Three-phase shunt sieve device

Abstract

The utility model discloses a three-phase shunting screen device, which relates to the technical field of screening equipment and comprises a rack, a shunting screen box is arranged on the rack, a feeding port is arranged at the top of the shunting screen box, a screening surface of the shunting screen box is obliquely arranged, and a left hopper and a right hopper are arranged at two ends of the shunting screen box. Oversize materials in the flow dividing screen box are discharged from the left hopper and the right hopper, and a discharging hopper is arranged at the bottom of the flow dividing screen box and used for discharging undersize materials in the flow dividing screen box; a plurality of screening shafts are rotationally arranged in the flow dividing screening box side by side, a plurality of screening piece assemblies protruding in the radial direction of the screening shafts are arranged on the screening shafts, the screening shafts are connected with a rotary driving device, the rotating directions of the multiple screening shafts are the same, and the screening device can achieve three-phase separation and collection of 3D heavy materials, 2D light materials and powder.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, and particularly relates to a three-phase shunt sieve device. Background Art

[0002] In modern industrial production, the screening and separation of materials are key links indispensable to multiple industries. Especially in fields such as chemical industry, food, minerals, and pharmaceuticals, there are strict requirements for the particle size, purity, and composition distribution of materials. Traditional screening equipment often adopts a single screening method, such as a planar vibrating screen, a drum screen, etc. When dealing with complex materials, such as a mixture containing heavy materials, light materials, and powders, it is often difficult to achieve an efficient and precise three-phase separation effect.

[0003] Specifically, due to their large volume and density, heavy materials are prone to clogging the sieve holes or affecting the screening efficiency during the screening process; light materials may be difficult to effectively separate due to factors such as wind force and vibration; while powdery materials are prone to flying, causing environmental pollution and material loss. Therefore, it is particularly important to develop a screening device that can simultaneously process and effectively separate these three types of materials with different physical properties.

[0004] Although there are already some multifunctional screening equipment on the market, most of them have problems such as complex structure, high energy consumption, difficult maintenance, and unsatisfactory separation effect. Especially when dealing with three-phase mixed materials, it often needs to be achieved through multi-stage screening or combining different screening equipment, which not only increases the equipment cost and floor area, but also reduces the production efficiency and screening accuracy. Summary of the Invention

[0005] Based on such a background, the utility model proposes a three-phase shunt sieve device. Through the unique inclined setting of the screening surface and the synergistic effect of multiple sieve shafts and sieve plate assemblies, this device can achieve efficient three-phase separation of 3D heavy materials, 2D light materials, and powders. This separation method not only improves the screening efficiency but also ensures the separation accuracy, meeting the strict requirements of different materials for screening accuracy.

[0006] In order to achieve the above object, the embodiment of the utility model specifically adopts the following technical solution: A three-phase shunt sieve device includes a frame, a shunt sieve box is arranged on the frame, a feeding port is opened at the top of the shunt sieve box, the screening surface of the shunt sieve box is inclined, left and right hoppers are arranged at both ends of the shunt sieve box, the oversize materials in the shunt sieve box are discharged from the left and right hoppers, a blanking hopper is arranged at the bottom of the shunt sieve box, and the blanking hopper is used for discharging the undersize materials in the shunt sieve box; a plurality of sieve shafts are rotatably arranged side by side in the shunt sieve box, sieve plate assemblies protruding along the radial direction of the sieve shaft are arranged on the sieve shafts, the sieve shafts are connected with a rotary driving device, and the rotation directions of the plurality of sieve shafts are the same.

[0007] To further optimize the present utility model, the following technical solutions can be preferably selected:

[0008] Preferably, one end of the shunt sieve box is hinged to the frame, and a sieve surface inclination adjusting mechanism is arranged at the other end of the shunt sieve box. The sieve surface inclination adjusting mechanism includes an outer tube and an inner tube sleeved with each other. The bottom of the outer tube is hinged to the frame, and the top of the inner tube is hinged to the bottom of the shunt sieve box. The relative positions between the outer tube and the inner tube can be adjusted.

[0009] Preferably, adjusting through holes are formed in corresponding positions on the outer side walls of the outer tube and the inner tube along the length direction, and positioning bolts are arranged in the adjusting through holes.

[0010] Preferably, an inner spacer sleeve is arranged at a position on the sieve shaft corresponding to the position between two adjacent sieve blade assemblies. The sieve blade assembly includes a disc plate and a disc knife detachably arranged on the sieve shaft. Axial holes matched with the sieve shaft are formed in the disc plate and the disc knife, and key grooves are arranged on the axial holes.

