CN202898208U - Full process automatic control system for deep sludge dehydration - Google Patents
Full process automatic control system for deep sludge dehydration Download PDFInfo
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- CN202898208U CN202898208U CN2012206445664U CN201220644566U CN202898208U CN 202898208 U CN202898208 U CN 202898208U CN 2012206445664 U CN2012206445664 U CN 2012206445664U CN 201220644566 U CN201220644566 U CN 201220644566U CN 202898208 U CN202898208 U CN 202898208U
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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 utility model discloses a full process automatic control system for deep sludge dehydration. The system comprises a sludge pre-concentration control system, a sludge tempering control system, a deep sludge dehydration control system and a sludge cake transmission control part. The whole deep sludge dehydration process is controlled on the basis of the optimization algorithm. The system has the design concept that the operation cost in the boundary range set by users is always the lowest, and the total performance is maintained at the optimum state. The real-time monitoring is provided for the sludge modulation and deep dehydration integral process, the chemical dosage in the set target range is the lowest, the treatment capability is the highest, the obtained sludge cake conforms to the set requirements, and the system is enabled to realize the stable and continuous optimum operation.
Description
Technical field
The utility model relates to the technical field of sludge treatment, particularly a kind of deeply dehydrating sludge whole process automatic control system based on optimized algorithm.
Background technology
Along with the raising of municipal effluent and industrial sewage rejection and the improvement of sewage treating efficiency, so that increase sharply in the mud total amount.1214 of China built sewage works in 2009, wastewater treatment rate reaches 75.25%, approximately 9,000,000 tons of dewatered sludge ultimate productions.The domestic city Sewage Plant generally adopts mechanical system to sludge dewatering treatment, and filter cake moisture content far can not satisfy up-to-date environmental requirement generally 75 ~ 85%.Sludge landfill and compost dispose and must be lower than 60% by water ratio, and Sewage Plant transports factory circle to save as purpose with mud, must be with sludge dewatering to water ratio below 50%.Modified and the deep dehydration integral process of mud is successfully applied in recent years, can be with sludge dewatering to 50 ~ 60%.The sludge treatment expense becomes the integral part of sewage treatment process, and under the pressure of requirements at the higher level and the innoxious requirement of dewatered sludge resource utilization of environmental management, the sludge treatment expense will be higher in future.Therefore, guaranteeing that the sludge dewatering process is moved under the optimization situation becomes more and more important.
Because domestic sludge treatment starts late, as far as we know, rarely has report based on the program control system of chemical conditioning deep dehydration technique.The factor that affects sludge dewatering is a lot, and the characteristic of mud itself is one of them.Be subjected to the impact of former water and the impact for the treatment of process, charging mud is in continuous change state, make system be in not good enough operating mode operation, cause the water ratio of mud cake to raise, reagent consumption is larger, therefore need a kind of sludge dewatering program control system badly and guarantee that technological process is under the optimum operating condition all the time and move.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art with not enough, and the Controlling System of the modified and deep dehydration integrated process of a kind of mud is provided.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of deeply dehydrating sludge whole process of the utility model automatic control system comprises mud pre-concentration control section, the modified control section of mud, deeply dehydrating sludge control section and mud cake transfer control part; Described mud pre-concentration control section control mud pre-concentration process section; The modified control section control adding of agent of described mud and modified process; Described deeply dehydrating sludge control section control filter-press dehydration technique section; Described mud cake transfer control is partly controlled mud cake and is transmitted process section; This whole process automatic control system adopts on-site cable and instrumentation to connect, and each measuring parameter is introduced Optimal Control System, and chemical feeding quantity and working time are revised.
Preferably, mud pre-concentration control section is comprised of gravity concentration tank, liquidometer, motorized valve and the first sludge pump, and described liquidometer is installed in the gravity concentration tank, and described the first sludge pump is connected to the gravity concentration tank by motorized valve.Mud pre-concentration control section is determined the settling time according to mud gravity settling diagram database, by liquid level control motorized valve supernatant liquor is slowly discharged.
