A metering system for yellow phosphorus unloading

Abstract

The present invention discloses a metering system for yellow phosphorus unloading, which relates to the technical field of yellow phosphorus transportation. It includes a pedestal. A weighbridge is provided on the surface of the pedestal. A storage tank is provided on one side of the surface of the pedestal. A heating component is provided on the surface of the pedestal. A bracket is provided on one side of the surface of the pedestal. A guide rod is horizontally provided at the top of the side of the bracket. A conveying component is provided at the end of the guide rod. Hoisting rings are evenly sleeved on the guide rod. A flexible hose is fixedly sleeved at the bottom of the hoisting ring. A connecting pipe is provided at one end of the flexible hose away from the bracket. A floating plate is slidably sleeved at the bottom of the connecting pipe. The present invention can effectively and accurately calculate the volume and mass of yellow phosphorus after the yellow phosphorus tank truck enters the factory, which is convenient for controlling the consumption of yellow phosphorus during use. Moreover, it can effectively exclude the interference of impurities and phosphorus slag on the measurement result, making the metering result more accurate and reliable. In addition, it can accelerate the melting of solid yellow phosphorus and improve work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of yellow phosphorus transportation, and particularly to a metering system for yellow phosphorus discharging. Background Technique

[0002] Yellow phosphorus, also known as white phosphorus, is a white or light yellow semi-transparent solid. It is soft, brittle when cold, and its color darkens when exposed to light. When exposed to air, it produces green phosphorescence and white smoke in the dark. It catches fire at about 40°C in humid air and slightly higher in dry air. When storing yellow phosphorus, due to its flammable nature, it should be stored in water and must be immersed underwater to isolate air. It is stored in a special warehouse with cool and well-ventilated conditions. Moreover, when taking it, it cannot be exposed to air. During the transportation of yellow phosphorus, solid yellow phosphorus is generally transported over long distances by yellow phosphorus tank trucks. After being transported to the enterprise factory, it is necessary to measure the volume of solid yellow phosphorus.

[0003] The traditional measurement method is that after the yellow phosphorus tank truck enters the factory, it is opened to add water and then sealed. The yellow phosphorus in the truck will solidify from liquid state during transportation. In order to accurately control the usage amount of yellow phosphorus, it is necessary to use a measuring ruler to measure the volume of solid yellow phosphorus, from which the mass of solid yellow phosphorus can be calculated. However, when yellow phosphorus solidifies from liquid to solid state, due to the uneven road surface causing bumps during transportation, the surface of solid yellow phosphorus will be uneven, and there will be more impurities and phosphorus slag inside. Therefore, the calculated volume error is relatively large, and the mass error cannot be controlled. When using yellow phosphorus, problems such as excessive or insufficient addition amount are likely to occur, which will further lead to too high unit consumption or lack of phosphorus in the reaction during production. In addition, some existing metering methods are easily interfered by the impurities and phosphorus slag in yellow phosphorus, resulting in inaccurate metering. Moreover, some measurement methods are to add water into the tank truck first and then heat it outside the tank truck to melt the solid yellow phosphorus inside. However, some existing heating methods cannot make the yellow phosphorus inside heat evenly, resulting in slow melting of yellow phosphorus and affecting work efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a metering system for yellow phosphorus discharging, which can effectively and accurately calculate the volume and mass of yellow phosphorus after the yellow phosphorus tank truck enters the factory, facilitating the control of the usage amount of yellow phosphorus during the use process; and can effectively eliminate the interference of impurities and phosphorus slag on the measurement result, making the metering result more accurate and reliable; in addition, it can accelerate the melting of solid yellow phosphorus and improve work efficiency, and can effectively solve the problems in the background technique.

