A bin material separation device

Abstract

This utility model relates to the field of material separation technology and discloses a silo material separation device, including a main body and a bottom plate. The main body has a distributing mechanism inside for material separation. The bottom plate has a stabilizing mechanism at its bottom to maintain device stability. The main body has a sealing assembly at its top. The distributing mechanism includes a cover plate, the bottom of which is fixedly connected to the top of the main body. A blower is fixedly connected to the top of the cover plate. A collection pipe is fixedly connected inside the main body. In this utility model, the blower creates negative pressure inside the main body, and the sealing assembly tightly seals the top of the main body to maintain the negative pressure environment. After the mixed material enters the main body through the feeding assembly, it flows towards the collection pipe under the guidance of negative pressure. As it flows through the blade ring, it is guided to form a vortex field.

Description

Technical Field

[0001] This utility model relates to the field of material separation technology, and in particular to a material separation device for a silo. Background Technology

[0002] A silo material separation device is a device used to separate different materials in a silo. It utilizes the physical properties of materials, such as differences in particle size, density, and shape, and uses screening, air separation, and centrifugation to separate different components in a mixture to meet the requirements for material purity and quality in the production process. Common types include vibrating screens, gravity rotary separators, and countercurrent separators.

[0003] Warehouse material separation devices are specialized equipment used for the precise classification, screening, and separation of materials in a warehouse environment. Their core function is to effectively separate different types of materials mixed together, or impurities and substandard products within the same material, based on the material's physical properties. This ensures the purity and uniformity of the output material. It solves the mixing problems that occur during storage and transportation of warehouse materials, providing single-component materials that meet requirements for subsequent production processing, material inventory, and quality inspection. Simultaneously, it removes dust, debris, and impurities from materials, reducing equipment wear and tear, and improving warehouse management efficiency and material utilization value. It is widely used in industries such as grain, chemicals, building materials, and mining that require the storage and processing of bulk materials.

[0004] Wear-resistant parts of the material separation device in the silo will wear out. The hopper lining and ceramic plates of the conveying pipe elbow are constantly eroded by materials and need to be replaced regularly, which affects the separation efficiency and limits the separation accuracy. When the particle size and density of the materials are small, coarse and fine powders will be mixed. The start-up and shutdown connection is complicated. Starting requires adjusting the negative pressure and sealing. After stopping, residual materials need to be cleaned, which will result in waste. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a material separation device for silos, which aims to improve and optimize separation accuracy and reduce the problem of coarse and fine mixtures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a material separation device for a silo, comprising a main body and a bottom plate, wherein a material distribution mechanism is provided inside the main body for separating materials, a stabilizing mechanism is provided at the bottom of the bottom plate for maintaining the stability of the device, and a sealing component is provided at the top of the main body;

[0007] The material distribution mechanism includes a cover plate, the bottom of which is fixedly connected to the top of the main body. An induced draft fan is fixedly connected to the top of the cover plate. A collection pipe is fixedly connected inside the main body. A blade ring is fixedly connected to the middle of the collection pipe. A hopper is fixedly connected to the bottom of the main body. A conveying pipe is connected to the bottom of the collection pipe. A collection bin is connected to the front end of the conveying pipe. A feeding assembly is provided on the upper front side of the main body.

[0008] As a further description of the above technical solution:

[0009] The stabilizing mechanism includes multiple cylinders, the tops of which are fixedly connected to the bottom of the base plate, the bottoms of which are fixedly connected to a chassis, the tops of which are fixedly connected to multiple reinforcing ribs, the tops of which are threaded with two screws, and the bottoms of which are fixedly connected with two nuts.

[0010] As a further description of the above technical solution:

[0011] The sealing assembly includes two latches, the rear sides of which are fixedly connected to the left and right sides of the cover plate, respectively, and clamps are fixedly connected to the top left and right sides of the main body, respectively.

[0012] As a further description of the above technical solution:

[0013] The feeding assembly includes a baffle plate 1, the rear side of which is fixedly connected to the upper front part of the main body. Multiple baffle plates 2 are fixedly connected to the front side of the baffle plate 1. A grid is fixedly connected inside each of the multiple baffle plates 2. An impact groove is opened at the bottom inner side of the grid.

[0014] As a further description of the above technical solution:

[0015] The blade ring is made of 16Mn steel to ensure precision and structural strength. The working surface of the blade ring is treated with tungsten carbide thermal spraying, which gives the blade excellent wear resistance in high-speed dusty airflow.

