Crushing and screening equipment for ferromolybdenum alloy production

Abstract

The utility model discloses crushing and screening equipment for ferromolybdenum alloy production, which comprises a vertical frame, a chute is arranged on the vertical frame along the inclined direction, a grid screening plate is arranged in the chute along a bottom plate in parallel, a feeding guide groove is arranged at the top of the chute, a material collecting guide groove is arranged at the lower end of the chute, and the grid screening plate is arranged in the chute along the bottom plate. The utility model relates to the technical field of ferro-molybdenum alloy crushing, a chute is arranged at the feeding front end of the jaw crusher, bulk materials enter the jaw crusher through the material collecting guide groove at the lower part for primary crushing, and the bulk materials enter the jaw crusher through the material collecting guide groove at the lower part for secondary crushing. The tailings obtained after primary crushing directly enter the double-roller crusher to be subjected to secondary crushing, the alloy materials obtained after secondary crushing and the alloy materials obtained through primary screening at the chute position further enter the rolling type screening mechanism below to be subjected to classified screening, the structure is compact, the automation degree is high, and the production efficiency is high. And ferromolybdenum alloy blocks with moderate specifications can be obtained through one-time crushing and screening.

Description

Technical Field

[0001] This utility model relates to the field of ferromolybdenum alloy crushing technology, specifically a crushing and screening device for ferromolybdenum alloy production. Background Technology

[0002] In the production process of ferromolybdenum alloys, large pieces of ferromolybdenum alloy need to be crushed. Since the crushed ferromolybdenum alloy pieces vary in size, screening equipment is required to obtain finished ferromolybdenum alloy pieces with uniform particle size. Currently, in the crushing of ferromolybdenum alloy ingots, workers use a forklift to feed all water-quenched ferromolybdenum alloy pieces of various sizes into the crushing equipment. This crushing equipment lacks the function of screening the alloy pieces by size. During crushing, larger alloy pieces are not crushed thoroughly, and some crushed alloy pieces do not meet the particle size requirements and require secondary crushing. Furthermore, the crushing of smaller alloy pieces increases the powder content of the tailings, requiring secondary smelting and increasing production costs. Therefore, this paper addresses these problems through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a crushing and screening device for the production of ferromolybdenum alloys, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a crushing and screening device for ferromolybdenum alloy production, comprising a vertical frame, a chute arranged along an inclined direction on the vertical frame, a grid screening plate arranged parallel to the bottom plate inside the chute, a feed guide chute at the top of the chute, a collection guide chute at the bottom of the chute, a jaw crusher arranged below the collection guide chute, a double-roll crusher arranged at the outlet end of the jaw crusher, a guide hopper arranged at the discharge end of the double-roll crusher, a guide conveyor arranged below the collection hopper at the bottom of the chute bottom plate, the guide conveyor being connected to the guide hopper, a rolling grading screening mechanism arranged at the outlet end of the guide hopper, and multiple intermediate material troughs arranged sequentially below the rolling screening mechanism.

[0005] The aforementioned rolling multi-stage screening mechanism includes a fixed frame, a fixed shaft, a connecting frame, and a columnar cylindrical frame. The fixed frame is located below the guide hopper, the fixed shaft is mounted on the fixed frame along an inclined direction, the connecting frame is welded to the fixed shaft, and the columnar cylindrical frame is welded to the outside of the connecting frame. The outside of the columnar cylindrical frame is covered with three sets of screening perforated plates. The three sets of screening perforated plates are arranged in sections, and the diameter of the screen holes on the screening perforated plates decreases sequentially from high to low. One end of the fixed frame is connected to a rotary drive assembly.

[0006] The aforementioned rotary drive assembly includes a mounting base, a drive motor, a reducer, and a coupling. The mounting base is mounted on a fixed frame, the output end of the drive motor is connected to the input end of the reducer, and the coupling is mounted on the output end of the reducer and connected to a fixed shaft.

[0007] The outlet end of the aforementioned feed hopper is equipped with a vibrating feed assembly, one end of which extends into the column frame.

[0008] The aforementioned vibratory feeding assembly includes a suspension, an elastic support member, a guide chute, and a vibratory motor. The suspension is mounted on a fixed frame and located above a column-shaped cylindrical frame. The elastic support member is mounted on the suspension. The guide chute is mounted on the elastic support member. The vibratory motor is mounted on the lower end face of the guide chute.

[0009] The aforementioned elastic support component includes a support, a compression spring, and a connecting seat. The support is fixed on the suspension, the compression spring is mounted on the support, and the connecting seat is disposed on the compression spring and connected to the guide chute.

