Automatic sulfur feeding system

Abstract

The utility model discloses an automatic sulfur feeding system, which relates to the technical field of sulfur hexafluoride production, aims to solve the problem that the existing sulfur feeding mode is non-automatic, and comprises a sulfur melting tank, and a dust removal device, a temperature measuring device, a manipulator, a heating device and a molten sulfur conveying device which are controlled by a control device, a feeding port is formed in the top of the sulfur melting tank, the manipulator is used for transferring solid sulfur into the sulfur melting tank, a dust removal device is arranged above the feeding port, certain dust is generated along with feeding, the dust is sucked away and treated uniformly through the dust removal device, and the sulfur melting tank is further provided with a temperature measuring device used for monitoring the temperature in the sulfur melting tank in real time. The heating device is connected with the sulfur melting tank and is used for heating solid sulfur to be molten into liquid sulfur, the molten sulfur conveying device is arranged in the sulfur melting tank and is connected with the plurality of reactors, and after the liquid sulfur is generated in the sulfur melting tank, the molten sulfur conveying device is controlled to be started to convey the liquid sulfur in the sulfur melting tank to each connected reactor.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfur hexafluoride production, and more specifically to an automatic sulfur feeding system. Background Art

[0002] Sulfur hexafluoride is produced by the reaction of fluorine gas and sulfur. In industry, fluorine gas and molten sulfur are generally used to react. The sulfur in the reactor is kept in a molten state to react with the introduced fluorine gas. In the existing sulfur hexafluoride production, sulfur is added manually in a multi-point dispersion mode (there are as many addition points as there are sulfur hexafluoride reactions). There are many operation points and a large amount of manual work. At the same time, all the feeding points are located in the explosion area of ​​the electrolysis workshop, which has a relatively high operating risk. In addition, a crane is required for feeding, and the lifting operation is frequent. In addition, dust is easily generated at the feeding port during the feeding process, which increases the risk. In addition, the sulfur liquid level in the existing sulfur hexafluoride reactor is mostly detected manually. This operation has certain operational risks, and the liquid level detection cannot be done in real time and accurately.

[0003] Therefore, how to solve the problem of the non-automaticity of the existing sulfur feeding method is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an automatic sulfur feeding system, which concentrates scattered feeding points into one place, feeds uniformly, and supplies solid sulfur to each reactor after melting, thereby reducing the number of operating points, reducing the workload, and realizing the automatic operation of sulfur feeding.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sulfur automatic feeding system, comprising:

[0007] The sulfur melting tank is a closed structure. A feeding port is provided on the top of the sulfur melting tank. A dust removal device is provided above the feeding port. The sulfur melting tank is also provided with a temperature measuring device.

[0008] A manipulator, used to transfer solid sulfur to the sulfur melting tank;

[0009] A heating device, connected to the sulfur melting tank, used to heat solid sulfur to melt it into liquid sulfur;

[0010] A molten sulfur conveying device is arranged in the molten sulfur tank and connected to a plurality of reactors;

[0011] The dust removal device, the temperature measuring device, the manipulator, the heating device and the molten sulfur conveying device are all connected with the control device.

[0012] Preferably, the reactor is provided with a radar level gauge connected to the control device.

[0013] Preferably, a gas outlet is provided at the top of the reactor, the gas outlet is connected to a purification device, and the purification device is connected to a control device.

[0014] Preferably, a stirring device for stirring solid sulfur and liquid sulfur is also provided in the sulfur melting tank, and the stirring device is connected to the control device.

[0015] Preferably, the heating device comprises:

[0016] Boiler, the boiler is used to produce high-temperature steam, and the boiler outlet is connected to the bottom of the molten sulfur tank through a pipeline;

[0017] The one-way valve is arranged in the pipeline and is connected with the control device.

[0018] Preferably, the molten sulfur conveying device comprises:

[0019] A delivery pipe, one end of which is arranged in the sulfur melting tank, and the other end of which is connected to the reactor. A control valve is arranged on the delivery pipe, and the control valve is connected to the control device;

[0020] The pressure pump is arranged in the delivery pipe and is connected with the control device.

[0021] Preferably, a filtering device is provided at one end of the delivery pipe located in the molten sulfur tank, and the filtering device is connected to the control device.

