A method and device for inhibiting blockage of dust collector in sintering flue gas circulation system

Abstract

This application relates to the technical field of waste gas dust removal methods, and more particularly to a method and device for preventing clogging of a dust collector within a sintering flue gas circulation system. The method comprises controlling the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold; controlling the negative pressure difference between the sintering bellows and the circulating bellows during sintering of the sintering raw materials to not exceed a preset negative pressure difference threshold; controlling the temperature of the flue gas in the circulating bellows to not exceed a preset temperature threshold; and injecting compressed air into the flue gas within the flue gas duct. The method provided by the present invention can effectively prevent dust from adhering to and clogging the dust collector within the sintering flue gas circulation system.

Description

Technical Field

[0001] The present application relates to the technical field of waste gas dust removal methods, and in particular to a method and device for inhibiting blockage of a dust collector in a sintering flue gas circulation system. Background Art

[0002] To reduce sintering machine flue gas emissions and recover heat from waste flue gas for sintering, sintering flue gas recirculation systems are widely used. These systems typically consist of a high-temperature-resistant blower and a dust collector. During operation, flue gas can adhere to the dust collector, causing blockage. This can lead to reduced negative pressure and air volume in the sintering flue gas recirculation system, and even system shutdowns. Consequently, frequent dust collector cleaning is required, impacting sintering efficiency and increasing production costs. Summary of the Invention

[0003] This application solves the technical problem of flue gas sticking to the dust collector and causing clogging of the dust collector by providing a method for suppressing the clogging of the dust collector in the sintering flue gas circulation system. It achieves the technical effect of suppressing the flue gas sticking to the dust collector and preventing the dust collector from clogging, thereby preventing the company's production efficiency from decreasing and production costs from increasing in the sintering link.

[0004] In a first aspect, the present application provides a method for inhibiting blockage of a dust collector in a sintering flue gas circulation system. The method is applied to a system for inhibiting blockage of a dust collector in a sintering flue gas circulation system, the system comprising a raw material bin, a sintering machine, a sintering bellows, a circulating bellows, a flue gas duct, and a dust collector; the method comprises:

[0005] Control the gas-ash ratio in the sintering raw materials so as not to exceed the preset ratio threshold;

[0006] Controlling the negative pressure difference between the sintering wind box and the circulating wind box during the sintering of the sintering raw material does not exceed a preset negative pressure difference threshold;

[0007] Controlling the temperature of the flue gas in the circulating wind box to not exceed a preset temperature threshold;

[0008] Compressed air is injected into the flue gas in the flue gas duct.

[0009] Furthermore, the preset ratio threshold is 2%.

[0010] Furthermore, the preset negative pressure difference threshold is 3kPa.

[0011] Furthermore, the preset temperature threshold is 450°C.

[0012] Furthermore, the injecting of compressed air into the flue gas in the flue gas duct includes: setting 2-4 injection points in the flue gas duct, and controlling the total injection amount of the compressed air to be 5-20% of the flow rate of the flue gas.

[0013] Furthermore, a partition for blocking the flow of the flue gas is movably provided between the sintering wind box and the circulating wind box; the partition is opened and closed according to the flow demand and negative pressure difference demand of the flue gas between the sintering wind box and the circulating wind box.

[0014] In a first aspect, the present application provides a device for inhibiting the blockage of a dust collector in a sintering flue gas circulation system. The device is applied to a system for inhibiting the blockage of a dust collector in a sintering flue gas circulation system. The system includes a raw material bin, a sintering machine, a sintering bellows, a circulating bellows, a flue gas duct, and a dust collector. The device includes:

[0015] The first module is used to control the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold;

[0016] The second module is used to control the negative pressure difference between the sintering wind box and the circulation wind box during the sintering process of the sintering raw material to not exceed a preset negative pressure difference threshold;

[0017] The third module is used to control the temperature of the flue gas in the circulating wind box to not exceed a preset temperature threshold;

[0018] The fourth module is used to inject compressed air into the flue gas in the flue gas duct.

