Steelmaking system using hydrogen-enriched blast furnace based on energy-mass conversion and its production control method

Abstract

The hydrogen-enriched blast furnace steelmaking system is based on energy-to-mass conversion and includes an electrolytic water system (2), the electrolytic water system (2) is connected to a hydrogen storage tank (3) and an oxygen storage tank (4), the gas outlet of the hydrogen storage tank (3) is connected to a hydrogen compressor (5), the outlet of the hydrogen compressor (5) is connected to a hydrogen buffer tank (6), the hydrogen buffer tank (6) is connected to a group of hydrogen injection valves (7), the group of hydrogen injection valves (7) is connected to a hydrogen preheating system (8), and the hydrogen preheating system (8) is connected to a tuyere of the blast furnace body (1) or a hydrogen injection device at the bottom of the furnace body.

Description

[Technical Field]

[0001] The present invention relates to the technical field of hydrogen-enriched low-carbon smelting in blast furnaces in the steel metallurgical process, and more particularly to a hydrogen-enriched blast furnace ironmaking system based on energy-mass conversion and its production control method. [Background technology]

[0002] Coke and pulverized coal are important sources of heat and reducing agent in the blast furnace steelmaking process. Until now, the average coke ratio per ton of steel in China's steelmaking process was 355.48 kg, and the coal ratio was more than 150 kg. However, global inflationary pressures have continued to rise, and major commodity markets both inside and outside China have been fluctuating sharply. Prices of blast furnace smelting raw materials, particularly caking coal and coke, have risen sharply, significantly impacting production costs in the blast furnace steelmaking process and making operations more difficult for steel companies. At the same time, China has made strategic decisions to address climate change, setting the strategic goals of "carbon neutrality" and "peak carbon dioxide emissions." The steel industry is now facing the constraints of energy assessment targets that require "controlling the total amount and intensity of energy consumption." Furthermore, with the continuous improvement of carbon emissions trading rules and markets across China, steel companies are also seeking to be incorporated into the carbon emissions trading market. Companies with high carbon emissions per unit of product will face even higher carbon and energy usage costs.

[0003] China is the world's largest manufacturer of solar and wind power. In recent years, policies for the solar and wind power industries have been improved, their scale has expanded, and technology has continued to evolve. As a result, the cost of generating electricity from new energy sources has continued to decrease, and in some areas it is even lower than the cost of generating electricity from conventional energy sources. However, structural contradictions between the supply and demand sides of new energy generation have become more pronounced, resulting in the problem of "power wastage due to wind power." During times when new energy generation is concentrated, thermal power generation units in some areas lack the peak shifting function, which affects the safe operation of the power grid and further widens the price gap between peak and valley electricity prices.

[0004] As a clean energy source, hydrogen-enriched blast furnace smelting technology can partially replace the carbonaceous raw materials used in blast furnace smelting, effectively reducing carbon emissions in the steelmaking process and significantly improving the blast furnace's effective utilization factor, achieving significant energy-saving and carbon-reduction effects. How to use new clean electricity or inexpensive electricity during the valley period to perform energy mass conversion to provide a carbon-free reducing agent and heat source for the blast furnace, combined with the corresponding production control process, optimizes the control of hydrogen production power and hydrogen injection volume, achieving a highly efficient and low-cost steelmaking method, and improving the ecological and production management issues caused by the coal-based energy structure, is of great significance for promoting the structural transformation and upgrading of the steel industry.

[0005] Therefore, those skilled in the art are striving to develop hydrogen injection processes that can maximize the economic benefits in blast furnace production. Summary of the Invention [Problem to be solved by the invention]

[0006] In view of the above-mentioned deficiencies of the prior art, the technical problem that the present invention aims to solve is how to maximize the economic effect of injecting hydrogen into a blast furnace. [Means for solving the problem]

[0007] To achieve the above object, the present invention first provides an ironmaking system using a hydrogen-enriched blast furnace based on energy-to-mass conversion, the system comprising an electrolytic water system, the electrolytic water system being respectively connected to a hydrogen storage tank and an oxygen storage tank, the gas outlet of the hydrogen storage tank being connected to a hydrogen compressor, the outlet of the hydrogen compressor being connected to a hydrogen buffer tank, the hydrogen buffer tank being connected to a group of hydrogen injection valves, the group of hydrogen injection valves being connected to a hydrogen preheating system, and the hydrogen preheating system being connected to the tuyere of the blast furnace body or a hydrogen injection device at the bottom of the furnace body.

