Powder vibration screening machine

Abstract

The utility model relates to the technical field of glass fiber production, in particular to a powder vibration screening machine, which is characterized in that a hopper is arranged on a feed port of a conveyor, a coarse screen and a fine screen are sequentially arranged on the inner side of the hopper from top to bottom, and a first vibration motor is arranged on the outer side of the hopper; the coarse screen and the fine screen are both used for screening materials and are both detachably arranged; a plurality of blades are arranged at the tops of the coarse screen and the fine screen; an openable dustproof cover is arranged at the top of the hopper; according to the powder vibration screening machine, secondary smashing and screening of cakes are achieved through the synergistic effect of the vibration motor, the coarse screen, the fine screen and the blades, dust prevention of the dust cover is matched, the screening efficiency is improved, personal safety protection is facilitated, and the screening efficiency is improved. The problems that due to the fact that an existing powder vibration screening machine for electronic-grade glass fiber production does not have the caking treatment capacity, the screening efficiency is low, and a large amount of dust is generated in the working environment are solved.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber production technology, and in particular to a powder vibrating sieve. Background Technology

[0002] In the production of electronic-grade glass fiber, the uniformity of the raw material powder is crucial to the quality of the final product. Therefore, a sieving machine is needed to sieve the powder to a specific mesh size to ensure the uniformity of the molten glass and the quality of the final product. For example, utility model publication CN212418663U discloses a raw material sieving device for glass fiber product processing.

[0003] However, existing vibrating sieves for electronic-grade glass fiber production typically lack the ability to handle agglomeration. In practice, because various powder components are prone to agglomeration, these agglomerates must be manually broken down into powder before being fed into the sieve. This process is not only inefficient and time-consuming, but also results in a dusty working environment, seriously affecting worker health. Utility Model Content

[0004] In view of this, this utility model proposes a powder vibrating screen, which achieves secondary crushing and screening of agglomerates through the synergistic action of a vibrating motor, coarse screen, fine screen and blades. With the dust cover for dust prevention, it not only improves screening efficiency, but also helps protect personal safety. It solves the problem that existing powder vibrating screens used in the production of electronic grade glass fiber do not have the ability to handle agglomerates, resulting in low screening efficiency and high dust in the working environment.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a powder vibrating sieve, including a conveyor, a hopper, a coarse sieve, a fine sieve, a first vibrating motor, and a dust cover.

[0007] The hopper is located at the feed inlet of the conveyor, and a coarse screen and a fine screen are arranged sequentially from top to bottom on its inner side, while a first vibrating motor is arranged on its outer side.

[0008] Both the coarse screen and the fine screen are used for screening materials, and both are detachable.

[0009] Both the coarse sieve and the fine sieve are equipped with several blades at their tops;

[0010] The top of the hopper is equipped with an openable dust cover.

[0011] Based on the above technical solutions, preferably, the dust cover is hinged to one side of the hopper via a hinge, and locked to the other side via a latch.

[0012] Based on the above technical solutions, preferably, the conveyor is an auger conveyor.

[0013] Based on the above technical solutions, preferably, the first vibration motor is disposed on the outer wall of the hopper located between the coarse screen and the fine screen, wherein,

[0014] The first vibration motor is arranged in several circumferentially around the hopper.

[0015] Based on the above technical solutions, preferably, the angles at which the blades are set are different, and the heights at which the blades are set are different.

[0016] Based on the above technical solutions, preferably, the interior of the hopper is formed by the coarse and fine screens to include a storage chamber, a filter chamber, and a discharge chamber, wherein...

[0017] The vertical depth of the storage compartment is greater than the vertical depth of the filter compartment;

[0018] The vertical depth of the filter chamber is greater than or equal to the vertical depth of the discharge chamber.

[0019] Based on the above technical solutions, preferably, the front end of the hopper is provided with screen plate insertion holes at positions corresponding to the coarse screen and the fine screen, wherein,

[0020] Screen plate slots are provided on both the left and right sides of the screen plate insertion hole, and the screen plate slots are fixed on the inner side wall of the hopper.

[0021] The left and right ends of the coarse sieve and the fine sieve are fitted with gaps in the sieve plate slots at corresponding positions;

[0022] The front ends of the coarse sieve and the fine sieve pass through the sieve plate insertion holes at corresponding positions, and the front ends of the coarse sieve and the fine sieve are both provided with limiting flanges;

[0023] The limiting flange is fixed to the front end of the hopper by bolts.

[0024] Based on the above technical solutions, preferably, a slag discharge port is provided on the rear side of the bottom of the sieve plate slot.