[0005] To achieve the above object, the present invention provides the following technical solution: A metering system for yellow phosphorus discharging, including a pedestal;

[0006] A weighing scale is provided on the surface of the pedestal, a storage tank is provided on one side of the surface of the pedestal, and a heating component is provided on the surface of the pedestal;

[0007] On one side of the surface of the pedestal, there is a bracket. Horizontally arranged at the top of the side of the bracket is a guide rod. At the end of the guide rod, there is a conveying component. Uniformly sleeved on the guide rod are hanging rings. Fixedly sleeved at the bottom of the hanging ring is a flexible hose. At the end of the flexible hose away from the bracket, there is a connecting pipe. Slidingly sleeved at the bottom of the connecting pipe is a floating plate. At the bottom end of the connecting pipe, there is a metal pipe. Slidingly sleeved at the bottom end of the metal pipe is a sleeve. On the connecting pipe, there is a floating component. On the metal pipe, there is an adjusting component;

[0008] Fixedly sleeved on the bottom side of the metal pipe is an electromagnet.

[0009] Further, the conveying component includes a mounting frame. The mounting frame is arranged at the end of the guide rod away from the bracket. At the bottom of the mounting frame, there are guide wheels, and the flexible hose bypasses the top of the guide wheels. On the side of the mounting frame, there is a motor. The output shaft of the motor is fixedly connected to the end of the guide wheel.

[0010] Further, the floating component includes side plates. The side plates are arranged on the side of the connecting pipe. A limiting rod penetrates through the surface of the side plates. A buffer spring is sleeved on the limiting rod at the position below the bottom of the side plates. A pressure sensor is arranged between the floating plate and the side plates. An airbag is arranged on the bottom surface of the floating plate. Uniformly arranged at the bottom surface of the airbag near the edge of the floating plate are four air nozzles. Control solenoid valves are arranged on the air nozzles. A temperature sensor is arranged on the bottom surface of the floating plate.

[0011] Further, the adjusting component includes an annular plate. The annular plate is arranged on the metal pipe at the position below the electromagnet. A sliding rod penetrates through the surface of the annular plate. The bottom end of the sliding rod is fixedly connected to the top surface of the sleeve. A return spring is sleeved on the sliding rod at the position between the annular plate and the top surface of the sleeve. At the top end of the sliding rod, there is a permanent magnet corresponding to the electromagnet.

[0012] Further, on one side of the top surface of the storage tank, there is a feed pipe. The feed pipe is connected to the end of the flexible hose away from the metal pipe. A feed solenoid valve is arranged on the feed pipe. On the other side of the top surface of the storage tank, there is a branch pipe. At the top end of the branch pipe, there is an induced draft fan. An exhaust solenoid valve is arranged on the branch pipe.

[0013] Further, on the side of the storage tank, there is a heat exchanger. The heat exchanger can heat and keep warm the storage tank by introducing hot water to prevent the yellow phosphorus inside from solidifying.

[0014] Further, on the side of the storage tank, there is a discharge pipe. A discharge solenoid valve is arranged on the discharge pipe.

[0015] Further, in the middle of the top surface of the storage tank, there is a water injection pipe. An injection solenoid valve and a flowmeter are arranged on the water injection pipe from top to bottom in sequence. The flowmeter can monitor the amount of water entering the storage tank.

[0016] Furthermore, the heating component includes a furnace body which is arranged on the surface of the pedestal, and a water tank is placed at the top heating port of the furnace body.

[0017] Furthermore, the heating component further includes side frames which are symmetrically arranged on both sides of the bottom surface of the pedestal. An exhaust block is provided at the top of each side frame, and air holes are evenly formed on the opposite side of the two exhaust blocks. A steam pipe communicating with the top of the water tank is provided at the top of the exhaust block.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Heat both sides of the tank truck to melt the solid yellow phosphorus inside. After that, weigh the tank truck using a weighing scale. Start the motor to drive the guide wheel to rotate, lower the hose, and make the metal pipe pass through the opening at the top of the tank truck and extend into the internal yellow phosphorus. Then open the feed solenoid valve and the exhaust solenoid valve, and at the same time start the induced draft fan to make the inside of the storage tank in a negative pressure state. The liquid yellow phosphorus in the yellow phosphorus tank truck can enter the hose through the metal pipe and then enter the storage tank. After that, weigh the tank truck again using the weighing scale. Subtract the data of the second weighing from the data of this weighing detection to calculate the mass of the extracted liquid yellow phosphorus.

