Hot rolled strip steel dephosphorization device

By designing a dephosphorization device for hot-rolled strip steel, employing high-pressure nozzles for coordinated spraying, filter plates for interception, and a multi-stage filtration system, the problem of iron oxide scale clogging the drainage channels was solved, achieving efficient dephosphorization and water resource recycling.

CN223733540UActive Publication Date: 2025-12-30QUZHOU JINGQI MASCH CO LTD
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Patent Information

Application Number
CN202520107271.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-12-30
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing high-pressure water descaling equipment is prone to clogging of drainage channels and makes it difficult to clean the iron oxide scale when removing iron oxide scale from the surface of hot-rolled strip steel.

Method used

A descaling device for hot-rolled strip steel was designed, which employs high-pressure nozzles for coordinated spraying, filter plates for interception, scraper collection, and a multi-stage filtration system, including coarse filter screen, fine filter screen, and filter cotton, to effectively remove iron oxide scale and prevent it from entering the water circulation system.

Benefits of technology

It effectively removes iron oxide scale from the surface of steel strips, avoiding the problems of local iron oxide scale residue and drainage channel blockage in traditional methods, thus improving phosphorus removal efficiency and water resource recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hot rolled strip steel dephosphorization device which comprises a shell, a placing plate is fixedly installed in the shell, a first containing box is fixedly installed above the placing plate, and a second containing box is fixedly installed at the bottom of the placing plate. The device can effectively remove oxide scale on the surface of the strip steel, the problem of local residue caused by traditional phosphorus removal is avoided, the oxide scale on the surface of the hot-rolled strip steel is washed away by the high-pressure spray head, waste water and the washed-away oxide scale fall onto the first filter plate firstly, the large oxide scale is intercepted by the first filter plate, and the large oxide scale is removed by the second filter plate. Waste water and a small amount of oxide scale fall into the shell, a movable plate moves left and right at regular time, scraping plates on the two sides are driven to move left and right, the scraping plates push the oxide scale on a first filter plate leftwards or rightwards till the oxide scale falls into collecting boxes on the two sides to be collected, and follow-up treatment of the oxide scale is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hot rolled strip steel production equipment technical field, concretely is a kind of hot rolled strip steel phosphorus removal device. BACKGROUND

[0002] In the hot rolled strip steel production process, a layer of oxide scale (phosphorus skin) is formed on the surface of strip steel, and the existence of the layer of oxide scale can adversely affect the quality of strip steel and subsequent processing.

[0003] The billet is oxidized at high temperature, and a dense layer of oxide scale (phosphorus skin) is formed on its surface. If this layer of oxide scale cannot be removed before rolling, it will affect the surface quality of the finished product during rolling. The residual oxide scale will also accelerate the wear of the roller and reduce the service life of the roller. Therefore, before the billet is rolled, the surface oxide scale must be removed. The method of using the mechanical impact force of high-pressure water to remove the oxide scale (high-pressure water phosphorus removal) is currently the most common and effective method.

[0004] The existing high-pressure water phosphorus removal equipment will flush the oxide scale on the surface of the hot rolled strip steel down when in use. The oxide scale will flow out through the drainage channel together with the wastewater. Larger oxide scales are easy to cause blockage of the drainage channel, and are not conducive to the cleaning of the oxide scale. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of hot rolled strip steel phosphorus removal device to solve the technical problem of hot rolled strip steel phosphorus removal.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of hot rolled strip steel phosphorus removal device, including shell, fixed mounting is placed in the inside of the shell Plate, the upper portion of the fixed mounting of the plate is housed Box one, the bottom of the fixed mounting of the plate is housed Box two, the fixed mounting of the lower portion of the plate is filter plate one, the fixed mounting of the both sides of filter plate one is fixed block and fixed block, fixed mounting is connected with the plate between fixed block and fixed block, sliding slot is opened in the connecting plate, sliding block is slidably installed in the sliding slot, the fixed mounting of the top of sliding block is moving plate, the fixed mounting of the lower portion of filter plate one is filter plate two, the fixed mounting of the both sides of shell is collected Box one and collected Box two, the fixed mounting of the top of shell is water tank, the fixed mounting of the side of water tank is water pump one, the fixed mounting of the rear side of shell is drain pipe, the fixed connection of the end of drain pipe away from shell is filter box, the fixed mounting of the side of filter box is water pump two, water pump and filter box are communicated, water pump two is communicated with water tank by connecting pipe.

[0008] As a preferred scheme of the utility model, high-pressure spray head one and high-pressure spray head two are fixedly installed on the both sides of housed Box one and housed Box.

[0009] As the preferred scheme of the utility model, the two sides of the moving plate are fixedly installed with scraper one and scraper two.

[0010] As the preferred scheme of the utility model, the collecting box one and the collecting box two are fixedly installed with filter screens.

