Phosphorus smelting equipment and phosphorus smelting method

Abstract

The application discloses a yellow phosphorus smelting equipment, which comprises a flue gas filter, a flue gas cooler, a combustible gas storage, and a combustible gas burner.

Description

TECHNICAL FIELD

[0001] The present application relates to an industrial kiln charging material distribution and preheating device, and a yellow phosphorus smelting equipment and a yellow phosphorus smelting method using the same. BACKGROUND

[0002] The electric furnace, also known as the electric furnace, is an industrial kiln for smelting ores using electric energy. The feature is that the energy generated by the electric arc and the large current passing through the charging material (which can be referred to as material) generates resistance heat to melt the material. Due to the changes in material particle size, composition and other factors, the resistance is not stable, which leads to unstable furnace conditions, resulting in changes in the material molten pool state, material imbalance, crust, material collapse, electrode breakage, etc. At present, the key to ensuring the stability of the electric furnace operation is to ensure the stability of the material entering the electric furnace, including ensuring the stability of the material composition, particle size, particle size ratio, moisture content, and charging temperature, thereby ensuring the stability of the material resistance value, and further eliminating temperature unevenness, molten pool state changes, material collapse or electrode breakage, etc., and realizing the stable operation of the electric furnace. At present, the material composition, particle size, particle size ratio, and moisture content can be ensured by the batching system: the particle ore can be pre-classified according to the composition and particle size, or the concentrate sand can be made into different particle size pellets according to the requirements, and then the batching and uniform mixing can be carried out according to the requirements; the water content can be ensured to be stable by pre-drying (or within a specified moisture range).

[0003] The difficulty of ensuring the stability of the electric furnace operation is to ensure the stability of the material charging temperature. At present, in order to control the material charging temperature, the method of preheating the material is adopted. Specifically, the waste heat boiler and other wall heat exchangers are used to cool the smelting flue gas discharged from the electric furnace and recover the heat in the smelting flue gas, and then the heat is used to heat the material through another group of wall heat exchangers. The problem of this preheating method is mainly that: first, the temperature of the smelting flue gas discharged from the electric furnace is not very stable, so it is difficult to ensure the stability of the material charging temperature. Second, the preheating of the material is not well coordinated with the control of the material charging (feeding). The wall heat exchanger used in the above preheating method is independent of the material feeding system, and the material is usually preheated before being input into the material feeding system, while the material feeding system is controlled according to the smelting condition of the electric furnace, so the material charging temperature is unstable. SUMMARY

[0004] The purpose of the present application is to provide an industrial kiln charging material distribution and preheating device to preheat the charging material of the industrial kiln, especially the electric furnace, to improve the stability of the material charging temperature. In addition, the purpose of the present application is also to provide a yellow phosphorus smelting equipment and a yellow phosphorus smelting method to improve the stability of the material charging temperature.

[0005] In a first aspect, an industrial kiln feed material distribution and preheating device is provided, comprising: a material distribution component including at least one input, at least two outputs, and a material distribution mechanism for distributing material input from the at least one input to the at least two outputs; a material input component connected to the at least one input for feeding pre-configured material to the at least one input; a material output component connected to the at least two outputs respectively for separately guiding material output from each output into a feed inlet of an industrial kiln; and a material preheating component including a preheating air inlet pipeline, a preheating tail gas pipeline, and a preheating air flow adjusting device, the preheating air inlet pipeline being used for guiding preheating air from a preheating air source into the material distribution mechanism to preheat the material, the preheating tail gas pipeline being used for guiding preheated tail gas out, and the preheating air flow adjusting device being used for timely adjusting the flow of preheating air; wherein the material distribution mechanism has a tank body, the at least one input is arranged at an upper portion of the tank body, the at least two outputs are arranged at a lower portion of the tank body, and an outlet end of the preheating air inlet pipeline and an inlet end of the preheating tail gas pipeline are respectively connected to and communicated with the tank body.

[0006] In a second aspect, an industrial kiln feed material distribution and preheating device is provided, comprising: a material distribution component including at least one input, at least two outputs, and a material distribution mechanism for distributing material input from the at least one input to the at least two outputs; a material input component connected to the at least one input for feeding pre-configured material to the at least one input; a material output component connected to the at least two outputs respectively for separately guiding material output from each output into a feed inlet of an industrial kiln; and a material preheating component including a preheating air inlet pipeline, a preheating tail gas pipeline, and a preheating air flow adjusting device, the preheating air inlet pipeline being used for guiding preheating air from a preheating air source into each material output component to preheat the material, the preheating tail gas pipeline being used for guiding preheated tail gas out, and the preheating air flow adjusting device being used for timely adjusting the flow of preheating air; wherein each material output component is a discharge pipe arranged one-to-one below the at least two outputs, and the preheating air inlet pipeline has a preheating air inlet pipe connected and communicated one-to-one with each discharge pipe.

