CN203657522U - Dust exhaust device of intermediate frequency furnace - Google Patents

Abstract

The utility model relates to the industrial steelmaking equipment filed, in particular to a dust exhaust device of an intermediate frequency furnace. The dust exhaust device of the intermediate frequency furnace comprises a steel ladle, a dust exhaust hood, a dust exhaust pipeline, an underground pipeline, an air distribution cooling device and a dust remover, and is characterized in that a trolley with a sliding rail is arranged on the ground on one side of the steel ladle, a dust exhaust pipeline and a lifting device are arranged on the trolley, the lifting device comprises a strut, a connection rod and an oil cylinder, the lower end of the strut is fixedly connected with the trolley, the upper end of the strut is hinged with the connection rod through a hinged shaft, one end of the connection rod is hinged with the dust exhaust pipeline, the other end of the connection rod is hinged with the trolley through an oil cylinder, a dust outlet at the lower end of the dust exhaust pipeline is matched with an opening of the underground pipeline after passing through the end face of the trolley, the upper end of the dust exhaust pipeline is connected with the dust exhaust hood, the oil cylinder is arranged at the rear end of the dust exhaust hood, one end of the oil cylinder is hinged with the dust exhaust hood, and the other end of the oil cylinder is connected with the trolley. By adopting the structure, the dust exhaust device of the intermediate frequency furnace has the advantages of being reasonable in structure and convenient to operate, saving space, saving raw material, reducing equipment cost, exhausting dust thoroughly, reducing atmospheric pollution, having multiple functions and the like.

Description

The dust arrester of intermediate frequency furnace

Technical field

The utility model relates to industrial steelmaking equipment field, specifically a kind of a tractor serves several purposes, dedusting thoroughly, be conducive to the dust arrester of the intermediate frequency furnace of environmental protection.

Background technology

At present, steel mill is smelted the steel-making of intermediate frequency furnace that adopt more, intermediate frequency furnace adopts 200-2500Hz intermediate frequency power supply to carry out eddy-current heating, melting insulation, be mainly used in melting carbon steel, steel alloy, special steel, also can be used for copper, the melting of the non-ferrous metals such as aluminium and temperature raising, equipment volume is little, lightweight, efficiency is high, little power consumption, fusing quick heating, furnace temperature is easy to control, production efficiency is high, foundry ladle is in steel mill, Foundry Works is at open hearth, in melt pit before electric furnace or converter, accept molten steel, carry out pouring practice, it mainly contains fusing, reduction, oxidation, the production links such as slag making tapping, the ladle that intermediate frequency furnace is aimed at fusing molten steel in melt pit is poured into a mould, in order to improve the quality of spheroidal graphite cast-iron, the ability of anti-interference element is strengthened, nodularization is difficult for decline, the content of MgO is low, generally place rare-earth nodularizer in ladle bottom, agent or desulfurizing agent remove slag, in employing bag, pouring method pours into a mould, when cast due to reduction and oxidizing process in emit a large amount of black and white graininess flue dust, the main component of flue dust comprises SiO2, FeO, Fe2O3, MnO, Al2O3, CaO, MgO, C, the noxious material such as S and P2O5, and the real density of its flue dust reaches 4.45 thousand grams/cc, bulk density reaches 1.36 grams/cc, temperature is high, dust content is large, cause great atmospheric heat to pollute and dust pollution to environment, bring great harm to field personnel healthy, in order effectively to trap flue dust, also to consider structure and the use state of steel ladle simultaneously, some producers are provided with horizontal dust excluding hood on the ground of ladle melt pit one side of each different tonnages, dust excluding hood rear end is provided with cleaning shaft, dust excluding hood is connected with underground piping through cleaning shaft, underground piping is provided with air distribution cooling device and deduster, its deficiency: the one, due to the high-temperature flue gas producing upwards drift naturally, flue dust laterally aspirates, the recovery of flue gas is not thorough, disperse is in air greatly, cause atmospheric heat to pollute and dust pollution, the 2nd, this structure usage space is larger, the 3rd, waste raw material, increase equipment cost, some producers side in each ladle melt pit is provided with roller shutter type arc dust excluding hood, opposite side is provided with cleaning shaft, in the middle of dust excluding hood, be provided with the movable passageway of the steel wire rope of lifting ladle, its deficiency: the one, melt pit is large and dark, the 2nd, equipment cost is high, the 3rd, and the distance of intermediate frequency furnace and ladle increases, and easily causes the splash of molten iron etc., the manufacturer also having is according to the ladle of different tonnages, on the ground of melt pit one side, be provided with the sliding dust excluding hood matching with its size, cleaning shaft is located at ladle melt pit inner side, dust excluding hood takes the shape of the letter U, dust excluding hood periphery is crowded around by the baffle plate perpendicular to end face, its deficiency is: occupied ground is large, wasting space.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, easy to operate, save space, economize in raw materials, reduce equipment cost, dedusting thoroughly, reduce the dust arrester of atmosphere pollution and intermediate frequency furnace that can a tractor serves several purposes.

