Ammoxidation reaction device for dilute nitric acid processing
A technology of ammonia oxidation reaction and dilute nitric acid, which is applied in the direction of nitric oxide, nitrogen dioxide, nitrogen oxides/oxyacids, etc., can solve the problems of resource waste, improve work efficiency, improve production efficiency, and realize recycling Effect
Inactive Publication Date: 2021-06-11
宁夏润夏能源化工有限公司
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Problems solved by technology
[0005] Aiming at the deficiencies of the prior art, the present invention provides an ammonium oxidation reaction device for dilute nitric acid processing, which solves certain defects in the structural design of the current existing ammoxidation reaction equipment, which will generate a large amount of heat and NO and NO 2 , many reaction equipments have built-in collection and utilization of the generated heat, resulting in the waste of resources
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[0034] Such as Figure 1-6 As shown, the embodiment of the present invention provides an ammoxidation reaction device for dilute nitric acid processing, including a combustion chamber 1, a waste heat boiler 2 is arranged on the top of the combustion chamber 1, and a main intake pipe 3 is arranged on one side of the combustion chamber 1, and the main intake pipe 3 A manual safety valve 4 is installed in the middle section of the main air intake pipe 3. By installing a manual safety valve 4 in the middle section of the main air intake pipe 3, the manual safety valve 4 can be used to quickly block the gas flow inside the main air intake pipe 3 when the automatic control system fails. , so as to play a certain role in safety protection;
[0035] A seal maintenance mechanism 5 is installed at the center of the front end of the combustion chamber 1;
[0036] The center of the combustion chamber 1 is provided with a combustion reaction module 6, and the bottom of one side of the out...
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The invention provides an ammoxidation reaction device for dilute nitric acid processing, and relates to the technical field of ammoxidation reaction devices. The ammoxidation reaction device for dilute nitric acid processing comprises a combustion chamber, wherein the top of the combustion chamber is provided with a waste heat boiler, one side of the combustion chamber is provided with a main gas feeding pipe; the middle section of the main gas feeding pipe is provided with a manual safety valve; a combustion reaction module is arranged in the center of the combustion chamber; an asbestos net rack corresponding to the waste heat boiler is installed in the center of the top of the combustion chamber; an exhaust pipe corresponding to the combustion reaction module is installed on one side of the top of the outer wall of the combustion chamber; and a gas adding module is installed on the top of the outer wall of the exhaust pipe. By designing the waste heat boiler, effective utilization of waste heat after ammonia oxygen combustion can be achieved, and cyclic utilization of resources is effectively achieved; by designing the gas adding module, the speed that nitric oxide is oxidized into nitrogen dioxide after making contact with air is increased, the preparation efficiency of nitrogen dioxide is improved, the working efficiency is greatly improved, and the device is worthy of being vigorously popularized.
Description
technical field [0001] The invention relates to the technical field of ammoxidation reaction devices, in particular to an ammoxidation reaction device for dilute nitric acid processing. Background technique [0002] The molecular formula of nitric acid is HNO3, which is a strong oxidizing and corrosive inorganic acid. The anhydride is dinitrogen pentoxide. The acidity of nitric acid is smaller than that of sulfuric acid and hydrochloric acid (PKa=-1.3). Ionization, its dilute solution is colorless and transparent at room temperature, and its concentrated solution is brown. Nitric acid is unstable and easy to be decomposed by light. It should be stored in a dark place in a brown bottle and protected from light. It is strictly forbidden to contact with reducing agents. Nitric acid is mainly used in industry as ammonia. Oxidation production, used to manufacture fertilizers, explosives, nitrates, etc., ammoxidation reaction, also known as ammonification oxidation, the reaction p...
Claims
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IPC IPC(8): C01B21/28C01B21/36
CPCC01B21/28C01B21/262Y02P20/129
Inventor 余豹曹荣升张鑫鑫王娟刘伟
Owner 宁夏润夏能源化工有限公司