RU1825774C - Method of production of granular organitrogen fertilizer - Google Patents

Abstract

The invention relates to methods for producing organic fertilizers widely used in rural ozgvs-Peat; they are mixed with poultry in cooi noionii (15-2): 1, the resulting mixture - / shat to a moisture content of 15-25% at a heating rate of 0.7-10 degrees / min and compacted at a pressure of 2,200 kg / cm. I intensify the process while increasing the marketable fraction 1 table

Description

The invention relates to methods for producing organic fertilizers widely used in agriculture.

The aim of the invention is to reduce the duration while increasing the yield of product fraction

Googled goal is achieved in the i enclosed method for producing granular organic fertilizer by mixing peat and litter in the ratio of (1.5-2) 1, then the resulting mixture is dried at a heating rate of 0.7-10 deg / min to a moisture content of 15 25% and after drying compacted at a pressure of 2-200 kg / cm.

A distinctive feature of the method is that peat is mixed with droppings in the ratio of (1.5-2) 1, then the resulting mixture is dried at a heating rate of 0.7-10 deg / min to a moisture content of 15-25% and compacted after drying pressure 2-200 kg / cm.

The essence of the method is as follows.

When organo-nitrogen fertilizers are obtained by mixing peat and bird droppings without phosphorus-containing com ponents, nitrogen must be connected. 45-67% Drying to accelerate the bonding of nitrogen and bypassing, a certain temperature of 40 ° C and at an oppidng / heating rate of humidity of 15 to 25% can be maintained at a specific temperature and then granulated with a pressure of 2 -200 kg / cm This allows to significantly intensify process (it takes 2-4 months to ripen the product) and increase the yield of a commodity fra with a size of 0.5-10 mm to 95-98%

The feasibility of the selected conditions is illustrated in the table.

Example 1.1t. peat (T) with a moisture content of 23% is mixed with 2.5 t of litter (P) with a moisture content of 85% at a ratio of T P 2 1 in terms of dry matter The resulting mixture with a moisture content of 67% is dried in a drum dryer at a heating rate of 0.7 deg / min

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to a moisture content of 15%. and then pressed at a pressure of 2 kg / cm. The duration of the process is 50 minutes. The output of the commercial fraction is 98%.

Example 2.1 tons of peat with a humidity of 50% are mixed with 2.5 tons of droppings with a humidity of 87% with a ratio of T: P 1.5.1 in terms of dry matter. The resulting mixture with a moisture content of 76% is dried in an apparatus with a gushing layer with a heating rate of 10 g rad / min to a moisture content of 15%, and then pressed through a perforated grate at a pressure of 30 kg / cm. The duration of the process is 30 minutes. The output of the commercial fraction is 95%.

Example 3. 1 ton of peat with a moisture content of 60% is mixed with 1 ton of litter with a humidity of 80% at a ratio of T: P - 2: 1 in terms of dry matter. The resulting mixture with a moisture content of 70% is dried in a belt dryer with

heating rate of 10 deg / min to a moisture content of 25%. and then pressed between two rotating perforated rolls at a pressure of 200 kg / cm2. The duration of the process is 20 minutes. The yield of the commercial fraction is 95%.

Claims (1)

SUMMARY OF THE INVENTION A method for producing granular organic nitrogen fertilizer, comprising mixing peat with bird droppings, drying and machining, characterized in that, in order to intensify the method while increasing the yield of the product fraction, peat is mixed with manure in the ratio (1.5 - 2) . 1. and then the prepared mixture is dried to a moisture content of 15,257 at a heating rate of 0.7 - 10 deg / min and, after drying, it is compacted at a pressure of 2-200 kg / cm