CN101943413A - Integral sludge incineration process control system - Google Patents
Integral sludge incineration process control system Download PDFInfo
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- CN101943413A CN101943413A CN2009100696924A CN200910069692A CN101943413A CN 101943413 A CN101943413 A CN 101943413A CN 2009100696924 A CN2009100696924 A CN 2009100696924A CN 200910069692 A CN200910069692 A CN 200910069692A CN 101943413 A CN101943413 A CN 101943413A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to a control system of an integral sludge incineration device. The system comprises a central control system, a sludge incinerator sub-control system, a pneumatic distributing valve sub-control system, a sludge supply sub-control system, a cooling water sub-control system and a dedusting sub-control system, wherein the central control system is connected with the other control systems through an industrial Ethernet. The system is characterized in that the system also comprises a compound dryer sub-control system which consists of a compound dryer temperature control system, a dry sludge sub-control system and a recirculated air sub-control system. The invention has the following advantages: 1) the operation of the sludge drying system can be accurately controlled; 2) the normal operation of the fine powder separator system can be controlled according to the change of the level of the fine powder separator; and 3) the requirements of environmental protection can be satisfied.
Description
Technical field:
The invention belongs to the control system of sludge of sewage treatment plant burning workshop section, a kind of control system that is particularly suitable for integrated sludge incineration device.
Background technology:
In sewage treatment plant, sludge incineration workshop section is the important processing links of sewage treatment plant, also belongs to the starting stage at present at home, and more advanced city begins in sewage treatment plant sludge incineration workshop section to be set.Sludge treatment technique mainly is divided into sludge drying, outward transport burning process; Sludge drying, burning process; The integrated burning of mud (comprising mummification) technology.The integrated burning of mud belongs to the higher a kind of sludge incineration mode of the ratio of performance to price.Sludge drying, outward transport burning process just carry out sludge drying, transport outward after the mummification, deliver to other places and burn, and treatment process is imperfect, causes energy dissipation easily.Sludge drying, burning process are the sludge treatment techniques that sludge drying, burning are finished in proper order, its shortcoming is sludge drying and burns the time-division and drive into capable, need be to dewatered sludge cooling back storage, waste energy, need simultaneously to build the storage feed bin for dewatered sludge, increase investment, and the danger of potential blast is arranged.The integrated burning process of mud is sludge drying, burns the sludge treatment technique of finishing continuously, and it has avoided above-mentioned technology shortcoming, has improved the ratio of performance to price of system.But its shortcoming is, also do not have at present perfect, at the automation control that the in-line meter detection system and the control system of the integrated burning process of mud are finished the integrated burning process of mud, realize Optimal Control.
Summary of the invention:
The objective of the invention is to design a kind of integrated sludge incineration process control system, this system can control integrated sludge incinerating system continuous, finish sludge drying and burning automatically, and guarantee that the outlet flue gas of sludge incinerator reaches the technical indicator that national regulation requires.
Technical scheme of the present invention is: integrated sludge incineration device control system comprises that batch sub-control system, cooling water sub-control system and dedusting sub-control system of central control system, sludge incinerator sub-control system, pneumatic distribution valve sub-control system, mud form; Central control system is connected by EPA with these control systems; It is characterized in that: also comprise compound drying device sub-control system, this system is made up of compound drying device temperature control system, dewatered sludge sub-control system and circulated air sub-control system; The condenser sub-control system that the circulated air sub-control system comprises the air-introduced machine sub-control system be made up of from the device sub-control system, by air shut-off valve and air-introduced machine segmentation conveyer and the fine ash formed of segmentation separation bin, be made up of condensed water water intaking valve, fluid level controller and outlet valve, the steam-water separator sub-control system of being made up of steam-water separator water intaking valve, fluid level controller and outlet valve are formed; Compound drying device temperature control system by mud batcher and pneumatic distributor form, the dewatered sludge sub-control system is made up of dewatered sludge conveyer and pulverized-coal collector.
Above-mentioned compound drying device temperature sub-control system is according to compound drying device temperature inside, the ash quantity fed of control heat ash, and the temperature of compound drying device is controlled between 85～100 ℃.
The dewatered sludge sub-control system of above-mentioned compound drying device is controlled the pressure reduction of the bed of material of compound drying device inside, the rotating speed of the conveyer of control dewatered sludge, the rotating speed of conveyer is controlled between 25～50Hz of motor stator incoming frequency, and the pressure reduction of the compound drying device bed of material is controlled between 0 ~ 25kPa.
Above-mentioned air-introduced machine sub-control system is the pressure according to compound drying device circulated air outlet, the rotating speed of control air-introduced machine; Circulated air air-introduced machine rotating speed is controlled between 25～50Hz of motor stator incoming frequency, the pressure of compound drying device circulated air outlet is controlled at ± 2000Pa between.
