Gas supply system and gas supply method

Abstract

According to the gas supply system and method, a blast furnace blower supplies gas to a tuyere of a blast furnace, and if the gas demand quantity of the blast furnace is not matched with the flow of an air outlet of the blast furnace blower due to the change of working conditions, the blast furnace blower supplies gas to the tuyere of the blast furnace; therefore, the working condition parameters of the blast furnace blower approach or reach the surge working condition parameters of the blast furnace blower that surge is about to occur or occurs, and the possibility of surge occurs. At the moment, the blast furnace blower supplies gas to the tuyere and the user-side equipment communicated with the blast furnace blower, the blast furnace blower supplies gas to the blast furnace and the user-side equipment at the same time, and the blast furnace gas demand quantity is superposed with the gas quantity of the user-side equipment and matched with the flow of the air outlet of the blast furnace blower; working condition parameters of the blast furnace blower can be recovered to a safe operation condition, the possibility of surge of the blast furnace blower is reduced, stable work of the blast furnace is ensured, the working stability of the blast furnace blower and the blast furnace is improved, and the technical problem that the stability is not ideal in the production process of the blast furnace is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of gas supply systems, and in particular, relates to a gas supply system and a gas supply method. Background Art

[0002] Blast furnace blower is an important equipment for blast furnace production, which can provide the necessary airflow for blast furnace production.

[0003] At present, during the operation of the blast furnace, the operating conditions of the blast furnace may affect the normal gas supply of the blast furnace blower, thereby affecting the production stability of the blast furnace. Gas waste may also occur during the adjustment of the blast furnace blower, making the production process of the blast furnace unstable and energy-saving and emission-reducing. Summary of the invention

[0004] The present application aims to solve the technical problems of unstable production process and energy saving and emission reduction of blast furnace to a certain extent. To this end, the present application provides a gas supply system and a gas supply method.

[0005] The present application embodiment provides a gas supply method, comprising:

[0006] enabling the blast furnace blower to supply gas to the tuyere of the blast furnace;

[0007] If the operating parameters of the blast furnace blower reach surge operating parameters, the blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower. The surge operating parameters are the set operating parameters of the blast furnace blower anti-surge control.

[0008] In some or certain embodiments, the step of causing the blast furnace blower to supply gas to the tuyere and a user-end device connected to the blast furnace blower comprises:

[0009] The blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower until the operating parameters of the blast furnace blower are adjusted to a safe operating parameter range and maintained for a set period of time. The safe operating parameter range is the operating parameter interval of the blast furnace blower under a safe working state.

[0010] In some or certain embodiments, the blast furnace blower is made to supply gas to the tuyere and the user-end equipment connected to the blast furnace blower until the operating parameters of the blast furnace blower are adjusted to a safe operating parameter range, and the gas supply method further comprises:

[0011] The blast furnace blower stops supplying gas to the user-end equipment.

[0012] In some or certain embodiments, the surge operating parameters include the inlet flow, intake pressure, intake temperature, outlet pressure and rotation speed of the blast furnace blower.

[0013] In some or certain embodiments, the user-end equipment includes a regeneration tower and a pipeline assembly connected to the regeneration tower, and the step of enabling the blast furnace blower to supply gas to the tuyere and the user-end equipment connected to the blast furnace blower includes:

[0014] causing the blast furnace blower to supply gas to the duct assembly;

[0015] The pipeline assembly adjusts the pressure and flow rate of the gas to supply the gas to the regeneration tower.

[0016] In some or certain embodiments, the step of causing the pipeline assembly to adjust the pressure and flow rate of the gas to supply the gas to the regeneration tower includes:

[0017] The pipeline assembly adjusts the pressure of the gas to a required pressure and the flow rate of the gas to a required flow rate, so as to supply the gas to the regeneration tower.

