Coal storage tank for strip mine scraper conveyor and scraper conveyor

Abstract

The coal storage tank comprises a middle tank body, the middle tank body comprises a tank middle plate and side tank plates fixed to the two sides of the tank middle plate respectively, the coal storage tank is arranged in a pit, the top of each side tank plate is fixedly connected with an inclined baffle, a supporting seat is fixed to the outer side of each baffle, and the supporting seats are arranged in the pit. The included angle alpha between the baffle and the horizontal plane is larger than or equal to 33 degrees and smaller than or equal to 43 degrees, end connecting rib plates are fixed to the two ends of the coal storage tank respectively, a plurality of mounting holes are formed in the end connecting rib plates, a reinforcing rib plate is fixed to the middle of the outer side of the baffle, and the two ends of the reinforcing rib plate are fixedly connected with the end connecting rib plates respectively. The coal storage tank for the strip mine scraper conveyor and the strip mine scraper conveyor can bear the impact force of a mine clamp, can bear the abrasion of a scraper, a chain, coal and gangue, and can store coal and play a role in buffering coal flow at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyors, in particular to a coal storage tank for an open-pit mine scraper conveyor and a mine scraper conveyor. Background Art

[0002] In open-pit mine mining, in order to improve the crushing efficiency of large coal pieces, several mining trucks are required to unload coal onto the scraper conveyor of the crushing station at the same time. Due to the large unloading volume, high unloading height, and the very large impact force of coal and gangue on the chute of the scraper conveyor, especially on the middle chute, it greatly exceeds the bearing capacity of the existing middle chute. At the same time, the huge impact force causes serious wear on the middle chute.

[0003] Therefore, it is necessary to improve the existing middle chute so that it can withstand the impact force of mining trucks, withstand the wear of scrapers, chains, coal, and gangue, and at the same time be able to store coal to play a role in buffering the coal flow. Summary of the Utility Model

[0004] In order to overcome the above defects, the technical problem solved by the utility model is to provide a coal storage tank for an open-pit mine scraper conveyor and a mine scraper conveyor, which can not only withstand the impact force of mining trucks, withstand the wear of scrapers, chains, coal, and gangue, but also be able to store coal to play a role in buffering the coal flow.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A coal storage tank for an open-pit mine scraper conveyor, the coal storage tank includes a middle chute body, the middle chute body includes a middle chute plate and side chute plates respectively fixed on both sides of the middle chute plate, and is characterized in that:

[0007] The coal storage tank is arranged in a pit, the top of the side chute plate is fixedly connected with an inclined baffle, a support seat is fixed outside the baffle, and let the included angle between the baffle and the horizontal plane be α, 33° ≤ α ≤ 43°.

[0008] Both ends of the coal storage tank are respectively fixed with end connecting rib plates, a plurality of mounting holes are opened on the end connecting rib plates, a reinforcing rib plate is fixed in the middle outside the baffle, and both ends of the reinforcing rib plate are respectively fixedly connected with the end connecting rib plates.

[0009] Preferably, let the friction angle between the coal in the middle chute body and the baffle wall surface be θ, α = θ.

[0010] Preferably, the support seat includes a middle connecting rib plate and an L-shaped support plate connected to each other, and the middle connecting rib plate is arranged parallel to the end connecting rib plate.

[0011] Preferably, a connecting bottom plate is fixed to the bottom of the support base. The L-shaped support plate includes a horizontal support plate and a vertical support plate which are fixedly connected to each other. The bottom of the horizontal support plate is fixed to the connecting bottom plate.

[0012] Preferably, bolt installation holes are formed in the connecting bottom plate, and the connecting bottom plate is fixedly connected to the bottom wall of the pit through bolts.

[0013] Preferably, the middle trough body includes a trough bottom plate, and a maintenance passage is arranged below the trough bottom plate.

[0014] A scraper conveyor includes the coal storage trough for the open-pit mine scraper conveyor as described above.

[0015] Preferably, the scraper conveyor includes multiple sections of the coal storage troughs, and the end connecting rib plates of adjacent two sections of the coal storage troughs are fixedly connected through bolts.

[0016] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] For the coal storage trough for the open-pit mine scraper conveyor of the present utility model, the coal storage trough includes a middle trough body. The middle trough body includes a trough middle plate and side trough plates respectively fixed on both sides of the trough middle plate. The coal storage trough is arranged in a pit. The top of the side trough plate is fixedly connected with an inclined baffle. A support base is fixed outside the baffle. Let the included angle between the baffle and the horizontal plane be α, and 33° ≤ α ≤ 43°. End connecting rib plates are respectively fixed at both ends of the coal storage trough. Multiple installation holes are formed in the end connecting rib plates. A reinforcing rib plate is fixed in the middle outside the baffle. Both ends of the reinforcing rib plate are respectively fixedly connected to the end connecting rib plates. When the mining truck unloads, coal and gangue roll into the coal storage trough, and the baffle plays a buffering role. There is a scraper conveying mechanism below the middle trough body of the coal storage trough. While the coal is being unloaded, the scraper conveying mechanism can transport the coal forward and evenly load it into the coal storage trough. As the scraper conveying mechanism continues to transport, the coal gradually spreads out in the coal storage trough, thereby realizing the function of evenly outputting the coal.

