Soundproof and dustproof closed separating screen

Abstract

The invention belongs to the field of vibration sorting machinery, discloses a sound-proof and dust-proof closed sorting screen, and aims to solve the problems that an existing vibration sorting screen does not have sound-proof and dust-proof functions and lacks safety. The separating screen main body is completely located in a closed space through matched connection of the integrated packaging cover and the lower discharging hopper, so that the separating screen main body is isolated from the external environment, the functions of sealing, dust prevention, sound insulation and noise reduction in the separating screen are achieved, meanwhile, the integrated packaging cover can further prevent screened materials from splashing down, and operation safety is improved; according to the integrated packaging cover, each packaging component is provided with a corresponding unique sealing structure, the functions of sealing, dust prevention, sound insulation and noise reduction can be achieved on the interior of the separating screen from all directions, the separating screen is truly isolated from the external space, the working environment is free of pollution, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The invention belongs to the field of vibration sorting machinery, and in particular relates to a sound-insulated and dust-proof closed sorting screen. Background Art

[0002] Sorting screen is a mechanical device that uses physical properties (such as particle size, shape, density, etc.) to separate solid materials. It screens, grades or filters materials through vibration, rotation or mechanical movement. Its core functions include rough selection, fine screening, solid-liquid separation and multi-level particle size classification. It is widely used in the fields of minerals, chemicals, food, medicine, etc. With the rapid development of my country's economy and science and technology and the integration of energy industries such as coal and mining, my country's energy industry has gradually become large-scale and internationalized, and at the same time, higher requirements have been put forward for vibration screening equipment.

[0003] When the vibrating sorting screen equipment is working, due to its own working characteristics, it needs to rely on high-frequency vibration back and forth to screen the materials, which often produces a large amount of dust and vibration noise floating in the air. However, the existing mechanical equipment of this type is usually operated in the open air, and there is no separate sound insulation, dustproof or other safety protection structure. This makes the dust and noise at the work site relatively large, which not only pollutes the working environment, but also affects the health of the operators. In the long run, the dust coverage will also affect the heat dissipation effect of the exciter, further affecting the service life of the vibrating screen; in addition, the open air operation method lacks safety. If stones splash, it will pose a certain safety threat to the workers.

[0004] Therefore, it is imperative to develop a vibrating sorting screen that is soundproof, dustproof, safe and reliable. Summary of the invention

[0005] The purpose of the present invention is to provide a soundproof and dustproof closed sorting screen, aiming to solve the problem that the existing vibrating sorting screen has no soundproof and dustproof function and lacks safety.

[0006] To achieve the above object, the present invention provides the following technical solutions: A soundproof and dustproof closed sorting screen comprises a mounting frame, a sorting screen body, an exciter and a driving motor, wherein the sorting screen body is provided with a multi-layer screen surface, and is characterized in that the sorting screen body is mounted on the mounting frame through a shock-absorbing spring assembly, the exciter is symmetrically arranged on both sides of the sorting screen body, and the driving motor is connected to the exciter in a transmission manner; it also comprises an integrated packaging cover, which is arranged on the sorting screen body, and the lower end of the integrated packaging cover is fixedly connected to the mounting frame; a lower discharge hopper is also installed below the sorting screen body, and the upper end opening of the lower discharge hopper is adapted to be docked and installed with the lower end cover opening of the integrated packaging cover.

[0007] As a further preferred embodiment of the present technical solution, the integrated packaging cover includes two matching side packaging plates, a front packaging outlet hopper, a rear packaging plate and a top packaging component. The side packaging plates, the front packaging outlet hopper, the rear packaging plate and the top packaging component are assembled and spliced ​​to form a closed space for sound insulation and dust prevention.

[0008] As a further preferred embodiment of the technical solution, a vibrator mounting port for clamping the vibrator is provided on the side packaging plate, and the vibrator mounting port and the outer casing of the vibrator are clearance-fitted; an elastic sealing sleeve is provided at the vibrator mounting port, and one end of the elastic sealing sleeve is fixed to the side packaging plate, and the other end is fixed to the outer casing of the vibrator.

