Steelmaking continuous casting cooling water filtering device

Abstract

The utility model relates to water filtering equipment in a continuous casting area of a steel plant, in particular to a steelmaking continuous casting cooling water filtering device. The problem that impurities, incrustation, dregs and oil sludge inside cooling water block a filter in the process that the cooling water passes through a water path is solved, and filtered water cannot block a nozzle. Comprising a filter shell, and the interior of the filter shell is sequentially divided into a driving bin, a water inlet bin, a clean water bin and a sewage bin. At least six cylindrical filtering spaces are formed in the water purifying bin, and the top of each filtering space penetrates through the water purifying bin in the length direction. Each filtering space is defined by a detachable filtering net; a brush rod is arranged in each filtering space, a brush is arranged on a rod body of each brush rod, and the top of each brush rod is connected with a driving device; and the bottom of each filtering space is communicated with the sewage bin through a channel opening. A sewage outlet is formed in the bottom of the sewage bin; a water inlet is formed in the side wall of the water inlet bin to introduce to-be-treated cooling water.

Description

Technical Field

[0001] The utility model relates to water filtering equipment in a continuous casting area of ​​a steelmaking plant, in particular to a cooling water filtering device for steelmaking continuous casting. Background Art

[0002] In the steelmaking continuous casting area, billets are cast and formed during the production process, which requires a large amount of cooling water to be sprayed through each section of the nozzle for cooling. The cooling water used in this process is generally sent in through the pump room. The water in the pump room contains impurities, scale, slag, and sludge inside the pipes. During the water passage, the nozzles will be blocked by various impurities, making it impossible for the nozzles to spray water normally, resulting in the billets not being cooled during the production process and causing serious quality problems. In addition, due to the large number of nozzles, the probability of blockage is high, and the blockage of the nozzles seriously affects the quality and labor burden. Personnel need to clean them one by one after the shutdown, and the cleaning environment is relatively bad, and a lot of downtime is required.

[0003] The existing steelmaking continuous casting cooling water filtration device has a serious lack of filtration effect and filtration capacity, and is prone to clogging. The filtration device has a high cost, and the effect is not up to standard. There are still too many nozzle clogging after use. The nozzle clogging not only affects the internal and external quality of the billet, but also leads to the direct scrapping of the scrap billet in severe cases, and even causes production accidents such as steel leakage due to insufficient cooling of the billet. The continuation of internal quality problems will eventually lead to quality problems in the rolled products, which must be scrapped. Summary of the invention

[0004] The utility model aims to provide a cooling water filter for steelmaking continuous casting in view of the defects of the prior art. It solves the problem of impurities, scale, slag and sludge in the cooling water blocking the filter during the water passage, so that the filtered water will not block the nozzle, while saving labor costs and extending the service life of the equipment.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme, including a filter housing, wherein the filter housing is divided into a drive compartment, a water inlet compartment, a clean water compartment and a sewage compartment from top to bottom, and each compartment is separated and sealed by a partition.

[0006] At least six cylindrical filtering spaces are provided inside the water purification tank, and the top of each filtering space passes through the water purification tank along the length direction.

[0007] Each filter space is surrounded by a detachable filter screen, and the filter screen is placed in a filter screen mounting frame; each filter space is equipped with a brush rod, the brush rod body is provided with a brush, and the top of the brush rod is connected to a driving device to drive the brush to rotate and clean the filter screen; the bottom of each filter space is connected to the sewage tank through a channel opening (opened when discharging sewage and closed when working), and a switch valve is provided at the channel opening.

[0008] The bottom of the sewage tank is provided with a sewage outlet, the bottom side wall of the clean water tank is provided with a filtered water outlet, and the side wall of the water inlet tank is provided with a water inlet to introduce cooling water to be treated. The driving device includes a motor located at the top of the filter housing, and a main driving gear driven by the motor and a driven gear meshed with the main driving gear located in the driving tank, and the driven gear is connected to the brush rod through a transmission component to drive the brush to rotate.

