Carbon reduction benefit calculation method for zero-carbon mine energy recycling

Abstract

The invention relates to a carbon reduction benefit calculation method for zero-carbon mine energy recycling, and belongs to the technical field of mine engineering. The method specifically comprises the following steps of: a, constructing a mine characteristic database, and b, calculating the benefit of carbon reduction of various energy sources of the mine by utilizing a formula # imgabs0 #. C, calculating a carbon reduction benefit optimal scheme for recycling various energy sources by utilizing a formula # imgabs1 #; according to the invention, mine characteristic data can be analyzed, the carbon reduction benefit of various energy recycling can be calculated, and the energy utilization rate can be improved.

Description

Technical Field

[0001] The invention relates to a method for calculating carbon reduction benefits of zero-carbon mine energy reuse, and belongs to the technical field of mine engineering. Background Art

[0002] At present, there are many types of energy in mines, and the methods of using various types of energy are completely different. If various types of energy such as air compressor waste heat, mine return air, low-concentration gas, underground wastewater, photovoltaic solar energy, wind power, etc. can be fully and reasonably utilized, it will significantly support the green and low-carbon transformation of zero-carbon mines. In this context, according to the characteristics of coal mines themselves, the carbon reduction benefits of various types of coal mine reusable energy are analyzed and calculated, so as to timely adjust the use of various types of reusable energy and realize the full and efficient use of specific coal mine projects for their own objective conditions and various types of reusable energy.

[0003] Existing research and application of energy recycling in zero-carbon mines mainly focuses on optimizing the efficiency of recycling a single type of energy, such as continuously optimizing the facility structure of air compressor waste heat recycling and geothermal resource recycling to improve utilization efficiency, etc. Obviously, this type of technology fails to consider the comprehensive utilization of various potential energy sources in mines. Summary of the invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a method for calculating the carbon reduction benefits of energy reuse in zero-carbon mines, which can analyze mine characteristic data and calculate the carbon reduction benefits of various energy reuses.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is a method for calculating the carbon reduction benefits of zero-carbon mine energy recycling, which is operated according to the following steps: a. Build a mine feature database, the feature data includes: is the gas concentration, is the gas flow rate, To do work for the air compressor, is the heat recovery ratio of the air compressor, is the return air temperature, For the return air volume, is the underground wastewater temperature, For water flow, To estimate wind speed, To estimate the sunshine duration; The area of ​​mining land, The surface industrial site area, is the photovoltaic available area; b. Use the formula Calculate the carbon reduction benefits of various energy sources in the mine, where E is the carbon reduction benefit and X is the expected power generation. is the local carbon emission factor of the mine, Operating costs for energy reuse; c. Reuse formula Calculate the optimal carbon reduction benefits of various energy reuse options, including: Operating costs for energy reuse, is the number of each type of recycled energy, Budget for the mine in its current state, The value range is 1≤ ≤ , For the The operating cost of recycling energy, For the The biggest carbon reduction benefit of this type of energy, For the front Select several types of recycled energy with a budget of The maximum carbon reduction benefit that can be obtained.

[0006] Preferably, the calculation formula for wind energy carbon reduction benefits is: , To estimate wind speed, is the wind power conversion coefficient, is the local carbon emission factor of the mine, The operating cost of wind power generation.

[0007] Preferably, the calculation formula for photovoltaic carbon reduction benefits is: ,in To estimate the sunshine duration, is the photovoltaic available area, is the photoelectric conversion coefficient, is the local carbon emission factor of the mine, The operating cost of photovoltaic power generation.

[0008] Preferably, the calculation formula for the carbon reduction benefit of low-concentration gas is: ,in is the gas concentration, is the gas flow rate, is the gas-to-electricity conversion factor, is the local carbon emission factor of the mine, Recover operating costs for low-concentration gas.

