A hot-rolled water treatment filtration device

Abstract

This utility model discloses a hot-rolling water treatment filtration device, belonging to the technical field of turbid circulating water treatment technology in the metallurgical industry. It includes a shell and a filtration section. The shell has an upper opening and a lower outlet, with several supports fixedly installed at the bottom. The filtration section is installed inside the shell, with an upper inlet that connects to the upper opening. Several filter media layers are arranged in the middle of the filtration section. A filter residue zone is located at the bottom of the filtration section, and a flow divider wall is provided between the filter media layers and the filter residue zone. The flow divider wall is densely covered with water outlet holes. This invention solves the technical problems of traditional hot-rolling water treatment high-speed filtration sections, such as easy material leakage, easy clogging of flushing nozzles, and inconvenient cleaning.

Description

Technical Field

[0001] This utility model relates to the field of turbid circulating water treatment technology in the metallurgical industry, and in particular to a hot rolling water treatment filtration device. Background Technology

[0002] The high-speed filter uses two different filter media, anthracite and quartz sand, as the filtration medium. Utilizing the large specific surface area, strong adsorption capacity, and high interception capacity of anthracite, it adsorbs and intercepts oil and suspended solids in the water. Simultaneously, the high specific gravity, small porosity, and strong interception capacity of quartz sand further intercept suspended solids in the water. This fully utilizes the adsorption capacity of the entire filter bed and filter layer surface area, maximizing the interception of pollutants and achieving excellent oil and suspended solids removal. The HF-type high-speed filter ensures high-quality effluent even when the raw water has a high concentration of suspended solids. In circulating water systems, it can significantly improve water quality, increase water recycling rates, and save water for businesses. It has been widely used in steel plants, primarily for purifying turbid water (containing iron oxide and floating oil) from rolling mills and continuous casting, as well as for side-channel filtration in circulating water systems, achieving very satisfactory results and gaining popularity among industrial and mining users.

[0003] Most existing high-speed filter backwashing anti-material leakage devices work by having the media inside the filter, such as quartz sand, anthracite, and pebbles, pushed to the top by water and air pressure during backwashing and flowing away through the backwashing port. This easily leads to material leakage, causing the flushing nozzles to be blocked by the media and severely impacting the entire turbid water system. Therefore, a hot-rolled water treatment filtration device is proposed to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide a hot-rolled water treatment filtration device to address the above-mentioned problems, thereby solving the technical issues of easy material leakage, easy clogging of flushing nozzles, and inconvenient cleaning in traditional hot-rolled water treatment high-speed filtration sections.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A hot-rolled water treatment filtration device includes a housing and a filtration section. The housing has an upper opening and a lower outlet. Several supports are fixedly installed at the bottom of the housing. The filtration section is installed inside the housing. The upper part of the filtration section has an inlet that connects to the upper opening. Several filter media layers are arranged in the middle of the filtration section. A filter residue zone is arranged at the bottom of the filtration section. A flow divider wall is provided between the filter media layers and the filter residue zone. The flow divider wall is densely covered with water outlet holes.

[0007] Furthermore, the lower part of the filter residue area extends below the bottom of the shell, and a slag outlet is provided at the lower end of the filter residue area. The slag outlet is covered with an openable slag discharge cover.

[0008] Furthermore, the filter media layer includes an upper quartz sand layer and a lower pebble layer, with a water-permeable filter plate provided at the lower end of the bottommost filter media layer.

[0009] Furthermore, the quartz sand layer has a particle size of 2.3-2.7 mm, and the pebble layer has a particle size of 4-8 mm.

[0010] Furthermore, the inlet of the filter section is fitted with a removable buffer grid plate.

[0011] Furthermore, a water guide tube is provided on the upper part of the buffer grid plate, and the water guide tube extends out from the upper opening.

[0012] Furthermore, a filter wall is provided between the inner wall of the housing and the outer wall of the filter section, the filter wall is located below the diversion wall, and the filter wall is densely provided with water passage holes.

[0013] Furthermore, the flow divider wall is inverted conical in shape.

[0014] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0015] 1. In use, when turbid water enters the inlet, the buffer grid slows down the water flow. The slowed water then enters the pebble and quartz sand layers of the filter section for filtration. When passing through the diversion wall, the diversion wall blocks the pebbles or quartz sand that have been carried away by water or air pressure, and the pebbles or quartz sand fall into the filter residue area by gravity. The filtered water then passes through the filter wall to the outlet, where impurities are further filtered out. Based on the above, this invention achieves the goal of preventing material leakage and facilitating filtration. It solves the technical problem of easy material leakage, which can clog the flushing nozzles and seriously affect the entire turbid water system.

[0016] 2. This utility model is equipped with a slag discharge cover. When cleaning, you only need to open the slag discharge cover at the slag outlet to clean the impurities settled in the filter cake area. By removing the detachable buffer grid plate and water guide tube, the filter media layer can be easily rinsed. The operation is simple and convenient. Attached Figure Description

[0017] Figure 1 This is a side view of the present invention.

