A preparing method of a selenium rich slow-release particle matrix fertilizer

A slow-release, selenium-enriched technology, applied in the direction of alkaline orthophosphate fertilizer, inorganic fertilizer, fertilizer mixture, etc., to achieve the effect of long fertilizer effect, lower production cost, and simple operation process

Active Publication Date: 2016-12-21
哈尔滨龙粮生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method eliminates the strong alkalinity produced by the dissolution of calcium oxide, so that phosphate is slowly released in the form of waste, which is not easy to lose and prolongs the action time of waste. However, this slow-release fertilizer does not contain selenium and can only be used as an ordinary slow-release fertilizer. fertilizer use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Step 1: Preparation of foamed porous matrix

[0042] 1) Clean the glass surface of the waste cathode ray tube after removing the electron gun, remove the fluorescent coating and the grid, then crush the screen glass, ball mill it and pass it through a 300-600 mesh standard sieve for standby;

[0043] 2) Clean and dry the discarded TFT-LCD substrate glass, crush and ball mill it and pass it through a 150-200-mesh standard sieve for later use;

[0044] 3) Put 63% of the above screen glass powder, 28% of TFT-LCD substrate glass powder, 8% of tripotassium phosphate, 0.7% of carbon powder, and 0.3% of potassium permanganate into the mixer according to the mass fraction , after mixing until the uniformity is greater than 98%, a batch is formed;

[0045] 4) Put the above-mentioned batch materials into a heat-resistant stainless steel mold, move the mold together with the batch materials into a foaming kiln; start from room temperature, raise the temperature to 710 °C at a hea...

Embodiment 2

[0057] Step 1: Preparation of foamed porous matrix

[0058] 1) Clean the glass surface of the waste cathode ray tube after removing the electron gun, remove the fluorescent coating and the grid, then crush the screen glass, ball mill it and pass it through a 300-600 mesh standard sieve for standby;

[0059] 2) Clean and dry the discarded TFT-LCD substrate glass, crush and ball mill it and pass it through a 150-200-mesh standard sieve for later use;

[0060] 3) Put 75% of the above screen glass powder, 17% of TFT-LCD substrate glass powder, 7% of tripotassium phosphate, 0.6% of carbon powder, and 0.4% of potassium permanganate into the mixer according to the mass fraction , after mixing until the uniformity is greater than 98%, a batch is formed;

[0061] 4) Put the above-mentioned batch materials into a heat-resistant stainless steel mold, move the mold together with the batch materials into a foaming kiln; start from room temperature, raise the temperature to 680 °C at a hea...

Embodiment 3

[0073] Step 1: Preparation of foamed porous matrix

[0074] 1) Clean the glass surface of the waste cathode ray tube after removing the electron gun, remove the fluorescent coating and the grid, then crush the screen glass, ball mill it and pass it through a 300-600 mesh standard sieve for standby;

[0075] 2) Clean and dry the discarded TFT-LCD substrate glass, crush and ball mill it and pass it through a 150-200-mesh standard sieve for later use;

[0076] 3) Put 69% of the above screen glass powder, 25% of TFT-LCD substrate glass powder, 5% of tripotassium phosphate, 0.2% of carbon powder, and 0.8% of potassium permanganate into the mixer according to the mass fraction , after mixing until the uniformity is greater than 98%, a batch is formed;

[0077] 4) Put the above-mentioned batch materials into a heat-resistant stainless steel mold, and move the mold together with the batch materials into a foaming kiln; start from room temperature, raise the temperature to 730 °C at a...

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Abstract

A preparing method of a selenium rich slow-release particle matrix fertilizer is disclosed. Waste glass and selenium rich ore are adhered into a whole part so that fertilizer effects are rich, a slow release effect is good, and disadvantages of fertilizers at present, namely single fertilizer effects, easy soil agglomeration and complex compositions, are overcome. The selenium rich slow-release particle matrix fertilizer prepared by the method is good in fertilizer effects, low in raw material cost, rich in sources, simple in preparing process, free of pollution to the environment and beneficial to industrial production.

Description

technical field [0001] The invention relates to a method for preparing a fertilizer, in particular to a method for manufacturing a selenium-rich slow-release granular matrix fertilizer. Background technique [0002] China is a big country in the production and consumption of household electrical appliances. At present, China has entered the peak period of TV and computer replacement, and the annual elimination will reach more than 6 million sets, accounting for 55-65% of the total weight of the cathode ray tube (CRT). ) and TFT-LCD, PDP glass, etc. urgently need to find a suitable resource solution. Especially lead-free screen glass in CRT, if it is not recycled, it will not only occupy land, but also waste resources. How to turn discarded screen glass into treasure has become an urgent problem to be solved. [0003] CN201410278012.0 (Liu Youde. A selenium-enriched high-efficiency slow-release compound fertilizer: China, CN201410278012.0[P].2014-9-24) The fertilizer is base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05G3/80C05G5/12C05D1/02C05D9/00C05D1/00
Inventor 郭宏伟白胜利殷海荣宁峰明罗亚丽艾志远杨晨杨龙康
Owner 哈尔滨龙粮生物科技有限公司
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