Conical mill

Abstract

The utility model relates to Raymond mill technical field, concretely relates to a conical flour mill, including mill roller and mill ring, the swing arm of mill roller is movably connected with plum blossom frame, the mill roller is inverted conical structure, the oblique plane of mill ring's extension mill surface A is set to the mill roller, still include spring pressurization device, spring pressurization device includes the pressing plate and spring, the pressing plate is connected with plum blossom frame, the spring is arranged between the pressing plate and swing arm, the utility model's extension mill surface A adopts the oblique plane setting not only can increase the extension mill surface, and the grinding force F not only has centrifugal force F1, still has upward component force F2, and this component force makes material to stay longer in the grinding surface, lets the grinding material fully roll and press, grinds, promotes the crushing efficiency, and the spring pressurization device of additional installation can reduce the vibration, makes the system more flexible.

Description

Technical Field

[0001] This utility model relates to the field of Raymond mill technology, specifically to a conical grinding mill. Background Technology

[0002] Raymond mill, or simply Raymond mill, is a high-efficiency suspended roller grinding equipment. It primarily utilizes the centrifugal force generated by the rotation of the grinding rollers around a vertical central axis to compress and grind the material between the grinding ring and the grinding rollers. It is widely used in the fine powder processing of non-metallic minerals, chemicals, and building materials. In traditional Raymond mills, the grinding surface A of the grinding rollers and grinding ring is approximately perpendicular, relying solely on the centrifugal force of the rollers for grinding. This results in insufficient rolling and grinding of the abrasive material, leading to low pulverization efficiency. Utility Model Content

[0003] This invention provides a conical grinding mill to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A conical grinding mill includes a grinding roller and a grinding ring, wherein the swing arm of the grinding roller is movably connected to a perforated frame; the grinding roller has an inverted frustum-shaped structure, and the roving surface A of the grinding ring is set as an inclined surface corresponding to the grinding roller; it also includes a spring pressing device, wherein the spring pressing device includes a pressure plate and a spring, the pressure plate is connected to the perforated frame, and the spring is disposed between the pressure plate and the swing arm.

[0005] Optionally, the spring is a compression spring.

[0006] Optionally, the pressure plate and the perforated frame are connected by an adjusting screw, and the distance between the pressure plate and the perforated frame is adjusted by the adjusting screw, thereby adjusting the clamping force of the compression spring.

[0007] Optionally, the angle between the roving surface A and the axis is 10°~20°.

[0008] Optionally, the angle between the roving surface A and the axis is 15°.

[0009] Optionally, it also includes a grading wheel, wherein the grading wheel blades are 100-150 mm wide.

[0010] Optionally, the grading wheel blades are 120 mm wide.

[0011] Optionally, the cutting angle of the grading wheel blades is 50~60°.

[0012] Optionally, the entry angle of the grading wheel blades is 54°. Optionally, it may also include a grader wheel seal ring, wherein the sealing surface of the grader wheel seal ring has a conical structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The scouring surface A of this utility model is set with an inclined surface, which not only increases the scouring surface, but also the grinding force F has not only centrifugal force F1, but also an upward component force F2. This component force makes the material stay on the grinding surface for a longer time, allowing the abrasive to be fully rolled and ground, thus improving the crushing efficiency.

[0014] 2. This utility model incorporates a spring pressure device in conjunction with the inverted frustum-shaped grinding roller. By changing the length of the adjusting screw, the spring's clamping force can be adjusted, thereby regulating the grinding force. Furthermore, the addition of this spring pressure device reduces vibration and makes the system more flexible. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the assembly structure of the grinding ring, grinding roller and plum blossom frame of this utility model; Figure 2 This is a schematic diagram of the structure of the grading wheel of this utility model; Figure 3 This is a structural schematic diagram of the graded wheel sealing ring assembly of this utility model. Detailed Implementation

