CN211538999U

CN211538999U - Descaling box for strip steel slab

Info

Publication number: CN211538999U
Application number: CN201922464403.2U
Authority: CN
Inventors: 张立新; 李海强; 李鹏; 张标; 杨峰
Original assignee: Shanxi Gaoyi Steel Co ltd
Current assignee: Shanxi Gaoyi Steel Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-22
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a take steel slab descaling box relates to the slab descaling technical field, specifically is a take steel slab descaling box, including descaling box and water tank, the both ends of descaling box are provided with feed inlet and discharge gate respectively, the crooked roller set of fixed surface of axis of rotation is connected with and levels the roller set, the fixed surface of axis of rotation is connected with the descaling roller set, one side fixedly connected with high-pressure squirt of descaling box, the bottom fixedly connected with of descaling box is arranged hopper. This take steel plate base descaling box, the setting of crooked running roller makes this take steel plate base descaling box possess the effect of rupture oxide layer, has reached the purpose that makes the oxide layer can detach sooner, levels the setting of roller set, has reached and has made things convenient for subsequent descaling roller set can more effectively descale the purpose, and the setting of water pump and filter has reached the purpose of water economy resource, sets up through the cooperation of collecting box and filter slope, has reached and has prevented that the inside cinder of water tank is too much to be abluent purpose.

Description

Descaling box for strip steel slab

Technical Field

The utility model relates to a descaling box technical field specifically is a belted steel slab descaling box.

Background

The process for removing the scale on the surface of the plate blank before rolling. In the production process of hot rolled steel, furnace-generated iron oxide scales on the surface of a steel billet are one of main reasons influencing the surface quality of the steel, and due to the existence of the furnace-generated iron oxide scales, various product defects such as pits, iron oxide pressing and the like are generated on the surface of the steel. In order to prevent the scale on the surface of the bloom or continuous cast steel billet from pressing into the metal to cause defects, the slab must be descaled before rough rolling. The removal of the scale must take place before rolling when the scale has not yet been pressed into the surface and the surface of the rolled stock is not large. Before the slab enters the roughing train, the large vertical rolls arranged in front of the roughing train are used to give a certain lateral reduction to break the scale on the surface of the slab, and then the high-pressure water is used to remove the scale in the high-pressure water descaling box and the front and rear parts of the roughing train. The pressure of high pressure water is 120MPa for plain carbon steel, and 170MPa, even as high as 200MPa for alloy steel. The slabs after rolling in the roughing mill train are also descaled after passing through the flying shear head in front of the finishing mill train. In the past, a finish rolling horizontal roller descaling machine is adopted for descaling, and in modern rolling mills, a high-pressure water descaling box is arranged between a flying shear and a first finishing mill, and high-pressure water nozzles are arranged at the inlets of a plurality of steel strips in front of the finishing mill, so that the high-pressure water with the water pressure of about 150MPa is used for descaling the iron scale. The descaled strip blank immediately enters a finishing mill group for finish rolling. Descaling means that the iron scale is removed completely so as to avoid pressing into the surface to generate defects, thereby improving the surface quality of the product, and the main tools are a descaler and high-pressure water. In order to solve this problem, various descaling methods have been adopted at home and abroad. In contrast, the high-pressure water descaling technology has the advantages of wide steel grade application range, high descaling rate, low comprehensive cost and the like, is widely applied to hot-state descaling and cold-state descaling, and becomes the mainstream of the current descaling method.

The existing descaling box has the defects that an oxide layer on the surface of a steel billet cannot be thoroughly removed, water resources are wasted, and the removed oxide layer is seriously accumulated in the box.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a take steel slab descaling box has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a take steel slab descaling box, includes descaling box and water tank, the both ends of descaling box are provided with feed inlet and discharge gate respectively, a plurality of axis of rotation of inner wall fixedly connected with of descaling box, the crooked roller set of surface fixedly connected with of axis of rotation and level the roller set, the equal fixedly connected with power device in one end of crooked roller set, level the roller set and the descaling the roller set, one side fixedly connected with high-pressure squirt of descaling box, the bottom fixedly connected with of descaling box is arranged hopper, arrange the bottom of hopper and set up the inside at the water tank, one side fixedly connected with filter of water tank.

Optionally, a support frame is fixedly connected to the outer surface of the descaling box, a motor base is fixedly connected to the upper surface of the support frame, the power device is composed of 3 motors, power wheels and driving wheels, the output ends of the motors are inserted into inner holes of the power wheels, and the power wheels are meshed with the driving wheels.

