Impact mill
By designing a concave section and an inner cone structure on the left end face of the classifier, the problem that coarse particles cannot quickly return to the impact disc for further crushing in existing impact mills has been solved, thus improving the crushing efficiency.
Patent Information
- Application Number
- CN202423001414.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In existing impact mills, coarse particles after being classified by the classifier wheel cannot quickly return to the impact disc for further crushing, resulting in low crushing efficiency.
By designing a concave section and an inner cone structure on the left end face of the classifying wheel, the distance between the classifying wheel and the impact disc is shortened, and the inner cone forms a blockage on the right side of the inner wall of the main housing, thus improving the equipment structure and enabling coarse particles to quickly return to the impact disc for further crushing.
It improves the crushing efficiency, ensuring that coarse particles can quickly return to the impact disc for further crushing, thus enhancing the crushing effect.
Smart Images
Figure CN223747712U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to powder equipment technical field, especially, relate to a impact mill. BACKGROUND
[0002] The powder particles of the existing impact mill are crushed, and the crushed powder particles reach the periphery of the classification wheel under the driving of the airflow for classification. The left end face of the classification wheel of the existing impact mill is a flat structure, so the distance between the left end face of the classification wheel and the right end face of the impact disc is large. Moreover, the distance between the coarse particles after classification by the classification wheel and the impact disc is also large, so that the coarse particles after classification by the classification wheel cannot quickly return to the impact disc for re-crushing.
[0003] Therefore, it is necessary to improve the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a kind of impact mill, to solve the technical problem that coarse particle after classification by the classification wheel of existing impact mill cannot quickly return to impact disc for re-crushing.
[0005] The utility model provides an impact mill, including mainframe shell, the inside hollow of mainframe shell, still including feeding pipe, main shaft, lining plate, impact disc, classification wheel, classification machine neck, the feeding pipe is set in the left end face of mainframe shell, the main shaft is set in the axial center of mainframe shell, the impact disc is set in the right end face of main shaft, the lining plate is set in the left side of the inner wall of mainframe shell, the classification wheel is set in the right side of the inner wall of mainframe shell, the classification machine neck is set in the right side of classification wheel, the classification wheel periphery is provided with inner cone, the inner cone is fixed in the right side of the inner wall of mainframe shell, the left end face of classification wheel is provided with inner recess.
[0006] Further, the shape of the inner recess includes a cone.
[0007] Further, the shape of the inner cone includes a cone.
[0008] Further, the axial center line of the main shaft coincides with the axial center line of the impact disc.
[0009] Further, the axial center line of the main shaft coincides with the axial center line of the classification wheel.
[0010] Further, the mainframe shell is arranged above the base.
[0011] Further, the circumferential edge of the impact disc is provided with impact hammer heads.
[0012] Further, the circumferential edge of the impact disc is provided with multiple groups of impact hammer heads.
[0013] The utility model provides a kind of impact mill, with following beneficial effects:
[0014] The utility model provides a kind of impact mill by improving equipment structure, the left end of classification wheel forms inner recess, shorten the distance of classification wheel and impact disc right end surface, inner taper is formed in the right side of the inner wall of main machine shell and blocks, shorten the distance of coarse particle to return to impact disc again, pass through the cooperation of classification wheel and inner taper so that coarse particle after classification by classification wheel can return to impact disc and be smashed again faster, it is favorable to improve the efficiency of comminution. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be simply introduced below, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope. For ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without creative labor.
[0016] Among them:
[0017] Figure 1 It is the overhead structure schematic diagram of impact mill;
[0018] Figure 2 It is the main machine transverse section structure schematic diagram of impact mill;
[0019] Reference signs:
[0020] 1 feeding pipe;2 main machine shaft;3 lining plate;4 impact disc;5 classification wheel;6 inner recess;7 classification machine neck;8 main machine shell;9 inner taper. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme in the utility model will be clearly and completely described below in conjunction with the drawings in the utility model, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by skilled person in the art without creative labor belong to the scope of the utility model protection.
[0022] The utility model will be further described in detail in conjunction with the drawings.
[0023] The pulverized powder particles are classified by the periphery of the classifier wheel driven by the airflow. The left end face of the classifier wheel of the existing impact mill is flat, which makes the distance between the left end face of the classifier wheel and the right end face of the impact disc larger. The coarse particles classified by the classifier wheel return to the impact disc again at a larger distance, which causes the coarse particles classified by the classifier wheel to return to the impact disc for re-pulverization more slowly.
