High-efficiency discharging raymond mill

By introducing anti-bridging components and elastic suspension structures into Raymond mills, the problems of material bridging and uneven cleaning have been solved, achieving efficient material discharge and long service life of the equipment.

CN224926157UActive Publication Date: 2026-11-03BOAI COUNTY HAINASH NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202522336597.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2026-11-03
Estimated Expiration
2035-11-03

AI Technical Summary

Technical Problem

Existing Raymond mills are prone to problems such as material bridging, poor feeding, and uneven dust blowing leading to dust accumulation and filter damage when processing materials that are highly adhesive.

Method used

The system employs an arch-breaking component and an adjustable feed plate to achieve uniform feeding. Combined with an elastic suspension structure and a guide plate design, it improves airflow distribution, avoids rigid impacts, and enhances the unblocking effect.

Benefits of technology

It effectively breaks up material bridging, ensures continuous and uniform feeding, improves grinding efficiency, extends equipment life, and prevents dust from rising and filter screen damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high -efficient discharge's raymond mill, it includes feed hopper, the inner side wall of feed hopper is provided with arch breaking subassembly, the arch breaking subassembly includes arch breaking prong, connecting seat, gyro wheel, cam no.
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Description

Technical Field

[0001] This utility model relates to the field of Raymond mill technology, specifically to a Raymond mill with high-efficiency material discharge. Background Technology

[0002] Raymond mill is a type of powder-making equipment widely used in industries such as mining, chemical, and building materials. Its core working principle is to crush materials through the squeezing and shearing action of grinding rollers and grinding rings, and to dynamically screen fine powder with the help of an airflow classification system to form a closed-loop production cycle.

[0003] The prior art patent document CN 219898291 U discloses a high-efficiency discharge Raymond mill, comprising a Raymond mill body, a base plate fixed to the lower surface of the Raymond mill body, a dust collection bin fixed to the upper surface of the base plate, a sealing door hinged to the front of the dust collection bin, a grinding assembly disposed on the back of the Raymond mill body, an anti-clogging mechanism disposed on the left side of the dust collection bin, and a feeding mechanism disposed on the left side of the Raymond mill body. This high-efficiency discharge Raymond mill incorporates an anti-clogging mechanism. By configuring a first motor, a rotating rod, a cam, a first filter screen, a support plate, a fan, and a connecting pipe, the up-and-down movement of the first filter screen is achieved. This up-and-down movement of the first filter screen prevents dust clogging, solving the problem that during the operation of the Raymond mill, dust adheres to the filter screen, clogging it over time and affecting the discharge efficiency.

[0004] Although the device has many beneficial effects, the following problems still exist: For materials such as calcined petroleum coke and phenolic resin, which are highly adhesive, the gap between the spiral blades and the inner wall of the conveying bin will be quickly filled by the material, causing the material to arch and the shaft to seize. Secondly, the horizontal fan located at the bottom of the bin cannot evenly apply airflow to the entire lower surface of the filter screen, resulting in dead corners in the cleaning process. Furthermore, positive pressure blowing can easily cause fine powder to rise again, which is not conducive to efficient material discharge. At the same time, the double cam impacting the support plate of the filter screen is a rigid and localized impact, which can easily lead to fatigue deformation of the support plate and local damage to the filter screen in the long run. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved:

[0007] In order to solve the problems of anti-clogging structure defects and easy jamming of feeding structure mentioned above, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a Raymond mill with high-efficiency material discharge. The mechanical arch-breaking mechanism can effectively break up the arches of sticky materials. With the adjustable feed plate, uniform and controllable feeding can be achieved. At the same time, the direct airflow is optimized into a vortex air sweep with no dead angles through the guide plate, which solves the problems of uneven cleaning and dust rising. In addition, the spring-suspended filter assembly is adopted to change the rigid impact into flexible vibration, which greatly improves the uniformity of the unblocking effect and the service life and reliability of the mechanism.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] A high-efficiency Raymond mill for material discharge includes a Raymond mill body and a feed hopper. The inner side wall of the feed hopper is provided with an arch-breaking component, which includes an arch-breaking fork. A connecting rod is integrally formed and connected to the side wall of the arch-breaking fork. A connecting seat is fixedly connected to the side wall of the connecting rod through the feed hopper. A roller is hinged to the side wall of the connecting seat. A cam is rotatably connected to the outer circumference of the roller. A discharge plate is provided below the arch-breaking fork. A housing is inserted into the side wall of the discharge plate. An adjusting threaded rod is welded to the side wall of the discharge plate.