The output control of above-mentioned pulverized-coal collector sub-control system is the material level according to the difference in the pulverized-coal collector separation bin, the rotating speed of grading control fine powder output conveyer; Control material level in the pulverized-coal collector separation bin is: 100mm+20mm, 400mm ± 80mm, 700mm ± 80mm, 900mm ± 80mm.
Advantage of the present invention is: 1, according to running temperature, pressure, the flow of circulated air, the pressure of compound drying device, the mode that adopts complex loop to control is controlled the running of pneumatic distribution valve and compound drying device, can control the operation of sludge drying system accurately.2,, adopt the mode of grading control, the normal operation of control system pulverized-coal collector system according to the variation of the thing position of pulverized-coal collector.3, according to the fire box temperature and the pressure and other parameters of sludge incinerator, adopt the control mode of complex loop, the operation of control incinerator guarantees that incinerator is in operation not produce dioxin, satisfies environmental protection requirement.4, according to the detected value of the sulfur dioxide of the operation scale of incinerator and outlet flue gas, adopt the control mode of complex loop, the control lime stone add operation with purifying column, make the outlet flue gas of incinerator system satisfy environmental protection requirement.5, the online instrument detection system of a cover can be provided with, the service data of integrated sludge incinerating system and the operation of control sludge incinerating system can be detected in real time.
Description of drawings:
Fig. 1 is a control system structured flowchart of the present invention.
Fig. 2 is the central control system structured flowchart.
Fig. 3 is a sludge incineration sub-control system structured flowchart.
Fig. 4 is pneumatic distribution sub-control system structured flowchart.
Fig. 5 is the mud sub-control system structured flowchart of batching.
Fig. 6 is a cooling water sub-control system structured flowchart.
Fig. 7 is a dedusting sub-control system structured flowchart.
Fig. 8 is compound drying device dewatered sludge sub-control system structured flowchart.
Fig. 9 is compound drying device temperature control system structured flowchart.
Figure 10 is an air-introduced machine sub-control system structured flowchart.
Figure 11 is a pulverized-coal collector sub-control system structured flowchart.
Figure 12 is a steam-water separator sub-control system structured flowchart.
Figure 13 is a condenser sub-control system structured flowchart.
The specific embodiment:
As shown in Figure 1: integrated sludge incineration device control system comprises that batch sub-control system, cooling water sub-control system and dedusting sub-control system of central control system, sludge incinerator sub-control system, pneumatic distribution valve sub-control system, mud form; Central control system is connected by EPA with these control systems; It is characterized in that: also comprise compound drying device sub-control system, this system is made up of compound drying device temperature control system, dewatered sludge sub-control system and circulated air sub-control system.Shown in Fig. 3,4,5,6,7: the sludge incinerator sub-control system is made up of with air blast with air-introduced machine and incinerator recirculating fluidized bed, incinerator.The pneumatic distribution valve sub-control system is made up of pneumatic distribution valve, mass flowmenter and air blast; The mud sub-control system of batching is made up of mud delivery pump, intermediate storage tank and disintegrating machine; The cooling water sub-control system is made up of water making device, water tank and force (forcing) pump; The dedusting sub-control system is made up of deduster, compressed air system and grey storehouse.
Shown in Fig. 8-13: compound drying device sub-control system, this system is made up of compound drying device temperature control system, dewatered sludge sub-control system and circulated air sub-control system.The condenser sub-control system that the circulated air sub-control system comprises the air-introduced machine sub-control system be made up of from the device sub-control system, by air shut-off valve and air-introduced machine segmentation conveyer and the fine ash formed of segmentation separation bin, be made up of condensed water water intaking valve, fluid level controller and outlet valve, the steam-water separator sub-control system of being made up of steam-water separator water intaking valve, fluid level controller and outlet valve are formed; Compound drying device temperature control system by mud batcher and pneumatic distributor form, the dewatered sludge sub-control system is made up of dewatered sludge conveyer and pulverized-coal collector.Above-mentioned compound drying device temperature sub-control system is according to compound drying device temperature inside, the ash quantity fed of control heat ash, and the temperature of compound drying device is controlled between 85～100 ℃.The dewatered sludge sub-control system of above-mentioned compound drying device is controlled the pressure reduction of the bed of material of compound drying device inside, the rotating speed of the conveyer of control dewatered sludge, the rotating speed of conveyer is controlled between 25～50Hz of motor stator incoming frequency, and the pressure reduction of the compound drying device bed of material is controlled between 0 ~ 25kPa.Above-mentioned air-introduced machine sub-control system is the pressure according to compound drying device circulated air outlet, the rotating speed of control air-introduced machine; Circulated air air-introduced machine rotating speed is controlled between 25～50Hz of motor stator incoming frequency, the pressure of compound drying device circulated air outlet is controlled at ± 2000Pa between.The output control of above-mentioned pulverized-coal collector sub-control system is the material level according to the difference in the pulverized-coal collector separation bin, the rotating speed of grading control fine powder output conveyer; Control material level in the pulverized-coal collector separation bin is: 100mm ± 20mm, 400mm ± 80mm, 700mm ± 80mm, 900mm ± 80mm.
