Cooling water treatment device for slab crystallizer

Abstract

The utility model discloses a slab crystallizer cooling water treatment device which comprises a rubber flexible connecting pipe, filtering structures and connecting structures, the connecting structures are installed on the two sides of the rubber flexible connecting pipe, the filtering structures are installed on the rubber flexible connecting pipe and the connecting structures, and the filtering structures are installed on the rubber flexible connecting pipe and the connecting structures. The cooling water treatment device for the slab crystallizer relates to the technical field of crystallizer filtration, is ingenious in design and integrates multiple advantages; firstly, the connection structure adopts the combination of the metal fixing gasket, the flange, the fastening screw and the spring gasket, so that the firm connection and the sealing performance between the filtering structure and the rubber flexible connection pipe are ensured; the connection mode is stable and reliable, stress generated by water flow impact or temperature change can be effectively absorbed, and long-term stability and sealing performance of the filtering structure are kept. And secondly, the design of the filtering structure is also great ingenuity.

Description

Technical Field

[0001] This utility model relates to the field of crystallizer filtration technology, specifically to a cooling water treatment device for a slab crystallizer. Background Technology

[0002] As a core component of the continuous casting machine, the metallurgical slab crystallizer bears the crucial responsibility of cooling the metal and shaping the slab shell. In this process, molten steel is injected and comes into direct contact with water on the cooling copper plate, achieving efficient cooling and thus shaping a slab containing a liquid core. Subsequently, under the traction of the straightening machine, the slab detaches from the copper plate and enters the secondary cooling zone, where nozzles further cool it.

[0003] However, the water quality used in the initial cooling zone is often unsatisfactory, frequently containing impurities such as iron oxide scale detached from the inner walls of the pipes and filter media residue. These impurities frequently cause blockages in the water gaps and nozzles inside the crystallizer, leading to defects such as surface cracks and bulging in the cast billets. Such malfunctions not only force the production line to shut down for maintenance, severely impacting production efficiency, but also significantly increase maintenance costs and the workload of workers. In light of this, in-depth research into the above problems led to this case study. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a slab crystallizer cooling water treatment device, comprising: a rubber flexible connecting pipe, a filter structure, and a connecting structure, wherein the connecting structure is installed on both sides of the rubber flexible connecting pipe, and the filter structure is installed on the rubber flexible connecting pipe and the connecting structure, wherein the filter structure includes: a pair of circular metal baffles, a pair of circular limiting pipes, a pair of filter screens, a pair of filter inner blocks, and a pair of filter screen threads;

[0005] A pair of circular limiting tubes are respectively heat-fused to a pair of circular metal baffles, a pair of filter screens are respectively installed between a pair of circular metal baffles, and threads are respectively opened on the inner side of the pair of circular limiting tubes. Threads of a pair of filter screens are respectively opened on the outer side of a pair of filter inner blocks, and a pair of filter inner blocks are respectively movably inserted into the inner side of a pair of threads through the filter screen threads.

[0006] Preferably, the connection structure includes: a pair of metal fixing washers, a pair of flanges, four pairs of fastening screws, and four pairs of spring washers;

[0007] A pair of circular metal baffles are respectively fitted onto a pair of metal fixing gaskets, a pair of flanges are respectively installed on a pair of circular metal baffles, four pairs of fastening screws are respectively inserted into a pair of metal fixing gaskets, a pair of flanges and a pair of circular metal baffles, and four pairs of spring washers are respectively fitted onto four pairs of fastening screws.

[0008] Preferably, a rubber expansion joint is provided on the outer side of the pair of filter inner blocks.

[0009] Preferably, the filter mesh size is 16 mesh.

[0010] Preferably, a plurality of filter holes are provided on a pair of filter inner blocks.

[0011] Preferably, the inner sides of the pair of filter blocks are provided with filter cotton and filter membrane.