[0008] Furthermore, the gas outlet of the oxygen storage tank is connected to a group of oxygen injection valves, and the group of oxygen injection valves is connected to a cold air main pipe of the blast furnace body.

[0009] Furthermore, a hydrogen injection amount calculation and control system is further provided, and a control signal from the hydrogen injection amount calculation and control system is connected to the electrolytic water system, the hydrogen injection valve group, and the oxygen injection valve group via a signal transmission line.

[0010] Furthermore, the hydrogen injection amount calculation and control system now determines the amount of hydrogen injection that will have the highest effect on iron per ton through the calculation formula for the economic effect of hydrogen injection, and the calculation formula for the economic effect of hydrogen injection is as follows: JPEG2025530082000002.jpg11170, During the ceremony, B is the effect of iron per ton after hydrogen injection into the blast furnace under current market conditions, in units of yuan / ton of iron (yuan / t); M0 is the coal ratio without hydrogen injection, in kilograms of iron per ton (kg / t); M is the coal ratio when hydrogen is injected, in units of kilograms of iron per ton (kg / t); P M is the price of pulverized coal put into the furnace, in units of yuan / ton of iron (yuan / t); K0 is the coke ratio without hydrogen injection, expressed in kilograms per ton of iron (kg / t); K is the coke ratio when hydrogen is injected, expressed in kilograms per ton of iron (kg / t); P K is the price of coke put into the furnace, in units of yuan / ton of iron (yuan / t), η0 is the blast furnace utilization coefficient when hydrogen is not injected, and its unit is ton / m³ / day [t / (m 3 ·d)], η is the blast furnace utilization coefficient when hydrogen is injected, and its unit is ton / per cubic meter per day [t / (m 3 ·d)], V BF is the effective volume of the blast furnace, in cubic meters (m 3 ) and P PI is the profit per ton of iron, in units of yuan / ton (yuan / t), C0 is the direct CO2 emissions without hydrogen injection, expressed in tonnes per tonne of iron (t / t); C is the direct CO2 emissions when hydrogen is injected, in units of tonnes per tonne of iron (t / t); P CO2 is the carbon emission trading price, with the unit being yuan / ton of iron (yuan / t); E0 is the operating cost of the environmental protection facility per ton of iron without hydrogen injection, with the unit being yuan / ton of iron (yuan / t); E is the operating cost of the environmental protection facility per ton of iron when hydrogen is injected, with the unit being yuan / ton of iron (yuan / t); P H2 is the production price of hydrogen, in units of yuan / standard cubic meter (yuan / Nm 3 ) and H is the amount of hydrogen injected, and its unit is standard cubic meter / ton of iron (Nm 3 / t).

[0011] Additionally, the electrolyzed water system may be installed to be powered using electrical energy produced by solar panels, valley power on the power grid, or wind energy.

[0012] The present invention further provides a method for controlling the production of iron by a hydrogen-enriched blast furnace based on energy-mass conversion, the method comprising: A hydrogen-enriched blast furnace steelmaking system based on energy-mass conversion is provided, the system comprising: an electrolytic water system, the electrolytic water system being connected to a hydrogen storage tank and an oxygen storage tank, the gas outlet of the hydrogen storage tank being connected to a hydrogen compressor, the outlet of the hydrogen compressor being connected to a hydrogen buffer tank, the hydrogen buffer tank being connected to a hydrogen injection valve group, the hydrogen injection valve group being connected to a hydrogen preheating system, the hydrogen preheating system being connected to a tuyere of the blast furnace body or a hydrogen injection device at the bottom of the furnace body, the gas outlet of the oxygen storage tank being connected to a oxygen injection valve group, and the oxygen injection valve group being connected to a cold air main pipe of the blast furnace body; and a hydrogen injection amount calculation and control system, wherein a control signal of the hydrogen injection amount calculation and control system is connected to the electrolytic water system, the hydrogen injection valve group, and the oxygen injection valve group by a signal transmission line; and (2) starting up the electrolytic water system, transporting the hydrogen and oxygen obtained by the electrolytic water system after electrolysis to the hydrogen storage tank and oxygen storage tank, respectively, the hydrogen in the hydrogen storage tank being pressurized by the hydrogen compressor and then entering the hydrogen buffer tank, the pressure and flow rate of which are then adjusted by the hydrogen injection valve group, and the hydrogen being preheated in the hydrogen preheating system, and the preheated hydrogen being injected into the blast furnace by the hydrogen injection device.

