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Urea-based compound fertilizer not containing filling material

A technology of urea-based compound fertilizer and urea, which is applied in the direction of urea compound fertilizer, fertilizer mixture, nitrogen fertilizer, etc. It can solve the problems of poor appearance quality and poor water solubility, and achieve the effect of qualified product quality, good water solubility and simple processing technology

Active Publication Date: 2009-10-14
HUBEI NEWYANGFENG FERTILIZER STOCK
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of additive-free urea-based compound fertilizer for the current produced agricultural urea-based compound fertilizers with fillers added, poor appearance quality and poor water solubility. It consists of urea, ammonium chloride, Monoammonium phosphate, potassium chloride, and ammonium bicarbonate are composed, and the formula in parts by weight is:

Method used

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Embodiment Construction

[0012] Get 250 kilograms of urea containing 46% of N content, 3730 kilograms of ammonium chloride containing 23.5% of N content, containing P 2 o 5 58% monoammonium phosphate 3750 kg with K 2 2420 kilograms of potassium chloride of O 60%, 500 kilograms of ammonium bicarbonate containing 17% of N content, after putting into mixer and mixing thoroughly, enter granulator to granulate. The process index control of the production of this urea-based compound fertilizer: 1. When feeding the table: 20 tons / hour; 2. The air volume of the drying induced draft fan is more than 45,000 cubic meters / hour; 3. The inlet temperature of the dryer is 180-240 ℃ , to ensure that the tail temperature of the dryer is above 63°C; 4. The steam pressure of the granulator is above 1.0MPa.

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Abstract

A urea-based compound fertilizer without additive comprises urea, ammonium chloride, monoammonium phosphate, potassium chloride and ammonium bicarbonate, and the weight part proportion is urea 2.5 whose N content is 46%, ammonium chloride 37.3 whose N content is 23.5%, monoammonium phosphate 37.5 whose P2O5 content is 58%, potassium chloride 24.2 whose K2O content is 60%, ammonium bicarbonate 5 whose N content is 17%. The invention has the advantages of good appearance quality and good water-solubility due to not charging filler in the urea-based compound fertilizer. The production cost is only 1740 Yuan / t, which saves 100 Yuan / t in contrast to the urea-based compound fertilizer charged by filler. Simultaneously, the product quality is eligible, and the manufacturing technique is simple through pelleting only after mixing raw materials.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers. Background technique [0002] At present, the known N.P.K content is 16-16-16 compound fertilizer. In order to reduce the production cost, fillers such as white clay and Guanyin soil are added to its production formula. For example, the original formula produced by our factory is: [0003] Urea with 46% N content 20.5 Ammonium chloride with 23.5% N content 6 [0004] Contains P 2 o 5 58% Monoammonium Phosphate 37.5 K 2 O 60% KCl 24.2 [0005] Fillers 12.8. [0006] The production cost of its compound fertilizer is 1840 yuan / ton. Moreover, due to the addition of fillers, the appearance quality is poor and the water solubility is poor. Contents of the invention [0007] The purpose of the present invention is to provide a kind of additive-free urea-based compound fertilizer for the current produced agricultural urea-based compound fertilizers with fillers added, poor appearance qua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05C9/00C05C3/00C05D1/02
Inventor 解明权郭武松刘德勤
Owner HUBEI NEWYANGFENG FERTILIZER STOCK
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