Tail gas recovery device for urea ammonium nitrate solution production

A technology for urea ammonium nitrate and tail gas recovery, which is applied to the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of pollution and large losses, and achieve the effects of reducing consumption, meeting production needs, and reducing environmental pollution
CN104208987AInactive Publication Date: 2014-12-17ANHUI WANBEI COAL REFCO GRP LTD HANSHAN HENGTAI NONMETALLIC MATERIALS BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI WANBEI COAL REFCO GRP LTD HANSHAN HENGTAI NONMETALLIC MATERIALS BRANCH
Publication Date
2014-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a tail gas recovery device for urea ammonium nitrate solution production. The tail gas recovery device for the urea ammonium nitrate solution production comprises a urea ammonium nitrate solution preparing tank, an absorbing tower, a buffer tank, a circulating pump, a cooler and an injecting pump. The absorbing tower comprises a filling support plate, a filling pressing plate, filling and a distributor; the outlet of the urea ammonium nitrate solution preparing tank is connected with the lower inlet of the side wall of the absorbing tower; the top outlet of the absorbing tower is connected with the inlet of the choke of the injecting pump; the outlet of the circulating pump is connected with the inlet of the cooler; the outlet of the coller is connected with the inlet of the upper end of the side wall of the absorbing tower through a first pipe; the first pipe is connected with a second pipe towards an acid tank, the connecting position of the first pipe and the second pipe is a node A, and the portion of the first pipe between the node A and the cooler is connected with the inlet of the other end of the injecting pump. The tail gas recovery device for the urea ammonium nitrate solution production is simple in technical design, effectively recovers gaseous ammonia in tail gas and reduces consumption and environmental pollution.
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Description

technical field

[0001] The invention belongs to the field of chemical fertilizers, in particular to a tail gas recovery device in the production of urea ammonium nitrate solution. Background technique

[0002] Urea Ammonium Nitrate solution (Urea Ammonium Nitrate solution), referred to as UAN solution, also known as nitrogen solution (N solution) abroad, is prepared from urea, ammonium nitrate and water. UAN solution is a stable, colorless, normal-pressure liquid nitrogen fertilizer, which is superior to solid nitrogen fertilizer in terms of fertilizer efficiency, energy saving, environmental pollution reduction, and economic benefits, and has broad prospects at home and abroad.

[0003] UAN production began in the United States in the 1970s and is now widely used. In 2013, the global output of urea ammonium nitrate solution exceeded 20 million tons. my country is a big producer of nitrogen fertilizer. The production equipment of UAN is in its infancy, and its application p...

Claims

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