Sintering waste gas treatment method and device, control equipment and storage medium

Abstract

The invention is suitable for the technical field of waste gas treatment, and provides a sintering waste gas treatment method and device, control equipment and a storage medium. The sintering waste gas treatment method is applied to control equipment of a sintering waste gas circulation system, the sintering waste gas circulation system comprises a circular cooler and a power generation boiler, and the circular cooler comprises a plurality of sections of sub circular coolers; the sintering waste gas treatment method comprises the steps that first sintering waste gas with the temperature within a target preset temperature interval in the annular cooler is conveyed to the first sub-annular cooler with the highest sintering waste gas temperature in the multiple sections of sub-annular coolers, and the first sintering waste gas is used as cooling air of the first sub-annular cooler. According to the treatment method for the sintering waste gas, the first sintering waste gas which cannot be used for power generation originally can be used as cooling air of the first sub-ring cooler with the highest sintering waste gas temperature, and the temperature of the first sintering waste gas can be increased in the process that the first sub-ring cooler cools sintering ore; the first sintering waste gas with the increased temperature can be used for power generation, and therefore the utilization rate of the sintering waste gas of an existing sintering waste gas circulating system is increased.

Description

Technical Field

[0001] The present application belongs to the technical field of waste gas treatment, and in particular, relates to a method, device, control equipment and storage medium for treating sintering waste gas. Background Art

[0002] When the sintered ore is cooled after combustion, sintering waste gas is generated. Since the temperature of the sintered ore decreases during the cooling process, sintering waste gas of different temperatures is generated. At present, the sintering waste gas with higher temperature is usually used for power generation through a sintering waste gas circulation system.

[0003] However, since the current sintering waste gas circulation system cannot use the sintering waste gas with a lower temperature for power generation, and the sintering waste gas with a lower temperature accounts for a large proportion, the existing sintering waste gas circulation system has a low utilization rate of the sintering waste gas. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a method, device, control equipment and storage medium for treating sintering waste gas to solve the technical problem of low utilization rate of sintering waste gas in the existing sintering waste gas circulation system.

[0005] In a first aspect, an embodiment of the present application provides a method for treating sintering waste gas, which is applied to a control device of a sintering waste gas circulation system, wherein the sintering waste gas circulation system includes a ring cooler and a power generation boiler, and the ring cooler includes a plurality of sub-ring coolers; the method includes:

[0006] The first sintering waste gas in the ring cooler whose temperature is in the target preset temperature range is transmitted to the first sub-ring cooler with the highest sintering waste gas temperature among the several sections of sub-ring coolers, so that the first sintering waste gas is used as cooling air for the first sub-ring cooler.

[0007] Optionally, also include:

[0008] The second sintering waste gas in the ring cooler having a temperature higher than the target preset temperature range is transmitted to the power generation boiler, and the power generation boiler is controlled to generate electricity using the second sintering waste gas.

[0009] Optionally, after controlling the power generation boiler to generate electricity using the second sintering waste gas, the method further includes:

[0010] The third sintering waste gas discharged from the power generation boiler is transmitted to a target sub-ring cooler among the several sections of sub-ring coolers, so that the third sintering waste gas is used as cooling air for the target sub-ring cooler; wherein the target sub-ring cooler does not include the first sub-ring cooler.

[0011] Optionally, the several sections of sub-ring coolers include the first sub-ring cooler, the second sub-ring cooler, the third sub-ring cooler and the fourth sub-ring cooler which are adjacent to each other in sequence, the sintering waste gas temperature in the third sub-ring cooler is in the target preset temperature range, and the first sintering waste gas is the sintering waste gas in the third sub-ring cooler.

[0012] Optionally, the second sintering waste gas includes the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler.

[0013] Optionally, the target sub-ring cooler includes the second sub-ring cooler and the third sub-ring cooler.

[0014] Optionally, the power generation boiler is provided with a high-temperature exhaust gas receiving port and a low-temperature exhaust gas receiving port; the second sintering exhaust gas having a temperature higher than the target preset temperature range in the ring cooler is transmitted to the power generation boiler, comprising:

[0015] The sintering waste gas in the first sub-ring cooler is transmitted to the power generation boiler through the high-temperature waste gas receiving port;

[0016] The sintering waste gas in the second sub-annular cooler is transmitted to the power generation boiler through the low-temperature waste gas receiving port;

[0017] The controlling the power generation boiler to generate electricity using the second sintering waste gas comprises:

[0018] Controlling the power generation boiler to heat the target liquid in the power generation boiler using the sintering waste gas in the second sub-annular cooler to obtain first steam;

[0019] The power generation boiler is controlled to use the sintering waste gas in the first sub-ring cooler to superheat the first steam to obtain second steam, and the second steam is used to generate electricity.