[0009] As a further preferred embodiment of the present technical solution, the elastic sealing sleeve includes a first connecting part, a deformable part and a second connecting part which are arranged in sequence, the first connecting part is fixedly connected to the side packaging plate through a metal pressure plate and bolts, and the second connecting part is fixedly connected to the outer casing of the exciter through a metal clamp.

[0010] As a further preferred embodiment of the present technical solution, a spring mounting opening for clamping the shock-absorbing spring assembly is provided on the side packaging plate, and the spring mounting opening and the shock-absorbing spring assembly are clearance-fitted; a spring packaging plate is provided at the spring mounting opening, and the spring packaging plate is fixedly mounted on the side packaging plate and covers the shock-absorbing spring assembly.

[0011] As a further preferred embodiment of the present technical solution, a plurality of independent sealed compartments are arranged inside the front packaging discharge hopper, and the number of the sealed compartments corresponds to the number of screen surfaces in the sorting screen body; the inlet ends of the plurality of sealed compartments correspond one-to-one to the discharge ends of the multiple layers of screen surfaces in the sorting screen body.

[0012] As a further preferred embodiment of the present technical solution, an inspection door having a width consistent with that of the rear packaging board is provided below the rear packaging board.

[0013] As a further preferred embodiment of the present technical solution, the top packaging assembly includes an arched hard top, on which a plurality of inspection openings are arranged; a plurality of support tubes are embedded in parallel in the inspection openings, and an elastic sealing film for closing the inspection openings is laid above the support tubes; ratchet tightening and loosening rods are fixedly provided on the arched hard top at positions at both ends of the inspection openings, and the two ends of the elastic sealing film are respectively connected to the ratchet tightening and loosening rods through film pressing clamps.

[0014] As a further preferred embodiment of the present technical solution, a plurality of inspection windows are provided on the side packaging plates and the front packaging discharge hopper.

[0015] As a further preferred embodiment of the present technical solution, a U-shaped maintenance corridor is also installed on the integrated packaging cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention makes the main body of the sorting screen completely in a closed space by the coordinated connection between the integrated packaging cover and the lower discharge hopper, thereby isolating the main body of the sorting screen from the external environment, achieving the functions of sealing and dustproofing, sound insulation and noise reduction inside the sorting screen, and at the same time, the integrated packaging cover can also prevent the splashing of the screened materials, thereby improving the safety of the operation; and the integrated packaging cover in the present invention is assembled and spliced ​​by the side packaging plate, the front packaging discharge hopper, the rear packaging plate and the top packaging component, and each packaging component is equipped with a corresponding unique sealing structure, such as an elastic sealing sleeve to seal the vibration exciter installation port and the vibration exciter housing. The sealing treatment relies on its deformation buffering characteristics to adapt to the high-frequency vibration of the sorting screen, so as to solve the problem that the traditional static sealing structure is unavailable. Another example is the use of a ratchet mechanism and an elastic sealing membrane to achieve the sealing of the top inspection port, so that it can not only take into account the convenience of daily maintenance, but also effectively prevent dust and sound from the inside of the sorting screen. On the whole, the sealing structure used on the integrated packaging cover can seal, dustproof, soundproof and reduce noise from the inside of the sorting screen in all directions, truly realize the isolation of the sorting screen from the outside space, ensure pollution-free working environment and eliminate safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle A; Figure 3 It is a schematic diagram of the overall structure of the sorting screen body in the present invention; Figure 4 It is a partial structural schematic diagram of the integrated packaging cover in the present invention at a certain viewing angle; Figure 5 It is a partial structural schematic diagram of the integrated packaging cover in the present invention from another viewing angle; Figure 6 It is a structural schematic diagram of the side packaging plate in the present invention; Figure 7 It is a structural schematic diagram of the front packaged discharge hopper in the present invention; Figure 8 It is a partial structural schematic diagram of the top packaging component in the present invention; Fig. 9It is a schematic diagram of the overall structure of the top packaging component in the present invention; Fig.10 for Fig. 9 A partial enlarged view of point B in the middle; Fig.11 It is a structural schematic diagram of the lower discharge hopper in the present invention; Fig.12 It is a partially sealed cutaway view of the vibration exciter in the present invention; Fig.13 It is a schematic structural diagram of the elastic sealing sleeve in the present invention.

