Blasting device of smelting furnace

Abstract

The invention discloses a blasting device of a smelting furnace. The device comprises an air passage, an air inlet pipe, a plug, a pneumatic cylinder and a pneumatic cylinder controller; the air passage is formed in the furnace wall of the smelting furnace, an outlet of the air passage is communicated with a hearth of the smelting furnace, and an inlet of the air passage is communicated with the outside of the smelting furnace; an air inlet of the air inlet pipe is communicated with a wind source, and an air outlet of the air inlet pipe is arranged in the furnace wall of the smelting furnace and communicated with the air passage; the plug is arranged in the air passage and behind the air inlet of the air inlet pipe; the pneumatic cylinder is fixed at an inlet of the air passage, a piston rod of the pneumatic cylinder extends into the air passage, the piston rod of the pneumatic cylinder is fixedly connected with the plug, the piston rod of the pneumatic cylinder blocks an outlet of theair passage when stretching out, and an air outlet of the air inlet pipe is communicated with the hearth of the smelting furnace through the air passage when the piston of the pneumatic cylinder retracts; the pneumatic cylinder controller comprises an inductor and a control switch, the inductor is arranged in the air inlet pipe and electrically connected with the control switch; the control switch is electrically connected to a power source and the pneumatic cylinder respectively.

Description

technical field [0001] The invention relates to a smelting process equipment, in particular to a blast device for a smelting furnace. Background technique [0002] At present, the smelting furnaces used in the smelting process are all equipped with blast pipes, which pass through the furnace wall and communicate with the furnace for blowing. When the air supply system fails due to sudden power failure, failure, protection or misoperation When the pressure is high, accidents such as blockage of the air inlet and leakage of the melt from the air inlet often occur due to the failure of the operator to deal with it in time. Blockage of the air inlet requires shutdown and dredging, delaying production and high maintenance costs. When the solution leaks seriously, the leaked high-temperature solution will cause chain accidents such as equipment damage, fire and explosion, which is unsafe. [0003] In view of the sudden and uncertain loss of pressure in the air supply system, it ...

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Problems solved by technology

[0002] At present, the smelting furnaces used in the smelting process are all equipped with blast pipes, which pass through the furnace wall and communicate with the furnace for blowing. When the air supply system fails due to sudden power failure, failure, protection or misoperation When the pressure is high, accidents such as blockage of the air inlet and leakage of the melt from the air inlet often occur due to the failure of the operator to deal with it in time.

Blockage of the air inlet requires shutdown and dredging, delaying production and high maintenance costs

When the solution leaks seriously, the lea

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