[0012] An anti-clogging component is provided at the bottom of the outer casing. The anti-clogging component includes a mounting frame. A filter screen is fixedly connected to the inner side wall of the mounting frame. A connecting spring is fixedly connected to the top of the mounting frame. A wear-resistant plate is fixedly connected to the bottom of the mounting frame. A cam is slidably connected to the bottom of the wear-resistant plate. An outer casing is slidably connected to the side wall of the mounting frame. A fan is inserted into the outer side wall of the outer casing. A guide plate is fixedly connected to the inner side wall of the outer casing.

[0013] As a preferred embodiment of the Raymond mill for high-efficiency material discharge according to this utility model, the arch-breaking component includes a support plate, a motor is fixedly connected to the top of the support plate, a rotating shaft is fixedly connected to the output end of the motor, a plurality of cams are sleeved on the outer circumference of the rotating shaft, a support is sleeved on the side wall of the rotating shaft, and the bottom of the support is integrally formed and connected to the support plate.

[0014] As a preferred embodiment of the Raymond mill for high-efficiency material discharge according to this utility model, the Raymond mill body is arranged below the feed hopper. The Raymond mill body includes a second support plate. The side wall of the second support plate is integrally formed and connected to the first outer shell. A second motor is fixedly connected to the top of the second support plate. A gear set is fixedly connected to the output end of the second motor. Multiple drive shafts are inserted into the side wall of the gear set. Pressure rollers are sleeved on the outer circumference of the drive shaft. A control button board is fixedly connected to the outer side wall of the first outer shell.

[0015] As a preferred embodiment of the Raymond mill for high-efficiency material discharge according to this utility model, the anti-clogging component includes a discharge hopper, the top of which is fixedly connected to the outer shell II, the outer side wall of the outer shell II is integrally formed and connected to a support plate III, the top of the support plate III is fixedly connected to a motor III, the output end of the motor III is fixedly connected to a rotating shaft II, and a plurality of cams II are sleeved on the outer circumference of the rotating shaft II.

[0016] In a preferred embodiment of the Raymond mill for efficient material discharge according to this utility model, the side wall of the discharge plate is integrally formed with a baffle, the baffle having an arc structure; the outer circumference of the adjusting threaded rod is threaded with a locking nut; the side wall of the connecting seat is integrally formed with a mounting plate; the side wall of the mounting plate is fixedly connected with a tension spring; the side wall of the tension spring is fixedly connected to the feed hopper; and a sealing ring is sleeved on the outer circumference of the connecting rod, the outer circumference of the sealing ring being bonded to the feed hopper.

[0017] As a preferred embodiment of the Raymond mill for high-efficiency material discharge according to this utility model, the side walls of the outer shell are provided with multiple adjustment slots, the adjustment slots are arc-shaped, and the control button board is electrically connected to the first motor, the second motor, the third motor and the fan.

[0018] As a preferred embodiment of the Raymond mill for high-efficiency material discharge according to this utility model, a corrugated pipe is sleeved on the outer circumference of the connecting spring, the bottom of the corrugated pipe is fixedly connected to the mounting frame, the top of the corrugated pipe and the top of the connecting spring are both fixedly connected to mounting ears, the side wall of the mounting ears is fixedly connected to the outer shell, and the output end of the blower is fixedly connected to a baffle net.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This type of high-efficiency Raymond mill with discharge mechanism is equipped with an arch-breaking fork driven by a motor and driven by a cam-spring mechanism. This fork can actively and mechanically break the "bridges" formed by the material in the feed hopper, effectively solving the problems of poor feeding and interruption caused by the high viscosity of calcined petroleum coke and phenolic resin. This ensures the uniformity and continuity of the Raymond mill's feeding. At the same time, the adjustable feed plate structure allows operators to accurately control the feed amount according to the actual working conditions, further optimizing the grinding efficiency and avoiding the main unit from running idle or overloaded.

[0022] This high-efficiency Raymond mill innovatively adopts an elastic suspension structure: the mounting frame is suspended inside the outer shell by multiple connecting springs, and its bottom is equipped with a wear-resistant plate that contacts the cam. This converts the violent rigid impact into flexible high-frequency low-amplitude vibration, which greatly buffers the impact force. This not only effectively protects the filter screen and support structure, avoiding fatigue deformation and local damage, but also makes the unclogging action more gentle and efficient. In addition, the bellows added to the connecting springs completely solves the failure risk of spring jamming caused by dust intrusion, greatly improving the reliability and service life of the vibration mechanism. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0024] Figure 1 This is a schematic diagram of the overall structure of a Raymond mill with high-efficiency material discharge according to the present invention.

