Hot rolling turbid circulating water treatment device

Abstract

The invention relates to the technical field of water treatment devices, and provides a hot rolling turbid circulating water treatment device, which comprises a filter tank, the two filter screens are both arranged in the filter box, the two filter screens are both located between the two water inlets, and the water outlet is located between the two filter screens; the scraping plate is movably arranged in the filtering box and abuts against the filtering net; the backflushing water inlet tank is movably arranged in the filter tank, located between the two filter screens and communicated with the filter tank, the scraper is located on one side of the backflushing water inlet tank, and the backflushing water inlet tank is used for spraying backflushing high-pressure water to the scraper. According to the technical scheme, the problem that in the prior art, a hot rolling turbid circulating water treatment mode passing through a filter screen in one direction is combined with a scraper, and part of pollutants still penetrate through the filter screen is solved.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment devices, and in particular to a hot rolling turbid ring water treatment device. Background Art

[0002] Hot rolling is an important processing technology in the steel industry. It is to heat the steel billet to a certain temperature, and then deform it by the pressure of the roller to become steel with a certain shape and size, such as steel plate, steel strip, etc. The cooling water generated during the hot rolling process becomes hot rolling turbid water after use. Its main pollutants include iron oxide scale (iron oxide), iron powder, suspended impurities, etc. The water quality characteristics of hot rolling turbid water put forward high requirements for subsequent water treatment devices. If it is not handled properly, it will cause blockage and corrosion of the equipment.

[0003] The current water treatment technologies are mainly divided into: sedimentation method, filtration method and chemical agent treatment method. For the water treatment device of the filtration method, multiple sets of filter screens are usually installed in the filter box, and the hot rolled turbid ring water passes through the filter screen in a single flow direction to intercept pollutants. However, the above water treatment devices have the following problems: When cleaning the filter regularly, in order not to affect the continuous rhythm of production, a reciprocating scraper is usually used. The scraper scrapes the pollutants on the filter into the sludge storage tank of the filter box. The pollutants that enter are finally discharged through the sewage pump. The purpose of discharging the pollutants is to recover the iron oxide and iron powder inside the pollutants. However, the scraper is easy to disturb the pollutants during the movement, and some of the pollutants will float away in the water flow. The fine pollutants inside may also pass through the filter. In the long run, clogging and corrosion of the equipment cannot be avoided. Summary of the invention

[0004] The present invention proposes a hot rolling turbid water treatment device, which solves the problem that the hot rolling turbid water treatment method of the related art that passes through the filter in one direction is combined with a scraper, but still causes some pollutants to pass through the filter.

[0005] The technical solution of the present invention is as follows: A hot rolling turbid water treatment device, comprising: A filter box, the filter box having a water outlet and two water inlets; Two filter screens, both of which are arranged in the filter box, both of which are located between the two water inlets, and the water outlet is located between the two filter screens; A scraper, the scraper is movably disposed in the filter box and abuts against the filter screen; A recoil water inlet tank is movably arranged in the filter box, located between the two filter screens, and connected to the filter box. The scraper is located on one side of the recoil water inlet tank, and the recoil water inlet tank is used to spray recoil high-pressure water to the scraper.

[0006] As a further technical solution, there are two scrapers, each of which is located on the side of the filter away from the backwash water tank, and further includes: An interception plate is arranged on the scraper, and a pollutant interception area is formed between the interception plate and the scraper.

[0007] As a further technical solution, the scraper moves in a vertical direction, the scraper is arranged in a horizontal direction, there are two intercepting plates, the two intercepting plates are respectively inclined on both sides of the scraper, and the two intercepting plates and the scraper form an arrow shape.

[0008] As a further technical solution, the two filters are arranged in the vertical direction, the two sides of the recoil water inlet tank are respectively abutted against the two filters, and the moving direction of the recoil water inlet tank is in the vertical direction. After the recoil water inlet tank moves, it drives the scraper to move.

[0009] As a further technical solution, the recoil water tank includes: A ring frame, the ring frame moves in a vertical direction, both sides of the ring frame are provided with openings one, the two openings one are respectively in contact with the two filter screens, and a backwash water inlet area is formed between the ring frame and the two filter screens; Wherein, the ring frame and the scraper are both made of magnetic material. When the ring frame moves, it drives the scraper to move. The projection of the scraper to the filter is located within the projection of the ring frame to the filter. The two scrapers are respectively located on one side of the two openings.