[0020] 2. After filling the tank truck with water, let the metal pipe fall into the tank truck so that the bottom end of the sleeve at the bottom of the metal pipe is in the water at the top of the tank truck to heat the yellow phosphorus in the tank truck. At the same time, the airbag on the bottom surface of the floating plate expands due to heat. When the temperature sensor detects that the temperature received reaches the set first threshold value, the solenoid valves on the four downward air nozzles are sequentially opened one by one. The floating plate receives an upward reverse thrust on the edge side, so the floating plate can be pushed up and turned over in four directions in sequence, and at the same time drives the metal pipe at the bottom of the floating plate to swing and shake in the water, realizing the stirring effect on the water, making the water and the solid yellow phosphorus heated evenly, and at the same time melting the yellow phosphorus quickly.

[0021] 3. After the solid yellow phosphorus becomes liquid, impurities and phosphorus slag will settle at the bottom of the tank truck. Start the electromagnet and gradually increase the current in the electromagnet circuit. Push the sliding rod to extend downward through the repulsive force between the electromagnet and the permanent magnet. When the bottom end of the sleeve extends out of the interface between the water and the yellow phosphorus, since the sedimentation layer is at the bottom of the liquid yellow phosphorus and is far away from the bottom end of the sleeve, impurities and phosphorus slag can be effectively avoided from being extracted, further improving the metering accuracy of yellow phosphorus. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a schematic cross-sectional structural diagram of the metal pipe of the present invention;

[0024] Figure 3 Schematic diagram of the bottom structure of the floating board of the present invention;

[0025] Figure 4 is Figure 1 Enlarged schematic diagram of the structure at position A in

[0026] Figure 5 is Figure 1 Enlarged schematic diagram of the structure at position B in

[0027] Figure 6 is Figure 1 Enlarged schematic diagram of the structure at position C in

[0028] Figure 7 is Figure 1 Enlarged schematic diagram of the structure at position D in

[0029] In the figure: 1, pedestal; 11, weighbridge; 2, bracket; 21, guide rod; 22, lifting ring; 23, mounting frame; 24, guide wheel; 25, motor; 26, hose; 27, connecting pipe; 28, metal pipe; 29, sleeve; 3, storage tank; 31, feed pipe; 32, feed solenoid valve; 33, branch pipe; 34, induced draft fan; 35, exhaust solenoid valve; 36, heat exchanger; 37, discharge pipe; 38, discharge solenoid valve; 39, water injection pipe; 391, water injection solenoid valve; 392, flowmeter; 4, heating assembly; 41, furnace body; 42, water tank; 43, side frame; 44, exhaust block; 45, steam pipe; 5, floating board; 501, airbag; 502, air nozzle; 503, control solenoid valve; 504, temperature sensor; 51, side plate; 52, limit rod; 53, buffer spring; 54, pressure sensor; 6, electromagnet; 61, annular plate; 62, sliding rod; 63, return spring; 64, permanent magnet. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] First embodiment:

[0032] Please refer to Figure 1-7, this embodiment provides a technical solution: a metering system for yellow phosphorus unloading, including a pedestal 1. A weighing scale 11 is provided on the surface of the pedestal 1. A storage tank 3 is provided on one side of the surface of the pedestal 1. A heating component 4 is provided on the surface of the pedestal 1. The heating component 4 includes a furnace body 41. The furnace body 41 is arranged on the surface of the pedestal 1. A water tank 42 is placed at the top heating port of the furnace body 41. The heating component 4 further includes side frames 43. The side frames 43 are symmetrically arranged on both sides of the bottom surface of the pedestal 1. An exhaust block 44 is provided at the top of the side frame 43. And air holes are evenly opened on the opposite side of the two exhaust blocks 44. A steam pipe 45 communicating with the top of the water tank 42 is provided at the top of the exhaust block 44.

