A device for producing high-nutrient monoammonium phosphate using a double-pipe reverse process
A technology of monoammonium phosphate and double-pipe reaction, applied in the field of ammonium phosphate, to achieve the effect of overcoming hysteresis, perfect functions, and stable and good equipment operation status
Active Publication Date: 2014-10-15
WENGFU (GRP) CO LTD
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[0003] After searching, there is no production equipment and method for the production of high-nutrient monoammonium phosphate by using wet-process phosphoric acid on the diammonium phosphate production device using double-pipe reverse technology in the Chinese patent database.
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[0040] An equipment for producing high-nutrient monoammonium phosphate using a double-pipe reverse process, including a concentrated phosphoric acid clarification tank 1, a pipe reverse acid tank 2, a granulator 3, tubular reactors 5 and 6, a dryer 4, and a bucket elevator , Screening machine 8, crusher 9, belt conveyor, cooling fluidized bed 14, wrapping cylinder 17, cyclone separator, dust removal fan, exhaust gas washing system;
[0041] Described tubular reactor comprises tubular reactor A5 and tubular reactor B6, and the mixing head 18 of two tubular reactors is installed in the afterbody of granulator 3, and the input pipeline of pipe anti-match acid tank 2 and liquid ammonia The input pipeline of the storage tank 19 is cut in vertical direction at the mixing head place of each tubular reactor respectively;
[0042] The granulator 3 is a rotary drum ammoniation granulator; it is supported by a central girder on which an ammoniation granulation device is installed. Exten...
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Abstract
The invention discloses a device for producing high-nutrient monoammonium phosphate by adopting a double-pipe reverse process. The device includes a concentrated phosphoric acid clarification tank, a tube-reverse acid tank, a granulator, a tubular reactor, a dryer, a bucket elevator, Screening machines, crushers, belt conveyors, cooling fluidized beds, wrapping drums, cyclone separators, dust removal fans, and tail gas washing systems; the equipment of the present invention operates stably during process switching and normal production. Acid, spray granulation, drying, screening and crushing (return material collection), cooling wrapping and other main processes to extract granular monoammonium phosphate products with uniform particle size and nutrient moisture content. The product is highly water-soluble and does not agglomerate. Stable in nature, the available phosphorus (P2O5) content is greater than 52%, and the nitrogen (N) content is greater than 11%. It is a high-quality basic raw material for preparing N, P, and K ternary compound fertilizers, and has great market competitiveness.
Description
technical field [0001] The invention relates to ammonium phosphate, in particular to a device for producing high-nutrient monoammonium phosphate by adopting a double-tube reverse process. Background technique [0002] At present, the domestic ammonium phosphate product market is seriously saturated. Improving product quality and realizing product breakthroughs and innovations are important ways to enhance the competitiveness of enterprises. To promote the multi-functionalization of devices and the diversification of product types to meet the needs of different customers, regions and seasons, It is an important means for enterprises to gain a foothold in the market and enhance their ability to resist risks in the fierce market competition. The production of monoammonium phosphate, especially the production of high-nutrient monoammonium phosphate, on the diammonium phosphate device is an in-depth exploration of the diversification of the functions of the production device. ...
Claims
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IPC IPC(8): C01B25/28
Inventor 王玉训徐春朱奉刚张良成陈德高杜秀荣赵建勇饶轶晟
Owner WENGFU (GRP) CO LTD