[0016] As a further description of the above technical solution:

[0017] The hopper is made of Q355B steel plate, which has sufficient strength and toughness. The inner surface of the hopper is covered with a hexagonal mesh wear-resistant lining, and the hexagonal mesh is filled with high-alumina wear-resistant castable to form an integral wear-resistant protective layer, which effectively resists the impact and wear of materials and facilitates local repair.

[0018] As a further description of the above technical solution:

[0019] The conveying pipe is made of seamless steel pipe, with silicon carbide ceramic sheets lined at its bends, which significantly improves wear resistance, reduces material conveying resistance, and ensures continuous and stable operation of the system.

[0020] As a further description of the above technical solution:

[0021] The protruding surface of the impact groove is lined with a ceramic plate to prevent material erosion and wear. The impact grooves are irregularly arranged to avoid impacting a single point.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a negative pressure is created inside the main body by the operation of an induced draft fan. The sealing component tightly seals the top of the main body to maintain the negative pressure environment. After the mixed material enters the main body through the feeding component, it flows to the collection pipe under the guidance of negative pressure. When it flows through the blade ring, it is guided to form a vortex field. Coarse particles are thrown towards the inner wall of the main body by centrifugal force and fall into the hopper. Fine powder gathers at the center of the vortex and enters the collection pipe. It is then transported to the collection bin through the conveying pipe. The stabilizing mechanism keeps the device stable through the support structure. This realizes the efficient classification and separation of the mixed material according to particle size and density, avoids the impact of external air interference and device shaking on the separation accuracy, ensures that coarse particles and fine powder are collected separately, and at the same time ensures the stability and continuity of the device operation, meeting the requirements of high efficiency and reliability of material separation.

[0024] 2. In this utility model, the top of the cylinder is fixed to the bottom of the base plate to provide vertical support for the device; the bottom of the cylinder is fixed to the chassis to increase the contact area with the ground and distribute the weight; the reinforcing rib connects the top of the chassis and the side wall of the cylinder to enhance the connection strength between the two; the screw passes through the chassis and cooperates with the ground mounting hole, and the nut is fixed to the bottom of the screw to fit against the ground, which restricts the displacement of the chassis. This achieves a reliable connection between the stabilizing mechanism and the main body of the device, effectively distributes the weight of the device, improves the overall structural strength, avoids component deformation during long-term support, and restricts the horizontal displacement of the device to ensure the stability of the device during the material separation process and prevents shaking from affecting the material flow trajectory. Attached Figure Description

[0025] Figure 1 This is a perspective view of a material separation device for a silo proposed in this utility model;

[0026] Figure 2 This is a front view of a material separation device for a silo proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 4 This is an exploded view of the material distribution mechanism of a material separation device for a silo according to the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 This is a cross-sectional view of the feeding component in a material separation device for a silo proposed in this utility model.

[0031] Legend:

[0032] 1. Main body; 2. Base plate; 3. Material distribution mechanism; 31. Cover plate; 32. Exhaust fan; 33. Collection pipe; 34. Blade ring; 35. Hopper; 36. Conveying pipe; 37. Collection bin; 38. Feeding assembly; 381. Baffle one; 382. Baffle two; 383. Grating; 384. Impact groove; 4. Stabilizing mechanism; 41. Cylinder; 42. Chassis; 43. Reinforcing rib; 44. Screw; 45. Nut; 5. Sealing assembly; 51. Lock; 52. Clamp. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0034] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a material separation device for a silo, comprising a main body 1 and a bottom plate 2. The main body 1 is provided with a material distribution mechanism 3 for separating materials. The bottom of the bottom plate 2 is provided with a stabilizing mechanism 4 for maintaining the stability of the device. The top of the main body 1 is provided with a sealing component 5.

[0035] The material distribution mechanism 3 includes a cover plate 31, the bottom of which is fixedly connected to the top of the main body 1. A blower 32 is fixedly connected to the top of the cover plate 31. A collection pipe 33 is fixedly connected inside the main body 1. A blade ring 34 is fixedly connected to the middle of the collection pipe 33. A hopper 35 is fixedly connected to the bottom of the main body 1. A conveying pipe 36 is connected to the bottom of the collection pipe 33. A collection bin 37 is connected to the front end of the conveying pipe 36. A feeding assembly 38 is provided on the upper front side of the main body 1.

