A rapid screening device for impurities in silicon carbide crude

Abstract

The utility model provides a kind of silicon carbide crude product impurity rapid screening equipment, it is related to screening field, including screening mechanism, dust treatment mechanism is fixedly installed in the outer wall of screening mechanism;The screening mechanism includes box, the inner wall of box is slidably connected with first sieve plate and second sieve plate respectively, in the utility model, screening mechanism is cooperated with first sieve plate and second sieve plate, realize the efficient classification screening of silicon carbide crude product, accurately separate different particle size materials and impurities, effectively avoid the problems such as sieve leakage, sieve overflow caused by insufficient experience or physical fluctuation in manual screening process, servo motor is rotated by pulley and synchronous belt drive rotating lever and cam, combined with spring structure, make sieve plate produce high frequency and stable movement, replace the shaking mode of traditional manual handheld sieve, not only significantly reduce labor intensity, more greatly improve screening efficiency, fully meet the demand of large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of screening, and in particular to a rapid screening device for impurities in crude silicon carbide. Background Technology

[0002] Screening refers to the process of separating desired components or removing unwanted impurities from a mixture using certain methods or equipment.

[0003] Rapid screening equipment for crude silicon carbide impurities refers to mechanical equipment used for the efficient separation of impurities in silicon carbide.

[0004] The existing rapid impurity screening equipment for crude silicon carbide has the following shortcomings: Currently, the screening of crude silicon carbide is mostly done manually due to limitations in existing technology. During the operation, workers need to hold the sieve and shake it repeatedly, relying on experience to judge the screening progress. They not only need to manually distinguish between coarse particles and fine powder impurities, but also need to empty and collect the materials at regular intervals. This method is not only labor-intensive, but also affected by differences in the physical strength and operational proficiency of the personnel, resulting in unstable screening accuracy and easy occurrence of missed screening and over-screening. Utility Model Content

[0005] This invention enables efficient grading and screening of crude silicon carbide, accurately separating materials and impurities of different particle sizes, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rapid screening device for crude silicon carbide impurities, comprising a screening mechanism, wherein a dust treatment mechanism is fixedly installed on the outer wall of the screening mechanism; the screening mechanism includes a housing, wherein a first sieve plate and a second sieve plate are slidably connected to the inner wall of the housing, and connecting blocks are fixedly connected to the inner wall of each housing, wherein a spring is fixedly connected to the top of each connecting block; a set of rotating rods is movably inserted into the inner wall of the housing, wherein a cam is fixedly connected to the outer wall of each rotating rod; a set of fixing plates is fixedly installed on the front of the housing, wherein a set of pulleys is movably inserted into the inner wall of each fixing plate, and a servo motor is fixedly installed on the front of one of the fixing plates. Through the above components, crude silicon carbide can be screened in multiple stages, accurately separating materials and impurities of different particle sizes, significantly improving screening accuracy compared to manual screening.

[0007] Preferably, the outer wall of the box is fixedly connected to support legs, and the bottom of each support leg is fixedly connected to an anti-slip pad. The support legs provide stable support for the equipment and prevent the equipment from tipping over during the screening process. The anti-slip pads at the bottom increase the friction with the ground and further improve the stability of the equipment.

[0008] Preferably, a PLC controller is fixedly installed on one side of the front of the box, and a feed cover is hinged to the top of the box. The feed cover is easy to open for adding materials, and can be closed during screening to prevent dust from overflowing from the feed inlet.

[0009] Preferably, a set of discharge baffles is hinged to one side of the outer wall of the box. Each discharge baffle is fixedly connected to a limiting rod, and each outer wall of the box is movably inserted with a limiting plate. The inner wall of the limiting plate is slidably connected to the outer wall of the limiting rod. After the discharge baffle is opened, the qualified materials or impurities after screening can be quickly discharged. Through the cooperation of the limiting rod and the limiting plate, the discharge baffle can be firmly fixed, avoiding accidental opening of the discharge baffle during screening and resulting in material leakage.

