Screen static electricity removing device

Abstract

The utility model relates to the technical field of material screening, in particular to a screen static electricity removing device which comprises a vibrating screen mechanism and a static electricity removing mechanism, and the vibrating screen mechanism comprises a screen and a driving mechanism for driving the screen to vibrate; the static electricity removing mechanism comprises a static electricity removing matrix module and a supporting assembly. The static electricity removing matrix module is arranged at the preset position above the screen through the supporting assembly. Wherein the static eliminating matrix module comprises a discharge body and a high-voltage generator; the multiple discharge bodies are arranged on the supporting assembly in an array mode, and the discharge bodies are connected with the supporting assembly in an insulated mode. One end of the high-voltage generator is electrically connected with each discharge body, and the other end of the high-voltage generator is grounded; the screen static electricity eliminating device can effectively eliminate static electricity generated in the vibration screening process of materials, reduces particle aggregation and improves screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of material screening technology, specifically to a screen static electricity removal device. Background Technology

[0002] In the fields of medical manufacturing and fine chemicals, material sieving is a crucial process for separating particles of different sizes. However, low-density micron-sized materials are prone to static electricity generation during sieving due to friction, leading to particle agglomeration, screen clogging, and reduced efficiency. The electrostatic adsorption effect not only prolongs sieving time but also causes particle size distribution deviations due to abnormal particle agglomeration, directly affecting product quality stability.

[0003] Therefore, there is an urgent need for a solution that can eliminate static electricity in materials during screening. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a screen static eliminator that can effectively eliminate the static electricity generated by the material during the vibrating screening process, reduce particle agglomeration and improve screening efficiency.

[0005] To achieve the above and other related objectives, this utility model provides: 1. A screen electrostatic removal device, characterized in that it comprises:

[0006] A vibrating screen mechanism, the vibrating screen mechanism including a screen mesh;

[0007] The static eliminator includes a static eliminator matrix module and a support component; the static eliminator matrix module is positioned at a preset position above the screen via the support component.

[0008] The static eliminator matrix module includes:

[0009] A discharge element, wherein an array of the discharge elements is arranged on the support assembly, and the discharge elements are insulated from the support assembly;

[0010] A high-voltage generator, one end of which is electrically connected to each of the discharge bodies, and the other end is grounded.

[0011] In one embodiment of the present invention, the support assembly includes a movable support assembly, and the static elimination mechanism follows the movable support assembly away from or to a predetermined position above the screen.

[0012] In one embodiment of this utility model, the movable support assembly is a height adjustment mechanism;

[0013] The height adjustment mechanism connects to and adjusts the distance between the static elimination mechanism and the vibrating screen mechanism.

[0014] In one embodiment of the present invention, the support component includes a cover that covers the upper part of the vibrating screen mechanism, and the antistatic matrix module is disposed on the side of the cover facing the screen.

[0015] Furthermore, the cover is detachably connected to the vibrating screen mechanism via a flexible sealing assembly.

[0016] In one embodiment of this utility model, the vibrating screen mechanism is provided with a magnetic attraction component that is magnetically attracted to the flexible sealing assembly.

[0017] In one embodiment of this utility model, the flexible sealing assembly includes an electromagnetic coil, and the magnetic attraction component is an annular metal part that magnetically matches the electromagnetic coil;

[0018] When the electromagnetic coil is energized, it is magnetically attracted and fixed to the annular metal part to form a fixed structure that suppresses relative displacement.

[0019] In one embodiment of this utility model, the electromagnetic coil is arranged around the outer edge of the cover, and the annular metal part is fixed to the edge of the screen.

[0020] In one embodiment of the present invention, the static elimination matrix module includes an insulating coating layer that covers the connection area between the discharge body and the support component, and one tip of the discharge body protrudes from the outer surface of the insulating coating layer.

