External communication type filter liquid level monitoring device

Abstract

The utility model relates to an external communication type filter tank liquid level monitoring device, belongs to the metallurgical ironmaking equipment technology, and aims to solve the problem of inaccurate filter tank liquid level monitoring in a blast furnace ironmaking bottom filtration method slag treatment process. The device comprises a filter tank, a partition plate, a communication water well, a radar liquid level meter and a side suction cover body, wherein the filter tank contains a slag-water mixture, a multi-stage filter layer and bottom low-turbidity clear water. The filter tank, the partition plate and the communicating water well are integrally communicated, low turbidity of filtered water in the communicating water well is guaranteed through the opening design of the partition plate, and liquid level detection is facilitated. The radar liquid level meter is arranged on the upper portion of the communicating well, the side suction cover body is arranged on the upper portion of the communicating well, and interference of hot water vapor on the radar liquid level meter is relieved. According to the scheme, through the design, the accuracy of liquid level monitoring in the filter tank is greatly improved, air suction of the filter tank is avoided, production is effectively guided, and the stability and efficiency of a blast furnace ironmaking process are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical ironmaking equipment and relates to an externally connected filter tank liquid level monitoring device. Background Art

[0002] In contemporary blast furnace ironmaking, bottom filtration slag treatment technology is favored for its efficiency and reliability. The core of the process is the filter layer, which is generally composed of natural pebbles or specially designed filter plates, aiming to achieve efficient separation of slag and water. However, over time, the use of the filter layer inevitably leads to some technical challenges. First, the permeability of the filter layer gradually becomes uneven, which directly affects the distribution of the slag-water mixture above the filter layer, resulting in uneven accumulation. In addition, the diversity of materials in the filter tank further exacerbates the complexity of liquid level monitoring. These factors work together to make it difficult for traditional liquid level monitoring methods to accurately reflect the actual liquid level in the filter tank.

[0003] In the existing patent literature, there are relatively few discussions on filter tank level monitoring for bottom filtration processes, and the focus is mainly on process optimization rather than the accuracy of level monitoring. This has led to a technical gap in filter tank level measurement during production operations, affecting the stability and efficiency of the process. Therefore, an innovative solution is urgently needed to overcome the limitations of existing technologies and achieve accurate and reliable monitoring of filter tank level. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an externally connected filter tank liquid level monitoring device, which, through innovative design, effectively overcomes the challenges brought by the uneven water permeability of the filter layer, the uneven accumulation of slag-water mixtures, and the diversity of materials in the filter tank, and greatly improves the accuracy of liquid level monitoring. This not only helps to avoid the emptying of the filter tank, but also effectively guides production and ensures the continuity and efficiency of the blast furnace ironmaking process.

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

[0006] An externally connected filter tank liquid level monitoring device comprises:

[0007] The filter tank contains a mixture of slag and water, a multi-stage filter layer and clear water with low turbidity at the bottom; the connecting water well is arranged at the far end of the filter tank, and the partition is arranged at the bottom end of the side of the filter tank and the connecting water well, and is connected with the filter tank and the connecting water well; the mixture of slag and water in the filter tank, the filter tank, the partition, and the filtered water in the connecting water well are in the same connecting container;

[0008] The radar level gauge is installed at the upper part of the connected water well.

[0009] Optionally, a side suction cover is provided on the upper side of the connecting water well.

[0010] Optionally, a cover plate is provided on the top of the connecting water well.

[0011] Optionally, the partition is a grid plate or a steel plate with uniform holes, and the holes on the partition are smaller than the particle size of the filter material in the multi-stage filter layer.

[0012] Optionally, the connecting water well is arranged at the far end of the filter tank, and is arranged at the diagonally opposite corner where the filter tank slag water falls.

[0013] Optionally, the radar level meter is arranged at the upper part of the connecting water well, and the side suction cover is arranged at the upper side of the connecting water well and at the lower part of the radar level meter.

[0014] Optionally, a feed port is provided on the upper side of the filter tank for receiving the slag-water mixture after granulation of blast furnace slag.

[0015] The beneficial effects of the utility model are:

[0016] 1. Improve the accuracy of liquid level monitoring: Through the overall through-design of the filter tank, baffle and connecting water well, this solution effectively overcomes the challenges brought by the uneven water permeability of the filter layer, the uneven accumulation of the slag-water mixture and the diversity of materials in the filter tank, and greatly improves the accuracy of liquid level monitoring in the filter tank.

[0017] 2. Avoid filter tank emptying: Accurate liquid level monitoring helps avoid filter tank emptying, ensures stable operation of the filter tank during blast furnace ironmaking, and improves production efficiency and safety.

[0018] 3. Reduce maintenance frequency: The design of the radar level meter and side suction cover takes into account the characteristics of dustproof, steam-proof and waterproof, which reduces the maintenance frequency and extends the service life of the equipment.

[0019] 4. Optimize production guidance: Through real-time and accurate liquid level data, operators can better guide the production process, optimize the parameter settings of the blast furnace ironmaking process, and improve overall production efficiency.

[0020] 5. Strong adaptability: The design of this scheme takes into account the needs of blast furnace ironmaking plants of different sizes. The overall design of the device is easy to install and expand and has strong adaptability.

[0021] 6. Environmentally friendly: By improving the accuracy of liquid level monitoring, this solution helps reduce energy consumption and waste generation, and is environmentally friendly.

