Graded crushing device for high-purity carbon powder
The high-purity carbon powder grading and pulverizing device, designed with a reverse-drive central cylinder, shaft, and spiral blades, achieves multi-stage circulating pulverization, solving the problem of incomplete pulverization in traditional devices and improving pulverization efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional crushing equipment still leaves some raw materials incompletely crushed after one crushing, resulting in substandard particle size and affecting subsequent production.
The device employs a reverse-drive central cylinder and central shaft, combined with a spiral blade design, to achieve multi-stage and cyclic crushing of materials. Materials that meet the particle size requirements are screened out through a filter, while materials that do not meet the requirements are recycled and crushed again.
It improved the crushing efficiency and quality, ensured that the material particle size met the standards, and enhanced the production quality of high-purity carbon powder.
Smart Images
Figure CN224142419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon processing technology, specifically to a high-purity carbon powder grading and pulverizing device. Background Technology
[0002] Crushing is a crucial processing step in the production of high-purity toner. It efficiently breaks down raw materials, reducing the volume and particle uniformity of individual particles, thus laying a solid foundation for further grinding and playing a vital role in improving the overall quality of high-purity toner products. Currently, traditional raw material crushing devices typically consist of two crushing rollers. Material passes between the rollers and exits directly from the discharge port. However, due to variations in raw material characteristics or factors such as material falling off the edges of the rollers, some raw materials may still be insufficiently crushed after the first crushing, resulting in substandard particle sizes, which is detrimental to subsequent production. Summary of the Invention
[0003] The purpose of this invention is to provide a high-purity carbon powder grading and pulverizing device that can improve pulverizing efficiency and achieve cyclic pulverization.
[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: a high-purity carbon powder grading and pulverizing device, including a base frame and a housing mounted on the base frame; a ring-shaped discharge port is provided at the bottom edge of the housing, and a filter screen is provided inside the discharge port; a feed hopper communicating with the interior of the housing is provided at the lower part of one side of the housing.
[0005] The central cylinder is installed inside the housing, and the lower end of the central cylinder is connected to the first reduction motor located at the bottom of the housing; the inner sidewall of the central cylinder is formed with a number of crushing conical surfaces, and the slopes of two adjacent crushing conical surfaces are opposite; the lower sidewall of the central cylinder is provided with side holes.
[0006] A vertical central shaft is provided in the center of the housing. The upper end of the central shaft is connected to a second reduction motor located at the top of the housing. Several crushing cones are provided on the central shaft corresponding to the crushing cone surface.
[0007] The outer wall of the central cylinder is provided with helical blades that extend vertically around the central cylinder.
[0008] Preferably, the inner wall of the central cylinder has at least three crushing conical surfaces.
[0009] Preferably, the upper end face of the central cylinder is an inwardly inclined downward slope.
[0010] Preferably, an annular material collection trough is provided at the bottom of the casing opposite to the discharge port, and a discharge hopper is provided on one side of the material collection trough.
[0011] The beneficial effects of this invention are mainly reflected in its ability to quickly achieve multi-stage crushing of materials and to perform cyclic crushing, thereby improving product quality. Specifically, during operation, materials are fed into the machine casing through the feed hopper. The first and second reduction motors drive the central cylinder and central shaft to rotate in opposite directions, respectively. The material entering from the feed hopper is lifted to the upper end of the central cylinder by the spiral blades and enters the central cylinder. It is repeatedly crushed and ground through the crushing cone surface and crushing disc, and finally discharged from the side hole and re-enters the lower part of the machine casing. Because the first and second reduction motors drive in opposite directions, the crushing speed is increased, ensuring crushing efficiency. Simultaneously, multi-stage crushing ensures crushing quality. Furthermore, even after one crushing cycle, insufficiently crushed material cannot pass through the filter screen and accumulates at the lower part of the machine casing, where it can be lifted back to the upper end of the central cylinder by the spiral blades and re-enter the crushing cycle. Material meeting the particle size requirements passes through the filter screen and is discharged from the outlet. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0013] like Figure 1 As shown, this utility model is a high-purity carbon powder grading and pulverizing device, which can perform primary pulverization on materials used for the production of high-purity carbon powder after carbonization treatment, so as to facilitate subsequent sand milling or other subsequent processing.
[0014] like Figure 1 As shown, this utility model includes a base frame 1 and a housing 2 mounted on the base frame 1. The housing 2 has a cylindrical design. It adopts a bottom-feed design, which reduces the difficulty of feeding and eliminates the need for high-level lifting. A feeding hopper 5 communicating with the interior of the housing 2 is provided on the lower part of one side of the housing 2. A ring-shaped discharge port 3 is provided at the bottom edge of the housing 2. A filter screen 4 is provided inside the discharge port 3. The filter screen 4 is generally detachable to facilitate adjustment of the filtration size as needed. There are many specific detachable methods, such as bolt connection, snap-fit, etc., which will not be described in detail in this utility model.