[0036] Specifically, firstly, the induced draft fan 32 in the material distribution mechanism 3 is started. The induced draft fan 32 is fixedly connected to the top of the cover plate 31, and the bottom of the cover plate 31 is fixedly connected to the top of the main body 1. After the induced draft fan 32 runs, a negative pressure environment is formed inside the main body 1. At the same time, the top of the main body 1 is sealed by the sealing component 5 to prevent external air from entering and disrupting the negative pressure. Through the negative pressure generation effect of the induced draft fan 32 and the sealing effect of the sealing component 5, a stable negative pressure field is constructed inside the main body 1.

[0037] Subsequently, the mixture is conveyed into the body 1 through the feeding assembly 38, which is located in the upper front part of the body 1. Under the guidance of the negative pressure inside the body 1, the mixture flows towards the collection pipe 33 fixedly connected inside the body 1. When the mixture flows through the blade ring 34 fixedly connected in the middle of the collection pipe 33, the blade ring 34 changes the direction of movement of the mixture, causing the mixture to change from linear motion to rotational motion, forming a vortex field. Through the material conveying action of the feeding assembly 38 and the guiding action of the blade ring 34;

[0038] Under the action of the eddy current field, the coarse particles with larger particle size and higher density in the mixture are thrown towards the inner wall of the main body 1 due to the large centrifugal force, slide down the inner wall, and fall into the hopper 35 fixedly connected to the bottom of the main body 1; the fine powder with smaller particle size and lower density in the mixture is concentrated in the central area of ​​the eddy current field due to the smaller centrifugal force, enters the inside of the collection pipe 33, and is received by the coarse particles in the hopper 35 and guided by the fine powder in the collection pipe 33.

[0039] Finally, the conveying pipe 36 connected to the bottom of the collecting pipe 33 conveys the fine powder in the pipe to the collecting bin 37 connected to the front end of the conveying pipe 36. The hopper 35 temporarily stores the coarse particles inside. At the same time, the stabilizing mechanism 4 set at the bottom of the bottom plate 2 keeps the device stable as a whole, and avoids the device shaking during the separation process from affecting the material flow trajectory. The fine powder conveying action of the conveying pipe 36 and the stabilizing action of the stabilizing mechanism 4 are combined.

[0040] Reference Figure 3 - Figure 5 The stabilizing mechanism 4 includes multiple cylinders 41, the top of each cylinder 41 is fixedly connected to the bottom of the base plate 2, the bottom of each cylinder 41 is fixedly connected to a base plate 42, the top of each base plate 42 is fixedly connected to multiple reinforcing ribs 43, the top of each base plate 42 is threaded with two screws 44, and the bottom of each screw 44 is fixedly connected with two nuts 45.

[0041] Specifically, firstly, the top ends of multiple cylinders 41 in the stabilizing mechanism 4 are fixedly connected to the bottom of the base plate 2. The cylinders 41 are set perpendicular to the bottom surface of the base plate 2. Through the fixed connection between the cylinders 41 and the base plate 2, the initial connection between the stabilizing mechanism 4 and the device is realized, laying the foundation for the subsequent assembly of the support structure.

[0042] Subsequently, multiple chassis 42 are fixedly connected to the bottom of multiple cylinders 41 respectively. The chassis 42 are arranged in a horizontal state to increase the contact area between the cylinders 41 and the ground. The vertical support of the cylinders 41 and the expansion of the contact area of ​​the chassis 42 are combined.

[0043] Next, multiple reinforcing ribs 43 are fixedly connected to the top of multiple chassis 42 respectively. One end of the reinforcing rib 43 is connected to the top of the chassis 42, and the other end is connected to the side wall of the cylinder 41. Through the fixed connection between the reinforcing rib 43 and the chassis 42 and the cylinder 41, the structural strength at the connection between the cylinder 41 and the chassis 42 is enhanced, and the relative deformation between the cylinder 41 and the chassis 42 is avoided during long-term support. The structural reinforcement of the reinforcing rib 43 and the support of the cylinder 41 are achieved through the structural reinforcement of the reinforcing rib 43 and the support of the cylinder 41.

