Method and apparatus for treating yellow phosphorus furnace gas for yellow phosphorus production by electric furnace method

Abstract

The application relates to the field of yellow phosphorus production tail gas treatment, and discloses a yellow phosphorus furnace gas treatment method and equipment for yellow phosphorus production by an electric furnace method, which comprises the following steps: obtaining a yellow phosphorus furnace gas temperature value of yellow phosphorus furnace gas discharged from a yellow phosphorus electric furnace, and performing electric dust removal on the yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas; the dust-removed yellow phosphorus furnace gas is transported to a condensation tower for yellow phosphorus extraction to obtain yellow phosphorus condensation tail gas, and the yellow phosphorus condensation tail gas is transported to a hot blast furnace for combustion to generate a hot gas flow; a first flow rate and a second flow rate are determined according to the difference between a preset dust removal temperature value and the yellow phosphorus furnace gas temperature value, the yellow phosphorus furnace gas is heated to the dust removal temperature value by the hot gas flow with the first flow rate before electric dust removal, and the phosphorus ore is dried and heated by the hot gas flow with the second flow rate, and the dried and heated phosphorus ore is transported into the yellow phosphorus electric furnace to produce the yellow phosphorus furnace gas. The application can efficiently utilize the yellow phosphorus tail gas in the yellow phosphorus production process.

Description

Technical Field

[0001] The present application relates to the technical field of yellow phosphorus production tail gas treatment, and more specifically, to a yellow phosphorus furnace gas treatment method and equipment for yellow phosphorus electric furnace production. Background Art

[0002] Yellow phosphorus is a key chemical raw material, widely used in the processing of agricultural fertilizers, flame retardants, food additives, and other fields. It plays a key role in the chemical industry and economic development. Yellow phosphorus is a chemical product characterized by high energy consumption, high pollution, and high resource consumption. The yellow phosphorus production process consumes a lot of electricity in electric furnaces, generating large amounts of gaseous and solid waste such as yellow phosphorus tail gas, slag, and sludge, making it a highly polluting and energy-intensive industry.

[0003] The main component of the yellow phosphorus tail gas in the yellow phosphorus production is CO gas (CO content reaches more than 85%), and the calorific value of yellow phosphorus tail gas can reach 9800kJ / Nm , so yellow phosphorus tail gas is a kind of important resource and high-quality energy. At present, in the yellow phosphorus production process, yellow phosphorus tail gas can not be efficiently utilized. Simultaneously, owing to containing more dust in the yellow phosphorus tail gas, therefore need to purify before yellow phosphorus tail gas is reused, cause the difficulty of yellow phosphorus tail gas reused to increase, make the cost that yellow phosphorus tail gas is carried out purification treatment higher. Therefore, need the processing method of yellow phosphorus tail gas to be improved to improve the production effect of yellow phosphorus tail gas. Summary of the Invention

[0004] The purpose of this application is to provide a yellow phosphorus furnace gas treatment method and equipment for yellow phosphorus electric furnace production, which solves the technical problem of not being able to efficiently utilize yellow phosphorus tail gas in the yellow phosphorus production process, and achieves the technical effect of efficiently utilizing yellow phosphorus tail gas in the yellow phosphorus production process.

[0005] An embodiment of the present application provides a method for treating yellow phosphorus furnace gas for yellow phosphorus electric furnace production, the method comprising: obtaining a yellow phosphorus furnace gas temperature value of yellow phosphorus furnace gas discharged from a yellow phosphorus electric furnace, and performing electrostatic precipitator on the yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas; transporting the dust-removed yellow phosphorus furnace gas to a condensation tower for yellow phosphorus extraction to obtain yellow phosphorus condensed tail gas, and transporting the yellow phosphorus condensed tail gas to a hot blast furnace for combustion to generate a hot air flow; determining a first flow rate and a second flow rate based on the difference between a preset dust removal temperature value and a yellow phosphorus furnace gas temperature value, heating the yellow phosphorus furnace gas to the dust removal temperature value before electrostatic precipitator by the hot air flow of the first flow rate, and drying and heating phosphate ore by the hot air flow of the second flow rate, and transporting the dried and heated phosphate ore to a yellow phosphorus electric furnace to produce yellow phosphorus furnace gas.

[0006] In one possible implementation, the first flow rate and the second flow rate are determined based on the difference between a preset dust removal temperature value and a yellow phosphorus furnace gas temperature value, including: obtaining the sequential yellow phosphorus furnace gas temperature value within a preset time period, and determining the difference between the preset dust removal temperature value and a plurality of sequential yellow phosphorus furnace gas temperature values ​​as a sequential yellow phosphorus furnace gas temperature adjustment value; wherein the preset dust removal temperature value is a fixed value; based on the sequential yellow phosphorus furnace gas temperature adjustment value, determining the sequential first flow rate for heating the yellow phosphorus furnace gas by the hot air flow before electrostatic precipitator, and obtaining the sequential second flow rate by subtracting the sequential first flow rate from the sequential hot air flow rate generated by the combustion in the hot blast furnace.

[0007] In another possible implementation, the method further includes: in the process of electrostatically precipitating the yellow phosphorus furnace gas to obtain the dust-removed yellow phosphorus furnace gas, obtaining the time-sequential dust removal temperature drop value of the yellow phosphorus furnace gas, and determining the time-sequential first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator according to the time-sequential yellow phosphorus furnace gas temperature adjustment value and the time-sequential dust removal temperature drop value.

[0008] In another possible implementation, the method further includes: determining the time-sequential phosphate ore input amount of the phosphate ore to be input into the yellow phosphorus electric furnace according to the time-sequential yellow phosphorus furnace gas temperature adjustment value and the time-sequential second flow rate.

