Impurity removing device of coarse powder machine
By designing an opening and closing rejection mechanism and a screening mechanism in the coarse powder mill, and adjusting the size of the feed inlet and the magnetic adsorption, the problem of poor removal of magnetic impurities is solved, achieving effective impurity removal, avoiding equipment failure and improving product purity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUQIAN DAJIANG FEED CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-05
AI Technical Summary
In the current coarse powder mill, magnetic impurities cannot be effectively removed during the crushing process, leading to equipment failure and poor product purity.
An impurity removal device was designed, which includes an opening and closing rejection mechanism and a screening mechanism. By adjusting the size of the feed inlet and combining it with magnetic adsorption, along with vibrating screening, the impurity removal effect is improved.
It effectively removes magnetic impurities, avoids equipment damage, and improves product purity.
Smart Images

Figure CN224195266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of impurity removal technology for coarse powder mills, specifically to an impurity removal device for coarse powder mills. Background Technology
[0002] Coarse powder mills are commonly used equipment in industrial production to crush raw materials into particles of a certain size. However, raw materials often contain various impurities, such as screws, metal fragments, and stones. If these impurities are not removed in time, they can damage the screen or other parts of the coarse powder mill during the crushing process, leading to equipment failure, downtime for maintenance, and even affecting the normal operation of the production line.
[0003] In existing technology, the raw materials produced by the coarse powder mill are fed into the feed hopper, where they pass through magnets adsorbed on both sides of the feed pipe to remove magnetic impurities. When the raw materials are fed into the screening hopper, they are screened by an internal screening plate. However, in actual use, because the magnets adhere to the inner wall of the feed pipe, and because the raw materials are directly fed into the feed hopper with a fixed discharge port size, and because different raw materials contain impurities of different particle sizes and densities, and because a large amount of raw materials are fed in at once, the magnets cannot effectively bind with the magnetic impurities in the raw materials. This results in poor removal of magnetic impurities, affecting the purity of the product. Therefore, an improved impurity removal device for the coarse powder mill is needed. Utility Model Content
[0004] The purpose of this invention is to provide an impurity removal device for a coarse powder mill, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an impurity removal device for a coarse powder mill, comprising a removal chamber, a removal pipe fixedly connected to the left side of the removal chamber, an end cap fixedly connected to the front of the removal pipe, a feed chamber fixedly connected to the left side of the removal pipe, an opening and closing removal mechanism provided inside the feed chamber, and a screening mechanism provided inside the removal chamber.
[0006] The opening and closing rejection mechanism includes an opening and closing component and a rejection component, wherein the rejection component is disposed inside the rejection tube;
[0007] The opening and closing assembly includes a fixed frame, which is fixedly connected to the front of the feed hopper. A drive motor is fixedly connected to the front of the fixed frame, and a rotating frame is fixedly connected to the output end of the drive motor. An adjusting column is movably connected to the inner side of the rotating frame. A pull rod is fixedly connected to the front of the adjusting column, and an opening and closing platform is fixedly connected to the back of the pull rod, which facilitates the adjustment of the feed inlet size, thereby adjusting the feed amount each time.
[0008] Preferably, the fixed frame has a groove at the corresponding position of the pull rod, and the pull rod is slidably connected in the groove, which facilitates the synchronous movement of the pull rods on both sides.
[0009] Preferably, a groove is provided at the position corresponding to the opening and closing platform of the feeding hopper, and the opening and closing platform is slidably connected in the groove, so as to facilitate the synchronous movement of the two opening and closing platforms relative to each other.
[0010] Preferably, the rejection assembly includes a connecting frame, which is fixedly connected to the back of the rejection tube. A motor is fixedly connected to the back of the connecting frame, and a gear is fixedly connected to the output end of the motor. A gear is meshed with the gear, and a rotating plate is fixedly connected to the front of the gear. A magnet is fixedly connected to the outside of the rotating plate, which facilitates synchronous rotation of the rotating plate to ensure uniform feeding. At the same time, the magnet attracts magnetic impurities in the coarse powder.
[0011] Preferably, the rejection tube has a hole at the corresponding position of the rotating plate, and the rotating plate is rotatably connected in the hole, which facilitates the stable rotation of the rotating plate.
[0012] Preferably, the screening mechanism includes a fixed block, which is fixedly connected to the inner wall of the rejection chamber. A connecting cylinder is fixedly connected to the top of the fixed block, and a sliding column is slidably connected inside the connecting cylinder. A spring is fixedly connected between the sliding column and the connecting cylinder. A screening plate is fixedly connected to the top of the sliding column, and a vibrator is fixedly connected to the bottom of the screening plate to facilitate material screening.
[0013] Preferably, a groove is provided at the corresponding position of the connecting cylinder and the sliding column, and the sliding column is slidably connected in the groove to facilitate guiding the screen plate to vibrate up and down.
