Shell-and-plate blast furnace evaporation air cooling system using soft water closed recirculation cooling system and plate scale treatment method thereof

A circulating cooling system, soft water sealing technology, applied in water shower coolers, direct contact heat exchangers, energy industry, etc., can solve problems such as incomplete treatment of board scale, short service life of fan motors, etc., to achieve greater Continuous operation time and service life, reduction of total installed capacity and production cost, and thorough treatment effect

Active Publication Date: 2017-02-15
安徽马钢输送设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems in the prior art of the plate-shell blast furnace evaporative air cooling system using a soft water closed circulation cooling system, the service life of the fan motor is not long and the plate scale is not completely treated, the present invention provides a soft water closed circulation cooling system. Evaporative Air Cooling System of Plate and Shell Blast Furnace and Its Scale Treatment Method

Method used

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  • Shell-and-plate blast furnace evaporation air cooling system using soft water closed recirculation cooling system and plate scale treatment method thereof
  • Shell-and-plate blast furnace evaporation air cooling system using soft water closed recirculation cooling system and plate scale treatment method thereof
  • Shell-and-plate blast furnace evaporation air cooling system using soft water closed recirculation cooling system and plate scale treatment method thereof

Examples

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Effect test

Embodiment 1

[0047] A steel plant 2 4000m 3 Blast furnace staves and hot blast stoves adopt a soft water closed circulation cooling system. The two blast furnaces use a total of 38 plate-shell blast furnace evaporative air cooling systems using a soft water closed circulation cooling system in this embodiment, which are operated in parallel. The soft water closed circulation cooling system used in this embodiment The systematic plate-and-shell type blast furnace evaporative air cooling system includes a base 1 of 3m*9m, a shell 2 fixedly connected to each other directly above the base 1, and a vertically layered cooling plate bundle set 21 fixedly installed inside the shell 2, The cooling plate bundle 21 communicates with the soft water system of the blast furnace through the cooling water inlet 23 and the cooling water outlet 22. The cooling water inlet 23 and the cooling water outlet 22 are opposite to each other on both sides of the cooling plate bundle 21, and the cooling water inlet is...

Embodiment 2

[0050] The plate-shell type blast furnace evaporative air-cooling system adopting soft water closed cycle cooling system in this embodiment has the same basic structure as that in Embodiment 1, the difference and improvement are: there are 5 hyperbolic cooling towers with a height of 4 meters, and the outer walls are evenly and fixedly distributed There are reinforcing ribs 31 to fasten and stabilize the cooling tower, and the inner wall is evenly fixed with water retaining sheets 32, which condense part of the water and drip back to the system to prevent excessive water discharge from causing waste of water resources. The water baffle 32 is ring-shaped, and is in the shape of a trumpet that is inclined downward and open, which does not affect the formation of wind eddies, and effectively prevents the excessive discharge of water. like image 3 , 4 As shown, a descaling device 6 is also included, and the descaling device 6 includes two brackets 63, the upper platform of each ...

Embodiment 3

[0062] The plate and shell type blast furnace evaporative air cooling system adopting soft water closed circulation cooling system in this embodiment has the same basic structure and descaling method as in embodiment 2, the differences and improvements are as follows: figure 1 , 2 , shown in 5 and 6, the hyperbolic cooling tower has 3, and height is 6 meters, also comprises the blower fan 5 that is fixed on the side of base 1, and described base 1 is the semi-closed shape of top opening, and the bottom is a spray pool, and On the opposite side of the blower 5, there is a spray outlet 41 connected to the spray device 4 through a pipeline. The spray device 4 is arranged on the inner side of the upper part of the housing 1, and a spray port is evenly opened downward, and the spray port has no dead angle. Covered directly above the cooling plate bundle set 21; the blower is placed under the type and blows inward, without hot and humid air eroding the insulation of the motor and ru...

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Abstract

The invention discloses a shell-and-plate blast furnace evaporation air cooling system using a soft water closed recirculation cooling system and a plate scale treatment method thereof and belongs to the technical field of blast furnace iron making production. The shell-and-plate blast furnace vaporation air cooling system using the soft water closed recirculation cooling system comprises a base, a shell body which is over the base and is fixedly connected with the base, a cooling plate set which is a vertical layered layout is arranged in the shell body in a fixation mode, and induced air cooling towers which are connected with the shell body in a fixation mode and right above the shell body. Through replacing an induced air motor with an air suction function with the induced air cooling towers, installed gross and production running cost are lowered, there is no need to frequently change and maintain a soggy and fragile fan motor, and the induced air cooling towers are capable of being at a normal working state for a long time and saves electric energy and water consumption of refrigerant water. Physical descaling can be conducted periodically in the whole operational process of the system through the plate scale treatment method, and also thorough descaling can be conducted in a stopping process. The induced air cooling towers are flexible and mobile and through in treatment effect. The heat exchange and cooling effects of the whole system are improved, and the continuous working period and service life are prolonged.

Description

technical field [0001] The invention relates to the technical field of blast furnace ironmaking production, in particular to a plate and shell type blast furnace evaporative air cooling system adopting a soft water closed circulation cooling system and a plate scale treatment method thereof. Background technique [0002] The main feature of the evaporative air cooler is to use the evaporation of the water film outside the tube to enhance the heat transfer outside the tube. Its working process is to use the circulating water pump in the system to deliver the spray cooling water to the spray water distributor located above the horizontally placed light tube bundle. , the distributor sprays the cooling water down to the surface of the heat transfer tube, so that the outer surface of the tube forms a continuous and uniform thin water film; at the same time, the air is sucked from the air suction window at the lower part of the equipment by the fan, so that the air flows from bott...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D5/02F28F25/10F28G1/02F28G9/00
CPCF28D5/02F28F25/10F28G1/02F28G9/00Y02P80/10
Inventor 廖海欧李春江张永丰刘宏兵朱俊山尹宵峰
Owner 安徽马钢输送设备制造有限公司
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