Vertical shaft screening hammer crusher
By arranging screening holes on the inner cylinder wall of the vertical shaft hammer crusher, the materials can be stratified and screened in advance, which solves the problem of excessive crushing of materials and uneven particle size, and improves the production capacity and the quality of crushed materials.
Patent Information
- Application Number
- CN202421073739.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-16
AI Technical Summary
During the crushing process of the existing vertical shaft hammer crusher, the material is over-crumbled, resulting in uneven particle size, increasing energy consumption, and requiring subsequent screening, affecting output.
Design a vertical shaft screening hammer crusher. By setting screening holes on the inner cylinder wall, the materials enter the fine material screening cavity through the screening holes after crushing, thereby achieving stratified screening in advance and avoiding excessive crushing.
It effectively avoids excessive crushing of materials, increases production capacity, saves energy consumption, improves the uniformity of particle size of crushed materials, and meets production quality requirements.
Smart Images
Figure CN222358560U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crushers, in particular to a vertical shaft screening hammer crusher. Background Art
[0002] Hammer crusher is a kind of equipment that crushes materials in the form of impact. Hammer crusher is suitable for medium and fine crushing of materials with medium hardness, such as limestone, slag, coke, coal, etc. in cement, chemical, electric power, metallurgy and other industrial sectors.
[0003] In the production process of the existing vertical shaft hammer crusher, the material enters the crushing chamber from the top, is impacted and crushed by the multi-layer hammer heads in the crushing chamber, and then discharged from the bottom of the equipment. This requires all materials to be impacted and crushed by the multi-layer hammer heads, which will cause the materials with originally smaller particle sizes to be over-crushed under the impact crushing of the multi-layer hammer heads, and the particle size becomes smaller, which increases the energy consumption of the crusher on the one hand; on the other hand, the crushed materials of different particle sizes are all discharged from the same outlet, resulting in poor uniformity of the particle size of the crushed materials, requiring subsequent screening work, and the crushed materials of larger and smaller particle sizes cannot meet the requirements, thereby affecting the output. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a vertical shaft screening hammer crusher.
[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a vertical shaft screening hammer crusher, comprising an inner cylinder, a feeding port is arranged at the top of the inner cylinder, a coarse material discharge hopper is arranged at the bottom, a rotor body is arranged in the inner cylinder, the rotor body comprises a rotating shaft arranged vertically in the middle of the inner cylinder, a plurality of groups of crushing components are arranged vertically at intervals on the rotating shaft, a plurality of mesh holes are arranged at intervals on the cylinder wall of the inner cylinder, a lining plate is detachably arranged on the inner side of the cylinder wall of the inner cylinder, a plurality of screening holes are opened on the lining plate corresponding to the mesh holes, the aperture of the screening holes is smaller than the aperture of the mesh holes, an outer cylinder is also arranged outside the inner cylinder, a fine material discharge hopper arranged around the coarse material discharge hopper is arranged at the bottom of the outer cylinder, and a driving component for driving the rotor body to rotate is arranged above the inner cylinder.
[0006] By adopting the above technical scheme, an inner cylinder and an outer cylinder are arranged, and a plurality of screening holes are opened on the lining plate of the inner cylinder wall. In this way, after the material enters the crushing chamber of the inner cylinder through the feed port, it is crushed by the high-speed rotating crushing component. The material that meets the target particle size will enter the fine material screening chamber between the inner cylinder and the outer cylinder through the screening holes, and then be discharged from the fine material discharge hopper. The crushed material with a larger particle size cannot pass through the screening holes and continues to fall and is crushed by the lower crushing component. In this way, the material that meets the target particle size can be layered and screened in advance through the screening holes and enter the screening chamber, thereby avoiding excessive crushing, improving production capacity, and saving energy consumption.
[0007] Furthermore, the crushing assembly includes a plurality of hammer discs circumferentially arranged on the shaft body of the rotating shaft, and one end of the hammer disc away from the rotating shaft is fixedly connected to a crushing hammer head through bolts or pins.