[0014] Compared with the prior art, the present invention provides an impurity removal device for a coarse powder mill, which has the following beneficial effects:
[0015] The impurity removal device of this coarse powder mill, through the set opening and closing removal mechanism, starts the drive motor, which drives the rotating frame to rotate, and then the pull rod synchronously drives the corresponding opening and closing platform to move. This allows the distance between the two opening and closing platforms to be adjusted according to the needs, thereby adjusting the size of the feed hopper discharge port. This avoids a large amount of raw material being put into the removal tube at once, and in the subsequent removal process, the magnetic impurities can be effectively combined with the magnet, thereby improving the removal effect of subsequent magnetic impurities and avoiding affecting the purity of the product.
[0016] The impurity removal device of this coarse powder mill, through the set screening mechanism, starts the vibrator, and the vibrator synchronously drives the screening plate to move along the guide rails of the sliding column and the connecting rails. Then, with the cooperation of the spring, it synchronously drives the screening plate to vibrate up and down, thereby further improving the screening plate's performance in the screening process. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0019] Figure 2 This is a front sectional view of the present invention.
[0020] Figure 3 This is a schematic diagram of the external structure of the opening and closing rejection mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the unfolded structure of the opening and closing component of this utility model;
[0022] Figure 5 This is a schematic diagram of the external structure of the component to be removed in this utility model;
[0023] Figure 6 This is a schematic diagram of the unfolded structure of the screening mechanism of this utility model.
[0024] In the diagram: 1. Rejection bin; 2. Rejection pipe; 3. End cap; 4. Feed bin; 5. Opening and closing rejection mechanism; 6. Screening mechanism; 51. Opening and closing assembly; 52. Rejection assembly; 511. Fixed frame; 512. Drive motor; 513. Rotating frame; 514. Adjusting column; 515. Pull rod; 516. Opening and closing platform; 521. Connecting frame; 522. Motor 1; 523. Gear 1; 524. Gear 2; 525. Rotating plate; 526. Magnet; 61. Fixed block; 62. Connecting cylinder; 63. Spring; 64. Sliding column; 65. Screening plate; 66. Vibrator. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example
[0027] Due to the limitations of current technology, the magnet adheres to the inner wall of the feed pipe. Furthermore, in actual use, raw materials are directly fed into the feed hopper. The feed opening size is fixed, and different raw materials contain impurities of varying particle sizes and densities. The large-scale feeding of raw materials at once prevents the magnet from effectively binding with the magnetic impurities, resulting in poor removal of these impurities and impacting product purity. Please refer to [link to relevant documentation]. Figure 1-6 This utility model provides a technical solution: an impurity removal device for a coarse powder mill, including a removal chamber 1, a removal pipe 2 fixedly connected to the left side of the removal chamber 1, an end cap 3 fixedly connected to the front of the removal pipe 2, a feeding chamber 4 fixedly connected to the left side of the removal pipe 2, an opening and closing removal mechanism 5 provided inside the feeding chamber 4, and a screening mechanism 6 provided inside the removal chamber 1.
[0028] The opening and closing rejection mechanism 5 includes an opening and closing component 51 and a rejection component 52, with the rejection component 52 disposed inside the rejection tube 2;
[0029] The opening and closing assembly 51 includes a fixed frame 511, which is fixedly connected to the front of the feed hopper 4. A drive motor 512 is fixedly connected to the front of the fixed frame 511. A rotating frame 513 is fixedly connected to the output end of the drive motor 512. An adjusting column 514 is movably connected to the inner side of the rotating frame 513. A pull rod 515 is fixedly connected to the front of the adjusting column 514. An opening and closing table 516 is fixedly connected to the back of the pull rod 515, which facilitates the adjustment of the feed inlet size and thus the adjustment of the feed amount each time.
[0030] Furthermore, the fixed frame 511 has a groove at the corresponding position of the pull rod 515, and the pull rod 515 is slidably connected in the groove, which facilitates the synchronous movement of the pull rods 515 on both sides.
[0031] Furthermore, a groove is provided at the corresponding position of the feed hopper 4 and the opening and closing platform 516, and the opening and closing platform 516 is slidably connected in the groove, so as to facilitate the synchronous movement of the two opening and closing platforms 516 relative to each other.
[0032] Furthermore, the rejection assembly 52 includes a connecting frame 521, which is fixedly connected to the back of the rejection tube 2. A motor 522 is fixedly connected to the back of the connecting frame 521. A gear 523 is fixedly connected to the output end of the motor 522. A gear 524 meshes with the gear 523. A rotating plate 525 is fixedly connected to the front of the gear 524. A magnet 526 is fixedly connected to the outside of the rotating plate 525 to facilitate synchronous rotation of the rotating plate 525, so that it can feed the material evenly. At the same time, the magnet 526 adsorbs magnetic impurities in the coarse powder.
[0033] Furthermore, holes are provided at the corresponding positions of the rejection tube 2 and the rotating plate 525, and the rotating plate 525 is rotatably connected in the holes, which facilitates the stable rotation of the rotating plate 525. Example
[0034] Given the current limitations of existing technologies, which require further screening of raw materials, please refer to [link / reference]. Figure 6 Furthermore, in conjunction with Embodiment 1, the screening mechanism 6 includes a fixed block 61, which is fixedly connected to the inner wall of the rejection chamber 1. A connecting cylinder 62 is fixedly connected to the top of the fixed block 61. A sliding column 64 is slidably connected inside the connecting cylinder 62. A spring 63 is fixedly connected between the sliding column 64 and the connecting cylinder 62. A screening plate 65 is fixedly connected to the top of the sliding column 64. A vibrator 66 is fixedly connected to the bottom of the screening plate 65 to facilitate material screening.
