Yellow phosphorus furnace gas treatment method and equipment for yellow phosphorus electric furnace production

Abstract

The invention 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 electric furnace process production, and the method comprises the following steps: obtaining a yellow phosphorus furnace gas temperature value of yellow phosphorus furnace gas discharged by a yellow phosphorus electric furnace, and carrying out electric precipitation on the yellow phosphorus furnace gas to obtain dedusted yellow phosphorus furnace gas; conveying the dedusted yellow phosphorus furnace gas to a condensing tower for yellow phosphorus extraction to obtain yellow phosphorus condensed tail gas, and conveying the yellow phosphorus condensed tail gas to a hot blast stove for combustion to generate hot air; determining a first flow and a second flow according to a difference value 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 electric dust removal through the hot air flow of the first flow, and drying and heating the phosphate ore through the hot air flow of the second flow, and the dried and heated phosphate ore is conveyed into a yellow phosphorus electric furnace to produce yellow phosphorus furnace gas. The yellow phosphorus tail gas can be efficiently utilized in the yellow phosphorus production process.

Description

Technical Field

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

[0002] Yellow phosphorus is one of the important basic chemical raw materials, widely used in agricultural fertilizers, flame retardants, food additives and other processing fields, and plays a key role in the chemical industry and economic development. Yellow phosphorus is a "high energy consumption, high pollution and high resource consumption" chemical product. The electric furnace in the yellow phosphorus production process consumes a lot of electricity and produces a large amount of yellow phosphorus tail gas, slag and mud phosphorus and other gas and solid wastes, which belongs to a high pollution and high energy consumption 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 the yellow phosphorus tail gas can reach 9800kJ / Nm3, so the yellow phosphorus tail gas is a kind of important resource and high-quality energy. At present, in the yellow phosphorus production process, the yellow phosphorus tail gas can not be efficiently utilized. Meanwhile, owing to containing more dust in the yellow phosphorus tail gas, it is necessary to purify the yellow phosphorus tail gas before recycling it, causing the difficulty of recycling the yellow phosphorus tail gas to increase, making the cost of purifying the yellow phosphorus tail gas higher. Therefore, it is necessary to improve the processing method of the yellow phosphorus tail gas to improve the production effect of the yellow phosphorus tail gas. Summary of the invention

[0004] The purpose of the present application is to provide a method and equipment for treating yellow phosphorus furnace gas used in yellow phosphorus electric furnace production, which solves the technical problem that yellow phosphorus tail gas cannot be efficiently utilized 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] The embodiment of the present application provides a method for treating yellow phosphorus furnace gas used in yellow phosphorus electric furnace production, the method comprising: obtaining a 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 dedusted yellow phosphorus furnace gas; transporting the dedusted 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 a 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 a yellow phosphorus electric furnace to produce yellow phosphorus furnace gas.

[0006] In a possible implementation, a first flow rate and a second flow rate are determined based on a difference between a preset dust removal temperature value and a yellow phosphorus furnace gas temperature value, including: obtaining a sequential 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 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 a sequential first flow rate for heating the yellow phosphorus furnace gas with hot air flow before electrostatic precipitator, and obtaining a sequential second flow rate by subtracting the sequential first flow rate from the sequential hot air flow rate generated by the combustion of the hot blast furnace.

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

[0008] In another possible implementation, the method further includes: determining the timed phosphate ore input amount to be input into the yellow phosphorus electric furnace according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed 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 dedusted yellow phosphorus furnace gas, dedusting the yellow phosphorus furnace gas in turn 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 yellow phosphorus furnace gas flow value, and 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 yellow phosphorus furnace gas flow value, and 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] 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 for electrostatically precipitating yellow phosphorus furnace gas; a hot blast furnace for burning 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 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; a control component for determining the first flow rate and the second flow rate according to the difference between a preset dust removal temperature value and a 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 time 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 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.

[0013] In another possible implementation, it also includes a second temperature sensor, which is used to detect the timed 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 dedusted yellow phosphorus furnace gas; the control component is also used to determine the timed first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before the electrostatic precipitator according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed dust removal temperature drop value.

[0014] In another possible implementation, the control component is also used to determine the timed phosphate ore input amount to be input into the yellow phosphorus electric furnace according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed second flow rate.

[0015] Compared with the prior art, the embodiments of the present invention 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 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; conveying the dust-removed yellow phosphorus furnace 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; 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 conveying 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 the production of yellow phosphorus, can 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[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 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 the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present 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 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 should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] At present, the yellow phosphorus tail gas cannot be efficiently utilized in the yellow phosphorus production process. At the same time, since the yellow phosphorus tail gas contains a lot of dust, the yellow phosphorus tail gas needs to be purified before it is reused, which increases the difficulty of reusing the yellow phosphorus tail gas and makes the cost of purifying the yellow phosphorus tail gas high.