[0018] Among them, 1-mounting frame, 2-sorting screen body, 3-vibrator, 4-driving motor, 5-shock-absorbing spring assembly, 6-integrated packaging cover, 61-side packaging plate, 62-front packaging discharge hopper, 63-rear packaging plate, 64-top packaging assembly, 641-arched hard top, 642-inspection port, 643-support tube, 644-elastic sealing film, 645-ratchet tightening and loosening rod, 646-film pressing card, 647-ratchet, 648-retraction pawl, 65-spring packaging plate, 66-inspection door, 67-inspection window, 68-U-shaped inspection corridor, 7-lower discharge hopper, 8-annular corridor, 9-side plate, 10-coupling, 11-motor mounting frame, 12-elastic sealing sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1 like Figures 1 to 3 A soundproof and dustproof closed sorting screen is shown, comprising a mounting frame 1, a sorting screen body 2, an exciter 3 and a driving motor 4, wherein the sorting screen body 2 is provided with a multi-layer screen surface, the sorting screen body 2 is mounted on the mounting frame 1 through a shock-absorbing spring assembly 5, the exciter 3 is symmetrically arranged on both sides of the sorting screen body 2, and the driving motor 4 is transmission-connected to the exciter 3; it also includes an integrated packaging cover 6, the integrated packaging cover 6 is covered on the sorting screen body 2, and the lower end of the integrated packaging cover 6 is fixedly connected to the mounting frame 1; a lower discharge hopper 7 is also installed below the sorting screen body 2, and the upper end opening of the lower discharge hopper 7 is adapted to be docked and installed with the lower end cover opening of the integrated packaging cover 6.

[0021] It should be noted that, in the present embodiment, the mounting frame 1 adopts a detachable structure, which is mainly used to support the sorting screen body 2, and is also used to raise the height of the sorting screen body 2, so as to leave enough space for installing the lower discharge hopper 7 at the bottom of the sorting screen body 2; in order to adapt to the development trend of large-scale existing vibration sorting screen equipment, the structural composition of the mounting frame 1 needs to have sufficient supporting strength, but since this part of the technical content is not the focus of the present invention, it is not described in detail in the present embodiment.

[0022] At the same time, in order to adapt to the current trend of large-scale equipment, an annular corridor 8 is further provided in the installation plane of the mounting frame 1 and the sorting screen body 2, and a ladder is provided between the annular corridor 8 and the ground.

[0023] like Figure 3 As shown, in the present embodiment, the sorting screen body 2 is provided with three layers of screen surface, and the three layers of screen surface are arranged in parallel up and down, and the three layers of screen surface are uniformly connected and fixed by the side plates 9 on both sides; the exciter 3 is provided with two groups, one group of exciters 3 is arranged above the upper screen surface and symmetrically installed on the side plates 9 on both sides, and the other group of exciters 3 is arranged above the lower screen surface and symmetrically installed on the side plates 9 on both sides. The upper and lower groups of exciters 3 can simultaneously perform high-frequency vibration to generate exciting force. In the present embodiment, the motion trajectory of the exciter 3 is elliptical. For details, please refer to the patent number "CN216094751U" for a motor direct-driven elliptical vibrating screen with an arc-shaped screen surface.

[0024] Those skilled in the art can understand that the output shaft of the drive motor 4 is drivingly connected to the input shaft of the exciter 3 via a coupling 10 , and the drive motor 4 is fixed to the mounting frame 1 via a motor mounting frame 11 .

[0025] Regarding the integrated packaging cover 6, Figures 4 to 10 As shown, more specifically, the integrated packaging cover 6 includes two matching side packaging plates 61, a front packaging discharge hopper 62, a rear packaging plate 63 and a top packaging component 64. The side packaging plates 61, the front packaging discharge hopper 62, the rear packaging plate 63 and the top packaging component 64 are assembled and spliced ​​to form a closed space for sound insulation and dust prevention.

