coal filter. Background Technology

[0002] In coal processing or transportation, coal particles often need to be graded and filtered to separate coarse-grained coal that meets the particle size requirements. Traditional filtration devices mostly have horizontally arranged filter screens. After coal enters from one side, the particles accumulated on the filter screen surface need to be cleaned by vibration or manual cleaning, which easily leads to clogging problems. Moreover, replacing the filter screen requires disassembling the entire device, making maintenance difficult and time-consuming. In addition, traditional filter screens are mostly planar structures, resulting in poor coal flow on the filter screen surface, which easily accumulates at the front end of the filter screen, leading to reduced filtration efficiency. Some filter screens are also prone to deformation due to coal friction or impact, resulting in a short service life. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vertical coarse-grained coal filter, which achieves efficient filtration of coal through vertical arrangement, pull-out replaceable filter screen and anti-clogging structure design, while simplifying maintenance and extending the service life of the filter screen.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vertical coarse-grained coal filter includes a filter body vertically connected to a coal conveying pipeline, a discharge port opened on the front side wall of the filter body, and a side door that can open or close the discharge port; a filter screen that can be inserted or removed from the discharge port is installed inside the filter body. The filter screen is a three-dimensional and thickened filter screen with its upper surface inclined downward toward the discharge port and its lower surface horizontal.

[0006] By adopting the above scheme, the vertical coarse-grained coal filter, after optimizing the structure and shape of the filter screen, has the following advantages: Convenient maintenance: The filter screen can be directly inserted or removed from the discharge port. Combined with the opening and closing of the side door, daily cleaning, maintenance, or replacement of the filter screen is convenient, reducing maintenance difficulty and time costs; Optimized anti-clogging and material flow: The design of the upper surface of the filter screen tilting downwards towards the discharge port allows coal to slide naturally towards the discharge port under gravity, reducing accumulation on the filter screen surface, effectively reducing the risk of clogging and improving filtration efficiency; Strong structural stability: The lower surface of the filter screen remains horizontal, fitting more tightly with the internal support surface of the filter body, resulting in uniform stress and avoiding deformation caused by material impact or its own weight, ensuring structural reliability for long-term use.

[0007] In a preferred embodiment of a vertical coarse-grained coal filter, the filter screen is a three-dimensionally printed stainless steel wire mesh or polyester fiber mesh, which takes into account both high strength and filtration accuracy.

[0008] In a preferred embodiment of a vertical coarse-grained coal filter, the upper surface of the filter screen is inclined at an angle of 15-45° towards the discharge port. The coal is guided to slide along the inclined surface towards the discharge port by gravity, reducing the accumulation of coal on the filter screen surface and preventing coal from clogging the filter screen.

[0009] In a preferred embodiment of a vertical coarse-grained coal filter, the filter screen has honeycomb-shaped pores, which ensures filtration efficiency and enhances the structural strength of the filter screen.

[0010] In a preferred embodiment of a vertical coarse-grained coal filter, a ring-shaped support is connected to the bottom of the filter screen. The ring-shaped support only partially contacts the bottom surface of the filter screen (e.g., the edge area). Multiple circumferentially arrayed sliding rods are connected to the lower surface of the ring-shaped support. The ring-shaped support is slidably mounted on a support beam connected to the inner wall of the filter body via the sliding rods. Each sliding rod is fitted with a spring that pushes the filter screen upwards. This structure facilitates the pulling and installing of the filter screen. Simultaneously, the springs provide elastic support, preventing the filter screen from deforming due to its own weight or material impact. Furthermore, each time coal falls, it impacts the filter screen, generating vibration that accelerates the sliding of coal along the inclined surface of the filter screen.

[0011] In a preferred embodiment of a vertical coarse-grained coal filter, a baffle plate located above the filter screen is connected to the inner wall of the filter body. The baffle plate can intercept coal and reduce the pressure of direct impact on the filter screen. The baffle plate has an opening facing the rear end of the filter screen (i.e., the opening direction is opposite to the discharge port direction); and the baffle plate is inclined and lowered at the location of its opening. The opening design guides the coal to flow from the rear to the front of the filter screen (i.e., towards the discharge port direction), thereby improving the utilization rate of the filter screen.

[0012] In a preferred embodiment of a vertical coarse-grained coal filter, a handle is connected to the front of the side door, which, when closed, fits tightly against the edge of the discharge port through a rubber sealing strip. Positioning grooves are provided at the four corners of the side door, and these grooves are secured by four sets of self-locking structures installed around the discharge port. Each self-locking structure includes side ears fixed around the discharge port, a positioning rod rotatably connected to the side ears, and an extension handle rotatably mounted at the end of the positioning rod. The positioning rod is precisely interlocked into the positioning groove, enabling rapid locking and unlocking of the side door.

[0013] In a preferred embodiment of a vertical coarse-grained coal filter, the upper and lower ends of the filter body are vertically connected to the coal conveying pipeline via flanges, and sealing gaskets are provided on the flange surfaces to ensure the sealing of the pipeline connection and the convenience of disassembly and maintenance.

[0014] The beneficial effects of this utility model are:

[0015] 1. High-efficiency filtration and anti-clogging: The 15-45° inclined surface of the filter screen utilizes gravity to guide the flow and reduce coal accumulation; the honeycomb-shaped filter holes balance filtration accuracy and anti-clogging ability; the guiding structure of the baffle plate optimizes coal distribution and further improves filtration efficiency.

[0016] 2. Convenient maintenance: The filter screen can be directly pulled out or put in from the discharge port. With the self-locking structure of the side door, the filter screen can be replaced or cleaned without disassembling the entire filter body, greatly reducing maintenance time.

[0017] 3. Strong structural stability: The filter screen is three-dimensional and thickened, and the design of the ring support, slide bar and spring is added. It is not only easy to install the filter screen, but also avoids the filter screen from deforming due to its own weight or material impact through elastic support. At the same time, the coal will impact the filter screen with each drop, which will generate a vibration. The vibration can accelerate the coal to slide down the inclined surface of the filter screen.

[0018] 4. High durability: The 3D printed stainless steel wire mesh or polyester fiber mesh is high in strength and wear-resistant, extending the service life of the filter screen; the sealing design of the rubber sealing strip and self-locking structure prevents coal leakage and dust entry, ensuring internal cleanliness. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a three-dimensional structural diagram of a vertical coarse-grained coal filter.

[0021] Figure 2 This is a front view of a vertical coarse-grained coal filter.

[0022] Figure 3 To hide Figure 1 3D structural diagram of the area behind the center side door;

[0023] Figure 4 To showcase Figure 3 Three-dimensional structure of internal structure Figure 1 ;

[0024] Figure 5 To showcase Figure 3 Three-dimensional structure of internal structure Figure 2 ;

[0025] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0026] Figure 7 for Figure 1 A magnified view of a section at point B in the middle;

[0027] The markings in the diagram are: 1-Filter body; 2-Outlet; 3-Side door; 4-Filter screen; 5-Annular bracket; 6-Slide rod; 7-Support beam; 8-Spring; 9-Blocking plate; 10-Pull handle; 11-Positioning groove; 12-Side ear; 13-Positioning rotating rod; 14-Extension handle; 15-Flange. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 5 As shown, a vertical coarse-grained coal filter is provided, which is suitable for coarse-grained classification in coal processing or transportation. Specifically, it includes a filter body 1 vertically connected to the coal conveying pipeline, a discharge port 2 opened on the front side wall of the filter body 1, and a side door 3 that can open or close the discharge port 2; a filter screen 4 that can be put into or taken out from the discharge port 2 is installed inside the filter body 1. The filter screen 4 is a three-dimensional and thickened filter screen with the upper surface inclined towards the discharge port 2 and the lower surface horizontal. The vertical coarse-grained coal filter, through optimized design of the structure and shape of the filter screen 4, has the following advantages: Convenient maintenance: The filter screen 4 can be directly inserted or removed from the discharge port 2. Combined with the opening and closing operation of the side door 3, it facilitates daily cleaning, maintenance, or replacement of the filter screen, reducing maintenance difficulty and time costs; Optimized anti-clogging and material flow: The design of the upper surface of the filter screen 4 tilting downwards towards the discharge port 2 allows coal to slide naturally towards the discharge port 2 under gravity, reducing accumulation on the filter screen surface, effectively reducing the risk of clogging, and improving filtration efficiency; Strong structural stability: The lower surface of the filter screen 4 remains horizontal, fitting more tightly with the internal support surface of the filter body 1, resulting in uniform stress and preventing deformation caused by material impact or its own weight, ensuring structural reliability for long-term use.

[0030] like Figures 4 to 5 As shown, filter screen 4 is a 3D printed stainless steel wire mesh, but it can also be a polyester fiber mesh, which takes into account both high strength and filtration accuracy.

[0031] Continue as Figures 4 to 5As shown, the upper surface of the filter screen 4 is inclined at an angle of 30° towards the discharge port 2. This inclination angle can be within the range of 15-45°. It guides the coal to slide along the inclined surface towards the discharge port 2 by gravity, reducing the accumulation on the filter screen surface and preventing coal from clogging the filter screen 4.

[0032] Continue as Figures 4 to 5 As shown, the filter screen 4 has honeycomb-shaped pores, which not only ensures filtration efficiency but also enhances the structural strength of the filter screen.

[0033] like Figure 6 As shown, a ring-shaped bracket 5 is connected to the bottom of the filter screen 4. The ring-shaped bracket 5 only partially fits against the bottom surface of the filter screen 4 (such as the edge area). Multiple circumferentially arrayed sliding rods 6 are connected to the lower surface of the ring-shaped bracket 5. The ring-shaped bracket 5 is slidably mounted on a support beam 7 connected to the inner wall of the filter body 1 via the sliding rods 6. Each sliding rod 6 is fitted with a spring 8 that pushes the filter screen 4 upward. This structure facilitates the pull-out installation of the filter screen 4. At the same time, the springs 8 provide elastic support to prevent the filter screen from deforming due to its own weight or material impact. In addition, each time the coal falls, it impacts the filter screen 4, generating vibration. This vibration can accelerate the sliding of the coal along the inclined surface of the filter screen 4.

[0034] like Figures 4 to 5 As shown, a baffle plate 9 is connected to the inner wall of the filter body 1 above the filter screen 4. The baffle plate 9 can intercept coal and reduce the pressure of direct impact on the filter screen. The baffle plate 9 has an opening facing the rear end of the filter screen 4 (i.e., the opening direction is opposite to the direction of the discharge port 2). The baffle plate 9 is inclined and lowered at the location of its opening. Its opening design guides the coal to flow from the rear to the front of the filter screen 4 (i.e., flow towards the discharge port 2), thereby improving the utilization rate of the filter screen 4.

[0035] like Figure 1 , Figure 2 , Figure 7 As shown, a handle 10 is connected to the front of the side door 3. When closed, it fits tightly with the edge of the discharge port 2 through a rubber sealing strip. The four corners of the side door 3 are provided with positioning grooves 11. The positioning grooves 11 on the side are fixed by four sets of self-locking structures installed around the discharge port 2. The self-locking structure includes side ears 12 fixed around the discharge port 2, a positioning rotating rod 13 rotatably connected to the side ears 12, and an extension handle 14 extended and rotatably installed at the end of the positioning rotating rod 13. The positioning rotating rod 13 is just inserted into the positioning groove 11, realizing the quick locking and unlocking of the side door 3.

[0036] like Figure 1 As shown, the upper and lower ends of the filter body 1 are vertically connected to the carbon conveying pipeline through flanges 15, and a sealing gasket is provided on the flange 15 to ensure the sealing of the pipeline connection and the convenience of disassembly and maintenance.

[0037] The working principle of this utility model:

[0038] In use, an opening can be made directly at the cut point of the traditional coal conveying pipe. The filter body 1 is then installed on the coal conveying pipe via flange 15. Coal enters from the top of the filter body 1, is guided by the baffle plate 9, and then directed behind the filter screen 4. Due to the inclined upper surface of the filter screen 4, the coal naturally slides towards the outlet 2 under gravity, completes fine-particle filtration through the filter holes, and falls into the lower coal conveying pipe. Coarse particles are retained on the surface of the filter screen 4. When it is necessary to clean or replace the filter screen 4, the side door 3 can be opened after the positioning lever 13 disengages from the positioning groove 11, the filter screen 4 can be lifted and pulled out for operation.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vertical coarse-grained coal filter, comprising a filter body vertically connected to a coal conveying pipeline, a discharge port opened on the front side wall of the filter body, and a side door capable of opening or closing the discharge port. characterized in that The filter body is equipped with a filter screen that can be inserted or removed from the discharge port. The filter screen is a three-dimensional and thickened filter screen with its upper surface inclined downward toward the discharge port and its lower surface horizontal.

2. The vertical coarse coal filter according to claim 1, characterized in that, The filter screen is a 3D-printed stainless steel wire mesh or polyester fiber mesh.

3. The vertical coarse coal filter according to claim 1, wherein, The upper surface of the filter screen is inclined at an angle of 15-45° towards the discharge port.

4. The vertical coarse coal filter of claim 1, wherein: The filter screen has honeycomb-shaped pores.

5. The vertical coarse coal filter of claim 1, wherein: The bottom of the filter screen is connected to an annular bracket, which is only partially in contact with the bottom surface of the filter screen. The lower surface of the annular bracket is connected to multiple circumferentially arrayed sliding rods. The annular bracket is slidably mounted on a support beam connected to the inner wall of the filter body via the sliding rods. Each sliding rod is fitted with a spring that pushes the filter screen to spring back.

6. The vertical coarse coal filter of claim 1, wherein: The inner wall of the filter body is connected to a baffle plate located above the filter screen, and the baffle plate has an opening facing the rear end of the filter screen.

7. The vertical coarse coal filter according to claim 6, characterized in that, The material-blocking plate is tilted and lowered at the location of its opening.

8. The vertical coarse coal filter according to claim 1, wherein, A handle is connected to the front of the side door, which fits tightly against the edge of the discharge port with a rubber sealing strip when closed. Positioning grooves are provided at the four corners of the side door, and the positioning grooves on the side are fixed by four sets of self-locking structures installed around the discharge port.

9. The vertical coarse coal filter according to claim 8, characterized in that: The self-locking structure includes a side lug fixed around the discharge port, a positioning rod rotatably connected to the side lug, and an extension handle rotatably mounted on the end of the positioning rod, wherein the positioning rod is just interference-fitted into the positioning groove.

10. The vertical coarse coal filter of claim 1, wherein: The filter body is vertically connected to the carbon conveying pipeline at both the top and bottom ends via flanges, and sealing gaskets are provided on the flange surfaces.

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