[0044] Finally, two screws 44 are threaded onto the top of each chassis 42, with the screws 44 passing through the chassis 42 and extending into the pre-set mounting holes in the ground. Then, two nuts 45 are fixedly connected to the bottom of the two screws 44, with the nuts 45 in contact with the ground. Through the threaded connection between the screws 44 and the chassis 42, and the fixed connection between the nuts 45 and the screws 44, the chassis 42 is firmly fixed to the ground, limiting the horizontal displacement of the chassis 42. Through the fixing effect of the screws 44 and the limiting effect of the nuts 45, combined with the support and reinforcement of the cylinder 41, chassis 42, and reinforcing ribs 43, the chassis 42 and chassis 42 are reinforced.

[0045] Reference Figure 3 - Figure 5 The sealing assembly 5 includes two latches 51, the rear sides of which are fixedly connected to the left and right sides of the cover plate 31 respectively. The top left and right sides of the main body 1 are fixedly connected to clamps 52 respectively. The feeding assembly 38 includes a first baffle 381, the rear side of which is fixedly connected to the upper middle part of the front side of the main body 1. Multiple second baffles 382 are fixedly connected to the front side of the first baffle 381. The interior of each of the multiple second baffles 382 is fixedly connected to a grid 383. An impact groove 384 is opened at the bottom of the inner side of the grid 383. The blade ring 34 is made of 16Mn steel to ensure precision and structural strength. The working surface of the blade ring 34 is treated with tungsten carbide thermal spraying to give the blade excellent wear resistance in high-speed dusty airflow.

[0046] Specifically, firstly, when assembling the sealing assembly 5, the two latches 51 are fixedly connected to the left and right sides of the cover plate 31 respectively, and the two clamps 52 are fixedly connected to the left and right sides of the top of the main body 1 respectively. After the cover plate 31 is closed to the top of the main body 1, the clamps 52 are operated to engage with the latches 51. Through the engaging action of the latches 51 and the clamps 52, a tight connection is achieved between the top of the main body 1 and the cover plate 31, preventing external air from entering the interior of the main body 1 and disrupting the negative pressure environment.

[0047] Subsequently, the mixture enters the feeding assembly 38. In the feeding assembly 38, the rear side of the first baffle 381 is fixedly connected to the upper middle part of the front side of the main body 1. Multiple second baffles 382 are fixedly connected to the front side of the first baffle 381. The material first contacts the second baffle 382. The second baffle 382 forms an initial obstruction and diversion of the material, so that the material flows evenly to the grid 383 fixedly connected inside the second baffle 382. The grid 383 further disperses the material. At the same time, the impact groove 384 opened at the bottom of the inner side of the grid 383 receives the impact of the material. Through the diversion effect of the second baffle 382 and the dispersion effect of the grid 383, combined with the impact receiving effect of the impact groove 384;

[0048] When the dispersed material enters the interior of the main body 1 and flows through the blade ring 34, the blade ring 34 is made of 16Mn steel. Its structural precision and strength meet the requirements of guiding the airflow. At the same time, the working surface of the blade ring 34 is treated with tungsten carbide thermal spraying. Under the impact of high-speed dust-laden airflow, the tungsten carbide coating prevents the material from directly abrading the surface of the blade ring 34. Through the support of the steel structure of the blade ring 34 and the wear resistance of the tungsten carbide coating, the blade ring 34 is able to guide the airflow to form a vortex in a long-term stable manner. This is combined with the negative pressure environment guaranteed by the sealing component 5 and the feeding component 38.

[0049] Reference Figure 4 The hopper 35 is made of Q355B steel plate, which has sufficient strength and toughness. The inner surface of the hopper 35 is covered with a hexagonal mesh wear-resistant lining, and the hexagonal mesh is filled with high-alumina wear-resistant castable to form an integral wear-resistant protective layer, which effectively resists the impact and wear of materials and facilitates local repair. The conveying pipe 36 is made of seamless steel pipe, and its bends are lined with silicon carbide ceramic sheets, which significantly improves wear resistance, reduces material conveying resistance, and ensures continuous and stable operation of the system. The protruding surface of the impact groove 384 is lined with ceramic plates to prevent material scouring and wear. The impact groove 384 is irregularly arranged to avoid impacting a single point.