Preferably, the modified control section of mud is taken into account motorized valve and is formed by dispensing canister, the modified tank of mud, the second sludge pump, sludge concentration meter, under meter, liquid level, described the second sludge pump connects respectively gravity concentration tank and the modified tank of mud, and described grug feeding jar connects the modified tank of mud; Described sludge concentration meter and under meter are arranged on the pipeline between the second sludge pump and the modified tank of mud, the modified control section of mud is according to added amount of chemical and dewatering performance of sludge diagram database, take into account data on flows by sludge concentration and determine chemical feeding quantity, control dosing uninterrupted.
Preferably, the deeply dehydrating sludge control section is comprised of fresh feed pump, diaphragm filter press, squeezing water pump, squeezing water tank and under meter, described fresh feed pump connects diaphragm filter press, described squeezing water pump one end connects diaphragm filter press, the other end connects the squeezing water tank, described under meter is arranged on the pressure filter filtrate outlet pipeline, ratio according to pressure filtration yielding water flow and feed rate, adjust the fresh feed pump frequency, the control feed pressure, when water flow and inlet amount flow ratio stop fresh feed pump during less than set(ting)value, open the squeezing water pump, otherwise alert program is set; When water flow stops to squeeze water pump during less than another set(ting)value, pressure-filtering process finishes.
Preferably, described mud cake transfer control partly comprises belt conveyor and moisture percentage in sewage sludge determinator, and moisture percentage in sewage sludge on-line determination instrument is installed in the conveyer top, then transports outward if moisture percentage in sewage sludge is lower than set(ting)value, otherwise increases squeezing time and dosing.
The utility model has following advantage and effect with respect to prior art:
1, the utility model is based on optimized algorithm whole deep sludge dewatering process is carried out process control, and the design concept of system is to make dehydration running cost in the bounds that the user sets minimum all the time, and overall performance is kept the best.Simultaneously the utility model provides Real Time Monitoring for sludge conditioning and deep dehydration integral process, makes the mud cake that pharmaceutical quantities is minimum, processing power is maximum, obtain meet the setting requirement in the target setting scope, guarantees the optimized running that system stability continues.
2, Controlling System of the present utility model makes up the running cost database corresponding with different technical parameters, can guarantee that processing parameter moves under the most efficient operating mode, reduces the sludge dewatering running cost.
Description of drawings
Fig. 1 .a is the utility model deep sludge dewatering process schema;
Fig. 1 .b is the deep sludge dewatering process schema;
Fig. 2 is deeply dehydrating sludge control method schema.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
The utility model deeply dehydrating sludge treatment process comprises mud pre-concentration part, the modified part of mud shown in Fig. 1 .a, Fig. 1 .b, deeply dehydrating sludge part and mud cake transport portion.Operational path is described: second pond 1 mud delivers into gravity concentration tank 3,4 through the first sludge pump 2, in the precipitation of gravity concentration tank through 2-7 hour, mud-water separation.The actual liquid level that detects by liquidometer and set(ting)value are relatively controlled water outlet motorized valve 14 ~ 16,17 ~ 19 switching.Mud after concentrated delivers into the modified tank 5 of mud, 6 with the second sludge pump 9, and the mud discharging after motorized valve 20,21 controls concentrate is carried, and enters sludge concentration meter 22 is installed on the sludge pipe in the modified tank.Dispensing canister 10,11 adds respectively the medicament through mixing, and adds respectively in the modified tank 5 of mud, 6 through medicament preparing pump 12,13.Squeeze into diaphragm filter press 23 through the mud after modified with the 3rd sludge pump 7, when charging stops, open squeezing water pump 26, the squeezing water pump is connected with diaphragm filter press by motorized valve 27, squeezing water tank 25 is connected with diaphragm filter press by motorized valve 28, draw water and begin to carry out the barrier film press filtration from squeezing water tank 25, after the barrier film pressure-filtering process finished, mud cake was carried outward by belt conveyor 24.In addition, carry out on-line analysis by 29 pairs of moisture content of the cake of moisture percentage in sewage sludge determinator, wherein, Fig. 1 .a and Fig. 1 .b couple together by web member 8.