[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 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 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 the production of yellow phosphorus, can 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 exhaust gas, and the phosphate ore can be heated and dried by the yellow phosphorus exhaust gas, thereby improving the production effect of yellow phosphorus.

[0029] The following is a specific example of a method for treating yellow phosphorus furnace gas for yellow phosphorus electric furnace production provided in an embodiment of the present application.

[0030] 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 is shown in FIG. Figure 1 As shown, the method includes S110 to S120, and S110 to S120 are described in detail below.

[0031] S110, obtaining the temperature value of the yellow phosphorus furnace gas discharged from the 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 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.

[0032] 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 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] At present, yellow phosphorus production mainly adopts the traditional yellow phosphorus production process. After the phosphate rock and other raw materials react in the yellow phosphorus electric furnace, yellow phosphorus furnace gas containing phosphorus vapor is obtained. The yellow phosphorus furnace gas containing phosphorus vapor is directly transported to the condensation tower to receive phosphorus, and then refined to obtain yellow phosphorus products. However, in the electric furnace method of yellow phosphorus production, the yellow phosphorus furnace gas contains phosphorus products and impurities such as CO, SiF4, H2S, fine phosphate rock powder, coke powder, etc. These impurities enter the condensation system together with the phosphorus products. After the condensation tower receives phosphorus, a large amount of latex-like mixture - mud phosphorus will be produced in the condensation tower. Every ton of yellow phosphorus produced will produce 150-250kg of mud phosphorus, and the content of elemental phosphorus in the mud phosphorus is 25%-50%. Mud phosphorus can be used to produce phosphoric acid by combustion hydration method and recover elemental phosphorus by "distillation method". The cost of recovering yellow phosphorus from mud phosphorus is high. Mud phosphorus not only increases the cost of phosphorus recovery, but also may cause 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 mud phosphorus from the source, and thus 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 condensation tail gas is obtained. The yellow phosphorus condensation tail gas is the yellow phosphorus tail gas. In the embodiment of the present application, the yellow phosphorus condensation tail gas can be efficiently utilized. The yellow phosphorus condensation tail gas is transported to a hot blast furnace for combustion to generate a hot air flow, and the yellow phosphorus condensation tail gas can be utilized by utilizing the hot air flow.

[0037] S120. Determine a first flow rate and a second flow rate according to a 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 means of a hot air flow of the first flow rate, and dry and heat the phosphate ore by means of a hot air flow of the second flow rate, and convey the dried and heated phosphate ore to a yellow phosphorus electric furnace to produce yellow phosphorus furnace gas.

[0038] In the 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 according to 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 the electrostatic precipitator by the hot air flow of the first flow rate, so that after the temperature of the yellow phosphorus furnace gas is increased, the condensation of yellow phosphorus in the yellow phosphorus furnace gas during the electrostatic precipitator is avoided, so that the electrostatic precipitator process can proceed smoothly.

[0039] Exemplarily, 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] Illustratively, 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, and can promote the stable operation and control of the yellow phosphorus electric furnace, thereby reducing the energy consumption of the yellow phosphorus electric furnace.

[0044] Exemplarily, 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 the electrostatic precipitator by the hot air flow of the first flow rate, which can avoid the condensation of yellow phosphorus in the yellow phosphorus furnace gas 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 mud phosphorus generated and can improve the primary yield of yellow phosphorus, thereby reducing the cost of mud phosphorus recovery, reducing the load of crude phosphorus refining, shortening the cycle of yellow phosphorus refining, avoiding pollution caused by mud phosphorus treatment, and reducing the comprehensive 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 phosphate ore is heated by the hot air flow of the second flow rate, the temperature of the phosphate ore entering the furnace can be increased, and then the efficiency of the yellow phosphorus electric furnace can be improved, and the power consumption of the yellow phosphorus electric furnace can be reduced; the water in the phosphate ore can be dried to reduce the amount of coke (or coal); after the water in the phosphate ore is dried, the side reactions in the phosphate reduction process caused by water can be reduced, and water can be prevented from becoming an impurity in the process gas, which has an adverse effect on pipelines, equipment, etc., and ensures the stable operation and control of the phosphorus furnace; the outlet temperature of the yellow phosphorus furnace gas is increased to create 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 for electrostatic precipitator, which can avoid the damage of the electrostatic precipitator equipment caused by excessive temperature of the yellow phosphorus furnace gas, 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 ore, which can ensure that the phosphate ore 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, and S121 to S122 are specifically described below.

[0050] S121, obtaining the time series 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 time series yellow phosphorus furnace gas temperature values ​​as the 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, and 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 hot air flow rate for heating the yellow phosphorus furnace gas to control the temperature of the yellow phosphorus furnace gas entering the electrostatic precipitator.

