Method for producing kaolin tailing compressed nutritional soil
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A technology for kaolin tailings and compressing nutrient soil, which is applied in fertilizer mixtures, fertilization devices, applications, etc., can solve problems such as large volume, unfavorable normal growth and development of seedlings, and reduction of production and transportation costs.
Active Publication Date: 2014-10-29
度测(上海)科技服务中心
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Generally, it is prepared by mixing fertile field soil and decomposed manure. There are also nutrient soils selected from imported high-quality peat and coconut bran mixed in a specific proportion. However, these nutrient soils have not undergone reasonable ingredients and strict disinfection. Conducive to the normal growth and development of seedlings
[0009] Because the treated nutrient soil is relatively light and loose, the conventional product of nutrient soil is relatively large, which is not conducive to reducing the cost of production and transportation
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[0064] Below in conjunction with embodiment the present invention will be further described:
[0065] 1. The production method of compressed nutrient soil from kaolin tailings: (1) Input the ingredients of compressed nutrient soil from kaolin tailings into a running mixer for stirring, and then input them into a tablet press to compress them into kaolin tailings compressed nutrient soil flakes, kaolin The thickness of the compressed nutrient soil flakes of tailings is controlled at 20mm; (2) The compressed nutrient soil flakes of kaolin tailings are transported to a microwave belt drying and sterilizing machine for low-temperature sterilization and drying, and the temperature is controlled at 70-90°C , the time is controlled at 45 minutes, and the water content of the sterilized and dried kaolin tailings compressed nutrient soil flakes is ≤15%; (3) the sterilized and dried kaolin tailings compressed nutrient soil flakes are transported to the heat preservation In the bacteria ...
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Abstract
The invention discloses a method for producing kaolin tailing compressed nutritional soil. The key point of the technical scheme of the invention is as follows: kaolin tailings and sludge are subjected to acidification treatment firstly, then, ingredients of the kaolin tailing compressed nutritional soil are subjected to stirring, compressing and microwave low-temperature sterilization, and then, packaging is carried out, so as to produce a finished product. The kaolin tailing compressed nutritional soil is prepared from materials, such as acidified kaolin tailings, acidified sludge, instant-dissolved sodium silicate, ferrous sulfate, peat, flower ceramsite, high-viscosity attapulgite, biogas liquid, crushed plant fiber, expanded vermiculite, expanded perlite, super-absorbent resin and the like. The kaolin tailing compressed nutritional soil contains a large number of nitrogen, phosphorus, potassium, organic matters and a variety of microelements, so that nutrient elements necessary for the growth of plants can be provided, the harm to the plants caused by pathogenic bacteria and pests is reduced, and the normal growth and development of the plants and the protection to the ecological environment are facilitated. The method for producing the kaolin tailing compressed nutritional soil is suitable for producing kaolin tailing compressed nutritional soil of different formulations.
Description
technical field [0001] The invention relates to nutrient soil, in particular to a production method of kaolin tailings compressed nutrient soil. Background technique [0002] Kaolin is a kind of clay and clay rock mainly composed of kaolinite clay minerals. It is mostly dull. When it is pure, it is white and fine. If it contains impurities, it can have gray, yellow, brown and other colors. The appearance can vary depending on the cause. It is loose soil block and compact rock block. [0003] There are a large number of kaolin tailings in the kaolin mining area, which have not been well developed and utilized. [0004] Sludge is a kind of easily corrupt and smelly paste produced in the process of sewage treatment. It enriches the pollutants in sewage, contains a large amount of nutrients such as nitrogen and phosphorus, organic matter, virus microorganisms, parasite eggs, heavy metals, etc. Toxic and harmful substances will cause serious harm to the environment if they are ...
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