[0025] Based on the above technical solutions, a preferred embodiment also includes a base, wherein...

[0026] The base is located at the bottom of the conveyor.

[0027] Based on the above technical solutions, preferably, a second vibration motor is also included, wherein...

[0028] The second vibration motor is located inside the base.

[0029] The powder vibrating sieve of this utility model has the following advantages over the prior art:

[0030] (1) By setting up coarse screens, fine screens, and blades, and combining them with the synergistic effect of the first vibrating motor, secondary crushing and screening of agglomerated materials can be achieved, solving the problem that traditional screening machines cannot handle agglomeration and significantly improving screening efficiency. At the same time, the dust cover can effectively reduce dust diffusion, help improve the working environment, and protect the health and safety of workers.

[0031] (2) By setting the conveyor as an auger conveyor, it can suppress dust while conveying materials, further reducing dust diffusion, improving the working environment, and improving the stability and efficiency of material conveying.

[0032] (3) By setting several blades with different angles and heights, multi-directional cutting and impact forces can be provided when the material passes through, thereby effectively breaking up agglomerated materials of various shapes and sizes. Especially for irregularly shaped or hard agglomerated materials, forces can be applied from multiple dimensions, improving crushing efficiency. Due to the differences in the angle and height of the blades, the material will undergo more dynamic changes during the screening process, which helps to break up any possible agglomeration structures and reduce the possibility of screen clogging.

[0033] (4) By setting screen plate slots and screen plate insertion holes, the coarse and fine screens are easy to install and disassemble, easy to clean and replace, and extend the service life of the equipment. In addition, by setting slag discharge ports, dust accumulation in the screen plate slots can be effectively prevented. When the coarse or fine screen is inserted, the dust can be discharged downward from the slag discharge ports, avoiding the blockage problem caused by dust accumulation and ensuring smooth operation of the equipment.

[0034] (5) By setting a second vibration motor, the vibration performance of the equipment is further enhanced, making the material more uniform during conveying and screening, thus improving the overall working efficiency and screening accuracy. Attached Figure Description

[0035] 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.

[0036] Figure 1 This is a schematic diagram of the structure of a powder vibrating sieve according to the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the hopper of this utility model;

[0038] Figure 3 This is a schematic diagram of the coarse screen structure;

[0039] In the diagram: 1. Conveyor; 2. Hopper; 3. Coarse screen; 4. Fine screen; 5. First vibrating motor; 6. Dust cover; 7. Base; 8. Second vibrating motor; 201. Storage bin; 202. Filter bin; 203. Discharge bin; 204. Screen plate insertion hole; 205. Screen plate slot; 2051. Slag discharge port. Detailed Implementation

[0040] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] like Figure 1-3 As shown, the present invention provides a powder vibrating sieve, which includes a conveyor 1, a hopper 2, a coarse sieve 3, a fine sieve 4, a first vibrating motor 5, and a dust cover 6.

[0042] The hopper 2 is located at the feed inlet of the conveyor 1. A coarse screen 3 and a fine screen 4 are arranged in sequence from top to bottom on its inner side, and a first vibrating motor 5 is arranged on its outer side. Both the coarse screen 3 and the fine screen 4 are used for screening materials, and both are detachable. Several blades are arranged on the top of both the coarse screen 3 and the fine screen 4. The top of the hopper 2 is equipped with an openable dust cover 6.

[0043] In this structure, mechanical vibration is provided by the first vibrating motor 5, the material is initially screened by the coarse screen 3, and then screened to the required particle size by the fine screen 4. The screened material is then conveyed out by the conveyor 1. During the process, blades are used to break up agglomerated materials. The coordinated action of all components achieves secondary crushing and screening of agglomerated materials, solving the problem that traditional screening machines cannot handle agglomeration and significantly improving screening efficiency. Simultaneously, the dust cover 6 can seal the feeding port of the hopper 2, effectively reducing dust diffusion, helping to improve the working environment and ensuring the health and safety of workers.

[0044] like Figure 1 As shown, the dust cover 6 is hinged to one side of the hopper 2, and locked to the other side by a latch. This structure allows the dust cover 6 to be opened and closed vertically, which not only facilitates quick opening and closing by operators, but also ensures airtightness, further reducing the risk of dust spillage and improving equipment safety.

[0045] like Figure 1 As shown, conveyor 1 is an auger conveyor, which not only transports materials but also suppresses dust, further reducing dust dispersion, improving the working environment, and enhancing the stability and efficiency of material conveying.