[0010] This utility model provides a crushing and screening device for ferromolybdenum alloy production. It has the following advantages: The device features a chute at the feed front of a jaw crusher, with a grid screening plate inside for preliminary screening of the ferromolybdenum alloy blocks. Larger blocks enter the jaw crusher via a lower collection chute for primary crushing. The tailings from the primary crushing directly enter a roller crusher for secondary crushing. The alloy material after secondary crushing, along with the alloy material obtained from the initial screening at the chute, further enters a lower rolling screening mechanism. This rolling screening mechanism grades and screens the alloy material, and powder and block materials are collected separately through an intermediate chute. The device has a compact structure, high automation, and can obtain appropriately sized ferromolybdenum alloy blocks in a single crushing and screening operation. Furthermore, the preliminary screening process separates smaller ferromolybdenum alloy blocks, preventing them from entering the crushing system and reducing the powder content in the tailings. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of a crushing and screening device for producing ferromolybdenum alloys according to the present invention.

[0012] Figure 2 This is a cross-sectional view of the rolling multi-stage screening mechanism described in this utility model.

[0013] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at position a.

[0014] In the diagram: 1. Vertical frame; 2. Chute; 3. Grid screening plate; 4. Feed guide chute; 5. Collecting guide chute; 6. Jaw crusher; 7. Double roll crusher; 8. Guide hopper; 9. Collecting hopper; 10. Intermediate chute; 11. Fixed frame; 12. Fixed shaft; 13. Connecting frame; 14. Column frame; 15. Screening plate; 16. Mounting seat; 17. Drive motor; 18. Reducer; 19. Coupling; 20. Suspension; 21. Guide chute; 22. Vibrating motor; 23. Support; 24. Compression spring; 25. Connecting seat. Detailed Implementation

[0015] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Refer to the appendix of the instruction manual Figure 1-3 As can be seen, this application specifically designs a crushing and screening device for the production of ferromolybdenum alloy. A chute 2 is installed on the upright frame 1 along an inclined direction. A grid screening plate 3 is installed parallel to the bottom plate inside the chute 2. A feed guide chute 4 is installed at the top of the chute 2, and a collection guide chute 5 is installed at the bottom of the chute 2. A jaw crusher 6 is installed below the collection guide chute 5. A double-roll crusher 7 is installed at the outlet end of the jaw crusher 6. A guide hopper 8 is installed at the discharge end of the double-roll crusher 7. A guide conveyor is installed below the bottom plate of the chute 2 via the collection hopper 9. The guide conveyor is connected to the guide hopper 8. A rolling grading screening mechanism is installed at the outlet end of the guide hopper 8. Multiple intermediate material troughs 10 are sequentially arranged below the rolling screening mechanism. The chute 2 is installed at the feed front end of the jaw crusher 6. A grid screening plate 3 is installed to perform preliminary screening of the ferromolybdenum alloy blocks to be crushed. Larger pieces enter the jaw crusher 6 through the lower collection guide chute 5 for primary crushing. The tailings after primary crushing directly enter the double roller crusher 7 for secondary crushing. The alloy material after secondary crushing and the alloy material obtained from the primary screening at the chute 2 further enter the rolling screening mechanism below. The rolling screening mechanism is used to classify and screen the alloy material, and the powder and block materials are collected separately through the intermediate material chute 10. The structure is compact and highly automated. Ferromolybdenum alloy blocks of appropriate size can be obtained in one crushing and screening process. In addition, smaller ferromolybdenum alloy blocks can be separated during the preliminary screening process to prevent these alloy blocks from entering the crushing system and reduce the powder rate in the tailings.

[0017] In specific implementation, as a preferred configuration, the aforementioned rolling multi-stage screening mechanism includes a fixed frame 11, a fixed shaft 12, a connecting frame 13, and a columnar cylindrical frame 14. The fixed frame 11 is located below the guide hopper 8, the fixed shaft 12 is mounted on the fixed frame 11 along an inclined direction, the connecting frame 13 is welded to the fixed shaft 12, and the columnar cylindrical frame 14 is welded to the outside of the connecting frame 13. The outside of the columnar cylindrical frame 14 is covered with three sets of screening perforated plates 15. The three sets of screening perforated plates 15 are arranged in sections, and the screen apertures on the screening perforated plates 15 decrease sequentially from high to low. One end of the fixed frame 11 is connected to a rotary drive assembly, which includes a mounting base 16, a drive motor 17, a reducer 18, and a coupling. 19. Mounting base 16 is set on fixed frame 11. The output end of drive motor 17 is connected to the input end of reducer 18. Coupling 19 is mounted on the output end of reducer 18 and connected to fixed shaft 12. In use, the rotation control of fixed shaft 12 is realized by the cooperation of drive motor 17 and reducer 18. While fixed shaft 12 rotates, it drives the connecting frame 13 and column frame 14 connected to it to rotate synchronously. During the rotation of column frame 14, the alloy fragments that have entered it will roll spirally along screening plate 15. The screening plate 15 is used to screen the alloy blocks, and alloy blocks of different sizes fall into the corresponding intermediate material tank 10.

[0018] In a preferred embodiment, the outlet end of the aforementioned feed hopper 8 is equipped with a vibrating feeding assembly, one end of which extends into the column frame 14. The vibrating feeding assembly includes a suspension 20, an elastic support member, a guide chute 21, and a vibrating motor 22. The suspension 20 is mounted on the fixed frame 11 and located above the column frame 14. The elastic support member is mounted on the suspension 20, the guide chute 21 is mounted on the elastic support member, and the vibrating motor 22 is mounted on the lower end face of the guide chute 21. The elastic support member includes a support 23, a compression spring 24, and a connecting seat 25. The support 23 is fixed to the suspension 20, and the compression spring 24 is mounted on the lower end face of the guide chute 21. The compression spring 24 is mounted on the support 23, and the connecting seat 25 is set on the compression spring 24 and connected to the guide chute 21. In use, the vibration motor 22 is started, and the vibration motor 22 drives the guide chute 21 to maintain a vibrating state under the cooperation of the elastic support component. The alloy fragments collected at the upper guide outlet enter the guide chute 21 under the action of gravity. Under the action of vibration, the alloy fragments enter the rolling multi-stage screening mechanism evenly and continuously. The structure is simple, the reliability is high, and it can effectively buffer the impact force of the alloy fragments during the falling process, reduce the impact force of the alloy fragments on the rolling multi-stage screening mechanism, and reduce the equipment maintenance cost.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crushing and screening apparatus for ferromolybdenum alloy production, comprising a stand, characterized in that, The chute is provided on the stand in an inclined direction, a grid screening plate is provided in the chute in parallel with the bottom plate, a feeding guide groove is provided on the top of the chute, a material collecting guide groove is provided at the lower end of the chute, a jaw crusher is provided at the lower part of the material collecting guide groove, a pair of roller crushers are provided at the outlet end of the jaw crusher, a material guide hopper is provided at the discharge end of the pair of roller crushers, a material guide conveyor is provided at the lower part of the material guide hopper through a material collecting hopper, the material guide conveyor is communicated with the material guide hopper, a rolling type grading and screening mechanism is provided at the outlet end of the material guide hopper, and a plurality of intermediate material grooves are provided at the lower part of the rolling type grading and screening mechanism in sequence.

2. The crushing and screening apparatus for ferromolybdenum alloy production according to claim 1, characterized in that, The rolling type grading and screening mechanism comprises a fixed frame, a fixed shaft, a connecting frame and a column type cylinder frame, the fixed frame is arranged below the material guide hopper, the fixed shaft is arranged on the fixed frame in an inclined direction, the connecting frame is welded on the fixed shaft, the column type cylinder frame is welded on the outer side of the connecting frame, the outer side of the column type cylinder frame is covered with three groups of screening hole plates, the three groups of screening hole plates are arranged in sections and the screening hole diameters on the screening hole plates decrease from high to low in sequence, and one end of the fixed frame is connected with a rotary drive assembly.

3. The crushing and screening apparatus for ferromolybdenum alloy production according to claim 2, characterized in that, The rotary drive assembly comprises a mounting seat, a drive motor, a speed reducer and a shaft coupling, the mounting seat is arranged on the fixed frame, the output end of the drive motor is connected with the input end of the speed reducer, and the shaft coupling is mounted on the output end of the speed reducer and connected with the fixed shaft.

4. The crushing and screening apparatus for ferromolybdenum alloy production according to claim 2, characterized in that, The outlet end of the material guide hopper is provided with a vibrating type feeding assembly, and one end of the vibrating type feeding assembly extends into the column type cylinder frame.

5. The crushing and screening apparatus for ferromolybdenum alloy production according to claim 4, characterized in that, The vibrating type feeding assembly comprises a suspension, an elastic support member, a material guide chute and a vibrating motor, the suspension is arranged on the fixed frame and above the column type cylinder frame, the elastic support member is arranged on the suspension, the material guide chute is arranged on the elastic support member, and the vibrating motor is mounted on the lower end face of the material guide chute.

6. The crushing and screening apparatus for ferromolybdenum alloy production according to claim 5, characterized in that, The elastic support member comprises a support, a compression spring and a connecting seat, the support is fixedly arranged on the suspension, the compression spring is mounted on the support, and the connecting seat is arranged on the compression spring and connected with the material guide chute.

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