A delivery device for sulphides

Abstract

The utility model discloses a solid battery material conveying technical field's a kind of sulfide's conveying device, to solve the problem of easy reaction with water vapor in the conveying process of five phosphorus pentasulfide in prior art. It includes bunker, gas tank, storage tank and negative pressure fan, the inside of the storage tank is equipped with intercepting cloth bag, the intercepting cloth bag is used to divide into negative pressure cavity and storage cavity in storage tank, the gas tank and discharge cavity are provided with first communication pipe between communication, the discharge port of the bottom of the bunker and first communication pipe are communicated and set, the discharge port position of the bunker is provided with airlock, first control valve group for controlling the on-off of pipeline is provided on the first communication pipe, the negative pressure cavity and negative pressure fan are communicated and set by second communication pipe, the storage tank is also provided with air supplementing pipe. The utility model is used for the conveying work of solid battery sulfide material, can ensure safe working environment while guaranteeing the stable transportation supply of material.

Description

Technical Field

[0001] This utility model relates to a sulfide conveying device, belonging to the field of solid-state battery material conveying technology. Background Technology

[0002] Phosphorus pentasulfide, one of the precursor materials for new energy solid-state batteries, is stable when dry but has strong hygroscopic properties. It undergoes violent hydrolysis upon contact with water, producing phosphoric acid and highly toxic hydrogen sulfide gas. At the same time, phosphorus pentasulfide is highly irritating to the skin, eyes, and respiratory tract. When heated, it decomposes and releases toxic phosphorus and sulfur oxides. To ensure the safety of transportation, how to conduct closed-loop transportation of this material, maintain its performance, and ensure a safe transportation environment has become one of the urgent technical problems to be solved. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a sulfide conveying device for conveying sulfide materials for solid-state batteries, which can ensure a stable supply of materials while ensuring a safe working environment.

[0004] To achieve the above objectives, this utility model employs the following technical solution: This utility model provides a sulfide conveying device, including a silo, a gas tank, a storage tank, and a negative pressure fan. The storage tank is equipped with an intercepting filter bag inside, which divides the interior of the storage tank into a negative pressure chamber and a storage chamber. A first connecting pipe is provided between the gas tank and the discharge chamber. The bottom discharge port of the silo is connected to the first connecting pipe. An airlock valve is provided at the discharge port of the silo. A first control valve group for controlling the on / off state of the pipeline is provided on the first connecting pipe. The negative pressure chamber and the negative pressure fan are connected through a second connecting pipe. The storage tank is also equipped with a gas supply pipe, which is equipped with a second control valve group. A third control valve group is installed on the second connecting pipe. The bottom of the storage tank is equipped with a discharge port, and a discharge control valve is installed at the discharge port.

[0005] Specifically, a positioning ring is connected to the lower part of the storage tank, and a weighing sensor is installed below the positioning ring.

[0006] Specifically, a vacuum breaking tube is also connected to the second connecting pipe, and a third control valve is installed on the vacuum breaking tube.

[0007] Specifically, an annular clamp is fixedly installed on the inner wall of the storage tank, and the middle part of the annular clamp is hollow. The intercepting bag is fixed in a flat shape and covers the hollow part in the middle of the annular clamp.

[0008] Specifically, the storage tank is equipped with two pressure transmitters, and the detection ends of the two pressure transmitters are respectively connected to the negative pressure chamber and the discharge chamber.

[0009] Specifically, the air supply pipe is connected to two air outlet pipes, which are respectively connected to the negative pressure chamber and the discharge chamber. The second control valve group is provided in two sets and is arranged on the two air outlet pipes respectively.

[0010] Specifically, the second control valve group includes a manual valve, a pressure regulating valve, and a solenoid valve arranged sequentially according to the air supply direction of the air supply pipe.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This invention improves upon traditional vacuum feeders by enabling their internal conveying system to form a closed vacuum environment. Through structural improvements, it allows for the delivery of inert gas to facilitate material discharge, thereby preventing the reaction between solid sulfides and water vapor in the air during conveying. This ensures both conveying quality and a safe conveying environment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the conveying device provided in this embodiment of the utility model; Figure 2 This is a side view of the conveying device provided in an embodiment of the present utility model; Figure 3 This is a utility model Figure 2 A cross-sectional view of the conveying device in the AA direction provided in the embodiment; Figure 4 This is a utility model Figure 3 Enlarged view of the structure at point B of the conveying device provided in the embodiment; Attached reference numerals: 1. Hopper; 2. Air tank; 3. Storage tank; 4. Negative pressure fan; 5. Air supply pipe; 6. First connecting pipe; 7. Airlock valve; 8. First control valve group; 10. Second connecting pipe; 11. Vacuum breaking pipe; 12. Third control valve group; 13. Annular clamp; 14. Interception bag; 15. Pressure transmitter; 16. Solenoid valve; 17. Pressure regulating valve; 18. Manual valve; 19. Discharge control valve; 20. Weighing sensor. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example:

[0016] This utility model provides a sulfide conveying device for conveying sulfide materials in solid-state batteries. It ensures a stable supply of materials while maintaining a safe working environment. To achieve stable conveying functionality, the device includes a silo 1, a gas tank 2, a storage tank 3, and a negative pressure fan 4. Figure 1-4As shown, specifically, an intercepting filter bag 14 is provided inside the storage tank 3. The intercepting filter bag 14 is used to divide the inside of the storage tank 3 into a negative pressure chamber and a storage chamber. The discharge chamber is used for temporary transfer of materials, serving as temporary storage. The negative pressure chamber is used to provide negative pressure to facilitate the attraction of materials flowing into the storage tank 3. In order to allow the materials located in the hopper 1 to move normally into the storage chamber under the negative pressure of the negative pressure chamber, a first connecting pipe 6 is provided between the gas tank 2 and the discharge chamber. The gas tank 2 is used to supply inert gas and provide a pushing airflow. The pipeline is filled with pneumatic power. At this point, the bottom outlet of silo 1 is connected to the first connecting pipe 6, allowing material from silo 1 to enter the first connecting pipe 6 and be ultimately carried into the storage tank 3 by the inert gas. To ensure material supply and lock silo 1 in non-operating states, an airlock valve 7 is installed at the outlet of silo 1. It is important to note that the airlock valve 7 should have good sealing properties to prevent other structural influences from causing material denaturation or other related reactions. To ensure the supply of inert gas at appropriate operating points, a control device for pipeline on / off is installed on the first connecting pipe 6. The first control valve group 8 controls the opening and closing of the pipeline and the pipeline delivery pressure. The specific valve body structure and quantity are not limited here. To achieve a vacuum effect, a negative pressure chamber and a negative pressure fan 4 are connected via a second connecting pipe 10. The negative pressure fan 4 is preferably a Roots blower. After the negative pressure fan 4 operates, it extracts the gas from the storage tank 3 through negative pressure. If it is in the feeding stage, the material will be stored in the lower discharge chamber by the intercepting filter bag 14. To ensure the normal discharge of material from the storage tank 3 during the discharge stage, the following measures are taken: The storage tank 3 is also equipped with an air supply pipe 5, and a second control valve group is installed on the air supply pipe 5. The air supply pipe 5 is used to supply inert gas into the storage tank 3. During the discharge stage, the negative pressure fan 4 should be in a closed state at least. The air supply pipe 5 supplies air to increase the air pressure inside the storage tank 3 until the material inside the storage tank 3 can be discharged. For this purpose, a third control valve group 12 is installed on the second connecting pipe 10 to control the pipeline to be in a closed state. As for the discharge, a discharge port is provided at the bottom of the storage tank 3, and a discharge control valve 19 is installed at the discharge port.

[0017] This utility model provides a sulfide conveying device. Because the above-mentioned method uses intermittent feeding and discharging, the sulfide material from the solid-state battery will accumulate in the storage chamber of the storage tank 3. To accurately control the discharge at appropriate times, a positioning ring is connected and installed at the bottom of the storage tank 3, and references... Figure 1 As shown, a weighing sensor 20 can be installed below the positioning ring. When there is a certain amount of material in the storage tank 3 and the rated weight is reached, the material can be discharged by opening and closing the corresponding valve.

[0018] This utility model provides a sulfide conveying device. In some embodiments, when a Roots blower is used, a vacuum breaking pipe 11 is also connected to the second connecting pipe 10 to facilitate vacuum breaking of the system. Figure 1 As shown, a third control valve is provided on the vacuum breaking tube 11 to allow the system to be in a vacuum breaking state according to usage requirements. The vacuum breaking tube 11 can be connected to the outside air.