[0013] The method further includes a step in which the pressure and flow rate of the oxygen in the oxygen storage tank are adjusted by the oxygen injection valve group, and then the oxygen is blown into the blast furnace through the cold air main pipe.

[0014] Furthermore, the hydrogen injection amount calculation and control system further includes a step of determining the hydrogen injection amount that is most effective per ton of iron according to a calculation formula for the economic effect of hydrogen injection, and then synchronously controlling and adjusting the hydrogen production power in the electrolytic water system and the hydrogen injection amount to the blast furnace according to a control signal, and the calculation formula for the economic effect of hydrogen injection is: JPEG2025530082000003.jpg11170, During the ceremony, B is the effect of iron per ton after hydrogen injection into the blast furnace under current market conditions, in units of yuan / ton of iron (yuan / t); M0 is the coal ratio without hydrogen injection, in kilograms of iron per ton (kg / t); M is the coal ratio when hydrogen is injected, in units of kilograms of iron per ton (kg / t); P M is the price of pulverized coal put into the furnace, in units of yuan / ton of iron (yuan / t); K0 is the coke ratio without hydrogen injection, expressed in kilograms per ton of iron (kg / t); K is the coke ratio when hydrogen is injected, expressed in kilograms per ton of iron (kg / t); P K is the price of coke put into the furnace, in units of yuan / ton of iron (yuan / t), η0 is the blast furnace utilization coefficient when hydrogen is not injected, and its unit is ton / m³ / day [t / (m 3 ·d)], η is the blast furnace utilization coefficient when hydrogen is injected, and its unit is ton / per cubic meter per day [t / (m 3 ·d)], V BF is the effective volume of the blast furnace, in cubic meters (m 3 ) and P PI is the profit per ton of iron, in units of yuan / ton (yuan / t), C0 is the direct CO2 emissions without hydrogen injection, expressed in tonnes per tonne of iron (t / t); C is the direct CO2 emissions when hydrogen is injected, in units of tonnes per tonne of iron (t / t); P CO2 is the carbon emission trading price, with the unit being yuan / ton of iron (yuan / t); E0 is the operating cost of the environmental protection facility per ton of iron without hydrogen injection, with the unit being yuan / ton of iron (yuan / t); E is the operating cost of the environmental protection facility per ton of iron when hydrogen is injected, with the unit being yuan / ton of iron (yuan / t); P H2 is the production price of hydrogen, in units of yuan / standard cubic meter (yuan / Nm 3 ) and H is the amount of hydrogen injected, and its unit is standard cubic meter / ton of iron (Nm 3 / t).

[0015] Additionally, electrical energy produced by solar panels, valley power on the power grid, or wind energy can be used to power the electrolyzed water system.

[0016] Furthermore, the fluctuating raw fuel prices, hydrogen prices, carbon emission taxes and product prices are acquired in real time via a computer network and input into the hydrogen injection amount calculation model of the hydrogen injection amount calculation and control system. [Effects of the Invention]

[0017] In the method of the present invention, an electrolytic water hydrogen production system is built near a steelmaking blast furnace, and the distributed hydrogen source distribution eliminates the need for long-distance, large-scale hydrogen transportation, significantly reducing hydrogen usage costs, improving the safety of hydrogen use, and solving the problems of green power storage and effective collection and disposal. The electrolytic water hydrogen production is directly used in hydrogen metallurgy, effectively reducing carbon emissions in the steelmaking process and significantly improving the effective utilization factor of the blast furnace, resulting in significant energy saving and carbon reduction effects. According to real-time fluctuations in production raw materials, electricity costs, and product selling prices, the production control method adjusts the hydrogen production power in the electrolytic water hydrogen production system and the amount of hydrogen injected into the blast furnace in real time, thereby realizing high-efficiency, low-cost steelmaking using a hydrogen-enriched blast furnace.

