Foundation pit ventilation system of electrolytic furnace equipment

Abstract

The utility model provides a foundation pit ventilation system of electrolytic furnace equipment, which relates to the technical field of metallurgical environment safety, and comprises a ventilation pipeline, a ventilation pipeline, an air inlet, a ventilation pipeline, a ventilation pipeline, a ventilation pipeline and a ventilation pipeline, and is characterized in that the ventilation pipeline is positioned in a gap between the electrolytic furnace equipment and the edge of a foundation pit; the fan is communicated with the air inlet of the ventilation pipeline; the argon detection device is arranged at the air outlet of the air exchange pipeline; and the electric control cabinet is arranged in the foundation pit and is electrically connected with the argon detection device and the fan. The device has the beneficial effects that the concentration of argon in the foundation pit can be monitored in real time, and once the concentration exceeds a preset safety threshold value, an alarm can be triggered or a fan can be automatically started for ventilation. And the electric control cabinet can also realize automatic control and remote monitoring of the system, so that the complexity and the safety risk of manual operation are greatly reduced. By means of the device, argon which is accumulated in the foundation pit and possibly leaks and other harmful gas generated due to high temperature can be exhausted, and meanwhile fresh air or treated air is introduced, so that the freshness and safety of the air in the foundation pit are kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical environmental safety technical field especially, relate to a kind of foundation pit ventilation system of electrolytic furnace equipment. BACKGROUND

[0002] In the process of preparing high-purity titanium crystals by molten salt electrolysis, electrolytic furnaces play a crucial role. They need to operate stably under extremely high-temperature conditions, usually above 600°C, to ensure the precise purification of titanium metal. To prevent oxidation of materials inside the furnace at high temperatures, inert gas - argon is commonly used as a protective gas, filling the entire furnace cavity. These electrolytic furnaces are usually placed in underground pits to reduce interference from the external environment, and at the same time, a distance of 2-3 meters is maintained between electrolytic furnaces to comply with safety operation standards.

[0003] However, such a layout also brings a series of challenges. First, the use of argon gas must be strictly controlled to prevent its leakage into the limited space of the pit, leading to excessive argon concentration, which not only wastes resources but also may pose a safety hazard. Second, due to the relatively closed space inside the pit, gas flow is slow, and if temperature control is not proper, overheating problems are easily triggered, further exacerbating safety risks.

[0004] The traditional solution is to use axial flow fans for ventilation, but this method has obvious shortcomings. The fan needs to be manually started by hand, which is not only cumbersome to operate but also has limited air volume, with unsatisfactory results, especially in terms of exhausting accumulated waste gas at the bottom. More importantly, the lack of automatic monitoring and automatic starting functions makes the system unable to flexibly adjust according to actual conditions, further limiting its effectiveness.

[0005] Therefore, how to innovate this system to achieve intelligent linkage of electrolytic furnace equipment pit ventilation and exhaust has become an important issue to ensure the safe production environment of the molten salt electrolysis purification of high-purity titanium process. Simplifying the operation process, reducing safety risks, and promoting the visualization, automation, and intelligent upgrading of the pit ventilation and ventilation system have become key problems that need to be solved urgently. INVENTION CONTENTS

[0006] In view of the problems existing in the prior art, the utility model provides a kind of foundation pit ventilation system of electrolytic furnace equipment, comprising:

[0007] Ventilation pipeline is located in the gap between electrolytic furnace equipment and the edge of pit, and the air outlet of the ventilation pipeline faces the electrolytic furnace equipment;

[0008] Fan is connected to the air inlet of the ventilation pipeline;

[0009] Argon detection device is arranged at the air outlet of the ventilation pipeline;

[0010] An electric control cabinet is arranged in the foundation pit and electrically connected with the argon detection device and the fan.

[0011] Preferably, the ventilation pipeline comprises:

[0012] Two main pipelines are arranged in the gaps between the electrolytic furnace equipment and the edges of the foundation pit, and the gas inlets of the two main pipelines are communicated with each other and with the fan;

[0013] Branch pipelines are arranged on each of the main pipelines, and the gas outlets of each branch pipeline are directed towards the electrolytic furnace equipment.

[0014] Preferably, the branch pipelines on each main pipeline are arranged in sequence along the length direction of the foundation pit.

[0015] Preferably, the gas outlet of each branch pipeline is provided with an elbow, and the elbow is bent towards the bottom of the electrolytic furnace equipment.

[0016] Preferably, the gas outlet of each branch pipeline is provided with a dustproof grille.

[0017] Preferably, one argon detection device is mounted on each dustproof grille.

[0018] Preferably, the height of the argon detection device from the ground is 10 cm.

[0019] Preferably, the fan is a box fan.