[0018] The present application provides a gas supply system for implementing the gas supply method as described above, the gas supply system comprising:

[0019] Blast furnace blowers;

[0020] A blast furnace, provided with an air outlet connected to an air outlet of a blast furnace blower;

[0021] The user-end device is connected to the air outlet of the blast furnace blower.

[0022] In some or certain embodiments, the gas supply system further comprises:

[0023] An exhaust duct, which is controllable in on and off and one end of which is connected to the air outlet of the blast furnace blower;

[0024] A discharge tower is communicated with the other end of the exhaust pipe.

[0025] In some or certain embodiments, the user-end equipment includes a regeneration tower and a pipeline assembly connected to the regeneration tower, and the gas supply system further includes:

[0026] The buffer tank is provided with an inlet and an outlet spaced apart, wherein the inlet is communicated with the exhaust pipe, and the outlet is communicated with the pipe assembly.

[0027] In some or certain embodiments, the pipeline assembly includes:

[0028] A delivery pipeline, both ends of which are connected to the outlet and the regeneration tower respectively;

[0029] A check valve and a third pressure regulating valve are arranged in the exhaust pipe at intervals.

[0030] Advantageous effects provided by one or more embodiments of the present application:

[0031] The blast furnace blower normally supplies gas to the tuyere of the blast furnace. If the gas flow required by the tuyere of the blast furnace changes due to operating conditions and the gas flow at the outlet of the blast furnace blower does not match the flow at the outlet of the blast furnace blower, the operating parameters of the blast furnace blower may approach or reach the surge operating parameters of the blast furnace blower, which is about to occur or has occurred surge, and the blast furnace blower may experience surge. At this time, the blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower. The blast furnace blower is in a state of supplying gas to the blast furnace and the user-end equipment at the same time. The gas demand of the user-end equipment can make up for the impact of the reduction of the blast furnace gas demand on the blast furnace blower. The blast furnace gas demand is superimposed on the gas volume of the user-end equipment and matched with the flow rate of the blast furnace blower outlet. The operating parameters of the blast furnace blower can be restored to a safe operating condition, reducing the possibility of blast furnace blower surge, reducing the impact of blast furnace blower surge on blast furnace operation, and improving the stability of blast furnace blower and blast furnace operation. All gases provided by the blast furnace blower are transported to the blast furnace and the user-end equipment for use, without gas waste, and also have a certain energy-saving and emission reduction effect. To a certain extent, the technical problems of unstable production process of blast furnace and energy saving and emission reduction are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A flow chart of a gas supply method in some embodiments or certain embodiments of the present application is shown.

[0034] Figure 2 A flow chart of another gas supply method in some embodiments or certain embodiments of the present application is shown.

[0035] Figure 3 A schematic structural diagram of an air supply system in some embodiments or certain embodiments of the present application is shown.

[0036] Explanation of the accompanying drawings: 1. blast furnace blower; 11. air outlet; 2. user-end equipment; 21. regeneration tower; 22. pipeline assembly; 221. delivery pipeline; 222. check valve; 223. third pressure regulating valve; 3. gas supply pipeline; 31. control valve; 4. oxygen-enriched pipeline; 5. exhaust pipeline; 51. first pressure regulating valve; 6. venting tower; 7. buffer tank; 71. inlet; 72. outlet; 8. buffer pipeline; 81. second pressure regulating valve. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] In the related art, during the operation of a blast furnace, changes in the operating conditions of the blast furnace will cause changes in the airflow rate required by the tuyere of the blast furnace, causing the required flow rate of the blast furnace to not match the gas flow rate supplied by the blast furnace blower, resulting in surging of the blast furnace blower. The surging of the blast furnace blower will cause unstable gas supply from the blast furnace blower, and the production stability of the blast furnace receiving the gas from the blast furnace blower will also be affected. However, if the blast furnace blower is adjusted to vent part of the gas provided by the blast furnace blower to reduce the possibility of surging of the blast furnace blower, there will be a waste of resources. In the overall production process of the blast furnace, there are technical problems of instability and energy conservation and emission reduction. The embodiments of the present application provide a gas supply system and a gas supply method, which can at least solve the above technical problems to a certain extent.

