Closed circulation spray drying system of emamectin benzoate
A drying system and salt closed technology, which is applied in the field of Adimensional salt closed cycle spray drying system, which can solve the problems of high energy consumption and the like
Pending Publication Date: 2019-04-23
无锡市林洲干燥设备有限公司
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Problems solved by technology
Because emamectin emamectin salt and solvents are toxic, the drying system of emamectin emamectin salt is a closed circulation system, which directly cools the hot air at about 105°C to about -15°C, or directly heats the cold air at about -15°C to 105°C °C, a large amount of energy is required
Method used
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Embodiment
[0038] Example: figure 1 It is a closed cycle spray drying system for emamectin benzoate disclosed by the present invention, which includes a tube heater 1 and a water chiller 2, and the tube heater 1 is sequentially connected to a drying tower 3, a cyclone separator 13, and a first bag filter 14 , high-efficiency filter 15, induced draft fan 36, waste heat recovery tower 7, condensation tower 4, solvent recovery tank 5.
[0039] Such as figure 1 As shown, the heat exchange tube of the tube heater 1 is connected to the steam source 6. When the air passes through the tube heater 1, it exchanges heat with the steam and raises the temperature to about 120°C. The hot air at about 120°C is filtered by the filter and enters the drying process. Inside the tower 3, the temperature inside the drying tower 3 is about 105°C. An atomizing nozzle 8 is arranged in the drying tower 3, and a diaphragm pump 9 connected to the atomizing nozzle 8 is arranged outside the drying tower 3. The dia...
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The invention relates to the field of drying equipment, in particular to a closed circulation spray drying system of emamectin benzoate. The closed circulation spray drying system of the emamectin benzoate is characterized in that the closed circulation spray drying system comprises a tube heater and a water chiller unit, wherein the tube heater is sequentially connected with a drying tower, a three-stage dust collector, a condensation tower and a solvent recovery tank; a heat exchange tube is connected with a steam source; both ends of the heat exchange tube of the condensation tower are connected with the water chiller unit; a waste heat recovery tower is connected between the three-stage dust collector and the condensation tower. The closed circulation spray drying system of the emamectin benzoate has the advantages of being energy-saving, achieving energy saving and emission reduction with the utilization of the waste heat recovery tower to save a large amount of steam heat and chilled water cooling capacity, taking full advantage of the cold amount of solvent in the solvent recovery tank to achieve energy saving and emission reduction with the utilization of a circulating water pump to extract the solvent in the solvent recovery tank to be sprayed on the heat exchange tube in the condensation tower, and solving the problem of easily blocking a bag when both suction and nitrogen back blowing of a bag filter are carried out at the same time with a differential pressure measuring instrument utilized together with two bag filters.
Description
technical field [0001] The invention relates to the field of drying equipment, in particular to a closed cycle spray drying system for emamectin benzoate. Background technique [0002] The full name of emamectin emamectin salt is emamectin benzoate. It is a new type of high-efficiency semi-synthetic antibiotic insecticide synthesized from the fermentation product abamectin. It has ultra-high efficiency, low toxicity, low residue, and no The characteristics of biological pesticides such as public hazards; widely used in the control of various pests on vegetables, fruit trees, cotton and other crops. [0003] At present, the preparation of emamectin benzoate needs to dissolve and oxidize methane solution, abamectin and oxidant in the oxidation kettle, then introduce the solution after the oxidation reaction into the washing kettle, stir with phosphoric acid aqueous solution to remove the impurities generated by the oxidation reaction, and then clean Precipitate for 2 hours, t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01D1/18B01D1/06B01D1/30B01D50/00F28D7/16
CPCB01D1/06B01D1/18B01D1/30F28D7/16B01D50/20Y02P70/10
Inventor 丁飞周瑞君周伟伦邓维娟
Owner 无锡市林洲干燥设备有限公司