[0025] Figure 2 This is a front view of the overall structure of a Raymond mill with high-efficiency material discharge according to the present invention;

[0026] Figure 3 This is a schematic diagram of the arch-breaking component structure of a Raymond mill with high-efficiency material discharge according to the present invention.

[0027] Figure 4 This is a schematic diagram of the main structure of a Raymond mill for high-efficiency material discharge according to the present invention.

[0028] Figure 5 This is a schematic diagram of the anti-clogging component structure of a Raymond mill with high-efficiency material discharge according to this utility model.

[0029] Explanation of the numbers in the diagram: 100, Feed hopper; 200, Arch-breaking assembly; 210, Support plate one; 211, Motor one; 220, Rotating shaft one; 230, Cam one; 240, Roller; 250, Connecting seat; 251, Sealing ring; 260, Tension spring; 270, Arch-breaking fork; 280, Discharge plate; 281, Baffle; 290, Adjusting threaded rod; 300, Raymond mill body; 310, Outer shell one; 311, Support plate two 312. Control button panel; 320. Motor II; 330. Gear set; 340. Pressure roller; 400. Anti-clogging component; 410. Housing II; 411. Discharge hopper; 412. Guide plate; 413. Mounting ear; 414. Support plate III; 420. Mounting frame; 421. Wear-resistant plate; 430. Connecting spring; 431. Bellows; 440. Rotating shaft II; 450. Cam II; 460. Motor III; 470. Fan. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0032] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0035] This utility model provides an overall structural diagram of an embodiment of a Raymond mill with high-efficiency material discharge, including:

[0036] Please see Figures 1-5This embodiment of a high-efficiency Raymond mill includes a Raymond mill body 300 and a feed hopper 100. An arch-breaking assembly 200 is provided on the inner wall of the feed hopper 100. The arch-breaking assembly 200 includes an arch-breaking fork 270, which mechanically crushes existing material arches through reciprocating motion. A connecting rod is integrally formed on the side wall of the arch-breaking fork 270. The side wall of the connecting rod passes through the feed hopper 100 and is fixedly connected to a connecting seat 250. A roller is hinged to the side wall of the connecting seat 250. 240, the outer circumference of the roller 240 is connected to the cam 230, the cam 230 provides thrust by rotating, and the roller 240 drives the arch-breaking fork 270 to perform the "poke" action. The lower part of the arch-breaking fork 270 is provided with a feeding plate 280, which is used to realize stepless control of the feeding amount. The side wall of the feeding plate 280 is inserted with the outer shell 310, and the side wall of the feeding plate 280 is welded with an adjusting threaded rod 290, which makes it convenient for the user to adjust the tilt angle of the feeding plate 280.

[0037] An anti-clogging component 400 is provided below the outer casing 310. The anti-clogging component 400 includes a mounting frame 420. A filter screen is fixedly connected to the inner side wall of the mounting frame 420. A connecting spring 430 is fixedly connected to the top of the mounting frame 420. A wear-resistant plate 421 is fixedly connected to the bottom of the mounting frame 420. A cam 450 is fixedly and slidably connected to the bottom of the wear-resistant plate 421. The outer casing 410 is slidably connected to the side wall of the mounting frame 420. A fan 470 is inserted into the outer side wall of the outer casing 410. The air outlet of the fan 470 is tilted downward to provide the airflow required for clearing the blockage. A guide plate 412 is fixedly connected to the inner side wall of the outer casing 410 to convert the direct airflow blown out by the fan 470 into a vortex airflow rotating downward along the wall of the casing.

[0038] It is worth noting that, in order to achieve material arch breaking, specifically, the arch breaking component 200 includes a support plate 210, a motor 211 is fixedly connected to the top of the support plate 210 by bolts, the output end of the motor 211 is fixedly connected to a rotating shaft 220 by an external transmission key, multiple cams 230 are sleeved on the outer circumference of the rotating shaft 220, a support is sleeved on the side wall of the rotating shaft 220, and the bottom of the support is integrally formed and connected to the support plate 210.