[0035] Furthermore, grooves are provided at the corresponding positions of the connecting cylinder 62 and the sliding column 64, and the sliding column 64 is slidably connected in the groove, which facilitates the guiding function and causes the screening plate 65 to vibrate up and down.
[0036] In actual operation, when the device is in use, the raw materials for the coarse powder mill are first fed into the feed hopper 4. Based on the different densities and impurities in the raw materials, the drive motor 512 is activated via the opening and closing rejection mechanism 5. The drive motor 512 drives the rotating frame 513 to rotate, which in turn drives the adjusting columns 514 on both sides to move. During this movement, the adjusting columns 514 simultaneously pull the pull rod 515, which in turn moves the corresponding opening and closing platform 516. This allows the device to adjust the distance between the opening and closing platforms 516 as needed, thereby adjusting the size of the feed opening in the feed hopper 4. This prevents a large amount of raw material from being fed into the rejection tube 2 at once. Furthermore, during subsequent rejection, magnetic impurities can effectively combine with the magnet 526, improving the rejection effect and preventing any impact on product purity. Meanwhile, when the raw material enters the rejection tube 2, the motor 522 is started, which drives the gear 523 to rotate. The gear 523 then drives the gear 524 to rotate, which in turn drives the rotating plate 525 to rotate. The rotating plate 525 synchronously drives the magnet 526 to rotate, thus combining the raw material that falls onto the rejection tube 2 by gravity with the magnet 526 on the rotating plate 525. This effectively removes magnetic impurities from the raw material. The raw material after removing magnetic impurities is then transported to the rejection chamber 1. The vibrator 66 is started through the screening mechanism 6, which synchronously drives the screening plate 65 to move along the guide rails 64 and 63. With the help of the spring 63, the screening plate 65 vibrates up and down, further improving the screening effect of the screening plate 65.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. An impurity removal device for a coarse powder mill, comprising a removal chamber (1), characterized in that: The rejection chamber (1) is fixedly connected to the left side of the rejection tube (2), the rejection tube (2) is fixedly connected to the front side of the end cap (3), the rejection tube (2) is fixedly connected to the left side of the feeding chamber (4), the feeding chamber (4) is provided with an opening and closing rejection mechanism (5), and the rejection chamber (1) is provided with a screening mechanism (6). The opening and closing rejection mechanism (5) includes an opening and closing component (51) and a rejection component (52), wherein the rejection component (52) is disposed inside the rejection tube (2); The opening and closing assembly (51) includes a fixed frame (511), which is fixedly connected to the front of the feed hopper (4). A drive motor (512) is fixedly connected to the front of the fixed frame (511). A rotating frame (513) is fixedly connected to the output end of the drive motor (512). An adjusting column (514) is movably connected to the inner side of the rotating frame (513). A pull rod (515) is fixedly connected to the front of the adjusting column (514). An opening and closing platform (516) is fixedly connected to the back of the pull rod (515).
2. The impurity removal device for a coarse powder mill according to claim 1, characterized in that: The fixed frame (511) has a groove at the corresponding position of the pull rod (515), and the pull rod (515) is slidably connected in the groove.
3. The impurity removal device for a coarse powder mill according to claim 1, characterized in that: The feed hopper (4) has a groove at the corresponding position of the opening and closing platform (516), and the opening and closing platform (516) is slidably connected in the groove.
4. The impurity removal device for a coarse powder mill according to claim 1, characterized in that: The rejection assembly (52) includes a connecting frame (521), which is fixedly connected to the back of the rejection tube (2). A motor (522) is fixedly connected to the back of the connecting frame (521). A gear (523) is fixedly connected to the output end of the motor (522). A gear (524) meshes with the gear (523) externally. A rotating plate (525) is fixedly connected to the front of the gear (524). A magnet (526) is fixedly connected to the outside of the rotating plate (525).
5. The impurity removal device for a coarse powder mill according to claim 4, characterized in that: The removal tube (2) has a hole at the corresponding position of the rotating plate (525), and the rotating plate (525) is rotatably connected in the hole.
6. The impurity removal device for a coarse powder mill according to claim 1, characterized in that: The screening mechanism (6) includes a fixed block (61), which is fixedly connected to the inner wall of the rejection chamber (1). A connecting cylinder (62) is fixedly connected to the top of the fixed block (61). A sliding column (64) is slidably connected inside the connecting cylinder (62). A spring (63) is fixedly connected between the sliding column (64) and the connecting cylinder (62). A screening plate (65) is fixedly connected to the top of the sliding column (64). A vibrator (66) is fixedly connected to the bottom of the screening plate (65).
7. The impurity removal device for a coarse powder mill according to claim 6, characterized in that: The connecting cylinder (62) has a groove at the corresponding position of the sliding column (64), and the sliding column (64) is slidably connected in the groove.