[0018] Figure 2 This is a diagram of the internal structure of the present invention;

[0019] In the attached diagram, 1-shell, 2-filter section, 3-filter wall, 11-upper opening, 12-outlet, 13-support, 14-, 15-, 21-inlet, 22-filter media layer, 23-filter residue area, 24-diverting wall, 25-outlet hole, 26-sludge discharge cover, 27-filter media plate, 28-buffer grid plate, 29-water guide cylinder. Detailed Implementation

[0020] The specific implementation of the utility model will be further described below with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be understood that the terms "center", "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] Please see Figure 1 and Figure 2A hot-rolled water treatment filtration device includes a housing and a filtration section. The housing has an upper opening and a lower outlet. Several supports are fixedly installed at the bottom of the housing. The filtration section is installed inside the housing, with an upper inlet that connects to the upper opening. Several filter media layers are arranged in the middle of the filtration section. A filter residue zone is arranged at the bottom of the filtration section. A flow divider wall is provided between the filter media layers and the filter residue zone, and the flow divider wall is densely covered with water outlet holes. Specifically, the flow divider wall is inverted conical in shape, which facilitates the separation of water and impurities.

[0025] In this embodiment, the lower part of the filter cake zone extends below the bottom of the shell, and a slag outlet is provided at the lower end of the filter cake zone. The slag outlet is covered with an openable slag discharge cover. Specifically, a through hole is provided at the bottom of the shell, and the filter cake zone passes through the through hole and is sealed to the through hole by welding or other means.

[0026] In this embodiment, the filter media layer includes an upper quartz sand layer and a lower pebble layer, with a water-permeable filter plate disposed at the lower end of the bottommost filter media layer. The quartz sand layer has a particle size of 2.3-2.7 mm, and the pebble layer has a particle size of 4-8 mm.

[0027] In this embodiment, a detachable buffer grid plate is fitted into the water inlet of the filter section. A water guide tube is provided on the upper part of the buffer grid plate, extending through the upper opening. The water guide tube reduces splashing of turbid water, and the buffer grid plate reduces the direct impact of turbid water on the filter layer.

[0028] In this embodiment, a filter wall is provided between the inner wall of the housing and the outer wall of the filter section. The filter wall is located below the diversion wall, and the filter wall is densely covered with water passage holes. The filter wall enables secondary filtration of turbid water.

[0029] The specific operating principle is as follows:

[0030] 1. After the turbid water enters the inlet, the buffer grid plate slows down the water flow. The slowed water then enters the pebble layer and quartz sand layer of the filter section for filtration.

[0031] 2. When the turbid water passes through the diversion wall, the diversion wall will block the pebbles or quartz sand that will be carried away by water pressure or air pressure, and the pebbles or quartz sand will fall into the filter cake area by gravity. The filtered water flows through the filter wall to the outlet, where impurities are further filtered out.

[0032] 3. During cleaning, simply open the slag discharge cover at the slag outlet to remove the sediment in the filter cake area; when the filter media layer needs cleaning, remove the buffer grid plate and water guide cylinder, and rinse the filter media layer with high-pressure water.

[0033] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A hot roll water treatment filtration device, characterized by: The device includes a housing and a filter section. The housing has an upper opening and a lower outlet. Several supports are fixedly installed at the bottom of the housing. The filter section is installed inside the housing. The filter section has an upper inlet that connects to the upper opening. Several filter media layers are arranged in the middle of the filter section. A filter cake zone is arranged at the bottom of the filter section. A flow divider wall is provided between the filter media layers and the filter cake zone. The flow divider wall is densely covered with water outlet holes.

2. A hot rolling water treatment filtration device according to claim 1, characterized in that: The lower part of the filter residue area extends below the bottom of the shell, and a slag outlet is provided at the lower end of the filter residue area. The slag outlet is covered with an openable slag discharge cover.

3. A hot rolling water treatment filter device according to claim 1, characterized in that: The filter media layer includes an upper quartz sand layer and a lower pebble layer, with a water-permeable filter plate at the bottom of the lowest filter media layer.

4. A hot rolling water treatment filter device according to claim 3, characterized in that: The quartz sand layer has a particle size of 2.3-2.7 mm, and the pebble layer has a particle size of 4-8 mm.

5. A hot-rolled water treatment filtration device according to claim 1, characterized in that: The inlet of the filter section is fitted with a removable buffer grid plate.

6. A hot-rolled water treatment filtration device according to claim 5, characterized in that: A water guide tube is provided on the upper part of the buffer grid plate, and the water guide tube extends out from the upper opening.

7. A hot-rolled water treatment filtration device according to claim 1, characterized in that: A filter wall is provided between the inner wall of the housing and the outer wall of the filter section. The filter wall is located below the diversion wall and has numerous water passage holes.

8. A hot-rolled water treatment filtration device according to claim 1, characterized in that: The flow divider wall is inverted conical in shape.

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