[0019] In a third aspect, the present application provides an electronic 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 program, the method steps described in any one of the first aspects are implemented.

[0020] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the method steps described in the first aspect.

[0021] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0022] In an embodiment of the present invention, a system for suppressing the blockage of a dust collector in a sintering flue gas circulation system is provided, the system comprising a raw material bin, a sintering machine, a sintering bellows, a circulating bellows, a flue gas duct, and a dust collector connected in sequence to form a passage; the method comprises controlling the gas ash ratio in the sintering raw materials to not exceed a preset ratio threshold, thereby reducing the generation of dust from high-chloride gas ash entering the flue gas during the sintering process; controlling the negative pressure difference between the sintering bellows and the circulating bellows during the sintering of the sintering raw materials to not exceed a preset negative pressure difference threshold, thereby suppressing the flow of flue gas between the sintering bellows and the circulating bellows, and preventing a large amount of dust particles from directly entering the dust collector under the action of the airflow; controlling the temperature of the flue gas in the circulating bellows to not exceed a preset temperature threshold, thereby controlling the dust temperature and suppressing the dust viscosity; and injecting compressed air into the flue gas in the flue gas duct to cool the dust in the flue gas and prevent the dust in the flue gas from adhering to the dust collector. The method provided by the present invention can effectively suppress dust from adhering to and clogging the dust collector in the sintering flue gas circulation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. Throughout the drawings, the same reference figures denote the same components. In the drawings:

[0024] Figure 1 A schematic diagram showing the steps of the method provided in the first embodiment of the present invention is shown;

[0025] Figure 2 A schematic diagram showing the structure of a system provided by Embodiment 1 of the present invention is shown;

[0026] Figure 3 A schematic diagram of an electronic structure device in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] Example 1

[0029] Embodiment 1 of the present application solves the technical problems in the prior art by providing a method for suppressing the blockage of a dust collector in a sintering flue gas circulation system.

[0030] In order to solve the above technical problems, this embodiment provides Figure 1 A method for suppressing blockage of a dust collector in a sintering flue gas circulation system is shown, and the method includes steps S101 to S104.

[0031] S101, controlling the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold.

[0032] S102, controlling the negative pressure difference between the sintering wind box and the circulating wind box during the sintering process to not exceed a preset negative pressure difference threshold.

[0033] S103, controlling the temperature of the flue gas in the circulating wind box to not exceed a preset temperature threshold.

[0034] S104: injecting compressed air into the flue gas in the flue gas duct.

[0035] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0036] First, the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0037] like Figure 2 As shown, the system for suppressing the blockage of the dust collector in the sintering flue gas circulation system includes a raw material bin, a sintering machine, a sintering bellows, a circulating bellows, a flue gas duct, and a dust collector; the raw material bin, the sintering machine, the sintering bellows, the circulating bellows, the flue gas duct, and the dust collector are all made of high-temperature resistant materials, and no specific restrictions are given here.

[0038] It should be noted that the above-mentioned sintering flue gas circulation system is a common device in the current market and industry, and the focus of this embodiment is on the utilization and modification of this system.

[0039] First, step S101 is executed to control the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold.

[0040] Specifically, the sintering raw materials enter the sintering flue gas circulation system through the raw material bin. When the sintering raw materials contain a high level of gas ash, the gas ash is easily drawn into the flue gas again during the sintering exhaust process due to its high chlorine content and poor granulation effect. The chlorine element in the gas ash is easy to volatilize, bond and condense during the high-temperature sintering process to form high-chlorine dust. Since the chlorine-containing dust has a low melting point, it is not completely cooled in the high-temperature flue gas and is sticky, sticking to the surface of the dust collector and causing the dust collector to be blocked.