[0018] The coal storage trough for the open-pit mine scraper conveyor and the mine scraper conveyor of the present utility model can not only withstand the impact force of the mining truck, but also endure the abrasion of the scraper, chain, coal and gangue, and at the same time can store coal and play a role in buffering the coal flow. Description of the Drawings

[0019] Figure 1 is a schematic structural view of the coal storage trough for the open-pit mine scraper conveyor of the present utility model;

[0020] Figure 2 is Figure 1 the transverse sectional view in

[0021] Figure 3 isFigure 1 Schematic diagram of the application state of the first embodiment of the middle coal storage tank;

[0022] Figure 4 is Figure 1 Schematic diagram of the application state of the second embodiment of the middle coal storage tank;

[0023] In the figure: 1, middle tank plate; 100, tank bottom plate; 2, side tank plate; A, coal storage tank; 3, pit; 4, baffle; 5, support seat; 501, middle connecting rib plate; 502, L-shaped support plate; 5021, horizontal support plate; 5022, vertical support plate; 6, reinforcing rib plate; 7, end connecting rib plate; 701, mounting hole; 8, connecting bottom plate; 9, maintenance passage; M, coal. Specific embodiments

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Embodiment 1:

[0026] As Figure 1 and Figure 3 shown, the embodiment of the present utility model discloses a coal storage tank A for a scraper conveyor in an open-pit mine. The coal storage tank A includes a middle tank body. The middle tank body includes a middle tank plate 1 and side tank plates 2 respectively fixed on both sides of the middle tank plate 1. The coal storage tank A is arranged in a pit 3. The top of the side tank plate 2 is fixedly connected with an inclined baffle 4. A support seat 5 is fixed outside the baffle 4. Let the angle between the baffle 4 and the horizontal plane be α, and 33° ≤ α ≤ 43°.

[0027] End connecting rib plates 7 are respectively fixed at both ends of the coal storage tank A. A plurality of mounting holes 701 are formed in the end connecting rib plates 7. A reinforcing rib plate 6 is fixed in the middle outside the baffle 4. Both ends of the reinforcing rib plate 6 are respectively fixedly connected with the end connecting rib plates 7.

[0028] Preferably, the end connecting rib plates 7 are welded and fixed to the side tank plates 2 and the baffle 4. The support seats 5 are respectively welded and fixed to the baffle 4 and the side tank plates 2. The reinforcing rib plate 6 is respectively welded and fixed to the baffle 4, the end connecting rib plates 7 and the support seats 5.

[0029] In some embodiments, let the friction angle between the coal in the middle tank body and the baffle wall surface be θ, and α = θ.

[0030] When the mining truck unloads, the coal M rolls into the coal storage tank A. The baffle 4 plays a buffering role. There is a scraper conveying mechanism at the lower part of the middle tank body of the coal storage tank A. While the coal M is being unloaded, the scraper conveying mechanism can transport the coal M forward and evenly load it into the coal storage tank A. As the scraper conveying mechanism continues to transport, the coal M gradually spreads out in the coal storage tank A, thereby realizing the function of evenly outputting the coal.

[0031] The coal storage tank for the open-pit coal mining scraper conveyor of the present utility model can not only withstand the impact force of the mining truck, but also endure the abrasion of the scraper, chain, coal and gangue. At the same time, it can store coal and play a role in buffering the coal flow.

[0032] A support seat 5 is fixed on the outer side of the baffle 4 of the coal storage tank A, which increases the structural strength and impact resistance. A reinforcing rib plate 6 is fixed in the middle of the outer side of the baffle 4, further strengthening the structural strength of the baffle 4 and preventing the baffle 4 from being crushed by a large amount of coal.

[0033] In some embodiments, the support seat 5 includes a middle connecting rib plate 501 and an L-shaped support plate 502 connected to each other. The middle connecting rib plate 501 is arranged parallel to the end connecting rib plate 7. The setting of the middle connecting rib plate 501 enhances the structural strength of the side groove plate 2 and the baffle 4.

[0034] In some embodiments, a connecting bottom plate 8 is fixed at the bottom of the support seat 5. The L-shaped support plate 502 includes a horizontal support plate 5021 and a vertical support plate 5022 fixedly connected to each other. The bottom of the horizontal support plate 5021 is fixed on the connecting bottom plate 8. Anchor installation holes are provided on the connecting bottom plate 8, and the connecting bottom plate 8 is fixedly connected to the bottom wall of the pit 3 through bolts. Fixing the bottom plate on the bottom wall of the pit 3 through the anchor increases the stability of the coal storage tank A, and further reduces the vibration of the coal storage tank A.