[0022] Preferably, the dust removal device comprises:

[0023] The cloth belt dust collector is arranged above the feeding port, and the bag dust collector is connected to the control device;

[0024] The induced draft fan is connected to the bag dust collector, and the induced draft fan is connected to the control device.

[0025] Preferably, the reactor is connected to the fluorine gas electrolyzer through a pipeline, the fluorine gas electrolyzer is connected to the control device, a fluorine gas cyclone separator connected to the control device is provided on the pipeline, a first outlet valve for controlling the opening and closing of the gas outlet of the fluorine gas electrolyzer is provided on the pipeline, and a second outlet valve for controlling the opening and closing of the gas outlet of the fluorine gas cyclone separator is also provided on the pipeline, and both the first outlet valve and the second outlet valve are connected to the control device.

[0026] Preferably, the reactor is connected to the over-temperature interlocking electrolysis cell, a circulating cooling water channel is provided in the reactor, and both the over-temperature interlocking electrolysis cell and the circulating cooling water channel are connected to the control device.

[0027] The automatic sulfur feeding system provided by the utility model comprises a sulfur melting tank, a dust removal device, a temperature measuring device, a manipulator, a heating device, a sulfur melting conveying device and a control device. Specifically, the dust removal device, the temperature measuring device, the manipulator, the heating device and the sulfur melting conveying device are all connected with the control device, and the operation states of the dust removal device, the temperature measuring device, the manipulator, the heating device and the sulfur melting conveying device are controlled by the control device. The sulfur melting tank is a closed structure, and a feeding port is provided on the top of the sulfur melting tank. The manipulator is used to transport solid sulfur into the sulfur melting tank. The control device controls the manipulator to add solid sulfur into the sulfur melting tank through the feeding port. A dust removal device is provided above the feeding port. When feeding, a certain amount of dust will be generated. During the feeding process, the dust removal device is controlled to start, and the generated dust is sucked away for unified treatment, so as to avoid the occurrence of operational hazards caused by dust. The sulfur melting tank is also provided with a temperature measuring device, and the temperature measuring device is used to monitor the temperature in the sulfur melting tank in real time, and feed back the monitored signal to the control device in real time, and the next action is controlled by the control device.

[0028] The heating device is connected to the sulfur melting tank and is used to heat solid sulfur to melt it into liquid sulfur. After the manipulator transfers the solid sulfur to the sulfur melting tank, the control device controls the heating device to heat the sulfur melting tank to melt the solid sulfur to obtain molten liquid sulfur. The molten sulfur conveying device is arranged in the sulfur melting tank and connected to multiple reactors. When liquid sulfur is generated in the sulfur melting tank, the control device controls the molten sulfur conveying device to start, suck out the liquid sulfur in the sulfur melting tank and convey it to each connected reactor.

[0029] The automatic sulfur feeding system set up in the above manner can realize the automation of the feeding process, and can also concentrate scattered feeding points at one place, feed them uniformly, and supply them to various reactors after melting, thereby reducing the number of operation points and the workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0031] Figure 1 This is a schematic diagram of the structure of the sulfur melting part of the automatic sulfur feeding system provided by the utility model;

[0032] Figure 2 This is a schematic structural diagram of the fluorine-sulfur reaction part of the automatic sulfur feeding system provided by the utility model.

[0033] Reference numerals:

[0034] 1- molten sulfur tank, 11- feeding port;

[0035] 2-dust removal device, 21-bag dust collector, 22-induced draft fan;

[0036] 3- Heating device;

[0037] 4- Molten sulfur conveying device;

[0038] 5-reactor;

[0039] 6- Radar level gauge;

[0040] 7-Purification device;

[0041] 8-Fluorine cyclone separator;

[0042] 9- Circulating cooling water channel. DETAILED DESCRIPTION

[0043] 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.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] It should be noted that the directional words such as "upper" and "lower" mentioned below are defined based on the drawings in the specification.

[0046] The core of the utility model is to provide an automatic sulfur feeding system, which centralizes scattered feeding points to one place, feeds uniformly, and supplies solid sulfur to each reactor 5 after melting, thereby reducing operation points, reducing workload, and realizing automatic sulfur feeding.

[0047] Please refer to Figure 1 and Figure 2 A sulfur automatic feeding system includes a sulfur melting tank 1, a dust removal device 2, a temperature measuring device, a manipulator, a heating device 3, a molten sulfur conveying device 4, a reactor 5 and a control device.