[0018] This invention realizes a new process of large-scale economical hydrogen production-hydrogen storage-hydrogen-enriched low-carbon smelting using blast furnaces, promotes the industrial application of blast furnace hydrogen-enriched low-carbon steelmaking technology, large-scale power storage peak shifting and effective collection and disposal technology, achieves significant low-carbonization of blast furnace steelmaking, and enables the steel industry to further significantly reduce CO2 emissions, lays the theoretical and technological foundation for realizing green manufacturing, helps achieve the strategic goal of "peak carbon dioxide emissions and carbon neutrality", and promotes the process of establishing a sustainable low-carbon economic society.

[0019] In order to fully understand the objectives, features and effects of the present invention, the concept, specific structure and technical effects achieved by the present invention will be further described below with reference to the drawings. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic diagram of a hydrogen injection system for a hydrogen-enriched blast furnace according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] In order to make the technical contents clearer and easier to understand, several preferred embodiments of the present invention will be described below with reference to the drawings in the specification. The present invention may be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in this specification.

[0022] As shown in FIG. 1, in this embodiment, the hydrogen injection system for a hydrogen-enriched blast furnace and its production control method according to the present invention is for a blast furnace with an effective volume of 1780 m 3 It is applied to the blast furnace of 1780m 3 blast furnace body, 35,000m 3 Electrolyzed water system with hydrogen production capacity of 50m / h 3 Hydrogen storage tank, oxygen storage tank, hydrogen compressor, withstand voltage 20MPa and volume 50m 3The system includes a hydrogen buffer tank, a group of hydrogen injectors, a hydrogen preheating system capable of heating up to 1000°C, a group of oxygen injectors, and an economical hydrogen injection amount calculation and control system.

[0023] The hydrogen H2 produced by the electrolytic water system 2 is transported to the hydrogen storage tank 3 via pipeline P1, and the oxygen produced is transported to the oxygen storage tank 4 via pipeline P2. The gas outlet of the hydrogen storage tank 3 is connected to the low-pressure connector of the hydrogen compressor 5 via pipeline P3. The pressurized hydrogen passes from the high-pressure connector of the hydrogen compressor 5 through pipeline P4 to the inlet of the hydrogen buffer tank 6. The outlet of the hydrogen buffer tank 6 is connected to the hydrogen injection valve group 7 via pipeline P5. The hydrogen enters the hydrogen preheating system 8 through pipeline P6 after its pressure and flow rate are adjusted. The hydrogen is heated to a set temperature and then transported to the tuyere of the blast furnace body 1 or the hydrogen injection device at the bottom of the furnace body through pipeline P7. The gas outlet of the oxygen storage tank 4 is connected to the oxygen injection valve group 9 via pipeline P8. The oxygen enters the cold air main pipe of the blast furnace body 1 through pipeline P9 after its pressure and flow rate are adjusted. The control signals of the economical hydrogen injection amount calculation and control system are connected to the electrolytic water system 2, the hydrogen injection valve group 7, and the oxygen injection valve group 9 via signal transmission lines.

[0024] Specific implementation steps include the following steps 1 to 3. Step 1: After the blast furnace is operating normally, the electrolytic water hydrogen production device is started up. It is powered by the electric energy produced by the solar panel from 8:00 to 18:00, and by the valley power or wind energy in the power grid for the rest of the time. The purpose is to produce hydrogen and oxygen to be injected into the blast furnace. The injection rate is gradually increased from zero, and the injection rate adjustment step size is 25 Nm. 3 / t iron. At the same time, the conventional operating process parameters of the blast furnace need to be adjusted to ensure the operation of the blast furnace, acceptable product quality and safe operation of the equipment while achieving the maximum carbon reduction and optimal economic effect. The step size of the adjustment of the injection amount is 15 days for the operation time of the blast furnace, and the maximum hydrogen injection amount is 250Nm 3 / t is set as iron. Step 2: After 150 days of hydrogen injection into the blast furnace, the optimal operating parameters for different hydrogen injection amounts and their corresponding operating parameters (including but not limited to hydrogen injection amount, oxygen enrichment rate, coal ratio, blast rate, loading regime of coke and iron-containing materials, etc.) are recorded to establish an operating parameter database for the hydrogen-enriched blast furnace. Step 3: Input the real-time fluctuating raw fuel prices, hydrogen prices, carbon emission taxes, and product prices into the calculation model for the economical hydrogen injection amount, and use the formula for calculating the economic effect of hydrogen injection to obtain the iron effect per ton corresponding to different hydrogen injection amounts currently on the market. The hydrogen injection amount obtained through comparison with the highest iron effect per ton is the economical hydrogen injection amount, and then synchronously adjust the hydrogen production power in the electrolytic water hydrogen production system and the hydrogen injection amount to the blast furnace.