[0012] Beneficial effects

[0013] This utility model provides a cooling water treatment device for a slab crystallizer. It offers the following advantages: This slab crystallizer cooling water treatment device is ingeniously designed, integrating multiple advantages. First, its connection structure uses a combination of metal fixing gaskets, flanges, fastening screws, and spring washers, ensuring a firm connection and seal between the filter structure and the rubber flexible connecting pipe. This connection method is not only stable and reliable but also effectively absorbs stress caused by water flow impact or temperature changes, maintaining the long-term stability and sealing of the filter structure. Second, the design of the filter structure is also highly ingenious; the circular metal baffle and circular limiting tube form a stable and sealed filter chamber, providing a clear filtration path for the water flow. The filter screen, filter inner block, and filter... The combined use of wire mesh achieves multi-stage filtration, effectively removing various impurities and particles from the water. In particular, the filter holes on the inner filter block, along with the filter cotton and membrane on the inner side, further enhance the filtration effect, ensuring the cleanliness of the water entering the crystallizer. Furthermore, the device considers convenience and durability in practical use; the rubber expansion joint enhances the stress absorption capacity of the filter structure, extending its service life. Simultaneously, the selection of a 16-mesh filter screen ensures filtration efficiency while avoiding clogging problems caused by excessively small mesh sizes. These optimized designs make this filtration device perform exceptionally well in filtering the inlet water of the slab continuous casting machine crystallizer, providing a strong guarantee for the smooth operation of the continuous casting process. Attached Figure Description

[0014] Figure 1 This is a front sectional view of a slab crystallizer cooling water treatment device according to the present invention.

[0015] Figure 2 This is a three-dimensional cross-sectional schematic diagram of a slab crystallizer cooling water treatment device according to the present invention.

[0016] In the diagram: 1. Rubber flexible connector tube; 2. Circular metal baffle; 3. Circular limiting tube; 4. Filter screen; 5. Filter inner block; 6. Filter screen thread; 7. Metal fixing gasket; 8. Flange; 9. Fastening screw; 10. Spring washer. Detailed Implementation

[0017] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example

[0019] like Figure 1-2 As shown, the connecting structure is installed on both sides of the rubber flexible connecting tube 1, and the filtering structure is installed on the rubber flexible connecting tube 1 and the connecting structure. The filtering structure includes: a pair of circular metal baffles 2, a pair of circular limiting tubes 3, a pair of filter screens 4, a pair of filter inner blocks 5, and a pair of filter screen 4 threads.

[0020] Specifically, a pair of circular limiting tubes 3 are respectively heat-fused onto a pair of circular metal baffles 2, a pair of filter screens 4 are respectively installed between a pair of circular metal baffles 2, and threads are respectively opened on the inner side of the pair of circular limiting tubes 3. The threads of the pair of filter screens 4 are respectively opened on the outer side of a pair of filter inner blocks 5, and the pair of filter inner blocks 5 are respectively movably inserted into the inner side of the pair of threads through the threads of the filter screens 4.

[0021] It should be noted that, in the above process, water is first introduced into the filtration device through the rubber flexible connecting tube 1. The rubber flexible connecting tube 1 has good flexibility and sealing properties, which can ensure smooth water flow and prevent leakage due to external vibration or pressure changes. The connecting structure limits and fixes the rubber flexible connecting tube 1, while also limiting the filtration structure. The water flows into the filtration area composed of the annular metal baffle 2 and the annular limiting tube 3. The annular limiting tube 3 is heat-fused onto the annular metal baffle 2, forming a stable and sealed filter chamber. Water flows through the filter screen 4 installed between the annular metal baffles 2 for initial filtration, removing larger impurities and particles. Next, the water flows into the filter inner blocks 5, which are movably inserted into the threaded side of the annular limiting tube 3 via the filter screen 4. The filter inner blocks 5 have filter holes and are lined with filter cotton and a filter membrane to further remove fine impurities and particles, ensuring water cleanliness. Through the combined use of the filter screen 4, the filter holes on the filter inner blocks 5, and the filter cotton and membrane, multi-stage filtration is achieved, removing various impurities and particles from the water and ensuring the cleanliness of the water entering the crystallizer. The use of filter cotton and the filter membrane, especially their ability to intercept fine impurities, makes the filtered water purer, meeting the high water quality requirements of the continuous casting process. Due to the multi-stage and fine filtration design, the device has very high filtration efficiency, quickly removing impurities from the water and ensuring the smooth operation of the continuous casting process.