[0033] A support 2 is provided on one side of the surface of the pedestal 1. A guide rod 21 is horizontally arranged at the top of the side of the support 2. A conveying component is provided at the end of the guide rod 21. Suspension rings 22 are evenly sleeved on the guide rod 21. A flexible hose 26 is fixedly sleeved at the bottom of the suspension ring 22. One end of the flexible hose 26 away from the support 2 is provided with a connecting pipe 27. A floating plate 5 is slidably sleeved at the bottom of the connecting pipe 27. A metal pipe 28 is provided at the bottom end of the connecting pipe 27. A sleeve 29 is slidably sleeved at the bottom end of the metal pipe 28.

[0034] The conveying component includes a mounting frame 23. The mounting frame 23 is arranged at the end of the guide rod 21 away from the support 2. A guide wheel 24 is provided at the bottom of the mounting frame 23. And the flexible hose 26 bypasses the top of the guide wheel 24. A motor 25 is provided on the side of the mounting frame 23. The output shaft of the motor 25 is fixedly connected to the end of the guide wheel 24.

[0035] One side of the top surface of the storage tank 3 is provided with a feed pipe 31. The feed pipe 31 is connected to the end of the flexible hose 26 away from the metal pipe 28. A feed electromagnetic valve 32 is provided on the feed pipe 31. The other side of the top surface of the storage tank 3 is provided with a branch pipe 33. An induced draft fan 34 is provided at the top of the branch pipe 33. An exhaust electromagnetic valve 35 is provided on the branch pipe 33. A heat exchanger 36 is provided on the side of the storage tank 3. A discharge pipe 37 is provided on the side of the storage tank 3. A discharge electromagnetic valve 38 is provided on the discharge pipe 37. A water injection pipe 39 is provided in the middle of the top surface of the storage tank 3. A water injection electromagnetic valve 391 and a flowmeter 392 are sequentially arranged on the water injection pipe 39 from top to bottom.

[0036] When the device of this embodiment is in use, move the tank truck carrying solid yellow phosphorus to the surface of the weighbridge 11, align the top opening of the tank truck with the metal pipe 28, then open the cover and add water to the tank truck to submerge the yellow phosphorus. Use the weighbridge 11 to conduct the first weighing measurement on the entire tank truck. Start the furnace body 41 to heat the water in the water tank 42. The steam generated by heating passes through the steam pipe 45 and enters the exhaust block 44, and heats the two sides of the tank truck through the air holes on the side of the exhaust block 44, melting the solid yellow phosphorus inside into a liquid state. After the dissolution is complete, use the weighbridge 11 to conduct the second weighing on the tank truck. Then start the motor 25 to drive the guide wheel 24 to rotate, lower the conveying hose 26, so that the metal pipe 28 passes through the opening at the top of the tank truck and enters the inside of the tank truck, and make the bottom end of the metal pipe 28 extend into the melted yellow phosphorus. Then open the feed solenoid valve 32 and the exhaust solenoid valve 35, and at the same time start the induced draft fan 34 to discharge the air in the storage tank 3, making the storage tank 3 in a negative pressure state. The liquid yellow phosphorus in the yellow phosphorus tank truck enters the hose 26 through the metal pipe 28, and then enters the storage tank 3. After the extraction is complete, use the weighbridge 11 to conduct the third weighing detection on the tank truck, and immediately close the feed solenoid valve 32 and the exhaust solenoid valve 35 to prevent external air from entering, thereby realizing the storage of yellow phosphorus. In addition, the heated water in the water tank 42 is introduced into the heat exchanger 36 to heat and keep warm the yellow phosphorus in the storage tank 3 to prevent the yellow phosphorus from solidifying. Subtract the data of the second weighing from the data of the third weighing detection, and thus the mass of the extracted liquid yellow phosphorus can be calculated.

