A device for measuring the storage capacity of a draw shaft

Abstract

The utility model discloses a kind of ore storage measurement devices of chute, ore layer and measuring sign mechanism are equipped in chute, the inner ring of tyre body of measuring sign mechanism is open, open end is equipped with lashing hole, lashing hole is equipped with lashing, lashing is equipped with soft pad, soft pad and tyre body are equipped with ore filling layer, tyre body is equipped with reflective paste outside;Lighting mechanism and camera mechanism are equipped in haulage way;Mine discharge chamber and the wall surface of haulage way are equipped with observation window;Track scale and control room computer are connected on mine haulage track.The utility model designs simple and easy measuring sign mechanism with chute ore discharge natural fall, implement chute ore storage accurate and effective measurement, effectively avoid the occurrence of accidents such as slice collapse caused by emptying chute in measurement process.

Description

Technical Field

[0001] This invention belongs to the field of ore pass measurement in non-coal mines and metal and non-metal mines, and specifically relates to an ore pass reserve measurement device. Background Technology

[0002] A mine pass is a vertical transport channel for ore, relying on its own gravity. Passes are typically designed with rectangular or circular cross-sections and have a long service life. The calculated ore reserves of a pass are usually approximated using geometric volume methods (cylindrical or approximately prismatic) or layered measurement methods (irregular passes). However, due to factors such as the level of pass construction technology, the mechanical characteristics of the surrounding rock, and ore abrasion, impact, and blockage blasting, after a period of operation, the pass may experience wall spalling or even collapse. Simultaneously, as the mining level decreases, the wellhead elevation declines annually, resulting in significant changes to the actual shape and ore reserves compared to the original design. These changes in pass volume lead to substantial variations in ore reserves, significantly impacting the accuracy of upstream and downstream ore quantity measurement, ore blending time estimation, and pass measurement and acceptance.

[0003] Currently, the common method for measuring ore reserves in mine ore passes is to empty the pass and lower 3D measuring equipment inside to perform 3D spatial morphology measurements. However, emptying the pass can easily lead to large-scale collapse and blockage of the pass, making this method high in safety risk and not widely applicable. In daily production management, to prevent pass collapse and damage, strict control of the pass's empty height is required, and emptying the pass is strictly prohibited. This poses a significant challenge to measuring the actual ore reserves in mine ore passes. Summary of the Invention

[0004] The purpose of this invention is to provide a device for measuring the ore reserves in ore chutes.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A device for measuring the ore reserves in a ore pass includes a ore pass, a control room, a transport roadway, a ore discharge chamber, and a ore transport track. An ore layer and a measuring marker mechanism are provided inside the ore layer. The measuring marker mechanism includes a steel wire rope and a tire body connected to the steel wire rope. The inner ring of the tire body is open. Several sets of tying holes are provided on the upper and lower surfaces of the open end. Tying wires are passed through the tying holes. A soft pad is provided inside the tying wires to seal the open end. An ore filling layer is provided inside the soft pad and the tire body. A reflective sticker is provided on the outer wall of the tire body. Lighting and camera mechanisms are installed in the transport tunnel; An observation window is installed on the wall connecting the ore-discharging chamber and the transport roadway; A track scale is installed on the ore transport track, and the track scale is connected to the computer in the control room.

[0006] To further realize this utility model, the diameter of the tire body is no greater than 1 / 3 of the width of the ore outlet of the ore pass and no greater than 1 / 5 of the diameter of the ore pass.

[0007] To further realize this utility model, the number of binding holes is 36, and the hole diameter is 3.5mm.

[0008] To further realize this utility model, the ore filling layer uses crushed stone with a particle size of less than 300mm.

[0009] To further realize this utility model, the soft pad is made of rubber and has a width of 150mm.