[0010] As a further technical solution, the filter screen is I-shaped, and the filter screen can be detachably arranged in the filter box. Both ends of the filter screen have slide grooves, and both ends of the scraper have sliding parts. The scraper is moved by the sliding parts and arranged in the slide groove.

[0011] As a further technical solution, the pollutant interception zone has opening 2, and further includes: A plurality of permanent magnet blocks are movably arranged in the pollutant interception zone, and the width of the permanent magnet blocks is greater than the width of the second opening. The permanent magnet blocks are used to absorb iron oxide and iron powder in the pollutant interception zone.

[0012] As a further technical solution, the permanent magnet block is spherical, and further comprises: A plurality of baffles are provided on the end of the scraper and fixedly connected to the interception plate. The pollutant interception zone is formed between two baffles, the interception plate and the scraper. The baffle is used to prevent the permanent magnet block from escaping from the pollutant interception zone.

[0013] As a further technical solution, the filter screen is divided into a filter area and a blocking stop area from top to bottom, the ring frame reciprocates between the filter area and the blocking stop area, and the width of the ring frame is smaller than the width of the blocking stop area.

[0014] As a further technical solution, it also includes: A high-pressure cleaning component is movably arranged on the outer wall of the filter box. After moving, the high-pressure cleaning component approaches or moves away from one of the filter screens. The high-pressure cleaning component is used to clean the filter screen.

[0015] The working principle and beneficial effects of the present invention are: 1. Double filtration advantage: Two sets of filter screens are set up, and the innovative water inlet form on both sides is adopted, so that the outer side of the filter screen is used as the key filtration area, which can efficiently intercept various pollutants in the hot rolling turbid water, change the traditional multi-stage treatment complex water inlet and outlet mode, improve the filtration efficiency, and enhance the removal ability of iron oxide, iron powder and suspended impurities.

[0016] 2. Recoil suppression: The recoil water tank and scraper are both movable, and can continuously spray recoil high-pressure water through the filter to the scraper. When the scraper is cleaning, the high-pressure water reverses the water pressure before and after the filter. Without interrupting the normal filtering process and the continuous operation of the scraper, it strongly blocks the fine pollutants that are dispersed by the disturbance of the scraper from passing through the filter, protecting the subsequent equipment from contamination.

[0017] 3. Anti-blocking and anti-corrosion protection: Through the above mechanism, the filter is always kept in a good and clean state, which greatly reduces the probability of pollutants passing through the filter and accumulating in subsequent equipment, reduces the risk of equipment blockage and corrosion from the root, extends the service life of the equipment, and maintains the stable operation of the production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0019] Figure 1 It is a schematic structural diagram of a hot rolling turbid ring water treatment device in the present invention; Figure 2 It is a partial structural schematic diagram of a hot rolling turbid ring water treatment device in the present invention; Figure 3 This is a diagram showing the coordination of the filter screen and the backwash water tank in the present invention; Figure 4 It is a cross-sectional view of the recoil water tank in the present invention; Figure 5 It is a partial cross-sectional view of the recoil water tank in the present invention; Figure 6 It is a schematic diagram of the ring frame structure in the present invention; Figure 7 For the present invention Figure 4 Enlarged view of part A in the middle; Figure 8 For the present invention Figure 5 Enlarged view of middle part B; Fig. 9 For the present invention Figure 6 Enlarged view of the middle D part; Fig.10 For the present invention Figure 5 Enlarged view of middle C; Fig.11 For the present invention Figure 2 Enlarged view of middle part E.

[0020] In the figure: 1, filter box, 101, water inlet, 102, water outlet, 2, filter screen, 201, chute, 202, filter area, 203, blocking shutdown area, 3, scraper, 301, slide, 4, recoil water inlet tank, 401, ring frame, 402, opening one, 403, recoil water inlet area, 5, interception plate, 6, pollutant interception area, 601, opening two, 7, permanent magnet block, 8, baffle. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0022] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0023] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] Reference Figure 1 to Figure 11 , which is the first embodiment of the present invention, proposes a hot rolling turbid ring water treatment device, including: a filter box 1 has a water outlet 102 and two water inlets 101; two filter screens 2 are arranged in the filter box 1, the two filter screens 2 are located between the two water inlets 101, and the water outlet 102 is located between the two filter screens 2; a scraper 3 is movably arranged in the filter box 1 and abuts against the filter screen 2; a backwash water inlet tank 4 is movably arranged in the filter box 1, located between the two filter screens 2, and connected to the filter box 1, the scraper 3 is located on one side of the backwash water inlet tank 4, and the backwash water inlet tank 4 is used to blow backwash high-pressure water to the scraper 3.