[0020] The above technical solution has the following advantages or beneficial effects:

[0021] The argon detection device can monitor the concentration of argon in the foundation pit in real time, and once the concentration exceeds the preset safety threshold, an alarm can be triggered or the fan can be automatically started for ventilation. The electric control cabinet can also realize automatic control and remote monitoring of the system, greatly reducing the complexity and safety risk of manual operation.

[0022] The gas around the electrolytic furnace can be directly replaced, effectively reducing the accumulation of argon and other harmful gases. Through the ventilation pipeline, the accumulated waste gas (including possible leaked argon) and other harmful gases generated due to high temperature in the foundation pit can be discharged, while fresh air or treated air is introduced to maintain the freshness and safety of the air in the foundation pit. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 In a preferred embodiment of the present application, a top view structural schematic diagram of a foundation pit ventilation system of an electrolytic furnace equipment is provided.

[0024] Figure 2For the preferred embodiment of the utility model, the side structure schematic diagram of branch pipe way. DETAILED DESCRIPTION

[0025] The utility model will be explained in detail below in combination with the drawings and specific embodiments. The utility model is not limited to this embodiment, as long as it conforms to the main idea of the utility model, other embodiments can also belong to the scope of the utility model.

[0026] In the preferred embodiment of the utility model, based on the above problems existing in the prior art, an electrolytic furnace equipment foundation pit ventilation system is provided, as shown in the figure, comprising: Figure 1

[0027] Ventilation pipeline 1 is located in the gap between electrolytic furnace equipment 10 and the edge of foundation pit 20, and the air outlet of ventilation pipeline 1 faces electrolytic furnace equipment 10.

[0028] Fan 2 is connected to the air inlet of ventilation pipeline 1.

[0029] Argon detection device 3 is arranged at the air outlet of ventilation pipeline 1.

[0030] Electric control cabinet 4 is arranged in foundation pit 20 and electrically connected with argon detection device 3 and fan 2.

[0031] Specifically, the foundation pit ventilation system of the electrolytic furnace equipment provided in the embodiment is ingenious, which is arranged in the gap between the electrolytic furnace equipment and the edge of the foundation pit, and the air outlet directly faces the electrolytic furnace equipment. Such layout ensures that the ventilation system can directly replace the gas around the electrolytic furnace, effectively reducing the accumulation of argon and other harmful gases. Through the ventilation pipeline, the accumulated exhaust gas (including the argon gas that may leak) in the foundation pit and other harmful gases generated due to high temperature can be discharged, while fresh air or treated air is introduced to maintain the freshness and safety of the air in the foundation pit.

[0032] The fan provides power to circulate and replace the gas in the foundation pit through the ventilation pipeline. Its strong suction and exhaust capacity can ensure that even the gas at the bottom layer can be effectively discharged, thereby solving the problem of small air volume and poor effect of the traditional axial flow fan.

[0033] The argon detection device can monitor the concentration of argon in the foundation pit in real time, and once the concentration exceeds the preset safety threshold, the alarm can be triggered or the fan can be automatically started for ventilation. This function not only improves the safety of the system, but also realizes intelligent monitoring of the gas environment in the foundation pit.

[0034] ​The electric control cabinet is the control center of the entire ventilation system and is electrically connected with the argon detection device and the fan. It is responsible for receiving the signal of the argon detection device and determining whether the fan needs to be started or adjusted according to the preset logic. At the same time, the electric control cabinet can also realize the automatic control and remote monitoring of the system, greatly reducing the complexity and safety risk of manual operation. Specifically, there are alarm lights and running indicator lights in the electric control cabinet, switch control fan start, and with a time counting module, the optional running logic in the electric control cabinet is as follows: 1. When the probe of the argon detection device does not alarm and the concentration meets the requirements, the opening mode of the fan is controlled according to the time, that is, it runs once every 4 hours according to the production requirements, and the single running time is 20 minutes; 2. When the probe of the argon detection device alarms when the concentration exceeds the upper limit value, the fan is started immediately after receiving the alarm signal, and if the alarm is not removed after running for 20 minutes, the fan will continue to run. When the argon concentration is lower than the upper limit value, no alarm signal is sent, and the fan stops running according to the time. 3. When the production personnel follow the temporary production requirements, the fan can be manually started or stopped. Among them, the running time and argon concentration can be set by themselves.

[0035] In the preferred embodiment of the utility model, the ventilation pipeline 1 comprises:

[0036] Two main pipelines 11 are located in the gap between the electrolytic furnace equipment 10 and the edge of the foundation pit 20, and the air inlets of the two main pipelines 11 are communicated through a three-way pipe 13 and communicated with the fan 2;

[0037] Branch pipelines 12 are arranged on each main pipeline 11, and the air outlets of each branch pipeline 12 face the electrolytic furnace equipment 10.