[0025] The formula for calculating the economic benefits of hydrogen injection is: JPEG2025530082000004.jpg11170, During the ceremony, B is the effect of iron per ton after hydrogen injection into the blast furnace under current market conditions, in units of yuan / ton of iron (yuan / t); M0 is the coal ratio without hydrogen injection, in kilograms of iron per ton (kg / t); M is the coal ratio when hydrogen is injected, in units of kilograms of iron per ton (kg / t); P M is the price of pulverized coal put into the furnace, in units of yuan / ton of iron (yuan / t); K0 is the coke ratio without hydrogen injection, expressed in kilograms per ton of iron (kg / t); K is the coke ratio when hydrogen is injected, expressed in kilograms per ton of iron (kg / t); P K is the price of coke put into the furnace, in units of yuan / ton of iron (yuan / t), η0 is the blast furnace utilization coefficient when hydrogen is not injected, and its unit is ton / m³ / day [t / (m3 ·d)], η is the blast furnace utilization coefficient when hydrogen is injected, and its unit is ton / per cubic meter per day [t / (m 3 ·d)], V BF is the effective volume of the blast furnace, in cubic meters (m 3 ) and P PI is the profit per ton of iron, in units of yuan / ton (yuan / t), C0 is the direct CO2 emissions without hydrogen injection, expressed in tonnes per tonne of iron (t / t); C is the direct CO2 emissions when hydrogen is injected, in units of tonnes per tonne of iron (t / t); P CO2 is the carbon emission trading price, with the unit being yuan / ton of iron (yuan / t); E0 is the operating cost of the environmental protection facility per ton of iron without hydrogen injection, with the unit being yuan / ton of iron (yuan / t); E is the operating cost of the environmental protection facility per ton of iron when hydrogen is injected, with the unit being yuan / ton of iron (yuan / t); P H2 is the production price of hydrogen, in units of yuan / standard cubic meter (yuan / Nm 3 ) and H is the amount of hydrogen injected, and its unit is standard cubic meter / ton of iron (Nm 3 / t).

[0026] The above is a detailed description of the preferred specific embodiments of the present invention. It should be understood that those skilled in the art can make various modifications and changes based on the concept of the present invention without any creative effort. Therefore, any technical solutions obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experiments based on the prior art should be included in the scope of protection determined by the claims. [Explanation of symbols]

[0027] 1 Blast furnace body 2. Electrolyzed water hydrogen production system 3 Hydrogen storage tank 4. Oxygen storage tank 5 Hydrogen compressor 6 Hydrogen buffer tank 7 Hydrogen injector group 8 Hydrogen preheating system 9 Oxygen injection valve group 10. Economical hydrogen injection amount calculation and control system

Claims

1. A hydrogen-enriched blast furnace steelmaking system based on energy-to-mass conversion, comprising: The blast furnace is provided with an electrolytic water system, the electrolytic water system being connected to a hydrogen storage tank and an oxygen storage tank, the gas outlet of the hydrogen storage tank being connected to a hydrogen compressor, the outlet of the hydrogen compressor being connected to a hydrogen buffer tank, the hydrogen buffer tank being connected to a group of hydrogen injection valves, the group of hydrogen injection valves being connected to a hydrogen preheating system, and the hydrogen preheating system being connected to a tuyere of the blast furnace body or a hydrogen injection device at the bottom of the furnace body. A hydrogen-enriched blast furnace steelmaking system based on energy-to-mass conversion.

2. 2. The iron-making system using a hydrogen-enriched blast furnace based on energy-to-mass conversion according to claim 1, wherein the gas outlet of the oxygen storage tank is connected to a group of oxygen injection valves, and the group of oxygen injection valves is connected to a cold air main pipe of the blast furnace body.