[0026] In this embodiment, two filter screens 2 are provided to change the water inlet and outlet forms of the traditional multi-stage treatment. The two groups of water inlets 101 take in water from both sides of the two groups of filter screens 2, so that the outer side surfaces of the two groups of filter screens 2 serve as filtering surfaces, and pollutants such as oxidized iron scale, iron powder and suspended impurities in the hot-rolled turbid water are intercepted on the outer side surfaces. While the filter screens 2 function, the backwash water tank 4 moving between the two is cooperated to jointly avoid the problems caused by the scraper 3 under traditional continuous operation.

[0027] Specifically, the backwash water inlet tank 4 and the scraper 3 are both movably arranged, so that high-pressure water can be continuously backwashed to the scraper 3 through the filter 2. When the scraper 3 cleans the filter 2, the strong impact force of the high-pressure water is used to make the water pressure on the front and rear sides of the filter 2 at the backwash water inlet tank 4 opposite to the normal filtration water pressure, thereby achieving continuous normal filtration and continuous cleaning of the scraper 3, so that the fine pollutants disturbed by the scraper 3 will not pass through the filter 2 to the subsequent equipment, thereby ensuring the cleaning effect of the filter 2 while further preventing the equipment from being blocked or corroded due to the accumulation of pollutants passing through the filter 2.

[0028] Compared with the traditional structure, the traditional water treatment device usually arranges the water inlet and outlet 102 along a one-way path and sets a multi-stage filter screen 2. The present device innovatively arranges its positional relationship with the water inlet 101 and the water outlet 102, changes the single flow filtration mode of the water flow, and makes the hot-rolled turbid ring water flow to the middle of the two groups of filter screens 2 and be discharged, forming two outer filtration surfaces. The purpose is to better cooperate with the backwashing, inhibit the pollutants from drifting through the filter screen 2, and ensure that the subsequent internal clean environment of the equipment is more durable. Compared with the traditional cleaning method, the frequency of equipment maintenance is greatly reduced. At the same time, in order to further improve the durability, another filter screen 2 can be added at the water outlet 102.

[0029] During the filtering process, the hot-rolled turbid water enters the filter box 1 from the two water inlets 101 respectively, hits the two groups of filter screens 2 from the outside, and is discharged from the water outlet 102 between the two. Larger particles of iron oxide, iron powder lumps and some suspended impurities are intercepted. At the same time, the cleaning process is carried out. The scraper 3 is driven by the driving structure such as the cylinder to move along the arrangement path of the filter screen 2 to scrape off the pollutants on the outer side. At the same time, the recoil water tank 4 is driven by the cylinder and other structures to move, so that the high-pressure water source inside it can always pass through the filter screen 2 to act on the scraper 3.

[0030] As for the specific structure of the recoil water inlet tank 4, it can be a rectangular structure, and the bottom is connected to the external high-pressure water source through a retractable flexible sealing pipe to ensure a stable supply of water during its movement. A plurality of high-pressure nozzles can be evenly distributed on the side close to the filter screen 2, so that the high-pressure water can cover the scraping area of ​​the scraper 3 in a fan-shaped surface, and the box body has built-in liquid level sensors and pressure sensors to monitor the water level and water pressure in real time, and to link the adjustment of the external high-pressure water source pump body to control the water inlet flow and pressure, so as to stably maintain the recoil effect; the moving structure can be realized by roller guides on both sides, which are adapted to the special slideway on the inner wall of the filter box 1, and with the help of a motor-driven chain transmission, precise reciprocating movement along the arrangement path of the filter screen 2 can be achieved, and it can run synchronously with the operating rhythm of the scraper 3, and provide strong recoil support for the cleaning of the scraper 3 at any time.

[0031] Furthermore, there are two scrapers 3 , which are located on the side of the filter screen 2 away from the recoil water tank 4 , and also include: an interception plate 5 arranged on the scraper 3 , and a pollutant interception area 6 is formed between the interception plate 5 and the scraper 3 .

