Working method of fixed bucket box type metallurgy skip bucket

Abstract

The invention discloses a working method of a fixed bucket box type metallurgical skip bucket, which is based on the fixed bucket box type metallurgical skip bucket, the fixed bucket box type metallurgical skip bucket comprises a frame, a main suspension plate beam arranged at the top, a tail rope beam and a material sliding guide groove arranged at the bottom, and guide clamps arranged at the two sides; the bucket box is fixedly mounted between the side plates of the frame, and a slope is arranged at the bottom end of the rear side; the gate assembly is rotationally connected with the bucket box and the side plates of the frame through hinge shafts and comprises an arc-shaped bottom plate and fan-shaped baffles on the two sides; the outer sides of the lower portions of the fan-shaped baffles on the two sides are each provided with an unloading Under the action of no external force, the gate is in a closed state by means of the gravity of the gate. According to the working method of the fixed bucket box type metallurgy skip bucket, the reliability and safety of the metallurgy skip bucket are further improved, the weight of the metallurgy skip bucket is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical mine hoisting machinery and equipment, in particular to a fixed bucket type metallurgical skip and its working method, which is suitable for vertical lifting and transportation of bulk materials in mining, metallurgy and other industries. Background Art

[0002] Vertical metallurgical skips are key lifting equipment used to transport ore and waste rock from underground mining to the surface. Currently, metallurgical skips are mainly divided into two categories: tipping skips and bottom-dumping skips, both of which are movable bucket-type skips.

[0003] In the prior art, the traditional movable bucket box type skip has the following defects: 1. The unloading drive guide wheel and safety lock hook adopt an integrated design and are located on the side of the bucket box, resulting in concentrated force on the components and severe wear; 2. The installation space is too compact, which can easily lead to stone accumulation and affect safety and reliability; 3. When the large-section and large-volume skip adopts the bottom supporting wheel and supporting wheel curved track structure, the unloading motion trajectory is limited, which makes it difficult to meet the unloading design requirements of deep well hoisting. 4. During unloading, the bucket box and the gate move at the same time, and the opening and closing resistance is large. At the same time, there is a gap between the bucket box and the frame, which easily jams the ore, causing the bucket box and the gate to be unable to close reliably, resulting in the failure of the safety lock and causing the bucket to open accidentally. Summary of the Invention

[0004] In response to the above technical problems, the present invention proposes a working method for a fixed bucket-box metallurgical skip. Compared with the existing movable bucket-box skip, the working method of the fixed bucket-box metallurgical skip has the technical effects of high reliability, high safety and light weight.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: A working method of a fixed bucket-box metallurgical skip is based on a fixed bucket-box metallurgical skip, the fixed bucket-box metallurgical skip comprising: The frame has a main suspension plate beam on the top, a tail rope beam and a material guide trough at the bottom, and guide clips on both sides; The bucket box is fixedly installed between the side plates of the frame, and has a slope at the bottom end of its rear side; The gate assembly is rotatably connected to the bucket box and the side panels of the frame through a hinge shaft. It includes a curved bottom plate and fan-shaped baffles on both sides, which together form a curved bottom gate. An unloading roller is provided on the outer side of the lower part of each fan-shaped baffle. In the absence of external force, the gate relies on its own gravity to remain closed. The following steps are included: S1, Unloading Phase: The skip is raised to an unloading point, the unloading point is provided with an unloading mechanism, the unloading mechanism is provided with an unloading guide rail for guiding the unloading roller on the gate assembly, the unloading mechanism pulls the unloading guide rail, and then drives the unloading roller and the gate assembly to open outward, the materials in the hopper box slide out along the hopper box slope and the hopper box lower opening, and are unloaded in a directional manner through the material sliding guide groove at the lower part of the frame. S2, reset stage: After unloading, the unloading mechanism pushes the gate to close, when the skip is lowered, the unloading roller is separated from the unloading guide rail, and the gate is in a closed state by gravity. S3, loading stage: The skip is lowered to a loading point, the loading point is provided with a limiting mechanism, the limiting mechanism can cooperate with the unloading roller to press and limit the gate assembly arranged at the loading point in a closed state; when loading, the gate still remains closed under the impact of the ore. S4, after the loading is completed, the skip is raised, and the unloading roller is separated from the limiting mechanism.

