A powdered phosphorus pentoxide feeding system

Abstract

The utility model relates to the technical field of feeding equipment, specifically a powdered phosphorus pentoxide feeding system, including a silo, a nitrogen pipeline is connected to the top of one side of the silo, the bottom discharge port of the silo is connected to the reactor through the discharge pipeline, the nitrogen pipeline is connected to the silo through two pipelines, the two pipelines are equipped with a silo air intake valve, the silo controls the amount of material in and out through a first solenoid valve and a second solenoid valve, the top of the silo is connected to a bag filter through an exhaust pipeline, and a third solenoid valve is installed on the exhaust pipeline. In the powdered phosphorus pentoxide feeding system, nitrogen is introduced into the silo through the nitrogen pipeline, and a nitrogen protective layer is formed inside the silo, which effectively isolates the phosphorus pentoxide from the outside air. The system is equipped with a weighing module and a solenoid valve control system, which can monitor the weight of phosphorus pentoxide in the silo in real time, and accurately adjust the opening degree of the solenoid valve through the automatic control system, so as to achieve accurate control of the feeding amount.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a powdered phosphorus pentoxide feeding system. Background Art

[0002] In the field of chemical production, phosphorus pentoxide, as an important chemical raw material, is widely used in flame retardants, water treatment agents, catalysts and other fields. However, phosphorus pentoxide has strong hygroscopicity and easily reacts with water vapor in the air to produce products such as metaphosphoric acid and pyrophosphoric acid, which not only affects the purity and quality of phosphorus pentoxide, but also brings great challenges to its storage, transportation and feeding process.

[0003] The traditional method of feeding and conveying phosphorus pentoxide is mostly screw conveying. Although this method is simple and direct, it has obvious defects. Since phosphorus pentoxide is in direct contact with air during screw conveying, it is very easy to absorb moisture in the air and deliquesce, resulting in material agglomeration, screw jamming, and even phosphorus pentoxide deterioration, thus affecting product quality and production stability. Utility Model Content

[0004] The utility model aims to provide a powdered phosphorus pentoxide feeding system to solve the problem that the traditional phosphorus pentoxide feeding and conveying method proposed in the above background technology mostly adopts screw conveying, which is simple and direct but has obvious defects.

[0005] To achieve the above-mentioned purpose, the utility model provides a powdered phosphorus pentoxide feeding system, including a silo, a nitrogen pipeline is connected to the top of one side of the silo, a bottom discharge port of the silo is connected to a reactor through the discharge pipeline, the nitrogen pipeline is connected to the silo through two pipelines, both pipelines are equipped with silo air inlet valves, the silo controls the inlet and outlet amounts through a first solenoid valve and a second solenoid valve, the top of the silo is connected to a bag dust collector through an exhaust pipeline, and a third solenoid valve is installed on the exhaust pipeline.

[0006] Preferably, the outer end of the nitrogen pipeline is connected to a nitrogen main pipeline.

[0007] Preferably, the first solenoid valve is installed on one of the pipelines between the nitrogen pipeline and the silo, and the second solenoid valve is installed on the discharge pipeline of the silo.

[0008] Preferably, a weighing module is installed on the outside of the silo, and the weighing module is fixed on an external platform. The control chip of the first solenoid valve and the second solenoid valve is connected to the weighing module. The weighing module includes a weighing sensor and a data processing chip. The weighing sensor performs weighing, transmits data to the data processing chip, analyzes the material quantity in the silo, and then realizes the regulation of the pressure and the material quantity of the silo 1 by controlling the opening and closing of the first solenoid valve and the second solenoid valve.

[0009] Preferably, force-bearing blocks are installed on the outer walls of both sides of the silo, and a weighing sensor is located at the bottom of the force-bearing block to support the force-bearing block and perform weighing sensing.

[0010] Preferably, an air pressure sensor is installed on one outer wall of the silo, and a control chip of the air pressure sensor is electrically connected to a control chip of the third solenoid valve.

[0011] Preferably, an air inlet is provided at the lower portion of one side of the bag-type dust collector, and the air inlet is connected to the top of the silo; an air outlet is provided at the upper portion of the other side of the bag-type dust collector, and the air outlet is connected to the exhaust gas main pipe through a pipeline; a dust discharge outlet is provided at the bottom of the bag-type dust collector, and the dust discharge outlet is connected to the reactor through a pipeline.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the powdered phosphorus pentoxide feeding system, nitrogen is introduced into the silo through a nitrogen pipeline, forming a nitrogen protective layer inside the silo, effectively isolating phosphorus pentoxide from the outside air, avoiding its hygroscopic deliquescence and the possibility of generating by-products, and ensuring the purity and quality of the raw materials. The system is equipped with a weighing module and a solenoid valve control system, which can monitor the weight of phosphorus pentoxide in the silo in real time, and accurately adjust the opening degree of the solenoid valve through the automatic control system, realizing accurate control of the feed amount, ensuring the stability of production and consistency of product quality.