[0032] In this embodiment, after the interception plate 5 is added, it cooperates with the scraper 3 to form a pollutant interception area 6. During the process of the scraper 3 cleaning the filter screen 2, even if some pollutants are separated from the filter screen 2 due to the scraping of the scraper 3, they can be quickly blocked by the interception plate 5 and collected in the interception area, avoiding the unnecessary spread of pollutants, greatly reducing the possibility of pollutants leaking to other areas of the filter box 1 outside the filter screen 2 and passing through the filter screen 2 with the water flow into subsequent equipment. Compared with the traditional scraper 3 structure without the interception plate 5, the pollutant collection rate of one cleaning is greatly improved, reducing the risk of equipment contamination.

[0033] When the scraper 3 moves along the surface of the filter 2 for cleaning, once pollutants such as iron oxide, iron powder, suspended impurities, etc. are scraped up and under the action of the recoil high pressure, the interception plate 5 begins to play a role, timely blocking the forward path of the pollutants, and because the scraper 3 continues to move, the interception plate 5 always follows the synchronous operation, and continuously confines the scattered pollutants generated during the cleaning process in the interception area; specifically, stainless steel can be used to improve corrosion resistance, and the shape can be L-shaped, semicircular, etc., welded to the edge of the scraper 3 as the main blocking surface, and the edges are rounded to prevent sharp corners from hanging on the filter 2 or scratching internal cables and other equipment under the impact of water flow, while reducing water flow resistance, maintaining smooth water flow in the filter box 1, reducing turbulence, and preventing turbulence from interfering with normal filtration and pollutant collection.

[0034] Further, the scraper 3 moves in the vertical direction, the scraper 3 is arranged in the horizontal direction, there are two intercepting plates 5, the two intercepting plates 5 are arranged obliquely on both sides of the scraper 3, and the two intercepting plates 5 and the scraper 3 form an arrow shape.

[0035] In the present embodiment, specifically, the scraper 3 is horizontally arranged and moves in the vertical direction, and is matched with the intercepting plates 5 inclined on both sides to form an arrow-shaped structure. When the scraper 3 cleans the filter screen 2 upward or downward, no matter in which horizontal direction the pollutants drift due to the scraping, the intercepting plates 5 inclined on both sides can quickly guide and gather the pollutants like the two wings of an arrow, greatly reducing the probability of pollutants escaping to other areas of the filter box 1, realizing all-round optimization of pollutant interception, and compared with the ordinary straight plate interception structure, significantly improving the collection efficiency of pollutants in one cleaning operation, ensuring a cleaner internal environment of the filter box 1.

[0036] The two interception plates 5 are made of engineering plastic or stainless steel with good toughness, which has a certain elasticity to buffer impact, and is corrosion-resistant and wear-resistant. They are welded to the edges of the scraper 3 at an angle of 45°-60°, or are integrally formed with the scraper 3 to enhance the structural strength, and form a certain distance from the outer side of the filter screen 2 to avoid the flow direction of the water.

[0037] Furthermore, the two filter screens 2 are arranged in the vertical direction, the two sides of the recoil water inlet tank 4 are respectively in contact with the two filter screens 2, and the recoil water inlet tank 4 moves in the vertical direction. After the recoil water inlet tank 4 moves, it drives the scraper 3 to move.

[0038] In this embodiment, the recoil water inlet tank 4 is closely related to the vertical movement of the scraper 3, achieving precise synchronization of the movements of the two. When the recoil water inlet tank 4 moves in the vertical direction, the scraper 3 is driven to move in coordination with it, ensuring that the high-pressure water injection position corresponds to the scraper 3 cleaning position in real time. In this way, when processing pollutants at different heights of the filter screen 2, high-pressure water can be used to suppress the dispersion of pollutants caused by the scraping of the scraper 3 in the first place, which saves costs compared to the traditional design in which the two are driven independently and prone to time difference in movement.

