Method for fertilizer granulation through molasses alcohol fermentation liquor

A technology of molasses alcoholic fermentation and granulation, which is applied in the direction of fertilizer mixture, application, fertilization equipment, etc., can solve the problems of increasing fertilizer production cost, driving up drying cost, energy consumption, artificial waste, etc., to promote the development of circular economy, The effect of reducing fertilizer production cost and high degree of automation

Inactive Publication Date: 2014-09-10
GUANGXI LIYUANBAO SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. In the secondary high-temperature fermentation process of molasses alcohol fermentation liquid, it will inevitably cause the loss of organic carbon, that is, the loss of nutrients, which reduces the utilization value of fertilizer resource utilization of molasses alcohol fermentation liquid to a certain extent
[0007] 3. After the molasses alcohol fermentation liquid participates in the second high-temperature fermentation, its unique cohesiveness will no longer exist. When manufacturing bio-organic fertilizers or organic-inorganic compound fertilizers, additional binders need to be added to make the fertilizer production process more efficient. Complicates and increases fertilizer production costs
The inventor mixes the powdery elemental raw material and the alcohol fermentation liquid in a drum or disk granulator through long-term tests. Although the concentrated alcohol fermentation liquid has a certain viscosity, it is not easy to form a spherical crystal nucleus, resulting in The granulation rate is low, generally the highest is about 50%, and the return material is close to half, resulting in waste of energy consumption and labor, low production efficiency, and directly pushing up production costs
[0010] 2. The product is relatively single
According to this process, a maximum of 600Kg is added per ton, the water content is 30%, and the organic matter (dry basis) of the molasses alcoholic fermentation liquid is calculated at 70%. Without the addition of organic matter, the organic matter content of the product is lower than 12.6%. , so only compound fertilizers that meet national standards can be produced
[0011] 3. The product has a single nutrient
[0012] 4. When the concentration of molasses alcohol fermentation liquid is low and the amount added is large, it is easy to push up the drying cost or cause the moisture content of the product to fail to meet the national standard
As in Example 16, when 600Kg of molasses alcoholic fermentation liquid with a water content of 60% is added to every ton of compound fertilizer, the water content of the product will reach more than 36%. If there is no drying process, the water content of the product will far exceed that of the compound fertilizer Standard; if it is dried again, it will consume a lot of energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 40 kg of urea, 40 kg of monoammonium phosphate, 20 kg of potassium chloride, 10 kg of copper sulfate, and 590 kg of fermented and decomposed organic raw materials, such as sugar factory filter sludge and cassava residue, are fed and mixed through computer-controlled feeding equipment. On the belt conveyor before the drum granulator, 300 kg of molasses alcohol fermentation liquid with a water content of 95% is sprayed into the aforementioned mixed fertilizer raw materials.

[0032] The above-mentioned mixed raw materials are fully mixed in the drum granulator, and the crystal nuclei formed by the molasses alcohol fermentation liquid and the short fibers of the organic raw materials are gradually enlarged to complete the granulation. After drying, sieving, weighing, packaging and inspection Finally, spherical organic fertilizer products that meet the national standard of NY525-2012 are put into storage, and unqualified products are returned to the crusher for crushing and ...

Embodiment 2

[0034] 100 kg of urea, 150 kg of monoammonium phosphate, 50 kg of potassium chloride, 10 kg of zinc sulfate, and 340 kg of fermented and decomposed organic raw materials of chicken manure and cassava dregs are fed and mixed through computer-controlled feeding equipment, and then enter the horizontal double Spray 350 kg of molasses alcohol fermentation liquid with a water content of 55% before the shaft mixer, and then fully stir with a horizontal twin-shaft mixer.

[0035] The above materials, which are fully stirred evenly, use molasses alcohol fermentation liquid as a binder, and are granulated by an extrusion granulator to make granular organic fertilizer products that meet the national standard of NY525-2012.

Embodiment example 3

[0037] 50 kg of urea, 100 kg of monoammonium phosphate, 50 kg of potassium chloride, 10 kg of zinc sulfate, and 490 kg of 5 kinds of fermented and decomposed organic raw materials such as sugar factory filter sludge, bagasse, sugarcane pith, sugarcane leaves, and cassava bagasse are controlled by computer After the feeding equipment is fed and mixed, spray 300 kg of molasses alcohol fermentation liquid with a water content of 50% before entering the vertical mixer, and fully stir in the vertical mixer.

[0038] The above materials, which are fully stirred evenly, use molasses alcohol fermentation liquid as a binder, and are granulated by a ring die granulator to make granular bio-organic fertilizer products that meet the national standard of NY 884-2012.

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PUM

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Abstract

The invention provides a method for fertilizer granulation through molasses alcohol fermentation liquor. Before granulation, the molasses alcohol fermentation liquor is mixed with a macro-element chemical fertilizer raw material, a medium-element chemical fertilizer raw material, a microelement chemical fertilizer raw material and organic raw materials so that crystal nuclei of particles can be formed, and then granulation is conducted in a granulation device. According to the method, the granulation efficiency of fertilizer is improved to a great extent, the production efficiency of the fertilizer is improved, the production cost is reduced, and clean production through comprehensive use of the molasses alcohol fermentation liquor is achieved.

Description

technical field [0001] The invention relates to a fertilizer granulation method using molasses alcohol fermentation liquid, which belongs to the fields of resource recycling application and fertilizer production. Background technique [0002] Molasses alcohol fermentation liquid is a relatively common by-product in the sucrose industry chain. It belongs to high-concentration organic wastewater, and its direct discharge is extremely harmful to the environment. According to the analysis, 70% of the solids in the molasses alcoholic fermentation broth (dry matter after water removal) are organic matter, including sugar, protein, amino acid, vitamins, etc., and the remaining 30% are ash, containing nitrogen, phosphorus, potassium, calcium, magnesium, etc. Inorganic salt. [0003] Starting from energy saving, emission reduction and the development of circular economy, it is a better choice to use molasses alcohol fermentation liquid to produce fertilizer and return to the land. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
Inventor 邓秀汕邓忠焕邓秀泉
Owner GUANGXI LIYUANBAO SCI & TECH
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