Method for determining structural parameters and arrangement number of coal mine round vertical shaft bottom coal bunker

Abstract

The invention discloses a method for determining structural parameters and arrangement quantity of a coal mine circular vertical shaft bottom coal bunker. The method comprises the following steps: step 1, calculating a designed daily output Amc; 2, calculating the total effective capacity Q of the coal bunker required by the coal mine; 3, initial structure parameters of the round vertical shaft bottom coal bunker are determined; 4, calculating the effective capacity of the coal bunker section; 5, the effective capacity Qmc of the shaft bottom coal bunker is calculated; step 6, calculating the number n of required shaft bottom coal bunkers; and 7, verifying the structural parameters and quantity of the shaft bottom coal bunker, adjusting the structural parameters of the circular vertical shaft bottom coal bunker, and calculating until the requirements are met. The method for determining the structure parameters and the arrangement number solves the problems that when an existing shaft bottom coal bunker is designed, the structure parameters and the number of the shaft bottom coal bunker are determined through analogy or experience, and the required total effective capacity of the shaft bottom coal bunker and the effective capacity of the designed shaft bottom coal bunker are not calculated in detail according to the design production capacity; and the effective capacity of the shaft bottom coal bunker is insufficient in the early-stage design process.

Description

Technical Field

[0001] This invention belongs to the field of coal mine design technology, specifically relating to a method for determining the structural parameters and arrangement quantity of circular vertical coal bunkers at the bottom of coal mines. Background Technology

[0002] As a crucial component of the coal transportation system, the bottom coal bunker plays a vital role in the continuous and efficient operation of the entire production system and the continuous coal output from the working face. The bottom coal bunker can compensate for uneven coal flow at different transportation stages, accommodate coal volumes during short-term transportation interruptions and blockages to avoid losses caused by temporary transportation failures, and maximize the utilization of the entire mine's transportation and hoisting system capacity, preventing overload and excessive operation of the transportation system. Currently, when designing bottom coal bunkers, structural parameters and quantities are often determined through analogy or experience, without detailed calculations of the required total effective capacity and the designed effective capacity of the bottom coal bunker based on the designed production capacity. This leads to insufficient effective capacity of the bottom coal bunker during the initial design phase, and after the mine is handed over for production, problems of coal output failure due to localized transportation failures frequently occur. This invention aims to solve this problem. Summary of the Invention

[0003] The purpose of this invention is to provide a method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines. This method solves the problem that in the existing design of coal bunkers, the structural parameters and quantity of coal bunkers are determined by analogy or experience, without detailed calculation of the required total effective capacity and the designed effective capacity of the coal bunkers based on the designed production capacity, which leads to insufficient effective capacity of the coal bunkers in the early design process.

[0004] The technical solution adopted in this invention is a method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines, comprising the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Step 2: Based on the designed daily output A mc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Qmc Calculate the required number of coal bunkers at the bottom of the mine. n ; Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements.

[0005] The invention is further characterized by: Step 1 specifically involves calculating the designed daily output based on formula (1). A mc ; (1); in, A The designed production capacity of the coal mine, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 330 represents the 330 normal working days per year according to the design specifications.

[0006] Step 2 specifically involves calculating the total effective capacity of the coal bunker required by the coal mine according to formula (2). Q ; (2); in, Q The total effective capacity of the required coal bunker, in tons (t). A mc The design daily output of the mine is expressed in tons; 0.15~0.25 is a coefficient, with smaller values ​​for large mines and larger values ​​for small mines.

[0007] In step 3, the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft include the net diameter and net height of the cap section, the net diameter and net height of the normal section, the width and height of the bottom section, and the density of loose coal in the bunker.

[0008] The effective capacity of the coal bunker section in step 4 includes the effective capacity of the bunker cap section. Q 1. Calculate the effective capacity of the normal section Q 2. Estimated effective capacity of the bottom section of the warehouse Q 3.