[0039] The specific driving structure of the two is that the driving wheel and the driven wheel are respectively installed at the corresponding positions of the top and bottom of the filter box 1, and the synchronous belt is wrapped therebetween. The recoil water inlet tank 4 and the scraper 3 are fixed on the synchronous belt through special connecting parts. The driving wheel is driven by a high-precision servo motor. The motor accurately controls the rotation speed and direction according to the preset program or the pollution degree signal of the filter screen 2 fed back by the sensor; alternatively, a hydraulic cylinder is arranged on one side of the filter box 1, and the piston of the hydraulic cylinder is connected to the recoil water inlet tank 4. When the hydraulic oil enters different chambers of the cylinder, the piston will drive the recoil water inlet tank 4 to move up and down. At the same time, a hydraulic push rod is connected to the scraper 3, and the other end of the hydraulic push rod is connected to the moving part of the recoil water inlet tank 4 through a connecting rod. When the recoil water inlet tank 4 moves, the motion is transmitted to the hydraulic push rod through the connecting rod, thereby driving the scraper 3 to move.

[0040] Furthermore, the recoil water inlet tank 4 includes: a ring frame 401 that moves in the vertical direction, and both sides of the ring frame 401 have openings 402, the two openings 402 are respectively abutted against the two filter screens 2, and a recoil water inlet area 403 is formed between the ring frame 401 and the two filter screens 2; wherein, the ring frame 401 and the scraper 3 are both made of magnetic materials, and the movement of the ring frame 401 drives the scraper 3 to move, and the projection of the scraper 3 onto the filter screen 2 is located within the projection of the ring frame 401 onto the filter screen 2, and the two scrapers 3 are respectively located on one side of the two openings 402.

[0041] In this embodiment, the recoil water inlet tank 4 includes a square ring frame 401, which forms a recoil water inlet area 403 with the filter screen 2. The opening 402 is tightly against the filter screen 2, and the projection area of ​​the scraper 3 is located within the projection area of ​​the ring frame 401, so that high-pressure water can accurately rush to the surface of the filter screen 2 after entering from the ring frame 401, without lateral leakage, and maximizes the use of water flow energy to impact the scraper 3, saves components such as guide rails, and reduces some costs.

[0042] The ring frame 401 and the scraper 3 are both made of magnetic materials, which realizes a simple and efficient magnetic attraction linkage between the two without the need for a complex mechanical connection structure. This not only avoids the risk of failure due to wear and aging of mechanical parts, but also reduces the number of internal parts of the equipment, simplifies the maintenance process, and reduces maintenance costs.

[0043] The specific driving process is that when the equipment starts the recoil cleaning program, the driving device (such as a motor with a screw nut mechanism or a chain transmission component, etc.) drives the ring frame 401 to move in the vertical direction. Since the two ends of the ring frame 401 and the scraper 3 as a whole have mutual attraction magnetism, the moment the ring frame 401 starts to rise or fall, the scraper 3 adjacent to the opening 402 on both sides thereof will immediately respond under the magnetic traction, and move with the ring frame 401 at the same speed and in the same direction, and will not be affected even if there is a filter screen 2 between the two.

[0044] Furthermore, the filter screen 2 is I-shaped and can be detachably arranged in the filter box 1 . Both ends of the filter screen 2 have slide grooves 201 . Both ends of the scraper 3 have slide parts 301 . The scraper 3 is moved and arranged in the slide groove 201 through the slide parts 301 .

[0045] In this embodiment, the I-shaped filter screen 2 is designed with a detachable feature, which greatly facilitates equipment maintenance. When the filter screen 2 is seriously blocked, damaged, or the filtering performance is greatly reduced due to long-term use, the old screen can be pulled out of the filter box 1 and replaced with a simple operation.

[0046] At the same time, a slide groove 201 and a welded slide 301 are provided at the end of the filter screen 2 and the corresponding position of the scraper 3. The matching structure of the slide 301 at both ends of the scraper 3 and the slide groove 201 at both ends of the filter screen 2 provides precise guidance for the scraper 3 to move in the vertical direction, so as to adapt to the magnetic drive form and make the driving action smoother.

[0047] Furthermore, the pollutant interception zone 6 has an opening 2 601 , and also includes: a plurality of permanent magnet blocks 7 are movably arranged in the pollutant interception zone 6 , and the width of the permanent magnet blocks 7 is greater than the width of the opening 2 601 , and the permanent magnet blocks 7 are used to absorb iron oxide and iron powder in the pollutant interception zone 6 .