[0038] Specifically, in the embodiment, a steel platform for fixing the electrolytic furnace equipment is arranged in the foundation pit, the main pipeline is arranged on the lower side of the steel platform, and the electrolytic furnace equipment and the edge of the foundation pit have a gap, the main pipeline is arranged in the gap, and the argon (and other gases) existing in the gap is ventilated to ensure that the ventilation system can directly replace the gas around the electrolytic furnace, effectively reducing the accumulation of argon and other harmful gases.

[0039] In the preferred embodiment of the utility model, each branch pipeline 12 on each main pipeline 11 is arranged in sequence along the length direction of the foundation pit 20. The whole is designed according to the trend of the steel structure of the foundation pit, and does not hinder the maintenance channel.

[0040] Further, in the embodiment, a plurality of branch pipelines are arranged in sequence along the length direction of the foundation pit, and the branch pipelines are arranged in sequence along the length direction of the foundation pit, which can ensure that the gas around the electrolytic furnace equipment is uniformly replaced. Each branch pipeline can replace the local gas around the electrolytic furnace equipment, avoiding the problem of gas accumulation or poor flow in some areas.

[0041] By the simultaneous operation of multiple branch pipes, the overall efficiency of the ventilation system can be significantly improved. Each branch pipe can independently exhaust waste gas and introduce fresh air, thereby accelerating the renewal speed of the gas in the foundation pit.

[0042] Through the ventilation pipe, the accumulated waste gas (including the possible leakage of argon) and other harmful gases generated due to high temperature in the foundation pit can be exhausted, while fresh air or treated air is introduced to maintain the freshness and safety of the air in the foundation pit.

[0043] In the preferred embodiment of the present application, as shown in the accompanying drawings, the gas outlet of each branch pipe 12 is provided with an elbow 14, which is bent towards the bottom of the electrolytic furnace equipment. The branch pipe 12 is also provided with an adjusting valve 15, which can adjust the exhaust air volume and control the valve height from the ground to be 1.5 m. The elbow 14 is a 90° elbow, which is 200 mm from the ground. Figure 2

[0044] Specifically, the density of argon is about 1.7837 kg / m 3 , which is greater than the density of air (about 1.29 g / L at normal temperature and pressure), and will deposit at the bottom of the foundation pit. The elbow provided on the branch pipe can change the direction of the gas outlet of the branch pipe, and fully ventilate the argon at the bottom of the electrolytic furnace equipment.

[0045] In the preferred embodiment of the present application, a dust screen is provided at the gas outlet of each branch pipe 12.

[0046] Specifically, the dust screen can effectively intercept and filter out dust particles in the air, preventing them from entering the branch pipe and the interior of the electrolytic furnace equipment along with the airflow. This not only maintains the cleanliness of the equipment, but also prolongs the service life of the equipment.

[0047] In the preferred embodiment of the present application, an argon detection device 3 is installed on each dust screen.

[0048] Specifically, multiple-point and multiple-probe distributed monitoring positions are achieved.

[0049] In the preferred embodiment of the present application, the height of the argon detection device from the ground is 10 cm.

[0050] In the preferred embodiment of the present application, the fan 2 is a box-type fan. The fan 2 is connected to the ventilation pipe 1 by a hose, and the fan 2 is suspended on a steel platform. The exhaust port of the fan is opposite to the upper side of the steel platform, and the return distance of the exhaust pipe is 1000 mm, which ensures smooth exhaust.

[0051] Specifically, the parameters of the fan in the present embodiment are as follows: power: 5.5 KW, air volume: 13000-15000 m 3 ​ / h, pressure: 600-650Pa, brand: Shandong Jin Song, since the low noise outer rotor fan is double suction, the fan must be installed in the air bellow.

[0052] The above are only the preferred embodiments of the present application, and are not intended to limit the embodiments and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious change made according to the content of the present application and drawings should be included in the protection scope of the present application.

Claims

1. A caisson ventilation system for an electrolytic furnace installation, characterized in that, The utility model relates to an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection.

2. The excavation ventilation system of claim 1, wherein, The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection.

3. The excavation ventilation system of claim 2, wherein, The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection.

4. The excavation ventilation system of claim 2, wherein, The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection.

5. The excavation ventilation system of claim 2, wherein, The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection.

6. The excavation ventilation system of claim 5, wherein, The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection.

7. The excavation ventilation system of claim 1, wherein, The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection.

8. The excavation ventilation system of claim 1, wherein, The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs to the technical field of argon detection. The utility model discloses an argon detection device for electrolytic furnace equipment, and belongs

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