[0041] After research and repeated testing, we found that controlling the gas ash content to no more than 2% can effectively prevent dust collector clogging, in conjunction with other measures. Therefore, the gas ash threshold is preset at 2%.

[0042] Then, step S102 is performed to control the negative pressure difference between the sintering wind box and the circulating wind box during the sintering process of the sintering raw material to not exceed a preset negative pressure difference threshold.

[0043] Specifically, a partition for blocking the flow of flue gas is movably provided between the sintering wind box and the circulating wind box; the partition is opened and closed according to the flue gas flow requirements and the negative pressure difference requirements between the sintering wind box and the circulating wind box.

[0044] As an optional embodiment, the baffle has an area equal to that of the contact surface and can be rotated radially about the contact surface according to flue gas flow requirements and negative pressure differential requirements. By varying the opening of the baffle, the negative pressure of the gas in the sintering windbox and the negative pressure of the gas in the circulating windbox are controlled, thereby achieving control of the negative pressure differential between the sintering windbox and the circulating windbox.

[0045] The flue gas flow rate and velocity entering the sintering bellows from the circulating bellows increase with the increase of the negative pressure difference. Excessively high negative pressure differences can lead to strong wind rushing and cross-draft phenomena, affecting the stable control of the sintering process, thereby affecting the circulating bellows' treatment of dust in the flue gas and its control of flue gas temperature. By controlling the negative pressure difference between the sintering bellows and the circulating bellows, the ventilation effect in the circulating bellows can be controlled and stabilized, achieving stable flue gas flow and temperature and reducing dust. Tests have shown that, in conjunction with other measures, when the negative pressure difference between the sintering bellows and the circulating bellows is below 3kPa, dust blockage in the dust collector can be effectively suppressed. Therefore, the negative pressure difference threshold is preset to 3kPa.

[0046] Then, step S103 is executed to control the temperature of the flue gas in the circulating wind box to not exceed a preset temperature threshold.

[0047] Specifically, excessively high flue gas temperatures can cause the dust in the flue gas to overheat. Since the high-temperature, easily adherent dust entering the circulating airbox is primarily composed of KCl, K2SO4, and Na2SO4, when the flue gas temperature reaches above 500°C, KCl, K2SO4, and Na2SO4 form a low-melting-point eutectic. This low-melting-point eutectic is difficult to cool, resulting in soft-melting dust that adheres to the dust collector surface and causes clogging. Therefore, the temperature threshold is preset at 450°C. Tests have shown that controlling the flue gas temperature below 450°C can prevent the system's safe operation from being affected by excessively high flue gas temperatures and prevent the formation of excessive soft-melting dust, thereby suppressing dust collector clogging.

[0048] As an optional implementation, controlling the temperature of the flue gas in the circulating wind box not to exceed a preset temperature threshold includes reducing the carbon content in the sintering raw materials or reducing the operating speed of the sintering machine.

[0049] Reducing the carbon content in the sintering raw materials can effectively reduce the temperature generated during the sintering process, thereby reducing the temperature of the generated flue gas. If the carbon content cannot be changed, the combustion rate of the raw materials in the sintering machine can be reduced by reducing the operating speed of the sintering machine, thereby reducing the temperature of the generated flue gas. Both methods are easy to operate and can be used in combination. When the circulating flue gas temperature exceeds 450°C, the sintering machine speed can be reduced to quickly cool it down. If the flue gas temperature does not drop significantly, the carbon content of the sintering can be reduced to achieve cooling.

[0050] Then, step S104 is executed to inject compressed air into the flue gas in the flue gas duct.

[0051] Specifically, before the flue gas enters the dust collector, room-temperature compressed air is injected into the flue gas duct. Room-temperature compressed air is readily available and expands and diffuses rapidly after entering the flue gas duct. This rapidly cools the dust in the high-temperature flue gas through heat exchange, lowering the dust temperature in the flue gas and reducing dust stickiness, thus preventing dust from sticking to the dust collector.

