Humic acid silicon calcium magnesium fertilizer and production method thereof

Abstract

The invention discloses a humic acid silicon calcium magnesium fertilizer and a production method thereof. The production method comprises the following steps: carrying out natural air drying on water quenching slag until the water content reaches 15-25%; milling the dried water quenching slag in a ball mill to 80-100 meshes; evenly mixing the milled powder and a humic acid raw material, of whichthe humic acid content is 75-80 wt%, in a mass ratio of 2:(1-1.5) to form a mixture A; adding adhesive, which accounts for 5-10 wt% of the mixture A, into the mixture A, and evenly mixing; granulating on a fertilizer granulator, wherein the water, which accounts for 10-15 wt% of the mixture A, is sprayed on the mixture A to form the granular fertilizer, and the granularity of the fertilizer is 2-4mm; and finally, baking to obtain the humic acid silicon calcium magnesium fertilizer. The humic acid silicon calcium magnesium fertilizer has the advantages of low production cost, high available nutrient content, high crop utilization ratio, low environmental risk and strong soil pertinence, is convenient for field application, and can be popularized and applied in crop production.

Description

Technical field: [0001] The invention belongs to the field of fertilizer manufacturing, and in particular relates to a production method for producing humic acid silicon calcium magnesium fertilizer by using ironmaking blast furnace water quenching slag and humic acid as raw materials and the humic acid silicon calcium magnesium fertilizer produced by the method. Background technique: [0002] Water-quenched slag is also called blast furnace slag. It is the waste slag formed by water-quenching and quenching blast furnace slag in the process of iron-making by iron and steel enterprises. Its main components are: SiO 2 34.9%, CaO 36.8%, Al 2 o 3 11.3%, MgO 13.2%. [0003] The use of water-quenched slag as a fertilizer has a long history in Germany. At present, the main process of using blast furnace slag to produce silicon fertilizer in Germany is: crushing the blast furnace slag to a certain particle size and applying it directly, or crushing the blast furnace slag and mi...

AI Technical Summary

Problems solved by technology

[0005] At present, the main problems in the research and development of silicon fertilizers are as follows: First, there is no granulation process in the process of making silicon fertilizers. During the application of powdered silicon fertilizers, the dust phenomenon is serious, and the dust sticks to the plants, and its alkaline substances cause damage to the plants. harm

Second, since the silicon fertilizer produced directly from water slag is alkaline, it is easy to cause nitrogen fertilizer to be converted into ammonia nitrogen volatilization loss during the application process. It must be used alone during use, which is inconvenient.

However, there is no report on the production of humic acid silicon calcium magnesium fertilizer