As shown in Figure 2, the present embodiment deep dehydration method for sludge and automatic control system comprise the steps:
S1, mud is conveyed into mud gravity concentration tank, sets the sludge settling time according to the database settlement-time curve, after the mud-water separation, according to the liquid level value of supernatant liquor, the switching of control supernatant liquor water outlet motorized valve;
S2, the mud after concentrated are sent into the modified tank of mud with spiral pump, enter the sludge concentration meter is installed on the sludge pipe in the modified tank, according to chemical feeding quantity and sludge concentration empirical curve database, calculate the chemical feeding quantity flow, control the chemical feeding quantity of modified tank, agitator motor and medicament preparing pump interlock, and the control of employing time;
S3, enter diaphragm filter press through the mud after modified, by detecting the ratio adjustment fresh feed pump frequency of pressure filter outlet conduit and sewage sludge feed amount, along with ratio reduces and increases frequency, rev up; When water flow and feed rate stop fresh feed pump during less than set(ting)value, start press pump and valve, begin to carry out the barrier film press filtration, close when water flow squeezes pump valve during less than set(ting)value this moment, finishes pressure-filtering process; Only have when fresh feed pump stops just unlatching and squeeze water pump, otherwise alarm activation and output function guide;
S4, mud cake are carried outward by transfer roller, above travelling belt, the moisture percentage in sewage sludge detector are installed, and enter when water ratio is lower than set(ting)value in the mud cake wagon box, carry out air-dry processing otherwise carry out the mummification bucket.In addition, the transfer roller operating rate is adjusted mud cake transfer roller speed by the calculation control of mud cake amount in the charging;
In step S1, by sludge concentration meter monitoring charging sludge concentration, determine dosage, and be aided with pH control correction.
Among the step S3, by pressure filter feed rate and water flow monitoring, draw the ratio of water flow and feed rate, the frequency of control fresh feed pump is adjusted feed pressure.
Among the step S4, also comprise by charging sludge quantity, sludge concentration and feed time monitoring, calculate the mud cake generation, control travelling belt speed.After step S4, by the moisture percentage in sewage sludge determinator moisture content of the cake is carried out on-line analysis, if moisture content of the cake is higher than set(ting)value, then increase squeezing time and dosing.
Set up medicament chemical feeding quantity and dewatering performance of sludge diagram database, sludge settling diagram database, sludge dewatering influence factor database;
Foundation makes up database with parameters such as the power consumption of major equipment in the deep dehydration process and water consumption, medicament expenses, by data filing, statistics and analyze, for further optimization dewatering process provides data refer;
Detect the charging sludge concentration by the sludge concentration meter, determine optimal coagulant dose, be aided with pH control and revise, thereby reduce the medicine consumption; By pressure filter feed rate and water flow monitoring, draw the ratio of water flow and feed rate, the frequency of control fresh feed pump is adjusted feed pressure, optimizes the operation condition of pump.By charging sludge quantity, sludge concentration and feed time monitoring, calculate the mud cake generation, control travelling belt speed, the operation condition of optimization travelling belt.Whole Controlling System is controlled the dewatering technology of mud process automatically based on optimized algorithm, has optimized operation condition, improves the work-ing life of equipment, has reduced energy consumption and medicine consumption.
Above-described embodiment is the better embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (5)
1. a deeply dehydrating sludge whole process automatic control system is characterized in that, comprises mud pre-concentration control section, the modified control section of mud, deeply dehydrating sludge control section and mud cake transfer control part; Described mud pre-concentration control section control mud pre-concentration process section; The modified control section control adding of agent of described mud and modified process; Described deeply dehydrating sludge control section control filter-press dehydration technique section; Described mud cake transfer control is partly controlled mud cake and is transmitted process section; This whole process automatic control system adopts on-site cable and instrumentation to connect, and each measuring parameter is introduced Optimal Control System, and chemical feeding quantity and working time are revised.