[0020] In a second aspect, an embodiment of the present application provides a sintering waste gas treatment device, which is applied to a control device of a sintering waste gas circulation system, wherein the sintering waste gas circulation system includes a ring cooler and a power generation boiler, wherein the ring cooler includes several sections of sub-ring coolers; the device includes:

[0021] The first control unit is used to transmit the first sintering waste gas whose temperature in the ring cooler is in the target preset temperature range to the first sub-ring cooler with the highest sintering waste gas temperature among the several sections of sub-ring coolers, so that the first sintering waste gas can be used as cooling air for the first sub-ring cooler.

[0022] In a third aspect, an embodiment of the present application provides a control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, each step of the method for treating sintering waste gas as described in any one of the first aspects above is implemented.

[0023] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, each step of the method for treating sintering waste gas as described in any one of the first aspects above is implemented.

[0024] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product is run on a control device, the control device executes each step of the sintering waste gas treatment method as described in any one of the first aspects above.

[0025] The sintering waste gas treatment method, device, control device and storage medium provided in the embodiments of the present application have the following beneficial effects:

[0026] In the sintering waste gas treatment method provided in the embodiment of the present application, the first sintering waste gas whose temperature is in the target preset temperature range in the ring cooler is transmitted to the first sub-ring cooler with the highest sintering waste gas temperature among the sub-ring coolers of several sections through the control device of the sintering waste gas circulation system, so that the first sintering waste gas can be used as the cooling air of the first sub-ring cooler. Through the sintering waste gas treatment method of the present application, the first sintering waste gas that was originally unable to be used for power generation can be used as the cooling air of the first sub-ring cooler with the highest sintering waste gas temperature. In the process of cooling the sintered ore in the first sub-ring cooler, the temperature of the first sintering waste gas will increase, and the first sintering waste gas with increased temperature can be used for power generation, thereby improving the utilization rate of the existing sintering waste gas circulation system for sintering waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A flowchart of a method for treating sintering waste gas provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the structure of a sintering waste gas circulation system provided in an embodiment of the present application;

[0030] Figure 3A schematic structural diagram of a sintering waste gas circulation system provided in another embodiment of the present application;

[0031] Figure 4 A schematic diagram of the structure of a sintering waste gas treatment device provided in an embodiment of the present application;

[0032] Figure 5 A schematic diagram of the structure of a control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] It should be noted that the terms used in the embodiments of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. In the description of the embodiments of the present application, unless otherwise specified, "multiple" refers to two or more than two, and "at least one", "one or more" refers to one, two or more. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, it is defined that the "first" and "second" features can explicitly or implicitly include one or more of the features.

[0034] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0035] The executor of the sintering waste gas treatment method provided in the embodiment of the present application may be a control device of a sintering waste gas circulation system.

[0036] The method for treating sintering waste gas provided in the embodiment of the present application can be applied to the scenario of using the sintering waste gas circulation system. Specifically, when it is necessary to improve the utilization rate of the sintering waste gas by the sintering waste gas circulation system, the various steps of the method for treating sintering waste gas provided in the embodiment of the present application can be executed by the control device of the sintering waste gas circulation system, thereby improving the utilization rate of the sintering waste gas by the sintering waste gas circulation system.

[0037] The embodiment of the present application first provides a sintering waste gas circulation system, and the sintering waste gas circulation system provided by the embodiment of the present application may include a ring cooler and a power generation boiler. The ring cooler may include several sections of sub-ring coolers.

[0038] The working process of the sintering waste gas circulation system provided in the embodiment of the present application is described below:

[0039] The sintering waste gas circulation system can receive the sintered ore through the ring cooler and cool the sintered ore through the ring cooler. Specifically, the sintered ore is usually received by the first sub-ring cooler in the ring cooler, and the sintered ore is transferred to other sub-ring coolers through a conveying device (such as a conveyor belt).