[0046] like Figure 1 As shown, the first vibrating motor 5 is installed on the outer wall of the hopper 2 located between the coarse screen 3 and the fine screen 4. Several first vibrating motors 5 are arranged at circumferential intervals around the hopper 2. This arrangement can provide a more uniform vibration force, allowing the material to be fully vibrated and screened between the coarse screen 3 and the fine screen 4, thereby improving screening efficiency and material uniformity.

[0047] like Figure 3 As shown, several blades are set at different angles and at different heights. This enables multi-directional cutting and impact, as well as optimizing material distribution and flow path.

[0048] The blades, with varying angles and heights, provide multi-directional cutting and impact forces as material passes through, effectively breaking up agglomerated materials of various shapes and sizes. This is particularly effective against irregularly shaped or highly hard agglomerated materials, applying force from multiple dimensions to improve crushing efficiency.

[0049] Blades of varying heights help distribute material more evenly across the screen, preventing uneven screening caused by material accumulation in certain areas. Simultaneously, blades of different heights guide material along different paths, further optimizing material flow and reducing the risk of clogging. Due to the differences in blade angle and height, the material undergoes more dynamic changes during screening, which helps break up potential agglomerates and reduces the likelihood of screen blockage.

[0050] Furthermore, this blade structure enhances screening accuracy because blades of varying heights ensure more meticulous processing of materials during screening, making it easier for fine particles to pass through the screen openings, thus improving screening precision and product particle size consistency. Simultaneously, blades of different heights can process materials at different levels, forming a multi-layered screening system that further enhances screening effectiveness and efficiency.

[0051] like Figure 1 As shown, the interior of the hopper 2 is formed by a coarse screen 3 and a fine screen 4, which forms a storage chamber 201, a filter chamber 202 and a discharge chamber 203. The vertical depth of the storage chamber 201 is greater than the vertical depth of the filter chamber 202; the vertical depth of the filter chamber 202 is greater than or equal to the vertical depth of the discharge chamber 203.

[0052] This structure allows the storage bin 201 to hold more material, reducing the frequency of feeding operations and improving work efficiency. Meanwhile, the rational layout of the filter bin 202 and the discharge bin 203 ensures the step-by-step screening and smooth discharge of materials, avoiding blockages.

[0053] like Figure 2 As shown, screen plate insertion holes 204 are provided at the front end of the hopper 2, corresponding to the positions of the coarse screen 3 and the fine screen 4. Screen plate slots 205 are provided on both the left and right sides of the screen plate insertion holes 204, and the screen plate slots 205 are fixed to the inner side wall of the hopper 2. The left and right ends of the coarse screen 3 and the fine screen 4 are fitted into the screen plate slots 205 at the corresponding positions with clearance. The front ends of the coarse screen 3 and the fine screen 4 pass through the screen plate insertion holes 204 at the corresponding positions, and the front ends of the coarse screen 3 and the fine screen 4 are provided with limiting flanges. The limiting flanges are fixed to the front end of the hopper 2 by bolts.

[0054] The screen plate slot 205 and screen plate insertion hole 204 make it easy to install and disassemble the coarse screen 3 and the fine screen 4, facilitate cleaning and replacement, and extend the service life of the equipment. At the same time, the limiting flange is fixed by bolts to further enhance the stability of the screen plate, prevent displacement during vibration, and facilitate the assembly and disassembly of the coarse screen 3 and the fine screen 4.

[0055] Furthermore, such as Figure 2 As shown, a slag discharge port 2051 is provided on the rear side of the bottom of the sieve plate slot 205. Through the slag discharge port 2051, dust can be effectively prevented from accumulating inside the sieve plate slot 205. When the coarse sieve 3 or fine sieve 4 is inserted, the dust can be discharged downward from the slag discharge port 2051, avoiding the blockage problem caused by dust accumulation and ensuring smooth operation of the equipment.

[0056] like Figure 1-3 As shown, the powder vibrating screen of this utility model also includes a base 7, which is located at the bottom of the conveyor 1. This structure makes the entire device more stable, reduces equipment shaking caused by vibration, and improves the operational stability and safety of the device.

[0057] Furthermore, a second vibration motor 8 is installed inside the base 7. This second vibration motor 8 enhances the vibration performance of the equipment, making the material more uniform during conveying and screening, thus improving overall work efficiency and screening accuracy. The second vibration motor 8 has upper and lower weights. The upper weight drives the screen surface to produce planar rotary vibration, while the lower weight causes the screen surface to produce conical rotary vibration. The combined effect of these two components creates a complex rotary vibration of the screen surface, which in turn vibrates the screen mesh, enhancing the vibration effect and thus improving crushing and screening efficiency.