[0042] The present application will be described below with reference to the accompanying drawings:

[0043] Figure 1 A flow chart of a gas supply method in some embodiments or certain embodiments of the present application is shown, referring to Figure 1 , an embodiment of the present application provides a gas supply method, comprising:

[0044] S101: The blast furnace blower supplies gas to the tuyere of the blast furnace.

[0045] S102: If the operating parameters of the blast furnace blower reach the surge operating parameters, the blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower. The surge operating parameters are the set operating parameters of the blast furnace blower anti-surge control.

[0046] The blast furnace blower normally supplies gas to the tuyere of the blast furnace. If the gas flow required by the tuyere of the blast furnace changes due to operating conditions and the gas flow at the outlet of the blast furnace blower does not match the flow at the outlet of the blast furnace blower, the operating parameters of the blast furnace blower may approach or reach the surge operating parameters of the blast furnace blower, which is about to occur or has occurred surge, and the blast furnace blower may experience surge. At this time, the blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower. The blast furnace blower is in a state of supplying gas to the blast furnace and the user-end equipment at the same time. The gas demand of the user-end equipment can make up for the impact of the reduction of the blast furnace gas demand on the blast furnace blower. The blast furnace gas demand is superimposed on the gas volume of the user-end equipment and matched with the flow rate of the blast furnace blower outlet. The operating parameters of the blast furnace blower can be restored to a safe operating condition, reducing the possibility of blast furnace blower surge, reducing the impact of blast furnace blower surge on blast furnace operation, and improving the stability of blast furnace blower and blast furnace operation. All gases provided by the blast furnace blower are transported to the blast furnace and the user-end equipment for use, without gas waste, and also have a certain energy-saving and emission reduction effect. To a certain extent, the technical problems of unstable production process of blast furnace and energy saving and emission reduction are solved.

[0047] It should be noted that the set working parameters of the anti-surge control can be determined according to the anti-surge curve, and the anti-surge curve is determined by taking a certain safety margin according to the surge line, and the surge line is determined by the performance test and surge test of the unit. When the blast furnace is operated at a constant air pressure, when the actual flow rate of the blast furnace blower is less than the allowable value of the anti-surge control, the operating parameters of the blast furnace blower may reach the set operating parameters. At this time, the blast furnace blower can supply gas to the blast furnace and the user-end equipment at the same time, so that the operating parameters of the blast furnace blower (such as the actual air volume) can be adjusted to the safe operating parameters. At a constant air volume, when the actual spit pressure of the blast furnace blower is greater than the allowable value, the blast furnace blower can also be made to supply gas to the blast furnace and the user-end equipment at the same time, so that the actual spit pressure is lower than the allowable value, even if the actual operating parameters of the blast furnace blower are controlled in a safe condition away from the surge parameters. Under the operating pressure of the blast furnace, the blast furnace demand flow is greater than the flow rate of the blast furnace blower's air outlet, and the blast furnace blower usually does not surge. The blast furnace blower and the tuyere of the blast furnace, as well as the blast furnace blower and the user-end equipment can be connected through pipelines and pneumatic components. The user-end equipment can be any equipment that has a demand for gas.

[0048] In step S102 of some or certain embodiments, enabling the blast furnace blower to supply gas to the tuyere and the user-end equipment connected to the blast furnace blower may include:

[0049] The blast furnace blower supplies gas to the tuyere and user-end equipment connected to the blast furnace blower until the operating parameters of the blast furnace blower are adjusted to a safe operating parameter range and maintained for a set period of time. The safe operating parameter range is the operating parameter interval of the blast furnace blower under a safe working state.

[0050] The blast furnace blower supplies gas to the user-end equipment and the operating parameters of the blast furnace blower are adjusted to the safe operating parameter range, which can ensure that the blast furnace blower has been working stably for the set time and that the blast furnace blower can also operate stably afterwards, effectively reducing the possibility of surge of the blast furnace blower, improving the operating stability of the blast furnace blower and thus improving the stability of blast furnace production.