[0039] Next, to facilitate the crushing and grinding of materials, a Raymond mill body 300 is set below the feed hopper 100. The Raymond mill body 300 includes a second support plate 311. The side wall of the second support plate 311 is integrally formed and connected to the first outer shell 310. The top of the second support plate 311 is fixedly connected to a second motor 320 by bolts. The output end of the second motor 320 is fixedly connected to a gear set 330 by an external transmission key. Multiple transmission shafts are inserted into the side wall of the gear set 330. Pressure rollers 340 are sleeved on the outer circumference of the transmission shafts. A control button plate 312 is fixedly connected to the outer side wall of the first outer shell 310.

[0040] Meanwhile, to prevent material blockage, specifically, the anti-blockage component 400 includes a discharge hopper 411, which can be connected to other receiving pipes or receiving equipment. The top of the discharge hopper 411 is welded with a second outer shell 410. The outer wall of the second outer shell 410 is integrally formed and connected to a support plate 414. The top of the support plate 414 is fixedly connected to a motor 460 by bolts. The output end of the motor 460 is fixedly connected to a rotating shaft 440 by an external transmission key. Multiple cams 450 are sleeved on the outer circumference of the rotating shaft 440.

[0041] Furthermore, to improve the arch-breaking effect, specifically, the side wall of the feeding plate 280 is integrally formed with a baffle 281. The baffle 281 has an arc structure and is used to cooperate with the arc-shaped adjustment groove on the outer shell 310 to ensure that the movement trajectory of the feeding plate is stable and well sealed during the adjustment process. The outer circumferential wall of the adjusting threaded rod 290 is threaded with a locking nut. The side wall of the connecting seat 250 is integrally formed with a mounting plate. The side wall of the mounting plate is fixedly connected with a tension spring 260, which is used to pull the arch-breaking fork 270 back to its original position. The side wall of the tension spring 260 is fixedly connected with the feed hopper 100. The outer circumferential wall of the connecting rod is fitted with a sealing ring 251 to form a dynamic seal, prevent dust leakage, ensure a clean working environment, and reduce material loss. The outer circumferential wall of the sealing ring 251 is bonded to the feed hopper 100.

[0042] It is worth noting that, in order to facilitate the tilt adjustment of the feeding plate 280, specifically, the side wall of the outer casing 310 is provided with multiple adjustment slots. The adjustment slots are arc-shaped and are used to realize the stepless rotation adjustment of the feeding plate 280 within the angle range of 30 degrees to 60 degrees. The control button board 312 is electrically connected to the motor 211, the second motor 320, the third motor 460 and the fan 470.

[0043] Finally, to facilitate the installation of the frame 420, specifically, a corrugated pipe 431 is fitted around the outer circumference of the connecting spring 430 for sealing and protection of the connecting spring 430. The bottom of the corrugated pipe 431 is fixedly connected to the mounting frame 420. The top of the corrugated pipe 431 and the top of the connecting spring 430 are both fixedly connected to the mounting ears 413 by bolts. The side wall of the mounting ears 413 is welded with the outer shell 410. The output end of the fan 470 is fixedly connected to the baffle net by screws for blocking materials.

[0044] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0045] Combination Figures 1-5 The specific usage process of this embodiment of a high-efficiency discharge Raymond mill is as follows:

[0046] 1. According to the material characteristics, loosen the locking nut and rotate the adjusting threaded rod 290 to change the angle of the feeding plate 280, thereby adjusting the opening of the feeding port. After the adjustment is completed, tighten the locking nut to fix it. Then start the motor 211, which drives the cam 230 to rotate through the shaft 220. With the cooperation of the roller 240 structure and the return movement of the tension spring 260, the arch-breaking fork 270 starts to reciprocate to prevent arching.

[0047] 2: Start the blower 470, motor 3 460 and motor 2 320 in sequence via the control button panel 312. After the equipment is running smoothly, start feeding material into the feed hopper 100.

[0048] 3: The material is crushed and ground by the pressure roller 340 and falls onto the filter screen for screening. Then, the cam 450 is driven to rotate by the rotating shaft 440. With the help of the connecting spring 430, the mounting frame 420 bounces up and down. The fan 470 actively provides cleaning airflow, which, together with the guide plate 412, forms a vortex airflow, further improving the anti-clogging effect of the anti-clogging component 400. Finally, the material is discharged from the discharge hopper 411.

