Ore anti-dumping device and using method thereof

Abstract

The invention discloses an ore anti-dumping device and a using method thereof. The ore anti-dumping device comprises an ore drawing funnel; the chute is matched with the bottom of the ore drawing funnel; one end of each I-shaped cross beam is hinged to the outer side of the ore drawing funnel and located above the chute, and the I-shaped cross beams are horizontally distributed at intervals; the rotating shaft is rotationally connected with one ends of the I-shaped cross beams; the flat plate stretches across and is fixedly connected to the upper flanges at the other ends of the I-shaped cross beams; one end of the baffle stretches across and is fixedly connected to the lower flanges of the other ends of the I-shaped cross beams; the plurality of outer cylinder bodies are positioned between the two adjacent I-shaped cross beams; one end of the connecting rod is hinged to the outer side of the ore drawing funnel and located above the I-shaped cross beam; and the tension spring is connected between the other end of the connecting rod and the flat plate. The device has the beneficial effects that ore is prevented from sliding off in a large area, production is normalized, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of mining equipment, and in particular to an ore anti-dumping device and a use method thereof. Background Art

[0002] In underground mining operations, ore-discharging equipment is usually installed at the bottom of the chute in the mining area to discharge the ore in the chute into the mine cars in the horizontal transportation tunnel. This method of discharging ore and loading mine cars is the main link in mine production and transportation. The ore-discharging efficiency directly determines the ore-output efficiency.

[0003] The ore-feeding equipment used in underground mines is currently mainly a vibrating ore-feeding machine. This type of ore-feeding machine is a vibration-type inertial vibration ore-feeding equipment with a vibration motor as the excitation source. The ore is discharged through the ore-feeding funnel at the bottom of the ore-feeding machine, and the discharged ore is transported through the chute. Some chutes have a large amount of mud ore, water ore, etc. Sometimes when there is a lot of mud ore or a high water content, the vibrating ore-feeding machine causes the ore body to be unable to remain still, and the ore body slides and causes a large-scale dumping. Generally, it takes 6-8 people 5-7 days to handle one ore dumping. Sometimes when there are too many mud ore or water ore, it will not cause a large-scale sliding and dumping of ore, but it will bring great difficulties to ore-feeding. There is no effective control method and there are safety hazards. The current solution is to try not to place chutes with mud ore or water ore, which requires a long time of waiting (waiting for the mud ore or water ore to be reduced or dried before ore-feeding), which also increases production costs and time. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing ore discharge device generates ore dumping which cannot be handled when encountering muddy ore or water ore, and for this purpose, an ore dumping prevention device and a use method thereof are provided.

[0005] The technical solution of the present invention is: an ore dumping prevention device, comprising: an ore discharge funnel; a chute, the chute is matched with the bottom of the ore discharge funnel; a plurality of I-shaped cross beams, one end of the plurality of I-shaped cross beams is hinged to the outside of the ore discharge funnel and is located above the chute, and the plurality of I-shaped cross beams are horizontally spaced; a rotating shaft, the rotating shaft is rotatably connected to one end of the plurality of I-shaped cross beams; a flat plate, the flat plate spans and is fixedly connected to the upper flange of the other end of the plurality of I-shaped cross beams; a baffle, one end of the baffle spans and is fixedly connected to the lower flange of the other end of the plurality of I-shaped cross beams Flange; a plurality of outer cylinders, a plurality of the outer cylinders being located between two adjacent I-shaped beams; a support block, the support block being fixedly connected to both sides of one end of the outer cylinder and extending toward the webs of two adjacent I-shaped beams; a roller, the roller being fixedly connected to the end of the support block and slidingly matched with the upper flange and the lower flange of the I-shaped beam; a connecting rod, one end of the connecting rod being hinged to the outside of the ore-discharging hopper and being located above the I-shaped beam; a tension spring, the tension spring being connected between the other end of the connecting rod and the flat plate, so that the plurality of I-shaped beams are in a horizontal state under normal conditions.

[0006] The improvement of the above scheme is that the bottom of the outer cylinder is open, and the inner cylinder is slidably fitted inside the outer cylinder. The end of the inner cylinder located inside the outer cylinder is provided with a boss slidably fitted with the inner wall of the outer cylinder. The bottom opening of the outer cylinder has a stop portion that cooperates with the boss, and a compression spring is adapted between the boss and the stop portion. A window is provided on the part of the inner cylinder located outside the outer cylinder.

[0007] A further improvement of the above solution is that a cover plate is detachably connected to one end of the inner cylinder outside the outer cylinder.

[0008] A further improvement of the above solution is that a gasket is provided between the rotating shaft and the web of each I-shaped crossbeam.

