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Preparation method and device of organic soil conditioner

A preparation device, a technology of organic soil, applied in the field of agricultural soil and fertilizer, to achieve the effect of fertilizing soil fertility and promoting plant growth

Inactive Publication Date: 2010-12-22
张大伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Can a method and device be used to eliminate harmful bacteria, parasite eggs and viruses in the above sludge at high temperature, retain the carbon and organic nutrients contained in the organic matter in the sludge, and make a carbon and Nitrogen, phosphorus pentoxide, potassium oxide and other organic nutrients, and organic soil amendments with soil improvement, fertility and plant growth promotion functions, have not been reported so far

Method used

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  • Preparation method and device of organic soil conditioner
  • Preparation method and device of organic soil conditioner
  • Preparation method and device of organic soil conditioner

Examples

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preparation example Construction

[0030] Please combine figure 1 , the preparation method of the present invention, its main steps are:

[0031] a) Heat the temperature in the heating chamber of the intermittent rotary preparation device to 200°C-300°C, and rotate the large drum, the small drum, and the small discharge drum of the intermittent rotary preparation device in a clockwise direction as viewed from one end of the gas collection chamber;

[0032] b) Use a hydraulic lifting device to adjust the inclination angle of the overall steel base 38 to 1-3°, turn the screw conveyor, and transport the sludge in the sludge bin from one end of the air collection chamber to the large drum, and then enter the sludge in the large drum The large drum is tilted and rotated and the turning plate moves forward to cover the bottom wall of the large drum, and then use the hydraulic lifting device to adjust the inclination angle of the integral steel base 38 to 0°, open the valve of the steam outlet on the top of the air co...

Embodiment 1

[0048] The organic soil conditioner 10 is prepared by using sludge from a sewage treatment plant with a water content lower than 85% as raw material and gas as fuel. Before the sludge is prepared as an organic soil conditioner10, it should be tested whether the heavy metals in the sludge meet the relevant national standards.

[0049] see figure 1 , is a schematic diagram of the preparation process of the organic soil amendment;

[0050] a) Heat the temperature in the heating chamber 43 of the intermittent rotary preparation device 3 to the dehydration temperature (200°C-300°C), and place the large drum 41, the small drum 31, and the small discharge drum 16 of the intermittent rotary preparation device 3 Viewed from one end of the gas collection chamber 30, rotate clockwise;

[0051] b) Use the hydraulic lifting device 29 to adjust the inclination angle of the integral steel base 38 to 3°, turn the screw conveyor 2, and transport the sludge in the sludge bin 1 from one end of...

Embodiment 2

[0086] Using the sludge and algae organisms in the process of dredging the bottom of the lake with a water content lower than 85% as raw materials and using coke as fuel to prepare an organic soil conditioner 10

[0087] Before the sludge and algae organisms in the lake bottom dredging process were prepared, the heavy metals in the sludge were tested to meet the relevant national standards.

[0088] see figure 1 , is a schematic diagram of the preparation process of the organic soil amendment;

[0089] a) Heat the temperature in the heating chamber 43 of the intermittent rotary preparation device 3 to the dehydration temperature (200°C-300°C), and place the large drum 41, the small drum 31, and the small discharge drum 16 of the intermittent rotary preparation device 3 Viewed from one end of the gas collection chamber 30, rotate clockwise;

[0090] b) Use the hydraulic lifting device 29 to adjust the inclination angle of the integral steel base 38 to 3°, turn the screw conve...

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Abstract

The invention relates to a preparation method of an organic soil conditioner. The method comprises the following steps: placing sludge in an intermittently rotary preparation device to dewater at 200-300 DEG C, then conveying the obtained sludge in the intermittently rotary preparation device to dewater at 200-300 DEG C, performing dry distillation at 700-850 DEG C when the volume of the dewatered sludge accounts for 25-35% of that of the intermittently rotary preparation device; cooling the product of dry distillation to below 100 DEG C, and discharging. By using the method of the invention, harmful bacteria, parasite eggs, viruses and the like in sludge can be killed under a high temperature; and the obtained sludge contains carbon element and organic nutrients such as nitrogen, phosphorus pentoxide and potassium oxide and has the functions of improving soil, increasing soil fertility and promoting plant growth.

Description

technical field [0001] The invention belongs to the field of agricultural soil and fertilizer, and in particular relates to a preparation method of an organic soil improver. [0002] The invention also relates to a device for carrying out the method described above. Background technique [0003] Sewage treatment plants of cities or enterprises produce a certain amount of sludge during the process of sewage treatment; a certain amount of sludge or / and algal organisms are also produced during the dredging process of rivers and lakes; the composition of these sludges is very complex , is a collection of bacteria gelatin formed by various microorganisms or / and organic matter and inorganic matter. In addition to containing a large amount of water (up to 99%), it also contains pathogenic microorganisms and parasite eggs. The organic content in the sludge is high, it is easy to be corrupted, and it produces a bad smell. A large amount of untreated sludge is piled up and discharged...

Claims

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Application Information

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IPC IPC(8): C09K17/08C09K17/00C02F11/12C09K109/00C09K101/00
CPCY02W10/37
Inventor 张大伟
Owner 张大伟
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