[0021] In one embodiment of the present invention, the vibrating screen mechanism further includes a driving mechanism for driving the screen to vibrate. The driving mechanism includes a vibration source and a frequency adjustment knob. The frequency adjustment knob is connected to the controller of the vibration source to control the vibration frequency of the screen.

[0022] In one embodiment of this utility model, the aperture of the sieve is between 70μm and 1000μm.

[0023] In summary, this invention, by incorporating an antistatic mechanism into the vibrating screen, utilizes the combined action of a high-voltage generator and a discharge body to effectively eliminate static electricity generated during material screening. This significantly reduces problems such as material agglomeration, screen clogging, and decreased grading accuracy caused by static electricity. The antistatic matrix module employs an array of multiple discharge bodies, providing a wide coverage area and continuously neutralizing static electricity on the screen, overcoming the limitations of traditional handheld ion bars, which have limited effective range and rely on manual operation. This device is suitable for screening high-humidity-sensitive materials, avoiding the material deterioration caused by moisture in traditional humidification methods and overcoming the limitations of environmental humidity control. Especially when processing micro-powder materials, it can effectively eliminate static electricity-induced corrosion. The system effectively eliminates abnormal adsorption of particles, significantly improving screening efficiency and product quality. The static elimination matrix module is fixed to a preset position above the screen via a support assembly. The discharge body is insulated from the support assembly, and one end of the high-voltage generator is electrically connected to the discharge body while the other end is grounded. This simple structure facilitates installation and maintenance. Simultaneously, the elimination of static electricity reduces material flying and scattering during screening due to electrostatic adsorption, lowering dust concentration in the production environment and improving its health. Furthermore, by effectively resolving issues such as screen clogging and material agglomeration, the system reduces equipment maintenance frequency and workload, lowering maintenance costs and downtime, thereby improving production efficiency and economic benefits. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the screen static elimination device in an optional embodiment of the present invention, which is an integral structure;

[0026] Figure 2 This is a partial structural schematic diagram of the static elimination mechanism in an optional embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the screen static removal device in another optional embodiment of the present invention. In actual use, the vibrating screen mechanism is located directly below the static removal matrix module.

[0028] Figure 4 This is a schematic diagram of the structure of the movable support assembly in another optional embodiment of the present invention;

[0029] Component labeling description: Vibrating screen mechanism 1, screen 11, vibrating screen base 12, annular metal part 121, display module 122, frequency adjustment knob 123, switch 124, support leg 125, static elimination mechanism 2, static elimination matrix module 21, support assembly 22, discharge body 211, insulating coating layer 212, movable bracket assembly 221, cover 2210, telescopic rod 2211, locking assembly 2212, first vertical rod 2213, first rotating plate 2214, base 2215, flexible sealing assembly 222. Detailed Implementation

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0031] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0032] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, devices, and materials similar to or equivalent to those described, used, or made of materials in the embodiments of this invention.

[0033] The main function of the high-voltage generator is to produce high voltage to provide the necessary electrical energy for the discharge body 211, thereby neutralizing static electricity. The high-voltage generator converts the input low voltage into a high voltage output, typically using transformer principles or boost technology in electronic circuits. In the screen static eliminator, the high voltage generated by the high-voltage generator is applied to the discharge body 211, creating a strong electric field around it. When gas molecules in the air are ionized under the influence of this strong electric field, a large number of ions and free electrons are generated. These charged particles interact with the static charge on the surface of the screen 11, neutralizing the static charge and thus eliminating static electricity. The high-voltage generators mainly include transformer-type high-voltage generators, electron tube-type high-voltage generators, and integrated circuit-type high-voltage generators.

[0034] The electrostatic removal device for screens provided by this utility model can be applied to the field of industrial technology or other technical fields that meet the usage requirements. When applied to material screening equipment in industrial production, the equipment can be a vibrating screening equipment in industries such as chemical, food, and pharmaceutical.