[0019] This utility model provides a sulfide conveying device, specifically an installation method for the intercepting bag 14. Specifically, an annular clamping plate 13 is fixedly installed on the inner wall of the storage tank 3. Figure 3 and Figure 4 As shown, the middle part of the ring clamp 13 is hollow, and the intercepting bag 14 is fixed in a flat shape and covers the hollow part of the ring clamp 13. At this time, the intercepting bag 14 is fixed by the ring clamp 13, so it is no longer easy to deform, which can avoid the blockage to a certain extent and facilitates installation or maintenance.

[0020] In order to monitor the pressure difference between the two chambers of the intercepting bag 14 and provide a more accurate gas pressure pushing pressure, the present invention provides a sulfide conveying device. Two pressure transmitters 15 are installed on the storage tank 3. The detection ends of the two pressure transmitters 15 are respectively connected to the negative pressure chamber and the discharge chamber to better configure the gas pressure when outputting materials.

[0021] The present invention provides a sulfide conveying device. Considering the method of supplying inert gas through the air supply pipe 5 for material discharge, if the outlet end of the air supply pipe 5 acts on the negative pressure chamber, the gas flow will be affected by the wind resistance from the intercepting bag 14. If the outlet end acts on the discharge chamber, it will be inconvenient to blow away the deposits on the bottom surface of the intercepting bag 14. Therefore, the air supply pipe 5 can be configured to connect two outlet pipes, and the two outlet pipes of the air supply pipe 5 can be connected to the negative pressure chamber and the discharge chamber respectively. At this time, two sets of second control valve groups can be set and arranged on the two outlet pipes respectively. This configuration can take into account the above two defects and can switch the air supply pipeline to reduce the wind resistance after blowing away the impurities on the intercepting bag 14.

[0022] This utility model provides a sulfide conveying device. In order to achieve good automatic and diversified control of gas supply to the gas supply pipe 5, a second control valve group can be configured, including a manual valve 18, a pressure regulating valve 17 and a solenoid valve 16 arranged in sequence according to the gas supply direction of the gas supply pipe 5. The pressure regulating valve 17 is used to adjust the gas inlet pressure of the pipeline, the solenoid valve 16 is used to control the pipeline opening and closing, and the manual valve 18 can be manually adjusted as needed to facilitate maintenance and inspection.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sulfide conveying device, characterized in that, The system includes a silo (1), a gas tank (2), a storage tank (3), and a negative pressure fan (4). The storage tank (3) is equipped with an intercepting filter bag (14) to divide the interior of the storage tank (3) into a negative pressure chamber and a storage chamber. A first connecting pipe (6) connects the gas tank (2) and the discharge chamber. The bottom discharge port of the silo (1) is connected to the first connecting pipe (6). An airlock valve (7) is installed at the discharge port of the silo (1). The first connecting pipe (6) is provided with a first control valve group (8) for controlling the opening and closing of the pipeline. The negative pressure chamber and the negative pressure fan (4) are connected through the second connecting pipe (10). The storage tank (3) is also provided with an air supply pipe (5). The air supply pipe (5) is provided with a second control valve group. The second connecting pipe (10) is provided with a third control valve group (12). The bottom of the storage tank (3) is provided with a discharge port. A discharge control valve (19) is installed at the discharge port.

2. The sulfide conveying device according to claim 1, characterized in that, A positioning ring is connected to the lower part of the storage tank (3), and a weighing sensor (20) is provided below the positioning ring.

3. The sulfide conveying device according to claim 1, characterized in that, A vacuum breaking pipe (11) is also connected to the second connecting pipe (10), and a third control valve is provided on the vacuum breaking pipe (11).

4. The sulfide conveying device according to claim 1, characterized in that, An annular clamp (13) is fixedly installed on the inner wall of the storage tank (3). The middle part of the annular clamp (13) is hollow. The intercepting bag (14) is fixed in a planar shape and covers the hollow part of the annular clamp (13).

5. A sulfide conveying device according to claim 1, characterized in that, Two pressure transmitters (15) are installed on the storage tank (3), and the detection ends of the two pressure transmitters (15) are respectively connected to the negative pressure chamber and the discharge chamber.

6. The sulfide conveying device according to claim 1, characterized in that, The air supply pipe (5) is connected to two air outlet pipes. The two air outlet pipes of the air supply pipe (5) are respectively connected to the negative pressure chamber and the discharge chamber. The second control valve group is provided in two sets and is arranged on the two air outlet pipes respectively.

7. A sulfide conveying device according to claim 6, characterized in that, The second control valve group includes a manual valve (18), a pressure regulating valve (17), and a solenoid valve (16) arranged in sequence according to the air supply direction of the air supply pipe (5).

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