[0037] In addition, when it is necessary to discharge the liquid yellow phosphorus in the storage tank 3, after connecting the external water supply pipe to the water injection pipe 39, turn on the external water pump, and at the same time open the water injection solenoid valve 391 and the discharge solenoid valve 38. Inject the externally pressurized water into the water tank 42 through the water injection pipe 39, and the liquid yellow phosphorus can be pressed out through the discharge pipe 37. In addition, in order to avoid the solidification of yellow phosphorus, the temperature of the water injected into the water tank 42 is kept the same as the temperature of the water passing through the heat exchanger 36. And during the process of injecting water, the flowmeter 392 can be used to monitor the amount of water injected, and thus the amount of the discharged liquid yellow phosphorus can be calculated by converting the amount of water injected.

[0038] Second Embodiment:

[0039] A metering system for yellow phosphorus unloading provided based on the first embodiment, during the use process, especially during the heating of solid yellow phosphorus in the tank car, the exhaust blocks 44 on both sides are used for heating, and the heating range and area are relatively fixed, which easily leads to uneven heating of the solid yellow phosphorus, and the melting speed of the solid yellow phosphorus is relatively slow. In addition, during the process of pumping out the melted yellow phosphorus, since the yellow phosphorus contains impurities and phosphorus slag, and after the solid yellow phosphorus melts, the impurities and phosphorus slag will settle at the bottom of the liquid yellow phosphorus, so during the process of pumping out the liquid yellow phosphorus, especially when the liquid yellow phosphorus is about to be pumped out, the impurities and phosphorus slag are also easily pumped out, resulting in the entry of impurities and phosphorus slag into the subsequent reaction process. However, the impurities and phosphorus slag do not participate in the chemical reaction, thus resulting in the problem of insufficient or excessive amount of yellow phosphorus required in the subsequent process, and at the same time causing a large error in the metering of yellow phosphorus.

[0040] To solve the above problems, a floating component is provided on the connecting pipe 27. The floating component includes a side plate 51, the side plate 51 is arranged on the side of the connecting pipe 27, a limiting rod 52 penetrates through the surface of the side plate 51, a buffer spring 53 is sleeved on the limiting rod 52 at the position below the bottom of the side plate 51, a pressure sensor 54 is arranged between the floating plate 5 and the side plate 51, an airbag 501 is arranged on the bottom surface of the floating plate 5, four air nozzles 502 are evenly arranged on the bottom surface of the airbag 501 near the edge of the floating plate 5, a control solenoid valve 503 is arranged on the air nozzle 502, and a temperature sensor 504 is arranged on the bottom surface of the floating plate 5.

[0041] An adjusting component is provided on the metal pipe 28. The adjusting component includes an annular plate 61, the annular plate 61 is arranged on the metal pipe 28 at the position below the electromagnet 6, a sliding rod 62 penetrates through the surface of the annular plate 61, the bottom end of the sliding rod 62 is fixedly connected to the top surface of the sleeve 29, a reset spring 63 is sleeved on the sliding rod 62 at the position between the annular plate 61 and the top surface of the sleeve 29, and a permanent magnet 64 corresponding to the electromagnet 6 is arranged at the top end of the sliding rod 62.

[0042] An electromagnet 6 is fixedly sleeved on the bottom side of the metal pipe 28.