[0035] Static electricity is a common phenomenon in industrial production, especially in material screening. Static electricity can cause material agglomeration, screen clogging, and reduced grading accuracy, severely impacting production efficiency and product quality. During the research and development process, the following methods were attempted to eliminate static electricity during material screening: First, adjusting the ambient humidity to reduce the probability of static electricity generation. However, this method is limited by the humidity standards of the production environment; excessive humidification may cause materials to become damp and deteriorate. Second, using handheld ion bars for localized static neutralization. However, this method relies on manual positioning and has a limited range of effect, making it difficult to achieve continuous static electricity elimination in dynamic screening scenarios. Therefore, although attempts have been made to improve the static electricity problem during the screening process using the charge neutralization principle, its effective range remains limited in practical industrial applications. To solve this problem, this invention provides a screen static electricity removal device. By setting a static electricity removal mechanism 2 on the vibrating screen mechanism 1, and through the synergistic effect of a high-voltage generator and a discharge body, static electricity during the material screening process is effectively eliminated, improving screening efficiency and product quality.

[0036] Please see Figure 1-3This utility model provides a screen static eliminator, including a vibrating screen mechanism 1 and a static eliminator mechanism 2; the vibrating screen mechanism 1 includes a screen 11 and a driving mechanism for driving the screen 11 to vibrate; the static eliminator mechanism 2 includes a static eliminator matrix module 21 and a support component 22; the static eliminator matrix module 21 is disposed at a preset position above the screen 11 via the support component 22; wherein, the static eliminator matrix module 21 includes a discharge body 211 and a high-voltage generator, a plurality of discharge bodies 211 are arranged in an array on the support component 22, and the discharge bodies 211 are insulated from the support component 22; one end of the high-voltage generator is electrically connected to each of the discharge bodies 211, and the other end is grounded.

[0037] It should be noted that in this case, by constructing a matrix-type discharge body 211 array in synergy with a vibrating screen, the limitations of electrostatic elimination for highly moisture-sensitive materials were overcome. Simultaneously, the spatial limitations of manual operation were overcome, significantly alleviating problems such as screen clogging, material agglomeration, and decreased classification accuracy caused by electrostatic adsorption during the screening process. Especially when processing micro-powder materials, it can eliminate abnormal adsorption of particles caused by electrostatics, effectively improving screening efficiency.

[0038] Based on the principle of high-voltage corona discharge, a strong electric field sufficient to ionize the air is established at the tip of the discharge body 211 by a high-voltage generator, causing the surrounding air molecules to ionize and generate clouds of positive and negative ions. When charged materials (usually negatively charged) pass through the ionization zone, the positive and negative ions migrate directionally to the material surface under the drive of the electric field to complete charge neutralization. This design uses an array of discharge bodies 211, which can form a large number of positive and negative ion clouds. Combined with the periodic throwing motion of the vibrating screen, the material forms a wave-like propulsion trajectory on the plane of the screen 11, ensuring that most material particles undergo at least multiple charge neutralization processes, thereby achieving sufficient destatication of the material and improving the material screening efficiency. The material is, for example, polypropylene powder.

[0039] The screen 11 is circular, square, or round. The discharge body 211 can be made of tungsten steel needle electrode, carbon fiber brush electrode, etc. The support component 22 can be a height-adjustable gantry structure, equipped with a laser rangefinder to achieve automatic adjustment of the discharge gap. For flammable and explosive materials, the high-voltage generator can be replaced with a bipolar pulse power supply to limit the discharge current within a safe threshold while maintaining neutralization efficiency.

[0040] like Figure 1 As shown, as an optional embodiment of this case, the vibrating screen mechanism 1 includes a vibrating screen base 12, the screen 11 is disposed on the vibrating screen base 12, the vibrating screen base 12 includes a cavity for receiving the material that has been screened, and the bottom of the vibrating screen base 12 is provided with a support leg 125.