[0009] Preferably, the calculation formula for the carbon reduction benefit of air compressor waste heat recovery is: ,in To do work for the air compressor, is the heat recovery ratio of the air compressor, is the air compressor thermoelectric conversion coefficient, is the local carbon emission factor of the mine, It is the operating cost of waste heat recovery of air compressor.

[0010] Preferably, the calculation formula for the carbon reduction benefit of mine return air waste heat is: ,in is the return air temperature, is the return air volume, is the return air thermal-electric conversion coefficient, is the local carbon emission factor of the mine, It is the operating cost of return air waste heat recovery.

[0011] Preferably, the calculation formula for the carbon reduction benefit of underground wastewater waste heat is: ,in is the underground wastewater temperature, is the water flow rate, is the wastewater thermal-electric conversion coefficient, is the local carbon emission factor of the mine, It is the operating cost of wastewater waste heat recovery.

[0012] Compared with the prior art, the present invention has the following technical effects: the present invention constructs a mine characteristic database for the energy reuse problem in zero-carbon mines, and then predicts and calculates the potential carbon reduction benefits of various types of reusable energy in mines through an energy carbon reduction benefit calculation model, and finally calculates the optimal solution for carbon reduction benefits of various types of reusable energy under the total budget constraint of reusable energy operation through a dynamic programming algorithm, thereby supporting the adjustment of the use of various types of reusable energy. The scientificity and accuracy of the selection of various types of reusable energy in zero-carbon mines are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the carbon reduction benefit model architecture of the present invention. DETAILED DESCRIPTION

[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] like Figure 1 As shown in the figure, a method for calculating the carbon reduction benefits of zero-carbon mine energy reuse is performed according to the following steps: a. Build a mine feature database, the feature data includes: is the gas concentration, is the gas flow rate, To do work for the air compressor, is the heat recovery ratio of the air compressor, is the return air temperature, For the return air volume, is the underground wastewater temperature, For water flow, To estimate wind speed, To estimate the sunshine duration; The area of ​​mining land, The surface industrial site area, is the photovoltaic available area; b. Use the formula Calculate the carbon reduction benefits of various energy sources in the mine, where E is the carbon reduction benefit and X is the expected power generation. is the local carbon emission factor of the mine, operating costs for energy reuse; c. Reuse formula Calculate the optimal carbon reduction benefits of various energy reuse options, including: Operating costs for energy reuse, is the number of each type of recycled energy, Budget for the mine in its current state, The value range is 1≤ ≤ , For the The operating cost of recycling energy, For the The biggest carbon reduction benefit of this type of energy, For the front Select several types of recycled energy with a budget of The maximum carbon reduction benefit that can be obtained.

[0016] The calculation formula for wind energy carbon reduction benefits is: , To estimate wind speed, is the wind power conversion coefficient, is the local carbon emission factor of the mine, For wind power generation operating costs; The calculation formula for photovoltaic carbon reduction benefits is: ,in To estimate the sunshine duration, is the photovoltaic available area, is the photoelectric conversion coefficient, is the local carbon emission factor of the mine, The operating cost of photovoltaic power generation; The calculation formula for the carbon reduction benefit of low-concentration gas is: ,in is the gas concentration, is the gas flow rate, is the gas-to-electricity conversion factor, is the local carbon emission factor of the mine, Recover operating costs for low-concentration gas; The calculation formula for the carbon reduction benefit of air compressor waste heat recovery is: ,in To do work for the air compressor, is the heat recovery ratio of the air compressor, is the air compressor thermoelectric conversion coefficient, is the local carbon emission factor of the mine, The operating cost of waste heat recovery for air compressor; The calculation formula for the carbon reduction benefit of mine return air waste heat is: ,in is the return air temperature, is the return air volume, is the return air thermal-electric conversion coefficient, is the local carbon emission factor of the mine, The operating cost of waste heat recovery for return air; The calculation formula for the carbon reduction benefit of waste heat from underground wastewater is: ,in is the underground wastewater temperature, is the water flow rate, is the wastewater thermal-electric conversion coefficient, is the local carbon emission factor of the mine, It is the operating cost of wastewater waste heat recovery.