Optionally, the bending roller set is composed of two small rollers and a large roller, the large roller is arranged above the small rollers, the rotating directions of the two small rollers are opposite to the rotating direction of the large roller, the leveling roller set is composed of two identical small rollers, and the rotating directions of the two identical small rollers are opposite.

Optionally, the descaling roller group is composed of two descaling rollers, a plurality of hobbing teeth are arranged on the outer surfaces of the descaling rollers, and a plate blank is arranged between the two descaling rollers.

Optionally, the bottom of the water tank is fixedly connected with a water suction pipe, one end of the water suction pipe is fixedly connected with a water pump, one end of the water pump is fixedly connected with a transport pipe, one end of the transport pipe is fixedly connected with a water inlet of a high-pressure water gun, and a water outlet of the high-pressure water gun is arranged near the descaling roller.

Optionally, the one end of filter extends out the water tank, the filter sets up for the slope, one side fixedly connected with collecting box of water tank, the one end setting of filter is in the top of collecting box.

(III) advantageous effects

The utility model provides a band steel slab descaling box possesses following beneficial effect:

1. this strip steel billet descaling box, through the setting of crooked running roller, can make the crooked oxide layer that leads to the slab surface of slab rupture through big gyro wheel and little gyro wheel when using, make this strip steel billet descaling box have the effect of rupture oxide layer, reached and made the purpose that the oxide layer can detach sooner, through the setting of leveling the roller set, the in-process that uses can make the crooked slab after crooked again for original level state, thereby the effect of further rupture oxide layer has been played, reached and made things convenient for subsequent descaling roller set can more effectively descale the purpose.

2. This take steel plate base to descale case through the setting of water pump and filter, makes this take steel plate base to descale the case and has possessed hydrologic cycle's effect, has reached the purpose of water economy resource, sets up through the cooperation of collecting box and filter slope, can collect the cinder inflow collecting box that separates through the filter at the in-process that uses, has reached and has prevented that the inside cinder of water tank from too much being difficult to abluent purpose.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic rear view of the present invention;

FIG. 3 is a left side view of the structure of the present invention;

fig. 4 is the schematic diagram of the three-dimensional structure of the descaling rolling wheel of the utility model.

In the figure: 1. a descaling box; 2. a water tank; 3. a rotating shaft; 4. a bending roller set; 5. leveling roller sets; 6. A descaling roller set; 7. a high pressure water gun; 8. a discharge hopper; 9. a filter plate; 10. a support frame; 11. a motor base; 12. an electric motor; 13. a power wheel; 14. a driving wheel; 15. a slab; 16. a suction pipe; 17. a water pump; 18. a transport pipe; 19. a collection box; 401. a small roller; 402. a large roller; 601. and (4) descaling rollers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a strip steel slab descaling box comprises a descaling box 1 and a water tank 2, wherein a feed inlet and a discharge outlet are respectively arranged at two ends of the descaling box 1, a plurality of rotating shafts 3 are fixedly connected to the inner wall of the descaling box 1, a bending roller set 4 and a leveling roller set 5 are fixedly connected to the outer surface of each rotating shaft 3, the bending roller set 4 comprises two small rollers 401 and a large roller 402, the large roller 402 is arranged above the small rollers 401, the rotating direction of the two small rollers 401 is opposite to that of the large roller 402, the leveling roller set 5 comprises two same rollers, the rotating directions of the two same rollers are opposite, a descaling roller set 6 is fixedly connected to the outer surface of each rotating shaft 3, the descaling roller set 6 comprises two descaling rollers 601, a plurality of rolling teeth are arranged on the outer surface of each descaling roller 601, a slab 15 is arranged between the two descaling rollers 601, and power devices are fixedly connected to one ends of the bending roller set 4, the leveling roller set 5 and the descaling roller, the outer surface of the descaling box 1 is fixedly connected with a support frame 10, the upper surface of the support frame 10 is fixedly connected with a motor base 11, a power device consists of motors 12, power wheels 13 and a driving wheel 14, the number of the motors 12 is 3, the output ends of the motors 12 are inserted into inner holes of the power wheels 13, the power wheels 13 are meshed with the driving wheel 14 to be connected with one side of the descaling box 1 and are fixedly connected with a high-pressure water gun 7, the bottom of the descaling box 1 is fixedly connected with a discharge hopper 8, the bottom of the discharge hopper 8 is arranged in the water tank 2, one side of the water tank 2 is fixedly connected with a filter plate 9, one end of the filter plate 9 extends out of the water tank 2, the filter plate 9 is obliquely arranged, one side of the water tank 2 is fixedly connected with a collection box 19, one end of the filter plate 9 is arranged above the collection box 19, one end of the water pump 17 is fixedly connected with a conveying pipe 18, one end of the conveying pipe 18 is fixedly connected with a water inlet of the high-pressure water gun 7, and a water outlet of the high-pressure water gun 7 is arranged near the descaling idler wheel 601.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