Claims (5)
1. integrated sludge incineration device control system comprises that batch sub-control system, cooling water sub-control system and dedusting sub-control system of central control system, sludge incinerator sub-control system, pneumatic distribution valve sub-control system, mud form; Central control system is connected by EPA with these control systems; It is characterized in that: also comprise compound drying device sub-control system, this system is made up of compound drying device temperature control system, dewatered sludge sub-control system and circulated air sub-control system; The condenser sub-control system that the circulated air sub-control system comprises the air-introduced machine sub-control system be made up of from the device sub-control system, by air shut-off valve and air-introduced machine segmentation conveyer and the fine ash formed of segmentation separation bin, be made up of condensed water water intaking valve, fluid level controller and outlet valve, the steam-water separator sub-control system of being made up of steam-water separator water intaking valve, fluid level controller and outlet valve are formed; Compound drying device temperature control system by mud batcher and pneumatic distributor form, the dewatered sludge sub-control system is made up of dewatered sludge conveyer and pulverized-coal collector.
2. integrated sludge incineration device control system according to claim 1, it is characterized in that: above-mentioned compound drying device temperature sub-control system is according to compound drying device temperature inside, the ash quantity fed of control heat ash, the temperature of compound drying device is controlled between 85～100 ℃.
3. integrated sludge incineration device control system according to claim 1, it is characterized in that: the dewatered sludge sub-control system of above-mentioned compound drying device is controlled the pressure reduction of the bed of material of compound drying device inside, the rotating speed of the conveyer of control dewatered sludge, the rotating speed of conveyer is controlled between 25～50Hz of motor stator incoming frequency, and the pressure reduction of the compound drying device bed of material is controlled between 0 ~ 25kPa.
4. integrated sludge incineration device control system according to claim 1 is characterized in that: above-mentioned air-introduced machine sub-control system is the pressure according to compound drying device circulated air outlet, the rotating speed of control air-introduced machine; Circulated air air-introduced machine rotating speed is controlled between 25～50Hz of motor stator incoming frequency, the pressure of compound drying device circulated air outlet is controlled at ± 2000Pa between.
5. integrated sludge incineration device control system according to claim 1, it is characterized in that: the output control of above-mentioned pulverized-coal collector sub-control system is the material level according to the difference in the pulverized-coal collector separation bin, the rotating speed of grading control fine powder output conveyer; Control material level in the pulverized-coal collector separation bin is: 100mm ± 20mm, 400mm ± 80mm, 700mm ± 80mm, 900mm ± 80mm.
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| CN200910069692.4A CN101943413B (en) | 2009-07-10 | 2009-07-10 | Integral sludge incineration process control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106896776A (en) * | 2017-03-07 | 2017-06-27 | 北京华宇辉煌生态环保科技股份有限公司 | A kind of scale sludge aerobic fermentation accurate aeration automatic control system |
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| CN100453905C (en) * | 2005-06-21 | 2009-01-21 | 中国科学院工程热物理研究所 | Wet sludge drying and incinerating treatment method employing circulating fluidized bed with combined dryer |
| CN101468868A (en) * | 2007-12-26 | 2009-07-01 | 中国市政工程华北设计研究院 | Innocent incineration integrated processing technique for wet sludge circulating fluid bed |
| CN201606883U (en) * | 2009-07-10 | 2010-10-13 | 中国科学院工程热物理研究所 | Integrated sludge incinerating process control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106896776A (en) * | 2017-03-07 | 2017-06-27 | 北京华宇辉煌生态环保科技股份有限公司 | A kind of scale sludge aerobic fermentation accurate aeration automatic control system |
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Address after: 100190 No. 11 West Fourth Ring Road, Beijing Co-patentee after: China public works North China design studies Zong Yuan company limited Patentee after: Institute of Engineering Thermophysics, Chinese Academy of Sciences Address before: 100190 No. 11 West Fourth Ring Road, Beijing Co-patentee before: North China Municipal Engineering Design & Research Institute Patentee before: Institute of Engineering Thermophysics, Chinese Academy of Sciences |
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