[0041] like Figure 1 or Figure 3 As shown, as an optional embodiment of this case, the support component 22 is installed on the ground via the base 2215 or the static elimination mechanism 2 is integrally connected to the vibrating screen mechanism 1.

[0042] Please see Figure 1-2 or Figure 2-3 As an optional embodiment of this case, the support component 22 includes a movable support component 221, and the static elimination mechanism 2 follows the movable support component 221 away from a predetermined position above the screen 11 or moves to a predetermined position above the screen 11.

[0043] It should be noted that the movable support assembly 221 can adopt a gantry-type liftable frame, and the static elimination mechanism 2 can be flipped and removed as a whole through a hinge structure; the movable support assembly 221 can also be a folding cantilever structure, which can be extended to the working position with the assistance of a gas spring, and reduce the space occupied after retraction; the movable support assembly 221 can also automatically fine-tune the spatial coordinates of the discharge body 211 according to the amplitude of the screen 11 through an electric push rod and a position sensor.

[0044] This invention achieves rapid separation or positioning of the static eliminator 2 and the screen 11 through mechanical displacement, so that the static eliminator 2 can be easily moved to a predetermined position above the screen 11 when static elimination of materials is required, and can be easily moved away when static eliminator 2 is not needed, so as to feed materials onto the screen 11.

[0045] Please see Figure 1-2 or Figure 2-3 As an optional embodiment of this case, the movable support assembly 221 is a height adjustment mechanism;

[0046] The height adjustment mechanism connects to and adjusts the distance between the static eliminator 2 and the vibrating screen mechanism 1, optimizing the relative positional relationship between the static eliminator 2 and the vibrating screen mechanism 1 to adapt to different material processing needs and operating conditions, improve the static eliminator effect, and avoid the decrease in static eliminator efficiency due to improper distance.

[0047] Please see Figure 1-2 or Figure 2-3 As an optional embodiment of this case, the height adjustment mechanism includes a telescopic rod 2211 and a locking component 2212. The telescopic rod 2211 connects the static elimination mechanism 2 and the vibrating screen mechanism 1, and the locking component 2212 fixes the distance between the static elimination mechanism 2 and the vibrating screen mechanism 1.

[0048] It should be noted that the telescopic rod 2211, as a connecting member, directly connects the static eliminator 2 and the vibrating screen mechanism 1, allowing the static eliminator 2 to move smoothly relative to the vibrating screen mechanism 1 in the vertical direction. This allows the operator to easily adjust the distance between the static eliminator 2 and the screen 11 according to actual needs to obtain the best static eliminator effect. The operator can use the locking component 2212 to firmly fix the static eliminator 2 in this position, thereby ensuring the stability and reliability of the static eliminator 2 during the screening process.

[0049] Please see Figure 4 As one of the optional embodiments of this case, the movable support assembly 221 consists of a first vertical rod 2213 and a first rotating plate 2214. The first rotating plate 2214 is rotatably connected to the first vertical rod 2213 and is connected to the cover 2210. That is, the static elimination mechanism 2 is disposed on the first rotating plate 2214. The static elimination mechanism 2 follows the first rotating plate 2214 as it rotates away from a predetermined position above the screen 11 or rotates to a predetermined position above the screen 11.

[0050] Please see Figure 1-2 or Figure 2-3 As an optional embodiment of this case, the support component 22 includes a cover 2210 covering the upper part of the vibrating screen mechanism 1, at least the discharge body 211 in the static elimination matrix module 21 is disposed on the side of the cover 2210 facing the screen 11, and the cover 2210 is detachably connected to the vibrating screen mechanism 1 through a flexible sealing component 222.