[0040] Each sub-annular cooler includes annular cooling air for cooling the sintered ore. After the cooling air cools the sintered ore, sintering waste gas is formed. Since the sintered ore in the first sub-annular cooler has just begun to cool, the temperature of the sintered ore in the first sub-annular cooler is the highest. Therefore, it can be seen that the temperature of the sintering waste gas of the first sub-annular cooler is the highest, and the temperature of the sintering waste gas of the second sub-annular cooler adjacent to the first sub-annular cooler is the second highest. And so on, the temperature of the sintering waste gas of the sub-annular cooler farthest from the first sub-annular cooler is the lowest.

[0041] After the ring cooler generates sintering waste gas, part of the sintering waste gas with a higher temperature in the ring cooler can be used by a power generation boiler to generate electricity.

[0042] The above is the working process of the sintering waste gas circulation system. However, in actual applications, the power generation boiler can only use the sintering waste gas with a higher temperature to generate electricity, but cannot use the sintering waste gas with a lower temperature to generate electricity. For example, the power generation boiler can only use the sintering waste gas of the first sub-annular cooler and the sintering waste gas of the second sub-annular cooler to generate electricity, but cannot use the sintering waste gas of other sub-annular coolers except the first sub-annular cooler and the second sub-annular cooler to generate electricity, which reduces the utilization rate of the sintering waste gas by the existing sintering waste gas circulation system.

[0043] Based on this, the present application embodiment provides a method for treating sintering waste gas, please refer to Figure 1 , Figure 1 A flow chart for implementing a method for treating sintering waste gas provided in an embodiment of the present application, the method for treating sintering waste gas can be applied to a control device of a sintering waste gas circulation system, wherein the sintering waste gas circulation system may include a ring cooler and a power generation boiler, and the ring cooler may include several sections of sub-ring coolers.

[0044] The method for treating sintering waste gas provided in the embodiment of the present application may include S101, which is described in detail as follows:

[0045] In S101, the first sintering waste gas in the ring cooler whose temperature is in the target preset temperature range is transmitted to the first sub-ring cooler with the highest sintering waste gas temperature among several sections of sub-ring coolers, so that the first sintering waste gas is used as cooling air for the first sub-ring cooler.

[0046] In an embodiment of the present application, the control device can transmit the first sintering waste gas in the ring cooler whose temperature is in the target preset temperature range to the first sub-ring cooler with the highest sintering waste gas temperature among several sections of sub-ring coolers, so that the first sintering waste gas can be used as cooling air for the first sub-ring cooler.

[0047] Among them, the first sintering waste gas in the target preset temperature range can be the sintering waste gas that cannot be used by the power generation boiler to generate electricity. Based on this, the target preset temperature range can be set according to the temperature of the sintering waste gas in the first sub-annular cooler and the parameters of the power generation boiler. Specifically, according to the temperature of the sintering waste gas in the first sub-annular cooler and the parameters of the power generation boiler, the degree of influence of the temperature of the sintering waste gas in the first sub-annular cooler on the power generation efficiency of the power generation boiler can be determined, and according to the degree of influence of the temperature of the sintering waste gas in the first sub-annular cooler on the power generation efficiency of the power generation boiler, the target preset temperature range can be determined.

[0048] Since the temperature of the first sintering waste gas is relatively low, the first sintering waste gas can be transmitted to the first sub-annular cooler with the highest sintering waste gas temperature among several sections of sub-annular coolers through a control device, so that the first sintering waste gas can be used as cooling air for the first sub-annular cooler. After the first sintering waste gas is used as cooling air for the first sub-annular cooler, the temperature of the first sintering waste gas will increase, so that the power generation boiler can use the first sintering waste gas with increased temperature to generate electricity.

[0049] From the above, it can be seen that in the sintering waste gas treatment method provided in the embodiment of the present application, the first sintering waste gas whose temperature is in the target preset temperature range in the ring cooler is transmitted to the first sub-ring cooler with the highest sintering waste gas temperature among the several sections of sub-ring coolers through the control device of the sintering waste gas circulation system, so that the first sintering waste gas can be used as the cooling air of the first sub-ring cooler. Through the sintering waste gas treatment method of the present application, the first sintering waste gas that was originally unable to be used for power generation can be used as the cooling air of the first sub-ring cooler with the highest sintering waste gas temperature. In the process of cooling the sintered ore in the first sub-ring cooler, the temperature of the first sintering waste gas will increase, and the first sintering waste gas after the temperature is increased can be used for power generation, thereby improving the utilization rate of the sintering waste gas by the existing sintering waste gas circulation system.