[0009] Furthermore, the motor drives the main drive gear to rotate through the motor output shaft, and the main drive gear is meshed with six driven gears. The transmission components include a transmission sleeve and a transmission shaft; each driven gear is connected to the corresponding brush rod through its own transmission sleeve and transmission shaft to realize the rotation of the brush.

[0010] Furthermore, a mounting base is provided on the partition in the driving bin for supporting the transmission components; a transmission sleeve is fixed in an opening of the mounting base, a transmission shaft passes through the transmission sleeve, and is rotationally or slidably connected to the transmission sleeve; the top end of the transmission shaft is connected to the corresponding driven gear, and the transmission shaft passes through the bottom end of the transmission sleeve and is connected to the brush rod.

[0011] Furthermore, the sewage outlet is provided with a valve 1 for controlling sewage discharge.

[0012] Furthermore, the filtered water outlet is provided with a second valve for controlling the outflow of filtered water.

[0013] Furthermore, the water inlet is provided with a valve three for controlling water inlet.

[0014] Furthermore, the filter housing is made of corrosion-resistant material.

[0015] Compared with the prior art, the utility model has beneficial effects.

[0016] The utility model is provided with a brush device inside the filter device, which can clean the filter screen in real time during the filtering process to prevent the filter screen from being blocked, and at the same time can promptly clean up the impurities attached to the filter screen, which is helpful for the water permeability of the filter screen.

[0017] The utility model filtering device is provided with a sewage outlet at the bottom, which can timely precipitate and discharge impurities in the filtering.

[0018] The cooling water filtering device of the utility model has the advantages of simple and exquisite design, convenient use and replacement, and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. The protection scope of the utility model is not limited to the following descriptions.

[0020] Figure 1 It is a front view of a cooling water filtration device for steelmaking and continuous casting.

[0021] Figure 2 It is a three-dimensional vision system for the drive chamber of a steelmaking continuous casting cooling water filtration device. Figure 1 .

[0022] Figure 3 It is a three-dimensional vision system for the drive chamber of a steelmaking continuous casting cooling water filtration device. Figure 2 .

[0023] Figure 4 yes Figure 2 Top view of the .

[0024] In the figure, 1 is the motor, 2 is the motor output shaft, 3 is the filter housing, 4 is the water inlet, 5 is the main driving gear, 6 is the driven gear, 7 is the driving bin, 8 is the mounting base, 9 is the transmission sleeve, 10 is the transmission shaft, 11 is the brush rod, 12 is the filter screen, 13 is the filter screen mounting frame, 14 is the brush, 15 is the partition, 16 is the channel opening, 17 is the sewage bin, 18 is the sewage outlet, 19 is the filtered water outlet, 20 is the brush rod mounting hole, 21 is the water inlet bin, and 22 is the clean water bin. DETAILED DESCRIPTION

[0025] In order to better understand the technical solution of the present utility model, a specific implementation plan is provided as follows; and the following scheme is only for illustration.

[0026] like Figure 1-4 As shown, the utility model steelmaking continuous casting cooling water filtering device includes a filter housing 3 of the filtering device which is divided into four chambers from top to bottom, which are the driving chamber 7 for placing the driving device, the water inlet chamber 21 for water inlet, the clean water chamber 22 for setting the filtering assembly, and the sewage chamber 17 for storing sewage; the driving chamber 7 and the water inlet chamber 21, the water inlet chamber 21 and the clean water chamber 22, and the clean water chamber 22 and the sewage chamber 17 are separated and sealed by partitions 15. Among them, the clean water chamber 22 is provided with 6 cylindrical filtering spaces with the top running through the length direction thereof for accommodating the filtering assembly.