[0014] The setting of bag dust collector effectively removes the dust generated during the feeding process and improves the working environment. At the same time, the dust is recycled to the reactor through the pipeline, which maximizes the utilization of resources and reduces production costs. The use of nitrogen delivery and precise control technology avoids production interruptions caused by material agglomeration, screw jamming and other problems in traditional screw conveying, and significantly improves production efficiency. The setting of air pressure sensor can monitor the air pressure changes in the silo in real time. Once an abnormality occurs, the solenoid valve can be closed in time to prevent safety accidents caused by excessive pressure, thereby improving the safety and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the silo in the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the bag dust collector in the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Silo; 11. Discharge pipe; 12. Silo air inlet valve; 13. Force block; 2. Air pressure sensor; 3. Bag filter; 31. Air inlet; 32. Air outlet; 33. Dust outlet; 4. Nitrogen pipeline; 5. First solenoid valve; 6. Second solenoid valve; 7. Weighing module; 8. Third solenoid valve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a powdered phosphorus pentoxide feeding system, such as Figure 1-Figure 3 As shown, it includes a silo 1, a nitrogen pipeline 4 is connected to the top of one side of the silo 1, and the feeding operation of the silo 1 is performed by introducing nitrogen into the silo 1 and applying pressure. The bottom discharge port of the silo 1 is connected to the reactor through a discharge pipeline 11, and the nitrogen pipeline 4 is connected to the silo 1 through two pipelines. The silo air inlet valve 12 is installed on both pipelines. The silo 1 controls the inlet and outlet amounts through the first solenoid valve 5 and the second solenoid valve 6. The top of the silo 1 is connected to a bag dust collector 3 through an exhaust pipeline, and a third solenoid valve 8 is installed on the exhaust pipeline to control the gas discharge switch.

[0022] In this embodiment, the outer end of the nitrogen pipeline 4 is connected to the nitrogen main pipeline to facilitate the nitrogen to be introduced into the silo 1.

[0023] Specifically, the first solenoid valve 5 is installed on one of the pipelines between the nitrogen pipeline 4 and the silo 1 to control the air intake switch, and the second solenoid valve 6 is installed on the discharge pipeline 11 of the silo 1 to control the discharge switch.

[0024] Furthermore, a weighing module 7 is installed on the outside of the silo 1, and the weighing module 7 is fixed on the external platform. The control chip of the first solenoid valve 5 and the second solenoid valve 6 is connected to the weighing module 7. The weighing module 7 includes a weighing sensor and a data processing chip. The weighing sensor performs weighing, transmits data to the data processing chip, analyzes the material quantity in the silo 1, and then controls the opening and closing of the first solenoid valve 5 and the second solenoid valve 6 to adjust the pressure of the silo 1 and the material quantity.

[0025] Furthermore, force blocks 13 are installed on the outer walls of both sides of the silo 1, and the weighing sensor is located at the bottom of the force block 13 to support the force block 13 and perform weighing sensing for stable weighing operation.

[0026] Furthermore, an air pressure sensor 2 is installed on one side outer wall of the silo 1, and the control chip of the air pressure sensor 2 is electrically connected to the control chip of the third solenoid valve 8. The pressure in the silo 1 is detected by the air pressure sensor 2, and the signal is transmitted to the third solenoid valve 8, and the gas is discharged and closed by the switch of the third solenoid valve 8.

[0027] Furthermore, an air inlet 31 is provided at the lower part of one side of the bag-type dust collector 3, and the air inlet 31 is connected to the top of the silo 1, so as to suck in the gas carrying the material for dust removal. An air outlet 32 ​​is provided at the upper part of the other side of the bag-type dust collector 3, and the air outlet 32 ​​is connected to the exhaust gas main pipe through a pipeline to discharge the exhaust gas after dust removal. A dust discharge port 33 is provided at the bottom of the bag-type dust collector 3, and the dust discharge port 33 is connected to the reactor through a pipeline to recycle the dust.

[0028] When the powdered phosphorus pentoxide feeding system of the utility model is used, nitrogen is first introduced from the nitrogen main pipeline through the nitrogen pipeline 4, and the nitrogen enters the silo 1 through two pipelines. The silo air inlet valve 12 is used to control the inflow of nitrogen to ensure that the interior of the silo 1 is filled with nitrogen, thereby forming an inert gas protection atmosphere to effectively prevent phosphorus pentoxide from absorbing moisture and deteriorating.