[0054] S122. Determine the first time-series flow rate of the hot air flow for heating the yellow phosphorus furnace gas before the electrostatic precipitator according to the time-series yellow phosphorus furnace gas temperature adjustment value, and obtain the 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 sequential first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator can be determined according to the sequential 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 in the sequential 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 combustion of the hot blast stove, and the time-series second flow rate corresponds to the second flow rate at each moment.

[0057] Exemplarily, 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 the 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 rate generated by the hot blast furnace combustion is subtracted from the time-series first flow rate to obtain the time-series second flow rate, thereby realizing the efficient use 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 timed dust removal temperature drop value of the yellow phosphorus furnace gas, and determining the timed first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before the electrostatic precipitator according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed dust removal temperature drop value.

[0062] In order to improve the control effect of the dust removal process of yellow phosphorus furnace gas, the time-sequential dust removal temperature drop value of the yellow phosphorus furnace gas can be obtained during the process of electrostatic precipitator to obtain the dust-removed yellow phosphorus furnace gas. The time-sequential dust removal temperature drop value is the temperature drop of the yellow phosphorus furnace gas during the electrostatic precipitator 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 sequential order, and the sequential dust removal temperature drop value can be obtained by performing temperature detection at different positions of the electrostatic precipitator using multiple temperature sensors.

[0064] When heating the yellow phosphorus furnace gas, the sequential first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before the electrostatic precipitator can be determined according to the sequential yellow phosphorus furnace gas temperature adjustment value and the sequential dust removal temperature drop value. The sequential 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 sequential 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 sequential yellow phosphorus furnace gas temperature adjustment value and the sequential dust removal temperature drop value. Then, the yellow phosphorus furnace gas can be heated by the hot air flow of the sequential first flow rate, thereby achieving accurate control of the temperature of the yellow phosphorus furnace gas.

[0065] Exemplarily, 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 excessively 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] Exemplarily, 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 sequential 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 sequential 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 sequential yellow phosphorus furnace gas temperature adjustment value and the sequential dust removal temperature drop value, thereby improving the temperature control effect of the yellow phosphorus furnace gas in the electrostatic precipitator, and can effectively prevent the yellow phosphorus in the yellow phosphorus furnace gas from condensing in the electrostatic precipitator.

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

[0069] like Figure 2 As shown, when phosphate ore is fed into the yellow phosphorus electric furnace 4, in order to ensure the drying effect of the phosphate ore, the timed amount of phosphate ore 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 hot air flow for drying the phosphate ore. Then, the amount of phosphate ore fed into the yellow phosphorus electric furnace can be accurately 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 input into the yellow phosphorus electric furnace is accurately controlled according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed second flow rate, so as to avoid excessive amount of phosphate ore input resulting in poor phosphate ore drying effect, and also to avoid too little amount of phosphate ore input 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 the process of performing electrostatic precipitator on yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas, dedusting the yellow phosphorus furnace gas in turn 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. Among them, 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.

[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 present application is as follows: Figure 3 As shown, in the process of electrostatically precipitating yellow phosphorus furnace gas to obtain dedusted yellow phosphorus furnace gas, the yellow phosphorus furnace gas can be dedusted in sequence by three electrostatic precipitators to improve the dedusting 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 yellow phosphorus furnace gas, a first temperature value Ts1, a second temperature value Ts2 and a 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 the sequential second temperature difference between the sequential first temperature value and the sequential second temperature value, determine the sequential second supplementary flow according to the sequential first temperature value, the sequential second temperature difference and the sequential yellow phosphorus furnace gas flow value, and introduce the hot air flow of the sequential second supplementary flow into the inlet of the second electrostatic precipitator to heat the yellow phosphorus furnace gas. Determine the sequential third temperature difference between the sequential second temperature value and the sequential third temperature value, determine the sequential third supplementary flow according to the sequential second temperature value, the sequential third temperature difference and the sequential yellow phosphorus furnace gas flow value, and introduce the hot air flow of the sequential third supplementary flow 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 sequential second temperature difference between the sequential first temperature value and the sequential second temperature value may be determined, and the sequential 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 sequential third temperature difference between the sequential second temperature value and the sequential third temperature value may be determined, and the sequential third temperature difference represents the 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 a 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, so as to avoid 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 timed third temperature difference between the timed second temperature value and the timed third temperature value is determined, and the timed third supplementary flow is determined according to the timed second temperature value, the timed third temperature difference and the timed yellow phosphorus furnace gas flow value, and a hot air flow of the timed third supplementary flow is introduced at the inlet of the third electrostatic precipitator to heat the yellow phosphorus furnace gas. The timed second temperature value is the temperature of the yellow phosphorus furnace gas entering the third electrostatic precipitator 13, the timed third temperature difference is the temperature drop value of the yellow phosphorus furnace gas caused by the third electrostatic precipitator 13, and the timed yellow phosphorus furnace gas flow value is the flow rate of the yellow phosphorus furnace gas entering the third electrostatic precipitator 13. Then, the hot air flow of the timed 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. Under the premise of ensuring the dedusting 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 by the hot air flow of the fourth flow rate. When the supplementary heating duration is greater than the preset second supplementary heating duration, issuing a prompt message for overhauling 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 timing third supplementary flow can be determined. The supplementary heating time represents the time period when the third supplementary flow rate in the timing 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 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 hot air flow rate introduced into the yellow phosphorus furnace gas is reduced to ensure the production efficiency of the subsequent condensation of the dedusted yellow phosphorus furnace gas.

