Lime kiln waste heat utilization device
A technology of waste heat and heat transfer oil, which is applied in the field of chemical equipment engineering, can solve the problems of high energy consumption and large exhaust gas emissions, and achieve the effects of reducing production costs, reducing exhaust pollution emissions, and improving energy utilization
Inactive Publication Date: 2016-03-23
宁夏煜林化工有限公司
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Problems solved by technology
[0004] The purpose of this utility model is to provide an energy-saving and environment-friendly production device in order to solve the problems of high energy consumption and large waste gas emissions in the dicyandiamide production project
Method used
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Effect test
Embodiment
[0018] Embodiment: Heat transfer oil in the upper combustion beam cooling box 11 and the lower combustion beam cooling box 12 of the lime kiln 1 and heat up to 240°C; open the stop valve 2, start the booster pump 4 and the circulation pump 7, and make the lime kiln waste heat utilization device The circuit is connected, and the heat transfer oil at 240°C is transported to the dicyandiamide drying bed device 3 through the pipeline. Pump into the polymerization pot coil of the dicyandiamide polymerization pot device 5 through the booster pump 4, and reduce the temperature of the heat transfer oil to 190-180°C by heating the polymerization pot; finally, guide the heat transfer oil with reduced temperature into the heat transfer oil storage tank 6. Drive through the circulation pump into the upper combustion beam cooling box 11 and the lower combustion beam cooling box 12 to continue increasing the temperature.
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The invention belongs to the field of chemical equipment and particularly relates to a lime kiln waste heat utilization device. The lime kiln waste heat utilization device comprises a lime kiln, stop valves, a dicyandiamide drying bed, a booster pump, a polymerization pot device, an oil storage tank and a circulating pump. Heat-conducting oil pipe input ports of an upper combustion beam cooling tank and a lower combustion beam cooling tank of a lime kiln are communicated with the heat-conducting oil storage tank through oil pipelines, heat-conducting oil pipe output ports of the upper combustion beam cooling tank and the lower combustion beam cooling tank are communicated with the dicyandiamide drying bed through pipelines with the stop valves, and the dicyandiamide drying bed is connected with the heat-conducting oil storage tank through a pipeline to form a loop. The circulating pump is mounted on an output pipeline of the heat-conducting oil storage tank. The lime kiln waste heat utilization device has the advantages that production cost is reduced, energy utilization rate is increased, waste gas emission is reduced, and energy saving and environment protection are achieved.
Description
technical field [0001] The utility model belongs to the field of chemical equipment engineering, in particular to a lime kiln waste heat utilization device. Background technique [0002] In the production of dicyandiamide, the factory adopts the general technology of the chemical industry, and the production process includes Fukas kiln calcination, dicyandiamide polymerization, dicyandiamide drying and other processes. The Phocas kiln needs to be cooled during the production process. The technical solution adopted is to use the heat transfer oil circulation pipe to cool down the combustion beam of the Phocas kiln, and then cool the heat transfer oil through the air-cooled radiator and the water-cooled radiator. The disadvantage is that High energy consumption and slow cooling speed of heat conduction oil. In the dicyandiamide polymerization process project, it is necessary to heat the dicyandiamide solution. The technical solution adopted is to use two 10-ton steam boilers ...
Claims
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IPC IPC(8): F27D17/00
Inventor 石少东王世红程嘉兴马金玉吕自强
Owner 宁夏煜林化工有限公司