[0017] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "inner", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0020] A conical grinding mill, such as Figure 1 As shown, the machine body 1 is equipped with a grinding roller 3 and a grinding ring 2. The swing arm of the grinding roller 3 is movably connected to the plum blossom frame 4. The connection method can adopt the existing connection method. In this utility model, the grinding roller 3 has an inverted frustum-shaped structure, and the scouring surface A of the grinding ring is set as an inclined surface corresponding to the grinding roller. The angle between the scouring surface A and the axis is 10°~20°, preferably 15°. The advantages of this design are: a) it increases the scouring surface; b) the grinding force F not only has centrifugal force F1, but also an upward component force F2. This component force makes the material stay on the grinding surface for a longer time, allowing the abrasive to be fully rolled and ground, thereby promoting higher crushing efficiency. In this embodiment, a spring pressing device is also added. The spring pressing device includes a pressure plate 6 and a spring. One side of the pressure plate 6 is connected to the perforated frame 4 via an adjusting screw 5. The spring is disposed between the pressure plate 6 and the swing arm. The distance between the pressure plate and the perforated frame is adjusted by the adjusting screw, thereby adjusting the clamping force of the compression spring. The spring is preferably a compression spring 7. In this embodiment, three compression springs and three adjusting screws can be optionally provided. The compression spring 7 is compressed by 60 mm, and each grinding roller can generate a pressure of 7500N. The advantage of this structure is that it can reduce the vibration of the grinding roller and make the entire system more flexible.

[0021] In this embodiment, the grading wheel 8 is further improved as follows: Figure 2 As shown, the traditional classifier blade 9 is 60mm wide and has a cutting angle of 15°, while the classifier blade 9 of the classifier described in this application is 100~150mm wide, preferably 120mm; at the same time, the cutting angle of the classifier blade 9 can be selected from 50~60°, preferably 54°. Using the above technical solution, finer powders can be separated more easily.

[0022] Traditional stager wheel seals use a right-angled face structure. However, this structure results in issues on the stager wheel sealing surfaces A and B, where only the clearance on surface B can be adjusted, not the clearance on surface A. This leads to roughness issues during production. Therefore, the stager wheel seal of this application adopts the following structure: Figure 3As shown, the sealing surface 10 of the grading wheel sealing ring 10 has a conical structure. During use, the gap between sealing surfaces A and B can be adjusted simultaneously by tightening the outer bolt 11 and the inner bolt 12, thereby effectively ensuring the fineness of the powder.

Claims

1. A conical grinding mill, comprising a grinding roller and a grinding ring, wherein the swing arm of the grinding roller is movably connected to a perforated frame; characterized in that: The grinding roller has an inverted frustum-shaped structure, and the scouring surface A of the grinding ring is set as an inclined surface corresponding to the grinding roller; it also includes a spring pressing device, which includes a pressure plate and a spring. The pressure plate is connected to the plum blossom frame, and the spring is arranged between the pressure plate and the swing arm.

2. The conical grinding mill according to claim 1, characterized in that: The spring is a compression spring.

3. A conical grinding mill according to claim 2, characterized in that: The pressure plate and the plum blossom frame are connected by an adjusting screw. The distance between the pressure plate and the plum blossom frame can be adjusted by the adjusting screw, thereby adjusting the clamping force of the compression spring.

4. A conical grinding mill according to claim 1, characterized in that: The angle between the roving surface A and the axis is 10°~20°.

5. A conical grinding mill according to claim 4, characterized in that: The angle between the serrated surface A and the axis is 15°.

6. A conical grinding mill according to claim 1, characterized in that: It also includes a grading wheel, wherein the grading wheel blades are 100-150 mm wide.

7. A conical grinding mill according to claim 6, characterized in that: The width of the grader blade is 120mm.

8. A conical grinding mill according to claim 1, characterized in that: It also includes a grading wheel, wherein the grading wheel blades have an entry angle of 50~60°.

9. A conical grinding mill according to claim 8, characterized in that: The entry angle of the grader blades is 54°.

10. A conical grinding mill according to claim 1, characterized in that: It also includes a grader wheel seal ring, the sealing surface of which has a conical structure.

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