[0010] Preferably, one end of the spring is fixedly connected to the top of the connecting block, and the other end of the spring is fixedly connected to the bottom of the first sieve plate and the second sieve plate. The spring is configured to quickly drive the sieve plate to reset after the cam lifts the sieve plate.

[0011] Preferably, a synchronous belt is fitted on the inner wall of the pulley, and the synchronous belt is connected to the pulley by frictional transmission. The outer wall of the pulley is fixedly connected to one end of the rotating rod, and the output end of the servo motor is fixedly connected to the front of one of the pulleys. The pulley and the synchronous belt are driven by friction, which has high transmission efficiency and smooth operation, and can evenly transmit the power of the servo motor to the rotating rod to ensure stable cam speed.

[0012] Preferably, a collection box is slidably connected to the inner wall of the box, and handles are fixedly connected to the outer walls of both the collection box and the discharge baffle. The collection box can collect the fine powder or impurities after screening, and can be pulled out for cleaning by the handle after it is full.

[0013] Preferably, a self-locking wheel is fixedly installed at the bottom of the collection box, which allows the collection box to slide easily.

[0014] Preferably, the dust treatment mechanism includes a cyclone separator, with a connecting pipe fixedly connected to the top of the cyclone separator and connected to the interior of the housing. The bottom of the cyclone separator is fixedly connected to a discharge pipe. The cyclone separator is connected to the housing through the connecting pipe, which can quickly extract the dust-laden airflow inside the housing and use centrifugal force to separate most of the coarse dust particles, thus achieving preliminary dust treatment. The separated dust is discharged through the discharge pipe, reducing the processing load of the subsequent bag filter dust collector.

[0015] Preferably, a bag filter is fixedly connected to the bottom of the discharge pipe, and a discharge pipe is fixedly connected to the bottom of the bag filter. The bag filter can perform deep filtration of fine powder that has not been separated by the cyclone separator.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the screening mechanism achieves efficient grading and screening of crude silicon carbide through the coordinated operation of the first and second screen plates, accurately separating materials and impurities of different particle sizes. This effectively avoids problems such as missed screening and over-screening caused by insufficient experience or fluctuations in physical strength during manual screening. The servo motor drives the rotating rod and cam to rotate through the pulley and synchronous belt, combined with the spring structure, so that the screen plate generates high-frequency and stable motion, replacing the shaking method of traditional manual hand-held screens. This not only significantly reduces labor intensity but also greatly improves screening efficiency, fully meeting the needs of large-scale production. In addition, a discharge baffle is set on the outer wall, and with the help of the limiting rod and limiting plate structure, the material is quickly discharged and sealed to prevent leakage during the screening process, further optimizing the overall operation process and improving the automation and safety of the equipment.

[0017] 2. In this utility model, the dust treatment mechanism adopts a cyclone separator and a bag filter working together to effectively solve the environmental pollution and health hazards caused by dust emission during the screening process. The cyclone separator draws the dust-laden airflow from the box through the connecting pipe and uses centrifugal force to achieve the initial separation of coarse dust particles. Subsequently, the gas enters the bag filter for deep filtration, efficiently removing fine powder and ensuring that the emission dust concentration meets the standards and environmental protection requirements. The box is equipped with a collection box, which can centrally collect the separated fine powder or impurities. With the bottom self-locking wheel and the outer wall handle design, it is easy for the staff to pull out and clean. The front is integrated with a PLC controller, which supports precise control of screening parameters, significantly reducing the difficulty of equipment operation and daily maintenance costs, and realizing intelligent and convenient dust management. Attached Figure Description

[0018] Figure 1 This utility model provides a three-dimensional view of the main structure of a rapid screening device for impurities in crude silicon carbide products. Figure 2 An enlarged perspective view of the interconnected structure of the housings in a rapid screening device for crude silicon carbide impurities is provided for this utility model. Figure 3 An enlarged perspective view of the first screen connection structure in a rapid screening device for impurities in crude silicon carbide is provided for this utility model. Figure 4 An enlarged perspective view of the rotating rod connection structure in a rapid screening device for crude silicon carbide impurities is provided for this utility model. Figure 5 An enlarged perspective view of the structure connecting the collection box in a rapid screening device for impurities in crude silicon carbide is provided for this utility model. Figure 6 This invention presents an enlarged perspective view of the cyclone separator connected to a rapid screening device for impurities in crude silicon carbide products.