[0026] like Fig.12 and Fig.13As shown, in the present embodiment, a vibration exciter mounting port for clamping the vibration exciter 3 is provided on the side packaging plate 61, and the vibration exciter mounting port and the outer shell of the vibration exciter 3 are clearance-fitted; an elastic sealing sleeve 12 is provided at the vibration exciter mounting port, one end of the elastic sealing sleeve 12 is fixed to the side packaging plate 61, and the other end is fixed to the outer shell of the vibration exciter 3; the elastic sealing sleeve 12 includes a first connecting portion, a deformable portion and a second connecting portion which are arranged in sequence, the first connecting portion is fixedly connected to the side packaging plate 61 by a metal pressure plate and bolts, and the second connecting portion is fixedly connected to the outer shell of the vibration exciter 3 by a metal clamp; in the present embodiment, the elastic sealing sleeve 12 is made of rubber.

[0027] This embodiment cleverly utilizes the good deformation buffering characteristics of the elastic sealing sleeve 12 itself to achieve the sealing, dustproof and noise isolation functions of the sorting screen, wherein the outer shell of the vibrator 3 serves as a fixed carrier of the movable end of the elastic sealing sleeve 12, and the side packaging plate 61 serves as a positioning carrier of the fixed end of the elastic sealing sleeve 12. Due to the working characteristics of the sorting screen and daily maintenance requirements, the assembly relationship between the integrated packaging cover 6 and the outer shell of the vibrator 3 in the sorting screen is a large clearance fit. The use of the elastic sealing sleeve 12 can perfectly solve the gap between the sorting screen and the integrated packaging cover 6, thereby achieving the sealing, dustproof and noise isolation functions of the sorting screen.

[0028] When the driving motor 4 is powered on and started, it drives the vibrator 3 to vibrate at high frequency to generate an exciting force acting on the main body of the sorting screen, so as to push the material in the sorting screen to jump up and down and move forward to achieve the purpose of material screening. At the same time, the elastic sealing sleeve 12 relies on its own deformation and buffering characteristics to achieve sealing, dustproofing and noise isolation of the sorting screen. This method effectively solves the problem that traditional static sealing forms cannot effectively seal when relative movement occurs when the sorting screen vibrates at high frequency to screen materials. The dustproof effect is more significant, and the effect of less dust or even dust-free can be achieved. The structure is simple, safe, reliable and durable, and it occupies a small independent space.

[0029] Furthermore, a spring mounting opening for clamping the shock-absorbing spring assembly 5 is provided on the side packaging plate 61, and the spring mounting opening and the shock-absorbing spring assembly 5 are clearance-fitted; a spring packaging plate 65 is provided at the spring mounting opening, and the spring packaging plate 65 is fixedly mounted on the side packaging plate 61 and covers the shock-absorbing spring assembly 5; in this embodiment, the spring packaging plate 65 is fixed to the side packaging plate 61 by bolts, and a sealing gasket is provided between the spring packaging plate 65 and the side packaging plate 61 to enhance the sealing performance and improve the dust-proof and sound-proof effects.

[0030] Those skilled in the art should understand that the installation structure of the sorting screen body 2 and the shock-absorbing spring assembly 5 is a prior art, so this part of the content is not elaborated in detail in this embodiment.

[0031] In this embodiment, if Figure 7 As shown, the interior of the front packaging discharge hopper 62 is provided with a plurality of independent sealed compartments, and the number of the sealed compartments corresponds to the number of screen surfaces in the sorting screen body 2; the inlet ends of the plurality of sealed compartments correspond one by one to the discharge ends of the multi-layer screen surfaces in the sorting screen body 2; in the present embodiment, three sealed compartments are provided in the front packaging discharge hopper 62 corresponding to the number of screen surfaces in the present embodiment, as shown in the figure, the three sealed compartments are respectively used to receive qualified materials after screening by each screen surface in the sorting screen body 2 and guide them out of the sorting screen, and are also used to prevent the dust generated during the flow of the material from escaping and the noise generated by the high-frequency vibration of the sorting screen from leaking; those skilled in the art should understand that a discharge port is provided at the lower end of each of the sealed compartments, and a material collection device (not shown in the figure) can be installed at the discharge port.

