CN217411935U

CN217411935U - Cooling system for stepping grid plate type steel cooling bed

Info

Publication number: CN217411935U
Application number: CN202220247174.8U
Authority: CN
Inventors: 魏嘉兵; 杨兆惠; 杨梅; 陈迎新; 沈杰
Original assignee: Tangshan Heavy Plate Co ltd; Tangshan Iron and Steel Group Co Ltd; HBIS Co Ltd Tangshan Branch
Current assignee: Tangshan Heavy Plate Co ltd; Tangshan Iron and Steel Group Co Ltd; HBIS Co Ltd Tangshan Branch
Priority date: 2022-01-30
Filing date: 2022-01-30
Publication date: 2022-09-13
Anticipated expiration: 2032-01-30

Abstract

The utility model relates to a cooling system for marching type bars slat type steel cold bed belongs to metallurgical industry steel rolling production facility technical field. The technical scheme is as follows: a plurality of water branch pipes (5) and a plurality of air branch pipes (7) are respectively led out from the water pipe (1) and the air pipe (3) in the length direction, each water branch pipe (5) and each air branch pipe (7) are respectively connected with a water mist device (9), and the water mist devices (9) are sequentially arranged along the width direction of the cooling bed; the water mist device (9) comprises mist spraying pipes (17), an outer cylinder (18) and an inner cylinder (19), a water branch pipe (5) is connected with the outer cylinder (18), a gas branch pipe (7) is connected with the inner cylinder (19), the outer cylinder (18) is axially connected with a plurality of mist spraying pipes (17), and each mist spraying pipe (17) is provided with a plurality of mist spraying holes (16). The utility model has the advantages that: the cooling speed of the rolled piece is improved, and the cost is saved.

Description

Cooling system for stepping grid plate type steel cooling bed

Technical Field

The utility model relates to a cooling system for marching type bars slat type steel cooling bed belongs to metallurgical industry steel rolling production facility technical field.

Background

The stepped grid plate type steel cooling bed consists of mainly cold bed input roller way, cold bed inlet cross shifter, cold bed inlet upturning device, cold bed movable table, cold bed fixing table, cold bed outlet down-turned device, cold bed outlet cross shifter, cold bed output roller way, elevating baffle, cooling blower, etc.

The cooling bed main body is composed of a movable table top and a fixed table top, the movable table top is composed of movable grid plate plates which are connected in series, the lifting and the transverse movement of the movable grid plate plates are respectively realized by 30 hydraulic cylinders, the movable grid plate is divided into three sections along the running direction of rolled pieces, and the movable grid plate is divided into ten groups along the width direction of the cooling bed, namely, the three sections and the ten groups are also called as a three-section and ten-group combined cooling bed. The fixed table-board is composed of fixed grid-bar boards which are connected in series, and the whole fixed table-board is fixed and immovable. When the table is not in use, the movable table top is lower than the fixed table top. When the stepping type table is used, the movable table top is lifted by the lifting hydraulic cylinder and is higher than the fixed table top by a certain distance, the movable table top is driven by the transverse hydraulic cylinder to move by a certain distance, then the lifting hydraulic cylinder descends, the transverse hydraulic cylinder retracts to return to the original position, and a stepping period is completed.

The cooling mode of the section steel on the stepping grid plate type steel cooling bed is natural air cooling, and in hot summer, the ambient temperature is high, the temperature reduction speed of the steel material on the cooling bed is low, and the condition that the production capacity of the cooling bed is insufficient occurs. And the production line process of the large-scale section steel adopts a long-scale cold straightening mode, so that after the production rhythm of a rolling mill is accelerated, the temperature of the rolled and formed steel material is about 700 ℃ before a cooling bed. The red hot steel material is transported to the cooling bed from the feeding trolley and is transported to the outlet of the cooling bed step by step, and the temperature of the red hot steel material cannot reach 80 ℃ required by the straightening process. In order to ensure the quality of the straightening process in production, the cooling bed has to be stopped and cooled to meet the straightening requirement temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cooling system for marching type bars slat type steel cooling bed can improve the cooling rate to the rolled piece, solves the problem that exists among the background art.