[0050] Specifically, firstly, after the mixture is separated, the coarse particles slide down the inner wall of the main body 1 into the hopper 35. The hopper 35 is made of Q355B steel plate, and its structural strength and toughness support the temporary storage and accumulation of coarse particles. At the same time, the hexagonal mesh wear-resistant lining laid on the inner surface of the hopper 35 and the high-alumina wear-resistant castable filling inside the lining form an integral wear-resistant protective layer. When the coarse particles slide in the hopper 35, the wear-resistant protective layer prevents the material from directly impacting and wearing down the steel plate of the hopper 35. Through the supporting role of the steel plate structure of the hopper 35 and the protective role of the integral wear-resistant protective layer;

[0051] Subsequently, the separated fine powder enters the collection pipe 33 and is transported to the collection bin 37 through the conveying pipe 36 connected to the bottom of the collection pipe 33. The conveying pipe 36 is made of seamless steel pipe, and its structural integrity ensures smooth flow of fine powder. At the same time, the silicon carbide ceramic sheet lining the elbow of the conveying pipe 36 enhances the wear resistance of the elbow and avoids long-term scouring of the pipe by fine powder at the elbow, which would cause pipe wear. The smooth surface of the ceramic sheet also reduces the resistance of fine powder conveying. The conveying effect of the seamless steel pipe structure of the conveying pipe 36 and the wear resistance and drag reduction effect of the silicon carbide ceramic sheet at the elbow are combined.

[0052] Before the material enters the main body 1, the mixed material first contacts the impact groove 384 at the bottom of the inner side of the grid 383 in the feeding assembly 38. The protruding surface of the impact groove 384 is lined with a ceramic plate. When the material impacts, the ceramic plate blocks the erosion and wear. At the same time, the impact groove 384 is irregularly arranged, which disperses the impact points of the material and avoids the material from concentrating on a certain point and causing excessive wear in a local area. Through the protective effect of the ceramic plate of the impact groove 384 and the dispersion effect of the irregular arrangement, the impact energy of the material is dispersed and received, and the grid 383 is protected against wear. This is combined with the wear-resistant design of the hopper 35 and the conveying pipe 36.

[0053] Working Principle: First, the device is assembled and the stabilizing mechanism 4 is installed. The tops of multiple cylinders 41 in the stabilizing mechanism 4 are fixedly connected to the bottom of the base plate 2. The cylinders 41 are set perpendicular to the bottom surface of the base plate 2. Through the fixed connection between the cylinders 41 and the base plate 2, the initial connection between the stabilizing mechanism 4 and the device is achieved, laying the foundation for the subsequent assembly of the support structure. Then, multiple base plates 42 are fixedly connected to the bottoms of the multiple cylinders 41. The base plates 42 are arranged horizontally to increase the contact area between the cylinders 41 and the ground. Through the vertical support of the cylinders 41 and the expansion of the contact area of ​​the base plates 42, the weight of the device is distributed and transferred to the ground, reducing the local pressure of the device on the ground. Next, multiple reinforcing ribs 43 are fixedly connected to the tops of the multiple base plates 42. One end of the reinforcing rib 43 is connected to the top of the base plate 42, and the other end is connected to the side wall of the cylinder 41. Through the reinforcing ribs 43 and the base plates 42 and cylinders 41, the device achieves a unified connection. The fixed connection enhances the structural strength of the connection between the cylinder 41 and the chassis 42, preventing relative deformation between the cylinder 41 and the chassis 42 during long-term support. Through the structural reinforcement of the reinforcing rib 43 and the support of the cylinder 41, the overall structural strength of the stabilizing mechanism 4 is improved. Finally, two screws 44 are threaded to the top of each chassis 42, with the screws 44 penetrating the chassis 42 and extending into the pre-set mounting holes in the ground. Then, two nuts 45 are fixedly connected to the bottom of the two screws 44, with the nuts 45 in contact with the ground. Through the threaded connection between the screws 44 and the chassis 42, and the fixed connection between the nuts 45 and the screws 44, the chassis 42 is firmly fixed to the ground, limiting the horizontal displacement of the chassis 42. Through the fixing effect of the screws 44 and the limiting effect of the nuts 45, combined with the support and reinforcement of the cylinder 41, chassis 42, and reinforcing rib 43, the installation of the stabilizing mechanism 4 is completed.

[0054] After the installation of the stabilizing mechanism 4 is completed, the sealing component 5 is assembled and the main body 1 is sealed. When assembling the sealing component 5, the two latches 51 are fixedly connected to the left and right sides of the cover plate 31 respectively, and the two clamps 52 are fixedly connected to the left and right sides of the top of the main body 1 respectively. After the cover plate 31 is closed to the top of the main body 1, the clamps 52 are operated to engage with the latches 51. Through the engaging action of the latches 51 and the clamps 52, the top of the main body 1 is tightly connected to the cover plate 31, preventing external air from entering the interior of the main body 1 and disrupting the negative pressure environment formed later. The assembly of the sealing component 5 is completed, ensuring that the internal sealing performance of the main body 1 meets the standards.