[0009] In another possible implementation, the method further includes: in the process of electrostatically precipitating the yellow phosphorus furnace gas to obtain the dust-removed yellow phosphorus furnace gas, sequentially precipitating the yellow phosphorus furnace gas through three electrostatic precipitators, obtaining the time-series yellow phosphorus furnace gas flow values ​​passing through the three electrostatic precipitators, and obtaining the time-series first temperature value, the time-series second temperature value and the time-series third temperature value; wherein the time-series first temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the first electrostatic precipitator, the time-series second temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the second electrostatic precipitator, and the time-series third temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the third electrostatic precipitator; determining The second temperature difference between the first temperature value and the second temperature value is determined, and the second supplementary flow is determined according to the first temperature value, the second temperature difference and the flow rate of the yellow phosphorus furnace gas. The hot air flow of the second supplementary flow is introduced at the inlet of the second electrostatic precipitator to heat the yellow phosphorus furnace gas. The third temperature difference between the second temperature value and the third temperature value is determined, and the third supplementary flow is determined according to the second temperature value, the third temperature difference and the flow rate of the yellow phosphorus furnace gas. The hot air flow of the third supplementary flow is introduced at the inlet of the third electrostatic precipitator to heat the yellow phosphorus furnace gas.

[0010] In another possible implementation, the method also includes: determining a supplementary heating time in the third flow rate of the time sequence that is greater than a preset third supplementary flow rate, and when the supplementary heating time is greater than the preset first supplementary heating time, heating the outer wall of the electrostatic precipitator by the hot air flow of the fourth flow rate; when the supplementary heating time is greater than the preset second supplementary heating time, issuing a prompt message for inspecting the third electrostatic precipitator; wherein the preset second supplementary heating time is greater than the preset first supplementary heating time.

[0011] An embodiment of the present application also provides a yellow phosphorus furnace gas treatment device for yellow phosphorus electric furnace production, which adopts the yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production as described in any of the above items, including: an electrostatic precipitator for electrostatically removing yellow phosphorus furnace gas; a hot air furnace for burning yellow phosphorus condensed tail gas obtained after condensing the yellow phosphorus furnace gas to generate a hot air flow; a first temperature sensor for detecting the yellow phosphorus furnace gas temperature value of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace; a first flow controller for controlling a first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator; a second flow controller for controlling a second flow rate of the hot air flow for drying and heating phosphate ore; and a control component for determining the first flow rate and the second flow rate based on the difference between a preset dust removal temperature value and the yellow phosphorus furnace gas temperature value.

[0012] In another possible implementation, the control component is also used to: obtain the time-series yellow phosphorus furnace gas temperature value within a preset time period, and determine the difference between the preset dust removal temperature value and multiple yellow phosphorus furnace gas temperature values ​​in the time sequence as the time-series yellow phosphorus furnace gas temperature adjustment value; according to the time-series yellow phosphorus furnace gas temperature adjustment value, determine the time-series first flow rate of the hot air flow to heat the yellow phosphorus furnace gas before electrostatic precipitator, and subtract the time-series first flow rate from the time-series hot air flow rate generated by the hot blast furnace combustion to obtain the time-series second flow rate.

[0013] In another possible implementation, a second temperature sensor is further included, which is used to detect the time-sequential dust removal temperature drop value of the yellow phosphorus furnace gas during the process of electrostatically precipitating the yellow phosphorus furnace gas to obtain the dust-removed yellow phosphorus furnace gas; the control component is also used to determine the time-sequential first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator based on the time-sequential yellow phosphorus furnace gas temperature adjustment value and the time-sequential dust removal temperature drop value.

[0014] In another possible implementation, the control component is further configured to determine the time-sequential phosphate ore input amount to be fed into the yellow phosphorus electric furnace based on the time-sequential yellow phosphorus furnace gas temperature adjustment value and the time-sequential second flow rate.

[0015] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0016] The embodiment of the present application provides a yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production, the method comprising: obtaining a yellow phosphorus furnace gas temperature value of yellow phosphorus furnace gas discharged from a yellow phosphorus electric furnace, and performing electrostatic precipitator on the yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas; transporting the dust-removed yellow phosphorus furnace gas to a condensation tower for yellow phosphorus extraction to obtain yellow phosphorus condensed tail gas, and transporting the yellow phosphorus condensed tail gas to a hot blast furnace for combustion to generate a hot air flow; determining a first flow rate and a second flow rate according to the difference between a preset dust removal temperature value and a yellow phosphorus furnace gas temperature value, heating the yellow phosphorus furnace gas to the dust removal temperature value before electrostatic precipitator removal by the hot air flow of the first flow rate, and drying and heating phosphate rock by the hot air flow of the second flow rate, and transporting the dried and heated phosphate rock to a yellow phosphorus electric furnace to produce yellow phosphorus furnace gas. The yellow phosphorus furnace gas treatment method in the embodiment of the present application can efficiently utilize yellow phosphorus tail gas, effectively reduce energy consumption in yellow phosphorus production, reduce the amount of mud phosphorus produced by the yellow phosphorus tail gas, and improve the production effect of yellow phosphorus. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. 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 any creative work.

[0018] Figure 1 A schematic flow chart of a method for treating yellow phosphorus furnace gas used in yellow phosphorus electric furnace production provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the workflow of a method for treating yellow phosphorus furnace gas used in yellow phosphorus electric furnace production provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the workflow of another method for treating yellow phosphorus furnace gas used in yellow phosphorus electric furnace production provided in an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the control structure of a yellow phosphorus furnace gas treatment device for yellow phosphorus electric furnace production provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] It should be noted that when a component or structure is referred to as being “fixed to” or “disposed on” another component or structure, it may be directly on the other component or structure or indirectly on the other component or structure. When a component or structure is referred to as being “connected to” another component or structure, it may be directly connected to the other component or structure or indirectly connected to the other component or structure.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or a component or structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0026] Currently, yellow phosphorus tail gas cannot be efficiently utilized in yellow phosphorus production processes. Furthermore, because yellow phosphorus tail gas contains a lot of dust, it needs to be purified before reuse, making it more difficult to reuse and increasing the cost of purifying the gas.

