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Humic acid compound fertilizer spraying, granulating and drying process and granulating and drying equipment

A technology of shotcrete granulation and drying equipment, which is applied in the directions of drying solid materials, drying goods processing, drying gas arrangement, etc., can solve the problem of different medium characteristics, moisture content, concentration and viscosity, and cannot be directly granulated with humic acid compound fertilizer. Drying and other problems to achieve the effect of improving drying efficiency, preventing excessive temperature and uniform distribution

Pending Publication Date: 2022-01-14
红河锦东化工股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide humic acid compound fertilizer spray granulation drying process and granulation drying equipment, to solve the problem of using spray granulation dryer to produce humic acid compound fertilizer in the above background technology. The slurry concentration, medium characteristics, moisture content, concentration and viscosity formed by fertilizer ingredients are different from the monoammonium phosphate slurry, so the spray granulation dryer of monoammonium phosphate cannot be directly used for granulation and drying of humic acid compound fertilizer. The problem

Method used

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  • Humic acid compound fertilizer spraying, granulating and drying process and granulating and drying equipment
  • Humic acid compound fertilizer spraying, granulating and drying process and granulating and drying equipment

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Embodiment 1

[0031] Such as Figure 1-5 As shown, the present invention provides a technical solution: humic acid compound fertilizer spray granulation drying process and granulation drying equipment, including the following steps:

[0032] S1, pulverizing lignite into granules of 60 mesh to 80 mesh, then adding water and dilute lye with a concentration of 2%, adding coal, alkali and water to the mixing and dissolving tank, and the ratio of coal, alkali and water is 100: 6:400, pass in steam so that when the temperature reaches 80°C, control the temperature at 80°C for 1 hour;

[0033] S2. After the heating is over, pump the slurry into the settling tank for settlement. The settling time is not less than 24 hours, so that the insoluble impurities can be fully settled. Filtration and pressure filtration treatment, using filtration and pressure filtration to remove impurities and insolubles in the humic acid aqueous solution;

[0034] S3. Use a pump to pump the obtained humic acid solution...

Embodiment 2

[0042] Such as Figure 1-5 As shown, the present invention provides a technical solution: granulation drying equipment for humic acid compound fertilizer spray granulation drying process, the granulation drying equipment includes a drum 2, and one end of the drum 2 is provided with a feed chamber 9. The other end of the drum 2 is provided with a discharge chamber 5, and one side of the feed chamber 9 is provided with a flue gas inlet pipe 3, and the flue gas inlet pipe 3 is provided with a regulating plate 4, the There are multiple sets of adjustment plates 4, and the adjustment plates 4 are arranged around. The flue gas inlet pipe 3 is provided with a cold air port 12, and a cold air blade valve 1 is installed in the cold air port 12. The feed chamber 9 is located at The flue gas inlet is provided with a swirling smoke barrier 13, and the feed chamber 9 is located above the flue gas inlet pipe 3 and is provided with a grouting inlet 11, and the grouting inlet 11 is provided w...

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Abstract

The invention discloses a humic acid compound fertilizer spraying, granulating and drying process and granulating and drying equipment. The humic acid compound fertilizer spraying, granulating and drying process comprises the steps that lignite is crushed into 60-80 mesh particles, then water and dilute alkali liquor with the concentration of 2% are added, coal, alkali and the water are added into a mixing dissolving tank, the ratio of the coal to the alkali to the water is 100: 6: 400, steam is introduced, when the temperature reaches 80 DEG C, the temperature is controlled to be 80 DEG C, and heat preservation is performed for 1 hour; S2, slurry is pumped into a settling tank for settling for not less than 24 hours so as to fully settle insoluble impurities, after settling is finished, liquid containing humic acid on the upper layer is pumped, the liquid is pumped into a filter tank for filtering and filter pressing treatment, and impurities and insoluble substances in a humic acid aqueous solution are removed by utilizing a filtering and filter pressing method. According to the humic acid compound fertilizer spraying, granulating and drying process and the granulating and drying equipment, the problems that traditional monoammonium phosphate spraying, granulating and drying equipment is not suitable for humic acid compound fertilizer, and continuous production is difficult are solved, particle breaking and softening deformation caused by high temperature are avoided, and a good effect is achieved.

Description

technical field [0001] The invention relates to the technical field of humic acid compound fertilizer processing, in particular to a humic acid compound fertilizer spraying granulation drying process and granulation drying equipment. Background technique [0002] The use of humic acid in compound fertilizer is the development trend of compound fertilizer today. Lignite is rich in humic acid. Humic acid is a "natural accumulation" organic water-soluble fertilizer with the highest organic matter content and the best correlation effect. The improver is also a synergistic slow-release agent for chemical fertilizers; the combination of humic acid and chemical fertilizers can achieve the integrated effect of soil nutrients, which is a specific effect that any fertilizer does not have; a large number of studies have shown that humic acid is a slow-release agent and stabilizer for nitrogen fertilizers , a synergist for phosphate fertilizers, a protective agent for potassium fertiliz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B11/02F26B21/00F26B21/10F26B21/12F26B25/00C05F11/02C05G3/80C05G5/12
CPCF26B11/02F26B21/004F26B21/12F26B21/10F26B25/002C05F11/02C05G3/80C05G5/12C05G1/00
Inventor 王守全
Owner 红河锦东化工股份有限公司
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