[0027] That is, the top of the cylindrical filter space is open, and after the water enters the water inlet tank 21, it enters the filter space. Each filter space is separated from the clean water tank 22 by a filter mounting frame 13 with a built-in filter 12, that is, a filter 12 is inserted into the filter mounting frame 13. After the water inlet tank 21 enters the filter space, it is filtered by the filter 12 and enters the clean water tank 22. At this point, the cooling water is filtered and becomes "clean water" and enters the clean water tank 22.

[0028] Each filter space is provided with a brush, and the top of the brush rod 11 of the brush passes through the water inlet bin 21 and is connected to the driving device of the driving bin 7; the driving device is used to drive the brush rod 11 to rotate. The brush contacts the corresponding filter screen 12, so as to brush off the dirt on the filter screen 12. The impurities attached to the filter screen during filtration are cleaned by the brush and fall directly, and fall into the sewage bin 17 through the channel opening 16.

[0029] Embodiment 1, the driving device comprises a main driving gear 5, and 6 driven gears 6 meshing and connected with the main driving gear 5. The main driving gear 5 is driven to rotate by the motor 1, driving the main driving gear 5 to rotate, and then driving the driven gears 6 meshing with it to rotate. A mounting base plate 8 is arranged above the partition 15 of the driving bin 7, and each driven gear 6 is connected to a brush rod 11 through its own transmission component; the transmission component comprises a transmission sleeve 9 installed in the opening of the mounting base plate 8, and a transmission shaft is rotatably arranged in the transmission sleeve 9, and the top end of the transmission shaft passes through the transmission sleeve 9 and is connected to the corresponding driven gear 6, and the bottom end of the transmission shaft is connected to the top of the corresponding brush rod 11. A brush rod mounting hole 20 is arranged at the bottom end of the transmission shaft, which is used to insert the brush rod 11 and fix it with a top screw. Specifically, the motor drives the main driving gear 5, and the main driving gear 5 meshes with the driven gear 6, driving the 6 driven gears 6 to rotate. The driven gear 6 is connected to the transmission shaft, and then the driven gear 6 drives the transmission shaft to rotate.

[0030] Embodiment 2: Each filter space is provided with a channel opening 16 for sewage discharge connected to the sewage tank 17 at the bottom. The channel opening 16 is provided with a valve for periodically discharging sewage when necessary, and the valve is closed when sewage is not discharged. A sewage outlet 18 connected to the sewage tank 17 is provided at the bottom. A filtered water outlet 19 connected to the clean water tank 22 is provided at the bottom. A water inlet for water intake is provided on the side wall of the water inlet tank 21.

[0031] Embodiment 3: The filter screen mounting frame 13 only needs to be able to fix the filter screen, and its design is not limited to a specific form. A possible technical solution is provided below:

[0032] A cylindrical main frame with a circular cross section is used, which is made of stainless steel. The main frame is closed at the bottom and open at the top, which is convenient for loading and unloading the filter 12. The head and tail ends of the main frame are fixedly connected to the corresponding partitions 15. An internal guide groove is set in the filter mounting frame 13, and the width is slightly larger than the edge of the filter to ensure that the filter can be firmly embedded in the groove while allowing a certain amount of activity space for sliding. At the same time, in order to facilitate operations such as lifting and replacing the filter, a flange is set on the top of the filter. When the filter slides into the frame along the guide groove, the flange hangs outside the end of the frame, which is convenient for manual lifting.

[0033] Another possible implementation of the filter mounting frame 13 is to use a filter housing with an open top for mounting the filter 12 , and at the same time, small holes are evenly distributed on the filter housing to facilitate the passage of filtered water.

[0034] Embodiment 4, working process:

[0035] The cooling water to be treated enters the water inlet tank 21 of the filtering device through the water inlet.

[0036] The cooling water enters the cylindrical filter space (six cylindrical filter spaces are evenly distributed), is filtered through the filter screen 12 , and the filtered water enters the clean water tank 22 , and then flows out through the filtered water outlet 19 .