[0027] Based on the above reasons, the embodiment of the present application provides a yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production, the method comprising: obtaining the yellow phosphorus furnace gas temperature value of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace, and performing electrostatic precipitator on the yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas; transporting the dust-removed yellow phosphorus furnace gas to a condensing tower for yellow phosphorus extraction to obtain yellow phosphorus condensed tail gas, and transporting the yellow phosphorus condensed tail gas to a hot blast furnace for combustion to generate a hot air flow; determining a first flow rate and a second flow rate according to the difference between a preset dust removal temperature value and a yellow phosphorus furnace gas temperature value, heating the yellow phosphorus furnace gas to the dust removal temperature value before electrostatic precipitator by the hot air flow of the first flow rate, and drying and heating the phosphate ore by the hot air flow of the second flow rate, and transporting the dried and heated phosphate ore to the yellow phosphorus electric furnace to produce yellow phosphorus furnace gas. The yellow phosphorus furnace gas treatment method in the embodiment of the present application can efficiently utilize the yellow phosphorus tail gas, effectively reduce the energy consumption in yellow phosphorus production, reduce the amount of mud phosphorus produced by the yellow phosphorus tail gas, and improve the production effect of yellow phosphorus.

[0028] In some scenarios, a yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production according to an embodiment of the present application can be applied to the production of yellow phosphorus. The yellow phosphorus furnace gas can be heated before dust removal by the yellow phosphorus tail gas, and the phosphate rock can be heated and dried by the yellow phosphorus tail gas, thereby improving the production effect of yellow phosphorus.

[0029] The following is a detailed description of a method for treating yellow phosphorus furnace gas for yellow phosphorus electric furnace production provided in an embodiment of the present application with reference to specific examples.

[0030] Figure 1 A schematic flow chart of a yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production provided in an embodiment of the present application is shown as follows: Figure 1 As shown, the method includes S110 to S120, and S110 to S120 are described in detail below.

[0031] S110: Obtaining a temperature of yellow phosphorus gas discharged from a yellow phosphorus electric furnace, performing electrostatic precipitator (ESP) on the yellow phosphorus gas to obtain dedusted yellow phosphorus gas, conveying the dedusted yellow phosphorus gas to a condensation tower for yellow phosphorus extraction to obtain yellow phosphorus condensed tail gas, and conveying the yellow phosphorus condensed tail gas to a hot blast furnace for combustion to generate a hot air flow.

[0032] Figure 2 A schematic diagram of the workflow of a yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, when the method in the embodiment of the present application is working, the yellow phosphorus furnace gas temperature value t1 of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace 4 can be first obtained, and then the temperature of the yellow phosphorus furnace gas can be subsequently controlled according to the yellow phosphorus furnace gas temperature value t1.

[0033] Currently, yellow phosphorus production primarily utilizes traditional processes. Phosphate rock and other raw materials react in a yellow phosphorus electric furnace, producing yellow phosphorus furnace gas containing phosphorus vapor. This gas is then directly transported to a condensation tower for phosphorus removal, where it is then refined to produce the yellow phosphorus product. However, in this electric furnace process, the yellow phosphorus furnace gas contains the phosphorus product as well as impurities such as CO, SiF₄, H₂S, fine phosphate rock powder, and coke dust. These impurities, along with the phosphorus product, enter the condensation system. After phosphorus removal in the condensation tower, a large amount of a latex-like mixture—phosphorus sludge—is produced within the tower. Every ton of yellow phosphorus produced generates 150-250 kg of phosphorus sludge, containing 25%-50% elemental phosphorus. Phosphorus sludge can be recovered by combustion hydration to produce phosphoric acid and by distillation to recover elemental phosphorus. However, recovering yellow phosphorus from phosphorus sludge is costly, increasing recovery costs and potentially causing environmental pollution.

[0034] In the embodiment of the present application, the yellow phosphorus furnace gas can be subjected to electrostatic precipitator to obtain dust-removed yellow phosphorus furnace gas, so that the dust amount in the yellow phosphorus furnace gas is reduced and then enters the condensation tower 5, thereby effectively reducing the amount of mud phosphorus generated in the condensation tower 5, and can reduce the high cost of recovering yellow phosphorus from the mud phosphorus, reduce the phosphorus recovery cost, and avoid environmental pollution.

[0035] In the embodiment of the present application, the dust in the yellow phosphorus furnace gas is efficiently separated by the electrostatic precipitator 1, thereby preventing the dust from entering the phosphorus collection system, thereby reducing the generation of sludge phosphorus from the source, and further reducing the energy consumption and carbon emissions of the entire yellow phosphorus production process.

[0036] During operation, the dust-removed yellow phosphorus furnace gas can be transported to a condensation tower for yellow phosphorus extraction to achieve the production of yellow phosphorus. After the yellow phosphorus is extracted, yellow phosphorus condensed tail gas is obtained, and the yellow phosphorus condensed tail gas is yellow phosphorus tail gas. In the embodiment of the present application, the yellow phosphorus condensed tail gas can be efficiently utilized. The yellow phosphorus condensed tail gas is transported to a hot blast furnace for combustion to generate a hot air flow, and the yellow phosphorus condensed tail gas can be utilized by utilizing the hot air flow.

[0037] S120. Determine a first flow rate and a second flow rate based on the difference between a preset dust removal temperature value and a yellow phosphorus furnace gas temperature value, heat the yellow phosphorus furnace gas to the dust removal temperature value before electrostatic precipitator by the hot air flow of the first flow rate, and dry and heat the phosphate rock by the hot air flow of the second flow rate, and transport the dried and heated phosphate rock to the yellow phosphorus electric furnace to produce yellow phosphorus furnace gas.

[0038] In an embodiment of the present application, when the hot air flow obtained by burning the yellow phosphorus condensed tail gas is reused, the first flow rate and the second flow rate can be determined based on the difference between the preset dust removal temperature value and the yellow phosphorus furnace gas temperature value, and then the yellow phosphorus furnace gas can be heated to the dust removal temperature value before electrostatic precipitator by the hot air flow of the first flow rate, so that the temperature of the yellow phosphorus furnace gas is increased to avoid the condensation of yellow phosphorus in the yellow phosphorus furnace gas during the electrostatic precipitator, so that the electrostatic precipitator process can proceed smoothly.

[0039] For example, the first flow rate may be controlled by a first flow rate controller 31 , and the second flow rate may be controlled by a second flow rate controller 32 .

[0040] At the same time, the phosphate rock can be dried and heated by the hot air flow of the second flow rate, so that the moisture on the phosphate rock is dried, and the dried and heated phosphate rock is transported to the yellow phosphorus electric furnace to produce yellow phosphorus furnace gas.