[0007] In a third aspect, a yellow phosphorus smelting device is provided, comprising: a flue gas filter, which filters and dedusts smelting flue gas of an electric furnace for producing yellow phosphorus; a flue gas cooler, which cools the filtered and dedusted gas to make yellow phosphorus in the gas precipitate and separate in liquid form and obtain combustible gas mainly composed of carbon monoxide; a combustible gas storage device, which recycles and stores the combustible gas; a combustible gas burner, which receives the combustible gas output by the combustible gas storage device and burns the combustible gas to generate preheated gas; and a furnace charging material distribution and preheating device, which distributes the material to be charged into the electric furnace and preheats the material to be charged into the electric furnace using the preheated gas and then introduces the preheated material into a charging port of the electric furnace. The furnace charging material distribution and preheating device adopts the industrial furnace charging material distribution and preheating device of the first aspect or the industrial furnace charging material distribution and preheating device of the second aspect.

[0008] In a fourth aspect, a yellow phosphorus smelting method is provided, which adopts the yellow phosphorus smelting device of the third aspect.

[0009] The industrial furnace charging material distribution and preheating device combines the distribution and preheating of the material before charging into the furnace, preheats the material by direct contact between the preheated gas and the material, and adjusts the flow of the preheated gas in time through the preheated gas flow adjusting device, thereby improving the stability of the material charging temperature.

[0010] The yellow phosphorus smelting device and the yellow phosphorus smelting method adopt the industrial furnace charging material distribution and preheating device of the first aspect or the industrial furnace charging material distribution and preheating device of the second aspect, which can improve the stability of the yellow phosphorus electric furnace by improving the stability of the material charging temperature.

[0011] The present application will be further described below in conjunction with the drawings and specific embodiments. Additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be learned by practice. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings constituting a part of this specification are used to assist the understanding of the present application, and the content provided in the drawings and the description thereof in the specification can be used to explain the present application, but do not constitute an improper limitation on the present application.

[0013] Figure 1 A schematic diagram of an industrial furnace charging material distribution and preheating device according to an embodiment of the present application.

[0014] Figure 2 A schematic diagram of an industrial furnace charging material distribution and preheating device according to an embodiment of the present application. Figure 1 A schematic diagram of an industrial furnace charging material distribution and preheating device according to an embodiment of the present application.

[0015] Figure 3It is a schematic view of an industrial furnace material distribution and preheating device according to an embodiment of the present application.

[0016] Figure 4 It is a schematic view of an industrial furnace material distribution and preheating device according to an embodiment of the present application. Figure 3 It is a schematic view of an industrial furnace material distribution and preheating device according to an embodiment of the present application.

[0017] Figure 5 It is a schematic view of an industrial furnace material distribution and preheating device according to an embodiment of the present application.

[0018] Figures 1-5 The dotted line with arrow indicates the material running direction, the solid line with arrow indicates the preheating gas running direction, and the dotted line with arrow indicates the yellow phosphorus running direction. DETAILED DESCRIPTION

[0019] The present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will be able to implement the present application based on these descriptions.

[0020] Before the present application is described in detail below, it is important to understand that the technology solutions and technical features provided in each part including the following description can be combined with each other without conflict. In addition, in the case of possibility, these technology solutions, technical features and related combinations can be given a specific technical subject and protected by a related patent.

[0021] The present application involved in the following description is generally only a part of the embodiments and not all the embodiments, based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of patent protection.

[0022] Regarding the terms and units in this specification: the terms "include", "contain", "have" and any variations thereof in this specification and the corresponding claims and related parts are intended to cover non-exclusive inclusion. Other related terms and units can be reasonably interpreted based on the relevant content of this specification.

[0023] Figure 1 It is a schematic view of an industrial furnace material distribution and preheating device according to an embodiment of the present application. Figure 2 It is a schematic view of an industrial furnace material distribution and preheating device according to an embodiment of the present application. Figure 1 It is a schematic view of an industrial furnace material distribution and preheating device according to an embodiment of the present application. Figures 1-2 As shown in the figure, an industrial furnace material distribution and preheating device, here "industrial furnace" is a submerged arc furnace 2, and the top of the submerged arc furnace 2 is provided with a group of electrodes 21 and a feed inlet distributed around the electrodes 21.