[0051] It should be noted that the safe working state of the blast furnace blower is a working state in which the blast furnace blower does not experience abnormal conditions such as surge. The set duration can be obtained based on multiple tests or set according to demand.

[0052] In some or certain embodiments, the surge operating parameters may include the inlet flow, intake pressure, intake temperature, outlet pressure and rotation speed of the blast furnace blower. The above parameters of the blast furnace blower will directly affect the working state of the blast furnace blower. Therefore, by monitoring the above parameters of the blast furnace blower, it can be determined whether the blast furnace blower will experience a surge state, which is convenient for judging the working state of the blast furnace blower and whether it is surging.

[0053] In some or certain embodiments, the user-end device may also include a regeneration tower and a pipeline assembly connected to the regeneration tower, and the step S102 of causing the blast furnace blower to supply gas to the tuyere and the user-end device connected to the blast furnace blower may include:

[0054] The blast furnace blower supplies gas to the pipeline assembly; and the pipeline assembly adjusts the pressure and flow of the gas to supply the gas to the regeneration tower.

[0055] The regeneration tower itself has a certain gas demand. The gas from the blast furnace blower is transported to the regeneration tower, which can utilize the gas output by the blast furnace blower and achieve the effect of energy saving and emission reduction. The gas from the blast furnace blower is transported to the pipeline assembly, and then transported to the regeneration tower through the pipeline assembly. The pipeline assembly can adjust the pressure and flow of the gas, so that the reaction effect between the gas flowing out of the blast furnace blower and the regeneration tower is better, which plays an effective role in energy saving and emission reduction as a whole.

[0056] In some or certain embodiments, enabling the pipeline assembly to adjust the pressure and flow of the gas to supply the gas to the regeneration tower may include:

[0057] The pipeline assembly adjusts the pressure of the gas to the required pressure and the flow rate of the gas to the required flow rate to supply the gas to the regeneration tower, thereby improving the reaction effect in the regeneration tower.

[0058] In some or certain embodiments, the required pressure may be between 0.4 and 0.6 MPa, and the required flow rate may be between 500 and 1000 Nm 3 / h. It is widely used and has wide applicability.

[0059] Figure 2 A flow chart of another gas supply method in some embodiments or certain embodiments of the present application is shown, referring to Figure 2 , the gas supply method may also include:

[0060] S201: Enable the blast furnace blower to supply gas to the tuyere of the blast furnace.

[0061] The blast furnace blower can supply air to the tuyere of the blast furnace through a structure such as a pipeline connected to the tuyere of the blast furnace.

[0062] S202: The blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower until the operating parameters of the blast furnace blower are adjusted to a safe operating parameter range and maintained for a set period of time. The safe operating parameter range is the operating parameter interval of the blast furnace blower under a safe working state.

[0063] Step S202 may refer to the aforementioned step S102 and will not be described in detail here.

[0064] S203: Stop the blast furnace blower from supplying gas to the user-end equipment.

[0065] After the operating parameters of the blast furnace blower are adjusted to the safe operating parameter range, the blast furnace blower can stop supplying gas to the user-end equipment, reduce the energy consumption of the blast furnace blower, and ensure the stable production of the blast furnace. The blast furnace blower stops supplying gas to the user-end equipment by closing the pipeline between the blast furnace blower and the user-end equipment through a valve, or by closing the receiving port of the user-end equipment for receiving gas.

[0066] Based on the same inventive concept, the present application provides a gas supply system for implementing the gas supply method as described above. Figure 3 FIG. 1 shows a schematic diagram of a gas supply system in some embodiments or certain embodiments of the present application, with reference to FIG. Figure 3 , the gas supply system may include:

[0067] Blast furnace blower 1.