[0009] A further improvement of the above scheme is that arc-shaped notches are provided in the middle of the upper flange and the lower flange of the I-shaped crossbeam, and the outer cylinder normally stays at the position of the arc-shaped notches.

[0010] Another improvement of the above solution is that both sides of the baffle are fixedly connected to the lower flanges of a plurality of I-shaped beams through reinforcing ribs.

[0011] The method for using the ore anti-dumping device includes the following steps: under normal conditions, a plurality of I-shaped crossbeams are in a horizontal state, an outer cylinder is located in the middle of the I-shaped crossbeam and its bottom is located in the chute and does not contact the ore; when the ore in the ore discharge hopper dumps, the amount of ore in the chute increases and contacts the outer cylinder, pushing the outer cylinder to move toward the flat plate, and the I-shaped crossbeam rotates downward around the rotating shaft until the outer cylinder contacts the baffle, and the baffle and the outer cylinder press the dumped ore.

[0012] The beneficial effect of the present invention is that when ore spills, the sliding of the outer cylinder automatically drives the baffle plate to be pressed down, thereby preventing the ore from sliding down over a large area, normalizing production, and eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the ore anti-dumping device of the present invention; Figure 2 yes Figure 1 Schematic diagram of the coordination between the middle I-shaped crossbeam and the outer cylinder; Figure 3 yes Figure 1 Schematic diagram of the coordination between the middle I-shaped crossbeam, the flat plate, the baffle and the rotating shaft; Figure 4 yes Figure 3 A side view schematic diagram of Figure 5 yes Figure 4 A top view schematic diagram of Figure 6It is a schematic diagram of the cooperation between the I-shaped crossbeam, the outer cylinder and the inner cylinder of a preferred example of the present invention; Figure 7 yes Figure 6 Schematic diagram of the coordination between the middle and outer cylinders and the inner cylinder; In the figure, 1, chute, 2, I-shaped beam, 3, rotating shaft, 4, flat plate, 5, baffle, 6, outer cylinder, 7, support block, 8, roller, 9, connecting rod, 10, tension spring, 11, inner cylinder, 12, boss, 13, compression spring, 14, window, 15, gasket. DETAILED DESCRIPTION

[0014] The technical scheme of the present invention is described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0015] like Figure 1-5 As shown, the ore dumping prevention device comprises: an ore discharge funnel; a chute 1, the chute cooperates with the bottom of the ore discharge funnel; three I-shaped cross beams 2, one end of the three I-shaped cross beams is hinged to the outside of the ore discharge funnel and is located above the chute, and the three I-shaped cross beams are horizontally spaced; a rotating shaft 3, the rotating shaft is rotatably connected to one end of the three I-shaped cross beams; a flat plate 4, the flat plate spans and is fixedly connected to the upper flange of the other end of the three I-shaped cross beams; a baffle 5, one end of the baffle spans and is fixedly connected to the lower flange of the other end of the three I-shaped cross beams; two outer cylinders 6, the two outer cylinders are located between two adjacent I-shaped cross beams; a support A support block 7, wherein the support block is fixedly connected to both sides of one end of the outer cylinder and extends to the webs of two adjacent I-beams, that is, two support blocks are fixedly connected to both sides of each outer cylinder; a roller 8, wherein the roller is fixedly connected to the end of the support block and is slidingly matched with the upper flange and the lower flange of the I-beam, that is, the roller rolls between the upper flange and the lower flange of the I-beam, and the outer cylinder is slidingly matched with the I-beam through the roller; a connecting rod 9, wherein one end of the connecting rod is hinged to the outside of the ore discharge hopper and is located above the I-beam; a tension spring 10, wherein the tension spring is connected between the other end of the connecting rod and the flat plate, so that a plurality of I-beams are in a horizontal state under normal conditions.

[0016] The method for using the ore anti-dumping device includes the following steps: under normal conditions, a plurality of I-shaped crossbeams are in a horizontal state, an outer cylinder is located in the middle of the I-shaped crossbeam and its bottom is located in the chute and does not contact the ore; when the ore in the ore discharge hopper dumps, the amount of ore in the chute increases, and the amount of ore accumulated in the chute increases, the ore will contact the outer cylinder, and push the outer cylinder to move toward the flat plate, breaking the balance of the I-shaped crossbeam under normal conditions, and the I-shaped crossbeam rotates downward around the rotating shaft until the outer cylinder contacts the baffle, and the baffle and the outer cylinder press the dumped ore.