The technical scheme of the utility model is that:

a cooling system for a stepping grid strip plate type steel cooling bed comprises a movable table top and a fixed table top, wherein the movable table top and the fixed table top are respectively formed by connecting movable grid strips and fixed grid strips in series;

the water mist device comprises an aerosol pipe, an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder are concentrically arranged, two ends of the outer cylinder and the inner cylinder are sealed, a water branch pipe is connected with the outer cylinder, an aerosol branch pipe is connected with the inner cylinder, the outer cylinder is axially connected with a plurality of aerosol pipes, each aerosol pipe is provided with a plurality of aerosol holes, and the inner cylinder is provided with air injection holes at positions opposite to the aerosol pipes.

The aerial fog pipe in the water fog device is positioned between the fixed grid plate plates.

The water sprayer is fixed on the fixed grid plate through a clamping plate, a nut and a clamp.

The clamping plate is fixed on the fixed grid plate, the clamp is of a U-shaped structure matched with the outer cylinder in the water sprayer, and threads matched with the nut are arranged at two ends of the clamp.

And the water pipe, the air pipe, the water branch pipe and the air branch pipe are respectively provided with a water valve, an air valve, a water branch valve and an air branch valve.

The water pipe and the air pipe are respectively fixed on the support.

The utility model has the advantages that: water and gas are mixed with each other to form mist, and the mist is sprayed to the surface of a rolled piece to be cooled, so that the cooling speed of the rolled piece is improved, and meanwhile, a water source and a gas source required by the method are from the interior of a workshop, and the cost is saved.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a schematic view of the water sprayer of the present invention;

fig. 3 is a front view of the present invention;

FIG. 4 is a partial schematic view of the present invention;

in the figure: the device comprises a water pipe 1, a water valve 2, a gas pipe 3, an air valve 4, a water branch pipe 5, a water branch pipe 6, a gas branch pipe 7, a gas branch valve 8, a water mist device 9, a clamping plate 10, a nut 11, a clamp 12, a support 13, a fixed grid 14, a movable grid 15, a gas mist hole 16, a gas mist pipe 17, an outer cylinder 18, an inner cylinder 19, a rolled piece 20, an S-waterway, a P-gas path and an F-rolled piece moving direction.

Detailed Description

The invention will be further explained by way of example with reference to the accompanying drawings.

Referring to the attached drawings 1-4, the cooling system for the stepping grid strip plate type steel cooling bed comprises a movable table top and a fixed table top, wherein the movable table top and the fixed table top are respectively formed by connecting a movable grid strip plate 15 and a fixed grid strip plate 14 in series, the cooling system for the stepping grid strip plate type steel cooling bed comprises a water pipe 1, an air pipe 3, water branch pipes 5, air branch pipes 7 and water atomizers 9, a plurality of water branch pipes 5 and a plurality of air branch pipes 7 are respectively led out in the length direction of the water pipe 1 and the air pipe 3, each water branch pipe 5 and each air branch pipe 7 are respectively connected with one water atomizer 9, and the water atomizers 9 are sequentially arranged along the width direction of the cooling bed;

the water sprayer 9 comprises an aerosol pipe 17, an outer cylinder 18 and an inner cylinder 19, the outer cylinder 18 and the inner cylinder 19 are concentrically arranged, two ends of the outer cylinder 18 and the inner cylinder 19 are sealed, the water branch pipe 5 is connected with the outer cylinder 18, the air branch pipe 7 is connected with the inner cylinder 19, the outer cylinder 18 is axially connected with a plurality of aerosol pipes 17, each aerosol pipe 17 is provided with a plurality of aerosol holes 16, and the inner cylinder 19 is provided with air injection holes at positions opposite to the aerosol pipes 17.

In this embodiment, as shown in fig. 1, a water pipe 1 provides a water source with a certain pressure for the system, and a water valve 2 is used for controlling the pressure and flow rate inside the water pipe 1. The gas tube 3 provides the system with a source of gas under pressure and the gas valve 4 is used to control the pressure and flow inside the gas tube 3. A water branch pipe 5 and a gas branch pipe 7 are respectively led out in the length direction of the water pipe 1 and the gas pipe 2, and a water branch valve 6 and a gas branch valve 8 are respectively designed on each water branch pipe 5 and each gas branch pipe 7 for respectively adjusting the flow rate and the pressure of each branch. The water sprayers 9 are sequentially arranged along the width direction of the cooling bed, and 23 water sprayers 9 are designed according to the width of the cooling bed.

