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Preparation method of humic acid-containing fertilizer and soil conditioner composition

A soil conditioner, humic acid technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of environmental pollution, high energy consumption, long process flow, etc., and achieve the effect of low production cost and strong market competitiveness.

Inactive Publication Date: 2015-07-08
英卓科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has the advantage of high purity of the prepared humic acid product, it still has problems to be solved urgently such as large energy consumption, long process flow, and environmental pollution.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0024] The invention provides a preparation method of humic acid-containing fertilizer and soil conditioner composition, which comprises treating humic acid raw material and activator through a coal mill to obtain humic acid-containing fertilizer and soil conditioner composition.

[0025] The method of the present invention is carried out using a coal mill, which is a machine for crushing coal lumps and grinding them into coal powder, and the grinding is mainly carried out in three ways: crushing, smashing and grinding. Coal pulverizers can be divided into low-speed, medium-speed and high-speed coal pulverizers. In the present invention, medium-speed or high-speed coal pulverizers are preferred. The working speed of medium-speed coal pulverizers is generally 50-300r / min, and the coal is mainly ground by rolling Coal powder, the working speed of the high-speed coal mill is generally 500-1500r / min, and the pulverized coal is mainly ground by impact. The general structure and wor...

Embodiment 1

[0044] 100 parts by weight of the Huolinhe lignite raw material containing 75wt% of organic matter and 20 parts by weight of calcium carbonate, 11 parts by weight of urea, and potassium sulfate of 9 parts by weight are sent into the medium-speed mill from the feed port through the lock wind feeder Coal machine, adjust the solid feed amount to 40 tons, set the flow rate of the material in the hot air at the inlet and outlet to 17.83 kg / s, and set the temperature to 400°C. The added material is mixed and pulverized in the coal mill , after reaction and drying, the solid phase particles are collected at the discharge port.

[0045] The used Huolinhe lignite raw material contains 75wt% of organic matter, among which humic acid accounts for 60wt% and other organic matter accounts for 15wt%. The contents are based on the weight of the Huolinhe lignite raw material.

[0046] The contained nutrient substance of the humic acid fertilizer that present embodiment makes is with (N+P 2 o ...

Embodiment 2

[0048] 100 parts by weight of Baotou Shiguai weathered coal raw material with an organic matter content of 67wt%, 20 parts by weight of calcium carbonate, 6 parts by weight of urea, 5 parts by weight of potassium sulfate, and 4 parts by weight of diammonium phosphate are fed through a lock wind The device is fed into the medium-speed coal mill from the feed port, the solid feed amount is adjusted to 30 tons, the flow rate of the material in the hot air at the inlet and outlet is set to 16.5 kg / s, and the temperature is set to 120°C. After mixing, pulverizing, reacting and drying in the coal mill, collect the solid phase particles at the discharge port, and add 2.5 parts of the microbial agent Bacillus megaterium containing 1.5 billion / g after the temperature drops below 55°C.

[0049] The used Baotou Shiguai weathered coal raw material contains 67wt% of organic matter, among which humic acid accounts for 40wt% and other organic matter accounts for 27wt%. The content is based on...

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Abstract

The invention provides a preparation method of a humic acid-containing fertilizer and soil conditioner composition, wherein the preparation method includes treating a humic acid raw material and an activating agent through a coal grinding machine to obtain the humic acid-containing fertilizer and soil conditioner composition. The method avoids a high energy consuming problem of humic acid wet production comprising firstly adding water to carry out a reaction and then carrying out evaporation drying to remove moisture and a solid slag pollution problem after solid-liquid separation, the process is simple and convenient, the flow is shortened, and the obtained product has stable quality.

Description

technical field [0001] The invention relates to a preparation method of a humic acid-containing fertilizer and a soil conditioner composition, in particular to a method for preparing a humic acid-containing fertilizer and a soil conditioner composition by a coal mill dry method. Background technique [0002] The traditional process of preparing humic acid-containing fertilizers and soil conditioner compositions from mineral source humic acid raw materials such as lignite, weathered coal, peat, etc. usually adopts the following wet process: the raw materials are pulverized, and alkali (or Acidic) aqueous solution or organic solvent; heating for reaction, and solid-liquid separation after the reaction; adding plant nutrients and other materials to improve soil physicochemical and biological activity in the separated liquid or humic acid solid product after evaporation and drying . Although this method has the advantage of high purity of the prepared humic acid product, it sti...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
Inventor 谭钧邢文军赵世军董钰潘慧
Owner 英卓科技有限公司
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