[0006] Beneficial effects: Compared with the existing movable hopper box type skip, the present application has the following technical advantages: First, the fixed hopper box integrated structure is integrally formed by welding / bolt fastening of the hopper box and the frame, the traditional movable hopper box design is cancelled, the self-weight is reduced, the structural strength is improved, and the problem of ore jamming between the hopper box and the frame is avoided.

[0007] Second, the gate unloading mechanism is optimized, the unloading roller + unloading mechanism is driven: the unloading roller is fixed on both sides of the gate, the unloading rail is pulled by the external unloading mechanism to control the opening and closing of the gate, the non-hopper box moves, the trajectory is simple, the opening and closing resistance is small, and the impact on the shaft is reduced.

[0008] Third, self-weight locking + limiting device: when the gate is closed, self-locking is realized by relying on the self-weight and the gate limiting device, the independent locking mechanism is cancelled, and the safety and reliability are improved.

[0009] Fourth, loading limiting protection, the limiting mechanism is arranged at the loading point to press the unloading roller, and the accidental opening caused by the impact of the ore falling on the gate is prevented.

[0010] In an optional embodiment, the unloading mechanism comprises a linear drive unit and an unloading guide rail, wherein the linear drive unit body is connected with a first rigid support at the unloading point through a first hinged support, the driving end of the linear drive unit is hinged with the unloading guide rail, the upper end of the unloading guide rail is connected with a second rigid support at the unloading point through a second hinged support, and the unloading guide rail is parallel to the lifting direction in a non-unloading state.

[0011] In an optional embodiment, the inclination angle of the material sliding guide groove is not less than 45 degrees.

[0012] In an alternative embodiment, the limiting mechanism is a limiting guide rail arranged at the loading point, which is installed parallel to the lifting direction.

[0013] In an alternative embodiment, the two side plates of the bottom of the bucket box are arc-shaped, so that the bottom end of the bucket box forms a converging horn mouth towards the direction of the outlet.

[0014] Beneficial effect: The rear side of the bucket box is provided with a material sliding guide groove, forming a converging horn mouth to guide the directional unloading of the material.

[0015] In an alternative embodiment, the arc-shaped bottom plate of the gate assembly is in sealing cooperation with the arc-shaped side plates on both sides of the bottom of the bucket box and the slope; the inner side of the gate is provided with a counterweight and a reinforcing rib.

[0016] Beneficial effect: The arc-shaped bottom plate structure is resistant to impact and is not easy to deform compared to the flat plate structure when loading; the arc-shaped bottom plate is in sealing cooperation with the arc-shaped side plates on both sides of the bottom of the bucket box and the slope, and the round arc surface cooperation ensures that the gate does not interfere with the cooperating surface when rotating to open and close.

[0017] In an alternative embodiment, the axis of the unloading roller is parallel to the rotating axis of the gate and is located below the center of gravity of the gate.

[0018] In an alternative embodiment, the gate limiting device is a mechanical stop block or a limiting pin to limit the closed position of the gate.

[0019] In an alternative embodiment, the top end of the frame is provided with a maintenance roof, including a square frame body and a conical top, the inclination angle of the conical top is greater than the repose angle of ore, which is used for personnel protection during maintenance and protection of the suspension device from rock impact.

[0020] In an alternative embodiment, the gate limiting device is arranged at the connection between the lower opening of the bucket box and the material sliding guide groove of the frame, which is used to limit the closed position of the gate when the gate is closed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 : Overall structure diagram of the bucket; Among them, 1, frame; 1-1, material sliding guide groove; 2, bucket assembly; 2-1, slope; 3, gate; 4, unloading roller; 5, gate limiting device; 6, safety shed; 7, loading port; Figure 2 : Figure 1 Side view; Figure 3 : Structure schematic diagram of the gate assembly; Among them, 3-1, gate baffle; 3-2, arc-shaped bottom plate; 3-3, counterweight; 3-4, reinforcing rib; Figure 4 : Figure 3Side view; Among them, 3-5, articulated axis; Figure 5 : Schematic diagram of the gate assembly opening process when the skip is at the unloading point; Among them, 8, linear drive unit; 9, unloading guide rail; Figure 6 : Schematic diagram of the structure when the skip is at the loading point; Among them, 10. Limiting guide rail.