[0019] Legend: 1. Screening Mechanism; 101. Housing; 102. Servo Motor; 103. Synchronous Belt; 104. Fixing Plate; 105. Support Leg; 106. Anti-slip Mat; 107. Discharge Baffle; 108. Limiting Plate; 109. Handle; 110. Limiting Rod; 111. Feed Cover Plate; 112. First Screen Plate; 113. Spring; 114. Second Screen Plate; 115. Connecting Block; 116. Cam; 117. Rotating Rod; 118. Pulley; 119. Collection Box; 120. Self-Locking Wheel; 121. PLC Controller; 2. Dust Handling Mechanism; 201. Cyclone Separator; 202. Connecting Pipe; 203. Discharge Pipe; 204. Bag Filter; 205. Discharge Pipe. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figures 1-6 This utility model provides a technical solution: a rapid screening device for impurities in crude silicon carbide, including a screening mechanism 1, with a dust treatment mechanism 2 fixedly installed on the outer wall of the screening mechanism 1; the screening mechanism 1 includes a box 101, with a first sieve plate 112 and a second sieve plate 114 slidably connected to the inner wall of the box 101 respectively, and connecting blocks 115 fixedly connected to the inner wall of the box 101, with springs 113 fixedly connected to the top of each connecting block 115, a set of rotating rods 117 movably inserted into the inner wall of the box 101, with cams 116 fixedly connected to the outer wall of each rotating rod 117, and a set of fixing plates 104 fixedly installed on the front of the box 101, with a set of pulleys 118 movably inserted into the inner wall of the fixing plates 104, and a servo motor 102 fixedly installed on the front of one of the fixing plates 104. Through the above components, crude silicon carbide can be screened in multiple stages, accurately separating materials and impurities of different particle sizes, significantly improving screening accuracy compared to manual screening.

[0023] like Figure 2 As shown, the outer wall of the housing 101 is fixedly connected with support legs 105, and the bottom of the support legs 105 is fixedly connected with anti-slip pads 106. The support legs 105 provide stable support for the equipment and prevent the equipment from tipping over during the vibration screening process. The anti-slip pads 106 at the bottom increase the friction with the ground and further improve the stability of the equipment.

[0024] like Figure 2 As shown, a PLC controller 121 is fixedly installed on one side of the front of the housing 101. The top of the housing 101 is hinged to a feed cover 111. The feed cover 111 is easy to open for adding materials, and can be closed during screening to prevent dust from overflowing from the feed inlet.

[0025] like Figure 2 As shown, a set of discharge baffles 107 are hinged to one side of the outer wall of the box 101. Each discharge baffle 107 is fixedly connected to a limiting rod 110. Each outer wall of the box 101 is movably inserted with a limiting plate 108. The inner wall of the limiting plate 108 is slidably connected to the outer wall of the limiting rod 110. After the discharge baffle 107 is opened, the qualified materials or impurities after screening can be quickly discharged. Through the cooperation of the limiting rod 110 and the limiting plate 108, the discharge baffle 107 can be firmly fixed, avoiding accidental opening of the discharge baffle 107 during screening and causing material leakage.

[0026] like Figure 3 As shown, one end of the spring 113 is fixedly connected to the top of the connecting block 115, and the other end of the spring 113 is fixedly connected to the bottom of the first sieve plate 112 and the second sieve plate 114. The spring 113 is designed to quickly drive the sieve plate to reset after the cam 116 lifts the sieve plate.