[0068] The blast furnace is provided with an air port connected to the air outlet 11 of the blast furnace blower 1.

[0069] The user-end device 2 is connected to the air outlet 11 of the blast furnace blower 1 .

[0070] The gas supply method and its corresponding technical effects can be referred to above, and will not be described in detail here. The air outlet 11 of the blast furnace blower 1 can supply gas to the tuyere of the blast furnace and the user-end device 2.

[0071] In some or certain embodiments, the air outlet 11 of the blast furnace blower 1 may also be connected to the tuyere of the blast furnace through the gas supply pipe 3, and the gas supply pipe 3 may be provided with a control valve 31 for controlling the on-off of the gas supply pipe 3. The control valve 31 is convenient for supplying the blast furnace and can improve the safety of use. The gas supply system may also include an oxygen-enriched pipe 4, which is connected to the blast furnace blower 1 and is used to provide oxygen-enriched gas to the blast furnace blower 1. The air mixed with the oxygen-enriched gas is compressed by the blast furnace blower 1 and flows out from the air outlet 11 of the blast furnace blower 1. The control valve 31 can be set as a mechanical valve or a solenoid valve, etc. according to requirements. It should be noted that, Figure 3 The blast furnace and the tuyere of the blast furnace connected at the other end of the gas supply pipe 3 are omitted.

[0072] In some or certain embodiments, the gas supply system may further include:

[0073] The exhaust duct 5 is controllable in on and off and one end of the exhaust duct 5 is connected to the air outlet 11 of the blast furnace blower 1 .

[0074] The discharge tower 6 is communicated with the other end of the exhaust pipe 5 .

[0075] The exhaust duct 5 and the discharge tower 6 can play a certain emergency role. For example, when the user-end device 2 does not need gas supply, the gas at the air outlet 11 of the blast furnace blower 1 can be released to ensure the stable operation of the blast furnace blower 1.

[0076] In some or certain embodiments, the on-off controllable exhaust pipe 5 can be realized by providing a stop valve or a first pressure regulating valve 51 on the exhaust pipe 5. The first pressure regulating valve 51 on the exhaust pipe 5 can also change the gas flow rate discharged from the exhaust pipe 5 and the venting tower 6.

[0077] In some or certain embodiments, the user terminal device 2 includes a regeneration tower 21 and a pipeline assembly 22 connected to the regeneration tower 21, and the gas supply system further includes:

[0078] The buffer tank 7 is provided with an inlet 71 and an outlet 72 spaced apart from each other. The inlet 71 is communicated with the exhaust pipe 5 , and the outlet 72 is communicated with the pipe assembly 22 .

[0079] The gas flowing out of the air outlet 11 of the blast furnace blower 1 can first enter the buffer tank 7 for buffering, and then enter the regeneration tower 21 through the buffer tank 7 and the pipeline assembly 22, so that the gas can be collected and the gas flow entering the regeneration tower 21 can be adjusted.

[0080] In some or certain embodiments, the exhaust pipe 5 and the inlet 71 of the buffer tank 7 may also be connected through a buffer pipe 8 , and a second pressure regulating valve 81 may be provided on the buffer pipe 8 to facilitate regulating the gas flow entering the buffer tank 7 .

[0081] In some or certain embodiments, the two ends of the buffer pipe 8 are connected to the exhaust pipe 5 and the inlet 71 of the buffer tank 7, respectively, and the first pressure regulating valve 51 on the exhaust pipe 5 is located between one end of the buffer pipe 8 and the discharge tower 6. The first pressure regulating valve 51 and the second pressure regulating valve 81 can be interlocked through a safety interlock module (not shown in the figure). The safety interlock module that interlocks the first pressure regulating valve 51 and the second pressure regulating valve 81 is used to interlock the opening of the first pressure regulating valve 51 and the opening of the second pressure regulating valve 81. To improve the safety of the gas supply system, when the first pressure regulating valve 51 is closed, the second pressure regulating valve 81 can be fully opened, and vice versa, the gas flow rate flowing out of the air outlet 11 of the blast furnace blower 1 can also be controlled to be relatively stable.