[0015] The central cylinder 6 is disposed inside the housing 2 of this invention. The lower end of the central cylinder 6 is connected to a first reduction motor 7 located at the bottom of the housing 2 and is driven by the first reduction motor 7. The inner sidewall of the central cylinder 6 forms a plurality of crushing conical surfaces 8, generally at least three crushing conical surfaces 8 are provided, and the slopes of two adjacent crushing conical surfaces 8 are opposite, alternating between outward downward slope and outward upward slope. The lower sidewall of the central cylinder 6 is provided with side holes 9 to serve as channels for the crushed material to be returned to the bottom of the housing 2.
[0016] like Figure 1 As shown, a vertical central shaft 10 is disposed at the center of the housing 2. The upper end of the central shaft 10 is connected to a second reduction motor 11 located at the top of the housing 2 and is driven by the second reduction motor 11. Several crushing cones 12 are disposed on the central shaft 10 corresponding to the crushing cone surface 8. The crushing cones 12 and the crushing cone surface 8 together constitute the crushing body. The material passes through the two, and as the two rotate in opposite directions, the material is crushed and discharged downwards.
[0017] Since this utility model adopts a bottom feeding design, the outer wall of the central cylinder 6 is provided with a spiral blade 13 extending vertically around the central cylinder 6, which serves as both a feeding and lifting component and a pulverizing and circulating lifting component.
[0018] In operation, material is fed into the housing 2 through the feed hopper 5. The first reduction motor 7 and the second reduction motor 11 drive the central cylinder 6 and the central shaft 10 to rotate in opposite directions, respectively. The material entering from the feed hopper 5 is lifted to the upper end of the central cylinder 6 by the screw 13 and enters the central cylinder 6. During the process of passing through the crushing cone surface 8 and the crushing cone disk 12, it is repeatedly crushed and crushed, and finally discharged from the side hole 9 and re-enters the lower part of the housing 2. Because the first reduction motor 7 and the second reduction motor 11 drive in opposite directions, the crushing speed can be increased, ensuring crushing efficiency. At the same time, the quality of crushing can be guaranteed through multi-stage crushing. In addition, even after one crushing cycle, the material that is not crushed thoroughly cannot pass through the filter screen 4 and accumulates in the lower part of the housing 2. It can be lifted back to the upper end of the central cylinder 6 by the screw blades 13 and enter the crushing cycle again. In order to further ensure that the material lifted to the upper end can stably enter the central cylinder 6, the upper end surface of the central cylinder 6 of this invention is an inwardly inclined downward slope. After circulating crushing, the material with the required particle size passes through the filter screen 4 and is discharged from the outlet 3.
[0019] Based on this, in order to achieve stable collection of the material discharged from the discharge port 3, an annular collection trough 14 is provided at the bottom of the casing 2 of this utility model, opposite to the discharge port 3. A discharge hopper 15 is provided on one side of the collection trough 14. The material collected by the collection trough 14 is finally discharged from the discharge hopper 15 for later use or enters the subsequent process.
Claims
1. A high-purity carbon powder classifying and pulverizing device, comprising a base frame (1) and a casing (2) arranged on the base frame (1); characterized in that: The bottom of the housing (2) near the edge is provided with a ring-shaped discharge port (3), and a filter screen (4) is provided inside the discharge port (3); a feed hopper (5) communicating with the inside of the housing (2) is provided on the lower part of one side of the housing (2); The central cylinder (6) is provided inside the housing (2), and the lower end of the central cylinder (6) is connected to the first reduction motor (7) located at the bottom of the housing (2); the inner sidewall of the central cylinder (6) is formed with a plurality of crushing cone surfaces (8), and the slopes of two adjacent crushing cone surfaces (8) are opposite; a side hole (9) is provided on the sidewall of the lower part of the central cylinder (6); A vertical central shaft (10) is provided in the center of the housing (2). The upper end of the central shaft (10) is connected to the second reduction motor (11) located at the top of the housing (2). Several crushing cones (12) are provided on the central shaft (10) corresponding to the crushing cone surface (8). The outer wall of the central cylinder (6) is provided with helical blades (13) extending vertically around the central cylinder (6).
2. The high-purity carbon powder classifying and pulverizing apparatus according to claim 1, characterized by: The inner wall of the central cylinder (6) has at least three crushing conical surfaces (8).
3. The high-purity carbon powder classifying and pulverizing apparatus according to claim 2, characterized by: The upper end face of the central cylinder (6) is an inclined surface that extends inward and downward.
4. The high-purity carbon powder classifying and pulverizing apparatus according to claim 3, characterized by: An annular material collection trough (14) is provided at the bottom of the casing (2) opposite to the discharge port (3), and a discharge hopper (15) is provided on one side of the material collection trough (14).