[0008] By adopting the above technical solution, a hammer plate is provided, and the crushing hammer head is fixedly connected to the hammer plate by bolts or pins, so that the disassembly and replacement of the crushing hammer head is convenient.
[0009] Furthermore, the upper end surface of the crushing hammer head is an arc surface whose end adjacent to the rotating shaft is higher than the end adjacent to the inner cylinder wall and whose opening faces downward.
[0010] By adopting the above technical solution, the upper end surface of the crushing hammer head is set to be an arc surface which is higher than the end of the inner cylinder wall near the rotating shaft and has an opening facing downward, that is, the material-facing surface of the crushing hammer head is set to be an inclined arc surface, which can not only buffer the impact force of the material on the crushing hammer head, but also play a role in diversion.
[0011] Furthermore, the screening hole is in the shape of a truncated cone with a small inner diameter and a large outer diameter.
[0012] By adopting the above technical solution, the screening hole is set to be a truncated cone with a small inner diameter and a large outer diameter, which can effectively avoid material blockage and reduce energy consumption.
[0013] Furthermore, the driving assembly includes a bracket arranged on the top of the inner cylinder, a permanent magnet motor is arranged on the bracket, and an output shaft of the permanent magnet motor is downward and connected to the rotating shaft through a coupling.
[0014] By adopting the above technical solution, a bracket and a permanent magnet motor are provided, and the permanent magnet motor is used to directly drive the rotating shaft to rotate, thereby further avoiding energy loss.
[0015] Furthermore, a coarse material discharging pipe is provided at the bottom of the coarse material discharging hopper, and a fine material discharging pipe is provided at the bottom of the fine material discharging hopper.
[0016] By adopting the above technical solution, a coarse material discharge pipe and a fine material discharge pipe are provided, so as to facilitate guiding the coarse material and the fine material to different collection places.
[0017] In summary, the utility model has the following beneficial effects:
[0018] 1. In the present application, an inner cylinder and an outer cylinder are provided, and a plurality of screening holes are opened on the lining plate of the inner cylinder wall. In this way, after the material enters the crushing chamber of the inner cylinder through the feed port, it is crushed under the action of the crushing assembly. The crushed material meeting the target particle size will enter the screening chamber of the inner cylinder and the outer cylinder through the screening holes, and then be discharged from the fine material hopper. The crushed material with a larger particle size cannot pass through the screening holes, and continues to fall and is crushed by the lower crushing assembly. In this way, the material meeting the target particle size can be layered and screened in advance through the screening holes and enter the screening chamber, thereby avoiding excessive crushing, improving production capacity and saving energy consumption.
[0019] 2. In the present application, by setting the upper end surface of the crushing hammer head to be an arc surface that is higher than the end of the inner cylinder wall near the rotating shaft and has an opening facing downward, the material-facing surface of the crushing hammer head is set to an inclined arc surface, which not only can buffer the impact force of the material on the crushing hammer head, but also plays a role in diversion.
[0020] 3. In the present application, a liner is removably arranged on the wall of the inner cylinder, so that the size of the screening hole can be changed by replacing the liner, so as to meet the crushing requirements of different particle sizes; the screening hole is set to a truncated cone with a small inner diameter and a large outer diameter, which can effectively avoid material blockage and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic cross-sectional structure diagram of an embodiment of the utility model;
[0022] Figure 2 yes Figure 1 A magnified schematic diagram of part B;
[0023] Figure 3 yes Figure 1 A-axis sectional view;
[0024] Figure 4 yes Figure 3 An enlarged schematic diagram of part C of FIG.
[0025] Figure 5 It is a schematic diagram of the overall structure of the rotor body of the utility model embodiment.
[0026] In the figure: 10, inner cylinder; 11, feed inlet; 12, coarse material discharge hopper; 13, lining plate; 14, screening hole; 15, coarse material discharge pipe; 20, rotor body; 21, rotating shaft; 22, crushing assembly; 221, hammer disc; 222, crushing hammer head; 30, outer cylinder; 31, fine material discharge hopper; 32, fine material discharge pipe; 40, driving assembly; 41, bracket; 42, permanent magnet motor. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0028] like Figure 1-4 As shown, the embodiment of the present application discloses a vertical shaft screening hammer crusher, including an inner cylinder 10 and an outer cylinder 30. The inner cylinder 10 is cylindrical as a whole, and a feed port 11 is provided at the top for feeding, and a coarse material discharge hopper 12 is provided at the bottom. A coarse material discharge pipe 15 is provided at the bottom of the coarse material discharge hopper 12 for discharging. A rotor body 20 is provided in the inner cylinder 10, and the rotor body 20 includes a rotating shaft 21 which is vertically rotated and arranged in the middle of the inner cylinder 10. A plurality of groups of crushing assemblies 22 are arranged vertically at intervals on the rotating shaft 21, so as to form a crushing chamber in the inner cylinder 10. A driving assembly 40 for driving the rotor body 20 to rotate is provided above the inner cylinder 10, and the driving assembly 40 includes a bracket 41 arranged at the top of the inner cylinder 10, and a permanent magnet motor 42 is provided on the bracket 41. The output shaft of the permanent magnet motor 42 is downward and connected to the rotating shaft 21 through a coupling. The method of using the permanent magnet motor 42 to directly drive the rotating shaft 21 simplifies the structure of the equipment and saves installation space. In terms of energy, the permanent magnet motor 42 saves energy consumption and reduces the operating cost of the equipment.
[0029] The crushing assembly 22 includes a plurality of hammer discs 221 arranged circumferentially on the shaft body of the rotating shaft 21. The end of the hammer disc 221 away from the rotating shaft 21 is fixedly connected with a crushing hammer head 222 by bolts or pins, so that the crushing hammer head 222 is easy to disassemble and replace. The upper end surface of the crushing hammer head 222 is an arc surface that is higher than the end of the inner cylinder 10 wall near the rotating shaft 21 and the opening is facing downward, that is, the material-facing surface of the crushing hammer head 222 is set to an inclined arc surface, which can not only buffer the impact force of the material on the hammer head, but also play a role in diversion.
[0030] The inner cylinder 10 has a plurality of mesh holes 101 arranged at intervals on its wall, and a lining plate 13 is detachably arranged on the inner side of the wall, and the lining plate 13 fits the inner cylinder 10 wall during installation. Screening holes 14 are arranged on the lining plate 13 corresponding to the mesh holes 101, and the aperture of the screening holes 14 is smaller than the aperture of the mesh holes 101, so that the crushed materials that can pass through the screening holes 14 can also pass through the mesh holes 101. The lining plate 13 can be set in multiple ways according to the aperture of the screening holes 14. When specifically set, the number of screening holes 14 is consistent with the number of mesh holes 101 and the hole core spacing is also consistent, so that the screening holes 14 correspond to the mesh holes 101 one by one, so that the lining plate 13 corresponding to the aperture of the screening holes 14 can be selected according to the size of the required material particle size, thereby satisfying the adjustable requirements of multiple particle sizes. When specifically set, the screening holes 14 are generally truncated cone-shaped with a small inner port diameter and a large outer port diameter. In this way, the crushed fine material will not be blocked in the screening hole 14 when being screened through the screening hole 14, thereby effectively avoiding the phenomenon of material blockage.
[0031] The outer cylinder 30 is arranged outside the inner cylinder 10, and the cavity between the cylinder wall of the outer cylinder 30 and the cylinder wall of the inner cylinder 10 forms a fine material screening cavity. A fine material discharge hopper 31 is arranged at the bottom of the outer cylinder 30 and is arranged outside the coarse material discharge hopper 12. A fine material discharge pipe 32 is arranged at the bottom of the fine material discharge hopper 31 to facilitate the discharge of fine materials.
[0032] The operating principle of a vertical shaft screening hammer crusher in this embodiment is as follows: the material enters the crushing chamber of the inner cylinder 10 from the feed inlet 11, and the crushing hammer head 222 rotates at high speed with the rotating shaft 21. The material falls on the material-facing surface of the crushing hammer head 222 and is crushed by the crushing hammer head 222. The crushed materials with smaller particle sizes are thrown onto the wall of the inner cylinder 10 and enter the fine material screening chamber from the screening holes 14, and then are discharged from the fine material discharge hopper 31 and the fine material discharge pipe 32. The crushed materials with larger particle sizes cannot pass through the screening holes 14, and will continue to fall in the cylinder chamber of the inner cylinder 10 and fall on the material-facing surface of the crushing hammer head 222 of the next layer. It is crushed again, and the crushed materials that meet the target particle size are discharged through the screening hole 14, while the larger particles continue to fall until they reach the bottom layer. The crushed materials whose particle size is still larger than the aperture of the screening hole 14 and some of the small-sized fine materials mixed together are discharged from the coarse material discharge hopper 12 and the coarse material discharge pipe 15, and the small-sized crushed materials that meet the requirements will be screened out from the screening hole 14 after crushing, and will not be further crushed by the lower crushing hammer 222, thereby greatly reducing the problem of over-crushing, saving energy consumption to a certain extent, and ensuring the uniformity of the particle size of the crushed materials, thereby improving the quality of the crushed materials.
[0033] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A vertical shaft screening hammer crusher, characterized by: The invention comprises an inner cylinder (10), wherein the top of the inner cylinder (10) is provided with a feed inlet (11), and the bottom is provided with a coarse material discharge hopper (12), wherein a rotor body (20) is provided inside the inner cylinder (10), wherein the rotor body (20) comprises a rotating shaft (21) which is arranged vertically in the middle of the inner cylinder (10), wherein a plurality of groups of crushing components (22) are arranged vertically at intervals on the rotating shaft (21), and a plurality of mesh holes (101) are arranged at intervals on the cylinder wall of the inner cylinder (10), wherein the inner cylinder (10) is provided with a plurality of mesh holes (101) which are arranged at intervals on the cylinder wall of the inner cylinder (10). A lining plate (13) is detachably provided on the inner side of the cylinder wall. A plurality of screening holes (14) are provided on the lining plate (13) corresponding to the mesh holes (101). The aperture of the screening holes (14) is smaller than the aperture of the mesh holes (101). An outer cylinder (30) is further provided on the outside of the inner cylinder (10). A fine material discharge hopper (31) is provided at the bottom of the outer cylinder (30) and is arranged outside the coarse material discharge hopper (12). A driving assembly (40) for driving the rotor body (20) to rotate is provided above the inner cylinder (10).
2. A vertical shaft screening hammer crusher according to claim 1, characterized in that: The crushing assembly (22) comprises a plurality of hammer discs (221) circumferentially arranged on the shaft body of the rotating shaft (21); one end of the hammer disc (221) away from the rotating shaft (21) is fixedly connected to a crushing hammer head (222) via a bolt or a pin.
3. A vertical shaft screening hammer crusher according to claim 2, characterized in that: The upper end surface of the crushing hammer head (222) is an arc surface whose end adjacent to the rotating shaft (21) is higher than the end adjacent to the wall of the inner cylinder (10) and whose opening faces downward.
4. A vertical shaft screening hammer crusher according to claim 1, characterized in that: The screening hole (14) is in the shape of a truncated cone with a small inner diameter and a large outer diameter.
5. A vertical shaft screening hammer crusher according to claim 1, characterized in that: The driving assembly (40) comprises a bracket (41) arranged on the top of the inner cylinder (10), a permanent magnet motor (42) being arranged on the bracket (41), and an output shaft of the permanent magnet motor (42) being downwardly directed and connected to the rotating shaft (21) via a coupling.
6. A vertical shaft screening hammer crusher according to claim 1, characterized in that: A coarse material discharge pipe (15) is provided at the bottom of the coarse material discharge hopper (12), and a fine material discharge pipe (32) is provided at the bottom of the fine material discharge hopper (31).