A kind of cooling system that is used for blast furnace
Technical field
The present invention relates to a kind of blast furnace cooling system, relate in particular to a kind of blast-furnace cooled water piping system.
Background technology
The blast furnace cooling apparatus is to guarantee that last furnace shell exempts from the high-temperature heat flux invasion and attack, thereby obtains the key equipment of Long Campaign Blast Furnace, and rational and effective cooling water pipeline system is the prerequisite that cooling apparatus is played a role.
The blast furnace thermal load at different heights position in process of production differs greatly.Generally speaking, furnace bottom cupola well thermal load is little, and it is little to fluctuate, and needs in the production according to blast furnace situation regulating pondage; The above regional thermal load of bosh is bigger, and it is also bigger to fluctuate, and generally needs bigger service discharge.
Blast furnace cooling water pipeline system adopts a string connecting mode to the top at present, promptly supply water to be responsible for and supply water to the blast furnace cooling apparatus through orlop water supply endless tube, by the whole from bottom to top series connection of liaison tube, the cooling apparatus draining is discharged through drain header between the body of heater cooling apparatus.This a string cooling water pipeline system water yield by every cooling apparatus on blast furnace is vertical to the top equates that it is bigger to influence each other between the cooling apparatus.If local carry out the adjusting of cooling intensity, then all cooling poweies that are in the cooling apparatus of work different heat load intensities under all can be affected, and when leaking appears in one section cooling apparatus, then whole cooling apparatus all will be subjected to the influence that service discharge fluctuates.This piping system is feasible under the stable situation of low combustion intensity, the working of a furnace, but raising along with smelting strength of blast furnace, this a string cooling water inflow that can not satisfy adjusting different sites in the blast furnace operating to push pipe road system, control the requirement of the thermal load at each position, and maintenance and difficult in maintenance.
Summary of the invention
The purpose of this invention is to provide a kind of cooling system that is used for blast furnace, can regulate cooling water inflow by cooling apparatus.
The object of the present invention is achieved like this: a kind of cooling system that is used for blast furnace, comprise the cooling apparatus, the water supply person in charge and the drain header that are provided with along the blast furnace longitudinal divisions, it is characterized in that: also comprise the water supply and sewage endless tube, the lower end that water supply is responsible for by water supply and sewage endless tube and end section cooling apparatus links, drain header links by the upper end of water supply and sewage endless tube with top section cooling apparatus, link by the water supply and sewage endless tube between each section cooling apparatus, adopt bypass pipe to connect between the water supply and sewage endless tube.The present invention can make the water coolant shunting by each section cooling apparatus by the setting of water supply and sewage endless tube and bypass pipe, reaches the purpose of regulating cooling water inflow.
Cooling water inflow for further each section of flexible cooling apparatus is provided with the water transfer valve on the bypass pipe.By the water transfer valve, can regulate the cooling water inflow of cooling apparatus different sites, thereby control the thermal load at each position.
The present invention has following beneficial effect: the present invention guarantees the water supply of each section cooling apparatus by the water supply and sewage endless tube, by the water transfer valve on the bypass pipe, cooling water inflow that can flexible cooling apparatus different sites, control the thermal load at each position, not only improved cooling efficiency, also be convenient to the maintenance and the maintenance of equipment, help prolonging the life-span of equipment.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1: embodiment of the invention structural representation.
Embodiment
Embodiment: referring to Fig. 1, a kind of cooling system that is used for blast furnace, it comprises the cooling apparatus 6 that vertically is divided into plurality of sections along blast furnace, each section cooling apparatus 6 shared 1 and drain header 5 of the person in charge that supply water, wherein the water supply person in charge 1 links by the lower end of the end section cooling apparatus in water supply and sewage endless tube 2 and the blast furnace segmentation cooling apparatus 6, drain header 5 links to each other by the upper end of the top section cooling apparatus in water supply and sewage endless tube 2 and the blast furnace segmentation cooling apparatus 6, link by water supply and sewage endless tube 2 between each section cooling apparatus 6, each section water supply and sewage endless tube 2 is by bypass pipe 3 UNICOMs, and bypass pipe 3 is provided with water transfer valve 4.