[0009] Calculating the effective capacity of the warehouse cap section Q 1. Calculate according to formula (3); (3); Calculate the effective capacity of the normal section Q 2. Calculate according to formula (4); (4); Estimated effective capacity of the bottom section of the warehouse Q 3. Calculate according to formula (5); (5); in,ρ Density of loose coal in the coal bunker, unit: t / m³ 3 ; D 1 represents the net diameter of the cap section, in meters (m). D 2 represents the net diameter of the normal section, in meters (m). D 3 represents the width of the tapered section on one side of the bottom section, in meters. D 4 represents the width of the tapered section on the other side of the bottom section, in meters. H 1 represents the net height of the upper part of the cap section, in meters (m). H 2 represents the net height of the lower part of the cap section, in meters. H 3 represents the net height on one side of the normal section, in meters (m). H 4 represents the height of the tapered section on one side of the bottom section, in meters. H 5 represents the net height on the other side of the normal section, in meters (m). H 6 represents the height of the other side of the bottom section of the warehouse, in meters.

[0010] Step 5 specifically involves calculating the current effective capacity of the bottom coal bunker according to formula (6) based on the effective capacity of the coal bunker section. Q mc ; (6); in, Q mc The effective capacity of a single current coal bunker at the bottom of the mine, in tons (t). Q 1 represents the effective capacity of the warehouse cap section, in tons. Q 2 represents the effective capacity calculated for the normal section, in tons (t). Q 3 represents the estimated effective capacity of the bottom section of the warehouse, in tons.

[0011] Step 6 specifically involves: determining the required total effective capacity of the coal bunker. Q With the current effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine according to formula (7). n ; (7); in, Q The total effective capacity of the required coal bunker, in tons (t). Q mc The effective capacity of a single current coal bunker at the bottom of the mine, in tons.

[0012] Step 7 specifically involves verifying the structural parameters and quantity of the coal bunker at the bottom of the shaft. If the structural parameters and quantity of the coal bunker at the bottom of the shaft do not meet the design requirements, the structural parameters of the circular vertical coal bunker at the bottom of the shaft are readjusted and calculated until the requirements are met. The beneficial effects of this invention are: This invention provides a method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines. The method determines the required total effective capacity of the coal bunkers based on the designed production capacity, and then calculates the effective capacity of the coal bunkers in detail based on the initially determined structural parameters, thereby determining the number of coal bunkers. If the result does not meet the design requirements, the structural parameters of the coal bunkers can be readjusted and recalculated until the design requirements are met. This method solves the problem of insufficient effective capacity of the coal bunkers in the early design stages, which is often caused by determining the structural parameters and quantity of coal bunkers through analogy or experience. This method is beneficial for improving design quality and the stability of the underground transportation system. Attached Figure Description

[0013] Figure 1 This is a flowchart of the method for determining the structural parameters and arrangement quantity of circular vertical coal bunkers at the bottom of coal mines according to the present invention; Figure 2 This is a schematic diagram of the circular vertical coal bunker structure in embodiment 6 of the present invention. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0015] Example 1 The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines proposed in this embodiment is as follows: Figure 1 As shown, it includes the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Step 2: Based on the designed daily output A mc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine. n ; Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements.

[0016] Example 2 The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines proposed in this embodiment is as follows: Figure 1 As shown, it includes the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Specifically, the designed daily output is calculated according to formula (1). A mc ; (1); in, A The designed production capacity of the coal mine, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 330 represents the 330 normal working days per year according to the design specifications. Step 2: Based on the designed daily output A mc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Specifically, the total effective capacity of the coal bunker required by the coal mine is calculated according to formula (2). Q ; (2); in, Q The total effective capacity of the required coal bunker, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 0.15~0.25 is a coefficient, with smaller values ​​for large mines and larger values ​​for small mines. Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine. n ; Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements.

[0017] Example 3 The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines proposed in this embodiment is as follows: Figure 1 As shown, it includes the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Specifically, the designed daily output is calculated according to formula (1). A mc ; (1); in, A The designed production capacity of the coal mine, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 330 represents the 330 normal working days per year according to the design specifications. Step 2: Based on the designed daily output A mc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Specifically, the total effective capacity of the coal bunker required by the coal mine is calculated according to formula (2). Q ; (2); in, Q The total effective capacity of the required coal bunker, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 0.15~0.25 is a coefficient, with smaller values ​​for large mines and larger values ​​for small mines. Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; The preliminary structural parameters of the circular vertical coal bunker include the net diameter and net height of the cap section, the net diameter and net height of the normal section, the width and height of the bottom section, and the density of loose coal in the bunker. Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine. n ; Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements.