[0035] Figure 3 In, the shape of the pit 3 is a rectangular pit. The baffle 4 of the coal storage tank A does not rely on the side wall of the rectangular pit, but is supported by the support seat 5. Fixing the connecting bottom plate 8 on the bottom wall of the pit 3 through the anchor increases the stability of the coal storage tank A, and further reduces the vibration of the coal storage tank A.

[0036] In some embodiments, a scraper conveyor includes the above-mentioned coal storage tank A for the open-pit coal mining scraper conveyor. The scraper conveyor includes multiple sections of the coal storage tank A, and the end connecting rib plates 7 of adjacent two sections of the coal storage tank A are fixedly connected through bolts.

[0037] The scraper conveyor of the present utility model can not only withstand the impact force of the mining truck, but also endure the abrasion of the scraper, chain, coal and gangue, extend the service life of the scraper conveyor, and improve the bearing capacity of the scraper conveyor.

[0038] Embodiment 2:

[0039] The difference between Embodiment 2 and Embodiment 1 is that;

[0040] Such as Figure 4As shown in the figure, the middle trough body includes a trough bottom plate 100, and a maintenance passage 9 is arranged below the trough bottom plate 100. The structure of the pit 3 is a combination of a trapezoidal pit in the upper part and a first rectangular pit and a second rectangular pit in the lower part. The baffle 4 of the coal storage tank A leans on the side wall of the trapezoidal pit in the upper part, and the baffle 4 of the coal storage tank A is supported by the side wall of the trapezoidal pit, with reliable support. The middle trough body is placed in the first rectangular pit, and the second rectangular pit forms a maintenance passage 9, which is convenient for maintenance from the bottom inspection opening of the trough bottom plate 100 when the chain of the scraper conveyor is damaged.

[0041] In summary, the coal storage tank for the open-pit mine scraper conveyor and the mine scraper conveyor can not only withstand the impact force of the mining truck, but also endure the wear of the scraper, chain, coal and gangue. At the same time, it can store coal and play a role in buffering the coal flow.

[0042] The present invention is not limited to the above specific embodiments. Various changes made by those of ordinary skill in the art starting from the above concept without creative labor fall within the protection scope of the present invention.

Claims

1. A coal storage trough for an open-pit mine scraper conveyor, the coal storage trough comprising a middle trough body, the middle trough body comprising a trough middle plate and side trough plates respectively fixed on both sides of the trough middle plate, characterized in that: The coal storage tank is arranged in the pit, the top of the side slot plate is fixedly connected with an inclined baffle, the outer side of the baffle is fixed with a support seat, and the angle between the baffle and the horizontal plane is α, 33°≤α≤43°, End connecting ribs are fixed at both ends of the coal storage tank, and a plurality of mounting holes are provided on the end connecting ribs. A reinforcing rib is fixed at the middle of the outer side of the baffle, and both ends of the reinforcing rib are fixedly connected to the end connecting ribs.

2. The coal storage tank for open-pit mine scraper conveyor according to claim 1, characterized in that: Assume that the friction angle between the coal in the middle trough and the baffle wall is θ, α=θ.

3. The coal storage tank for open-pit mine scraper conveyor according to claim 1, characterized in that: The support seat comprises a middle connecting rib plate and an L-shaped supporting plate which are connected to each other, and the middle connecting rib plate is arranged in parallel with the end connecting rib plates.

4. The coal storage tank for open-pit mine scraper conveyor according to claim 3, characterized in that: A connecting bottom plate is fixed to the bottom of the support seat, and the L-shaped support plate includes a horizontal support plate and a vertical support plate fixedly connected to each other, and the bottom of the horizontal support plate is fixed to the connecting bottom plate.

5. The coal storage tank for open-pit mine scraper conveyor according to claim 4, characterized in that: An anchor rod mounting holes are provided on the connecting bottom plate, and the connecting bottom plate is fixedly connected to the bottom wall of the pit via anchor rods.

6. The coal storage tank for open-pit mine scraper conveyor according to claim 1, characterized in that: The middle tank body comprises a tank bottom plate, and a maintenance passage is arranged at the lower part of the tank bottom plate.

7. A scraper conveyor, characterized in that: A coal storage trough for an open-pit mine scraper conveyor comprising any one of claims 1 to 6.

8. The scraper conveyor according to claim 7, characterized in that: The scraper conveyor comprises a plurality of sections of the coal storage troughs, and the end connecting ribs of two adjacent sections of the coal storage troughs are fixedly connected by bolts.

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