[0022] Figure 7 : Schematic diagram of unloading mechanism structure; Figure 8 : Figure 7 AA cross-sectional view; Figure 9 : Figure 7 BB cross-sectional view. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0024] Please refer to Figures 1 to 6 A specific embodiment of a working method of a fixed bucket box type metallurgical skip of the present invention is shown.

[0025] A working method of a fixed bucket-box metallurgical skip is based on a fixed bucket-box metallurgical skip, wherein the fixed bucket-box metallurgical skip comprises the following core components: 1. Frame components: The rigid frame made of steel plates and profiles bears the lifting load of the entire skip; The upper plate of the frame is equipped with a main suspension plate beam with a pin hole, and the lower plate is equipped with a tail rope beam. All components are connected and assembled with high-strength bolts and welding. Guide clamps are installed at the upper and lower ends of the frame to ensure stable guidance during the lifting process. The lower part of the frame is equipped with a material chute.

[0026] 2. Bucket box components: Located between the frame side panels, the bucket is a rectangular cylindrical structure, connected to the frame by welding or bolting to form an integral structure. The bottom of the rear side of the bucket is sloped, forming a bell-shaped structure that contracts toward the outlet. The lower part of the bottom two side panels is an arc-shaped structure.

[0027] 3. Gate assembly: The gate is located at the bottom of the bucket box and is connected to the bucket box and the frame side panels by rotating hinges. There is an arc-shaped bottom plate at the bottom of the gate, and fan-shaped baffles are provided on both sides, which are arranged parallel to the frame side panels and spaced apart to form an arc-shaped bottom gate.

[0028] 4. Unload the roller: There are two unloading rollers, which are fixed on the outer side of the lower part of the fan-shaped baffles on both sides of the gate.

[0029] 5. Gate limit device: The gate limit device is installed at the connection between the lower opening of the bucket box and the frame material guide groove, and is used to limit the position of the gate when it is closed.

[0030] 6.Safety protection structure A maintenance roof is provided at the top of the frame, which consists of a square frame and a conical top. It is used to protect personnel during maintenance and to protect the suspension device from falling rocks.

[0031] like Figure 1 and Figure 2 As shown, the frame 1 and the bucket box 2 are connected by welding or bolts to form a rectangular box frame structure, a loading port 7 is provided on one side of the upper part, an arc-shaped discharge port is provided on one side of the lower mouth of the bucket box 2, and a slope 2-1 is provided at the opposite bottom end of the bucket to form a contracting trumpet structure toward the outlet direction, and the lower part of the two side plates at the bottom is an arc-shaped structure.

[0032] Gate 3 is located at the bottom of the bucket and connected to the bucket and frame side panels via rotating hinges. It features a curved bottom panel 3-2, with fan-shaped panels on either side, spaced parallel to the frame side panels. This curved bottom panel 3-2 cooperates with the lower curved side panels, the bucket front panel, and the opening of ramp 2-1 to form a sealed structure. In the absence of external forces, gate 3 remains closed due to its own weight and the interaction of the gate stop mechanism.

[0033] There are two unloading rollers, which are respectively fixed on the outer sides of the two side plates of the gate.

[0034] The safety shed can be fixed to the top of the frame by bolts or welding. It consists of a square frame and a conical top. It is used to protect personnel during maintenance and protect the suspension device from falling rocks.

[0035] like Figure 3 and Figure 4 As shown in the figure, it is a structural diagram of the gate and the unloading roller. The counterweight 3-3 in the figure can ensure that the gate has a certain preload when closing to prevent the gate from opening accidentally. The reinforcing rib 3-4, the hinge shaft 3-5, and the unloading roller 4 are fixed to the outer side of the lower part of the two side plates of the gate by welding or bolting.

[0036] like Figure 5The figure shows the skip unloading process when the skip is at the unloading point. When the upward unloading roller of the skip enters the unloading guide rail of the unloading device and reaches the unloading point, the skip stops running and the unloading device opens the gate. After unloading is completed, the unloading device pushes back the gate. The unloading guide rail of the unloading device is in a vertical state and the skip can operate normally.

[0037] like Figure 6 As shown, when the skip moves downward to the loading point, the limiting guide rail 10 can press the unloading roller, and when loading into the skip, it can prevent the ore from breaking through the gate.