[0050] In the embodiment of the present application, the control device may further perform step a. The details are as follows:

[0051] In step a, the second sintering waste gas in the ring cooler having a temperature higher than the target preset temperature range is transmitted to the power generation boiler, and the power generation boiler is controlled to generate electricity using the second sintering waste gas.

[0052] In an embodiment of the present application, after the ring cooler generates sintering waste gas, the control device can transmit the second sintering waste gas in the ring cooler with a temperature higher than the target preset temperature range to the power generation boiler, and can control the power generation boiler to use the second sintering waste gas to generate electricity.

[0053] In an embodiment of the present application, after the first sintering waste gas is used as cooling air for the first sub-ring cooler, the temperature of the first sintering waste gas will be higher than the target preset temperature range, so the first sintering waste gas will become the second sintering waste gas with a temperature higher than the target preset temperature range and be transmitted by the control device to the power generation boiler for power generation.

[0054] In the embodiment of the present application, after executing step a, the control device may further execute step b. The details are as follows:

[0055] In step b, the third sintering waste gas discharged from the power generation boiler is transmitted to a target sub-annular cooler among the sub-annular coolers of several stages, so that the third sintering waste gas is used as cooling air of the target sub-annular cooler.

[0056] In the embodiment of the present application, after using the second sintering waste gas, the power generation boiler will discharge the third sintering waste gas with a lower temperature, and the third sintering waste gas can be used as cooling air for the target sub-ring cooler in the sub-ring coolers of several sections. The target sub-ring cooler does not include the first sub-ring cooler, that is, the target sub-ring cooler is a sub-ring cooler in the sub-ring coolers of several sections that does not include the first sub-ring cooler.

[0057] Based on this, after controlling the power generation boiler to generate electricity using the second sintering waste gas, the control device can transmit the third sintering waste gas discharged from the power generation boiler to the target sub-annular cooler among several sections of sub-annular coolers, so as to use the third sintering waste gas as cooling air for the target sub-annular cooler.

[0058] In the embodiment of the present application, the control device may further perform step c. The details are as follows:

[0059] In step c, the fourth sintering waste gas in the sub-ring cooler with the lowest sintering waste gas temperature among the sub-ring coolers of the plurality of sections is transmitted to the sintering machine.

[0060] In an embodiment of the present application, the control device can also transmit the fourth sintering waste gas in the sub-annular cooler with the lowest sintering waste gas temperature among several sections of sub-annular coolers to the sintering machine. Specifically, the control device can also transmit the fourth sintering waste gas in the sub-annular cooler with the lowest sintering waste gas temperature among several sections of sub-annular coolers to the tail of the sintering machine, so as to use the fourth sintering waste gas as cooling air at the tail of the sintering machine, thereby increasing the temperature of the cooling air at the tail of the sintering machine, thereby reducing the phenomenon of pulverization of the sintered ore and improving the utilization rate of the sintered ore.

[0061] Based on the sintering waste gas treatment method provided in the above embodiments, the present application continues to provide an optional sintering waste gas circulation system and a sintering waste gas treatment method based on the sintering waste gas circulation system.

[0062] See also Figure 2 , Figure 2 This is a schematic diagram of the structure of a sintering waste gas circulation system provided in an embodiment of the present application. Figure 2 As shown, the sintering waste gas circulation system provided in the embodiment of the present application may include a ring cooler and a power generation boiler, and the ring cooler may include several sections of sub-ring coolers. Among them, the several sections of sub-ring coolers include a first sub-ring cooler, a second sub-ring cooler, a third sub-ring cooler, and a fourth sub-ring cooler that are adjacent to each other in sequence.

[0063] In the sintering waste gas circulation system provided in the embodiment of the present application, the sintering waste gas temperature in the third sub-annular cooler can be in the target preset temperature range. Based on this, the first sintering waste gas in the annular cooler whose temperature is in the target preset temperature range can be the sintering waste gas in the third sub-annular cooler.

[0064] Based on the sintering waste gas circulation system provided in the embodiment of the present application, the control device can transmit the sintering waste gas in the third sub-annular cooler to the first sub-annular cooler so that the sintering waste gas in the third sub-annular cooler can be used as cooling air for the first sub-annular cooler.