[0017] As a preferred example of the present invention, Figure 6-7 As shown, the bottom of the outer cylinder is open, and the inner cylinder 11 is slidably matched in the outer cylinder. One end of the inner cylinder located in the outer cylinder is provided with a boss 12 that is slidably matched with the inner wall of the outer cylinder. The bottom opening of the outer cylinder has a stopper that matches the boss, and a compression spring 13 is adapted between the boss and the stopper. The part of the inner cylinder located outside the outer cylinder is provided with a window 14. Under normal conditions, the lower part of the inner cylinder is exposed outside the outer cylinder and suspended in the chute. Under normal conditions, there is a gap between the ore transportation volume and the inner cylinder. When the ore impacts the inner cylinder, part of the ore and cement will enter the window, the deadweight of the inner cylinder increases, and the inner cylinder moves downward in the outer cylinder, compressing the compression spring to ensure that the overall deadweight of the outer cylinder and the inner cylinder increases, and the pressure on the ore is more reliable.

[0018] As an embodiment of the present invention, one end of the inner cylinder outside the outer cylinder is detachably connected with a cover plate, and when maintenance is required, the cover plate can be opened to discharge the ore and cement.

[0019] A washer 15 is provided between the rotating shaft and the web of each I-shaped cross beam. The washer can protect the surface between the rotating shaft and the web and disperse the pressure of the rotating shaft on the web.

[0020] As an embodiment of the present invention, an arc-shaped notch is opened in the middle of the upper flange and the lower flange of the I-shaped crossbeam, and the outer cylinder normally stays at the position of the arc-shaped notch. The arc-shaped notch is used to position the outer cylinder to ensure that the position where it stays under normal circumstances can be stable. When the outer cylinder is impacted by ore, the outer cylinder will rush out of the arc-shaped notch and move toward the flat plate.

[0021] In order to improve the strength of the baffle, both sides of the baffle are fixedly connected to the lower flanges of a plurality of I-shaped cross beams through reinforcing ribs.

Claims

1. Ore anti-dumping device, characterized by: include: An ore discharge funnel; a chute (1), the chute being matched with the bottom of the ore discharge funnel; a plurality of I-shaped cross beams (2), one end of the plurality of I-shaped cross beams being hingedly connected to the outside of the ore discharge funnel and being located above the chute, and the plurality of I-shaped cross beams being horizontally spaced apart; a rotating shaft (3), the rotating shaft being rotatably connected to one end of the plurality of I-shaped cross beams; a flat plate (4), the flat plate spanning and being fixedly connected to the upper flanges of the other ends of the plurality of I-shaped cross beams; a baffle (5), one end of the baffle spanning and being fixedly connected to the lower flanges of the other ends of the plurality of I-shaped cross beams; and a plurality of outer cylinders (6) , the plurality of outer cylinders are located between two adjacent I-shaped cross beams; a support block (7), the support block is fixedly connected to both sides of one end of the outer cylinder and extends toward the webs of the two adjacent I-shaped cross beams; a roller (8), the roller is fixedly connected to the end of the support block and is slidably matched with the upper flange and the lower flange of the I-shaped cross beam; a connecting rod (9), one end of the connecting rod is hinged to the outside of the ore discharge funnel and is located above the I-shaped cross beam; a tension spring (10), the tension spring is connected between the other end of the connecting rod and the flat plate, so that the plurality of I-shaped cross beams are in a horizontal state under normal conditions.

2. The ore anti-dumping device according to claim 1, characterized in that: The bottom of the outer cylinder is open, and an inner cylinder (11) is slidably fitted inside the outer cylinder. One end of the inner cylinder located inside the outer cylinder is provided with a boss (12) slidably fitted with the inner wall of the outer cylinder. The bottom opening of the outer cylinder has a stop portion that fits with the boss, and a compression spring (13) is adapted between the boss and the stop portion. A window (14) is provided on the portion of the inner cylinder located outside the outer cylinder.

3. The ore anti-dumping device according to claim 2, characterized in that: One end of the inner cylinder outside the outer cylinder is detachably connected with a cover plate.

4. The ore anti-dumping device according to claim 1, characterized in that: A washer (15) is provided between the rotating shaft and the web of each I-shaped crossbeam.

5. The ore anti-dumping device according to claim 1, characterized in that: The middle parts of the upper flange and the lower flange of the I-shaped cross beam are provided with arc-shaped notches, and the outer cylinder normally stays at the position of the arc-shaped notches.

6. The ore anti-dumping device according to claim 1, characterized in that: The two sides of the baffle are fixedly connected to the lower flanges of a plurality of I-shaped cross beams through reinforcing ribs.

7. The method for using the ore anti-dumping device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Under normal circumstances, several I-shaped beams are in a horizontal state, the outer cylinder is located in the middle of the I-shaped beam and its bottom is located in the chute and does not contact the ore. When the ore in the ore discharge funnel pours out, the amount of ore in the chute increases and contacts the outer cylinder, pushing the outer cylinder to move toward the flat plate, and the I-shaped beam rotates downward around the rotating shaft until the outer cylinder contacts the baffle, and the baffle and the outer cylinder press the pouring ore.

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