A continuous ammonia production system
A technology of ammonia water and production process, applied in the direction of ammonia compound, ammonia preparation/separation, inorganic chemistry, etc., can solve the problems of low energy efficiency and slow production, achieve low production cost, reduce equipment energy consumption, and ensure production safety Effect
Active Publication Date: 2018-08-03
江苏中德电子材料科技有限公司
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Problems solved by technology
[0004] However, the existing ammonia water preparation systems widely have the defects of slow production and low energy efficiency, especially for the production of ammonia water with higher purity and precise concentration
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Embodiment Construction
[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0016] Such as figure 1 As shown, the ammonia water continuous production system in this embodiment includes a liquid ammonia raw material storage tank 1, a pre-washing tower 2, a two-stage washing tower 3, two-stage absorption towers 5, 6, a heat exchanger 11 and an exhaust gas The absorption tower 12 and the chiller 15 are provided with a gas-liquid separation filter between the two-stage washing tower and the two-stage absorption tower. The two-stage washing towers 3 are independently equipped with washing pumps 4, and the washing pumps 4 are connected to the corresponding washing towers 3 through circulation pipelines to realize the circulation of materials in the washing towers 3.
[0017] An absorption tank is arranged under the two-stage absorption towers 5 and 6: the first absorption tank 7 is respectively connected to the two-stage a...
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Abstract
The invention relates to a continuous production system for ammonium hydroxide. The continuous production system comprises a liquid ammonia raw material storage tank, a prewashing tower, a two-stage washing tower, a two-stage absorbing tower, a heat exchanger, a tail gas absorber and a water cooling machine, wherein two absorbing tanks are arranged under the two-stage absorbing tower and are respectively connected with the two-stage washing tower through the pipelines with valves; a first absorbing tank and a second absorbing tank can realize synchronous or alternate operation by opening or closing the valves on the pipelines; a circulating pump and an end product pump are arranged at the discharging ports of the two absorbing tanks; an inlet of the circulating pump is respectively connected with the two absorbing tanks through the pipelines with the valves; an outlet of the circulating pump is respectively connected with the heat exchanger and an end product tank through the pipelines with valves; the end product pump and the inlet of the end product pump are respectively connected with the two absorbing tanks through the pipelines with the valves; the alternate operation of the end product pump and the circulating pump can be realized by opening and closing the valve. The continuous production system for ammonium hydroxide has the advantages of simple production process, high production safety, high product purity, high conversion rate and low production cost.
Description
technical field [0001] The invention belongs to an ammonia water production system, in particular to an energy-saving and continuous ammonia water production system. Background technique [0002] Ammonia water is widely used in agriculture, industry, military and other fields. At present, domestic ammonia water preparation equipment is divided into industrial ammonia water, electronic grade ammonia water, and reagent grade ammonia water preparation equipment. Various grades of ammonia water, and most of the equipment can only prepare industrial-grade ammonia water, but cannot prepare ultra-clean and high-purity ammonia water. [0003] The invention patent application with the publication number CN105293523A discloses a continuous preparation method for the raw material ammonia water produced by the ketazine method of hydrazine hydrate, through the gasification of liquid ammonia, absorption and secondary absorption to continuously prepare ammonia water with a stable concentra...
Claims
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IPC IPC(8): C01C1/02
CPCC01C1/022C01C1/024C01P2006/80
Inventor 戈烨铭谢国彤
Owner 江苏中德电子材料科技有限公司