[0027] like Figure 2 and Figure 4 As shown, a synchronous belt 103 is fitted on the inner wall of the pulley 118. The synchronous belt 103 is connected to the pulley 118 by frictional transmission. The outer wall of the pulley 118 is fixedly connected to one end of the rotating rod 117. The output end of the servo motor 102 is fixedly connected to the front of one of the pulleys 118. The pulley 118 and the synchronous belt 103 are driven by friction, which has high transmission efficiency and smooth operation. It can evenly transmit the power of the servo motor 102 to the rotating rod 117, ensuring the stable speed of the cam 116.

[0028] like Figure 2 and Figure 5 As shown, a collection box 119 is slidably connected to the inner wall of the box 101. A handle 109 is fixedly connected to the outer wall of both the collection box 119 and the discharge baffle 107. The collection box 119 can collect fine powder or impurities after screening. After it is full, it can be pulled out for cleaning through the handle 109.

[0029] like Figure 5 As shown, a self-locking wheel 120 is fixedly installed at the bottom of the collection box 119, which allows the collection box 119 to slide easily.

[0030] like Figure 6As shown, the dust treatment mechanism 2 includes a cyclone separator 201. The top of the cyclone separator 201 is fixedly connected to a connecting pipe 202, which is connected to the interior of the housing 101. The bottom of the cyclone separator 201 is fixedly connected to a discharge pipe 203. The cyclone separator 201 is connected to the housing 101 through the connecting pipe 202, which can quickly extract the dust-laden airflow inside the housing 101 and use centrifugal force to separate most of the coarse dust particles, thus achieving preliminary dust treatment. The separated dust is discharged through the discharge pipe 203, reducing the processing load of the subsequent bag filter 204.

[0031] like Figure 6 As shown, a bag filter 204 is fixedly connected to the bottom of the discharge pipe 203, and a discharge pipe 205 is fixedly connected to the bottom of the bag filter 204. The bag filter 204 can perform deep filtration on the fine powder that is not separated by the cyclone separator 201.

[0032] The operating method and working principle of this device are as follows: Silicon carbide crude material is added through the feed cover 111. After closing the cover, the device is started using the control panel on the PLC controller 121. At this time, the servo motor 102 starts running, and its output drives the fixed pulley 118 to rotate. This pulley 118, through the frictional transmission of the synchronous belt 103, drives another pulley 118 to rotate synchronously. This causes the rotating rod 117, which is fixedly connected to the pulley 118, to rotate on the inner wall of the housing 101. When the cam 116 on the outer wall of the rotating rod 117 rotates with the rotating rod 117, it periodically pushes up the first screen plate 112 and the second screen plate 114, which are slidably connected inside the housing 101. The bottoms of the first screen plate 112 and the second screen plate 114 are fixed to the connecting block 115 on the inner wall of the housing 101 by springs 113. When the cam 116 stops pushing up the screen plate, the restoring force of the spring 113 causes the screen plate to fall back down. This cycle repeats, realizing the rotation of the first screen plate 112 and the second screen plate 114. The high-frequency stable vibration performs multi-stage screening of crude silicon carbide, effectively separating materials and impurities of different particle sizes. During the screening process, the dust generated inside the housing 101 is drawn into the cyclone separator 201 through the connecting pipe 202. The cyclone separator 201 uses centrifugal force to separate most of the coarse dust particles. These coarse dust particles enter the bag filter 204 through the discharge pipe 203, while the unseparated fine powder continues to enter the bag filter 204 with the airflow. After deep filtration, the clean gas is discharged, and the filtered fine powder is discharged through the discharge pipe 205. After screening, the servo motor 102 is turned off, and the limiting plate 108 is rotated to separate it from the limiting rod 110 on the discharge baffle 107. The discharge baffle 107 is then opened to discharge the qualified material after screening. At the same time, the self-locking wheel 120 is unlocked, and the collection box 119 is pulled out through the handle 109. The design of the self-locking wheel 120 makes operation easier and facilitates the unified processing of the fine powder or impurities collected inside.

