Straw powder-based anti-blocking agent of compound fertilizer

Abstract

The invention provides a straw powder-based anti-blocking agent of a compound fertilizer, which is prepared by mixing the following raw materials in parts by weight: 7.5-9 parts of straw powder, 0.5-5 parts of stearic acid, 0.1-1 part of stearin, 0.1-0.5 part of hydramine, 0.5-5 parts of white oil or paraffin wax and 2-15 parts of natural oil, the six components are uniformly stirred at 60-120 DEG C and then cooled to the room temperature after reaction for 5-60 minutes so that the finished-product anti-blocking agent is obtained. The main component of the straw powder-based anti-blocking agent is straw which belongs to natural biological raw material so that the straw powder-based anti-blocking agent has biodegradability and favorable environment friendliness and can be repeatedly used for a long term without resulting in adverse influences on soil, crops and farm environments. The straw powder-based anti-blocking agent has the advantages of high-efficiency and full utilization of straw resources, environmental protection, convenience for processing and high cost performance without using engine oil.

Description

【Technical field】 [0001] The invention relates to an anti-caking agent for compound fertilizer, in particular to an anti-caking agent for straw powder-based compound fertilizer. 【Background technique】 [0002] With the development of agriculture, single-nutrient fertilizers can no longer meet the market demand, and high-efficiency, multi-element and multi-variety special fertilizers, especially high-quality compound fertilizers, are becoming more and more popular. [0003] Agglomeration is a common phenomenon in the process of fertilizer production, transportation and storage, which has been plagued by the rapid development of the fertilizer industry. Caking also brings a lot of trouble to the storage, transportation and use of compound fertilizers, and seriously affects fertilizer efficiency. Correctly solving the caking problem is one of the effective ways to improve the quality and cost performance of chemical fertilizer products. Prior art shows (see Chinese patent for...

AI Technical Summary

Problems solved by technology

This method is low in cost, but has the following disadvantages: (1) large amount of dust and harsh operating environment; (2) poor anti-caking effect; (3) inert substances are difficult to decompose naturally, and are easy to accumulate in the Soil, strongly affects the soil ecological environment

Compared with dusting powder, the coating treatment is more uniform, and the effect of anti-caking of chemical fertilizers is better, especially at higher humidity, it can still maintain a certain anti-caking effect, but there are also the following shortcomings: (1) When the ambient temperature is low, the anti-caking effect is good, but when the temperature is high, the effect is not good; (2) The use of a large amount of alkane oil that is difficult to decompose naturally not only affects the water solubility of chemical fertilizers, but also pollutes the soil after repeated use (3) The cost of artificially synthesized reagent raw materials with a large proportion is relatively high, and it is easy to bring in toxic substances to pollute the soil and crops

Various types of crop straws are abundant in my country, but most of them are directly returned to the field, or used as industrial raw materials such as fuel, papermaking, feed, etc., and the utilization efficiency is very low