[0010] The advantages of this utility model compared to the prior art are as follows: 1. The present invention features a simple measuring marker mechanism that falls naturally with the ore chute during ore discharge, enabling accurate and effective measurement of ore reserves in the ore chute and effectively avoiding accidents such as roof collapse caused by emptying the ore chute during the measurement process; 2. This utility model estimates the volume of the collapsed section in a ore pass by comparing the actual reserves with the design deviation, thus predicting and evaluating the degree of ore pass damage. For example, if the designed ore reserves of the ore pass are A, and the actual reserves are Q, when the ore pass is affected by factors such as ore impact and geological structure, the collapse of the shaft can cause Q ≥ A. The increase in shaft volume ΔV is calculated using (QA) / ore bulk density ρ, which is the collapse volume. The larger ΔV is, the more severe the collapse damage to the ore pass. By measuring the actual ore reserves of the ore pass at regular intervals and calculating ΔV, the degree of collapse during ore pass operation can be analyzed, the trend of ore pass damage development and change can be predicted and evaluated, and targeted measures can be taken.

[0011] 3. This utility model has advantages over traditional methods, such as high safety, low cost, and strong applicability, and is especially suitable for deep ore passes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the transport tunnel, ore discharge chamber, and ore transport track in this utility model; Figure 3 This is a schematic diagram of the measuring mark mechanism in this utility model; Figure 4 This is a partial cross-sectional view of the measuring mark mechanism in this utility model; The meanings of the symbols in the attached diagram are as follows: 1. Pass; 2. Ore layer; 3. Measuring marker mechanism; 4. Tire body; 5. Wire tying hole; 6. Wire tie; 7. Pad; 8. Ore filling layer; 9. Reflective tape; 10. Transport roadway; 11. Lighting mechanism; 12. Camera mechanism; 13. Ore discharge chamber; 14. Observation window; 15. Ore transport track; 16. Track scale. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1-4 As shown, a ore ore storage measurement device for a ore pass includes a ore pass, a control room, a transport roadway, a ore discharge chamber, and a ore transport track. An ore layer 2 and a measuring marker mechanism 3 are set inside the ore layer 2. The measuring marker mechanism 3 includes a steel wire rope and a tire body 4 connected to the steel wire rope. The diameter of the tire body 4 is no greater than 1 / 3 of the width of the ore discharge opening of the ore pass 1 and no greater than 1 / 5 of the diameter of the ore pass 1. The inner ring of the tire body 4 is open. Several sets of tying holes 5 are set on the upper and lower surfaces of the open end. There are 36 tying holes 5 with a diameter of 3.5 mm. Tying wires 6 are threaded through the tying holes 5. The tying wires 6 are made of No. 10 iron wire. A soft pad 7 is set on the inner side of the tying wires 6 to seal the open end. The soft pad 7 is made of rubber and has a width of 150 mm. An ore filling layer 8 is set inside the soft pad 7 and the tire body 4. The ore filling layer 8 is made of crushed stone with a particle size of less than 300 mm. A reflective sticker 9 is set on the outer wall of the tire body 4. A lighting mechanism 11 and a camera mechanism 12 are installed in the transport lane 10; An observation window 14 is provided on the wall connecting the ore-discharging chamber 13 and the transport roadway 10; A track scale 16 is installed on the ore transport track 15, and the track scale 16 is connected to the monitoring mechanism in the control room.

[0015] The following steps should be taken when performing the task: S1. Determine the maximum particle size of the ore entering the ore pass according to the design and construction data of the ore pass, and make a measuring marker mechanism according to this particle size. S2. When the ore layer is filled to a distance of 1-1.5m from the ore pass opening, stop ore pulling; place the measuring marker mechanism at the center of the top surface of the ore layer using a steel wire rope, cover the measuring marker mechanism with fine powdered ore until it is flush with the ore pass opening, and record the cumulative value Q1 of the metering device at this time. S3. During normal ore pulling and ore filling production, the ore discharge situation in the ore pass is observed on the monitoring device in the control room; S4. Estimate the designed ore volume A of the ore pass according to the design cross-section and elevation of the ore pass. Calculate the cumulative ore pulling volume Q from the moment the measuring marker mechanism is placed into the ore pass. When the ore volume Q is close to the estimated value A and less than the design value of 2000 tons, observe the ore discharge port of the ore pass and observe the fall of the reflective sticker of the measuring marker mechanism. Stop pulling ore immediately when the reflective sticker of the measuring marker mechanism is found. After confirming on-site that the measuring marker mechanism is correct, record the cumulative data value Q2 of the metering device at this moment. S5. Calculate the difference between Q1 and Q2 to obtain the actual ore reserves in the ore pass.