[0018] Example 4 The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines proposed in this embodiment is as follows: Figure 1As shown, it includes the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Specifically, the designed daily output is calculated according to formula (1). A mc ; (1); in, A The designed production capacity of the coal mine, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 330 represents the 330 normal working days per year according to the design specifications. Step 2: Based on the designed daily output A mc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Specifically, the total effective capacity of the coal bunker required by the coal mine is calculated according to formula (2). Q ; (2); in, Q The total effective capacity of the required coal bunker, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 0.15~0.25 is a coefficient, with smaller values ​​for large mines and larger values ​​for small mines. Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; The preliminary structural parameters of the circular vertical coal bunker include the net diameter and net height of the cap section, the net diameter and net height of the normal section, the width and height of the bottom section, and the density of loose coal in the bunker. Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; The effective capacity of the coal bunker section includes the effective capacity of the bunker cap section. Q 1. Calculate the effective capacity of the normal section Q 2. Estimated effective capacity of the bottom section of the warehouse Q 3; Calculating the effective capacity of the warehouse cap section Q 1. Calculate according to formula (3); (3); Calculate the effective capacity of the normal section Q 2. Calculate according to formula (4); (4); Estimated effective capacity of the bottom section of the warehouse Q 3. Calculate according to formula (5); (5); in, ρ Density of loose coal in the coal bunker, unit: t / m³ 3 ; D 1 represents the net diameter of the cap section, in meters (m). D 2 represents the net diameter of the normal section, in meters (m). D 3 represents the width of the tapered section on one side of the bottom section, in meters. D 4 represents the width of the tapered section on the other side of the bottom section, in meters. H 1 represents the net height of the upper part of the cap section, in meters (m). H 2 represents the net height of the lower part of the cap section, in meters. H 3 represents the net height on one side of the normal section, in meters (m). H 4 represents the height of the tapered section on one side of the bottom section, in meters. H 5 represents the net height on the other side of the normal section, in meters (m). H 6 represents the height of the other side of the bottom section of the warehouse, in meters (m). Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine. n ; Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements.

[0019] Example 5 The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines proposed in this embodiment is as follows: Figure 1 As shown, it includes the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Specifically, the designed daily output is calculated according to formula (1). A mc ; (1); in, A The designed production capacity of the coal mine, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 330 represents the 330 normal working days per year according to the design specifications. Step 2: Based on the designed daily output Amc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Specifically, the total effective capacity of the coal bunker required by the coal mine is calculated according to formula (2). Q ; (2); in, Q The total effective capacity of the required coal bunker, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 0.15~0.25 is a coefficient, with smaller values ​​for large mines and larger values ​​for small mines. Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; The preliminary structural parameters of the circular vertical coal bunker include the net diameter and net height of the cap section, the net diameter and net height of the normal section, the width and height of the bottom section, and the density of loose coal in the bunker. Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; The effective capacity of the coal bunker section includes the effective capacity of the bunker cap section. Q 1. Calculate the effective capacity of the normal section Q 2. Estimated effective capacity of the bottom section of the warehouse Q 3; Calculating the effective capacity of the warehouse cap section Q 1. Calculate according to formula (3); (3); Calculate the effective capacity of the normal section Q 2. Calculate according to formula (4); (4); Estimated effective capacity of the bottom section of the warehouse Q 3. Calculate according to formula (5); (5); in, ρ Density of loose coal in the coal bunker, unit: t / m³ 3 ; D 1 represents the net diameter of the cap section, in meters (m). D 2 represents the net diameter of the normal section, in meters (m). D 3 represents the width of the tapered section on one side of the bottom section, in meters. D 4 represents the width of the tapered section on the other side of the bottom section, in meters. H 1 represents the net height of the upper part of the cap section, in meters (m). H 2 represents the net height of the lower part of the cap section, in meters. H 3 represents the net height on one side of the normal section, in meters (m). H 4 represents the height of the tapered section on one side of the bottom section, in meters. H5 represents the net height on the other side of the normal section, in meters (m). H 6 represents the height of the other side of the bottom section of the warehouse, in meters (m). Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Specifically, based on the effective capacity of the coal bunker section, the current effective capacity of the bottom coal bunker is calculated according to formula (6). Q mc ; (6); in, Q mc The effective capacity of a single current coal bunker at the bottom of the mine, in tons (t). Q 1 represents the effective capacity of the warehouse cap section, in tons. Q 2 represents the effective capacity calculated for the normal section, in tons (t). Q 3 represents the estimated effective capacity of the bottom section of the warehouse, in tons. Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine. n ; Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements.