[0038] The working method of the fixed bucket type metallurgical skip of the present invention comprises the following steps: S1, Unloading Phase: The bucket moves upward to the unloading point, where an unloading mechanism is arranged. The unloading mechanism is provided with an unloading guide rail for guiding the unloading roller on the gate assembly. The unloading mechanism pulls the unloading guide rail, thereby driving the unloading roller and the gate assembly to open outward, and the material in the bucket box slides out along the bucket box slope and the bottom opening of the bucket box, and is directionally unloaded through the material chute at the bottom of the frame; S2, reset phase: After unloading, the unloading mechanism pushes the gate to close. When the bucket moves downward, the unloading roller is separated from the unloading guide rail, and the gate is closed by its own weight. S3, loading stage: The skip moves downwards to the loading point, where a limiting mechanism is arranged. The limiting mechanism can cooperate with the unloading roller to press the gate assembly arranged at the loading point to a closed state. During loading, the gate remains closed due to the impact force of the ore. S4. After loading is completed, the bucket moves upward and the unloading roller disengages from the limiting mechanism.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for operating a fixed-box metallurgical skip, based on a fixed-box metallurgical skip, comprising: The frame has a main suspension plate beam on the top, a tail rope beam and a material guide trough at the bottom, and guide clips on both sides; The bucket box is fixedly installed between the side plates of the frame, and has a slope at the bottom end of its rear side; The gate assembly is rotatably connected to the bucket box and the side panels of the frame through a hinge shaft. It includes a curved bottom plate and fan-shaped baffles on both sides, which together form a curved bottom gate. An unloading roller is provided on the outer side of the lower part of each fan-shaped baffle. In the absence of external force, the gate relies on its own gravity to remain closed. It is characterized in that it includes the following steps: S1, Unloading Phase: The bucket moves upward to the unloading point, where an unloading mechanism is arranged. The unloading mechanism is provided with an unloading guide rail for guiding the unloading roller on the gate assembly. The unloading mechanism pulls the unloading guide rail, thereby driving the unloading roller and the gate assembly to open outward, and the material in the bucket box slides out along the bucket box slope and the bottom opening of the bucket box, and is directionally unloaded through the material chute at the bottom of the frame; S2, reset phase: After unloading, the unloading mechanism pushes the gate to close. When the bucket moves downward, the unloading roller is separated from the unloading guide rail, and the gate is closed by its own weight. S3, loading stage: The skip moves downwards to the loading point, where a limiting mechanism is arranged. The limiting mechanism can cooperate with the unloading roller to press the gate assembly arranged at the loading point to a closed state. During loading, the gate remains closed due to the impact force of the ore. S4. After loading is completed, the bucket moves upward and the unloading roller disengages from the limiting mechanism.

2. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: The inclination angle of the material sliding guide groove is not less than 45 degrees.

3. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: The unloading mechanism includes a linear drive unit and an unloading guide rail, wherein the main body of the linear drive unit is connected to the first rigid bracket at the unloading point through a first hinged support, the driving end of the linear drive unit is hinged to the unloading guide rail, and the upper end of the unloading guide rail is connected to the second rigid bracket at the unloading point through a second hinged support. In the non-unloading state, the unloading guide rail is parallel to the lifting direction.

4. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: The limiting mechanism is a limiting guide rail arranged at the loading point, and the limiting guide rail is installed parallel to the lifting direction.

5. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: The two side plates at the bottom of the bucket box are arc-shaped, so that the bottom end of the bucket box forms a contraction bell mouth towards the outlet.

6. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: The arc-shaped bottom plate of the gate assembly is sealed with the arc-shaped side plates and slopes on both sides of the bottom of the bucket box; a counterweight block and reinforcing ribs are provided on the inner side of the gate.

7. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: The axis of the unloading roller is parallel to the gate rotation axis and is located below the gate's center of gravity.

8. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: The gate limiting device is a mechanical stopper or a limiting pin, which limits the closing position of the gate.

9. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: A maintenance roof is provided at the top of the frame, comprising a square frame body and a conical top. The inclination angle of the conical top is greater than the ore repose angle, and is used for protecting personnel during maintenance and protecting the suspension device from falling rocks.

10. The working method of the fixed bucket type metallurgical skip according to claim 1, characterized in that: A gate limiting device is provided at the connection between the lower opening of the bucket box and the material sliding guide groove of the frame, which is used to limit the closing position of the gate when the gate is closed.

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