[0037] When the cooling water passes through the filter 12, the impurities in the water are blocked by the filter and retained on the inner wall of the filter. At this time, the motor is started, and the motor drives the brush rod 11 to rotate through the gear set (the main driving gear 5 drives the driven gear 6). The brush arranged on the brush rod 11 is arranged on the inner side of the filter. The brush can brush the inner wall of the filter during the rotation process to clean the impurities attached to the inner wall of the filter. After being cleaned, the impurities sink through the channel opening 16 into the sewage tank 17 and are discharged through the sewage outlet 18 at regular intervals.

[0038] The process of brush cleaning the inner wall of the filter can be started at a fixed time, which can effectively prevent the filter from being blocked.

[0039] When the filter needs to be replaced, the drive compartment 7 is opened, the filter in the filter mounting frame 13 is manually taken out, and then a new filter is put in.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Therefore, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope defined by the claims of the present invention.

Claims

1. A steelmaking continuous casting cooling water filtration device, characterized in that: The filter housing (3) comprises a drive chamber (7), a water inlet chamber (21), a clean water chamber (22) and a sewage chamber (17) in sequence from top to bottom, and each chamber is separated and sealed by a partition (15); At least six cylindrical filter spaces are provided inside the clean water bin (22), and the top of each filter space passes through the clean water bin along the length direction, and each filter space is surrounded by a detachable filter screen (12), and the filter screen (12) is placed in a filter screen mounting frame (13); Each filter space is provided with a brush rod (11), the body of the brush rod (11) is provided with a brush (14), and the top of the brush rod (11) is connected to a driving device to drive the brush (14) to rotate and clean the filter screen (12); The bottom of each filter space is connected to the sewage tank (17) through a channel opening (16), and the channel opening (16) is provided with a switch valve; The bottom of the sewage tank (17) is provided with a sewage outlet (18), the bottom side wall of the clean water tank (22) is provided with a filtered water outlet (19), and the side wall of the water inlet tank (21) is provided with a water inlet (4) for introducing cooling water to be treated.

2. The steelmaking continuous casting cooling water filtration device according to claim 1, characterized in that: The driving device comprises a motor (1) located at the top of the filter housing (3), a main driving gear (5) driven by the motor and located in a driving compartment (7), and a driven gear (6) meshing with the main driving gear (5); the driven gear (6) is connected to a brush rod (11) through a transmission component to drive the brush (14) to rotate.

3. The steelmaking continuous casting cooling water filtration device according to claim 2 is characterized in that: The motor (1) drives the main driving gear (5) to rotate via the motor output shaft (2), the main driving gear (5) is meshed with six driven gears (6), and the transmission components include a transmission sleeve (9) and a transmission shaft (10); Each driven gear (6) is connected to a corresponding brush rod (11) through a respective transmission sleeve (9) and a transmission shaft (10) to achieve the rotation of the brush (14).

4. The steelmaking continuous casting cooling water filtration device according to claim 3 is characterized in that: A mounting base plate (8) is arranged on the partition in the driving bin for supporting the transmission components; a transmission shaft sleeve (9) is fixed in an opening of the mounting base plate (8); a transmission shaft (10) passes through the transmission shaft sleeve (9) and is rotationally connected or slidably connected to the transmission shaft sleeve (9); the top end of the transmission shaft (10) is connected to the corresponding driven gear (6), and the bottom end of the transmission shaft (10) passing through the transmission shaft sleeve (9) is connected to the brush rod (11).

5. The steelmaking continuous casting cooling water filtration device according to claim 1, characterized in that: The sewage outlet (18) is provided with a valve 1 for controlling sewage discharge.

6. The steelmaking continuous casting cooling water filtration device according to claim 1, characterized in that: The filtered water outlet (19) is provided with a valve 2 for controlling the outflow of filtered water.

7. The steelmaking continuous casting cooling water filtration device according to claim 1, characterized in that: The water inlet (4) is provided with a valve three for controlling water inlet.

8. The steelmaking continuous casting cooling water filtration device according to claim 1, characterized in that: The filter housing (3) is made of corrosion-resistant material.

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