[0011] As the preferred scheme of the utility model, the filter box is sequentially provided with a coarse filter screen, a fine filter screen and filter cotton, and the coarse filter screen, the fine filter screen and the filter cotton sequentially intercept the small amount of oxide scale debris in the sewage.

[0012] As the preferred scheme of the utility model, the side surface of the filter plate two is an arc structure, and the bottom of the filter plate two is downwardly protruding.

[0013] Compared with the prior art, the hot-rolled strip steel phosphorus removal device provided by the utility model has the following beneficial effects: the device can more effectively remove the oxide scale on the surface of the strip steel, avoids the local residual problem that may occur in the traditional phosphorus removal method, the high-pressure spray head washes away the oxide scale on the surface of the hot-rolled strip steel, the waste water and the washed away oxide scale first fall on the filter plate one, the filter plate one intercepts the large pieces of oxide scale, the waste water and the small amount of oxide scale fall into the shell interior, the moving plate is moved left and right at regular time, the two side scrapers are moved left and right, the scraper pushes the oxide scale on the filter plate one left or right until the oxide scale falls into the collecting box on the two sides and is collected, and the oxide scale is convenient for subsequent treatment. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only the case of the embodiments of the application, and the other drawings can be obtained by the person skilled in the art without creative labor on the premise.

[0015] Figure 1 It is the structural schematic diagram of the utility model embodiment;

[0016] Figure 2 It is the structural schematic diagram of the filter plate one in the utility model embodiment;

[0017] Figure 3 It is the structural schematic diagram of the collecting box in the utility model embodiment;

[0018] Figure 4 It is the left view structural schematic diagram of the utility model embodiment;

[0019] Figure 5 It is the internal structural schematic diagram of the filter box in the utility model embodiment.

[0020] Label: 1, shell; 2, placement plate; 3, containing box one; 4, containing box two; 5, high-pressure nozzle one; 6, high-pressure nozzle two; 7, filter plate one; 8, fixed block one; 9, fixed block two; 10, connecting plate; 11, sliding slot; 12, sliding block; 13, moving plate; 14, scraper one; 15, scraper two; 16, filter plate two; 17, collection box one; 18, collection box two; 19, water tank; 20, water pump one; 21, drain pipe; 22, filter box; 23, water pump two; 24, connecting pipe; 2101, coarse filter screen; 2102, fine filter screen; 2103, filter cotton. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the embodiments of the present application are further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0022] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0023] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, integrally connected, or detachably connected; it can be the communication inside two elements; it can be directly connected, or indirectly connected through an intermediate medium; for those skilled in the art, the specific meaning of the above terms in the embodiments of the present application should be understood according to the specific circumstances.

[0024] Reference Figures 1-5The utility model discloses a hot rolled strip steel phosphorus removal device, including the casing 1, the inside fixed mounting of casing 1 has the placement board 2, the top fixed mounting of placement board 2 has the containing box one 3, the bottom fixed mounting of placement board 2 has the containing box two 4, the below fixed mounting of placement board 2 has the filter plate one 7, the both sides fixed mounting of filter plate one 7 has fixed block one 8 and fixed block two 9, the fixed installation of fixed block one 8 and fixed block two 9 between has the connecting plate 10, the chute 11 is seted up in the connecting plate 10, the sliding installation of chute 11 has the sliding block 12, the top fixed mounting of sliding block 12 has the moving plate 13, the below fixed mounting of filter plate one 7 has the filter plate two 16, the both sides fixed mounting of casing 1 has the collection box one 17 and the collection box two 18, the top fixed mounting of casing 1 has the water tank 19, the one side fixed mounting of water tank 19 has the water pump one 20, the rear side fixed mounting of casing 1 has the drain pipe 21, the one end fixed connection of drain pipe 21 away from casing 1 has the filter box 22, the one side fixed mounting of filter box 22 has the water pump two 23, and the water pump two 23 is communicated with filter box 22, and the water pump two 23 is communicated with water tank 19 through connecting pipe 24.

[0025] The both sides fixed mounting of containing box one 3 and containing box two 4 has high pressure shower head one 5 and high pressure shower head two 6.

[0026] The both sides fixed mounting of containing box one 3 and containing box two 4 has high pressure shower head one 5 and high pressure shower head two 6.

[0027] The both sides fixed mounting of moving plate 13 has scraper one 14 and scraper two 15.

[0028] The both sides fixed mounting of moving plate 13 has scraper one 14 and scraper two 15.

[0029] The both sides fixed mounting of containing box one 3 and containing box two 4 has high pressure shower head one 5 and high pressure shower head two 6.

[0030] The both sides fixed mounting of containing box one 3 and containing box two 4 has high pressure shower head one 5 and high pressure shower head two 6.

[0031] The both sides fixed mounting of containing box one 3 and containing box two 4 has high pressure shower head one 5 and high pressure shower head two 6.