[0065] In the sintering waste gas circulation system provided in the embodiment of the present application, the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler can both be higher than the target preset temperature range. Based on this, the second sintering waste gas in the annular cooler whose temperature is higher than the target preset temperature range can be the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler.

[0066] Based on the sintering waste gas circulation system provided in the embodiment of the present application, the control device can transmit the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler to the power generation boiler, and control the power generation boiler to generate electricity using the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler.

[0067] In the sintering waste gas circulation system provided in the embodiment of the present application, the power generation boiler can be provided with a high-temperature waste gas receiving port and a low-temperature waste gas receiving port. Based on this, the control device can transmit the sintering waste gas in the first sub-annular cooler to the power generation boiler through the high-temperature waste gas receiving port, and can transmit the sintering waste gas in the second sub-annular cooler to the power generation boiler through the low-temperature waste gas receiving port.

[0068] After the power generation boiler receives the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler, the control device can control the power generation boiler to use the sintering waste gas in the second sub-annular cooler to heat the target liquid in the power generation boiler to obtain the first steam. After that, the control device can control the power generation boiler to use the sintering waste gas in the first sub-annular cooler to superheat the first steam to obtain the second steam, and use the second steam to generate electricity.

[0069] In the sintering waste gas circulation system provided in an embodiment of the present application, the target sub-ring cooler may include a second sub-ring cooler and a third sub-ring cooler. Based on this, after the power generation boiler utilizes the sintering waste gas in the first sub-ring cooler and the sintering waste gas in the second sub-ring cooler to generate electricity, the control device can transmit the third sintering waste gas discharged from the power generation boiler to the second sub-ring cooler and the third sub-ring cooler, so that the third sintering waste gas discharged from the power generation boiler can be used as cooling air for the second sub-ring cooler and the third sub-ring cooler.

[0070] In the sintering waste gas circulation system provided in the embodiment of the present application, the sub-ring cooler with the lowest sintering waste gas temperature among the several sections of sub-ring coolers is the fourth sub-ring cooler. Based on this, the control device can transmit the fourth sintering waste gas in the fourth sub-ring cooler to the sintering machine, so as to use the fourth sintering waste gas in the fourth sub-ring cooler as cooling air at the tail of the sintering machine, thereby increasing the temperature of the cooling air at the tail of the sintering machine, thereby reducing the phenomenon of sintering ore pulverization and improving the utilization rate of the sintered ore.

[0071] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of a sintering waste gas circulation system provided by another embodiment of the present application. Figure 3 As shown, the sintering waste gas circulation system provided in the embodiment of the present application may include a first sub-ring cooler, a second sub-ring cooler, a third sub-ring cooler, a fourth sub-ring cooler, an insulating cover shell 01 between the first sub-ring cooler and the outside of the ring cooler, an insulating cover shell 02 between the second sub-ring cooler and the outside of the ring cooler, an insulating cover shell 03 between the third sub-ring cooler and the outside of the ring cooler, and an insulating cover shell 04 between the fourth sub-ring cooler and the outside of the ring cooler.

[0072] Among them, the insulating cover 01 is used to collect the sintering waste gas in the first sub-annular cooler, the insulating cover 02 is used to collect the sintering waste gas in the second sub-annular cooler, the insulating cover 03 is used to collect the sintering waste gas in the third sub-annular cooler, and the insulating cover 04 is used to collect the sintering waste gas in the fourth sub-annular cooler.

[0073] The sintering waste gas circulation system provided in the embodiment of the present application may also include a power generation boiler 11.

[0074] The sintering waste gas circulation system provided in the embodiment of the present application may further include a first waste gas isolation valve 12, a first waste gas regulating valve 13 and a first waste gas release valve 14. The first waste gas isolation valve 12 is used to open or close the transmission path between the first sub-ring cooler and the power generation boiler 11, the first waste gas regulating valve 13 is used to adjust the flow rate of the sintering waste gas delivered to the first sub-ring cooler of the power generation boiler 11, and the first waste gas release valve 14 is used to open or close the transmission path between the first sub-ring cooler and the outside.

[0075] The sintering waste gas circulation system provided in the embodiment of the present application may further include a second waste gas isolation valve 15, a second waste gas regulating valve 16 and a second waste gas release valve 17. Among them, the second waste gas isolation valve 15 is used to conduct or close the transmission path between the second sub-ring cooler and the power generation boiler 11, the second waste gas regulating valve 16 is used to adjust the flow rate of the sintering waste gas delivered to the second sub-ring cooler of the power generation boiler 11, and the second waste gas release valve 17 is used to conduct or close the transmission path between the second sub-ring cooler and the outside.