[0041] For example, when the phosphate rock is dried and heated, water in the phosphate rock can be dried and the phosphate rock can be heated to 200°C.

[0042] In the embodiment of the present application, after the furnace charge is dried and heated, the

[0043] The efficiency of the yellow phosphorus electric furnace can reduce the power consumption and coke usage of the yellow phosphorus electric furnace, promote the stable operation and control of the yellow phosphorus electric furnace, and thus reduce the energy consumption of the yellow phosphorus electric furnace.

[0044] For example, when the yellow phosphorus furnace gas is heated to the dust removal temperature value before the electrostatic precipitator by the hot air flow of the first flow rate, the hot air flow and the yellow phosphorus furnace gas can be directly mixed to heat the yellow phosphorus furnace gas.

[0045] The beneficial effect brought about by the above-mentioned implementation method is that a hot air flow is generated by burning the yellow phosphorus tail gas, and the yellow phosphorus furnace gas is heated to the dust removal temperature value before electrostatic precipitator by the hot air flow of the first flow rate, which can avoid the yellow phosphorus in the yellow phosphorus furnace gas from condensing in the electrostatic precipitator equipment during the electrostatic precipitator process, so that the electrostatic precipitator process can proceed smoothly.

[0046] The beneficial effect brought about by the above-mentioned implementation method is that an electrostatic precipitator is introduced after the yellow phosphorus electric furnace and before the condensation tower, and most of the dust in the yellow phosphorus furnace gas is removed by the electrostatic precipitator before the yellow phosphorus is condensed and absorbed. The yellow phosphorus furnace gas after dust separation is then used to recover elemental phosphorus by the condensation tower, which greatly reduces the amount of sludge phosphorus generated and can improve the primary yield of yellow phosphorus, thereby reducing the cost of sludge phosphorus recovery, reducing the load of crude phosphorus refining, shortening the cycle of yellow phosphorus refining, avoiding pollution caused by sludge phosphorus treatment, and reducing the overall energy consumption of yellow phosphorus production.

[0047] The beneficial effect brought about by the above-mentioned implementation method is that, by burning the yellow phosphorus tail gas to generate a hot air flow, the hot air flow of the second flow rate is used to heat the phosphate rock, which can increase the temperature of the phosphate rock entering the furnace, thereby improving the efficiency of the yellow phosphorus electric furnace and reducing the power consumption of the yellow phosphorus electric furnace; drying the water in the phosphate rock and reducing the amount of coke (or coal); after the water in the phosphate rock is dried, the side reactions in the phosphate reduction process caused by water can also be reduced, avoiding water from becoming an impurity in the process gas, which has an adverse effect on pipelines, equipment, etc., and ensuring the stable operation and control of the phosphorus furnace; increasing the outlet temperature of the yellow phosphorus furnace gas, creating conditions for the electrostatic precipitator of the yellow phosphorus furnace gas.

[0048] The beneficial effect brought about by the above-mentioned implementation method is that the first flow rate and the second flow rate are determined according to the difference between the preset dust removal temperature value and the yellow phosphorus furnace gas temperature value. The hot air flow of the first flow rate is used to heat the yellow phosphorus furnace gas and then perform electrostatic precipitator removal, which can avoid the temperature of the yellow phosphorus furnace gas being too high and causing damage to the electrostatic precipitator equipment, and can also reduce the water consumption in the condensation process of yellow phosphorus production. The hot air flow of the second flow rate is used to dry the phosphate rock, which can ensure that the phosphate rock is effectively dried, so that the production process of yellow phosphorus can be effectively controlled, and the temperature control effect of the yellow phosphorus furnace gas is improved.

[0049] In some implementations, in the above S120, the first flow rate and the second flow rate are determined according to the difference between the preset dust removal temperature value and the yellow phosphorus furnace gas temperature value, including S121 to S122. S121 to S122 are described in detail below.

[0050] S121. Obtaining a time series yellow phosphorus furnace gas temperature value within a preset time period, and determining a difference between a preset dust removal temperature value and a plurality of time series yellow phosphorus furnace gas temperature values ​​as a time series yellow phosphorus furnace gas temperature adjustment value. The preset dust removal temperature value is a fixed value.

[0051] When the method in the embodiment of the present application is working, the time-series yellow phosphorus furnace gas temperature value within a preset time period can be obtained. The time-series yellow phosphorus furnace gas temperature value is the yellow phosphorus furnace gas temperature value at multiple time points within the preset time period, and then the difference between the preset dust removal temperature value and the multiple yellow phosphorus furnace gas temperature values ​​in the time sequence can be determined as the time-series yellow phosphorus furnace gas temperature adjustment value. The time-series yellow phosphorus furnace gas temperature adjustment value represents the difference between the yellow phosphorus furnace gas temperature value and the preset dust removal temperature value in the time sequence, and then the yellow phosphorus furnace gas temperature can be controlled by the time-series yellow phosphorus furnace gas temperature adjustment value.

[0052] Exemplarily, the preset dust removal temperature value may be a fixed value, and the preset dust removal temperature value may be 250°C to 300°C.

[0053] Exemplarily, the sequential yellow phosphorus furnace gas temperature value can be 90°C to 120°C. When the sequential yellow phosphorus furnace gas temperature value fluctuates within the range of 90°C to 120°C, the method can be used to adjust the flow rate of hot air flow for heating the yellow phosphorus furnace gas to control the temperature of the yellow phosphorus furnace gas entering the electrostatic precipitator.

[0054] S122. Determine a first time-series flow rate for heating the yellow phosphorus furnace gas before electrostatic precipitator according to the time-series yellow phosphorus furnace gas temperature adjustment value, and obtain a second time-series flow rate by subtracting the first time-series flow rate from the time-series hot air flow rate generated by the hot blast furnace combustion.

[0055] When heating the yellow phosphorus furnace gas, the time sequence first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator can be determined according to the time sequence yellow phosphorus furnace gas temperature adjustment value, and then the yellow phosphorus furnace gas can be heated according to the first flow rate corresponding to each moment according to the time sequence first flow rate.

[0056] When determining the second flow rate, the time-series second flow rate may be obtained by subtracting the time-series first flow rate from the time-series hot air flow rate generated by the hot blast stove combustion. The time-series second flow rate corresponds to the second flow rate at each moment.