[0043] When the device of this embodiment is in use, after filling the tank car with water, the motor 25 is immediately started to drive the guide wheel 24 to rotate, and the metal pipe 28 falls into the tank car. During the falling process of the metal pipe 28, when the bottom surface of the floating plate 5 touches the water surface, when the metal pipe 28 continues to fall, the floating plate 5 will slide upward and simultaneously squeeze the buffer spring 53 upward. At the same time, the detection end of the pressure sensor 54 is squeezed by the side plate 51 and generates a force signal, so it can be judged that the floating plate 5 has reached the water surface, and the motor 25 is synchronously turned off to stop the falling of the metal pipe 28. At this time, the bottom end of the sleeve 29 at the bottom of the metal pipe 28 is located in the water at the top of the tank car. When heating the yellow phosphorus in the tank car, the internal water will also be heated. The temperature sensor 504 detects that the temperature of the water rises. At the same time, the airbag 501 on the bottom surface of the floating plate 5 expands due to heat. When the temperature sensor 504 detects that the received temperature reaches the set first threshold, the control solenoid valves 503 on the four air nozzles 502 are sequentially opened one by one. Since the air outlet direction of the air nozzle 502 is downward, an upward reverse thrust will be applied to the edge side surface of the floating plate 5. Since the air nozzles 502 are opened one by one, the floating plate 5 can be pushed up and turned over in four directions in turn, and at the same time drive the metal pipe 28 at the bottom of the floating plate 5 to swing and shake in the water, realizing the stirring effect on the water, making the water heated evenly, so that the uniformly heated water can be used to heat the solid at the bottom of the water, making the solid yellow phosphorus heated more evenly and melting the yellow phosphorus quickly at the same time.

[0044] In addition, when the metal pipe 28 swings and shakes in the water, the electromagnet 6 is turned on, and the magnetic pole of the electromagnet 6 is the same as the magnetic pole of the opposite end of the permanent magnet 64. Therefore, a repulsive force can be generated to push the slide rod 62 to slide downward, thereby driving the sleeve 29 to slide downward. At this time, the return spring 63 is stretched. By intermittently energizing the electromagnet 6, under the action of the return spring 63, the sleeve 29 can be intermittently telescoped and slid along the bottom of the metal pipe 28. During the telescopic sliding process, the un-melted solid yellow phosphorus is broken, which is beneficial to the rapid melting of the solid yellow phosphorus and further improves the stirring effect, making the water heated more evenly.

[0045] In addition, after the solid yellow phosphorus is completely melted and the liquid yellow phosphorus at the bottom needs to be drained from the tank truck, since the original solid yellow phosphorus contains impurities and some phosphorus slag, after the solid yellow phosphorus becomes liquid, the impurities and phosphorus slag will settle at the bottom of the tank truck under the action of their own gravity. To prevent the sleeve 29 from extending too deep downward and contacting the impurities and phosphorus slag at the bottom, the electromagnet 6 is activated, and the current in the circuit of the electromagnet 6 is gradually increased. The magnetic force of the electromagnet 6 is gradually enhanced, and the magnetic poles on the side of the electromagnet 6 opposite to the permanent magnet 64 are the same. Through the repulsive force, the sliding rod 62 can be pushed to slowly extend downward and slide, and the return spring 63 is stretched. Due to the effect of gravity sedimentation, the density of the yellow phosphorus at the bottom is greater than that of the yellow phosphorus at the top, and the density of yellow phosphorus is greater than that of water. When the bottom end of the sleeve 29 extends out of the interface between water and yellow phosphorus, the liquid density changes suddenly and greatly, and the buoyancy force on the metal tube 28 will suddenly increase. At this time, the buoyancy force on the floating plate 5 will also change greatly, and the force on the pressure sensor 54 on the floating plate 5 will also change greatly. When the pressure sensor 54 detects that the force received reaches the set second threshold, it can be detected at this time that the bottom end of the sleeve 29 has extended into the liquid yellow phosphorus, and the bottom end of the sleeve 29 is close to the liquid level of the liquid yellow phosphorus, and the sleeve 29 is fixed at this position. Thus, during the process of pumping out the liquid yellow phosphorus, since the sedimentation layer is at the bottom of the liquid yellow phosphorus and is far from the bottom end of the sleeve 29, the impurities and phosphorus slag can be effectively prevented from being pumped out, and the impurities and phosphorus slag are prevented from participating in the subsequent processes, thereby solving the problem of insufficient or excessive use of yellow phosphorus in the subsequent process, and further improving the metering accuracy of yellow phosphorus.