[0048] In this embodiment, the permanent magnet block 7 is movably placed in the pollutant interception zone 6, and uses its strong magnetic property to produce a strong adsorption effect on the iron oxide scale and iron powder rich in the hot rolling turbid water, which can effectively separate the iron oxide scale (iron oxide), iron powder and suspended impurities, reduce the pressure of subsequent screening work, and have a certain screening function. The movable setting is also to maximize the use of magnetic attraction and more comprehensively adsorb iron oxide scale (iron oxide) and iron powder; further, since the width of the permanent magnet block 7 is greater than the width of the opening 2 602, it is cleverly fixed in the interception zone without hindering the normal operation of the scraper 3.

[0049] For movable installation, dovetail groove guide rails can be longitudinally opened at the corresponding positions on both side walls of the pollutant interception area 6. The length of the guide rails is slightly shorter than the height of the interception area, which is convenient for the installation and later fine-tuning of the permanent magnet block 7. Special dovetail sliders are embedded at both ends of the permanent magnet block 7. The sliders fit tightly with the dovetail grooves, allowing the permanent magnet block 7 to have a 1-2cm movable margin in the vertical direction, which can not only adapt to the scraping impact of the scraper 3, but also flexibly adjust the position when the water flow fluctuates to maintain the magnetic attraction stability.

[0050] Furthermore, the permanent magnet block 7 is spherical and also includes: a baffle 8 is arranged on the end of the scraper 3 and fixedly connected to the interception plate 5, and a pollutant interception area 6 is formed between the two baffles 8, the interception plate 5 and the scraper 3, and the baffle 8 is used to prevent the permanent magnet block 7 from escaping from the pollutant interception area 6.

[0051] In this embodiment, the permanent magnet block 7 is designed to be spherical. Compared with the traditional block structure, the spherical permanent magnet block 7 can realize multi-dimensional rolling in the pollutant interception zone 6, and can more flexibly contact and adsorb iron oxide scale and iron powder at different positions. At the same time, the baffles 8 welded at both ends of the scraper 3 form a more closed and stable pollutant interception zone 6, which effectively reduces the channel through which the permanent magnet block 7 may escape, and eliminates the risk of the spherical permanent magnet block 7 accidentally escaping from the interception zone due to turbulent water flow, equipment vibration or violent scraping of the scraper 3.

[0052] Furthermore, the filter screen 2 is divided into a filter area 202 and a blocking stop area 203 from top to bottom, and the ring frame 401 reciprocates between the filter area 202 and the blocking stop area 203 . The width of the ring frame 401 is smaller than that of the blocking stop area 203 .

[0053] In this embodiment, in order to avoid the shutdown position of the recoil water inlet tank 4, the filter screen 2 is divided into a filter area 202 and a blocking shutdown area 203, thereby realizing differentiated management. The filter area 202 focuses on daily high-efficiency filtering work to intercept various pollutants in the hot-rolled turbid water, while the blocking shutdown area 203 is like a "parking space" to store the recoil water inlet tank 4 in the shutdown state. When it starts to move, it proves that the scraper 3 starts to remove impurities, and it is necessary to prevent fine impurities from passing through the filter screen 2.

[0054] The width of the ring frame 401 is smaller than the width of the blocking stop area 203, which is also for stabilizing the stop and the reciprocating movement position.

[0055] Furthermore, it also includes: a high-pressure cleaning component is movably arranged on the outer wall of the filter box 1, and the high-pressure cleaning component moves close to or away from one of the filter screens 2, and the high-pressure cleaning component is used to clean the filter screen 2.

[0056] In this embodiment, in order to achieve double cleaning protection, a high-pressure cleaning component is added on the basis of the original scraper 3 and recoil water tank 4 cleaning mechanism of the device to form a double or even multiple cleaning defense line. It uses the powerful impact force of high-pressure water flow to deeply break down stubborn dirt and ensure the permeability of the filter screen 2.

[0057] Specifically, the high-pressure cleaning device can use a movable mechanical arm to drive a high-pressure spray gun, the front end is equipped with an adjustable nozzle, and the tail of the spray gun is connected to an external high-pressure pump unit through a high-strength rubber hose. The whole process is automated, and the filter net can be cleaned accurately and efficiently.