[0024] The industrial furnace material distribution and preheating device comprises a material distribution component 11, a material input component 12, a material output component 13 and a material preheating component 14.

[0025] The material distribution component 11 comprises at least one input part, at least two output parts and a material distribution mechanism for distributing the material input by the at least one input part to the at least two output parts.

[0026] The material input component 12 is connected to the at least one input part for conveying pre-configured material to the at least one input part.

[0027] The material output component 13 is respectively connected to the at least two output parts for separately guiding the material output by each output part to different feeding ports of the electric arc furnace 2.

[0028] The material preheating component 14 comprises a preheating air inlet pipeline 141, a preheating tail gas pipeline 142 and a preheating air flow adjusting device 143, the preheating air inlet pipeline 141 is used for guiding preheating air from a preheating air source into the material distribution mechanism to preheat the material, the preheating tail gas pipeline 142 is used for guiding the preheated tail gas out, and the preheating air flow adjusting device 143 is used for timely adjusting the flow of the preheating air.

[0029] The material distribution mechanism has a tank body 111, the at least one input part is arranged at the upper part of the tank body 111, the at least two output parts are arranged at the lower part of the tank body 111, and the outlet end of the preheating air inlet pipeline 141 and the inlet end of the preheating tail gas pipeline 142 are respectively connected to and communicated with the tank body 111.

[0030] Optionally, the preheating air source is a high-temperature flue gas discharge source after fuel combustion. For example, the fuel is combustible gas mainly composed of carbon monoxide after the smelting flue gas of the electric arc furnace 2 is purified.

[0031] Optionally, the lower part of the tank body 111 is a conical hopper 112, and the at least two output parts are arranged below the side of the conical hopper 112 and are respectively connected to the one-to-one corresponding material output components.

[0032] In addition, the outlet end of the preheating air inlet pipeline 141 is arranged at the bottom of the conical hopper 112 and is communicated with the tank body through a porous material that can permeate the preheating air but not the material. In this way, the preheating air can fully contact the material in the conical hopper 112, and the material can be prevented from being consolidated at the bottom of the conical hopper 112.

[0033] The porous material can be made into a plate shape and installed at the bottom of the conical hopper 112, so that the preheated gas can pass through the material in the conical hopper 112 uniformly. The porous material can be sintered ceramic porous material or sintered metal porous material, so as to withstand the preheated gas with high temperature.

[0034] Specifically, the material output components 13 are respectively and one-to-one arranged below the at least two output portions.

[0035] Optionally, the preheated gas inlet pipeline 141 further has a preheated gas inlet pipe 144 connected and communicated one-to-one with each of the discharge pipes 131. Generally, each of the preheated gas inlet pipes 144 is provided with a flow regulating valve 147.

[0036] Obviously, the preheated gas inlet pipe 144 is used to input preheated gas to the corresponding discharge pipe 131, so as to further heat and keep warm the material in the discharge pipe 131, and also play a role of air seal, eliminate the safety hazard of the contact of the electric arc furnace 2 with external air, and avoid the negative pressure in the electric arc furnace 2.

[0037] Optionally, the tank body 111 is further provided with a material level detection device, the at least two output portions are connected with the corresponding material output components 13 through one-to-one discharge valves 113, and the material distribution component realizes the material distribution of the output portion 13 corresponding to any discharge valve 113 by reducing the material level in the tank body 111 by a set material level value when any discharge valve 113 is opened and the remaining discharge valves 113 are closed.

[0038] Optionally, the tank body 111 is provided with an auxiliary filter 114 located on the outside or inside of the tank body 111 and communicated with the tank body 111, the preheated gas outlet pipeline 142 is arranged at the filtered gas exhaust end of the auxiliary filter 114, and the preheated gas inlet pipeline 141 is provided with a back flushing bypass 145 connected to the filtered gas exhaust end of the auxiliary filter through a shut-off valve 146.