[0046] It should be noted that during the process of pumping out the liquid yellow phosphorus outward, the liquid levels of water and yellow phosphorus drop synchronously, and the bottom end of the sleeve 29 will get closer and closer to the sedimentation layer at the bottom of the liquid yellow phosphorus. Therefore, when the bottom end of the sleeve 29 extends into the sedimentation layer of the liquid yellow phosphorus, the liquid density will also change greatly, resulting in a large change in the buoyancy forces of the metal tube 28 and the floating plate 5, and the force on the pressure sensor 54 will also change greatly. When the pressure sensor 54 detects that the force received reaches the set third threshold, it is determined that the sleeve 29 has reached the sedimentation layer, and the pumping of the liquid yellow phosphorus to the outside is stopped, thereby effectively preventing the sedimentation layer at the bottom from being discharged to the outside and being utilized, and preventing the influence on the metering of yellow phosphorus.

[0047] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A metering system for discharging yellow phosphorus, characterized in that, It includes a pedestal; A weighing scale is provided on the surface of the pedestal, a storage box is provided on one side of the surface of the pedestal, and a heating component is provided on the surface of the pedestal; A support is provided on one side of the surface of the pedestal. A guide rod is horizontally provided at the top of the side of the support. A conveying component is provided at the end of the guide rod. Hanging rings are evenly sleeved on the guide rod. A hose is fixedly sleeved at the bottom of the hanging ring. One end of the hose away from the support is provided with a connecting pipe. A floating plate is slidably sleeved at the bottom of the connecting pipe. A metal pipe is provided at the bottom end of the connecting pipe. A sleeve is slidably sleeved at the bottom end of the metal pipe. A floating component is provided on the connecting pipe, and an adjusting component is provided on the metal pipe; An electromagnet is fixedly sleeved on the bottom side of the metal pipe; The floating component includes side plates. The side plates are provided on the side of the connecting pipe. A limiting rod penetrates through the surface of the side plates. A buffer spring is sleeved on the limiting rod at the position below the bottom of the side plates. A pressure sensor is provided between the floating plate and the side plates. An airbag is provided on the bottom surface of the floating plate. Four air nozzles are evenly provided on the bottom surface of the airbag near the edge of the floating plate. Control solenoid valves are provided on the air nozzles. A temperature sensor is provided on the bottom surface of the floating plate; The adjusting component includes an annular plate. The annular plate is provided on the metal pipe at the position below the electromagnet. A slide rod penetrates through the surface of the annular plate. The bottom end of the slide rod is fixedly connected to the top surface of the sleeve. A return spring is sleeved on the slide rod at the position between the annular plate and the top surface of the sleeve. A permanent magnet corresponding to the electromagnet is provided at the top end of the slide rod; A feed pipe is provided on one side of the top surface of the storage box. The feed pipe is connected to the end of the hose away from the metal pipe. A feed solenoid valve is provided on the feed pipe. A branch pipe is provided on the other side of the top surface of the storage box. An induced draft fan is provided at the top end of the branch pipe. An exhaust solenoid valve is provided on the branch pipe.

2. The metering system for yellow phosphorus discharging according to claim 1, characterized in that: The conveying component includes a mounting frame. The mounting frame is provided at the end of the guide rod away from the support. Guide wheels are provided at the bottom of the mounting frame, and the hose bypasses the top of the guide wheels. A motor is provided on the side of the mounting frame. The output shaft of the motor is fixedly connected to the end of the guide wheel.

3. The metering system for yellow phosphorus unloading according to claim 1, wherein: A heat exchanger is provided on the side of the storage box.

4. A metering system for yellow phosphorus unloading according to claim 1, characterized in that: A discharge pipe is provided on the side of the storage box. A discharge solenoid valve is provided on the discharge pipe.

5. The metering system for yellow phosphorus unloading according to claim 1, characterized in that: A water injection pipe is provided in the middle of the top surface of the storage box. A water injection solenoid valve and a flow meter are provided on the water injection pipe from top to bottom in sequence.

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