[0049] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A Raymond mill with high-efficiency discharge, comprising a Raymond mill body (300), characterized in that, It also includes a feeding hopper (100), the inner side wall of which is provided with an arch-breaking assembly (200), the arch-breaking assembly (200) includes an arch-breaking fork (270), the side wall of which is integrally formed and connected with a connecting rod, the side wall of which passes through the feeding hopper (100) and is fixedly connected with a connecting seat (250), the side wall of which is hinged to a roller (240), the outer circumferential wall of which is circumferentially connected to a cam (230), a discharge plate (280) is provided below the arch-breaking fork (270), the side wall of which is inserted with a housing (310), and the side wall of which is welded with an adjusting threaded rod (290); An anti-clogging component (400) is provided below the outer casing (310). The anti-clogging component (400) includes a mounting frame (420). A filter screen is fixedly connected to the inner side wall of the mounting frame (420). A connecting spring (430) is fixedly connected to the top of the mounting frame (420). A wear-resistant plate (421) is fixedly connected to the bottom of the mounting frame (420). A cam (450) is fixedly and slidably connected to the bottom of the wear-resistant plate (421). An outer casing (410) is slidably connected to the side wall of the mounting frame (420). A fan (470) is inserted into the outer side wall of the outer casing (410). A guide plate (412) is fixedly connected to the inner side wall of the outer casing (410).

2. The Raymond mill with high-efficiency discharge according to claim 1, characterized in that, The arch-breaking component (200) includes a support plate (210), a motor (211) is fixedly connected to the top of the support plate (210), a rotating shaft (220) is fixedly connected to the output end of the motor (211), a plurality of cams (230) are sleeved on the outer circumference of the rotating shaft (220), a support is sleeved on the side wall of the rotating shaft (220), and the bottom of the support is integrally formed and connected to the support plate (210).

3. The Raymond mill with high-efficiency discharge according to claim 2, characterized in that, The Raymond mill body (300) is arranged below the feed hopper (100). The Raymond mill body (300) includes a second support plate (311). The side wall of the second support plate (311) is integrally formed and connected to the first outer shell (310). The top of the second support plate (311) is fixedly connected to a second motor (320). The output end of the second motor (320) is fixedly connected to a gear set (330). Multiple transmission shafts are inserted into the side wall of the gear set (330). A pressure roller (340) is sleeved on the outer circumference of the transmission shaft. A control button plate (312) is fixedly connected to the outer side wall of the first outer shell (310).

4. The Raymond mill with high-efficiency discharge according to claim 3, characterized in that, The anti-clogging component (400) includes a discharge hopper (411), the top of which is fixedly connected to the outer shell (410). The outer side wall of the outer shell (410) is integrally formed with a support plate (414). The top of the support plate (414) is fixedly connected to a motor (460). The output end of the motor (460) is fixedly connected to a rotating shaft (440). The outer circumferential wall of the rotating shaft (440) is fitted with multiple cams (450).

5. The Raymond mill with high-efficiency discharge according to claim 4, characterized in that, The side wall of the feeding plate (280) is integrally formed with a baffle (281), the baffle (281) is an arc structure, the outer circumference of the adjusting threaded rod (290) is threaded with a locking nut, the side wall of the connecting seat (250) is integrally formed with a mounting plate, the side wall of the mounting plate is fixedly connected with a tension spring (260), the side wall of the tension spring (260) is fixedly connected with the feeding hopper (100), the outer circumference of the connecting rod is sleeved with a sealing ring (251), and the outer circumference of the sealing ring (251) is bonded to the feeding hopper (100).

6. The Raymond mill with high-efficiency discharge according to claim 5, characterized in that, The sidewalls of the outer casing (310) are provided with multiple adjustment slots, which are arc-shaped. The control button board (312) is electrically connected to the motor (211), the motor (320), the motor (460), and the fan (470).

7. The Raymond mill with high-efficiency discharge according to claim 6, characterized in that, A corrugated tube (431) is sleeved on the outer circumference of the connecting spring (430). The bottom of the corrugated tube (431) is fixedly connected to the mounting frame (420). The top of the corrugated tube (431) and the top of the connecting spring (430) are both fixedly connected to mounting ears (413). The side wall of the mounting ears (413) is fixedly connected to the outer shell (410). A baffle is fixedly connected to the output end of the fan (470).

Citation Information

Patent Citations

  • Raymond mill capable of efficiently discharging materials

    CN219898291U