[0048] Specifically, the dust removal device 2, the temperature measuring device, the manipulator, the heating device 3 and the molten sulfur conveying device 4 are all connected to the control device, and the operating states of the dust removal device 2, the temperature measuring device, the manipulator, the heating device 3 and the molten sulfur conveying device 4 are controlled by the control device. The molten sulfur tank 1 is a closed structure, and a feeding port 11 is provided on the top of the molten sulfur tank 1. The manipulator is used to transport solid sulfur into the molten sulfur tank 1. The control device controls the manipulator to add solid sulfur into the molten sulfur tank 1 through the feeding port 11. A dust removal device 2 is provided above the feeding port 11. When feeding, a certain amount of dust will be generated. During the feeding process, the dust removal device 2 is controlled to start, and the generated dust is sucked away for unified treatment to avoid the occurrence of operational hazards caused by dust. The molten sulfur tank 1 is also provided with a temperature measuring device. The temperature measuring device is used to monitor the temperature in the molten sulfur tank 1 in real time, and feed back the monitored signal to the control device in real time, and the next action is controlled by the control device.

[0049] The heating device 3 is connected to the sulfur melting tank 1 and is used to heat solid sulfur to melt it into liquid sulfur. After the robot transfers the solid sulfur to the sulfur melting tank 1, the control device controls the heating device 3 to heat the sulfur melting tank 1 to melt the solid sulfur to obtain molten liquid sulfur. The molten sulfur conveying device 4 is arranged in the sulfur melting tank 1 and connected to multiple reactors 5. When liquid sulfur is generated in the sulfur melting tank 1, the control device controls the molten sulfur conveying device 4 to start, suck out the liquid sulfur in the sulfur melting tank 1 and convey it to each connected reactor 5.

[0050] Among them, the solid sulfur in the melting tank is added by automatic feeding operation of automatic clamping and automatic bag breaking by a manipulator, so as to realize the automatic operation of sulfur feeding. In this embodiment, the only feeding point is set in a non-explosion-proof area, which reduces the operation risk.

[0051] The automatic sulfur feeding system arranged in the above manner can realize the automation of the feeding process, and can also centralize the scattered feeding points to one place, feed them uniformly, and supply them to each reactor 5 after melting, thereby reducing the number of operation points and the workload.

[0052] In the above embodiment, the reactor 5 is provided with a radar level meter 6 connected to the control device.

[0053] It should be noted that a radar level meter 6 is installed on the reactor 5 to monitor the liquid level of sulfur in the reactor 5 in real time. When the liquid level is lower than the set value, the control device controls the molten sulfur conveying device 4 to start and replenish liquid sulfur to the reactor 5. When the liquid level is higher than the set value, the molten sulfur conveying device 4 is controlled to be closed and sulfur replenishment is stopped.

[0054] In this embodiment, the liquid level detection device is set as a radar level meter 6, but in practical applications, there is no limitation to this, as long as the above technical effects can be achieved.

[0055] In the above case, a gas outlet is provided at the top of the reactor 5, the gas outlet is connected to the purification device 7, and the purification device 7 is connected to the control device.

[0056] It can be understood that when liquid sulfur and fluorine gas react to generate sulfur hexafluoride, the sulfur hexafluoride is discharged from the gas outlet of the reactor 5 to the purification device 7, and the control device controls the purification device 7 to start and treat the sulfur hexafluoride, and the treated sulfur hexafluoride is transported to the gas storage tank.

[0057] Furthermore, a stirring device for stirring solid sulfur and liquid sulfur is also provided in the sulfur melting tank 1, and the stirring device is connected to the control device.

[0058] It should be noted that when the heating device 3 heats the solid sulfur in the sulfur melting tank 1, the control device controls the stirring device to start, so as to accelerate the melting of the solid sulfur into liquid sulfur.

[0059] In the above embodiment, the heating device 3 includes a boiler and a one-way valve. The boiler is used to produce high-temperature steam. The gas outlet of the boiler is connected to the bottom of the sulfur melting tank 1 through a pipeline. The one-way valve is arranged on the pipeline and connected to the control device.