2. deeply dehydrating sludge whole process automatic control system according to claim 1, it is characterized in that, mud pre-concentration control section is comprised of gravity concentration tank, liquidometer, motorized valve and the first sludge pump, described liquidometer is installed in the gravity concentration tank, and described the first sludge pump and motorized valve are connected to the gravity concentration tank.
3. deeply dehydrating sludge whole process automatic control system according to claim 1, it is characterized in that, the modified control section of mud is taken into account motorized valve and is formed by dispensing canister, the modified tank of mud, the second sludge pump, sludge concentration meter, under meter, liquid level, described the second sludge pump connects respectively gravity concentration tank and the modified tank of mud, and described grug feeding jar connects the modified tank of mud; Described sludge concentration meter and under meter all are arranged on the pipeline between the second sludge pump and the modified tank of mud.
4. deeply dehydrating sludge whole process automatic control system according to claim 1, it is characterized in that, the deeply dehydrating sludge control section is comprised of fresh feed pump, diaphragm filter press, squeezing water pump, squeezing water tank and under meter, described fresh feed pump connects diaphragm filter press, described squeezing water pump one end connects diaphragm filter press, the other end connects the squeezing water tank, and described under meter is arranged on the diaphragm filter press filtrate outlet pipeline.
5. deeply dehydrating sludge whole process automatic control system according to claim 1 is characterized in that, described mud cake transfer control partly comprises belt conveyor and moisture percentage in sewage sludge determinator, and moisture percentage in sewage sludge on-line determination instrument is installed in the conveyer top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012206445664U CN202898208U (en) | 2012-11-28 | 2012-11-28 | Full process automatic control system for deep sludge dehydration |
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| CN2012206445664U CN202898208U (en) | 2012-11-28 | 2012-11-28 | Full process automatic control system for deep sludge dehydration |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936089A (en) * | 2012-11-28 | 2013-02-20 | 广州中国科学院沈阳自动化研究所分所 | Automatic control system of sludge deep dewatering overall process and treatment method |
| CN104941274A (en) * | 2015-05-29 | 2015-09-30 | 景津环保股份有限公司 | Frame filter sludge treatment process pipe-line system |
| CN107953450A (en) * | 2017-11-30 | 2018-04-24 | 中南大学 | A kind of denseness regulating device of shield machine discarded slurry |
| CN109634245A (en) * | 2018-12-29 | 2019-04-16 | 河南省福可思环保科技有限公司 | Unattended artificial intelligent control system for biochemical sludge dehydration and drying technique |
| CN113213729A (en) * | 2021-04-28 | 2021-08-06 | 上海凌逍环保科技有限公司 | Intelligent integrated sludge deep dehydration system and application method thereof |
| CN115477456A (en) * | 2022-09-30 | 2022-12-16 | 青岛富祥合实业有限公司 | Sludge dewatering treatment method and device |
-
2012
- 2012-11-28 CN CN2012206445664U patent/CN202898208U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936089A (en) * | 2012-11-28 | 2013-02-20 | 广州中国科学院沈阳自动化研究所分所 | Automatic control system of sludge deep dewatering overall process and treatment method |
| CN102936089B (en) * | 2012-11-28 | 2014-09-17 | 广州中国科学院沈阳自动化研究所分所 | Automatic control system of sludge deep dewatering overall process and treatment method |
| CN104941274A (en) * | 2015-05-29 | 2015-09-30 | 景津环保股份有限公司 | Frame filter sludge treatment process pipe-line system |
| CN107953450A (en) * | 2017-11-30 | 2018-04-24 | 中南大学 | A kind of denseness regulating device of shield machine discarded slurry |
| CN109634245A (en) * | 2018-12-29 | 2019-04-16 | 河南省福可思环保科技有限公司 | Unattended artificial intelligent control system for biochemical sludge dehydration and drying technique |
| CN113213729A (en) * | 2021-04-28 | 2021-08-06 | 上海凌逍环保科技有限公司 | Intelligent integrated sludge deep dehydration system and application method thereof |
| CN115477456A (en) * | 2022-09-30 | 2022-12-16 | 青岛富祥合实业有限公司 | Sludge dewatering treatment method and device |
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Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |