Flow guide device for assisting particle screening

Abstract

The invention discloses a flow guide device for assisting particle screening. The flow guide device comprises a free adjusting and fixing device and an additional flow guide plate assembly. The freely-adjusted fixing device can determine the position according to a particle retention area or an excessive impact area and is fixed to the pored position of a side pressing plate, extrusion locking needs to be completed through a guiding locking column and an elastic rubber barrel when no hole exists, the flowing trend of particles can be changed through a guiding flow turning plate of the fixing device, and the guiding angle alpha is approximately equal to the angle of a single particle after guiding; the screening opportunity is increased to effectively avoid particle retention; an additional flow guide plate assembly can be installed on the length of the punching sieve plate, the flow guide and screening assisting task for assisting particle screening is prolonged, in the unstable flowing state II, the additional flow guide plate and the side pressing plate have the beta angle difference in particle collision comparison, and it means that the additional flow guide plate avoids the particle retention phenomenon. The flow guide effect of the device can effectively improve the use efficiency, the particle selection quality and the impurity removal efficiency of the punching sieve plate in two flowing states.

Description

Technical Field

[0001] This invention relates to an auxiliary device for a perforated screen plate, and more specifically, to a flow guiding device for auxiliary particle screening that is flexibly adjustable and easy to use. Background Technology

[0002] In recent years, perforated screen plates have become a key component for particle grading and impurity removal. By using vibration excitation and other methods, particle sieving is achieved, and the quality of particle selection has been steadily improved.

[0003] Round, square, and oblong holes are the most common hole types in perforated screen plates. When designing and manufacturing screen holes, factors such as vibration intensity must be considered, as these are the main factors determining whether the component will deform or break. Therefore, a certain amount of space should be left in the edge area of ​​the screen plate. The length of the screen plate needs to consider factors such as energy consumption, manufacturing cost, and stability. Design parameters need to be continuously optimized based on particle flow characteristics. The particle flow characteristics in the edge area of ​​the screen plate cause certain defects in the perforated screen plate, thus preventing some particles from passing through the screen holes for filtration.

[0004] To prevent particles from accumulating at the edges or being impacted by particulate materials, this invention designs a flow guiding device to assist in particle screening. Through a flexible and convenient solution, it solves the above-mentioned shortcomings, which also helps to improve the efficiency and lifespan of the perforated screen plate. Summary of the Invention

[0005] The purpose of this invention is to provide a flow guiding device for auxiliary particle screening, which can solve the problem of particles being unable to pass through the screen holes in the edge area, and ensure improved particle quality and impurity removal efficiency of the perforated screen plate. To achieve the above objective, the technical solution adopted by this invention is:

[0006] A flow guiding device for auxiliary particle screening includes a freely adjustable fixing device and an additional flow guide plate assembly. The freely adjustable fixing device can be positioned and fixed at the perforated part of the side pressure plate according to the particle retention zone or excessive impact zone. When there are no perforations, it needs to rely on guide locking columns and elastic rubber cylinders to achieve compression locking. The particle group touches the guide flow plate to change direction, which means increasing the opportunity for multiple particle screenings. When the particle group is in a continuous flow state, the additional flow guide plate assembly needs to be installed to extend the flow guiding task of auxiliary particle screening.

[0007] The freely adjustable fixing device mainly includes a fixed main board, a side pressure adjusting plate, a guide locking column fixed on the side pressure adjusting plate, a guide flow plate and the fixed main board as a whole, an elastic rubber cylinder, and a main spring.

[0008] The fixed main plate, upper nut, and lower nut at one end are aligned with the center and welded into a single unit. The fixed main plate is placed on the perforated screen plate and aligned with the hole in the side pressure plate. The guide locking pin of the side pressure adjusting plate slides into the fixed main plate to determine the distance D on both sides of the perforated screen plate. A suitable J-type support frame is selected for later use. After aligning the stud with the upper nut, the elastic rubber cylinder is installed. When locking and fixing, ensure vertical constraint. Use the stud to pass through the side pressure plate and lock and fix it with the lower nut to ensure horizontal and vertical constraint. Slightly compress the main spring into the spring groove to block the force generated by excessive impact of particles on the guide plate.

[0009] The additional guide plate assembly includes a positioning fastener, which is integrated with the additional guide plate; the additional guide plate and the backflow prevention plate are a single unit; a J-shaped support frame; a press-fit fastener; an additional plate spring; a button spring; and a rotary positioning end.

[0010] When the particle group is not ideally guided by the guide plate, an additional guide plate assembly needs to be installed. After aligning the positioning fastener with the lower slot, insert it. On the other end, first place the button spring and pressing fastener sequentially through the hole, then press and align it with the upper slot before releasing it to allow it to spring back. The spacing parameter D can be measured by adjusting the side pressure plate. Select a suitable J-type support frame using a ruler. After aligning the nut with the center of the hole in the additional guide plate, weld them together as a single piece. Install using studs aligned with the center of the hole. The tightness of the installation needs to be determined by considering the vertical constraint on the other contact surface. Connect the three additional leaf springs sequentially to the rotary positioning end until the other side contacts the inner side pressure plate. When encountering excessive impact from the particle group, a certain degree of rebound will occur, completing the guiding task for auxiliary particle screening.

[0011] The beneficial effects of this invention are:

[0012] This invention provides a flow-guiding and screening aid for particles trapped on both sides of a perforated screen plate. The trapped particles are generated under two flow states: steady flow state I and unstable flow state II. In steady flow state I, the guide vane of the flow-guiding device effectively changes the flow trajectory of the particles. The guiding angle α is approximately equal to the angle of a single particle after guidance, increasing screening opportunities and preventing particle trapping. The additional guide vane ensures that particles cannot contact the edge areas, preventing particle accumulation. In unstable flow state II, the particle group repeatedly impacts the guide vane. Its main spring can mitigate some of the inertial force. The application of the additional guide vane further resists the impact of the particles. The angle difference between this and the side pressure plate without an additional leaf spring is β. The flow-guiding effect of this device effectively improves the utilization efficiency, particle quality, and impurity removal efficiency of the perforated screen plate in both flow states. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this invention, the required surrounding area is briefly described below.

[0014] Figure 1A schematic diagram illustrating the application scenarios of the flow guiding device of this invention is provided.

[0015] Figure 2 This invention provides a schematic diagram of the flow guiding device and a schematic diagram of the auxiliary particle screening.

[0016] Figure 3 The present invention provides a front view, top view, left view and perspective view of the freely adjustable fixing device.

[0017] Figure 4 The present invention provides a front view, top view, left view and perspective view of the additional deflector assembly.

[0018] Figure label:

[0019] 1. Freely adjustable fixing device; 2. Additional guide vane assembly; 102. Guide locking post; 105. Elastic rubber cylinder; 101. Fixed main board; 103. Side pressure adjusting plate; 104. Guide flow plate; 106. Main spring; 204. J-type support frame; 1011. Upper nut; 1012. Lower nut; 3011. Spacing D; 1013. Spring groove; 201. Positioning fastener; 202. Additional guide vane; 203. Backflow prevention plate; 205. Press-to-movement fastener; 206. Additional leaf spring; 207. Button spring; 208. Twist positioning end; 302. Scale mark; 2041. Nut; 301. Scale mark range; 2051. Press-to-movement fastener area. Detailed Implementation

[0020] To better understand the technical solution of the present invention, a more detailed description will be provided below in conjunction with the accompanying drawings.

[0021] This invention relates to a flow guiding device for auxiliary particle screening, comprising a freely adjustable fixing device 1 and an additional flow guiding plate assembly 2. The freely adjustable fixing device 1 can be installed at locations where particles are densely retained or where particle impact is severe on both sides of the perforated screen plate. Installation at the perforated side pressure plate is optimal. When the side pressure plate is not perforated, it requires the guide locking pin 102 and the elastic rubber cylinder 105 to achieve compression locking. The slight deformation generated by the rubber locking forms an interference fit with the side pressure plate, indirectly achieving a constraint fit. When the particle group is in a continuous flow state, it means that the perforated screen plate is subjected to horizontal or vertical excitation forces, and the flow guiding effect of the guide plate is not ideal. Therefore, the additional flow guiding plate assembly 2 needs to be installed to extend the flow guiding task of auxiliary particle screening. This device can improve particle quality through a flexible and convenient adjustment scheme.

[0022] The freely adjustable fixing device 1 includes a fixed main plate 101, a side pressure adjusting plate 103, a guide locking post 102 which needs to be fixed on the side pressure adjusting plate 103, a guide flow plate 104 which is integrated with the fixed main plate 101, an elastic rubber cylinder 105, and a main spring 106. The elastic coefficients of the elastic rubber cylinder 105 and the main spring 106 meet the technical requirements of the present invention. The fixed main plate 101, the upper nut 1011, and the lower nut 1012 at one end are aligned with the center and welded into a single piece. The fixed main plate 101 is placed on the perforated screen plate and aligned with the hole in the side pressure plate. The guide locking post 102 of the side pressure adjusting plate 103 slides into the fixed main plate 101 to determine the D-distance 3011 on both sides of the perforated screen plate. A suitable J-type support frame 204 is selected for use. After aligning the stud with the upper nut 1011, install the elastic rubber sleeve 105, ensuring vertical constraint during locking. Then, use the stud to pass through the side pressure plate and lock it with the lower nut 1012, ensuring horizontal and vertical constraint. Slightly compress the main spring 106 into the spring groove 1013 to block the force generated when particles excessively impact the guide plate 104. The connection between the guide locking post 102 and the side pressure adjusting plate 103 can be understood by those skilled in the art as a welded or 3D-printed integral part; the connection between the main board 101 and the guide plate 104 can also be understood by those skilled in the art as a welded or 3D-printed integral part.

[0023] The additional guide plate assembly 2 further includes a positioning fastener 201, which is integrated with the additional guide plate 202; the additional guide plate 202 and the backflow prevention plate 203 are a single unit; a J-shaped support frame 204; a pressing movable fastener 205; an additional leaf spring 206; a button spring 207; and a rotary positioning end 208. The additional leaf spring 206 is made of the same material as the main spring 106, and the elastic coefficient of the button spring 207 meets the technical requirements of this invention. When the particle group is not ideally guided by the guide plate 104, the additional guide plate assembly 2 needs to be installed. Its characteristic is that the positioning fastener 201 is inserted after aligning with the lower end slot, and the other end is first aligned with the hole, then the button spring 207 and the pressing movable fastener 205 are placed sequentially. After pressing and aligning with the upper end slot, it is released and springs back. The D-spacing 3011 can be measured by adjusting the side pressure plate 103. A suitable J-type support frame 204 can be selected using the scale 302. This method allows for quick and effective spacing adjustment. Nuts 2041 are aligned with the center of the hole in the auxiliary guide plate 202 and welded together. Studs are then installed, aligned with the center of the hole. The tightness of the installation needs to be determined by considering the other contact surface to assess the vertical constraint. Three auxiliary leaf springs 206 are sequentially engaged with the rotary positioning end 208 until the other side contacts the inner side pressure plate. When encountering excessive impact from the particle group, a certain degree of rebound is generated, completing the guiding task for auxiliary particle screening. The fixing method for the positioning fastener 201, auxiliary guide plate 202, backflow preventer 203, and rotary positioning end 208 can be understood by those skilled in the art as a welded or smooth-surfaced 3D-printed integral part.

[0024] In reality, the particles trapped in the edge area of ​​the perforated screen plate are generated by two states: steady flow state I and unstable flow state II, with steady flow state I being the normal state. In the normal state, the guide plate 104 of the flow guiding device can effectively change the particle flow trend. The guiding angle α is approximately equal to the angle of a single particle after being guided, increasing screening opportunities while preventing particle retention. The additional guide plate 202 ensures that particles cannot contact the edge area, preventing particle accumulation. In unstable flow state II, the particle group impacts the guide plate 104 multiple times, and its main spring 106 can avoid some of the inertial force. The application of the additional guide plate 104 can continue to resist the impact of particles. The angle difference between this device and the side pressure plate without the additional spring 206 is β. This flow guiding and screening device can steadily improve the particle selection quality in both flow states.

[0025] Finally, it should be noted that although the present invention has been described in detail above with reference to the accompanying drawings and embodiments, those skilled in the art should understand that further optimizations in form and detail can be made without departing from the scope defined by the claims.

Claims

1. A flow guiding device for assisting in the sieving of granules comprising a freely adjustable fixing device (1) and an additional flow guide plate assembly (2), characterised in that The free adjustment fixing device (1) can be positioned and fixed at the hole of the side pressing plate according to the particle retention zone or excessive impact zone, and the extrusion locking can be completed by the guide locking column (102) and the elastic rubber cylinder (105) when there is no hole; the additional flow guide plate assembly (2) needs to be installed when the particle group is in a sustainable flow state to prolong the flow guide task of auxiliary particle screening.

2. A flow guiding device to assist in the sieving of granules according to claim 1 characterised in that The free adjustment fixing device (1) comprises a fixed main plate (101), a side pressure adjustment pressing plate (103), a guide locking column (102) fixed on the side pressure adjustment pressing plate (103), a guide flow plate (104) which is an integral part with the fixed main plate (101), an elastic rubber cylinder (105), and a main spring (106).

3. A flow guiding device for assisting the sieving of granules according to claim 1 or 2, characterised in that The fixed main plate (101), the upper nut (1011) and the lower nut (1012) at one end are aligned and welded into an integral part, the fixed main plate (101) is placed on the punched screen plate and aligned with the hole of the side pressing plate, the guide locking column (102) of the side pressure adjustment pressing plate (103) is slid into the fixed main plate (101) to determine the distance D (3011) between the two sides of the punched screen plate, and a suitable J-shaped support frame (204) is selected for standby. The elastic rubber cylinder (105) is installed by aligning the stud with the upper nut (1011), and the vertical constraint is ensured during locking and fixing. The stud is locked and fixed by passing through the side pressing plate and the lower nut (1012), and the horizontal and height constraints are ensured. The main spring (106) is slightly compressed into the spring groove (1013) to block the force generated when the particle excessively impacts the guide flow plate (104).

4. The flow guiding device to assist particle sieving of claim 1, wherein The additional flow guide plate assembly (2) comprises a positioning buckle (201) which is an integral part with an additional flow guide plate (202), the additional flow guide plate (202) and a backflow blocking plate (203) are an integral part, a J-shaped support frame (204), a pressing movable buckle (205), an additional plate spring (206), a button spring (207), and a rotary positioning end (208).

5. A flow guiding device for assisting the screening of particles according to claim 1, 3 or 4, when the flow of the particle group is not optimally guided by the deflector (104) and an additional deflector assembly (2) is installed, characterized in that The positioning buckle (201) is loaded after being aligned with the lower end buckle groove, and the button spring (207) and the pressing movable buckle (205) are placed in order at the other end. After being aligned with the upper end buckle groove, the spring is released. The distance D (3011) can be measured through the side pressure adjustment pressing plate (103), and the reasonable J-shaped support frame (204) can be selected through the scale (302). The nut (2041) is aligned with the hole center of the additional flow guide plate (202) and welded into an integral part. The stud is installed by aligning the hole center, and the degree of tightness of the installation needs to be combined with the other contact surface to judge the vertical constraint. Three additional plate springs (206) are matched with the rotary positioning end (208) in turn until the other side contacts the side pressure inner plate. When the particle group is excessively impacted, a certain rebound effect can be generated to complete the flow guide task of auxiliary particle screening.

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