[0052] As an optional embodiment, a plurality of injection points are provided in the center of the flue gas duct along the flue gas flow direction. The compressed air is arranged in the center of the duct to more easily cover the entire cross section of the flue gas duct, thereby increasing the amount of contact with the dust.

[0053] As an optional implementation, the injection points are usually set to 2-4. If there are too few injection points, the compressed air will not fully contact and cool the dust. The compressed air injection amount should not be too little or too much. Too little compressed air injection is not enough to cool the dust, and too much compressed air injection will affect the effective exhaust volume of the high-temperature resistant fan and the pressure in the flue gas duct, reducing the amount of flue gas entering the circulating bellows from the sintering bellows.

[0054] As an optional implementation, the total injection rate of compressed air is set to 5-20% of the flue gas flow rate.

[0055] The total compressed air injection rate is adjusted to increase with rising flue gas temperature. A compressed air rate of 5-20% of the circulating flue gas volume is sufficient to cool dust in the flue gas to a non-sticky state. Depending on actual operating conditions, the total compressed air injection rate should be appropriately increased for high circulating flue gas temperatures and reduced for low circulating flue gas temperatures.

[0056] In addition, since the oxygen content of compressed air is higher than that of flue gas, it can supplement the oxygen content in the circulating flue gas, which is beneficial to strengthen the sintering of sintering raw materials within the coverage range of the flue gas.

[0057] In an embodiment of the present invention, a system for inhibiting the blockage of a dust collector in a sintering flue gas circulation system is provided, the system comprising a raw material bin, a sintering machine, a sintering bellows, a circulating bellows, a flue gas duct, and a dust collector; the method comprising: controlling the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold, thereby reducing the high-chlorine dust content in the flue gas generated by sintering; controlling the negative pressure difference between the sintering bellows and the circulating bellows during the sintering of the sintering raw materials to not exceed a preset negative pressure difference threshold, thereby achieving a stable flue gas flow and temperature in the circulating bellows and reducing the amount of dust; controlling the temperature of the flue gas in the circulating bellows to not exceed a preset temperature threshold, thereby inhibiting the dust from soft melting and sticking due to excessive temperature, thereby inhibiting dust from sticking to the dust collector; and injecting compressed air into the flue gas in the flue gas duct to cool the dust and inhibit its viscosity, thereby preventing dust in the flue gas from sticking to the dust collector. The method provided by the present invention can effectively inhibit dust from sticking to and clogging the dust collector in the sintering flue gas circulation system.

[0058] Example 2

[0059] Based on the same inventive concept, during the implementation of Example 2, the amount of ironmaking gas ash in the sintering raw materials is controlled at about 2%. After a sealing facility is added between the circulating air box and the adjacent non-circulating air box, the difference in flue gas negative pressure between the circulating air box and the adjacent non-circulating air box is about 3kpa, and the circulating flue gas temperature is maintained at about 300°C, without the need for carbon dosage and end point control; two compressed air injection points are set in the flue gas duct in front of the dust collector, and compressed air of 5% of the rated air volume of the circulating fan is injected. The pressure of the circulating fan exhaust bellows is basically maintained unchanged, the dust collector of the high-temperature flue gas circulation system has no sticking phenomenon, and the high-temperature flue gas circulation system operates stably for a long time.

[0060] Example 3

[0061] Based on the same inventive concept, during the implementation of Example 3, the amount of ironmaking gas ash in the sintering raw materials is controlled at about 1%. After a sealing facility is added between the circulating air box and the adjacent non-circulating air box, the difference in flue gas negative pressure between the circulating air box and the adjacent non-circulating air box is about 2 kPa, and the circulating flue gas temperature is maintained between 400°C and 460°C. The circulating flue gas temperature is controlled to not exceed 450°C by reducing the sintering machine speed, and is around 420°C on average. Two compressed air injection points are set in the flue gas duct in front of the dust collector, and compressed air of 10% of the rated air volume of the circulating fan is injected. The pressure of the circulating fan exhaust bellows remains basically unchanged, the dust collector of the high-temperature flue gas circulation system has no sticking phenomenon, and the high-temperature flue gas circulation system operates stably for a long time.