[0020] Example 6 The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines proposed in this embodiment is as follows: Figure 1 As shown, it includes the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Specifically, the designed daily output is calculated according to formula (1). A mc ; (1); in, A The designed production capacity of the coal mine, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 330 represents the 330 normal working days per year according to the design specifications. Step 2: Based on the designed daily output A mc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Specifically, the total effective capacity of the coal bunker required by the coal mine is calculated according to formula (2). Q ; (2); in, Q The total effective capacity of the required coal bunker, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 0.15~0.25 is a coefficient, with smaller values ​​for large mines and larger values ​​for small mines. Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; The preliminary structural parameters of the circular vertical coal bunker include the net diameter and net height of the cap section, the net diameter and net height of the normal section, the width and height of the bottom section, and the density of loose coal in the bunker. Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; like Figure 2 As shown, the effective capacity of the coal bunker section includes the calculated effective capacity of the bunker cap section. Q 1. Calculate the effective capacity of the normal section Q 2. Estimated effective capacity of the bottom section of the warehouse Q 3; Calculating the effective capacity of the warehouse cap section Q 1. Calculate according to formula (3); (3); Calculate the effective capacity of the normal section Q 2. Calculate according to formula (4); (4); Estimated effective capacity of the bottom section of the warehouse Q 3. Calculate according to formula (5); (5); in, ρ Density of loose coal in the coal bunker, unit: t / m³ 3 ; D 1 represents the net diameter of the cap section, in meters (m). D 2 represents the net diameter of the normal section, in meters (m). D 3 represents the width of the tapered section on one side of the bottom section, in meters. D 4 represents the width of the tapered section on the other side of the bottom section, in meters. H 1 represents the net height of the upper part of the cap section, in meters (m). H 2 represents the net height of the lower part of the cap section, in meters. H 3 represents the net height on one side of the normal section, in meters (m). H 4 represents the height of the tapered section on one side of the bottom section, in meters. H 5 represents the net height on the other side of the normal section, in meters (m). H6 represents the height of the other side of the bottom section of the warehouse, in meters (m). Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Specifically, based on the effective capacity of the coal bunker section, the current effective capacity of the bottom coal bunker is calculated according to formula (6). Q mc ; (6); in, Q mc The effective capacity of a single current coal bunker at the bottom of the mine, in tons (t). Q 1 represents the effective capacity of the warehouse cap section, in tons. Q 2 represents the effective capacity calculated for the normal section, in tons (t). Q 3 represents the estimated effective capacity of the bottom section of the warehouse, in tons. Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine. n ; Specifically, based on the required total effective capacity of the coal bunker. Q With the current effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine according to formula (7). n ; (7); in, Q The total effective capacity of the required coal bunker, in tons (t). Q mc The effective capacity of a single current coal bunker at the bottom of the mine, in tons (t). Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements; Specifically, the process involves verifying the structural parameters and quantity of the coal bunker at the bottom of the shaft. If the structural parameters and quantity of the coal bunker at the bottom of the shaft do not meet the design requirements, the structural parameters of the circular vertical coal bunker at the bottom of the shaft are readjusted and calculated until the requirements are met.

