SU1224031A1 - Apparatus for water cooling of rolled stock and rolling-mill equipment - Google Patents

Description

The invention relates to the field of organization of circulating water supply for rolling production and can be used in enterprises of the metallurgical industry, mainly in the shops of hot sheet rolling. I

The aim of the invention is to reduce operating costs while simultaneously increasing the wear resistance of the rolls of roller conveyors in the area of the mill stands.

The drawing shows a general scheme of the device.

The device consists of a reverse cycle of water supply of contaminated water to power the cooling systems at the section of the discharge roll table 1, including the power supply of the cooling system 2 for the car, cooling systems for the rollers of the discharge roller table 1 and the winders 3 and the cooling systems at the rolling mill section, including the number of cooling systems for roughing stands 4, finishing rolls 5, and rollers 6 of the roller tables on this site.

Substrate channels are located under the cooling systems, and the channel 7, located under the cooling system at the outlet roller table, is made independently and is not connected with the substitute channel 8 under the cooling systems at the section of the rolling stands.

Substrate channel 7 in the section of the rolling stock cooling system through the settling tank 9 and the pump 10 is connected by a pipe 11 to the roller cooling system b of the roller table in the section of the rolling stands.

The device for water cooling of rolling stock and equipment is equipped with primary 12 and secondary 13 settling basins, cooling tower 14 and pump stations 15 and 16 for supplying purified and cooled water to consumers. Devices for cleaning and cooling water are connected to pipelines. L. Veselovska Editor

Compiled by V.-Pavlenko Tehred V. Kadar

1864/10

Circulation 518 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, st. Project, 4

240312

mi with a permutation channel 8 section rolling stands.

The device works as follows.

5 Through primary 12 and secondary 13 settling tanks, cooling tower 14 purified and cooled water inside the contaminated circulation cycle pumping stations 15 and 16 is supplied to consumer 10 l m. At the same time, part of the water goes to cooling systems 2 for rolling, outgoing roller of roller 1, winders 3 in the outlet roller table 1.

15 The rest of the water goes to the cooling systems in the section of the rolling stands of black 4 and finishing 5. At the section of the withdrawal roller table, part of the circulating water inside the Ac column of the substitution channel 7 through sump 9 is pumped through pipelines 11 to the roller cooling system 6 roll table on the rolling mill section.

25 After the equipment is cooled in the area of the rolling stands, water is collected in the substitution channel 8 and is supplied through pipelines for cleaning in sumps 12 and 13 and cooling in the cooling tower 14. The purified and cooled water is recycled.

The proposed device for water cooling of rental and equipment, allows for the connection of an independent substitution channel in the section of the cooling system of the rental through a sump and pump with a roller cooling system.

Q roller tables in the rolling mill area use for the cooling of the rollers warmer water after cooling the rolled stock (on the order of 35-45 ° C) compared to the water entering

35

45

50

after cooling in a cooling tower (13-23 s). This, in turn, leads to higher wear resistance of the roller of the live rolls (approximately 20%), and consequently, to a reduction in operating costs.

Proofreader E. Sirohman

Claims (1)

DEVICE FOR WATER COOLING OF RENTAL II EQUIPMENT OF THE MILL, mainly sheet-rolling workshops, including a reverse cycle of water supply for contaminated water, consisting of a cooling system for rolling stock and cooling devices of the equipment in the section of rough and finishing stands of the mill, connected through substitution channels, pipelines and pump station with a cleaning system and water cooling, it is noteworthy that, in order to reduce operating costs while increasing the wear resistance of the roller conveyors on the site rolling stands, the substanostic channel in the section of the rolling cooling system is independent · <5, and the output of this substitution channel is connected by a pipe equipped with a sump and a pump with a cooling system for live rolls in the section of the stands!