[0039] The industrial furnace charging material distribution and preheating device can distribute and preheat the charging material in the following manner: first, pre-configured material is input into the tank body 111 through the material input component 12, then the preheating gas flow adjusting device 143 (a flow adjusting valve can be used) on the preheating gas inlet pipeline 141 and the opening degree of the flow adjusting valve 147 on each preheating gas inlet pipeline 144 are determined according to the preheating requirement, and the exhaust valve 148 on the preheating tail gas pipeline 142 is opened, at this time, the preheating gas enters the tank body 111 to directly heat the material in the tank body 111, then the material is filtered through the auxiliary filter 114 and discharged from the preheating tail gas pipeline 142. When it is needed to charge the material into a certain feeding port of the electric arc furnace 2, the corresponding material outlet valve 113 connected with the tank body 111 is opened and the remaining material outlet valves 13 are closed, and the charging amount is controlled by controlling the change of the material level in the tank body 111. When it is needed to blow back and clean the auxiliary filter 114 (it can be when the charging is about to be completed), the preheating gas flow adjusting device 143, the exhaust valve 148 and the flow adjusting valve 147 are closed, the shut-off valve 146 is opened, the preheating gas reversely enters the auxiliary filter 114 to reversely clean the filter element in the auxiliary filter 114, then the preheating gas carries the material to flow from the material output component 13 to the electric arc furnace 2, so that the electric arc furnace 2 is in a slightly positive pressure state, and air is prevented from entering the electric arc furnace 2 to cause a safety hazard.

[0040] Figure 3 A schematic view of an industrial furnace charging material distribution and preheating device according to an embodiment of the present application. Figure 4 A schematic view of an industrial furnace charging material distribution and preheating device according to an embodiment of the present application. Figure 3 A schematic view of an industrial furnace charging material distribution and preheating device according to an embodiment of the present application. Figures 3-4 An industrial furnace charging material distribution and preheating device, where the "industrial furnace" is also the electric arc furnace 2, and a group of electrodes 21 and feeding ports distributed around the electrodes 21 are arranged on the top of the electric arc furnace 2.

[0041] The industrial furnace charging material distribution and preheating device comprises a material distribution component 11, a material input component 12, a material output component 13 and a material preheating component 14.

[0042] The material distribution component 11 comprises at least one input part, at least two output parts and a material distribution mechanism for distributing the material input by the at least one input part to the at least two output parts.

[0043] The material input component 12 is connected with the at least one input part and is used to transport pre-configured material to the at least one input part.

[0044] The material output component 13 is respectively connected with the at least two output parts and is used to separately guide the material output by each output part into different feeding ports of the electric arc furnace 2.

[0045] The material preheating component 14 comprises a preheating air inlet pipeline 141, a preheating tail gas pipeline 142 and a preheating air flow adjusting device 143, the preheating air inlet pipeline 141 is used for guiding preheating air from a preheating air source into each material output component 13 to preheat the material, the preheating tail gas pipeline 142 is used for guiding the preheated tail gas out, and the preheating air flow adjusting device 143 is used for timely adjusting the flow of the preheating air.

[0046] The material output component 13 is a corresponding discharge pipe 131 arranged below each of the at least two output portions, and the preheating air inlet pipeline 141 has a preheating air inlet pipe 144 connected and communicated with each discharge pipe.

[0047] Optionally, the preheating air source is a high-temperature flue gas discharge source after fuel combustion. For example, the fuel is smelting flue gas of the ore smelting furnace 2, and the smelting flue gas is purified to form combustible gas mainly composed of carbon monoxide.

[0048] Optionally, the material distribution component 11 is provided with an auxiliary filter 115 located on the outside or inside of the material distribution component 11 and communicating with the inside of the material distribution component 11, and the preheating tail gas pipeline 142 is arranged at the filtered gas exhaust end of the auxiliary filter 115.

[0049] In addition, the preheating air inlet pipeline 141 is provided with a back-blowing bypass connected to the filtered gas exhaust end of the auxiliary filter 115 through a shut-off valve.

[0050] Optionally, the material distribution component 11 has a material conveying bin 116, and the at least one input portion and the at least two output portions are arranged on the bin body of the material conveying bin 116.

[0051] Specifically, the material conveying bin 116 is a ring-shaped bin or a square bin, and the material distribution mechanism comprises a feeding mechanism arranged in the bin body of the material conveying bin 116, which is used for receiving the material input from the at least one input portion and conveying the material to any one of the at least two output portions and then outputting the material to the corresponding discharge pipe 131 of the output portion.

[0052] Specifically, the feeding mechanism comprises a running track 117 and a material conveying vehicle 118 installed on the running track 117 and capable of walking along the running track 117, and the material conveying vehicle is provided with a material loader for loading and unloading the material.

[0053] The auxiliary filter 115 can be arranged on the material conveying vehicle 118 and move synchronously with the material conveying vehicle 118. The auxiliary filter 115 is in communication with the material loader.