Claims

1. A method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines, characterized in that... Includes the following steps: Step 1: Based on the coal mine's designed production capacity A Calculate the designed daily output A mc ; Step 2: Based on the designed daily output A mc Calculate the total effective capacity of the coal bunkers required for the coal mine. Q ; Step 3: Determine the preliminary structural parameters of the circular vertical coal bunker at the bottom of the shaft; Step 4: Calculate the effective capacity of the coal bunker section based on the preliminary structural parameters; Step 5: Calculate the effective capacity of the bottom coal bunker based on the effective capacity of the coal bunker section. Q mc ; Step 6: Based on the required total effective capacity of the coal bunker Q With the effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine. n ; Step 7: Verify the structural parameters and quantity of the bottom coal bunker, adjust and calculate the structural parameters of the circular vertical bottom coal bunker until they meet the requirements.

2. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 1, characterized in that, Step 1 specifically involves: calculating the designed daily output according to formula (1). A mc ; （1）； in, A The designed production capacity of the coal mine, in tons (t). A mc The design daily output of the mine is expressed in tons (t); 330 represents the 330 normal working days per year according to the design specifications.

3. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 1, characterized in that, Step 2 specifically involves calculating the total effective capacity of the coal bunker required by the coal mine according to formula (2). Q ; （2）； in, Q The total effective capacity of the required coal bunker, in tons (t). A mc The design daily output of the mine is expressed in tons; 0.15~0.25 is a coefficient, with smaller values ​​for large mines and larger values ​​for small mines.

4. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 1, characterized in that, The preliminary structural parameters of the circular vertical coal bunker mentioned in step 3 include the net diameter and net height of the cap section, the net diameter and net height of the normal section, the width and height of the bottom section, and the density of loose coal in the bunker.

5. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 1, characterized in that, The effective capacity of the coal bunker section mentioned in step 4 includes the calculated effective capacity of the bunker cap section. Q 1. Calculate the effective capacity of the normal section Q 2. Estimated effective capacity of the bottom section of the warehouse Q 3.

6. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 5, characterized in that, The effective capacity of the cap section is calculated. Q 1. Calculate according to formula (3); （3）； The normal segment calculates the effective capacity. Q 2. Calculate according to formula (4); （4）； The estimated effective capacity of the bottom section of the warehouse Q 3. Calculate according to formula (5); （5）； in, ρ Density of loose coal in the coal bunker, unit: t / m³ 3 ; D 1 represents the net diameter of the cap section, in meters (m). D 2 represents the net diameter of the normal section, in meters (m). D 3 represents the width of the tapered section on one side of the bottom section, in meters. D 4 represents the width of the tapered section on the other side of the bottom section, in meters. H 1 represents the net height of the upper part of the cap section, in meters (m). H 2 represents the net height of the lower part of the cap section, in meters. H 3 represents the net height on one side of the normal section, in meters (m). H 4 represents the height of the tapered section on one side of the bottom section, in meters. H 5 represents the net height on the other side of the normal section, in meters (m). H 6 represents the height of the other side of the bottom section of the warehouse, in meters.

7. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 1, characterized in that, Step 5 specifically involves: calculating the current effective capacity of the coal bunker at the bottom of the shaft according to formula (6) based on the effective capacity of the coal bunker section. Q mc ; （6）； in, Q mc The effective capacity of a single current coal bunker at the bottom of the mine, in tons (t). Q 1 represents the effective capacity of the warehouse cap section, in tons. Q 2 represents the effective capacity calculated for the normal section, in tons (t). Q 3 represents the estimated effective capacity of the bottom section of the warehouse, in tons.

8. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 1, characterized in that, Step 6 specifically involves: determining the required total effective capacity of the coal bunker. Q With the current effective capacity of the coal bunker at the bottom of the mine Q mc Calculate the required number of coal bunkers at the bottom of the mine according to formula (7). n ; （7）； in, Q The total effective capacity of the required coal bunker, in tons (t). Q mc The effective capacity of a single current coal bunker at the bottom of the mine, in tons.

9. The method for determining the structural parameters and quantity of circular vertical coal bunkers at the bottom of coal mines according to claim 1, characterized in that, Step 7 specifically involves: verifying the structural parameters and quantity of the coal bunker at the bottom of the shaft. If the structural parameters and quantity of the coal bunker at the bottom of the shaft do not meet the design requirements, readjust and calculate the structural parameters of the circular vertical coal bunker at the bottom of the shaft until the requirements are met.

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