[0032] The coarse filter screen 2101 has large mesh, and can first intercept the large-particle-size oxide scale debris in the sewage, the fine filter screen 2102 has relatively small mesh, and can further intercept the small debris, and the filter cotton 2103 has fine fiber structure, and can deeply intercept and adsorb the extremely small oxide scale debris and other fine impurities remaining in the sewage after the first two stages of filtration.

[0033] The side surface of the filter plate two 16 is in arc shape structure, and the bottom of the filter plate two 16 is protruded downward, the downward protruded bottom structure helps to guide the water flow to flow downward, and the gravity action makes the impurities in the sewage more easily settle to the bottom of the collecting box.

[0034] When the embodiment of the utility model is used, the hot-rolled strip steel is placed on the placing plate 2, the high-pressure nozzle one 5 and the high-pressure nozzle two 6 are used to flush the oxide scale on the surface of the hot-rolled strip steel, the waste water and the flushed oxide scale fall on the filter plate one 7 first, the filter plate one 7 is used to intercept the big oxide scale, the waste water and a small amount of oxide scale fall into the shell 1, the moving plate 13 is moved left and right, the scraper one 14 and the scraper two 15 on both sides are moved, the scraper one 14 and the scraper two 15 push the oxide scale on the filter plate one 7 to the left or the right until falling into the collecting box one 17 and the collecting box two 18 on both sides, which is convenient for subsequent treatment of the oxide scale, the filter plate one 7 intercepts the big oxide scale, the small oxide scale falls into the filter plate two 16 through the filter plate one 7, the amount of the oxide scale falling to the bottom of the shell 1 is reduced, the drain pipe 21 is prevented from being blocked, the water in the shell 1 is drained through the drain pipe 21, a small amount of oxide scale debris in the waste water is filtered through the filter box 22, direct discharge is prevented, the water pump one 20 is used to convey the water in the water tank 19 to the containing box one 3, and the water pump two 23 is used to convey the filtered water in the shell 1 to the water tank 19, so that the water is recycled, and water resources are saved.

[0035] The basic principle of the application is shown and described above, the above is only the preferred embodiment of the application, and does not limit the application, the above embodiment and the description in the specification only illustrate the principle of the application, and any modification, equivalent replacement and improvement within the scope of the application should be included in the protection scope of the application.

Claims

1. A hot strip steel dephosphorization device comprising a housing (1), characterized in that: The inside of the shell (1) is fixedly installed with a placing plate (2), the upper side of the placing plate (2) is fixedly installed with a containing box one (3), the bottom of the placing plate (2) is fixedly installed with a containing box two (4), the lower side of the placing plate (2) is fixedly installed with a filter plate one (7), the both sides of the filter plate one (7) are fixedly installed with a fixed block one (8) and a fixed block two (9), the fixed block one (8) and the fixed block two (9) are fixedly installed with a connecting plate (10), the connecting plate (10) is provided with a sliding groove (11), the sliding groove (11) is slidably installed with a sliding block (12), the top of the sliding block (12) is fixedly installed with a moving plate (13), the lower side of the filter plate one (7) is fixedly installed with a filter plate two (16), the both sides of the shell (1) are fixedly installed with a collection box one (17) and a collection box two (18), the top of the shell (1) is fixedly installed with a water tank (19), one side of the water tank (19) is fixedly installed with a water pump one (20), the rear side of the shell (1) is fixedly installed with a drain pipe (21), the end, away from the shell (1), of the drain pipe (21) is fixedly connected with a filter box (22), one side of the filter box (22) is fixedly installed with a water pump two (23), the water pump two (23) communicates with the filter box (22), the water pump two (23) communicates with the water tank (19) through a connecting pipe (24).

2. A device for dephosphorization of hot-rolled strip according to claim 1, characterized in that: The both sides of the containing box one (3) and the containing box two (4) are fixedly installed with a high-pressure spray head one (5) and a high-pressure spray head two (6).

3. A device for removing phosphorus from hot-rolled strip steel according to claim 1, characterized in that: The both sides of the moving plate (13) are fixedly installed with a scraper one (14) and a scraper two (15).

4. The phosphorus removal device for hot-rolled steel strip according to claim 1, characterized in that: The collection box one (17) and the collection box two (18) are fixedly installed with filter screens.

5. The phosphorus removal device for hot-rolled steel strip according to claim 1, characterized in that: The filter box (22) is sequentially provided with a coarse filter screen (2101), a fine filter screen (2102) and filter cotton (2103), which sequentially intercept a small amount of iron oxide scale debris in sewage.

6. The apparatus for removing phosphorus from hot-rolled steel strip according to claim 1, characterized in that: The side of the filter plate two (16) is of an arc-shaped structure, and the bottom of the filter plate two (16) is protruded downward.