Air preheating and smoke exhausting mechanism for rotary kiln selenium distillation system
A technology of air preheating and rotary kiln, which is applied in the field of metallurgy, can solve problems such as consuming large resources, and achieve the effect of improving thermal efficiency
Inactive Publication Date: 2015-03-25
NANJING YONGLIANG FURNACE
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Problems solved by technology
[0003] The preparation of selenium by using the rotary kiln steaming selenium system consumes a lot of resources and also produces a lot of pollution. Therefore, it is very necessary to design an energy-saving and environmentally friendly flue gas treatment mechanism.
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[0014] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0015] like figure 1 , figure 2 and image 3 Shown are the structural diagrams of the front view, left view and top view of the present invention respectively. The present invention provides an air preheating and smoke exhaust mechanism for a rotary kiln selenium evaporation system, which includes a combustion-supporting fan 1 and a combustion-supporting air pipe 3 , smoke exhaust area 4, rainproof cap 9, flue gas exhaust main pipe 10, smoke exhaust area 4 is connected with flue gas exhaust main pipe 10, and the upward extension of smoke exhaust area 4 is provided with elbow 6, elbow 6 An air preheater 5 is arranged near the outer periphery of the smoke exhaust area 4, the combustion air pip...
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The invention discloses an air preheating and smoke exhausting mechanism for a rotary kiln selenium distillation system, and belongs to the technical field of metallurgy. The technical scheme is that the air preheating and smoke exhausting mechanism for the rotary kiln selenium distillation system is characterized by comprising a smoke vent area, a smoke exhausting manifold, a combustion-supporting air pipe and a combustion-supporting fan, wherein the smoke vent area is connected to the smoke exhausting manifold; an elbow is arranged on a part where the smoke vent area stretches upwards; close to the periphery of the smoke vent area, the elbow is provided with an air preheater; the combustion-supporting air pipe stretches upwards and is connected to the elbow; the combustion-supporting air pipe is connected to the combustion-supporting fan; a smoke exhausting pipe is arranged on the stretching part of the elbow; and a rain-proof hat is arranged on a part where the smoke exhausting pipe stretches upwards. The air preheating and smoke exhausting mechanism disclosed by the invention can be used for achieving beneficial effect of heating combustion-supporting air by virtue of discharged high-temperature smoke, so that waste heat is utilized, and heat efficiency is improved.
Description
technical field [0001] The invention relates to an air preheating and smoke exhaust mechanism for a selenium steaming system of a rotary kiln, belonging to the technical field of metallurgy. Background technique [0002] Selenium is one of the scattered non-metals. Crude selenium is a by-product in the copper smelting process. The growth of selenium production has been relatively slow, and the annual supply is limited. Selenium has a wide range of uses and can be used in many fields such as metallurgy, glass, ceramics, electronics, solar energy, feed, etc., and with the development of the world economy and the emergence of new application fields, the downstream demand for selenium is constantly increasing. The price of selenium is constantly rising. [0003] The preparation of selenium using the rotary kiln selenium steaming system consumes a lot of resources and produces a lot of pollution. Therefore, it is very necessary to design an energy-saving and environmentally frie...
Claims
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IPC IPC(8): C01B19/02
CPCC01B19/02Y02P20/10Y02P20/129
Inventor 蒋正龙
Owner NANJING YONGLIANG FURNACE