[0022] like Figure 1-2 As shown, the connection structure includes: a pair of metal fixing washers 7, a pair of flanges 8, four pairs of fastening screws 9, and four pairs of spring washers;

[0023] Specifically, a pair of circular metal baffles 2 are respectively fitted onto a pair of metal fixing gaskets 7, a pair of flanges 8 are respectively installed on a pair of circular metal baffles 2, four pairs of fastening screws 9 are respectively inserted into a pair of metal fixing gaskets 7, a pair of flanges 8 and a pair of circular metal baffles 2, and four pairs of spring washers are respectively fitted onto four pairs of fastening screws 9;

[0024] It should be noted that, as described above, the connection structure securely fixes the filter structure to the rubber flexible connecting tube 1 using metal fixing gaskets 7, flanges 8, fastening screws 9, and spring washers. The metal fixing gaskets 7 and flanges 8 provide stable support, while the fastening screws 9 and spring washers ensure the tightness and sealing of the connection. The rubber expansion joint, located on the outside of the filter inner block 5, absorbs stress caused by water flow impact or temperature changes, maintaining the stability and sealing of the filter structure. The combined use of metal fixing gaskets 7, flanges 8, fastening screws 9, and spring washers achieves a stable connection between the filter structure and the rubber flexible connecting tube 1. This connection method is not only strong and reliable but also ensures a tight and sealed connection. The use of the rubber expansion joint allows the filter structure to absorb stress caused by water flow impact or temperature changes, preventing loosening or leakage due to stress concentration.

[0025] As a preferred embodiment, furthermore, rubber expansion joints are provided on the outer sides of the pair of filter inner blocks 5.

[0026] As a preferred embodiment, the filter screen has 4 meshes with a mesh size of 16.

[0027] As a preferred embodiment, furthermore, a plurality of filter holes are provided on a pair of filter inner blocks 5.

[0028] As a preferred embodiment, furthermore, filter cotton and filter membrane are provided on the inner side of the pair of filter inner blocks 5.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling water treatment device for a slab crystallizer, comprising: A rubber flexible connector tube, a filter structure, and a connecting structure are provided. The connecting structure is installed on both sides of the rubber flexible connector tube, and the filter structure is installed on the rubber flexible connector tube and the connecting structure. The filter structure comprises: a pair of circular metal baffles, a pair of circular limiting tubes, a pair of filter screens, a pair of filter inner blocks, and a pair of filter screen threads. A pair of circular limiting tubes are respectively heat-fused to a pair of circular metal baffles, a pair of filter screens are respectively installed between a pair of circular metal baffles, and threads are respectively opened on the inner side of the pair of circular limiting tubes. Threads of a pair of filter screens are respectively opened on the outer side of a pair of filter inner blocks, and a pair of filter inner blocks are respectively movably inserted into the inner side of a pair of threads through the filter screen threads.

2. The slab crystallizer cooling water treatment device according to claim 1, characterized in that, The connection structure includes: a pair of metal fixing washers, a pair of flanges, four pairs of fastening screws, and four pairs of spring washers; A pair of circular metal baffles are respectively fitted onto a pair of metal fixing gaskets, a pair of flanges are respectively installed on a pair of circular metal baffles, four pairs of fastening screws are respectively inserted into a pair of metal fixing gaskets, a pair of flanges and a pair of circular metal baffles, and four pairs of spring washers are respectively fitted onto four pairs of fastening screws.

3. The slab crystallizer cooling water treatment device according to claim 2, characterized in that, A rubber expansion joint is provided on the outer side of the pair of filter inner blocks.

4. The slab crystallizer cooling water treatment device according to claim 3, characterized in that, The filter mesh size is 16 mesh.

5. The slab crystallizer cooling water treatment device according to claim 4, characterized in that, A plurality of filter holes are provided on the pair of filter inner blocks.

6. The slab crystallizer cooling water treatment device according to claim 5, characterized in that, The inner sides of the pair of filter blocks are provided with filter cotton and filter membrane.

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