[0055] After the sealing component 5 is assembled, the material separation process is started by starting the material distribution mechanism 3. The induced draft fan 32 in the material distribution mechanism 3 is started. The induced draft fan 32 is fixedly connected to the top of the cover plate 31, and the bottom of the cover plate 31 is fixedly connected to the top of the main body 1. After the induced draft fan 32 runs, a negative pressure environment is formed inside the main body 1. At the same time, the top of the main body 1 is sealed by the assembled sealing component 5 to prevent external air from entering and disrupting the negative pressure. The negative pressure generation effect of the induced draft fan 32 and the sealing effect of the sealing component 5 are combined.

[0056] After a stable negative pressure field is formed inside the main body 1, the mixed material is conveyed into the main body 1 through the feeding assembly 38. The feeding assembly 38 is located in the upper-middle part of the front side of the main body 1. The mixed material first enters the feeding assembly 38. The rear side of the first baffle 381 in the feeding assembly 38 is fixedly connected to the upper-middle part of the front side of the main body 1. Multiple second baffles 382 are fixedly connected to the front side of the first baffle 381. The material first contacts the second baffles 382. The second baffles 382 form an initial obstruction and diversion of the material, so that the material flows evenly to the grid 383 fixedly connected inside the second baffle 382. The grid 383 further disperses the material, while the impact groove 384 opened at the bottom of the inner side of the grid 383 receives the impact of the material. The protruding surface of the impact groove 384 is lined with a ceramic plate. When the material impacts, the ceramic plate blocks the erosion and wear. At the same time, the impact groove 384 is irregularly arranged to disperse the impact points of the material and avoid the material from concentrating on a certain point and causing excessive wear in a local area. Through the diversion effect of the baffle 382 and the dispersion effect of the grid 383, combined with the impact receiving effect of the impact groove 384 and the protection and dispersion effect of the ceramic plate and the irregular arrangement;

[0057] After being dispersed by the feeding assembly 38, the mixture flows towards the collection pipe 33 fixedly connected inside the main body 1 under the guidance of the negative pressure inside the main body 1. When the mixture flows through the blade ring 34 fixedly connected in the middle of the collection pipe 33, the blade ring 34 is made of 16Mn steel, and its structural precision and strength meet the requirements of guiding the airflow. At the same time, the working surface of the blade ring 34 is treated with tungsten carbide thermal spraying. Under the impact of high-speed dust-laden airflow, the tungsten carbide coating blocks the direct wear of the material on the surface of the blade ring 34. The blade ring 34 changes the direction of movement of the mixture, making the mixture change from linear motion to rotational motion, forming a vortex field. Through the material conveying action of the feeding assembly 38 and the guiding action of the blade ring 34, combined with the steel structure support of the blade ring 34 and the wear resistance of the tungsten carbide coating, the blade ring 34 ensures that the airflow is stably guided to form a vortex in the long term.

[0058] Under the action of the eddy current field, the coarse particles with larger size and higher density in the mixture are thrown towards the inner wall of the main body 1 due to the large centrifugal force, slide down the inner wall, and fall into the hopper 35 fixedly connected to the bottom of the main body 1; the fine powder with smaller size and lower density in the mixture is concentrated in the central area of ​​the eddy current field due to the smaller centrifugal force and enters the inside of the collection pipe 33. The hopper 35 is made of Q355B steel plate, and its structural strength and toughness support the temporary storage and accumulation of coarse particles. At the same time, the wear-resistant lining of the tortoise shell mesh laid on the inner surface of the hopper 35 and the high-alumina wear-resistant castable filling inside the lining form an integral wear-resistant protective layer. When the coarse particles slide in the hopper 35, the wear-resistant protective layer prevents the material from directly impacting and wearing the steel plate of the hopper 35. Through the coarse particle receiving function of the hopper 35 and the fine powder guiding function of the collection pipe 33, combined with the structural support function of the steel plate of the hopper 35 and the protective function of the integral wear-resistant protective layer;