During the use, put into descaling box 1's feed inlet department with the slab 15 of high fever, open three motor 12, slab 15 is crooked through bending roller set 4, make the oxide layer on slab 15 surface break, make slab 15 bend into original level and smooth state again through leveling roller set 5, make the oxide layer on slab 15 surface break again, hobbing through descaling gyro wheel 601 surface carries out rolling to the oxide layer once more, spray water through high-pressure squirt 7, get rid of the oxide layer, cracked oxide layer and spun water flow into the water tank through row hopper 8, filter through filter 9, rivers go into the bottom of water tank 2, recycle through water pump 17, the oxide layer flows into collecting box 19 through inclined filter 9.

The utility model discloses a theory of operation and beneficial effect: the descaling box for the strip steel plate blank has the advantages that through the arrangement of the bending rollers, the strip steel plate blank 15 can be bent through the large rollers 402 and the small rollers 401 to cause the oxide layer on the surface of the strip steel plate blank to break when the descaling box is used, so that the effect of breaking the oxide layer is achieved, the purpose of quickly removing the oxide layer is achieved, through the arrangement of the leveling roller set 5, the bent strip steel plate blank 15 can be bent again to be in the original leveling state in the using process, the effect of further breaking the oxide layer is achieved, the purpose of facilitating the subsequent descaling roller set to effectively remove scale is achieved, through the arrangement of the water pump 17 and the filter plate 9, the descaling box for the strip steel plate blank has the effect of water circulation, the purpose of saving water resources is achieved, through the matching arrangement of the collecting box 19 and the filter plate 9 in an inclined mode, the separated oxide layer can flow into the collecting box 19 through the filter plate 9 to be collected, the purpose of preventing the excessive oxide skin in the water tank 2 from being difficult to clean is achieved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a belted steel slab descaling box, includes descaling box (1) and water tank (2), its characterized in that: the both ends of descaling case (1) are provided with feed inlet and discharge gate respectively, a plurality of axis of rotation (3) of inner wall fixedly connected with of descaling case (1), the crooked roller set (4) of the outer fixed surface of axis of rotation (3) with level roller set (5), axis of rotation (3) outer fixed surface is connected with descaling roller set (6), the equal fixedly connected with power device of one end of crooked roller set (4), level roller set (5) and descaling roller set (6), one side fixedly connected with high-pressure squirt (7) of descaling case (1), the bottom fixedly connected with of descaling case (1) is arranged hopper (8), the bottom of arranging hopper (8) sets up the inside in water tank (2), one side fixedly connected with filter (9) of water tank (2).

2. The strip steel slab descaling box according to claim 1, wherein: the descaling box is characterized in that a support frame (10) is fixedly connected to the outer surface of the descaling box (1), a motor base (11) is fixedly connected to the upper surface of the support frame (10), the power device is composed of motors (12), power wheels (13) and driving wheels (14), the number of the motors (12) is 3, the output ends of the motors (12) are inserted into inner holes of the power wheels (13), and the power wheels (13) are meshed with the driving wheels (14).

3. The strip steel slab descaling box according to claim 1, wherein: the bending roller set (4) is composed of two small rollers (401) and a large roller (402), the large roller (402) is arranged above the small rollers (401), the rotating directions of the two small rollers (401) are opposite to the rotating direction of the large roller (402), the leveling roller set (5) is composed of two same rollers, and the rotating directions of the two same rollers are opposite.

4. The strip steel slab descaling box according to claim 1, wherein: the descaling roller group (6) is composed of two descaling rollers (601), a plurality of hobbing teeth are arranged on the outer surfaces of the descaling rollers (601), and a plate blank (15) is arranged between the two descaling rollers (601).

5. The strip steel slab descaling box according to claim 1, wherein: the descaling device is characterized in that a water suction pipe (16) is fixedly connected to the bottom of the water tank (2), a water pump (17) is fixedly connected to one end of the water suction pipe (16), a conveying pipe (18) is fixedly connected to one end of the water pump (17), one end of the conveying pipe (18) is fixedly connected to a water inlet of the high-pressure water gun (7), and a water outlet of the high-pressure water gun (7) is arranged near the descaling roller (601).

6. The strip steel slab descaling box according to claim 1, wherein: the one end of filter (9) extends out water tank (2), filter (9) set up for the slope, one side fixedly connected with collecting box (19) of water tank (2), the one end setting of filter (9) is in the top of collecting box (19).