[0051] It should be noted that if an ion fan is used to release charge-neutralizing ions into the screen 11 area, the high-speed airflow will easily disturb the light particles, causing material spillage and secondary pollution. Therefore, this invention uses a sealed cover 2210 adapted to the upper contour of the vibrating screen mechanism 1. The inner surface of the cover 2210 integrates an antistatic matrix module 21. The flexible sealing component 222 is, for example, a corrugated silicone sealing sleeve or a ring-shaped suction cup. The corrugated silicone sealing sleeve forms an airtight connection with the side wall or upper surface contour of the vibrating screen mechanism 1 through a quick-release magnetic flange or an electromagnet flange, thereby preventing material spillage and pollution.

[0052] Please see Figure 1-2 or Figure 2-3 As an optional embodiment of this case, the vibrating screen mechanism 1 is provided with a magnetic attraction component that is magnetically attracted to the flexible sealing assembly 222.

[0053] It should be noted that the magnetic attraction component can be an electromagnet or a metal part or magnet that can be attracted by a magnet. This invention utilizes the attraction between magnetically conductive materials to form an adaptive sealing interface. The magnetic attraction component includes, but is not limited to, an array of neodymium iron boron permanent magnets arranged in a ring, an electromagnet assembly, or a magnetic dovetail structure. The side wall of the vibrating screen mechanism 1 can be fitted with a ring-shaped magnetically conductive stainless steel ring as a magnetic attraction component, which forms a complementary adsorption structure with the rare earth magnet strip at the end of the flexible sealing component 222. In another embodiment, an electromagnet flange is used as a magnetic attraction component, and a controllable magnetic attraction force is generated by pulsed energization, which, together with a pressure sensor, realizes closed-loop adjustment of the sealing clamping force. This design optimizes the dynamic sealing performance between the cover 2210 and the vibrating screen mechanism 1 by setting a magnetic mating structure. This effectively solves the problem of cumbersome operation caused by manually tightening bolts in traditional flange connections. In particular, it overcomes the risk of sealing failure caused by the easy loosening of rigid connecting parts under high-frequency vibration of the screen 11, as well as the problem of damage to electronic components inside the static elimination matrix module 21 under high-frequency vibration of the screen 11. This is beneficial to extending the service life of the screen static elimination device.

[0054] Please see Figure 1-2 or Figure 2-3 As an optional embodiment of this case, the flexible sealing assembly 222 includes an electromagnetic coil, and the magnetic attraction component is an annular metal part 121 that is magnetically matched with the electromagnetic coil;

[0055] When the electromagnetic coil is energized, it is magnetically attracted and fixed to the annular metal part 121 to form a fixed structure that suppresses relative displacement.

[0056] It should be noted that the electromagnetic coil is made of multi-winding layered enameled wire and embedded inside a flexible silicone sealing sleeve. After being energized, it generates a directional magnetic field perpendicular to the annular metal part 121. The annular metal part 121 is an annular insert made of a high-permeability soft magnetic alloy (such as 1J22 iron-cobalt-vanadium alloy). In another embodiment, the annular metal part 121 is designed as a toothed concave-convex interface, which fits into the complementary slot structure on the end face of the electromagnetic coil. The multidimensional displacement is suppressed by the dual action of magnetic attraction and mechanical clamping.

[0057] Please see Figure 1-2 or Figure 2-3 As an optional embodiment of this case, the electromagnetic coil is arranged around the outer edge of the cover 2210, and the annular metal part 121 is fixed to the edge of the screen 11, thereby achieving automatic alignment and adsorption between the cover 2210 and the edge of the screen 11 through the action of the electromagnetic field. This solves the problems of wear on the sealing surface, material leakage, limitation of the amplitude of the screen 11 by the rigid connection structure, and damage to the static elimination matrix module 21 caused by the relative displacement between the cover 2210 and the screen 11 during the vibration of the screen 11.

[0058] Please see Figure 2 As an optional embodiment of this case, the static elimination matrix module 21 includes an insulating covering layer 212, which covers the connection area between the discharge body 211 and the support component 22, and one tip of the discharge body 211 protrudes from the outer surface of the insulating covering layer 212.