[0076] The sintering waste gas circulation system provided in the embodiment of the present application may also include a third waste gas isolation valve 21, a third waste gas release valve 22, a first cooling fan inlet regulating valve 23, a second cooling fan inlet regulating valve 24, a first cooling fan inlet make-up air valve 25, a second cooling fan inlet make-up air valve 26, a first cooling fan 27 and a second cooling fan 28.

[0077] Among them, the third exhaust gas isolation valve 21 is used to open or close the transmission path between the third sub-ring cooler and the first cooling fan 27 and the second cooling fan 28, the third exhaust gas release valve 22 is used to open or close the transmission path between the third sub-ring cooler and the outside world, the first cooling fan inlet regulating valve 23 is used to adjust the flow rate of the sintering waste gas of the third sub-ring cooler delivered to the first cooling fan 27, the second cooling fan inlet regulating valve 24 is used to adjust the flow rate of the sintering waste gas of the third sub-ring cooler delivered to the second cooling fan 28, the first cooling fan inlet make-up air valve 25 is used to adjust the parameters of the sintering waste gas delivered to the first cooling fan 27, the second cooling fan inlet make-up air valve 26 is used to adjust the parameters of the sintering waste gas of the third sub-ring cooler delivered to the second cooling fan 28, and the first cooling fan 27 and the second cooling fan 28 are used together to transmit the sintering waste gas of the third sub-ring cooler to the first sub-ring cooler.

[0078] The sintering waste gas circulation system provided in the embodiment of the present application may further include a fan inlet air supply valve 41, a fourth waste gas regulating valve 42 and a fourth waste gas release valve 43. The fan inlet air supply valve 41 is used to supply air to the sintering waste gas discharged from the power generation boiler, the fourth waste gas regulating valve 42 is used to adjust the flow of the sintering waste gas delivered to the second sub-ring cooler, the third sub-ring cooler and the fourth sub-ring cooler, and the fourth waste gas release valve 43 is used to open or close the transmission path between the sintering waste gas discharged from the power generation boiler and the outside world.

[0079] The sintering waste gas circulation system provided in the embodiment of the present application may also include a third cooling fan inlet regulating valve 45, a fourth cooling fan inlet regulating valve 46, a fifth cooling fan inlet regulating valve 47, a sixth cooling fan inlet regulating valve 48, a third cooling fan inlet make-up air valve 49, a fourth cooling fan inlet make-up air valve 50, a fifth cooling fan inlet make-up air valve 51, a sixth cooling fan inlet make-up air valve 52, a third cooling fan 53, a fourth cooling fan 54, a fifth cooling fan 55 and a sixth cooling fan 56.

[0080] Among them, the third cooling fan inlet regulating valve 45 is used to adjust the flow rate of sintering waste gas discharged from the power generation boiler and transported to the third cooling fan 53, the fourth cooling fan inlet regulating valve 46 is used to adjust the flow rate of sintering waste gas discharged from the power generation boiler and transported to the fourth cooling fan 54, the fifth cooling fan inlet regulating valve 47 is used to adjust the flow rate of sintering waste gas discharged from the power generation boiler and transported to the fifth cooling fan 55, and the sixth cooling fan inlet regulating valve 48 is used to adjust the flow rate of sintering waste gas discharged from the power generation boiler and transported to the sixth cooling fan 56.

[0081] The third cooling fan inlet air supply valve 49 is used to adjust the parameters of the sintering waste gas discharged from the power generation boiler and transported to the third cooling fan 53. The fourth cooling fan inlet air supply valve 50 is used to adjust the parameters of the sintering waste gas discharged from the power generation boiler and transported to the fourth cooling fan 54. The fifth cooling fan inlet air supply valve 51 is used to adjust the parameters of the sintering waste gas discharged from the power generation boiler and transported to the fifth cooling fan 55. The sixth cooling fan inlet air supply valve 52 is used to adjust the parameters of the sintering waste gas discharged from the power generation boiler and transported to the sixth cooling fan 56.

[0082] The third cooling fan 53, the fourth cooling fan 54, the fifth cooling fan 55 and the sixth cooling fan 56 are used together to transmit the sintering waste gas discharged from the power generation boiler to the second sub-annular cooler and the third sub-annular cooler.