[0016] Before commencing operations, the equipment must be installed: First, a track scale is installed on the ore transport track at the ore chute outlet and connected to the computer in the control room, so that the measurement data is transmitted to the control room in real time.

[0017] An effective lighting device, including a searchlight and a camera, is installed on one wall of the roadway opposite the ore chute outlet to ensure that the camera can observe and effectively identify the measuring marker mechanism that is lowered into the railcar along with the ore.

[0018] According to the design and construction data of the ore pass, the maximum particle size of the ore entering the ore pass is determined to be 750mm. Measurement markers are made according to this particle size, and their diameter is required not to exceed 1 / 3 of the width of the ore pass opening and not to exceed 1 / 5 of the diameter of the ore pass, so as to ensure that the measurement markers can effectively pass through the ore pass opening.

[0019] The measuring marker mechanism is made from waste tires with a diameter equal to or close to the maximum particle size of the ore entering the shaft. The elasticity and wear resistance of the waste tires prevent them from being broken or deformed during ore passage in the shaft, thus preserving their measuring purpose.

[0020] Thirty-six evenly spaced 3.5mm diameter holes were drilled on both sides of the selected tire body's airtight layer. The holes were then securely tied with No. 10 iron wire from top to bottom. The interior was densely filled with crushed stone with a particle size of less than 300mm, and a 150mm wide rubber pad was placed inside the wire binding area to prevent spillage. After the device was filled with ore filler, its density was made close to that of the ore entering the shaft, ensuring that the device and the ore falling at approximately the same speed, thus guaranteeing the accuracy of ore storage measurement.

[0021] Clean the surface of the tires of dirt and oil, apply glue, and wrap thick reflective tape around the tires to improve their visibility in the ore.

Claims

1. A device for measuring the ore reserves in a ore pass, comprising an ore pass, a control room, a transport roadway, an ore discharge chamber, and a ore transport track, characterized in that: The ore chute (1) is provided with an ore layer (2) and a measuring marker mechanism (3). The measuring marker mechanism (3) is located in the ore layer (2). The measuring marker mechanism (3) includes a steel wire rope and a tire body (4) connected to the steel wire rope. The inner ring of the tire body (4) is open. Several sets of tying holes (5) are provided on the upper and lower surfaces of the open end. A tying wire (6) is passed through the tying hole (5). A soft pad (7) is provided on the inner side of the tying wire (6) to close the open end. An ore filling layer (8) is provided in the soft pad (7) and the tire body (4). A reflective sticker (9) is provided on the outer wall of the tire body (4). A lighting mechanism (11) and a camera mechanism (12) are installed in the transport lane (10); An observation window (14) is provided on the wall connecting the ore-discharging chamber (13) and the transport roadway (10); A track scale (16) is installed on the ore transport track (15), and the track scale (16) is connected to the computer in the control room.

2. The ore pass inventory measuring device of claim 1, wherein: The diameter of the tire body (4) is not greater than 1 / 3 of the width of the ore outlet of the ore pass (1) and not greater than 1 / 5 of the diameter of the ore pass (1).

3. The ore pass inventory measuring device of claim 1, wherein: The number of binding holes (5) is 36, and the diameter of the holes is 3.5 mm.

4. The ore pass inventory measuring device of claim 1, wherein: The ore filling layer (8) uses crushed stone with a particle size of less than 300 mm.

5. The ore pass inventory measuring device of claim 1, wherein: The pad (7) is made of rubber and has a width of 150mm.

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