[0082] In some or certain embodiments, the pipeline assembly 22 includes:

[0083] The delivery pipeline 221 has two ends connected to the outlet 72 and the regeneration tower 21 respectively;

[0084] The check valve 222 and the third pressure regulating valve 223 are provided in the exhaust pipe 5 in between.

[0085] It can prevent the airflow from the regeneration tower 21 from flowing back into the buffer tank 7 or the blast furnace blower 1. The third pressure regulating valve 223 can also adjust the gas flow entering the regeneration tower 21 to ensure the working efficiency of the regeneration tower 21.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in the embodiments or examples of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0087] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0088] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A gas supply method, characterized in that: include: enabling the blast furnace blower to supply gas to the tuyere of the blast furnace; If the operating parameters of the blast furnace blower reach surge operating parameters, the blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower. The surge operating parameters are the set operating parameters of the blast furnace blower anti-surge control.

2. The gas supply method according to claim 1, characterized in that: The method of causing the blast furnace blower to supply gas to the tuyere and the user-end equipment connected to the blast furnace blower comprises: The blast furnace blower supplies gas to the tuyere and the user-end equipment connected to the blast furnace blower until the operating parameters of the blast furnace blower are adjusted to a safe operating parameter range and maintained for a set period of time. The safe operating parameter range is the operating parameter interval of the blast furnace blower under a safe working state.

3. The gas supply method according to claim 2, characterized in that: The blast furnace blower is made to supply gas to the tuyere and the user-end equipment connected to the blast furnace blower until the operating parameters of the blast furnace blower are adjusted to a safe operating parameter range, and the gas supply method further comprises: The blast furnace blower stops supplying gas to the user-end equipment.

4. The gas supply method according to any one of claims 1 to 3, characterized in that: The surge operating parameters include the inlet flow, intake pressure, intake temperature, outlet pressure and rotation speed of the blast furnace blower.

5. The gas supply method according to any one of claims 1 to 3, characterized in that: The user-end equipment includes a regeneration tower and a pipeline assembly connected to the regeneration tower, and the method of enabling the blast furnace blower to supply gas to the tuyere and the user-end equipment connected to the blast furnace blower includes: causing the blast furnace blower to supply gas to the duct assembly; The pipeline assembly is configured to adjust the pressure and flow rate of the gas to supply the gas to the regeneration tower.

6. The gas supply method according to claim 5, characterized in that: The step of causing the pipeline assembly to adjust the pressure and flow of the gas to supply the gas to the regeneration tower comprises: The pipeline assembly adjusts the pressure of the gas to a required pressure and the flow rate of the gas to a required flow rate, so as to supply the gas to the regeneration tower.

7. A gas supply system, characterized in that: Used to implement the gas supply method according to any one of claims 1 to 6, the gas supply system comprises: Blast furnace blowers; A blast furnace, provided with an air outlet connected to an air outlet of a blast furnace blower; The user-end device is connected to the air outlet of the blast furnace blower.

8. The gas supply system according to claim 7, characterized in that: The gas supply system also includes: An exhaust duct, which is controllable in on and off and one end of which is connected to the air outlet of the blast furnace blower; A discharge tower is communicated with the other end of the exhaust pipe.

9. The gas supply system according to claim 8, characterized in that: The user-end equipment includes a regeneration tower and a pipeline assembly connected to the regeneration tower, and the gas supply system also includes: The buffer tank is provided with an inlet and an outlet spaced apart, wherein the inlet is communicated with the exhaust pipe, and the outlet is communicated with the pipe assembly.

10. The gas supply system according to claim 9, characterized in that: The pipeline assembly comprises: A delivery pipeline, both ends of which are connected to the outlet and the regeneration tower respectively; A check valve and a third pressure regulating valve are arranged in the exhaust pipe at intervals.

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