[0022] 7. Economic benefits: This solution brings significant economic benefits to users by reducing maintenance costs, improving production efficiency and optimizing process parameter settings.

[0023] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0025] Figure 1 This is a schematic elevation view of the structure of this scheme;

[0026] Figure 2 This is a schematic diagram of the structure of this scheme.

[0027] Figure numerals: 1 filter tank, 2 partition plate, 3 connecting water well, 4 radar level meter, 5 side suction cover. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0029] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] See also Figure 1-2 , this scheme includes the following structure:

[0032] Filter 1: Filter 1 is the core part of the device, which contains a mixture of slag and water, multi-stage filter layers and low-turbidity clean water at the bottom. The design of filter 1 takes into account the flow characteristics and filtration efficiency of the mixture of slag and water, ensuring the stable operation of filter 1 under high load.

[0033] Partition plate 2: partition plate 2 is arranged at the bottom of the side of filter tank 1 and connecting water well 3, and is designed to match the structure of filter tank 1 and connecting water well 3 to ensure the overall connectivity of filter tank 1 and connecting water well 3. Partition plate 2 can be a grid plate, a uniformly perforated steel plate or other forms, and the aperture of partition plate 2 itself is slightly smaller than the particle size of filter media in the multi-stage filter layer.

[0034] Connecting water well 3: Connecting water well 3 is arranged at the far end of filter tank 1, and the slag-water mixture in filter tank 1, filter tank 1, partition plate 2, and filtered water in connecting water well 3 are in the same connecting container. The design of connecting water well 3 takes into account the accuracy of liquid level monitoring and reduces liquid level disturbance.

[0035] Radar level gauge 4: The radar level gauge 4 is arranged at the upper part of the connected water well 3, which is convenient for inspection and maintenance and has high accuracy. The design of the radar level gauge 4 takes dust, steam and water into consideration, ensuring its reliability and accuracy in harsh environments.

[0036] Side suction cover 5: The side suction cover 5 is arranged on the upper side of the connecting water well 3 and below the radar level meter 4 to reduce the interference of hot water vapor in the connecting water well 3 on the monitoring of the radar level meter 4. The design of the side suction cover 5 allows for quick disassembly and installation for easy maintenance and replacement.

[0037] Working principle:

[0038] The slag-water mixture after granulation of blast furnace molten slag flows into the filter tank 1, and the slag in the filter tank 1 accumulates more and more, and the water level fluctuates within a small range; the partition 2 is arranged at the bottom end of the side of the filter tank 1 and the connecting water well 3, and the filter tank 1, the partition 2 and the connecting water well 3 are integrally connected, so as to achieve the effect of improving the accuracy of liquid level monitoring in the filter tank 1; the aperture of the partition 2 is slightly smaller than the particle size of the filter material at the bottom of the multi-stage filter layer, so as to ensure the low turbidity of the filtered water in the connecting water well 3, which is conducive to the detection of the liquid level; when the filter tank 1 is working, the side suction cover 5 Start to reduce the interference of hot water steam in the connecting water well 3 on the monitoring of the radar level meter 4; a cover plate is set on the top of the connecting water well 3 to increase the airtightness and reduce steam overflow; the connecting water well 3 is set at the diagonally opposite corner of the far end of the filter tank 1, where the residue accumulation of the filter tank 1 is the least, the liquid level disturbance is the smallest, and the liquid level in the connecting water well 3 is closest to the liquid level in the filter tank 1; the radar level meter 4 placed on the upper part of the connecting water well 3 monitors the liquid level in the filter tank 1 to avoid the filter tank 1 from being sucked empty to effectively guide production.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. An externally connected filter tank liquid level monitoring device, characterized in that: include: The filter tank (1) contains a slag-water mixture, a multi-stage filter layer and low-turbidity clear water at the bottom; the connecting water well (3) is arranged at the far end of the filter tank (1); the partition plate (2) is arranged at the bottom end of the side of the filter tank (1) and the connecting water well (3), and is connected to the filter tank (1) and the connecting water well (3); the slag-water mixture in the filter tank, the filter tank, the partition plate, and the filtered water in the connecting water well are in the same connecting container; The radar level meter (4) is arranged on the upper part of the communicating water well (3).

2. The externally connected filter tank liquid level monitoring device according to claim 1, characterized in that: A side suction cover (5) is provided on the upper side of the communicating water well (3).

3. The externally connected filter tank liquid level monitoring device according to claim 1, characterized in that: A cover plate is arranged on the top of the connecting water well (3).

4. The externally connected filter tank liquid level monitoring device according to claim 1, characterized in that: The partition is a grid plate or a steel plate with uniform openings, and the openings on the partition are smaller than the particle size of the filter material in the multi-stage filter layer.

5. The externally connected filter tank liquid level monitoring device according to claim 1, characterized in that: The communicating water well (3) is arranged at the far end of the filter tank (1), and is arranged at the diagonally opposite corner of the filter tank (1) where the slag water falls.

6. The externally connected filter tank liquid level monitoring device according to claim 2, characterized in that: The radar level gauge (4) is arranged at the upper part of the communicating water well (3), and the side suction cover (5) is arranged at the upper side of the communicating water well (3) and at the lower part of the radar level gauge (4).

7. The externally connected filter tank liquid level monitoring device according to claim 1, characterized in that: A feed port is provided on the upper side of the filter tank (1) for receiving the slag-water mixture after granulation of blast furnace molten slag.

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