CN1436755A - Semi-automatic control method of feedback ventilation temperature in producing aerobic compost - Google Patents
Semi-automatic control method of feedback ventilation temperature in producing aerobic compost Download PDFInfo
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- CN1436755A CN1436755A CN03119301A CN03119301A CN1436755A CN 1436755 A CN1436755 A CN 1436755A CN 03119301 A CN03119301 A CN 03119301A CN 03119301 A CN03119301 A CN 03119301A CN 1436755 A CN1436755 A CN 1436755A
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- temperature
- compost
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- gas blower
- automatic control
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- 239000002361 compost Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009423 ventilation Methods 0.000 title claims abstract description 15
- 244000052616 bacterial pathogen Species 0.000 claims abstract description 9
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000006731 degradation reaction Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 11
- 239000002910 solid waste Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000000855 fermentation Methods 0.000 abstract 1
- 230000004151 fermentation Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000005273 aeration Methods 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The present invention is the semi-automatic control method of feedback ventilation temperature in producing aerobic compost in the compost temperature controlling technology. The semi-automatic control technology of feedback ventilation temperature combining automatic control and manual control is to control the compost center temperature in 70-75 deg.c and 55-65 deg.c in different stages. The said method can kill pathogenic bacteria, maintain optimized compost degradation and water elimination, maintain the set temperature through manually controlling the blower in the late stage for speeding fermentation and shortening processing period, lower power consumption, and realize harmless compost production.
Description
Technical field
The invention belongs to compost temperature control aeration technology scope, particularly a kind of aerobic compost Temperature Feedback airy semiautomatic controls method.
Background technology
Compost is a kind of method of handling increasing solid waste.The target of compost mainly contains two: innoxious and resource utilization.Innoxious being meant by compost killed pathogenic bacterium, and resource utilization is meant that finishing quick degraded, humify and excessive moisture by the compost substrate removes fast, thereby obtains good fertilizer.Therefore, in composting process, the controlled target difference of different steps heap body: (1) is innoxious: in the compost stage one, the substrate of degraded is many easily in the heap body, under ventilation, microorganism breeds fast, and substrate is degraded rapidly, heap temperature is fast rise also, by control heap temperature in higher level better to kill pathogenic bacteria; (2) resource utilization: in the compost stage two, the control heap temperature carries out compost under best degradation of substrates and moisture removal temperature, can quicken to pile the degradation of substrates and the moisture removal of body, shortens the compost cycle.Traditional compost mainly adopts the stack retting method, because composting process is lacked effectively control, the compost cycle is long, and labour intensity is big, can not satisfy increasing solid waste disposal requirement.Compost temperature feedback ventilate the engineering of control automatically be applied in external existing two more than ten years history, yet also few in the present application of China.The patent No. be 00105833.9 and the patent No. be to report compost automatically the instrument control and the computer control of control in 01120522.9 respectively, wherein instrument control is simple and practical, price is lower, safeguards also more conveniently, piles body but once can only control one; The computerized control system complexity, the price height, safeguarding needs higher state of the art, can control a plurality of heap bodies.The application of China's present compost temperature feedback Ventilation Control is less, and be stage control mostly, promptly control is piled body core temperature at 55 ℃～60 ℃ in compost ventilates, blower fan continuous blast when temperature surpasses 55 ℃～60 ℃ when temperature is lower than 55 ℃～60 ℃, is adopted the blower fan intermittent aeration of Fixed Time Interval, the defective of this method has two: the one,, during 55 ℃～60 ℃ at temperature control heap body center, lower floor's temperature does not reach 55 ℃, and the effect of killing pathogenic bacterium is relatively poor; The 2nd,, it is to adopt fixedly ventilation that temperature is lower than 55 ℃～60 ℃, and this caused in the compost later stage, and heap temperature is difficult to be controlled at 55 ℃～60 ℃, and heap temperature descends, and moisture removal and degradation of substrates ability reduce.
Summary of the invention
The purpose of this invention is to provide a kind of aerobic compost Temperature Feedback airy semiautomatic controls method, it is characterized in that: compost is a kind of method of handling organic solid waste, its temperature control and ventilation are adopted automatically and the Temperature Feedback ventilation semiautomatic controls technology that manually combines in this treating processes, promptly in the stage one, control heap body core temperature is at 70 ℃～75 ℃, lower floor's temperature can reach more than 55 ℃, can better kill pathogenic bacterium; In the stage two, control heap body core temperature keeps heap body degradation of substrates and moisture removal the best at 55 ℃～65 ℃; In the compost later stage, the switching time of artificially regulating blower fan still can keep heap temperature to reach 55 ℃～60 ℃.This method is to survey the compost body core temperature by temperature sensor, by temperature controller control signal delivered to alternating current contactor and controls its break-make, and the air supply mode of decision gas blower, when temperature remained on preset temperature, gas blower quit work; When temperature surpasses preset temperature, the gas blower continuous ventilating; When being lower than preset temperature, with time controller signal control alternating current contactor working hour length, make the work of gas blower discontinuous or adjust the switching time length of time controller artificially, thereby adjust the switching time of gas blower, keep the design temperature of compost body in the later stage.
Compared with prior art, the present invention has the following advantages: temperature control is divided into the two-stage, can better take into account pathogenic bacterium and kill requirement with degradation of substrates; Later stage reduces blower ventilation time in the unit time by the manual shift time controller, thereby prolongs 55 ℃～60 ℃ temperature control times, can cut down the consumption of energy by a relatively large margin than valve regulated; The temperature control instrument can adopt the simplest, and is cheap, safeguards simple.The control compost helps the fermenting process acceleration under preferred temperature, shorten the processing cycle.