[0011] Preferably, the disc plates and the disc knives have matching outer shapes, and both the disc plates and the disc knives are Reuleaux triangles.

[0012] Preferably, the disc plates and the disc knives on two adjacent sieve shafts are staggered and connected.

[0013] Preferably, a driving gear is arranged at one end of the sieve shaft. The driving gears between two adjacent sieve shafts are driven by a chain, and one of the sieve shafts is connected to a variable frequency motor.

[0014] The three-phase shunt sieve device disclosed by the present utility model has remarkable beneficial effects in the technical field of screening equipment, which are mainly reflected in the following aspects:

[0015] (1) High-efficiency three-phase separation: Through the unique inclined setting of the screening surface and the synergistic effect of multiple sieve shafts and sieve blade assemblies, the device can achieve high-efficiency three-phase separation of 3D heavy material, 2D light material and powder. This separation method not only improves the screening efficiency, but also ensures the separation accuracy, meeting the strict requirements of different materials for screening accuracy.

[0016] (2) Structural optimization and blockage reduction: The inclined design of the screening surface helps the natural flow of materials during the screening process, reducing the accumulation and blockage of materials on the sieve mesh. At the same time, the structure of the sieve blade assembly protruding in the radial direction of the sieve shaft increases the screening area, improves the screening efficiency, and effectively prevents the blockage of materials during the screening process.

[0017] (3) Flexible adjustment and strong adaptability: By adjusting parameters such as the rotation speed of the sieve shaft, the spacing and inclination angle of the sieve plate assembly, this device can flexibly adapt to the screening requirements of different materials. This adjustability enables the device to maintain high screening efficiency and separation accuracy when processing materials with different physical properties.

[0018] (4) Energy conservation, emission reduction and reduced operating costs: This device uses a rotary drive device to drive the sieve shaft to rotate. Compared with traditional vibrating screens and other equipment, it consumes less energy and produces less noise. At the same time, due to high screening efficiency and high separation accuracy, the number of times of repeated screening and processing of materials is reduced, thus reducing the overall operating costs.

[0019] (5) Easy maintenance and long service life: The device has a reasonable structure design, is easy to disassemble and clean, reducing the difficulty and cost of maintenance. At the same time, components such as the sieve plate assembly and the sieve shaft manufactured using high-quality materials and precision processing technology have high wear resistance and corrosion resistance, extending the service life of the equipment.

[0020] In summary, the three-phase shunt sieve device disclosed in this utility model shows significant beneficial effects in terms of screening efficiency, separation accuracy, adaptability, energy conservation and emission reduction, and ease of maintenance, providing a more efficient and reliable solution for material screening in modern industrial production. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the three-phase shunt sieve device in Embodiment 1;

[0022] Figure 2 It is the front view of the three-phase shunt sieve device in Embodiment 1;

[0023] Figure 3 It is the top view of the three-phase shunt sieve device in Embodiment 1;

[0024] Figure 4 It is the internal structure schematic diagram of the shunt sieve box in Embodiment 1;

[0025] Figure 5 It is the three-dimensional layout schematic of the sieve shaft in the shunt sieve box in Embodiment 1 Figure 1 。

[0026] Figure 6 It is the three-dimensional layout schematic of the sieve shaft in the shunt sieve box in Embodiment 1 Figure 2 ;

[0027] Figure 7 It is the three-dimensional structure schematic diagram of the sieve shaft in Embodiment 1.

[0028] In the figure: 1, frame; 2, shunt sieve box; 3, feeding port; 4, left hopper; 5, right hopper; 6, discharge hopper; 7, outer tube; 8, inner tube; 9, adjustment through-hole; 10, positioning bolt; 11, sieve shaft; 12, sieve plate assembly; 13, variable-frequency motor; 14, inner spacer sleeve; 15, disc plate; 16, disc knife; 17, drive gear; 18, chain. Detailed implementation manners

[0029] The preferred implementation manners of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0030] Example 1: As Figure 1-7 shown, a three-phase shunt sieve device includes a frame 1. A shunt sieve box 2 is installed on the frame. A feeding port 3 is opened at the top of the shunt sieve box. The screening surface of the shunt sieve box is inclined. Left hoppers 4 and right hoppers 5 are installed at both ends of the shunt sieve box. The oversize materials in the shunt sieve box are discharged from the left hopper and the right hopper. Specifically, the flaky and light 2D materials are transmitted upward along the sieve surface of the shunt sieve box and discharged into the right hopper. The heavy 3D materials slide down along the sieve surface of the shunt sieve box under the action of gravity and are discharged into the left hopper. A discharge hopper 6 is installed at the bottom of the shunt sieve box. The discharge hopper is used to discharge the undersize materials (dust) in the shunt sieve box; A plurality of sieve shafts 11 are rotatably installed side by side in the shunt sieve box. A plurality of sieve plate assemblies 12 protruding along the radial direction of the sieve shaft are installed on the sieve shaft. The sieve shaft is connected with a rotation driving device. The rotation directions of the plurality of sieve shafts 11 are the same.