[0017] When it comes to specific energy utilization, For There are two situations for energy sources: If you choose not to use this type of energy, the problem turns into Energy budget for mines The maximum carbon reduction benefit is ; If we choose to use this type of energy, the problem becomes Energy budget for mines The maximum carbon reduction benefit is (in For the operating costs of recycling energy), plus the maximum carbon reduction benefits of current energy sources The larger benefit value of the two options is The above calculation for each type of energy can be used to obtain the total operating budget of the mine with renewable energy in the specified range. Under such circumstances, the optimal result of carbon reduction benefit of various types of energy reuse can be achieved, so as to timely adjust the use of various types of renewable energy.

[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A method for calculating carbon reduction benefits of zero-carbon mine energy reuse, characterized by: Follow the steps below, a. Build a mine feature database, the feature data includes: is the gas concentration, is the gas flow rate, To do work for the air compressor, is the heat recovery ratio of the air compressor, is the return air temperature, For the return air volume, is the underground wastewater temperature, For water flow, To estimate wind speed, To estimate the sunshine duration; The area of ​​mining land, The surface industrial site area, is the photovoltaic available area; b. Use the formula Calculate the carbon reduction benefits of various energy sources in the mine, where E is the carbon reduction benefit and X is the expected power generation. is the local carbon emission factor of the mine, operating costs for energy reuse; c. Reuse formula Calculate the optimal carbon reduction benefits of various energy reuse options, including: Operating costs for energy reuse, is the number of each type of recycled energy, Budget for the mine in its current state, The value range is 1≤ ≤ , For the The operating cost of recycling energy, For the The biggest carbon reduction benefit of this type of energy, For the front Select several types of recycled energy with a budget of The maximum carbon reduction benefit that can be obtained.

2. The method for calculating carbon reduction benefits of zero-carbon mine energy reuse according to claim 1 is characterized in that: The calculation formula for wind energy carbon reduction benefits is: , To estimate wind speed, is the wind power conversion coefficient, is the local carbon emission factor of the mine, The operating cost of wind power generation.

3. The carbon reduction benefit calculation method for zero-carbon mine energy reuse according to claim 1 is characterized by: The calculation formula for photovoltaic carbon reduction benefits is: ,in To estimate the sunshine duration, is the photovoltaic available area, is the photoelectric conversion coefficient, is the local carbon emission factor of the mine, The operating cost of photovoltaic power generation.

4. The carbon reduction benefit calculation method for zero-carbon mine energy reuse according to claim 1 is characterized by: The calculation formula for the carbon reduction benefit of low-concentration gas is: ,in is the gas concentration, is the gas flow rate, is the gas-to-electricity conversion factor, is the local carbon emission factor of the mine, Recover operating costs for low-concentration gas.

5. The carbon reduction benefit calculation method for zero-carbon mine energy reuse according to claim 1 is characterized by: The calculation formula for the carbon reduction benefit of air compressor waste heat recovery is: ,in To do work for the air compressor, is the heat recovery ratio of the air compressor, is the air compressor thermoelectric conversion coefficient, is the local carbon emission factor of the mine, It is the operating cost of waste heat recovery of air compressor.

6. The method for calculating carbon reduction benefits of zero-carbon mine energy reuse according to claim 1 is characterized in that: The calculation formula for the carbon reduction benefit of mine return air waste heat is: ,in is the return air temperature, is the return air volume, is the return air thermal-electric conversion coefficient, is the local carbon emission factor of the mine, It is the operating cost of return air waste heat recovery.

7. The method for calculating carbon reduction benefits of zero-carbon mine energy reuse according to claim 1 is characterized in that: The calculation formula for the carbon reduction benefit of waste heat from underground wastewater is: ,in is the underground wastewater temperature, is the water flow rate, is the wastewater thermal-electric conversion coefficient, is the local carbon emission factor of the mine, It is the operating cost of wastewater waste heat recovery.

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