[0059] The bottom of the collecting pipe 33 is connected to the conveying pipe 36, which transports the fine powder inside the pipe to the collecting bin 37 connected to the front end of the conveying pipe 36. The conveying pipe 36 is made of seamless steel pipe, and its structural integrity ensures smooth flow of fine powder. At the same time, the silicon carbide ceramic sheet lining the bend of the conveying pipe 36 enhances the wear resistance of the bend and avoids long-term erosion of the pipe by fine powder at the bend, which would cause pipe wear. The smooth surface of the ceramic sheet also reduces the resistance of fine powder conveying. Through the fine powder conveying action of the conveying pipe 36 and the wear-resistant and drag-reducing effect of the silicon carbide ceramic sheet at the bend, the continuous and stable conveying of fine powder is achieved. The hopper 35 temporarily stores the coarse particles inside. After the coarse particles accumulate to a preset amount, they are discharged uniformly. At the same time, the stabilizing mechanism 4 set at the bottom of the base plate 2 continuously maintains the overall stability of the device and avoids the device shaking during the separation process, which would affect the material flow trajectory. Through the fine powder conveying action of the conveying pipe 36 and the stabilizing effect of the stabilizing mechanism 4, combined with the coarse particle temporary storage function of the hopper 35, the device achieves the desired effect.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material separation device for a silo, comprising a main body (1) and a bottom plate (2), characterized in that: The main body (1) is provided with a material distribution mechanism (3) inside, which is used to separate materials. The bottom of the base plate (2) is provided with a stabilizing mechanism (4) which is used to maintain the stability of the device. The top of the main body (1) is provided with a sealing component (5). The material distribution mechanism (3) includes a cover plate (31), the bottom of which is fixedly connected to the top of the main body (1), and a blower (32) is fixedly connected to the top of the cover plate (31). A collection pipe (33) is fixedly connected inside the main body (1), and a blade ring (34) is fixedly connected to the middle of the collection pipe (33). A hopper (35) is fixedly connected to the bottom of the main body (1), and a conveying pipe (36) is connected to the bottom of the collection pipe (33). A collection bin (37) is connected to the front end of the conveying pipe (36). A feeding assembly (38) is provided on the upper front side of the main body (1).

2. The material separation device for a silo according to claim 1, characterized in that: The stabilizing mechanism (4) includes multiple cylinders (41), the tops of which are fixedly connected to the bottom of the base plate (2), the bottoms of which are fixedly connected to a base plate (42), the tops of which are fixedly connected to multiple reinforcing ribs (43), the tops of which are threaded with two screws (44), and the bottoms of which are fixedly connected with two nuts (45).

3. The material separation device for a silo according to claim 1, characterized in that: The sealing assembly (5) includes two latches (51), the rear sides of which are fixedly connected to the left and right sides of the cover plate (31), and clamps (52) are fixedly connected to the top left and right sides of the main body (1).

4. The material separation device for a silo according to claim 1, characterized in that: The feeding assembly (38) includes a baffle (381), the rear side of which is fixedly connected to the upper front side of the main body (1). A plurality of baffles (382) are fixedly connected to the front side of the baffle (381). A grid (383) is fixedly connected inside each of the plurality of baffles (382). An impact groove (384) is provided at the bottom inner side of the grid (383).

5. The material separation device for a silo according to claim 1, characterized in that: The blade ring (34) is made of 16Mn steel to ensure precision and structural strength. The working surface of the blade ring (34) is treated with tungsten carbide thermal spraying to give the blade excellent wear resistance in high-speed dusty airflow.

6. The material separation device for a silo according to claim 1, characterized in that: The hopper (35) is made of Q355B steel plate, which has sufficient strength and toughness. The inner surface of the hopper (35) is covered with a hexagonal mesh wear-resistant lining. The hexagonal mesh is filled with high-alumina wear-resistant castable to form an integral wear-resistant protective layer, which effectively resists the impact and wear of materials and facilitates local repair.

7. The material separation device for a silo according to claim 1, characterized in that: The conveying pipe (36) is made of seamless steel pipe, and its bends are lined with silicon carbide ceramic sheets, which significantly improves wear resistance, reduces material conveying resistance, and ensures continuous and stable operation of the system.

8. A material separation device for a silo according to claim 4, characterized in that: The protruding surface of the impact groove (384) is lined with a ceramic plate to prevent material from eroding and wearing. The impact groove (384) is irregularly arranged to avoid impacting a single point.

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