[0032] In this embodiment, if Figure 5 As shown, an inspection door 66 having the same width as the rear packaging plate 63 is provided below the rear packaging plate 63. The inspection door 66 adopts a double-opening structure and is mainly used by staff to perform detailed inspections on the inside of the sorting screen.

[0033] In this embodiment, if Figures 8 to 10 As shown, the top packaging component 64 includes an arched hard top 641, on which a plurality of inspection openings 642 are arranged; a plurality of support tubes 643 are embedded in parallel in the inspection openings 642, and an elastic sealing membrane 644 for closing the inspection openings 642 is laid above the support tubes 643. In the present embodiment, the elastic sealing membrane 644 is made of a soft rubber sheet; ratchet tightening and loosening rods 645 are fixedly provided on the arched hard top 641 at the two end positions corresponding to the inspection openings 642, and the two ends of the elastic sealing membrane 644 are respectively connected to the ratchet tightening and loosening rods 645 through film pressing clamps 646.

[0034] The top packaging component 64 in this embodiment is the main body of the structure. It utilizes the arched hardtop 641 to evenly disperse the dynamic and static loads generated from the sorting screen and the material screening process to the side packaging plates 61 on both sides, so that it can not only meet the wind, sun, wind and snow erosion in the open air environment, but also ensure that the overall structure does not shift and deform when the sorting screen performs high-frequency screening of materials, and at the same time plays a role in isolating from the external environment, solving the problem that general support and dustproof structures are difficult to cope with the harsh outdoor environment and the alternating loads generated by the sorting screen, while taking into account the sealing, dustproof, sound insulation and noise reduction functions.

[0035] Specifically, based on the top packaging component 64 in this embodiment, the support tube 643 is used to support the elastic sealing film 644, and the two ends of the elastic sealing film 644 cooperate with the film pressing clamps 646 to firmly fix it on the ratchet tightening and releasing rods 645 on both sides. Those skilled in the art should know that ratchet tightening and releasing rods 645 are provided with ratchets 647 at both ends of the ratchet tightening and releasing rod 645, and the ratchet 647 is equipped with a stop pawl 648; when in use, the ratchet tightening and releasing rods 645 located at both ends of the inspection port 642 are rotated in the opposite direction at the same time, so that it drives the elastic sealing film 644 to be tightly attached to the outer arc surface of the arched hard top 641, so as to realize the sealing of the upper end of the entire top packaging component 64, and achieve the effects of dust isolation, sound insulation and noise reduction.

[0036] At the same time, in order to take into account the convenience of daily maintenance, the stop pawls 648 at both ends of the ratchet tightening and loosening rod 645 are loosened at the same time, and the elastic sealing film 644 is automatically loosened by utilizing its own resilience to shrink inward. Finally, the elastic sealing film 644 can be removed by removing the film pressing card 646, and then the support tube 643 can be removed to quickly complete the establishment of the maintenance channel without the need to additionally disassemble the remaining top packaging components 64 or the entire arched hard top 641 and the connecting bolts of other parts, so that the staff can quickly and safely enter the top space of the sorting screen for inspection and replacement during daily maintenance.

[0037] Furthermore, a plurality of inspection windows 67 are provided on the side packaging plate 61 and the front packaging discharge hopper 62. In the present embodiment, hinged inspection doors are installed at the inspection windows 67. During routine maintenance, the inspection doors can be opened to observe the internal working condition of the sorting screen and the inspection of parts, which is convenient and quick.

