Galvanization flue gas waste heat recovery system
A flue gas waste heat and flue gas technology, applied in waste heat treatment, hot-dip coating process, lighting and heating equipment, etc., can solve the problems of increasing energy consumption, increasing investment, etc., to reduce zinc explosion, save heat energy use, save energy effect
Inactive Publication Date: 2016-12-14
TONGXIANG TIESHENG LINE EQUIP
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Problems solved by technology
For hot-dip galvanizing pre-treatment and post-treatment heating of hot water and various chemical solutions, most manufacturers use steam or electric heating, which not only increases energy consumption, but also requires a certain increase in investment
Method used
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Embodiment 1
[0012] Embodiment 1: as figure 1 Shown: a galvanized flue gas waste heat recovery system, including flue gas flue 1, pickling device 2, water washing device 3, assisting plating device 4, galvanizing device 5, the pickling device, water washing device, assisting The outer side of the plating device and the galvanizing device is provided with a thermal insulation chamber 6, and the flue gas pipeline is provided with a tank body 7 filled with water, one side of the tank body is provided with an air inlet pipe 8, and the other side is provided with an exhaust pipe 9, and the tank body There are also a plurality of air guide elbows 10 inside the body, the two ends of the air guide elbows are brought together and communicated with the intake pipe and the exhaust pipe respectively, and a water outlet pipe 11 is provided on one side of the tank body. The water outlet pipeline is connected to the hot water tank, and the hot water tank is connected to the pump body 13, and the pump bod...
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The invention discloses a galvanization flue gas waste heat recovery system. The galvanization flue gas waste heat recovery system comprises a flue gas duct, an acid pickling device, a water washing device, a galvanization assistant device and a galvanization device. Heat preservation chambers are arranged outside the acid pickling device, the water washing device, the galvanization assistant device and the galvanization device. A tank containing water is arranged inside the flue gas duct, a gas inlet pipe is arranged on one side of the tank, and a gas exhaust pipe is arranged on the other side of the tank. A plurality of gas guide bent pipes are further arranged inside the tank. One ends of the gas guide bent pipes gather together and communicate with the gas inlet pipe, and the other ends of the gas guide bent pipes gather together and communicate with the gas exhaust pipe. A water outlet pipeline is arranged on one side of the tank and connected with a hot water tank. The hot water tank is connected with a pump body, and the pump body is connected with heat exchangers arranged at the two ends of the galvanization assistant device and heat exchangers arranged at the two ends of the galvanization device. Waste heat resources are used for heating galvanization assistant liquid and galvanization liquid, so that a part to be galvanized is subjected to fast preimpregnation treatment, has high adhesive capacity and achieves fast surface drying. In this way, when the part to be galvanized is put into a zinc pot, the phenomena such as zinc explosion are greatly reduced, and meanwhile energy can be saved.
Description
technical field [0001] The invention relates to the technical field of hot-dip galvanizing, in particular to a system for recovering and utilizing waste heat of galvanizing flue gas. Background technique [0002] Galvanizing refers to a surface treatment technology that coats a layer of zinc on the surface of metal, alloy or other materials for aesthetics and anti-rust effects. The main method used is hot-dip galvanizing. Hot-dip galvanizing is a process technology in which steel, stainless steel, cast iron and other metals are immersed in molten liquid metal or alloy to obtain a coating. Hot-dip galvanizing is the most widely used steel surface treatment method with the best cost performance in the world today. For hot-dip galvanizing pre-treatment and post-treatment heating of hot water and various chemical solutions, most manufacturers use steam or electric heating, which not only increases energy consumption, but also requires a certain increase in investment. Accordin...
Claims
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IPC IPC(8): C23C2/06F27D17/00
CPCC23C2/003C23C2/06F27D17/004Y02P10/25
Inventor 沈洪卫
Owner TONGXIANG TIESHENG LINE EQUIP