[0057] For example, when determining the time-series first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator according to the time-series yellow phosphorus furnace gas temperature adjustment value, the time-series first flow rate can be determined according to a deep learning model based on an LSTM neural network.

[0058] The beneficial effect of the above implementation method is that according to the time sequence yellow phosphorus

[0059] The furnace gas temperature adjustment value determines the first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before the electrostatic precipitator, which can accurately control the flow rate of the hot air flow for heating the yellow phosphorus furnace gas, improve the stability of the temperature control of the yellow phosphorus furnace gas, effectively avoid the condensation of yellow phosphorus in the yellow phosphorus furnace gas, and improve the control effect of the yellow phosphorus furnace gas temperature.

[0060] The beneficial effect brought about by the above implementation method is that the time-series hot air flow generated by the hot blast furnace combustion is subtracted from the time-series first flow to obtain the time-series second flow, thereby realizing efficient utilization of the hot air flow generated by the combustion of yellow phosphorus tail gas.

[0061] In some implementations, the above method also includes: in the process of electrostatically precipitating the yellow phosphorus furnace gas to obtain the dust-removed yellow phosphorus furnace gas, obtaining the time-sequential dust removal temperature drop value of the yellow phosphorus furnace gas, and determining the time-sequential first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator according to the time-sequential yellow phosphorus furnace gas temperature adjustment value and the time-sequential dust removal temperature drop value.

[0062] In order to improve the control effect of the yellow phosphorus furnace gas dust removal process, in the process of electrostatically precipitating the yellow phosphorus furnace gas to obtain the dust-removed yellow phosphorus furnace gas, the time-sequential dust removal temperature drop value of the yellow phosphorus furnace gas can be obtained. The time-sequential dust removal temperature drop value is the temperature drop of the yellow phosphorus furnace gas during the electrostatic dust removal process. Then, the temperature of the yellow phosphorus furnace gas can be controlled according to the time-sequential dust removal temperature drop value to avoid condensation of the yellow phosphorus furnace gas in the electrostatic precipitator.

[0063] Exemplarily, the sequential dust removal temperature drop value is the drop value of the yellow phosphorus furnace gas temperature in the electrostatic precipitator at different moments in the sequence. The sequential dust removal temperature drop value can be obtained by performing temperature detection at different positions of the electrostatic precipitator by multiple temperature sensors.

[0064] When heating the yellow phosphorus furnace gas, the time-series first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator can be determined according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series dust removal temperature drop value. The time-series yellow phosphorus furnace gas temperature adjustment value represents the temperature that needs to be adjusted before the yellow phosphorus furnace gas enters the electrostatic precipitator, and the time-series dust removal temperature drop value represents the drop in temperature of the yellow phosphorus furnace gas in the electrostatic precipitator. Then, the temperature of the yellow phosphorus furnace gas can be accurately controlled according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series dust removal temperature drop value. Then, the yellow phosphorus furnace gas can be heated by the hot air flow of the time-series first flow rate, thereby achieving accurate control of the temperature of the yellow phosphorus furnace gas.

[0065] For example, when the first dust removal temperature drop value in the sequential dust removal temperature drop value is too high, by controlling the temperature of the yellow phosphorus furnace gas according to the sequential yellow phosphorus furnace gas temperature adjustment value and the sequential dust removal temperature drop value, the sequential first flow rate can be controlled to increase accordingly to increase the heat for heating the yellow phosphorus furnace gas, so as to offset the rapid temperature drop of the yellow phosphorus furnace gas caused by the first dust removal temperature drop value in the sequential dust removal temperature drop value being too high.

[0066] For example, when the temperature of the yellow phosphorus furnace gas is controlled according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series dust removal temperature drop value, the time-series first flow rate can be determined according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series dust removal temperature drop value through a deep learning model based on an LSTM neural network.

[0067] The beneficial effect brought about by the above-mentioned implementation method is that the time-series yellow phosphorus furnace gas temperature adjustment value represents the temperature that needs to be adjusted before the yellow phosphorus furnace gas enters the electrostatic precipitator, and the time-series dust removal temperature drop value represents the temperature drop of the yellow phosphorus furnace gas in the electrostatic precipitator. Then, the temperature of the yellow phosphorus furnace gas can be accurately controlled according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series dust removal temperature drop value, thereby improving the temperature control effect of the yellow phosphorus furnace gas in the electrostatic precipitator and effectively preventing the yellow phosphorus in the yellow phosphorus furnace gas from condensing in the electrostatic precipitator.

[0068] In some implementations, the above method further includes: determining the time-series phosphate ore input amount of the phosphate ore to be input into the yellow phosphorus electric furnace according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series second flow rate.

[0069] like Figure 2 As shown, when phosphate rock is fed into the yellow phosphorus electric furnace 4, in order to ensure the drying effect of the phosphate rock, the timed amount of phosphate rock fed into the yellow phosphorus electric furnace can be determined according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed second flow rate. The timed yellow phosphorus furnace gas temperature adjustment value represents the temperature of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace, and the timed second flow rate represents the flow rate of the hot air flow for drying the phosphate rock. Then, the amount of phosphate rock fed into the yellow phosphorus electric furnace can be precisely controlled according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed second flow rate.

[0070] The beneficial effect brought about by the above-mentioned implementation method is that the amount of phosphate ore put into the yellow phosphorus electric furnace is accurately controlled according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series second flow rate, so as to avoid the input of too much phosphate ore resulting in poor phosphate ore drying effect, and also to avoid the input of too little phosphate ore affecting production efficiency.

[0071] In some implementations, the above method further includes S210 to S220, and S210 to S220 are described in detail below.

[0072] S210. In a process of performing electrostatic precipitator treatment on yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas, the yellow phosphorus furnace gas is sequentially precipitated through three electrostatic precipitators to obtain time-series flow rates of the yellow phosphorus furnace gas passing through the three electrostatic precipitators, and a first time-series temperature value, a second time-series temperature value, and a third time-series temperature value are obtained. The first time-series temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the first electrostatic precipitator, the second time-series temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the second electrostatic precipitator, and the third time-series temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the third electrostatic precipitator.

[0073] Figure 3 A schematic diagram of the workflow of another method for treating yellow phosphorus furnace gas used in yellow phosphorus electric furnace production provided in the embodiment of the present application is shown in FIG. Figure 3 As shown, in the process of electrostatically precipitating the yellow phosphorus furnace gas to obtain the dust-removed yellow phosphorus furnace gas, the yellow phosphorus furnace gas can be dedusted in sequence by three electrostatic precipitators to improve the dust removal effect of the yellow phosphorus furnace gas. The three electrostatic precipitators can be a first electrostatic precipitator 11, a second electrostatic precipitator 12, and a third electrostatic precipitator 13.

[0074] When the yellow phosphorus furnace gas is dedusted by the first electrostatic precipitator 11, the second electrostatic precipitator 12, and the third electrostatic precipitator 13, the sequential yellow phosphorus furnace gas flow values ​​passing through the three electrostatic precipitators can be obtained, and the sequential yellow phosphorus furnace gas flow values ​​of the three electrostatic precipitators are the same flow value.

[0075] When removing dust from the yellow phosphorus furnace gas, the first temperature value Ts1, the second temperature value Ts2 and the third temperature value Ts3 can be obtained. The first temperature value is the time series temperature value of the yellow phosphorus furnace gas at the outlet of the first electrostatic precipitator, the second temperature value is the time series temperature value of the yellow phosphorus furnace gas at the outlet of the second electrostatic precipitator, and the third temperature value is the time series temperature value of the yellow phosphorus furnace gas at the outlet of the third electrostatic precipitator.

[0076] S220: Determine a second temperature difference between the first temperature value and the second temperature value, determine a second supplementary flow rate based on the first temperature value, the second temperature difference, and the yellow phosphorus furnace gas flow rate, and introduce a hot air flow of the second supplementary flow rate into the inlet of the second electrostatic precipitator to heat the yellow phosphorus furnace gas. Determine a third temperature difference between the second temperature value and the third temperature value, determine a third supplementary flow rate based on the second temperature value, the third temperature difference, and the yellow phosphorus furnace gas flow rate, and introduce a hot air flow of the third supplementary flow rate into the inlet of the third electrostatic precipitator to heat the yellow phosphorus furnace gas.

[0077] When the temperature of the yellow phosphorus furnace gas is controlled, a time-series second temperature difference between the time-series first temperature value and the time-series second temperature value can be determined. The time-series second temperature difference represents the temperature drop value caused by the second electrostatic precipitator 12 removing dust from the yellow phosphorus furnace gas.

[0078] When the temperature of the yellow phosphorus furnace gas is controlled, a time series third temperature difference between the time series second temperature value and the time series third temperature value may be determined. The time series third temperature difference represents a temperature drop value caused by the third electrostatic precipitator 13 removing dust from the yellow phosphorus furnace gas.

[0079] When the yellow phosphorus furnace gas is dedusted by the second electrostatic precipitator 12, the timed second supplementary flow rate can be determined according to the timed first temperature value, the timed second temperature difference value and the timed yellow phosphorus furnace gas flow rate value, and the hot air flow of the timed second supplementary flow rate is introduced at the inlet of the second electrostatic precipitator to heat the yellow phosphorus furnace gas. The timed first temperature value is the temperature of the yellow phosphorus furnace gas entering the second electrostatic precipitator 12, the timed second temperature difference value is the temperature drop value of the yellow phosphorus furnace gas caused by the second electrostatic precipitator 12, and the timed yellow phosphorus furnace gas flow rate value is the flow rate of the yellow phosphorus furnace gas entering the second electrostatic precipitator 12. Therefore, the hot air flow of the timed second supplementary flow rate can be used to supplementally heat the yellow phosphorus furnace gas before it enters the second electrostatic precipitator 12, thereby avoiding condensation of the yellow phosphorus furnace gas in the second electrostatic precipitator 12.

[0080] When the yellow phosphorus furnace gas is dedusted by the third electrostatic precipitator 13, the sequential third temperature difference between the sequential second temperature value and the sequential third temperature value is determined. According to the sequential second temperature value, the sequential third temperature difference and the sequential yellow phosphorus furnace gas flow value, the sequential third supplementary flow is determined, and a hot air flow of the sequential third supplementary flow is introduced at the inlet of the third electrostatic precipitator to heat the yellow phosphorus furnace gas. The sequential second temperature value is the temperature of the yellow phosphorus furnace gas entering the third electrostatic precipitator 13, the sequential third temperature difference is the temperature drop value of the yellow phosphorus furnace gas caused by the third electrostatic precipitator 13, and the sequential yellow phosphorus furnace gas flow value is the flow rate of the yellow phosphorus furnace gas entering the third electrostatic precipitator 13. Therefore, the hot air flow of the sequential third supplementary flow can be used to heat the yellow phosphorus furnace gas before it enters the third electrostatic precipitator 13 to avoid condensation of the yellow phosphorus furnace gas in the third electrostatic precipitator 13.

[0081] The beneficial effect brought about by the above-mentioned implementation method is that when the yellow phosphorus furnace gas is dedusted by the first electrostatic precipitator, the second electrostatic precipitator, and the third electrostatic precipitator, the yellow phosphorus furnace gas is heated before entering the second electrostatic precipitator and the third electrostatic precipitator, thereby avoiding the condensation of yellow phosphorus in the second electrostatic precipitator and the third electrostatic precipitator. While ensuring the dust removal effect of the yellow phosphorus furnace gas, the thermal insulation effect of the yellow phosphorus furnace gas is guaranteed.

[0082] In some implementations, the method further includes determining a supplementary heating duration greater than a preset third flow rate in the time sequence, and when the supplementary heating duration is greater than the preset first supplementary heating duration, heating the outer wall of the electrostatic precipitator with a hot air flow at a fourth flow rate. When the supplementary heating duration is greater than a preset second supplementary heating duration, issuing a prompt to inspect the third electrostatic precipitator. The preset second supplementary heating duration is greater than the preset first supplementary heating duration.

[0083] When the yellow phosphorus furnace gas is dedusted by three electrostatic precipitators, the supplementary heating time that is greater than the preset third flow rate in the time sequence can be determined. The supplementary heating time represents the time period when the third supplementary flow rate in the time sequence is too large. When the supplementary heating time is greater than the preset first supplementary heating time, it means that the flow rate of the supplementary heating of the yellow phosphorus furnace gas is too large and the time is too long. At this time, the outer wall of the electrostatic precipitator can be heated by the hot air flow of the fourth flow rate to ensure the heating effect of the yellow phosphorus furnace gas, and at the same time, the flow rate of the hot air flow introduced into the yellow phosphorus furnace gas can be reduced to ensure the production efficiency of the subsequent condensation of the dust-removed yellow phosphorus furnace gas.

[0084] When the supplementary heating time is longer than the preset second supplementary heating time, and the preset second supplementary heating time is longer than the preset first supplementary heating time, it means that the temperature of the yellow phosphorus furnace gas may drop too much during dust removal due to a fault in the electrostatic precipitator. At this time, a prompt message for inspecting the third electrostatic precipitator can be issued to prompt the electrostatic precipitator to be inspected.

[0085] The beneficial effect brought about by the above-mentioned implementation method is that when the flow rate of the supplementary heating of the yellow phosphorus furnace gas is too large and the time is too long, the outer wall of the electrostatic precipitator is heated by the hot air flow of the fourth flow rate to ensure the heating effect of the yellow phosphorus furnace gas, and at the same time, the flow rate of the hot air flow introduced into the yellow phosphorus furnace gas is reduced to ensure the production efficiency of the subsequent yellow phosphorus condensation of the dust-removed yellow phosphorus furnace gas.

[0086] The beneficial effect brought about by the above-mentioned implementation method is that when the supplementary heating time is greater than the preset second supplementary heating time, and the preset second supplementary heating time is greater than the preset first supplementary heating time, the electrostatic precipitator may have a fault that causes the temperature of the yellow phosphorus furnace gas to drop too much during dust removal, which can prompt the electrostatic precipitator to be inspected and maintained to ensure the working condition of the electrostatic precipitator.

[0087] The embodiment of the present application also provides a yellow phosphorus furnace gas treatment device for yellow phosphorus electric furnace production, which adopts the yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production as described in any of the above items, including an electrostatic precipitator 1 for electrostatically removing the yellow phosphorus furnace gas. A hot blast furnace 2 is used to burn the yellow phosphorus condensed tail gas obtained after the yellow phosphorus furnace gas is condensed to generate a hot air flow. A first temperature sensor 21 is used to detect the yellow phosphorus furnace gas temperature value of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace. A first flow controller 21 is used to control the first flow rate of the hot air flow used to heat the yellow phosphorus furnace gas before electrostatic precipitator. A second flow controller 22 is used to control the second flow rate of the hot air flow used to dry and heat the phosphate ore. A control component 3 is used to determine the first flow rate and the second flow rate based on the difference between the preset dust removal temperature value and the yellow phosphorus furnace gas temperature value.

[0088] Figure 4 A schematic diagram of the control structure of a yellow phosphorus furnace gas treatment device for yellow phosphorus electric furnace production provided in an embodiment of the present application is shown as follows: Figure 4 As shown, the yellow phosphorus furnace gas treatment equipment for yellow phosphorus electric furnace production can, when in operation, perform electrostatic precipitator 1 on the yellow phosphorus furnace gas, and burn the yellow phosphorus condensed tail gas obtained after condensing the yellow phosphorus furnace gas through the hot blast furnace 2 to generate a hot air flow, and detect the yellow phosphorus furnace gas temperature value of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace through the first temperature sensor 21, and control the first flow rate of the hot air flow used to heat the yellow phosphorus furnace gas before electrostatic precipitator 21, and control the second flow rate of the hot air flow used to dry and heat the phosphate ore through the second flow controller 22, and the control component 3 can determine the first flow rate and the second flow rate according to the difference between the preset dust removal temperature value and the yellow phosphorus furnace gas temperature value.

[0089] The beneficial effects brought about by the embodiments of the present application have been described in the above method and will not be repeated here.

[0090] In some implementations, the control component 3 is further configured to obtain sequential yellow phosphorus furnace gas temperature values ​​within a preset time period, and determine the difference between a preset dust removal temperature value and a plurality of sequential yellow phosphorus furnace gas temperature values ​​as a sequential yellow phosphorus furnace gas temperature adjustment value. Based on the sequential yellow phosphorus furnace gas temperature adjustment value, a first sequential flow rate of the hot air flow for heating the yellow phosphorus furnace gas prior to electrostatic precipitator (EDF) is determined, and a second sequential flow rate is obtained by subtracting the first sequential flow rate from the sequential hot air flow rate generated by combustion in the hot blast furnace.

[0091] The beneficial effects brought about by the embodiments of the present application have been described in the above method and will not be repeated here.

[0092] In some implementations, the yellow phosphorus furnace gas treatment equipment for yellow phosphorus electric furnace production further includes a second temperature sensor 22. Second temperature sensor 22 is configured to detect a time-sequential dust removal temperature drop value of the yellow phosphorus furnace gas during the process of subjecting the yellow phosphorus furnace gas to electrostatic precipitator (EDP) to obtain the dedusted yellow phosphorus furnace gas. Control component 3 is further configured to determine a time-sequential first flow rate of the hot air flow for heating the yellow phosphorus furnace gas prior to EDP based on the time-sequential yellow phosphorus furnace gas temperature adjustment value and the time-sequential dust removal temperature drop value.

[0093] The beneficial effects brought about by the embodiments of the present application have been described in the above method and will not be repeated here.

[0094] In some implementations, the control component 3 is further configured to determine a time-sequential phosphate ore input amount to be fed into the yellow phosphorus electric furnace according to the time-sequential yellow phosphorus furnace gas temperature adjustment value and the time-sequential second flow rate.

[0095] The beneficial effects brought about by the embodiments of the present application have been described in the above method and will not be repeated here.

[0096] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A method for treating yellow phosphorus furnace gas used in yellow phosphorus electric furnace production, characterized in that: The method comprises: The yellow phosphorus furnace gas temperature value of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace is obtained, and the yellow phosphorus furnace gas is subjected to electric dust removal to obtain dust-removed yellow phosphorus furnace gas; the dust-removed yellow phosphorus furnace gas is transported to a condensation tower for yellow phosphorus extraction to obtain yellow phosphorus condensed tail gas, and the yellow phosphorus condensed tail gas is transported to a hot blast furnace for combustion to generate a hot air flow; Determining a first flow rate and a second flow rate based on a difference between a preset dust removal temperature and a yellow phosphorus furnace gas temperature, heating the yellow phosphorus furnace gas to the dust removal temperature before electrostatic precipitator removal by the hot air flow of the first flow rate, and drying and heating the phosphate rock by the hot air flow of the second flow rate, and transporting the dried and heated phosphate rock to the yellow phosphorus electric furnace to produce yellow phosphorus furnace gas; Determining the first flow rate and the second flow rate according to the difference between the preset dust removal temperature value and the yellow phosphorus furnace gas temperature value includes: Obtaining a time-series yellow phosphorus furnace gas temperature value within a preset time period, and determining a difference between a preset dust removal temperature value and a plurality of time-series yellow phosphorus furnace gas temperature values ​​as a time-series yellow phosphorus furnace gas temperature adjustment value; wherein the preset dust removal temperature value is a fixed value; According to the time-series yellow phosphorus furnace gas temperature adjustment value, the time-series first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator is determined, and then the yellow phosphorus furnace gas can be heated according to the first flow rate corresponding to each moment according to the time-series first flow rate. The time-series second flow rate is obtained by subtracting the time-series first flow rate from the time-series hot air flow rate generated by the hot blast furnace combustion.

2. The yellow phosphorus furnace gas treatment method according to claim 1, wherein: The method further comprises: In the process of electrostatically precipitating yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas, the time-series dust removal temperature drop value of the yellow phosphorus furnace gas is obtained. According to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series dust removal temperature drop value, the time-series first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator is determined.

3. The yellow phosphorus furnace gas treatment method according to claim 2, wherein: The method further comprises: According to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series second flow rate, the time-series phosphate ore input amount to the yellow phosphorus electric furnace is determined.

4. The yellow phosphorus furnace gas treatment method according to claim 3, wherein: The method further comprises: In a process of performing electrostatic precipitator treatment on yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas, the yellow phosphorus furnace gas is sequentially dedusted through three electrostatic precipitators, and time-series yellow phosphorus furnace gas flow values ​​passing through the three electrostatic precipitators are obtained, and a time-series first temperature value, a time-series second temperature value, and a time-series third temperature value are obtained; wherein the time-series first temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the first electrostatic precipitator, the time-series second temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the second electrostatic precipitator, and the time-series third temperature value is the time-series temperature value of the yellow phosphorus furnace gas at the outlet of the third electrostatic precipitator; Determine the time sequence second temperature difference between the time sequence first temperature value and the time sequence second temperature value, determine the time sequence second supplementary flow according to the time sequence first temperature value, the time sequence second temperature difference and the time sequence yellow phosphorus furnace gas flow value, and introduce the hot air flow of the time sequence second supplementary flow at the inlet of the second electrostatic precipitator to heat the yellow phosphorus furnace gas; determine the time sequence third temperature difference between the time sequence second temperature value and the time sequence third temperature value, determine the time sequence third supplementary flow according to the time sequence second temperature value, the time sequence third temperature difference and the time sequence yellow phosphorus furnace gas flow value, and introduce the hot air flow of the time sequence third supplementary flow at the inlet of the third electrostatic precipitator to heat the yellow phosphorus furnace gas.

5. The yellow phosphorus furnace gas treatment method according to claim 4, wherein: The method further comprises: Determine a supplementary heating time that is greater than a preset third supplementary flow rate in the time sequence, and when the supplementary heating time is greater than the preset first supplementary heating time, heat the outer wall of the electrostatic precipitator by the hot air flow of the fourth flow rate; When the supplementary heating time is longer than the preset second supplementary heating time, a prompt message is issued to inspect the third electrostatic precipitator; wherein the preset second supplementary heating time is longer than the preset first supplementary heating time.

6. A yellow phosphorus furnace gas treatment device for yellow phosphorus electric furnace production, characterized in that: The yellow phosphorus furnace gas treatment method for yellow phosphorus electric furnace production according to any one of claims 1 to 5 comprises: Electrostatic precipitator equipment, used for electrostatic precipitator of yellow phosphorus furnace gas; A hot air furnace is used to burn the yellow phosphorus condensed tail gas obtained after the yellow phosphorus furnace gas is condensed to generate a hot air flow; A first temperature sensor is used to detect the temperature of yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace; a first flow controller for controlling a first flow of a hot gas stream for heating the yellow phosphorus furnace gas before electrostatic precipitator removal; a second flow controller for controlling a second flow of the hot air flow for drying and heating the phosphate rock; The control component is used to determine the first flow rate and the second flow rate according to the difference between the preset dust removal temperature value and the yellow phosphorus furnace gas temperature value.

7. The yellow phosphorus furnace gas treatment equipment according to claim 6, characterized in that: The control unit is also used to: The time-series yellow phosphorus furnace gas temperature value within a preset time period is obtained, and the difference between the preset dust removal temperature value and multiple yellow phosphorus furnace gas temperature values ​​in the time sequence is determined as the time-series yellow phosphorus furnace gas temperature adjustment value; according to the time-series yellow phosphorus furnace gas temperature adjustment value, the time-series first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator is determined, and the time-series second flow rate is obtained by subtracting the time-series first flow rate from the time-series hot air flow rate generated by the hot blast furnace combustion.

8. The yellow phosphorus furnace gas treatment equipment according to claim 7, characterized in that: The invention also includes a second temperature sensor, which is used to detect the time-series dust removal temperature drop value of the yellow phosphorus furnace gas during the process of performing electric dust removal on the yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas; The control component is also used to determine the time-series first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series dust removal temperature drop value.

9. The yellow phosphorus furnace gas treatment equipment according to claim 8, characterized in that: The control component is also used to determine the timed phosphate ore input amount into the yellow phosphorus electric furnace based on the timed yellow phosphorus furnace gas temperature adjustment value and the timed second flow rate.

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