[0084] 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, 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 may 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 supplementary heating of the yellow phosphorus furnace gas is too large for 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, while reducing the flow rate of the hot air flow introduced into the yellow phosphorus furnace gas to ensure the subsequent production efficiency of 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 precipitating 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 a 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 a 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 according to 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 in FIG. Figure 4 As shown, when the yellow phosphorus furnace gas treatment equipment for yellow phosphorus electric furnace production is working, the electric dust removal equipment 1 can be used to electrostatically remove the yellow phosphorus furnace gas, and the yellow phosphorus condensed tail gas obtained after the yellow phosphorus furnace gas is condensed can be burned by the hot blast furnace 2 to generate a hot air flow, and the yellow phosphorus furnace gas temperature value of the yellow phosphorus furnace gas discharged from the yellow phosphorus electric furnace can be detected by the first temperature sensor 21, and the first flow controller 21 can be used to control the first flow rate of the hot air flow used to heat the yellow phosphorus furnace gas before the electric dust removal, and the second flow rate of the hot air flow used to dry and heat the phosphate ore can be controlled by 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 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, the time-series first flow rate of the hot air flow to heat the yellow phosphorus furnace gas before the electric dust removal is determined, and the time-series hot air flow rate generated by the hot blast furnace combustion is subtracted from the time-series first flow rate to obtain the time-series second flow rate.

[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, which is used to detect the time-series dust removal temperature drop value of the yellow phosphorus furnace gas during the process of performing electrostatic dust removal on the yellow phosphorus furnace gas to obtain dust-removed yellow phosphorus furnace gas. The control component 3 is also used to determine the time-series first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before the electrostatic dust removal according to the time-series yellow phosphorus furnace gas temperature adjustment value and the time-series 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 also used to determine the timed phosphate ore input amount to be input into the yellow phosphorus electric furnace according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed 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 substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope 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; 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 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, and the phosphate ore is dried and heated by the hot air flow of the second flow rate. The dried and heated phosphate ore is transported to the yellow phosphorus electric furnace to produce yellow phosphorus furnace gas.

2. The yellow phosphorus furnace gas treatment method according to claim 1, characterized in that: 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 the time-series 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 yellow phosphorus furnace gas temperature values ​​in the time sequence as the time-series yellow phosphorus furnace gas temperature adjustment value; wherein the preset dust removal temperature value is a fixed value; According to the sequential yellow phosphorus furnace gas temperature adjustment value, the sequential first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator is determined, and the sequential hot air flow rate generated by the hot blast furnace combustion is subtracted from the sequential first flow rate to obtain the sequential second flow rate.

3. The yellow phosphorus furnace gas treatment method according to claim 2, characterized in that: The method further comprises: In the process of electrostatically precipitating yellow phosphorus furnace gas to obtain dedusted yellow phosphorus furnace gas, the timed dust removal temperature drop value of the yellow phosphorus furnace gas is obtained, and the timed first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before electrostatic precipitator is determined according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed dust removal temperature drop value.

4. The yellow phosphorus furnace gas treatment method according to claim 3, characterized in that: The method further comprises: According to the sequential yellow phosphorus furnace gas temperature adjustment value and the sequential second flow rate, the sequential phosphate ore input amount to the yellow phosphorus electric furnace is determined.

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

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

7. 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 6 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 the electrostatic precipitator; A second flow controller, used for controlling a second flow of the hot air flow used for drying and heating the phosphate ore; 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.

8. The yellow phosphorus furnace gas treatment equipment according to claim 7, characterized in that: The control components are 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 the 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.

9. The yellow phosphorus furnace gas treatment equipment according to claim 8, characterized in that: The second temperature sensor is used to detect the time-sequential dust removal temperature drop value of the yellow phosphorus furnace gas during the process of electrostatically removing the yellow phosphorus furnace gas to obtain the dust-removed yellow phosphorus furnace gas; The control component is also used to determine the timed first flow rate of the hot air flow for heating the yellow phosphorus furnace gas before the electrostatic precipitator according to the timed yellow phosphorus furnace gas temperature adjustment value and the timed dust removal temperature drop value.

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

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