[0058] It should be noted that 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A hot rolling turbid ring water treatment device, characterized in that: include: A filter box (1), the filter box (1) having a water outlet (102) and two water inlets (101); Two filter screens (2), the two filter screens (2) are both arranged in the filter box (1), the two filter screens (2) are both located between the two water inlets (101), and the water outlet (102) is located between the two filter screens (2); a scraper (3), the scraper (3) being movably arranged in the filter box (1) and abutting against the filter screen (2); A backwash water inlet tank (4), the backwash water inlet tank (4) is movably arranged in the filter box (1), located between the two filter screens (2), and connected to the filter box (1); the scraper (3) is located on one side of the backwash water inlet tank (4); the backwash water inlet tank (4) is used to spray backwash high-pressure water to the scraper (3).

2. A hot rolling turbid ring water treatment device according to claim 1, characterized in that: There are two scrapers (3), and the scrapers (3) are located on a side of the filter screen (2) away from the backwash water tank (4), and further include: An interception plate (5), wherein the interception plate (5) is arranged on the scraper (3), and a pollutant interception area (6) is formed between the interception plate (5) and the scraper (3).

3. A hot rolling turbid ring water treatment device according to claim 2, characterized in that: The scraper (3) moves in a vertical direction, the scraper (3) is arranged in a horizontal direction, there are two interception plates (5), the two interception plates (5) are arranged obliquely on both sides of the scraper (3), and the two interception plates (5) and the scraper (3) form an arrow shape.

4. A hot rolling turbid ring water treatment device according to claim 3, characterized in that: The two filter screens (2) are both arranged in the vertical direction, the two sides of the recoil water inlet tank (4) are respectively in contact with the two filter screens (2), and the recoil water inlet tank (4) moves in the vertical direction. When the recoil water inlet tank (4) moves, it drives the scraper (3) to move.

5. A hot rolling turbid ring water treatment device according to claim 4, characterized in that: The backwash water tank (4) comprises: An annular frame (401), the annular frame (401) moves in a vertical direction, both sides of the annular frame (401) are provided with openings one (402), the two openings one (402) are respectively in contact with the two filter screens (2), and a backwash water inlet area (403) is formed between the annular frame (401) and the two filter screens (2); The annular frame (401) and the scraper (3) are both made of magnetic material; the annular frame (401) moves, thereby driving the scraper (3) to move; a projection of the scraper (3) onto the filter screen (2) is located within a projection of the annular frame (401) onto the filter screen (2); and the two scrapers (3) are respectively located on one side of the two openings (402).

6. A hot rolling turbid ring water treatment device according to claim 5, characterized in that: The filter screen (2) is in an I-shape, and is detachably arranged in the filter box (1). Both ends of the filter screen (2) have slide grooves (201), and both ends of the scraper (3) have slide parts (301). The scraper (3) is moved and arranged in the slide groove (201) via the slide parts (301).

7. A hot rolling turbid ring water treatment device according to claim 3, characterized in that: The pollutant interception zone (6) has an opening 2 (601) and further comprises: A plurality of permanent magnetic blocks (7), wherein the plurality of permanent magnetic blocks (7) are movably arranged in the pollutant interception zone (6), and the width of the permanent magnetic blocks (7) is greater than the width of the second opening (601), and the permanent magnetic blocks (7) are used to absorb iron oxide and iron powder in the pollutant interception zone (6).

8. A hot rolling turbid ring water treatment device according to claim 7, characterized in that: The permanent magnet block (7) is spherical and further comprises: A plurality of baffles (8), wherein the baffles (8) are arranged on the ends of the scraper (3) and are fixedly connected to the interception plate (5), wherein the pollutant interception zone (6) is formed between the two baffles (8), the interception plate (5) and the scraper (3), and the baffles (8) are used to prevent the permanent magnet block (7) from escaping from the pollutant interception zone (6).

9. A hot rolling turbid ring water treatment device according to claim 5, characterized in that: The filter screen (2) is divided into a filter area (202) and a blocking and stopping area (203) from top to bottom, the ring frame (401) reciprocates between the filter area (202) and the blocking and stopping area (203), and the width of the ring frame (401) is smaller than the width of the blocking and stopping area (203).

10. A hot rolling turbid ring water treatment device according to claim 1, characterized in that: Also includes: A high-pressure cleaning component, wherein the high-pressure cleaning component is movably arranged on the outer wall of the filter box (1), and after the high-pressure cleaning component moves, it approaches or moves away from one of the filter screens (2), and the high-pressure cleaning component is used to clean the filter screen (2).

Images