Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for increasing success rate of compost

A success rate and composting technology, applied in the field of composting, can solve the problems of inability, difficulty in heating up the compost body, and prolonged composting time.

Inactive Publication Date: 2009-08-05
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive ventilation will take away a lot of heat, causing the heat dissipation of the pile to be greater than the heat produced, making it difficult for the pile to heat up
However, if the ventilation rate is too low, the pile will be in an anaerobic state, and it will also be difficult to heat up.
When the temperature of the external environment is low, it is difficult for the blown gas to meet the needs of microbial activities, which prolongs the composting time or fails the composting, thus greatly increasing the composting area and composting cost
Therefore, if there are no heating measures, normal composting and fermentation cannot be carried out in northern my country due to the low temperature in winter.
However, if the ordinary external heating method is used, the heating process cannot be automatically adjusted according to the temperature change in winter, so there are technical and economic obstacles such as large energy consumption, serious energy loss, and large equipment investment, so that the external heating method is in Lack of practical application value in winter composting
Chen Tongbin and others invented an automatic control winter composting auxiliary system (invention patent ZL01120518.0), which solves the problems of difficulty in heating up the compost heap in low temperature seasons or serious loss of heating energy consumption, reduces the energy consumption of composting, and can also shorten the composting time. Composting time in winter from 3 / 4 to 7 / 8 reduces the composting area, improves the success rate of composting and the quality of composting products
However, this method requires additional power consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for increasing success rate of compost
  • Method and device for increasing success rate of compost
  • Method and device for increasing success rate of compost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Two composting experiments were set up, and the composting material was municipal sludge. The moisture content of urban sludge is 80.5%, and the conditioning agent is wood chips. The geometric dimensions of the composting pool are 10m×8m×1.6m (length×width×height), and the test control system is a special composting control system and software Compsoft1.0 developed by Beijing Zhongke Bolian Environmental Protection High-tech Co., Ltd. No. 0007462), the geometric size of the hot blast stove is 1.6m×1.6m×2.4m (length×width×height), and the diameter of the hot air induction pipe is 0.6m. Composting treatment adopts the method 1 of the present invention, that is, adopts the method of introducing hot dry air to increase the air intake temperature of the composting pool, and adjusts the temperature of the air pipe of the composting pool to 50-65 ° C by the electromagnetic valve according to the temperature of the hot dry air and the temperature of the outside air ; Compostin...

Embodiment 2

[0029] Two composting experiments were set up, and the composting material was municipal sludge. The moisture content is 79.2%, and the conditioner uses wood chips. The geometric size of the composting pool is 10m×8m×1.6m (length×width×height). The test control system is a special composting control system and software Compsoft2.0 developed by Beijing Zhongke Bolian Environmental Protection High-tech Co., Ltd. The geometric size of the hot blast stove It is 1.6m×1.6m×2.4m (length×width×height). Composting treatment one adopts the method two of the present invention, namely adopting the method of heat exchange to directly utilize the waste heat of the dryer: the pipe diameter of the hot air induction pipe is 0.8 meters, and the total length is 14 meters. Through heat exchange, the air temperature in the hot air pipe is 35~50°C. Composting treatment two directly adopts outside air (temperature below 9°C). The ambient temperature (i.e. the outside air temperature) and the tempe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for raising compost success rate, introducing hot dry air into compost pile body, reducing air quantity of introduced hot dry air successively during microbe culture period, quickly heating up period and high temperature control period. The device of the method is composed of a hot blast furnace for introducing hot dry air into compost pile body via a hot air introduced pipe, a threeway air pipe arranged between the hot air introduced pipe and the compost pile body, the first end of the threeway air pipe connected with the hot air introduced pipe, the second end is arranged in the compost pile body, the third end communicates with air; a adjusting gas valve for realizing proportion of hot dry air and air.

Description

technical field [0001] The invention relates to a composting method, in particular to a method for improving the success rate of composting. [0002] The invention also relates to a device for implementing the above method Background technique [0003] Organic waste pollution is a major environmental problem facing our country. According to statistics, in 2002, the production of livestock and poultry manure in my country was 2.75 billion tons, and the amount of garbage and manure removed was nearly 200 million tons (Gao Ding et al., Geographical Research, 2006, 25(2): 311-318). In addition, more than 7 million dry tons of municipal sludge and paper sludge are produced every year. Such a large amount of organic waste will cause serious environmental problems if there is no economically feasible disposal means for disposal and utilization. [0004] Composting is an effective way to deal with livestock and poultry manure, sludge, and garbage. Through composting, organic was...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C05F17/00C05F17/02
CPCY02W30/40
Inventor 高定陈同斌郑国砥刘斌
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS