Automatic frozen block screening device of stacker-reclaimer

Abstract

The utility model belongs to the technical field of material screening devices, and particularly relates to an automatic frozen block screening device of a stacker-reclaimer, which comprises a hopper receiving plate, a connecting frame and a conveying belt are mounted on one side of the hopper receiving plate, the conveying belt is used for conveying material iron ore, a guide groove is formed in the top end of the connecting frame, and the conveying belt is used for conveying the material iron ore. The material guide groove is positioned right above the conveying belt; the screening assembly is used for screening the frozen blocks, and the screening assembly comprises a mounting plate mounted at the top end of the connecting frame and a material receiving groove formed in the top end of the mounting plate and used for allowing the frozen blocks to fall into; through the arrangement of the screening assembly, frozen blocks can be screened through the screening grate, the situation that the guide groove is blocked and needs to be shut down for cleaning can be prevented, the screening grate and the conveying belt can be protected in a blocking mode, and the situation that the conveying belt is crushed by large frozen blocks can be prevented; and therefore, the service life of the conveying belt is greatly prolonged, and the high efficiency of material taking operation is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening devices, and in particular relates to an automatic screening device for frozen blocks of a stacker and reclaimer. Background Art

[0002] Bucket wheel stacker and reclaimer is a large-scale key equipment widely used in bulk material stacking and reclaiming operations in large and medium-sized storage yards in the fields of metallurgy, electric power, ports, coking, building materials, etc. When the bucket wheel stacker and reclaimer is performing the reclaiming operation, the rotation of the bucket wheel body drives the hopper to reclaim the material. When the hopper runs to the tipping point above the bucket wheel body, the material will flow along the chute in the middle of the bucket wheel body to the head receiving chute of the cantilever belt conveyor, and then the cantilever belt will transport the material away.

[0003] However, existing bucket-wheel stackers lack a frozen block screening mechanism during reclaiming operations. During low winter temperatures, the material on the surface of the ore pile freezes, making it impossible to screen out larger frozen blocks within the receiving chute. This can easily lead to material accumulation within the chute, necessitating machine downtime for cleaning. Furthermore, large frozen blocks can slide down the chute and easily damage the belt, shortening its service life and reducing the efficiency of the reclaiming operation.

[0004] In order to solve the above problems, the present application proposes an automatic screening device for frozen blocks of a stacker / reclaimer. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an automatic screening device for frozen blocks of a stacker / reclaimer, which has the characteristics of not only being able to screen the frozen blocks through the screening grate, but also being able to provide a barrier and protection between the screening grate and the conveyor belt.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An automatic screening device for frozen blocks of a stacker / reclaimer, comprising:

[0008] A hopper receiving plate, a connecting frame and a conveyor belt are installed on one side of the hopper receiving plate, and the conveyor belt is used to transport the materials. A material guide trough is opened at the top of the connecting frame, and the material guide trough is located directly above the conveyor belt;

[0009] The sieve is connected with the collecting box top end and the collecting box top end, and the collecting box bottom end is connected with the collecting box top end.

[0010] As a preferred embodiment of the present invention, an automatic screening device for frozen blocks of a stacker and reclaimer, the support assembly includes two stabilizing frames symmetrically fixed on one side of the connecting frame and a support seat fixed on the bottom of the material receiving plate, and a rotatable rotating column is installed between the two stabilizing frames, one side of the support seat is inserted between the two stabilizing frames and sleeved on the outside of the rotating column, and a power assembly for driving the rotating column to rotate is provided on the connecting frame; through the setting of the support assembly, the material receiving plate and the mounting plate can be flipped, and the frozen blocks dropped from the mounting plate can be dumped to avoid the frozen blocks accumulating on the screening grate.

[0011] As a preferred automatic screening device for frozen blocks of a stacker and reclaimer of the present invention, the power assembly includes a support frame fixed to the bottom of the connecting frame, one end of the rotating column passes through the outside of the stabilizing frame and is sleeved with a connecting arm, a first electro-hydraulic push rod is fixed to the top of the support frame, and one end of the first electro-hydraulic push rod is hinged to a small arm at the bottom of the connecting arm.

[0012] As a preferred embodiment of the present invention, an automatic screening device for frozen blocks of a stacker and reclaimer, the protective component includes a shaft rod rotatably installed in the material guide trough and a second electro-hydraulic push rod fixed to the top of the connecting frame, and the outer side of the shaft rod is sleeved with a baffle, one end of the shaft rod extends to the outside of the connecting frame and is fixed with a connecting column, and a connecting component is jointly installed between the connecting column and the second electro-hydraulic push rod; the connecting component includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are hinged, the first connecting rod and the second electro-hydraulic push rod are fixedly connected, and the second connecting rod is sleeved on the outside of the connecting column.

[0013] As a preferred embodiment of the automatic frozen block screening device for a stacker-reclaimer of the present invention, the screening grates are welded into grids, and the grids are used to screen large frozen blocks.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model can realize the crushing and screening between the screening grate and the frozen blocks through the setting of the screening assembly, and can prevent the blocking of the material guide chute which requires the machine to be stopped for cleaning, and can also block and protect the screening grate and the conveyor belt, and can prevent large frozen blocks from damaging the conveyor belt, thereby greatly improving the service life of the conveyor belt and enhancing the efficiency of the material taking operation;

[0016] In addition, the provision of protective components can prevent frozen blocks from falling directly onto the conveyor belt, further preventing the conveyor belt from being damaged and increasing the service life of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the material receiving plate and screening grate during installation of the utility model;

[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the middle support assembly;

[0021] In the figure: 1. Hopper receiving plate; 11. Connecting frame; 12. Conveyor belt; 13. Material guide trough; 2. Screening assembly; 21. Mounting plate; 22. Receiving plate; 23. Screening grate; 3. Support assembly; 31. Support seat; 32. Stabilizing frame; 33. Rotating column; 34. Connecting arm; 35. Forearm; 36. First electro-hydraulic push rod; 6. Protective assembly; 61. Baffle; 62. Shaft; 63. Connecting assembly; 64. Second electro-hydraulic push rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figure 1-Figure 3 The present invention relates to an automatic screening device for frozen blocks of a stacker and reclaimer, comprising:

[0024] The hopper receiving plate 1 has a connecting frame 11 and a conveyor belt 12 installed on one side of the hopper receiving plate 1. The conveyor belt 12 is used to transport materials. A material guide trough 13 is provided at the top of the connecting frame 11, and the material guide trough 13 is located directly above the conveyor belt 12.

[0025] As can be seen from the above, when in use, the hopper receiving plate 1 first takes the material, and then the taken-out material falls along the inside of the hopper receiving plate 1 to the inside of the guide trough 13, and the inside of the guide trough 13 guides the fallen material to the surface of the conveyor belt 12, and then the conveyor belt 12 transports the material away, thereby completing the material taking.

[0026] refer to Figure 1-Figure 3 As shown, the screening component 2 is used to screen the frozen blocks. The screening component 2 includes a mounting plate 21 installed on the top of the connecting frame 11 and a receiving trough opened on the top of the mounting plate 21 for the frozen blocks to fall into, and the receiving trough is communicated with the inside of the guide trough 13. A screening grate 23 is installed in the receiving trough, and an inclined receiving plate 22 is fixed at one end of the mounting plate 21. The connecting frame 11 is provided with a support component 3 for connecting the receiving plate 22, and the connecting frame 11 is provided with a protective component 6 for protecting the guide trough 13. The screening grate 23 is welded into a grid, and the grid is used to screen large frozen blocks. The specification of the grid is 300*500.

[0027] The support assembly 3 includes two stabilizing frames 32 symmetrically fixed on one side of the connecting frame 11 and a support seat 31 fixed to the bottom of the receiving plate 22, and a rotatable rotating column 33 is installed between the two stabilizing frames 32, one side of the support seat 31 is inserted between the two stabilizing frames 32 and is sleeved on the outside of the rotating column 33, and the connecting frame 11 is provided with a power assembly that drives the rotating column 33 to rotate; the power assembly includes a support frame fixed to the bottom of the connecting frame 11, one end of the rotating column 33 passes through the outside of the stabilizing frame 32 and is sleeved with a connecting arm 34, and a first electro-hydraulic push rod 36 is fixed to the top of the support frame, and one end of the first electro-hydraulic push rod 36 is hinged to the bottom of the connecting arm 34 with a small arm 35.

[0028] Through the above technical solution:

[0029] When the frozen block material falls into the guide chute 13, the frozen block is dug out by the connecting frame 11, and the dug frozen block falls to the top of the mounting plate 21, and then the frozen block collides with the screening grate 23 when falling. When the frozen block is large, the screening grate 23 screens the frozen block, and the frozen block is screened out and remains on the screening grate 23. Not only can the frozen block be screened by the screening grate 23, but also the blocking and protection between the screening grate 23 and the conveyor belt 12 can be prevented, so that the conveyor belt 12 can be prevented from being damaged by large frozen blocks, thereby improving the service life of the conveyor belt 12 and enhancing the efficiency of the material taking operation.

[0030] When there are many large frozen blocks on the screening grate 23, the first electro-hydraulic push rod 36 extends to push the small arm 35 to move in the direction of the force, and then the small arm 35 moves to drive the connecting arm 34 to rotate. At this time, the rotation of the connecting arm 34 drives the rotating column 33 to rotate, and the rotating column 33 is rotated between the two stabilizing frames 32. However, the rotation of the rotating column 33 drives the receiving plate 22 to rotate. As the receiving plate 22 rotates, the mounting plate 21 is automatically flipped over, and then the large frozen blocks on the receiving plate 22 roll along the screening grate 23 into the receiving plate 22, turning the large material frozen blocks out and falling into the ore pile, preventing the large material frozen blocks from damaging the conveyor belt 12 or causing the guide chute 13 to be blocked.

[0031] Furthermore, regarding the above-mentioned protection component 6, as Figure 1-Figure 3 As shown, the protective assembly 6 includes a shaft rod 62 rotatably installed in the material guide trough 13 and a second electro-hydraulic push rod 64 fixed to the top of the connecting frame 11, and the outer portion of the shaft rod 62 is sleeved with a baffle 61, one end of the shaft rod 62 extends to the outside of the connecting frame 11 and is fixed with a connecting column, and a connecting assembly 63 is jointly installed between the connecting column and the second electro-hydraulic push rod 64; based on this, the second electro-hydraulic push rod 64 is retracted upward, and at this time, the second electro-hydraulic push rod 64 moves to drive the first connecting rod to move upward, and then the first connection pulls the second connecting rod to move upward, and the second connecting rod drives the connecting column to rotate, and the rotation of the connecting column drives the shaft rod 62 to rotate in the material guide trough 13, fine-tuning the angle of the baffle 61 in the material guide trough 13, and then the baffle 61 is in a tilted state in the material guide trough 13, so that the baffle 61 reduces the impact force of the frozen block, thereby being able to guide the frozen block, and can prevent the frozen block from falling directly on the conveyor belt 12, further avoiding the conveyor belt 12 from being damaged, and improving the service life of the conveyor belt 12.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automatic screening device for frozen blocks of a stacker / reclaimer, characterized in that: include: A hopper receiving plate (1), a connecting frame (11) and a conveyor belt (12) are installed on one side of the hopper receiving plate (1), and the conveyor belt (12) is used to transport the material iron ore, and a guide trough (13) is opened at the top of the connecting frame (11), and the guide trough (13) is located directly above the conveyor belt (12); A screening assembly (2) is used for screening frozen blocks. The screening assembly (2) comprises a mounting plate (21) mounted on the top of a connecting frame (11) and a receiving trough provided at the top of the mounting plate (21) for the frozen blocks to fall into. The receiving trough is communicated with the interior of a material guide trough (13). A screening grate (23) is installed in the receiving trough. An inclined receiving plate (22) is fixed to one end of the mounting plate (21). A supporting assembly (3) for connecting the receiving plate (22) is provided on the connecting frame (11). A protective assembly (6) for protecting the material guide trough (13) is provided on the connecting frame (11).

2. The automatic screening device for frozen blocks of a stacker and reclaimer according to claim 1, characterized in that: The support assembly (3) comprises two stabilizing frames (32) symmetrically fixed on one side of the connecting frame (11) and a support seat (31) fixed on the bottom of the material receiving plate (22), and a rotatable rotating column (33) is installed between the two stabilizing frames (32), one side of the support seat (31) is inserted between the two stabilizing frames (32) and sleeved on the outside of the rotating column (33), and a power assembly for driving the rotating column (33) to rotate is provided on the connecting frame (11).

3. The automatic screening device for frozen blocks of a stacker and reclaimer according to claim 2, characterized in that: The power assembly includes a support frame fixed to the bottom of the connecting frame (11), one end of the rotating column (33) passes through the outside of the stabilizing frame (32) and is sleeved with a connecting arm (34), a first electro-hydraulic push rod (36) is fixed to the top of the support frame, and one end of the first electro-hydraulic push rod (36) is hinged to the bottom of the connecting arm (34) with a small arm (35).

4. The automatic screening device for frozen blocks of a stacker and reclaimer according to claim 1, characterized in that: The protective assembly (6) includes a shaft (62) rotatably installed in the guide trough (13) and a second electro-hydraulic push rod (64) fixed to the top of the connecting frame (11), and the shaft (62) is sleeved with a baffle (61) on the outside, one end of the shaft (62) extends to the outside of the connecting frame (11) and is fixed with a connecting column, and a connecting assembly (63) is installed between the connecting column and the second electro-hydraulic push rod (64).

5. The automatic screening device for frozen blocks of a stacker and reclaimer according to claim 1, characterized in that: The screening grates (23) are welded into grids, and the grids are used to screen large frozen blocks.

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