Heat treatment spent liquor salt recovery processing method and apparatus
A treatment method and salt recovery technology, applied in heat treatment equipment, heating water/sewage treatment, metallurgical wastewater treatment, etc., can solve the problems of waste of resources, serious pollution, and high production costs, and achieve low consumption, high degree of automation, and compact structure. Effect
Active Publication Date: 2008-11-05
GUANGDONG STRONG METAL TECH
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[0003] The first object of the present invention is to provide a method for recovering heat treatment waste liquid salt in order to overcome the shortcomings of serious pollution, waste of resources and high production cost in the existing quenching heat treatment process
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specific Embodiment 1
[0024] The heat treatment waste liquid recovery processing method comprises the following steps:
[0025] 1) Set the high liquid level and low liquid level of the salt recovery heating tank;
[0026] 2) Use the filter pump to pump the brine mixture in the quenching and cleaning tank into the salt recovery heating tank. When the brine mixture in the salt recovery heating tank reaches the set liquid level, the filter pump stops inputting liquid and sets it in the recovery heating tank The heater starts to heat up; when the temperature of the brine mixed liquid rises above 100°C, the water in the brine mixed liquid begins to evaporate into water vapor, and the water vapor is sent to the condenser to be cooled into water, and the cooled water becomes circulating water and then sent to Return to the washing machine for recycling;
[0027] 3) As the liquid in the recovery heating tank is heated at a high temperature, the water in the brine mixed liquid is gradually evaporated, and ...
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The invention relates to a recycle processing method for heat treating waste liquid salts and a device thereof. The recycle processing method for heat treating waste liquid salts comprises following steps: (1) a high liquid level and a low liquid level of a heating slot of salt recycling are set; (2) a mixed liquid of salt and water for cleaning a water slot is pumped into the heating slot of salt recycling, and when the temperature of the mixed liquid of salt and water is raised over 100 DEG C, the water in the mixed liquid evaporates into water vapor which is cooled into water and returned back into a cleaner for recycling; (3) when the liquid level decreases to the low liquid level, a salt discharging valve is opened, and salt solution enters a salt storing slot for cooling and recycling. The specialized device is characterized that the specialized device comprises the cleaning slot (1), a heating device of salt recycling (2) and a condenser (3); a water inlet end of the heating device of salt recycling is connected with the cleaning slot, an air outlet end of the heating device of salt recycling is connected with an air inlet end of the condenser, and the water outlet end of the condenser is connected with the water inlet end of the cleaning slot; a salt discharging port and a valve are arranged in the bottom of a shell, the storing slot of salt recycling is arranged under the shell. The recycle processing method for heat treating waste liquid salts and the device thereof realize non-discharging of sewage and have the advantages of saving water resource, recycling waste salts and lowering cost.
Description
technical field [0001] The invention relates to a heat treatment waste liquid salt recovery treatment method and device, which is suitable for a waste liquid recovery treatment system in the quenching heat treatment process. It belongs to the technical field of metal heat treatment equipment. Background technique [0002] Quenching is a metal heat treatment process in which a metal workpiece is heated to an appropriate temperature and maintained for a period of time, and then immersed in a quenching medium for rapid cooling. Commonly used quenching media are brine, water, mineral oil, air, etc. Quenching can improve the hardness and wear resistance of metal workpieces, so it is widely used in various tools, molds, measuring tools and parts that require surface wear resistance (such as gears, rolls, carburized parts, etc.). According to the cooling method, the quenching process is divided into four types: single liquid quenching, double medium quenching, martensite graded q...
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IPC IPC(8): C21D1/56C02F1/04C02F103/16
Inventor 董小虹陈志强王桂茂梁勇
Owner GUANGDONG STRONG METAL TECH
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