[0031] As a preferred implementation manner, one end of the shunt sieve box 2 is hinged to the frame, and a sieve surface inclination adjusting mechanism is installed at the other end of the shunt sieve box. The sieve surface inclination adjusting mechanism includes an outer tube 7 and an inner tube 8 which are sleeved with each other. The bottom of the outer tube is hinged to the frame, and the top of the inner tube is hinged to the bottom of the shunt sieve box. The relative positions between the outer tube and the inner tube can be adjusted. The sieve surface inclination adjusting mechanism has the following advantages: (1) Enhance adaptability: By hinging one end of the shunt sieve box and setting the sieve surface inclination adjusting mechanism, users can flexibly adjust the inclination angle of the sieve surface according to the characteristics of the materials and the screening requirements. This adjustability enables the device to more widely adapt to the screening of different materials, improving the versatility and flexibility of the equipment. (2) Optimize the screening effect: An appropriate sieve surface inclination angle helps the natural flow and distribution of materials during the screening process, reducing the accumulation and blockage of materials on the sieve mesh, thereby improving the screening efficiency and separation accuracy.

[0032] As a preferred embodiment, adjustment through holes 9 are provided along the length direction at corresponding positions on the outer side walls of the outer tube 7 and the inner tube 8, and positioning bolts 10 are installed in the adjustment through holes. The design of the outer tube, inner tube, and positioning bolts has the following advantages: (1) Simplify the adjustment process: By providing adjustment through holes on the outer side walls of the outer tube and the inner tube and setting positioning bolts, users can precisely control the relative position between the outer tube and the inner tube by adjusting the position of the positioning bolts, thereby achieving fine adjustment of the inclination angle of the sieve surface. This design simplifies the adjustment process and improves the accuracy and convenience of adjustment. (2) Enhance stability: The positioning bolts not only fix the relative position between the outer tube and the inner tube but also enhance the overall stability of the sieve surface inclination adjustment mechanism, ensuring that the sieve surface can maintain a stable inclination angle during the screening process.

[0033] As a preferred embodiment, an inner spacer sleeve 14 is installed at the position corresponding to between two adjacent sieve plate assemblies on the sieve shaft 11. The sieve plate assembly includes a disc plate 15 and a disc knife 16 that are detachably installed on the sieve shaft. The disc plate and the disc knife are provided with shaft holes that cooperate with the sieve shaft, and key grooves are installed on the shaft holes. The optimization of the sieve plate assembly on the sieve shaft has the following design advantages: (1) Improve screening efficiency: By setting an inner spacer sleeve between two adjacent sieve plate assemblies on the sieve shaft, it helps to reduce friction and wear between the sieve plate assemblies, while maintaining an appropriate spacing between the sieve plate assemblies to ensure that the material can pass through the sieve smoothly. In addition, the inner spacer sleeve also plays a certain supporting role, enhancing the rigidity and stability of the sieve shaft. (2) Facilitate maintenance and replacement: The disc plate and the disc knife are designed to be detachable and cooperate with the sieve shaft through the shaft holes and key grooves, enabling users to conveniently disassemble and replace the sieve plate assembly. This design reduces maintenance costs and time and improves the reliability and service life of the equipment.

[0034] As a preferred embodiment, the disc plate 15 and the disc knife 16 have matching outer shapes, and both the disc plate and the disc knife are Reuleaux triangles. The outer shape design of the disc plate and the disc knife has the following design advantages: (1) Optimize the screening effect: The disc plate and the disc knife adopt the Reuleaux triangle outer shape, which has unique geometric properties and can generate a more uniform screening force and a more stable material flow during the screening process. At the same time, the Reuleaux triangle outer shape also helps to reduce the accumulation and blockage of materials on the sieve mesh, improving the screening efficiency and separation accuracy. (2) Enhance wear resistance: The Reuleaux triangle outer shape also has a certain wear resistance, which can reduce the wear and damage of the sieve plate assembly during the screening process and extend the service life of the sieve plate assembly.