[0058] In the above structure, the coarse sieve 3 and the fine sieve 4 have the same structure, both including a frame and a screen, wherein, as shown in the figure... Figure 3As shown, the screen is located inside the frame. The frame is used to mate with the screen plate slot 205, and a limiting flange is provided at one end. A blade is provided on the top surface of the screen. The blade can be one or more geometric shapes such as triangles, rectangles, and circles. Figure 3 The blade shown is triangular. Triangular blades have higher cutting ability and can more effectively break up agglomerated materials during vibration, thus improving the crushing efficiency and screening effect of materials.

[0059] The method of using the powder vibrating sieve of this utility model is as follows:

[0060] Before screening, coarse screen 3 and fine screen 4 with appropriate mesh sizes are inserted into hopper 2 through the corresponding screen plate insertion holes 204. Then, the limiting flanges of each are fixed to the front end of hopper 2 with bolts. After fixing, the limiting flanges cover the screen plate insertion holes 204 at the corresponding positions.

[0061] During screening, open the dust cover 6, feed the material into the hopper 2, and then close the dust cover 6. Start the conveyor 1, the first vibrating motor 5, and the second vibrating motor 8. The material in the storage bin 201 is screened for the first time through the coarse screen 3. At the same time, any agglomerated material is broken up for the first time by the blades on the coarse screen 3. Similarly, the material is screened for the second time through the fine screen 4 and broken up for the second time by the blades on the fine screen 4. After the material reaches the required particle size, it passes through the fine screen 4 and enters the conveyor 1 through the discharge bin 203, and is then output by the conveyor 1.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A powder vibrating screen, comprising a conveyor (1), characterized in that: It also includes a hopper (2), a coarse screen (3), a fine screen (4), a first vibrating motor (5), and a dust cover (6), among which, The hopper (2) is located at the feed inlet of the conveyor (1), and a coarse screen (3) and a fine screen (4) are arranged sequentially from top to bottom on its inner side, and a first vibrating motor (5) is arranged on its outer side. Both the coarse screen (3) and the fine screen (4) are used for screening materials, and both are detachable. The top of both the coarse sieve (3) and the fine sieve (4) is provided with several blades; The top of the hopper (2) is provided with an openable dust cover (6).

2. The powder vibrating sieve as described in claim 1, characterized in that: The dust cover (6) is hinged to one side of the hopper (2) and locked to the other side by a latch.

3. The powder vibrating sieve as described in claim 1, characterized in that: The conveyor (1) is an auger conveyor.

4. The powder vibrating sieve as described in claim 1, characterized in that: The first vibrating motor (5) is disposed on the outer wall of the hopper (2) located between the coarse screen (3) and the fine screen (4), wherein, The first vibration motor (5) is arranged in several circumferential intervals around the hopper (2).

5. A powder vibrating sieve as described in claim 1, characterized in that: The blades are set at different angles and at different heights.

6. The powder vibrating sieve as described in claim 1, characterized in that: The hopper (2) contains a storage chamber (201), a filter chamber (202), and a discharge chamber (203) formed by the coarse screen (3) and the fine screen (4). The vertical depth of the storage chamber (201) is greater than the vertical depth of the filter chamber (202); The vertical depth of the filter chamber (202) is greater than or equal to the vertical depth of the unloading chamber (203).

7. A powder vibrating sieve as described in claim 1, characterized in that: The hopper (2) has sieve plate insertion holes (204) at its front end, corresponding to the positions of the coarse sieve (3) and the fine sieve (4). The screen plate insertion hole (204) is provided with screen plate slots (205) on both the left and right sides, and the screen plate slots (205) are fixed on the inner side wall of the hopper (2); The left and right ends of the coarse sieve (3) and the fine sieve (4) are fitted with gaps in the sieve plate slots (205) at corresponding positions; The front ends of the coarse sieve (3) and the fine sieve (4) pass through the sieve plate insertion holes (204) at corresponding positions, and the front ends of the coarse sieve (3) and the fine sieve (4) are provided with limiting flanges; The limiting flange is fixed to the front end of the hopper (2) by bolts.

8. A powder vibrating sieve as described in claim 7, characterized in that: A slag discharge port (2051) is provided on the rear side of the bottom of the sieve plate slot (205).

9. A powder vibrating sieve as described in claim 1, characterized in that: It also includes the base (7), wherein, The base (7) is located at the bottom of the conveyor (1).

10. A powder vibrating sieve as described in claim 9, characterized in that: It also includes a second vibration motor (8), wherein, The second vibration motor (8) is located inside the base (7).

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