Apparatus and method for cleaning and recovering heat treatment medium
A recovery device and medium technology, which is applied in the field of heat treatment medium cleaning and recovery devices, can solve the problems of small and medium-sized enterprises, large water consumption, environmental pollution, etc., and achieve the effects of reducing production costs, convenient process operation, and reducing pollution
Inactive Publication Date: 2010-06-30
TANGSHAN YANNAN SHOVEL MAKING
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Problems solved by technology
Among them, most of the heat treatment wastewater containing salt medium contains nitrite, and direct discharge will cause serious pollution to the environment. Now when cleaning the salt medium, in order to ensure the quality of the surface of the workpiece, the process of spraying with flowing water is often used. In the process, a large amount of water resources need to be consumed, and the cost of this method of sewage treatment is high, causing a serious burden on small and medium-sized enterprises
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Referring to the accompanying drawings, the heat treatment medium cleaning and recovery device in this embodiment includes a workpiece washing device and a sewage recovery device, wherein: three rinsing tanks are arranged below the conveyor chain 2 in the workpiece washing device, all of which are primary rinsing tanks 4, 2 and 4. Level rinsing tank 5 and tertiary rinsing tank 7, spray nozzle 6 is contained in the top of tertiary rinsing tank 7. The water storage tank 9 in the sewage recovery device communicates with the three-stage rinsing tank 7, and three evaporation tanks 10 connected with the water storage tank 9 are arranged side by side with the water storage tank 9. The water storage tank 9 and the evaporation tank 10 are respectively equipped with belt The curtain frame 8 of the curtain 11. The two ends of this curtain frame 8 are aff...
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The invention relates to a heat treatment medium cleaning and reclamation device and a method thereof. A rinse tank is arranged below a conveyor chain of the device and is communicated with a water storage tank; an evaporation tank communicated with the water storage tank is arranged on one side of the water storage tank; and a shed roof is arranged outside a sewage reclamation device. The methodcomprises the following steps: sending the work pieces into the rinse tank in turn for rinsing after heat treatment; when the rinsing operation is completed, spraying and washing the work pieces; when salinity of the solution in the rinse tank is saturated, leading the solution into the water storage tank for reclamation; immersing a cloth curtain above the water storage tank into the salt solution in the water storage tank, then lifting the cloth curtain, and drying the cloth curtain in the air for natural volatilization; and when the brine in the evaporation tank begins to be crystallized, sending the solution to a crystallizer for crystallization. The cleaning and reclamation device has a simple structure and convention operation. The reclaimed medium can be reused, thereby reducing production cost, sewage treatment cost and environmental pollution. The cleaning and reclamation device is suitable for various middle and small enterprises.
Description
technical field [0001] The invention relates to a device for cleaning and recovering heat treatment medium and a process for using the device to clean and recover heat treatment salt medium, in particular to a device and method for cleaning and recovering heat treatment medium. Background technique [0002] At present, the commonly used heat treatment media in the factory include water, oil, salt, etc. When the surface of the workpiece to be treated needs to be coated with paint, plastic powder, etc., it is necessary to clean the residual heat treatment medium on the surface of the workpiece. Among them, most of the heat treatment wastewater containing salt medium contains nitrite, and direct discharge will cause serious pollution to the environment. Now when cleaning the salt medium, in order to ensure the quality of the surface of the workpiece, the process of spraying with flowing water is often used. In the process, a large amount of water resources need to be consumed, ...
Claims
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IPC IPC(8): C01B21/50
Inventor 付学文刘黎明张彩山
Owner TANGSHAN YANNAN SHOVEL MAKING