[0024] Referring to Figure 1 、 Figure 2 The improved impact mill includes a main housing 8, which is hollow inside. The improved impact mill also includes a feeding pipe 1, a main shaft 2, a lining plate 3, an impact disc 4, a classifier wheel 5, and a classifier neck 7. The feeding pipe 1 is arranged at the left end face of the main housing 8. The main shaft 2 is arranged at the axial center of the main housing 8. The impact disc 4 is arranged at the right end face of the main shaft 2. The lining plate 3 is arranged at the left side of the inner wall of the main housing 8. The classifier wheel 5 is arranged at the right side of the inner wall of the main housing 8. The classifier neck 7 is arranged at the right side of the classifier wheel 5. An inner cone 9 is arranged at the periphery of the classifier wheel 5. The inner cone 9 is fixed to the right side of the inner wall of the main housing 8. An inner recess 6 is arranged at the left end face of the classifier wheel 5. During operation, the powder raw material particles enter the main housing 8 from the feeding pipe. The impact disc rotates at a high speed. The powder particles impact, shear, and pulverize the impact disc rotating at a high speed and the lining plate. The pulverized powder particles reach the periphery of the classifier wheel driven by the airflow. Because the classifier wheel rotates at a high speed, centrifugal force is generated. The centrifugal force of the fine powder particles is small, which causes the fine powder particles to be carried by the airflow into the classifier wheel and discharged through the classifier neck. The coarse particles are thrown to the inner wall of the main housing under the action of the centrifugal force of the classifier wheel. The impact disc rotates at a high speed to form a negative pressure. The coarse particles reaching the inner wall are sucked into the impact disc and the lining plate under the action of the negative pressure to impact and shear again and pulverize. The pulverized powder particles reach the periphery of the classifier wheel again to be classified driven by the airflow. The structure, position, and connection relationship of the classifier wheel and the inner cone are beneficial to the coarse particles to return to the impact disc more quickly. The improved equipment structure is beneficial to the pulverization efficiency. The left end of the classifier wheel forms an inner recess, which makes the left end face of the classifier wheel extend to the right end face of the impact disc. The distance between the classifier wheel and the right end face of the impact disc is shortened. The inner cone forms a block at the right side of the inner wall of the main housing, which reduces the rotation path of the coarse particles and shortens the distance of the coarse particles to return to the impact disc. The coarse particles flow toward the impact disc. The cooperation of the classifier wheel and the inner cone makes the coarse particles classified by the classifier wheel return to the impact disc for re-pulverization more quickly, which is beneficial to the pulverization efficiency.
[0025] In one embodiment, the shape of the inner recess 6 includes a conical body. The inner recess of the conical body makes the left end face of the classifier wheel extend to the right end face of the impact disc.
[0026] In one embodiment, the shape of the inner cone 9 comprises a circular cone, and the inner cone section of the circular cone forms a slope shape, and the inner cone is formed on the right side of the inner wall of the main shell to form a barrier.
[0027] In one embodiment, the axial center line of the main shaft 2 coincides with the axial center line of the impact disc 4, and the corresponding arrangement of the main shaft and the impact disc is more conducive to uniform distribution of airflow and rotation of coarse particles.
[0028] In one embodiment, the axial center line of the main shaft 2 coincides with the axial center line of the classification wheel 5, and the corresponding arrangement of the main shaft and the classification wheel is more conducive to uniform distribution of airflow and rotation of coarse particles.
[0029] In one embodiment, the main shell 8 is arranged above the base, as shown in the drawings, and the base is conducive to the fixation of the impact mill and improves stability. Figure 2
[0030] In one embodiment, the circumferential edge of the impact disc 4 is provided with impact hammer heads, and the arrangement of the impact hammer heads on the circumferential edge is conducive to increasing the linear velocity of the impact hammer heads.
[0031] In one embodiment, the circumferential edge of the impact disc 4 is provided with a plurality of groups of impact hammer heads, and the plurality of groups of impact hammer heads can enhance the crushing effect.
[0032] In addition, power equipment such as motors can provide power for rotating parts such as the main shaft and the classification wheel.
[0033] In the description of the embodiments of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as a limitation on the embodiments of the utility model. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0034] In the description of the embodiments of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.
[0035] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0036] In the description of the present application, the description of the terms "one embodiment", "an embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.
[0037] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical scheme of the present application, but not to limit it; the above embodiments are only used to help understand the method of the present application and its core idea, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An impact mill comprising a main housing, the main housing being hollow inside, characterized in that, It also includes a feeding pipe, a main shaft, a lining plate, an impact disc, a grading wheel, a grading machine neck, the feeding pipe is arranged at the left end face of the main shell, the main shaft is arranged at the axial center of the main shell, the impact disc is arranged at the right end face of the main shaft, the lining plate is arranged at the left side of the inner wall of the main shell, the grading wheel is arranged at the right side of the inner wall of the main shell, the grading machine neck is arranged at the right side of the grading wheel, the grading wheel is provided with an inner taper at the periphery, the inner taper is fixed at the right side of the inner wall of the main shell, and the left end face of the grading wheel is provided with an inner recess.
2. An impact mill according to claim 1, characterized in that The shape of the inner recess includes a cone.
3. An impact mill according to claim 1, characterized in that The shape of the inner taper includes a cone.
4. An impact mill according to claim 1, characterized in that The axial center line of the main shaft coincides with the axial center line of the impact disc.
5. An impact mill according to claim 1, characterized in that The axial center line of the main shaft coincides with the axial center line of the grading wheel.
6. An impact mill according to claim 1, characterized in that The main shell is arranged above the base.
7. An impact mill according to claim 1, characterized in that The circumferential edge of the impact disc is provided with impact hammer heads.
8. An impact mill according to claim 7, characterized in that The circumferential edge of the impact disc is provided with multiple groups of impact hammer heads.