[0083] The specific working process of the sintering waste gas circulation system provided in the embodiment of the present application can be referred to Figure 1 The various steps of the provided method for treating sintering waste gas will not be repeated here.

[0084] Based on the sintering waste gas treatment method provided in the above embodiment, the present application further provides a sintering waste gas treatment device for implementing the above method embodiment. Figure 4 , Figure 4 This is a schematic diagram of the structure of a sintering waste gas treatment device provided in an embodiment of the present application. Figure 4 As shown, the sintering waste gas treatment device 40 may include: a first control unit 401. Among them:

[0085] The first control unit 401 is used to transmit the first sintering waste gas whose temperature in the ring cooler is in the target preset temperature range to the first sub-ring cooler with the highest sintering waste gas temperature among several sections of sub-ring coolers, so that the first sintering waste gas can be used as cooling air for the first sub-ring cooler.

[0086] Optionally, the sintering waste gas treatment device 40 may further include a second control unit.

[0087] The second control unit is used to transmit the second sintering waste gas in the ring cooler with a temperature higher than the target preset temperature range to the power generation boiler, and control the power generation boiler to generate electricity using the second sintering waste gas.

[0088] Optionally, the sintering waste gas treatment device 40 may further include a third control unit.

[0089] The third control unit is used to transmit the third sintering waste gas discharged from the power generation boiler to a target sub-ring cooler among several sections of sub-ring coolers, so as to use the third sintering waste gas as cooling air for the target sub-ring cooler; wherein the target sub-ring cooler does not include the first sub-ring cooler.

[0090] Optionally, the several sections of sub-ring coolers include a first sub-ring cooler, a second sub-ring cooler, a third sub-ring cooler and a fourth sub-ring cooler which are adjacent to each other in sequence, the sintering waste gas temperature in the third sub-ring cooler is in the target preset temperature range, and the first sintering waste gas is the sintering waste gas in the third sub-ring cooler.

[0091] Optionally, the second sintering waste gas includes the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler.

[0092] Optionally, the target sub-ring cooler includes a second sub-ring cooler and a third sub-ring cooler.

[0093] Optionally, the power generation boiler is provided with a high-temperature exhaust gas receiving port and a low-temperature exhaust gas receiving port; the second control unit is specifically used for:

[0094] The sintering waste gas in the first sub-ring cooler is transmitted to the power generation boiler through the high-temperature waste gas receiving port;

[0095] The sintering waste gas in the second sub-ring cooler is transmitted to the power generation boiler through the low-temperature waste gas receiving port.

[0096] Optionally, the second control unit is specifically used for:

[0097] Controlling the power generation boiler to heat the target liquid in the power generation boiler using the sintering waste gas in the second sub-ring cooler to obtain the first steam;

[0098] The power generation boiler is controlled to utilize the sintering waste gas in the first sub-ring cooler to superheat the first steam to obtain the second steam, and the second steam is utilized to generate electricity.

[0099] It should be noted that the information interaction, execution process and other contents between the above-mentioned units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be specifically referred to the method embodiment part and will not be repeated here.

[0100] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of a control device provided in an embodiment of the present application. Figure 5 As shown, the control device 5 provided in this embodiment may include: a processor 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the processor 50, such as a program corresponding to the method for treating sintering waste gas. When the processor 50 executes the computer program 52, the steps in the above-mentioned method for treating sintering waste gas are implemented, such as Figure 1 Alternatively, when the processor 50 executes the computer program 52, the functions of each module / unit in the above-mentioned sintering waste gas treatment device embodiment are realized, for example Figure 4 The functionality of unit 401 is shown.

[0101] Exemplarily, the computer program 52 may be divided into one or more modules / units, one or more modules / units are stored in the memory 51 and executed by the processor 50 to complete the present application. The one or more modules / units may be a series of computer program instruction segments that can complete specific functions, and the instruction segments are used to describe the execution process of the computer program 52 in the control device 5. For example, the computer program 52 may be divided into a first control unit, and the specific functions of each unit may be referred to in Figure 4 The relevant descriptions in the corresponding embodiments are not repeated here.

[0102] Those skilled in the art will understand that Figure 5 The control device 5 is merely an example and does not constitute a limitation on the control device 5 , and may include more or less components than those shown in the figure, or a combination of certain components, or different components.

[0103] The processor 50 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0104] The memory 51 may be an internal storage unit of the control device 5, such as a hard disk or memory of the control device 5. The memory 51 may also be an external storage device of the control device 5, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, or a flash card, etc., equipped on the control device 5. Further, the memory 51 may also include both an internal storage unit and an external storage device of the control device 5. The memory 51 is used to store computer programs and other programs and data required by the control device. The memory 51 may also be used to temporarily store data that has been output or is to be output.

[0105] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units is used as an example for illustration. In actual applications, the above-mentioned functions can be assigned to different functional units as needed, that is, the internal structure of the sintering waste gas treatment device can be divided into different functional units to complete all or part of the functions described above. The functional units in the embodiment can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0106] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0107] An embodiment of the present application provides a computer program product. When the computer program product is executed on a terminal device, the terminal device implements the steps in the above-mentioned various method embodiments.

[0108] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0109] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0110] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for treating sintering waste gas, characterized in that: A control device applied to a sintering waste gas circulation system, wherein the sintering waste gas circulation system comprises an annular cooler and a power generation boiler, wherein the annular cooler comprises several sections of sub-annular coolers; and the method comprises: The first sintering waste gas in the ring cooler whose temperature is in the target preset temperature range is transmitted to the first sub-ring cooler with the highest sintering waste gas temperature among the several sections of sub-ring coolers, so that the first sintering waste gas is used as cooling air for the first sub-ring cooler.

2. The method according to claim 1, characterized in that Also includes: The second sintering waste gas in the ring cooler having a temperature higher than the target preset temperature range is transmitted to the power generation boiler, and the power generation boiler is controlled to generate electricity using the second sintering waste gas.

3. The method according to claim 2, characterized in that After controlling the power generation boiler to generate electricity using the second sintering waste gas, the method further includes: The third sintering waste gas discharged from the power generation boiler is transmitted to a target sub-ring cooler among the several sections of sub-ring coolers, so that the third sintering waste gas is used as cooling air for the target sub-ring cooler; wherein the target sub-ring cooler does not include the first sub-ring cooler.

4. The method according to claim 3, characterized in that: The several sections of sub-ring coolers include the first sub-ring cooler, the second sub-ring cooler, the third sub-ring cooler and the fourth sub-ring cooler which are adjacent to each other in sequence. The sintering waste gas temperature in the third sub-ring cooler is in the target preset temperature range, and the first sintering waste gas is the sintering waste gas in the third sub-ring cooler.

5. The method according to claim 4, characterized in that The second sintering waste gas includes the sintering waste gas in the first sub-annular cooler and the sintering waste gas in the second sub-annular cooler.

6. The method according to claim 4, characterized in that The target sub-ring cooler includes the second sub-ring cooler and the third sub-ring cooler.

7. The method according to claim 5, characterized in that The power generation boiler is provided with a high-temperature exhaust gas receiving port and a low-temperature exhaust gas receiving port; the second sintering exhaust gas having a temperature higher than the target preset temperature range in the ring cooler is transmitted to the power generation boiler, comprising: The sintering waste gas in the first sub-ring cooler is transmitted to the power generation boiler through the high-temperature waste gas receiving port; The sintering waste gas in the second sub-annular cooler is transmitted to the power generation boiler through the low-temperature waste gas receiving port; The controlling the power generation boiler to generate electricity using the second sintering waste gas comprises: Controlling the power generation boiler to heat the target liquid in the power generation boiler using the sintering waste gas in the second sub-annular cooler to obtain first steam; The power generation boiler is controlled to use the sintering waste gas in the first sub-ring cooler to superheat the first steam to obtain second steam, and the second steam is used to generate electricity.

8. A sintering waste gas treatment device, characterized in that: A control device applied to a sintering waste gas circulation system, wherein the sintering waste gas circulation system comprises an annular cooler and a power generation boiler, wherein the annular cooler comprises several sections of sub-annular coolers; the device comprises: The first control unit is used to transmit the first sintering waste gas whose temperature in the ring cooler is in the target preset temperature range to the first sub-ring cooler with the highest sintering waste gas temperature among the several sections of sub-ring coolers, so that the first sintering waste gas can be used as cooling air for the first sub-ring cooler.

9. A control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, each step of the method for treating sintering waste gas according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, each step of the method for treating sintering waste gas according to any one of claims 1 to 7 is implemented.

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