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Method of producing organic composite fertilizer using organic sludge and its equipment

A technology of organic sludge and compound fertilizer, which is applied in fertilization devices, application, dryers, etc., can solve problems such as difficult large-scale production, easy breeding of mosquitoes and flies, and large floor area, so as to achieve good social and economic benefits Benefits, small equipment footprint, and low operating costs

Inactive Publication Date: 2004-10-06
深圳市先科环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the process of using organic sludge to produce organic compound fertilizers must go through the disinfection process of composting and fermentation. The composting method covers a large area and takes a long time. It is easy to breed mosquitoes and emit foul odors, and it is difficult to form large-scale production.

Method used

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  • Method of producing organic composite fertilizer using organic sludge and its equipment
  • Method of producing organic composite fertilizer using organic sludge and its equipment

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Embodiment Construction

[0021] Such as figure 1 As shown, in one embodiment of the present invention, the device of the present invention includes: a feed conveyor 1, a feed hopper 2, a screw extruder 3, a microwave heater 4, a template 5, a hot blast stove 6 and a drum dryer 7.

[0022] The outlet at the bottom of the feed hopper 2 is connected to the inlet of the screw extruder 3; the outlet of the screw extruder 3 is connected to the inlet of the microwave heater 4 through a flange; the middle of the microwave heater 4 is a polytetrafluoroethylene for the material to pass through tube, a microwave generator is arranged on the outer periphery of the tube, and a template 5 for granulation is arranged at the outlet of the microwave heater 4 .

[0023] The organic sludge is continuously fed into the screw extruder 3 together with a certain proportion of fly ash and other additives through the feed conveyor 1 and the feed hopper 2 . Fly ash contains oxides of silicon, aluminum, iron, calcium, magnesiu...

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Abstract

A compound organic fertilizer is prepared from organic sludge through continuous digestion and puffing reaction in a screw extruder. Its advantages are small occupied ground, high efficiency and low cost.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a method and a device for producing organic compound fertilizer from organic sludge. Background technique [0002] The so-called organic sludge refers to sludge with organic matter as the main component, including organic sludge from sewage treatment plants, animal manure from chicken farms, pig farms, cattle farms, etc., and toilets that have not been flushed with water. human feces, etc. The main characteristics of these organic sludges are high organic matter content, high water content (generally 96% to 99.8%), easy to rot and smell, fine particles, poor air permeability, low density, bulky, and colloidal properties; in addition, Organic sludge also contains a large number of pathogenic microorganisms and parasite eggs, which can spread diseases. Due to the high content of organic matter in these organic sludge, from the perspective of environmental protection, it ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F15/00C05G5/00F24C7/02F26B11/02
Inventor 朱定有韩洪波
Owner 深圳市先科环保有限公司