[0059] It should be noted that the insulating coating layer 212 is made of high-voltage resistant engineering plastic (such as polytetrafluoroethylene or epoxy resin) injection molding, or ceramic coating (such as alumina plasma spraying) covering the connection area; the tip of the discharge body 211 protrudes from the outer surface of the insulating coating layer 212 to ensure the electric field strength is concentrated.

[0060] To address the issues of short-circuit failure at the connection between the discharge body 211 and the support component 22 in existing static electricity elimination modules due to high-voltage breakdown and surface creepage, as well as the potential for corona discharge at the root of the discharge body 211 and the support component 22 under humid conditions, leading to energy loss, this invention enhances the electrical safety performance of the connection area by setting an insulating covering layer 212. This effectively prevents high-voltage breakdown and surface creepage, avoids or reduces corona discharge and energy loss problems, ensures stable operation of the equipment even in high humidity environments, and significantly reduces the risk of energy loss and excessive ozone generation.

[0061] Please see Figure 1 As an optional embodiment of this case, the driving mechanism includes a vibration source and a frequency adjustment knob 123, the frequency adjustment knob 123 being connected to the vibration source to control the vibration frequency of the screen 11.

[0062] It should be noted that the vibration source is a vibratory motor or other equipment that meets the usage requirements. The rotor inside the vibratory motor rotates at high speed after being energized. During rotation, due to the unbalanced mass setting, a periodically changing centrifugal force is generated, thereby causing the screen 11 to vibrate. The frequency adjustment knob 123 is connected to the control system of the vibratory motor. By rotating the knob, the electrical frequency signal input to the vibratory motor can be changed. The change in electrical frequency directly affects the speed of the vibratory motor, thus changing the vibration frequency of the screen 11. Regarding screening efficiency, because the vibration frequency of the screen 11 can be flexibly adjusted according to the characteristics of the material and screening requirements, the movement of the material on the screen surface is more orderly and efficient, effectively avoiding material blockage and improving screening efficiency. Secondly, regarding equipment reliability, by reasonably adjusting the vibration frequency, excessive impact and fatigue damage to the screen 11 are reduced, extending the service life of the screen 11, reducing equipment maintenance costs and downtime, and improving the overall reliability of the equipment.

[0063] As an optional embodiment of this case, the aperture of the screen 11 is between 70μm and 1000μm. This aperture range can meet the screening requirements of various materials with different particle sizes, and can effectively screen materials from fine powder to larger particles.

[0064] As an optional embodiment of this case, the screen 11 is a single-layer, double-layer or multi-layer stacked structure, and each layer of screen 11 has an annular metal part 121 on its edge. The multi-layer structure can realize the grading and screening of different particle sizes, improve screening efficiency and accuracy, and the annular metal part 121 on the edge of each layer of screen 11 enhances the structural strength and conductivity of the screen 11, which is beneficial to the conduction and elimination of static electricity.

[0065] As an optional embodiment of this case, the screen 11 is made of stainless steel or nylon. Stainless steel has good durability and conductivity, and is suitable for occasions where the requirements for metal contamination are not high. Nylon, on the other hand, has certain antistatic properties and does not contaminate materials, and is suitable for industries such as food and medicine where the purity requirements are high.

[0066] As an optional embodiment of this case, the discharge body 211 has a needle-like, sheet-like, or brush-like structure, and the material of the discharge body 211 is an iron-nickel alloy, a nickel-copper alloy, or stainless steel.

[0067] As an optional embodiment of this case, the high voltage generator is grounded through the cover 2210 and the support component 22. Both the support component 22 and the cover 2210 are made of conductive materials, which ensures a good connection between the high voltage generator and the ground, forming a stable discharge circuit and effectively neutralizing the static charge on the surface of the screen 11.