As shown in fig. 2, the water sprayer 9 is used as an actuating device of the system, the water branch pipe 5 enters the outer cylinder 18 of the water sprayer, and the water branch valve 6 controls the pressure and the flow of the fluid entering the outer cylinder 18. The gas branch pipe 7 enters the inner cylinder 19 of the gas branch pipe, and the gas branch valve 8 controls the pressure and the flow of fluid entering the inner cylinder 19. Six aerosol pipes 17 corresponding to the space between the grid plates of the cooling bed are designed on the water atomizer 9 according to the space between the grid plates of the cooling bed. Each of the aerosol pipes 17 is provided with an aerosol hole 16. The air passage of the water fog device 9 presses the water in the water passage to spray the water out of the air fog hole 16 to form water fog, and the water fog can cool rolled pieces.

As shown in fig. 3, the mist sprayer 9 is fixed by a clamping plate 10, a nut 11 and a clip 12. The clamp plate 10 is mounted on the fixing grid 14 of the cooling bed, and the clamp 12 is U-shaped, and the outer cylinder 18 in the aerosol 9 is lifted up and then fixed by the clamp plate 10 and the nut 11. The support 13 supports the water pipe 1 and the air pipe 3.

As shown in fig. 4, this view is a view from direction a of fig. 3. The clamping plate 10 is welded to the fixing grid 14 of the cooling bed, and the clamp 12 is fixed by the nut 11 through the clamping plate 10.

When the device is used, a water path and a gas path, namely a water pipe 1, a water valve 2, a gas pipe 3 and a gas valve 4 are arranged below the stepping grid plate type steel cooling bed, and the water path and the gas path are supported by a support 13. The water fog devices 9 are used as unit bodies and can be designed and arranged into required number according to the width of the cooling bed, and each water fog device 9 is provided with a separate water path and a separate air path and can independently adjust pressure and flow. That is to say the water sprays 9 arranged on the cooling bed grate can be controlled individually and adjusted individually. And water and gas in the water sprayer 9 are mixed and sprayed to the surface of the rolled piece above the grid plate, so that the water mist cooling of the rolled piece is realized.

Claims

1. The utility model provides a cooling system for marching type bars slat type steel cold bed, marching type bars slat type steel cold bed contain activity mesa and fixed table face, and activity mesa and fixed table face have activity bars slat (15) and fixed bars slat (14) to establish ties respectively and constitute its characterized in that: the cooling system of the stepping grid plate type steel cooling bed comprises a water pipe (1), an air pipe (3), water branch pipes (5), air branch pipes (7) and water fog devices (9), wherein the water branch pipes (5) and the air branch pipes (7) are respectively led out in the length direction of the water pipe (1) and the air pipe (3), each water branch pipe (5) and each air branch pipe (7) are respectively connected with one water fog device (9), and the water fog devices (9) are sequentially arranged along the width direction of the cooling bed;

water fog ware (9) contain aerial fog pipe (17), urceolus (18) and inner tube (19), and urceolus (18) and inner tube (19) are arranged with one heart and both ends are sealed, and water branch pipe (5) are connected with urceolus (18), and gas branch pipe (7) are connected with inner tube (19), a plurality of aerial fog pipes (17) of axial connection of urceolus (18), are equipped with a plurality of aerial fog hole (16) on every aerial fog pipe (17), and the position relative with aerial fog pipe (17) on inner tube (19) is equipped with the fumarole.

2. The cooling system for a step grid plate type steel cooling bed according to claim 1, wherein: and the aerosol pipe (17) in the water atomizer (9) is positioned between the fixed grid slats (14).

3. The cooling system for a stepping grid plate type steel cooling bed according to claim 1, wherein: the water fog device (9) is fixed on the fixed grid plate (14) through a clamping plate (10), a nut (11) and a clip (12).

4. The cooling system for a stepping grid plate type steel cooling bed according to claim 3, wherein: the clamping plate (10) is fixed on the fixed grid plate (14), the clip (12) is of a U-shaped structure matched with the outer cylinder (18) in the water mist device (9), and threads matched with the nut (11) are arranged at two ends of the clip (12).

5. The cooling system for a stepping grid plate type steel cooling bed according to claim 1, wherein: and the water pipe (1), the air pipe (3), the water branch pipe (5) and the air branch pipe (7) are respectively provided with a water valve (2), an air valve (4), a water branch valve (6) and an air branch valve (8).

6. The cooling system for the stepping grid plate type steel cooling bed according to claim 1 or 5, wherein: the water pipe (1) and the air pipe (3) are respectively fixed on the support (13).