[0060] It can be understood that when the solid sulfur in the sulfur melting tank 1 needs to be heated, the control device controls the one-way valve to open, so that the high-temperature steam in the boiler is transported into the sulfur melting tank 1 through the pipeline to heat the solid sulfur in the sulfur melting tank 1 and melt the solid sulfur into liquid sulfur.

[0061] On the basis of the above embodiment, the molten sulfur conveying device 4 includes a conveying pipe and a pressure pump, one end of the conveying pipe is arranged in the molten sulfur tank 1, and the other end of the conveying pipe is connected to the reactor 5. A control valve connected to the control device is provided on the conveying pipe, and the pressure pump is arranged in the conveying pipe and connected to the control device.

[0062] It should be noted that when the radar level gauge 6 monitors that the liquid level of sulfur in the reactor 5 is lower than the set value, liquid sulfur needs to be delivered to the reactor 5, and the control device controls the pressure pump and the control valve to open, and delivers liquid sulfur to the reactor 5 through the delivery pipe. When the radar level gauge 6 monitors that the liquid level of sulfur in the reactor 5 is higher than the set value, the control device controls the pressure pump and the control valve to close, and stops delivering liquid sulfur to the reactor 5.

[0063] In the above embodiment, a filtering device is provided at one end of the delivery pipe located in the molten sulfur tank 1, and the filtering device is connected to the control device.

[0064] It is understandable that solid sulfur is melted into liquid sulfur when high-temperature steam is introduced. However, when liquid sulfur is transported, small particles of solid sulfur that have not yet been melted are accompanied. If it is transported directly, it may block the transport pipe. By setting a filtering device, the liquid sulfur can be filtered to avoid clogging the transport pipe. In addition, the transport pipe is heated and insulated to prevent the liquid sulfur from solidifying under the influence of the ambient temperature.

[0065] Among them, in this embodiment, the filtering of liquid sulfur is achieved by setting a filtering device at one end of the conveying pipe, but in practical applications, there is no limitation to this, as long as the above technical effect can be achieved.

[0066] As a preferred embodiment, the dust removal device 2 includes a belt dust collector and an induced draft fan 22. The belt dust collector is arranged above the feeding port 11 and connected to the control device. The induced draft fan 22 is connected to the bag dust collector 21 and connected to the control device.

[0067] It should be noted that when the control device controls the manipulator to feed materials into the molten sulfur tank 1 , it also controls the cloth belt dust collector and the induced draft fan 22 to open, so as to absorb and process the dust at the feeding port 11 .

[0068] In the above situation, the reactor 5 is connected to the fluorine gas electrolyzer through a pipeline, the fluorine gas electrolyzer is connected to the control device, a fluorine gas cyclone separator 8 connected to the control device is provided on the pipeline, a first outlet valve for controlling the opening and closing of the gas outlet of the fluorine gas electrolyzer is provided on the pipeline, and a second outlet valve for controlling the opening and closing of the gas outlet of the fluorine gas cyclone separator 8 is also provided on the pipeline, and both the first outlet valve and the second outlet valve are connected to the control device.

[0069] It can be understood that when fluorine gas needs to be introduced into the reactor 5, the control device controls the first outlet valve of the fluorine gas electrolyzer to open, so that the fluorine gas enters the fluorine cyclone separator 8 for impurity removal, and then controls the second outlet valve of the fluorine cyclone separator 8 to open, so that the fluorine gas enters the reactor 5 and reacts with the liquid sulfur in the reactor 5 to generate sulfur hexafluoride gas.

[0070] In the above embodiment, the reactor 5 is connected to the over-temperature interlocking electrolysis cell, a circulating cooling water channel 9 is provided in the reactor 5, and both the over-temperature interlocking electrolysis cell and the circulating cooling water channel 9 are connected to the control device.

[0071] It should be noted that the sulfur-fluorine reaction is an exothermic reaction. A circulating cooling water channel 9 is provided in the reactor 5. The control device controls the cooling water to flow into the circulating cooling water channel 9 to reduce the temperature of the reactor 5 and avoid damage to the reactor 5 due to high temperature.

