Automatic control equipment and method for preparing organic-inorganic mixed fertilizer from garden greening waste compost

A landscaping and waste technology, applied in the field of automatic control equipment, can solve the problem of low nutrient content of compost, achieve the effect of increasing nutrient content, shortening composting time, and reducing phosphorus fixation

Inactive Publication Date: 2017-01-04
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, one of the purposes of the present invention is to provide an automatic control device for making organic-inorganic mixed fertilizer by composting landscaping waste, which realizes the automatic detect...

Method used

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  • Automatic control equipment and method for preparing organic-inorganic mixed fertilizer from garden greening waste compost
  • Automatic control equipment and method for preparing organic-inorganic mixed fertilizer from garden greening waste compost
  • Automatic control equipment and method for preparing organic-inorganic mixed fertilizer from garden greening waste compost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] After the thick branches (diameter ≥ 1.5cm) of the garden waste are selected and separated, they are fed and crushed by the feed port 1 of the pulverizer. The garden waste is pulverized by the primary pulverizer 3, and the particle size is ≤ 20mm, and the particle size is pulverized by the secondary pulverizer 4. The diameter is less than or equal to 5mm, and then the material is discharged through the discharge port 6 of the pulverizer.

[0059] The pulverized material enters the movable bucket truck 7 for material pretreatment, and the C / N of the pulverized material is adjusted to be (25-30):1, and the moisture content is 55%-65%. After the above-mentioned pretreatment, the material reaches the entrance 10 of the fermentation bin through the translation device 8 and the lifting device 9, and the composting process begins after the material enters the fermentation bin body.

[0060] In the composting process, the initial temperature and oxygen content adjustment contro...

Embodiment 2

[0065] The operation steps and composting treatment conditions are the same as in Example 1, the difference is that the composting material is fermented and decomposed through 12 to 15 days, and ammonium sulfate, superphosphate, and chlorine are added to the organic-inorganic mixed fertilizer device 36 through the batching port 35 Potassium chloride, ammonium sulfate, superphosphate, potassium chloride, and compost decomposed clinker are in a mass ratio of 12:6:1:40. The organic-inorganic fertilizer produced in this example can be used as the base fertilizer for wheat.

Embodiment 3

[0067] The operation steps and composting treatment conditions are the same as in Example 1, except that the composting material is fermented and decomposed for 12 to 15 days, and ammonium sulfate, monoammonium phosphate, sulfuric acid are added to the organic-inorganic mixed fertilizer device 36 through the batching port 35 The mass ratio of potassium, ammonium sulfate, superphosphate, potassium chloride and compost decomposed clinker is 11:5:6:90. The organic-inorganic fertilizer produced in this embodiment can fertilize some crops that have high requirements for phosphorus and potassium and slightly lower nitrogen, such as potatoes and onions.

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Abstract

The invention discloses automatic control equipment for preparing an organic-inorganic mixed fertilizer from garden greening waste compost. The automatic control equipment comprises a separating and pulverizing device, a mobile trolley, a conveying system, a fermentation bin and an ingredient mixing bin; the fermentation bin comprises a compost bin, a soil moisture status sensor, a PH sensor, an oxygen content sensor, an oxygenation and cooling system, a PH regulating system and a heat source, wherein the soil moisture status sensor, the PH sensor and the oxygen content sensor are arranged in the compost bin, the soil moisture status sensor is used for measuring the temperature and the moisture content of garden greening waste, the PH sensor and the oxygen content sensor are used for measuring the PH value and the oxygen content of the garden greening waste respectively, the oxygenation and cooling system is used for changing the temperature, the oxygen content and the moisture content of the greening waste in the compost bin, and the PH regulating system is used for changing the PH value of the greening waste in the compost bin. The invention further discloses a method for preparing the organic-inorganic mixed fertilizer from the garden greening waste compost. The method comprises the following steps that pulverizing is conducted, control treatment of the fermentation process is conducted for 12-15 days, and treatment of the organic-inorganic fertilizer procedure is conducted. Accordingly, an automated detection and control mode of the composting process is achieved, the problem that the compost is low in nutrient content is solved, and meanwhile the fertilizer effect is improved.

Description

technical field [0001] The invention relates to the field of landscaping waste recycling, in particular to an automatic control device and method for making organic-inorganic mixed fertilizer by composting landscaping waste. Background technique [0002] With the rapid development of urban greening in my country, the output of urban landscaping waste is increasing day by day. According to the "2013 China Land Greening Status Bulletin" issued by the Office of the National Greening Committee in March 2014, it shows that the green coverage rate of urban built-up areas in the country is 39.59%, and the green area rate is 35.72%. The output of green waste is tens of millions of tons. At present, most of the landscaping waste in most cities in my country still adopts landfill or incineration as the main terminal treatment method. According to statistics, more than 80% of green waste in my country is disposed of through landfill or simple landfill. This traditional treatment This ...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05F17/00C05F17/02
CPCC05B1/02C05F11/00C05F17/00C05F17/90C05C9/00C05D1/00C05F9/04C05C3/00C05D1/02Y02W30/40
Inventor 刘敏茹李家杰林镇荣郭华芳熊祖鸿
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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