The utility model solves the technical scheme that its technical problem adopts:

A kind of dust arrester of intermediate frequency furnace, comprise dust excluding hood, cleaning shaft, underground piping, air distribution cooling device and deduster, dust excluding hood lower surface periphery is through crowding around perpendicular to the baffle plate of end face, the ground that it is characterized in that steel ladle one side is provided with the chassis with slide rail, chassis is provided with cleaning shaft and lowering or hoisting gear, lowering or hoisting gear comprises pole, connecting rod and oil cylinder, pole lower end is fixedly connected with chassis, upper end is hinged through hinge and connecting rod, connecting rod one end and cleaning shaft are hinged, the other end is hinged through oil cylinder and chassis, the dust mouth of cleaning shaft lower end is passed through chassis end face and is matched with buried pipe road junction, upper end is connected with dust excluding hood, dust excluding hood end face is " Y " shape, be conducive to dust excluding hood the high-temperature steam of ascension is sucked to cleaning shaft, by the cylinder action in lowering or hoisting gear, the cleaning shaft of the connecting rod other end can move up and down, in the time of needs dust suction, dust mouth and the underground piping of cleaning shaft socket-connect, by deduster, high-temperature steam is sucked to underground piping, dust suction is complete, lowering or hoisting gear rises cleaning shaft leave underground piping, again chassis is slided into another steel ladle that needs dedusting and carry out dust suction processing, reach a tractor serves several purposes, save space, reduce equipment cost, dedusting is object thoroughly.

Dust excluding hood rear end in the utility model is provided with oil cylinder, and oil cylinder one end and dust excluding hood are hinged, and the other end is connected with chassis, when dust suction, by cylinder action, dust excluding hood is covered on to the top of steel ladle, dust suction is complete, by cylinder action, dust excluding hood is started again, reach the object of convenient lifting.

Chassis in the utility model is to be made up of the pulley of supporting surface and supporting surface lower end, in the middle of supporting surface, is provided with dead slot, is beneficial to cleaning shaft and moves up and down.

Cleaning shaft suction port in the utility model is constant slope, reaches dedusting object thoroughly.

The utility model is owing to adopting said structure, have rational in infrastructure, easy to operate, save space, economize in raw materials, reduce equipment cost, dedusting thoroughly, reduce atmosphere pollution and can a tractor serves several purposes etc. advantage.

accompanying drawing explanation

Fig. 1 is the structural representation of the utility model front view.

Fig. 2 is the structural representation of the utility model top view.

Reference numeral: steel ladle 1, dust excluding hood 2, cleaning shaft 3, underground piping 4, air distribution cooling device 5, deduster 6, slide rail 7, chassis 8, pole 9, connecting rod 10, oil cylinder 11, dust mouth 12, oil cylinder 13, suction port 14

The specific embodiment:

Below in conjunction with accompanying drawing, the utility model is further illustrated:

A kind of dust arrester of intermediate frequency furnace, comprise dust excluding hood 2, cleaning shaft 3, underground piping 4, air distribution cooling device 5 and deduster 6, underground piping 4, structure and the annexation of air distribution cooling device 5 and deduster 6 are same as the prior art, this does not repeat, lower surface periphery is through crowding around perpendicular to the baffle plate of end face, be conducive to dust excluding hood 2 high-temperature steam of ascension is sucked to cleaning shaft 3, the ground that it is characterized in that steel ladle 1 one sides is provided with the chassis 8 with slide rail 7, chassis 8 is provided with cleaning shaft 3 and lowering or hoisting gear, lowering or hoisting gear comprises pole 9, connecting rod 10 and oil cylinder 11, pole 9 lower ends are fixedly connected with chassis 8, upper end is hinged through hinge and connecting rod 10, connecting rod 10 one end and cleaning shaft 3 are hinged, the other end is hinged through oil cylinder 11 and chassis 8, the dust mouth 12 of cleaning shaft 3 lower ends is passed through chassis 8 end faces and is matched with 4 mouthfuls of underground pipings, upper end is connected with dust excluding hood 2, dust excluding hood 2 end faces are " Y " shape, move by the oil cylinder 11 in lowering or hoisting gear, the cleaning shaft 3 of connecting rod 10 other ends can move up and down, in the time of needs dust suction, dust mouth 12 and the underground piping 4 of cleaning shaft 3 socket-connect, by deduster 6, high-temperature steam is sucked to underground piping 4, dust suction is complete, lowering or hoisting gear rises and leaves underground piping 4 by cleaning shaft 3, again chassis 8 is slided into another steel ladle that needs dedusting and carry out dust suction processing, reach a tractor serves several purposes, save space, reduce equipment cost, dedusting is object thoroughly.Dust excluding hood 2 rear ends in the utility model are provided with oil cylinder 13, and oil cylinder 13 one end and dust excluding hood 2 are hinged, and the other end is connected with chassis 8, when dust suction, move by oil cylinder 13, dust excluding hood 2 is covered on to the top of steel ladle, dust suction is complete, move by oil cylinder 13 again, dust excluding hood 2 is started, reach the object of convenient lifting, the chassis 8 in the utility model is to be made up of the pulley of supporting surface and supporting surface lower end, in the middle of supporting surface, be provided with dead slot, be beneficial to cleaning shaft 3 and move up and down.Cleaning shaft 3 suction ports 14 in the utility model are constant slope, reach dedusting object thoroughly, when the utility model uses, can be by chassis 8 along slide rail 7 slippages to steel ladle 1 one sides of accepting molten steel, adjust lowering or hoisting gear, cleaning shaft 3 dust mouths 12 are aligned to underground piping 4 import sockets, adjust again oil cylinder 13, make dust excluding hood 2 cover on steel ladle 1 top, due to the negative pressure of cleaning shaft 3, the underground piping 4 that high-temperature steam was drawn and be inhaled in cleaning shaft 3 lower ends by dust excluding hood 2 is processed, dedusting is complete, adjust oil cylinder 13, dust excluding hood 2 is started, convenient lifting steel ladle 1, adjust lowering or hoisting gear cleaning shaft 3 is risen and leave underground piping 4, again chassis 8 is slided into another steel ladle 1 that needs dedusting and carry out dust removal process, the utility model is owing to adopting said structure, have rational in infrastructure, easy to operate, save space, economize in raw materials, reduce equipment cost, dedusting is thorough, reduce the advantage such as atmosphere pollution and energy a tractor serves several purposes.

Claims (4)

1. the dust arrester of an intermediate frequency furnace, comprise steel ladle, dust excluding hood, cleaning shaft, underground piping, air distribution cooling device and deduster, lower surface periphery is through crowding around perpendicular to the baffle plate of end face, the ground that it is characterized in that steel ladle one side is provided with the chassis with slide rail, chassis is provided with cleaning shaft and lowering or hoisting gear, lowering or hoisting gear comprises pole, connecting rod and oil cylinder, pole lower end is fixedly connected with chassis, upper end is hinged through hinge and connecting rod, connecting rod one end and cleaning shaft are hinged, the other end is hinged through oil cylinder and chassis, the dust mouth of cleaning shaft lower end is passed through chassis end face and is matched with buried pipe road junction, upper end is connected with dust excluding hood, dust excluding hood end face is " Y " shape.

2. the dust arrester of a kind of intermediate frequency furnace according to claim 1, is characterized in that dust excluding hood rear end is provided with oil cylinder, and oil cylinder one end and dust excluding hood are hinged, and the other end is connected with chassis.

3. the dust arrester of a kind of intermediate frequency furnace according to claim 1, is characterized in that chassis is to be made up of the pulley of supporting surface and supporting surface lower end, is provided with dead slot in the middle of supporting surface.

4. the dust arrester of a kind of intermediate frequency furnace according to claim 1, is characterized in that cleaning shaft suction port is constant slope.

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