[0072] In summary, in the automatic sulfur feeding system provided by the utility model, the control device controls the manipulator to clamp solid sulfur and add it into the melting tank for melting to obtain molten liquid sulfur, and the liquid sulfur is transported to each reactor 5 by an insulated conveying pipe. The radar level gauge 6 in the reactor 5 monitors the sulfur liquid level in the reactor 5 in real time. When the liquid level is lower than the set value, the molten sulfur conveying device 4 is controlled to start and liquid sulfur is added to the reactor 5. When the liquid level is higher than the set value, the molten sulfur conveying device 4 is controlled to be closed and sulfur replenishment is stopped.

[0073] The scattered feeding points are concentrated at one place, and the feeding is unified. After melting, the feeding is supplied to each reactor 5, which reduces the number of operation points and the workload. Each reactor 5 is charged with liquid sulfur, which eliminates the dust generation point on site. A radar level meter 6 is added to the reactor 5 to make the sulfur level detection more real-time and accurate, and also reduce the frequency of driving.

[0074] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0075] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The above is a detailed introduction to the automatic sulfur feeding system provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A sulfur automatic feeding system, characterized in that: include: The sulfur melting tank (1) is a closed structure. A feeding port (11) is provided at the top of the sulfur melting tank (1). A dust removal device (2) is provided above the feeding port (11). The sulfur melting tank (1) is also provided with a temperature measuring device. A manipulator, used for transferring solid sulfur into the sulfur melting tank (1); A heating device (3) connected to the sulfur melting tank (1), the heating device (3) being used to heat the solid sulfur to melt it into liquid sulfur; A molten sulfur conveying device (4) is disposed in the molten sulfur tank (1) and connected to a plurality of reactors (5); The dust removal device (2), the temperature measuring device, the manipulator, the heating device (3) and the molten sulfur conveying device (4) are all connected to a control device.

2. The automatic sulfur feeding system according to claim 1, characterized in that: The reactor (5) is provided with a radar level meter (6) connected to the control device.

3. The automatic sulfur feeding system according to claim 2, characterized in that: The top of the reactor (5) is provided with a gas outlet, the gas outlet is connected to a purification device (7), and the purification device (7) is connected to the control device.

4. The automatic sulfur feeding system according to claim 3, characterized in that: The molten sulfur tank (1) is also provided with a stirring device for stirring the solid sulfur and the liquid sulfur, and the stirring device is connected to the control device.

5. The automatic sulfur feeding system according to claim 4, characterized in that: The heating device (3) comprises: A boiler, the boiler is used to produce high-temperature steam, the gas outlet of the boiler is connected to the bottom of the sulfur melting tank (1) through a pipeline; A one-way valve is arranged on the pipeline, and the one-way valve is connected to the control device.

6. The automatic sulfur feeding system according to claim 5, characterized in that: The molten sulfur conveying device (4) comprises: a delivery pipe, one end of which is arranged in the molten sulfur tank (1), the other end of which is connected to the reactor (5), the delivery pipe being provided with a control valve, the control valve being connected to the control device; A pressure pump is arranged on the delivery pipe, and the pressure pump is connected to the control device.

7. The automatic sulfur feeding system according to claim 6, characterized in that: One end of the delivery pipe located in the molten sulfur tank (1) is provided with a filtering device, and the filtering device is connected to the control device.

8. The automatic sulfur feeding system according to claim 7, characterized in that: The dust removal device (2) comprises: A bag dust collector (21) is disposed above the feeding port (11), and the bag dust collector (21) is connected to the control device; An induced draft fan (22) is connected to the bag filter (21), and the induced draft fan (22) is connected to the control device.

9. The automatic sulfur feeding system according to claim 8, characterized in that: The reactor (5) is connected to the fluorine gas electrolyzer via the pipeline, the fluorine gas electrolyzer is connected to the control device, a fluorine gas cyclone separator (8) connected to the control device is provided on the pipeline, a first outlet valve for controlling the opening and closing of the gas outlet of the fluorine gas electrolyzer is provided on the pipeline, and a second outlet valve for controlling the opening and closing of the gas outlet of the fluorine gas cyclone separator (8) is also provided on the pipeline, and both the first outlet valve and the second outlet valve are connected to the control device.

10. The automatic sulfur feeding system according to any one of claims 1 to 9, characterized in that: The reactor (5) is connected to an over-temperature interlocking electrolysis cell, a circulating cooling water channel (9) is provided in the reactor (5), and both the over-temperature interlocking electrolysis cell and the circulating cooling water channel (9) are connected to the control device.

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