[0054] The material transport vehicle 118 may also be provided with a weighing device for weighing the weight of the material loaded in the loader.

[0055] The above-mentioned industrial furnace material distribution and preheating device can distribute and preheat the material entering the furnace in the following manner: first, the pre-configured material is input into the loader of the material transport vehicle 118 through the material input component 12 (the material input amount is determined according to the weighing device), and then the material transport vehicle 118 moves to the feed pipe 131 where the material needs to be fed to a certain feed port of the blast furnace 2, and the opening of the preheating gas flow regulating device 143 (a flow regulating valve can be used) on the preheating air intake pipe 141 is determined according to the preheating needs, and the exhaust valve on the preheating exhaust gas pipe 142 is opened. At this time, the preheating gas enters the feed pipe 131 and the loader to directly heat the material, and then is filtered through the auxiliary filter 115 and discharged from the preheating exhaust gas pipe 142. Open the valve at the bottom of the loader to start adding material. When adding is almost complete, close the preheating gas flow control device 143 and the exhaust valve, open the shut-off valve, and the preheating gas will flow back into the auxiliary filter 115, thereby reversely cleaning the filter element in the auxiliary filter 115. The preheating gas then carries the material through the discharge pipe 131 to the submerged arc furnace 2, ensuring a slightly positive pressure inside the submerged arc furnace 2 and preventing air from entering the submerged arc furnace 2 and creating safety hazards. Repeat the above steps to add material to the corresponding feed ports of other discharge pipes 131.

[0056] Figure 5 Schematic diagram of yellow phosphorus smelting equipment according to an embodiment of the present invention. Figure 5 As shown, a yellow phosphorus smelting equipment includes: a flue gas filter 31 for filtering and removing dust from the smelting flue gas of the submerged arc furnace 4 for producing yellow phosphorus; a flue gas cooler 32 for cooling the gas after filtering and removing dust so that the yellow phosphorus in the gas is precipitated and separated in liquid form to obtain a combustible gas mainly composed of carbon monoxide; a combustible gas storage 33 for recovering and storing the combustible gas; a combustible gas burner 34 for receiving the combustible gas output by the combustible gas storage and burning the combustible gas to generate preheated gas; a submerged arc furnace inlet material distribution and preheating device 35 for distributing the material about to enter the submerged arc furnace and preheating it with the preheated gas before introducing it into the feed port of the submerged arc furnace; wherein the submerged arc furnace inlet material distribution and preheating device 35 adopts Figures 1-2 The industrial furnace material distribution and preheating device shown or Figures 3-4 The industrial furnace material distribution and preheating device shown.

[0057] The above describes the relevant contents of this application. Based on these descriptions, a person of ordinary skill in the art will be able to implement this application. Based on the above contents of this specification, all other embodiments obtained by a person of ordinary skill in the art without making any creative efforts should fall within the scope of patent protection.

Claims

1. A yellow phosphorus smelting equipment, comprising: Flue gas filters, which filter and remove dust from the smelting flue gas from the submerged arc furnace used to produce yellow phosphorus; A flue gas cooler cools the filtered and dust-removed gas to separate the yellow phosphorus in the gas into a liquid form to obtain a combustible gas mainly composed of carbon monoxide; A combustible gas storage device is provided for recovering and storing the combustible gas; the device is characterized by further comprising: a combustible gas burner for receiving the combustible gas outputted from the combustible gas storage device and burning the combustible gas to generate preheated gas; a submerged arc furnace inlet material distribution and preheating device for distributing the material to be fed into the submerged arc furnace and preheating the material with the preheated gas before introducing the material into the feed port of the submerged arc furnace; The device for distributing and preheating materials fed into the ore-bearing furnace comprises: a material distribution component comprising at least one input portion, at least two output portions, and a material distribution mechanism for distributing the materials inputted from the at least one input portion to the at least two output portions; a material input component connected to the at least one input portion for delivering pre-configured materials to the at least one input portion; a material output component connected to the at least two output portions for separately introducing the materials outputted from the corresponding output portions into the feed port of the ore-bearing furnace; a material preheating component comprising a preheating air inlet pipe, ... An exhaust gas pipeline and a preheated gas flow regulating device, wherein the preheated air intake pipeline is used to introduce preheated air from a preheated air source into the material distribution mechanism to preheat the material, the preheated exhaust gas pipeline is used to discharge the preheated exhaust gas, and the preheated gas flow regulating device is used to timely adjust the flow rate of the preheated gas; the material distribution mechanism has a tank body, the at least one input portion is arranged at the upper portion of the tank body, and the at least two output portions are arranged at the lower portion of the tank body, and the outlet end of the preheated air intake pipeline and the inlet end of the preheated exhaust gas pipeline are respectively connected to and in communication with the tank body; The lower part of the tank body is a conical hopper, and the at least two output parts are arranged on the lower side of the conical hopper and are connected to the corresponding material output components; The material output components are respectively provided with feed pipes below the at least two output parts in a one-to-one correspondence, and the preheating air intake pipeline also has a preheating air intake pipe connected and communicated with each feed pipe in a one-to-one correspondence.