[0062] Example 4

[0063] Based on the same inventive concept, during the implementation of Example 4, the amount of ironmaking gas ash in the sintering raw materials is controlled to be 0. After a sealing facility is added between the circulating wind box and the adjacent non-circulating wind box, the difference in flue gas negative pressure between the circulating wind box and the adjacent non-circulating wind box is about 2kpa, and the circulating flue gas temperature is maintained between 430℃-470℃. The circulating flue gas temperature is controlled to not exceed 450℃ and average at about 430℃ by temporarily controlling the machine speed and lowering the carbon content. Three compressed air injection points are set in the flue gas duct in front of the dust collector, and compressed air of 20% of the rated air volume of the circulating fan is sprayed into it. The pressure of the circulating fan exhaust bellows is only slightly reduced, and there is no sticking phenomenon in the dust collector of the high-temperature flue gas circulation system, and the high-temperature flue gas circulation system operates stably for a long time.

[0064] Example 5

[0065] Based on the same inventive concept, embodiment 5 provides a device for inhibiting the blockage of a dust collector in a sintering flue gas circulation system. The device is applied to a system for inhibiting the blockage of a dust collector in a sintering flue gas circulation system. The system includes a raw material bin, a sintering machine, a sintering bellows, a circulating bellows, a flue gas duct, and a dust collector. The device includes:

[0066] The first module is used to control the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold.

[0067] The first module reduces the high-chlorine dust content in the flue gas generated by sintering by controlling the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold.

[0068] The second module is used to control the negative pressure difference between the sintering wind box and the circulation wind box during the sintering process of the sintering raw material so as not to exceed a preset negative pressure difference threshold.

[0069] The second module controls the negative pressure difference between the sintering bellows and the circulating bellows during the sintering of the sintering raw materials so as not to exceed a preset negative pressure difference threshold, thereby achieving stable flue gas flow and temperature in the circulating bellows and reducing the amount of dust.

[0070] The third module is used to control the temperature of the flue gas in the circulating wind box to not exceed a preset temperature threshold.

[0071] The third module controls the temperature of the flue gas in the circulating wind box not to exceed a preset temperature threshold, thereby suppressing the soft melting and adhesion of dust due to excessive temperature, and further suppressing the dust from adhering to the dust collector.

[0072] The fourth module is used to inject compressed air into the flue gas in the flue gas duct.

[0073] The fourth module prevents dust in the flue gas from adhering to the dust collector by spraying compressed air into the flue gas in the flue gas duct.

[0074] The device provided in Example 5 can effectively prevent dust from adhering to and clogging the dust collector in the sintering flue gas circulation system.

[0075] Example 6

[0076] Based on the same inventive concept, the sixth embodiment of the present application provides an electronic device, as shown in the attached Figure 3 As shown, it includes a memory 304, a processor 302 and a computer program stored in the memory 304 and executable on the processor 302. When the processor 302 executes the program, the steps of the above-mentioned method for inhibiting the blockage of the dust collector in the sintering flue gas circulation system are implemented.

[0077] Among them, Figure 3 In the embodiment of the present invention, a bus architecture (represented by bus 300) is shown. Bus 300 may include any number of interconnected buses and bridges, and bus 300 links together various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 306 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same component, namely a transceiver, which provides a unit for communicating with various other devices over a transmission medium. Processor 302 is responsible for managing bus 300 and general processing, while memory 304 may be used to store data used by processor 302 when performing operations.

[0078] Example 7

[0079] Based on the same inventive concept, embodiment seven of the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for inhibiting blockage of a dust collector in a sintering flue gas circulation system.

[0080] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Various general-purpose systems can also be used together with the teachings based on this. According to the above description, it is obvious that the structure required for constructing this type of system. In addition, the present invention is not directed to any specific programming language. It should be understood that various programming languages can be utilized to realize the content of the present invention described herein, and the above description of specific languages is for the purpose of disclosing the best mode of the present invention.

[0081] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0082] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Accordingly, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the invention.

[0083] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition may be divided into multiple submodules or subunits or subcomponents. All features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed herein may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0084] Furthermore, those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of the present invention and to form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination.

[0085] The various component embodiments of the present invention can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functions of some or all of the components in the electronic device according to an embodiment of the present invention. The present invention can also be implemented as a device or apparatus program (e.g., a computer program and a computer program product) for executing a part or all of the methods described herein. Such a program implementing the present invention can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0086] The above is only an embodiment of the present application. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of this application, several variations and improvements can be made, which should also be regarded as the scope of protection of this application. These will not affect the effect of the implementation of this application and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A method for inhibiting blockage of a dust collector in a sintering flue gas circulation system, characterized in that: The method is applied to a system for inhibiting blockage of a dust collector in a sintering flue gas circulation system, wherein the system comprises a raw material bin, a sintering machine, a sintering bellows, a circulation bellows, a flue gas duct, and a dust collector, wherein the circulation bellows, the dust collector, and the flue gas duct are sequentially connected; the method comprises: Control the gas-ash ratio in the sintering raw materials so as not to exceed the preset ratio threshold; Controlling the negative pressure difference between the sintering wind box and the circulating wind box during the sintering of the sintering raw material does not exceed a preset negative pressure difference threshold; Controlling the temperature of the flue gas in the circulating wind box to not exceed a preset temperature threshold; Compressed air is injected into the flue gas in the flue gas duct.

2. The method for suppressing the blockage of the dust collector in the sintering flue gas circulation system according to claim 1, characterized in that: The preset ratio threshold is 2%.

3. The method for suppressing the blockage of the dust collector in the sintering flue gas circulation system according to claim 1, characterized in that: The preset negative pressure difference threshold is 3kPa.

4. The method for suppressing the blockage of the dust collector in the sintering flue gas circulation system according to claim 1, characterized in that: The preset temperature threshold is 450°C.

5. The method for suppressing the blockage of the dust collector in the sintering flue gas circulation system according to claim 1, characterized in that: The injecting of compressed air into the flue gas in the flue gas duct comprises: setting 2-4 injection points in the flue gas duct, and controlling the total injection amount of the compressed air to be 5-20% of the flow rate of the flue gas.

6. The method for suppressing the blockage of a dust collector in a sintering flue gas circulation system according to claim 1, characterized in that: A partition is movably provided between the sintering wind box and the circulating wind box for blocking the flow of the flue gas; the partition is opened and closed according to the flow demand and negative pressure difference demand of the flue gas between the sintering wind box and the circulating wind box.

7. A device for inhibiting the blockage of a dust collector in a sintering flue gas circulation system, characterized in that: The device is applied to a system for inhibiting the blockage of a dust collector in a sintering flue gas circulation system, wherein the system comprises a raw material bin, a sintering machine, a sintering bellows, a circulation bellows, a flue gas duct, and a dust collector, wherein the circulation bellows, the dust collector, and the flue gas duct are sequentially connected; the device comprises: The first module is used to control the gas-ash ratio in the sintering raw materials to not exceed a preset ratio threshold; The second module is used to control the negative pressure difference between the sintering wind box and the circulation wind box during the sintering process of the sintering raw material to not exceed a preset negative pressure difference threshold; The third module is used to control the temperature of the flue gas in the circulating wind box to not exceed a preset temperature threshold; The fourth module is used to inject compressed air into the flue gas in the flue gas duct.

8. An electronic 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 program, the method steps according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method steps according to any one of claims 1 to 6 are implemented.

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