3. 2. The hydrogen-enriched blast furnace ironmaking system based on energy-to-mass conversion according to claim 1, further comprising a hydrogen injection amount calculation and control system, wherein a control signal from the hydrogen injection amount calculation and control system is connected to the electrolytic water system, the hydrogen injection valve group, and the oxygen injection valve group via a signal transmission line, and the hydrogen production power in the electrolytic water system and the hydrogen injection amount to the blast furnace are synchronously controlled and adjusted by the control signal, thereby obtaining the most effective hydrogen injection amount per ton of iron.

4. The hydrogen injection amount calculation and control system now determines the amount of hydrogen injection that will have the highest effect on iron per ton based on the calculation formula for the economic effect of hydrogen injection. The calculation formula for the economic effect of hydrogen injection is: and During the ceremony, B is the effect of iron per ton after injecting hydrogen into the blast furnace under current market conditions, in units of yuan / ton of iron (yuan / t); M ０ is the coal ratio without hydrogen injection, in kilograms per ton of iron (kg / t); M is the coal ratio when hydrogen is injected, in units of kilograms of iron per ton (kg / t); P Ｍ is the price of pulverized coal put into the furnace, in units of yuan / ton of iron (yuan / t); K ０ is the coke rate without hydrogen injection, in kilograms per ton of iron (kg / t); K is the coke rate when hydrogen is injected, in kilograms per ton of iron (kg / t); P Ｋ is the price of coke put into the furnace, in units of yuan / ton of iron (yuan / t), η ０ is the blast furnace utilization coefficient when hydrogen is not injected, and its unit is ton / per cubic meter per day [t / (m ３ d)], η is the blast furnace utilization coefficient when hydrogen is injected, and its unit is ton / per cubic meter per day [t / (m ３ d)], V ＢＦ is the effective volume of the blast furnace, and its unit is cubic meters (m ３ ) and P ＰＩ is the profit per ton of iron, in units of yuan / ton (yuan / t), C ０ is the CO when hydrogen is not injected ２ is the direct emissions of iron, expressed in tonnes per tonne (t / t), C is CO when hydrogen is injected ２ is the direct emissions of iron, expressed in tonnes per tonne (t / t), P ＣＯ２ is the carbon emission trading price, with the unit being yuan / ton of iron (yuan / t); E ０ is the operating cost of the environmental protection facility per ton of iron without hydrogen injection, in units of yuan / ton of iron (yuan / t); E is the operating cost of the environmental protection facility per ton of iron when hydrogen is injected, with the unit being yuan / ton of iron (yuan / t); P Ｈ２ is the production price of hydrogen, in units of yuan / standard cubic meter (yuan / Nm ３ ) and H is the amount of hydrogen injected, and its unit is standard cubic meter / ton of iron (Nm ３ 4. The hydrogen-enriched blast furnace iron-making system based on energy-to-mass conversion according to claim 3, wherein the hydrogen-enriched blast furnace is 0.1 wt. / t.

5. 2. The hydrogen-enriched blast furnace iron making system based on energy-to-mass conversion according to claim 1, wherein the electrolytic water system is installed to be powered by electrical energy produced by solar panels, or valley power in the power grid, or wind energy.

6. A method for controlling the production of steel using a hydrogen-enriched blast furnace based on energy-to-mass conversion, comprising: A hydrogen-enriched blast furnace ironmaking system based on energy-mass conversion is provided, the system comprising: an electrolytic water system, the electrolytic water system being connected to a hydrogen storage tank and an oxygen storage tank, the gas outlet of the hydrogen storage tank being connected to a hydrogen compressor, the outlet of the hydrogen compressor being connected to a hydrogen buffer tank, the hydrogen buffer tank being connected to a hydrogen injection valve group, the hydrogen injection valve group being connected to a hydrogen preheating system, the hydrogen preheating system being connected to a tuyere of the blast furnace body or a hydrogen injection device at the bottom of the furnace body, the gas outlet of the oxygen storage tank being connected to an oxygen injection valve group, and the oxygen injection valve group being connected to a cold air main pipe of the blast furnace body; and a hydrogen injection amount calculation and control system, wherein a control signal of the hydrogen injection amount calculation and control system is connected to the electrolytic water system, the hydrogen injection valve group, and the oxygen injection valve group by a signal transmission line; Step (2) of starting the electrolytic water system, transporting the hydrogen and oxygen obtained by the electrolytic water system after electrolysis to the hydrogen storage tank and oxygen storage tank, respectively, the hydrogen in the hydrogen storage tank being pressurized by the hydrogen compressor and then entering the hydrogen buffer tank, the pressure and flow rate of which are then adjusted by the hydrogen injection valve group, and the hydrogen being preheated in the hydrogen preheating system, and the preheated hydrogen being injected into the blast furnace by the hydrogen injection device; Step (3) where the hydrogen injection amount calculation and control system synchronizes and adjusts the hydrogen production power in the electrolytic water system and the hydrogen injection amount to the blast furnace through the control signal, thereby obtaining the hydrogen injection amount that is most effective per ton of iron; A method for controlling the production of iron using a hydrogen-enriched blast furnace based on energy-to-mass conversion, comprising:

7. 7. The method for controlling iron production using a hydrogen-enriched blast furnace based on energy-to-mass conversion according to claim 6, further comprising the step of adjusting the pressure and flow rate of the oxygen in the oxygen storage tank by a group of oxygen injection valves and then blowing the oxygen into the blast furnace through the cold air main pipe.

8. The hydrogen injection amount calculation and control system further includes a step of determining the hydrogen injection amount that is most effective per ton of iron according to a calculation formula for the economic effect of hydrogen injection, and then synchronously controlling and adjusting the hydrogen production power in the electrolytic water system and the hydrogen injection amount to the blast furnace according to a control signal, and the calculation formula for the economic effect of hydrogen injection is: and During the ceremony, B is the effect of iron per ton after injecting hydrogen into the blast furnace under current market conditions, in units of yuan / ton of iron (yuan / t); M ０ is the coal ratio without hydrogen injection, in kilograms per ton of iron (kg / t); M is the coal ratio when hydrogen is injected, in units of kilograms of iron per ton (kg / t); P Ｍ is the price of pulverized coal put into the furnace, in units of yuan / ton of iron (yuan / t); K ０ is the coke rate without hydrogen injection, in kilograms per ton of iron (kg / t); K is the coke rate when hydrogen is injected, in kilograms per ton of iron (kg / t); P Ｋ is the price of coke put into the furnace, in units of yuan / ton of iron (yuan / t), η ０ is the blast furnace utilization coefficient when hydrogen is not injected, and its unit is ton / per cubic meter per day [t / (m ３ d)], η is the blast furnace utilization coefficient when hydrogen is injected, and its unit is ton / per cubic meter per day [t / (m ３ d)], V ＢＦ is the effective volume of the blast furnace, and its unit is cubic meters (m ３ ) and P ＰＩ is the profit per ton of iron, in units of yuan / ton (yuan / t), C ０ is the CO when hydrogen is not injected ２ is the direct emissions of iron, expressed in tonnes per tonne (t / t), C is CO when hydrogen is injected ２ is the direct emissions of iron, expressed in tonnes per tonne (t / t), P ＣＯ２ is the carbon emission trading price, with the unit being yuan / ton of iron (yuan / t); E ０ is the operating cost of the environmental protection facility per ton of iron without hydrogen injection, in units of yuan / ton of iron (yuan / t); E is the operating cost of the environmental protection facility per ton of iron when hydrogen is injected, with the unit being yuan / ton of iron (yuan / t); P Ｈ２ is the production price of hydrogen, in units of yuan / standard cubic meter (yuan / Nm ３ ) and H is the amount of hydrogen injected, and its unit is standard cubic meter / ton of iron (Nm ３ 7. The method for controlling iron production using a hydrogen-enriched blast furnace based on energy-to-mass conversion according to claim 6, wherein the hydrogen-enriched blast furnace is a hydrogen-enriched blast furnace.

9. The method for controlling the production of iron using a hydrogen-enriched blast furnace based on energy-to-mass conversion according to claim 6, wherein the electrolytic water system is powered by electrical energy produced by a solar panel, or valley power in the power grid, or wind energy.

10. 9. The method for controlling steel production using a hydrogen-enriched blast furnace based on energy-to-mass conversion according to claim 8, wherein fluctuating raw fuel prices, hydrogen prices, carbon emission taxes, and product prices are acquired in real time via a computer network and input into a hydrogen injection amount calculation model of the hydrogen injection amount calculation and control system.

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