Description of drawings
Fig. 1 is compost temperature feedback ventilation semiautomatic controls synoptic diagram.
Embodiment
The present invention is a kind of aerobic compost Temperature Feedback airy semiautomatic controls method, compost is a kind of method of handling organic solid waste, its temperature control and ventilation are adopted automatically and the Temperature Feedback ventilation semiautomatic controls technology that manually combines in this treating processes, promptly in the stage one, control compost body core temperature can be killed pathogenic bacterium at 70 ℃～75 ℃; In the stage two, control heap body core temperature is piled body degradation of substrates and moisture removal the best at 55 ℃～65 ℃; In the compost later stage, the switching time of artificially regulating blower fan still can keep heap temperature to reach 55 ℃～60 ℃.Its control process is to survey compost body 1 core temperature (as shown in Figure 1) by temperature sensor 2, by temperature controller 3 control signal is delivered to alternating current contactor 5 its break-makes of control; Whether decision gas blower 6 blows, when temperature remains on preset temperature, gas blower 6 quits work, the working hour length of the signal control alternating current contactor 5 of temperature controller 3 all right time controllers 4, make gas blower 6 discontinuous work or adjust switching time of gas blower 6 artificially, keep the design temperature of compost body 1 in the later stage.
Concrete enforcement is as follows:
(1) stage one temperature control is 70～75 ℃: temperature sensor 2 is inserted compost body 1 center, temperature controller 3 controlled temperature are adjusted to about 70 ℃～75 ℃, the make-and-break time of time controller 4 is adjusted to desired value (as disconnecting 5～15 minutes, closed 0.5～5 minute), connect power supply, blower fan 6 starts the compost process, compost body 1 can heat up rapidly, when treating that temperature rises to set(ting)value, temperature controller 3 is promptly started working, blower fan 6 continuous blasts cooling when the heap body core temperature surpasses set(ting)value, blower fan 6 is worth circulative unlatching according to the setting break-make of time controller 4 and stops when being lower than set(ting)value; 70 ℃～75 ℃ of temperature controls 1～3 day, can better be killed pathogenic bacterium;
(2) stages two temperature control is 55 ℃～60 ℃: the temperature control value is adjusted to about 55 ℃～60 ℃, after the same method controlled temperature; To the compost later stage, compost body heat production ability drop, ventilation and heat is more, effectively temperature control is about 55 ℃～60 ℃, shorten making time by adjusting time controller 4, prolong turn-off time (as disconnecting 15～30 minutes this moment, closed 10～60 seconds), just can preferably compost body 1 temperature still be remained on set(ting)value, make degradation of substrates and moisture removal the best of compost body.
Claims (1)
1. aerobic compost Temperature Feedback airy semiautomatic controls method, it is characterized in that: compost is a kind of method of handling organic solid waste, its temperature control and ventilation are adopted automatically and the Temperature Feedback ventilation semiautomatic controls technology that manually combines in this treating processes, promptly in the stage one, control heap body core temperature can better be killed pathogenic bacterium at 70 ℃～75 ℃; In the stage two, control heap body core temperature keeps heap body degradation of substrates and moisture removal the best at 55 ℃～65 ℃; In the compost later stage, the switching time of artificially regulating blower fan still can keep heap temperature to reach 55 ℃～60 ℃; The realization of this method is to survey the compost body core temperature by temperature sensor, by temperature controller control signal delivered to alternating current contactor and controls its break-make, and the air supply mode of decision gas blower, when temperature surpasses preset temperature, the gas blower continuous ventilating; When being lower than preset temperature, with time controller signal control alternating current contactor working hour length, make the work of gas blower discontinuous or adjust switching time of gas blower artificially in the later stage, keep the design temperature of compost body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03119301A CN1436755A (en) | 2003-03-13 | 2003-03-13 | Semi-automatic control method of feedback ventilation temperature in producing aerobic compost |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03119301A CN1436755A (en) | 2003-03-13 | 2003-03-13 | Semi-automatic control method of feedback ventilation temperature in producing aerobic compost |
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| Publication Number | Publication Date |
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| CN1436755A true CN1436755A (en) | 2003-08-20 |
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| CN03119301A Pending CN1436755A (en) | 2003-03-13 | 2003-03-13 | Semi-automatic control method of feedback ventilation temperature in producing aerobic compost |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389894C (en) * | 2005-10-21 | 2008-05-28 | 北京师范大学 | Automatic ventilating control and controller for waste uniform degradation by temperature gradient feedback |
| CN102391028A (en) * | 2011-08-05 | 2012-03-28 | 曹际娟 | Compost treatment method for pathogenic bacillus pollutants |
| CN106746455A (en) * | 2016-12-20 | 2017-05-31 | 上海市政工程设计研究总院（集团）有限公司 | A kind of biological dewatered method of anaerobically digested sludge |
-
2003
- 2003-03-13 CN CN03119301A patent/CN1436755A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389894C (en) * | 2005-10-21 | 2008-05-28 | 北京师范大学 | Automatic ventilating control and controller for waste uniform degradation by temperature gradient feedback |
| CN102391028A (en) * | 2011-08-05 | 2012-03-28 | 曹际娟 | Compost treatment method for pathogenic bacillus pollutants |
| CN106746455A (en) * | 2016-12-20 | 2017-05-31 | 上海市政工程设计研究总院（集团）有限公司 | A kind of biological dewatered method of anaerobically digested sludge |
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