[0035] The disc plates 15 and disc knives 16 on the two adjacent screen shafts 11 are staggered and connected. The design of staggered disc plates and disc knives on the two adjacent screen shafts has the following advantages: (1) Enhanced screening effect: The staggered design of the disc plates and disc knives enables the two adjacent screen shafts to produce more complex material movement trajectories when rotating. This staggered arrangement helps the material to be more fully dispersed and mixed during the screening process, thereby improving the uniformity and efficiency of the screening. At the same time, the staggered screen assembly can also reduce the accumulation and blockage of materials on the screen to a certain extent, and improve the smoothness of the screening. (2) Improved separation accuracy: Since the materials are more fully dispersed and mixed during the screening process, materials of different particle sizes and densities are more easily separated. Therefore, this staggered design helps to improve the separation accuracy of the three-phase diversion screen device, so that the screening results are more in line with production requirements.

[0036] A drive gear 17 is installed at one end of the screen shaft 11, and the drive gears of the two adjacent screen shafts are driven by a chain 18, and one of the screen shafts is connected to a variable frequency motor 13. The optimization of the screen shaft drive mode has the following advantages: (1) Synchronous rotation is achieved: by driving the gear and chain transmission, the two adjacent screen shafts can maintain synchronous rotation. This synchronous rotation not only ensures the stability and continuity of the screening process, but also helps to improve the screening efficiency and separation accuracy. Because when the screen shafts rotate synchronously, the movement trajectory of the material on the screen is more regular, reducing the confusion and interference caused by the asynchronous screen shaft. (2) Flexible adjustment of the speed: Using a variable frequency motor as the driving source, the speed of the screen shaft can be flexibly adjusted according to the characteristics of the material and the screening requirements. This adjustability enables the device to adapt to the screening requirements of different materials more widely, improving the versatility and flexibility of the equipment. At the same time, the use of variable frequency motors also helps to reduce energy consumption and noise, and improve the environmental performance of the equipment.

[0037] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to these processes, articles, or apparatus / devices.

[0040] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A three-phase shunt sieve device, comprising a frame, characterized in that: A shunt sieve box is provided on the frame. A feeding port is formed at the top of the shunt sieve box. The screening surface of the shunt sieve box is inclined. Left and right hoppers are arranged at both ends of the shunt sieve box. Oversize materials in the shunt sieve box are discharged from the left and right hoppers. A discharge hopper is arranged at the bottom of the shunt sieve box, and the discharge hopper is used to discharge the undersize materials in the shunt sieve box. A plurality of sieve shafts are rotatably arranged side by side in the shunt sieve box. A plurality of sieve plate assemblies protruding along the radial direction of the sieve shaft are arranged on the sieve shaft. The sieve shaft is connected with a rotation driving device, and the rotation directions of the plurality of sieve shafts are the same.

2. The three-phase shunt sieve device according to claim 1, wherein: One end of the shunt sieve box is hinged to the frame, and a screening surface inclination adjusting mechanism is arranged at the other end of the shunt sieve box. The screening surface inclination adjusting mechanism includes an outer tube and an inner tube sleeved with each other. The bottom of the outer tube is hinged to the frame, and the top of the inner tube is hinged to the bottom of the shunt sieve box. The relative positions between the outer tube and the inner tube can be adjusted.

3. A three-phase shunt sieve device according to claim 2, characterized in that: Adjusting through holes are formed in the corresponding positions on the outer side walls of the outer tube and the inner tube along the length direction, and positioning bolts are arranged in the adjusting through holes.

4. A three-phase shunt sieve device according to claim 1, characterized in that: Inner spacers are arranged at the positions corresponding to the spaces between two adjacent sieve plate assemblies on the sieve shaft. The sieve plate assembly includes a disc plate and a disc knife detachably arranged on the sieve shaft. Shaft holes matched with the sieve shaft are formed in the disc plate and the disc knife, and key grooves are arranged on the shaft holes.

5. A three-phase shunt sieve device according to claim 4, characterized in that: The disc plates and the disc knives are matched in shape, and both the disc plates and the disc knives are Reuleaux triangles.

6. A three-phase shunt sieve device according to claim 4, characterized in that: The disc plates and the disc knives on two adjacent sieve shafts are staggered and connected.

7. A three-phase shunt sieve device according to claim 1, characterized in that: A driving gear is arranged at one end of the sieve shaft. The driving gears between two adjacent sieve shafts are driven by a chain, and one of the sieve shafts is connected with a variable frequency motor.

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