[0033] The PLC controller 121, servo motor 102, cyclone separator 201, and bag filter 204 used in this application are all common equipment on the market and are well known to those skilled in the art. In this application, the above equipment is used in a conventional manner without any improvement to its structure and function. As for their settings, installation, and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rapid screening device for impurities in crude silicon carbide products, characterized in that, Includes a screening mechanism (1), and a dust treatment mechanism (2) is fixedly installed on the outer wall of the screening mechanism (1). The screening mechanism (1) includes a box (101), the inner wall of the box (101) is slidably connected with a first sieve plate (112) and a second sieve plate (114), the inner wall of the box (101) is fixedly connected with a connecting block (115), the top of the connecting block (115) is fixedly connected with a spring (113), a set of rotating rods (117) is movably inserted into the inner wall of the box (101), the outer wall of the rotating rods (117) is fixedly connected with a cam (116), a set of fixing plates (104) is fixedly installed on the front of the box (101), a set of pulleys (118) is movably inserted into the inner wall of the fixing plate (104), and a servo motor (102) is fixedly installed on the front of one of the fixing plates (104).

2. The rapid screening device for impurities in crude silicon carbide as described in claim 1, characterized in that: The outer wall of the box (101) is fixedly connected with support legs (105), and the bottom of the support legs (105) is fixedly connected with anti-slip pads (106).

3. The rapid screening device for impurities in crude silicon carbide according to claim 1, characterized in that: A PLC controller (121) is fixedly installed on one side of the front of the housing (101), and a feed cover plate (111) is hinged to the top of the housing (101).

4. The rapid screening device for impurities in crude silicon carbide according to claim 1, characterized in that: A set of discharge baffles (107) is hinged to one side of the outer wall of the box (101). Each discharge baffle (107) is fixedly connected to a limiting rod (110). Each outer wall of the box (101) is movably inserted with a limiting plate (108). The inner wall of the limiting plate (108) is slidably connected to the outer wall of the limiting rod (110).

5. The rapid screening device for impurities in crude silicon carbide according to claim 1, characterized in that: One end of the spring (113) is fixedly connected to the top of the connecting block (115), and the other end of the spring (113) is fixedly connected to the bottom of the first sieve plate (112) and the second sieve plate (114).

6. The rapid screening device for impurities in crude silicon carbide according to claim 1, characterized in that: The inner wall of the pulley (118) is fitted with a synchronous belt (103), the synchronous belt (103) and the pulley (118) are connected by frictional transmission, the outer wall of the pulley (118) is fixedly connected to one end of the rotating rod (117), and the output end of the servo motor (102) is fixedly connected to the front of one of the pulleys (118).

7. The rapid screening device for impurities in crude silicon carbide according to claim 1, characterized in that: The inner wall of the box (101) is slidably connected to a collection box (119), and the outer walls of the collection box (119) and the discharge baffle (107) are both fixedly connected to handles (109).

8. The rapid screening device for impurities in crude silicon carbide according to claim 7, characterized in that: The bottom of the collection box (119) is fixedly equipped with a self-locking wheel (120).

9. The rapid screening device for impurities in crude silicon carbide according to claim 1, characterized in that: The dust treatment mechanism (2) includes a cyclone separator (201), the top of which is fixedly connected to a connecting pipe (202), the connecting pipe (202) being connected to the interior of the housing (101), and the bottom of which is fixedly connected to a discharge pipe (203).

10. The rapid screening device for impurities in crude silicon carbide according to claim 9, characterized in that: The bottom of the discharge pipe (203) is fixedly connected to a bag filter (204), and the bottom of the bag filter (204) is fixedly connected to a discharge pipe (205).

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