[0038] Furthermore, a U-shaped maintenance corridor 68 is also installed on the integrated packaging cover 6. The U-shaped maintenance corridor 68 is installed around the integrated packaging cover 6 and is located in the upper half of the integrated packaging cover 6. In this embodiment, the U-shaped opening end of the U-shaped maintenance corridor 6 is in the direction of the front packaging discharge hopper 62, and in order to facilitate the staff to go up and down, ladders are installed on both sides of the front packaging discharge hopper 62.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soundproof and dustproof closed sorting screen, comprising a mounting frame (1), a sorting screen body (2), an exciter (3) and a driving motor (4), wherein the sorting screen body (2) is provided with a multi-layer screen surface, the sorting screen body (2) is mounted on the mounting frame (1) through a shock-absorbing spring assembly (5), the exciter (3) is symmetrically arranged on both sides of the sorting screen body (2), and the driving motor (4) is drivingly connected to the exciter (3), characterized in that: It also includes an integrated packaging cover (6), which is arranged on the separation screen body (2), and the lower end of the integrated packaging cover (6) is fixedly connected to the mounting frame (1); a lower discharge hopper (7) is also installed below the separation screen body (2), and the upper end opening of the lower discharge hopper (7) is matched and connected with the lower end cover opening of the integrated packaging cover (6).

2. The closed sorting screen according to claim 1, characterized in that: The integrated packaging cover (6) comprises two matching side packaging plates (61), a front packaging discharge hopper (62), a rear packaging plate (63) and a top packaging component (64); the side packaging plates (61), the front packaging discharge hopper (62), the rear packaging plate (63) and the top packaging component (64) are assembled and spliced ​​to form a closed space for sound insulation and dust prevention.

3. The closed sorting screen according to claim 2, characterized in that: An exciter mounting opening for clamping the exciter (3) is provided on the side packaging plate (61), and the exciter mounting opening and the outer shell of the exciter (3) are clearance-matched; an elastic sealing sleeve (12) is provided at the exciter mounting opening, and one end of the elastic sealing sleeve (12) is fixed to the side packaging plate (61), and the other end is fixed to the outer shell of the exciter (3).

4. The closed sorting screen according to claim 3, characterized in that: The elastic sealing sleeve (12) comprises a first connecting portion, a deformable portion, and a second connecting portion which are arranged in sequence, the first connecting portion being fixedly connected to the side packaging plate (61) via a metal pressure plate and bolts, and the second connecting portion being fixedly connected to the housing of the exciter (3) via a metal clamp.

5. The closed sorting screen according to claim 2, characterized in that: A spring installation opening for clamping the shock-absorbing spring assembly (5) is provided on the side packaging plate (61), and the spring installation opening and the shock-absorbing spring assembly (5) are clearance-matched; a spring packaging plate (65) is provided at the spring installation opening, and the spring packaging plate (65) is fixedly mounted on the side packaging plate (61) and covers the shock-absorbing spring assembly (5).

6. The closed sorting screen according to claim 2, characterized in that: The front packaging discharge hopper (62) is provided with a plurality of independent sealed compartments inside, and the number of the sealed compartments corresponds to the number of screen surfaces in the sorting screen body (2); the inlet ends of the plurality of sealed compartments correspond one-to-one to the discharge ends of the multi-layer screen surfaces in the sorting screen body (2).

7. The closed sorting screen according to claim 2, characterized in that: An inspection door (66) having the same width as the rear packaging plate (63) is provided below the rear packaging plate (63).

8. The closed sorting screen according to claim 2, characterized in that: The top packaging component (64) comprises an arched hardtop (641), on which a plurality of inspection openings (642) are arranged; a plurality of support tubes (643) are embedded in parallel in the inspection openings (642), and an elastic sealing film (644) for closing the inspection openings (643) is laid above the support tubes (643); ratchet tightening and loosening rods (645) are fixedly arranged on the arched hardtop (643) at the positions at both ends of the inspection openings (642), and the two ends of the elastic sealing film (644) are respectively connected to the ratchet tightening and loosening rods (645) through film pressing clamps (646).

9. The closed sorting screen according to claim 2, characterized in that: A plurality of inspection windows (67) are provided on the side packaging plate (61) and the front packaging discharge hopper (62).

10. The closed sorting screen according to any one of claims 1 to 9, characterized in that: A U-shaped maintenance corridor (68) is also installed on the integrated packaging cover (6).

Images