2. The yellow phosphorus smelting equipment according to claim 1, characterized in that: The outlet end of the preheating air inlet pipeline is arranged at the bottom of the conical hopper and is connected to the tank body through a porous material that is permeable to the preheating air but not to the material.

3. The yellow phosphorus smelting equipment according to claim 1, characterized in that: A material level detection device is provided in the tank body, and the at least two output parts are connected to the corresponding material output components through one-to-one corresponding discharge valves. The material distribution component realizes material distribution to the output part corresponding to any discharge valve by reducing the material level in the tank body by a set level value when any discharge valve connected to the tank body is opened and the other discharge valves are closed.

4. The yellow phosphorus smelting equipment according to claim 1, characterized in that: The tank body is provided with an auxiliary filter located on the outside or inside of the tank body and connected to the tank body, and the preheating exhaust gas pipeline is arranged at the filtered gas exhaust end of the auxiliary filter; the preheating air intake pipeline is provided with a backflush bypass, and the backflush bypass is connected to the filtered gas exhaust end of the auxiliary filter through a shut-off valve.

5. A yellow phosphorus smelting equipment comprising: Flue gas filters, which filter and remove dust from the smelting flue gas from the submerged arc furnace used to produce yellow phosphorus; A flue gas cooler cools the filtered and dust-removed gas to separate the yellow phosphorus in the gas into a liquid form to obtain a combustible gas mainly composed of carbon monoxide; A combustible gas storage device is provided for recovering and storing the combustible gas; the device is characterized by further comprising: a combustible gas burner for receiving the combustible gas outputted from the combustible gas storage device and burning the combustible gas to generate preheated gas; a submerged arc furnace inlet material distribution and preheating device for distributing the material to be fed into the submerged arc furnace and preheating the material with the preheated gas before introducing the material into the feed port of the submerged arc furnace; The material distribution and preheating device for the ore-bearing furnace comprises: a material distribution component, comprising at least one input part, at least two output parts, and a material distribution mechanism for distributing the material input from the at least one input part to the at least two output parts; a material input component, connected to the at least one input part, for conveying pre-configured material to the at least one input part; a material output component, respectively connected to the at least two output parts, for separately introducing the material output from each output part into the feed port of the ore-bearing furnace; a material preheating component, comprising a preheating air intake pipeline, a preheating exhaust gas pipeline, and a preheating air flow regulating device, the preheating air intake pipeline being used to introduce preheated air from a preheating air source into each material output component to preheat the material, the preheating exhaust gas pipeline being used to discharge the preheated exhaust gas, and the preheating air flow regulating device being used to timely regulate the flow rate of the preheated gas; the material output components are respectively provided with a one-to-one corresponding material discharge pipe below the at least two output parts, and the preheating air intake pipe has a preheating air intake pipe connected and communicated with each discharge pipe in a one-to-one correspondence; The material distribution component has a material conveying bin, the at least one input part and the at least two output parts are distributed on the bin body of the material conveying bin, the material conveying bin is an annular bin or a square bin, and the material distribution mechanism includes a feeding mechanism located in the bin body of the material conveying bin, and the feeding mechanism is used to receive the material input from the at least one input part and transport the material to any one of the at least two output parts, and then output the material to the discharge pipe corresponding to the output part.

6. The yellow phosphorus smelting equipment according to claim 5, characterized in that: The feeding mechanism comprises a running track and a material transport vehicle which is installed on the running track and can move along the running track. The material transport vehicle is provided with a loader for loading and unloading materials.

7. The yellow phosphorus smelting equipment according to claim 6, characterized in that: The material transport vehicle is provided with a weighing device, and the weighing device is used to weigh the weight of the material loaded in the material transport vehicle.

8. A yellow phosphorus smelting method, characterized in that: The yellow phosphorus smelting equipment according to any one of claims 1 to 7 is used.

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