[0029] When feeding operation is required, the first solenoid valve 5 opens under the command of the control signal, and nitrogen enters the silo 1 and exerts pressure to push phosphorus pentoxide into the reactor from the discharge port at the bottom of the silo through the discharge pipeline 11. The second solenoid valve 6 controls the opening and closing of the discharge pipeline 11 to adjust the feeding amount according to demand.

[0030] The weighing module 7 outside the silo 1 monitors the weight of phosphorus pentoxide in the silo in real time through a weighing sensor, and transmits the data to the data processing chip for analysis. According to the preset material quantity or pressure threshold, the data processing chip controls the opening and closing of the first solenoid valve 5 and the second solenoid valve 6 to achieve precise regulation of the pressure and material quantity in the silo 1.

[0031] The air pressure sensor 2 on one side of the silo 1 monitors the air pressure changes in the silo in real time. When the air pressure exceeds the preset safety threshold, the air pressure sensor transmits a signal to the control chip of the third solenoid valve 8, and the third solenoid valve 8 opens immediately to discharge excess nitrogen through the exhaust pipe to ensure that the air pressure in the silo is within a safe range.

[0032] The bag filter 3 connected to the top of the bin 1 plays a role in dust removal during the feeding process. The gas with the material enters the bag filter 3 from the air inlet 31. After being filtered by the bag, the clean gas is discharged from the air outlet 32 ​​and connected to the exhaust main pipe through a pipeline. The filtered dust is discharged from the dust outlet 33 and recovered to the reactor through a pipeline to maximize the utilization of resources.

[0033] Finally, it should be noted that the air pressure sensor 2, weighing module 7, etc. in this embodiment, the electronic components in the above parts are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the field.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A powdered phosphorus pentoxide feeding system, comprising a silo (1), characterized in that: A nitrogen pipeline (4) is connected to the top of one side of the silo (1); a discharge port at the bottom of the silo (1) is connected to the reactor via a discharge pipeline (11); the nitrogen pipeline (4) is connected to the silo (1) via a pipeline, and a silo air inlet valve (12) is installed on each pipeline; the silo (1) controls the amount of material inlet and outlet via a first solenoid valve (5) and a second solenoid valve (6); the top of the silo (1) is connected to a bag filter (3) via an exhaust pipeline, and a third solenoid valve (8) is installed on the exhaust pipeline.

2. The powdered phosphorus pentoxide feeding system according to claim 1, characterized in that: The outer end of the nitrogen pipeline (4) is connected to the nitrogen main pipeline.

3. The powdered phosphorus pentoxide feeding system according to claim 1, characterized in that: The first solenoid valve (5) is installed on one of the pipelines between the nitrogen pipeline (4) and the silo (1), and the second solenoid valve (6) is installed on the discharge pipeline (11) of the silo (1).

4. The powdered phosphorus pentoxide feeding system according to claim 3, characterized in that: A weighing module (7) is installed on the outside of the silo (1), and the weighing module (7) is fixed on the external platform. The control chip of the first solenoid valve (5) and the second solenoid valve (6) is connected to the weighing module (7). The weighing module (7) includes a weighing sensor and a data processing chip. The weighing sensor performs weighing, transmits data to the data processing chip, analyzes the amount of material in the silo (1), and then controls the opening and closing of the first solenoid valve (5) and the second solenoid valve (6) to adjust the pressure of the silo (1) and the amount of material.

5. The powdered phosphorus pentoxide feeding system according to claim 4, characterized in that: The outer walls of both sides of the silo (1) are provided with force blocks (13), and a weighing sensor is located at the bottom of the force blocks (13) to support the force blocks (13) and perform weighing sensing.

6. The powdered phosphorus pentoxide feeding system according to claim 1, characterized in that: An air pressure sensor (2) is installed on one side outer wall of the silo (1), and the control chip of the air pressure sensor (2) is electrically connected to the control chip of the third solenoid valve (8).

7. The powdered phosphorus pentoxide feeding system according to claim 1, characterized in that: An air inlet (31) is provided at the lower part of one side of the bag filter (3), and the air inlet (31) is connected to the top of the silo (1). An air outlet (32) is provided at the upper part of the other side of the bag filter (3), and the air outlet (32) is connected to the exhaust gas main pipe through a pipeline. A dust discharge port (33) is provided at the bottom of the bag filter (3), and the dust discharge port (33) is connected to the reactor through a pipeline.

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