[0068] As an optional embodiment of this case, the screen static removal device further includes a display module 122 and a static sensor. The static sensor is disposed on the surface of the screen 11 and is electrically connected to the display module 122 to display the static intensity in real time. The static sensor is disposed on the surface of the screen 11 and can monitor the static intensity of the screen 11 surface in real time and transmit the signal to the display module 122. The display module 122 then displays the static intensity value intuitively, which makes it easy for operators to understand the static situation in real time, adjust the static removal parameters in a timely manner, and ensure that the static electricity in the screening process is always within a controllable range.

[0069] As an optional embodiment of this case, the display module 122 is electrically connected to the frequency adjustment knob 123 or the vibration motor to display the vibration frequency of the screen 11 driven by the vibration motor.

[0070] As an optional embodiment of this case, the static elimination mechanism also includes a switch 124 that electrically connects the static elimination matrix module 21 to the power supply.

[0071] As an optional embodiment of this case, the display module 122 is also connected to a control mechanism, which automatically adjusts the discharge frequency of the discharge body 211 according to the detection signal of the electrostatic sensor, thereby improving ease of use.

[0072] As an optional embodiment of this case, the insulating covering layer 212 is made of ceramic, polytetrafluoroethylene or epoxy resin.

[0073] In summary, this utility model effectively overcomes some practical problems in the prior art, thus having high utilization value and significance.

[0074] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A screen destaticizing device characterized by comprising: The application relates to a vibrating screen mechanism and an electrostatic elimination mechanism. The vibrating screen mechanism comprises a screen mesh. The electrostatic elimination mechanism comprises an electrostatic elimination matrix module and a support assembly. The electrostatic elimination matrix module is arranged above the screen mesh at a preset position through the support assembly. The electrostatic elimination matrix module comprises: a plurality of discharge bodies arranged on the support assembly and insulatedly connected with the support assembly; a high-voltage generator electrically connected with each discharge body at one end and grounded at the other end.

2. The screen destaticizing device according to claim 1, characterized in that The support assembly comprises a movable support assembly, and the electrostatic elimination mechanism is moved away from or transferred to the preset position above the screen mesh along with the movable support assembly.

3. The screen destaticizing device according to claim 2, wherein The movable support assembly is a height adjusting mechanism. The height adjusting mechanism connects and adjusts the distance between the electrostatic elimination mechanism and the vibrating screen mechanism.

4. The screen destaticizing device according to claim 2, wherein The movable support assembly comprises a cover body covering the upper part of the vibrating screen mechanism, and the electrostatic elimination matrix module is arranged on the side of the cover body facing the screen mesh. The cover body is detachably connected with the vibrating screen mechanism through a flexible sealing assembly.

5. The screen destaticizing device according to claim 4, wherein The vibrating screen mechanism is provided with a magnetic attraction fitting magnetically attracted to the flexible sealing assembly.

6. The screen destaticizing device according to claim 5, wherein The flexible sealing assembly comprises an electromagnetic coil, and the magnetic attraction fitting is an annular metal part magnetically matched with the electromagnetic coil. The electromagnetic coil is magnetically attracted to the annular metal part after being electrified to form a fixed structure for inhibiting relative displacement.

7. The screen destaticizing device according to claim 6, wherein The electromagnetic coil is arranged around the outer edge of the cover body, and the annular metal part is fixed to the edge of the screen mesh.

8. The screen destaticizing device according to claim 1, wherein The electrostatic elimination matrix module comprises an insulating coating layer covering the connecting area of the discharge body and the support assembly, and a sharp end of the discharge body protrudes out of the outer surface of the insulating coating layer.

9. The screen destaticizing device according to claim 1, wherein The vibrating screen mechanism further comprises a driving mechanism for driving the screen mesh to vibrate, and the driving mechanism comprises a vibration source and a frequency adjusting knob connected with the controller of the vibration source to control the vibration frequency of the screen mesh.

10. The screen destaticizing device according to claim 1, wherein The aperture of the screen mesh is between 70 microns and 1000 microns.

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