CN204588965U - Municipal sludge deep dehydration system - Google Patents
Municipal sludge deep dehydration system Download PDFInfo
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- CN204588965U CN204588965U CN201520222625.2U CN201520222625U CN204588965U CN 204588965 U CN204588965 U CN 204588965U CN 201520222625 U CN201520222625 U CN 201520222625U CN 204588965 U CN204588965 U CN 204588965U
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- sludge
- mud
- plasma body
- broken wall
- thickner
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Abstract
The utility model discloses a kind of municipal sludge deep dehydration system, this system comprises sludge condensation system, plasma body broken wall system, dewatering system and delivery system; Wherein, described sludge condensation system comprises for the thickner carrying the submersible sewage pump of pending mud, carry out processing for the pending mud sent here by submersible sewage pump, the storage pond composition being used for receiving mud after thickner concentration; Described plasma body broken wall system completes pond by reaction of low temperature plasma device and conditioning and forms; Described dewatering system is made up of sewage sludge feed pump, autoclave diaphragm plate-and-frame filter press, squeeze water system, the water system that washes cloth, air system; Described delivery system is made up of worm conveyor, dewatered sludge bucket.Both effectively can solve the high problem of moisture content of the cake, the pretreated expense of broken wall can also be reduced simultaneously, reduce joint disposal cost.
Description
Technical field
The utility model relates to municipal sewage plant sludge pretreatment and deep dehydration technical field thereof, specifically municipal sludge deep dehydration system.
Background technology
About 2200, the municipal sewage plant that China is current, along with the quickening of Urbanization Process In China, municipal sewage plant still constantly increases, and sludge yield is also in the gesture maintained sustained and rapid growth.According to incompletely statistics, the municipal administration that the whole nation is annual produces moisture 80% wets mud more than 3,000 ten thousand tons, and increases progressively with about 10% year by year.
For a long time, China in sewage work from being designed into operation, the tendency of ubiquity " the light mud of heavy water ".Sewage disposal plant effluent water quality is up to standard, but specific resistance to filtration is in slow state of development substantially.Sludge treatment refers to and will be full of the primary mud of moisture content, makes it reach stabilization of state by concentrated, dehydration and follow-up bioactivation process.Sludge disposal refers to the final process carried out after sludge reduction, stabilization treatment.
At present, China's town sewage plant generally adopts mechanical system to dewater to mud, and dewatered sludge water ratio is generally 75 ~ 85%, and bond in colloid shape.Feature that mud has " four is high ": one is that water ratio is high; Two is that organic content is high, is easy to rotten stench; Three is that heavy metal content is higher; Four is that germ content is high, containing a large amount of bacteriums, parasite, virus.Therefore, the title that mud has " environment killer ", therefore mud is considered as " hazardous substance " by many countries in the world, goes to administer after mud causes secondary pollution again, will pay higher cost.Therefore be the top priority of environmental engineering to the disposal of mud.
Sludge dewatering is the prerequisite of sludge disposal, only has and mud moisture content is down to less than 50%, and comprehensive utilization of resources just likely.The key of sludge disposal technology takes away moisture content, but the characteristic of mud determines again the difficulty of sludge dewatering treatment.In mud, institute's water content is roughly divided into four classes: A, interstitial water; B, capillary Bound moisture; C, surface adsorption water; D, internal water.Interstitial water is also called " free water ", can press filtration for physically.Latter three kinds are called " irreducible water ", and irreducible water can not remove by simple mechanical process, causes moisture content of the cake high, cannot meet the requirements of disposal requirement.
Utility model content
The purpose of this utility model is to provide a kind of sludge treating system, both effectively can solve the high problem of moisture content of the cake, can also reduce the pretreated expense of broken wall simultaneously, reduces joint disposal cost.
The purpose of this utility model is achieved through the following technical solutions:
Municipal sludge deep dehydration system, comprises sludge condensation system, plasma body broken wall system, dewatering system and delivery system; Wherein, described sludge condensation system comprises for the thickner carrying the submersible sewage pump of pending mud, carry out processing for the pending mud sent here by submersible sewage pump, the storage pond composition being used for receiving mud after thickner concentration; Described plasma body broken wall system completes pond by reaction of low temperature plasma device and conditioning and forms; Described dewatering system is made up of sewage sludge feed pump, autoclave diaphragm plate-and-frame filter press, squeeze water system, the water system that washes cloth, air system; Described delivery system is made up of the part such as worm conveyor, dewatered sludge bucket.
In the utility model, described reaction of low temperature plasma device is made up of reactor shell, the plasma body reliever put in reactor shell and the power supply to described plasma body reliever electrode power supply put outward in reactor shell, air feeder, have mud inlet in described lower housing portion, top has mud mouth; Described plasma body reliever be included in plant in reactor shell electrode tube, be plugged on the anode in described electrode tube and be flat on reactor bottom negative electrode; The air outlet of described air feeder passes in described electrode tube, and described electrode tube tube wall has fluid orifice.
The utility model adopts technique scheme, sludge condensation system makes moisture percentage in sewage sludge be reduced to about 95%, plasma body broken wall system carries out oxygenolysis to mud, reach cell wall breaking effect, sludge press filtration is become the sludge cake of water ratio less than 50% by the autoclave diaphragm plate-and-frame filter press in dewatering system.Sludge cake is delivered to dewatered sludge bucket and keeps in by the worm conveyor in delivery system, then entrucking outward transport.
The effect that the utility model is compared with prior art had:
1. the employing low-temperature plasma reactor body designed by the utility model carries out the mode of broken wall, while taking into account sludge cell wall breakage effect, realizes simple operation.
2. low cost.Reaction of low temperature plasma device equipment is simple, technology maturation; In working cost, low-temperature plasma ozone broken wall is lower than prices such as enzyme process of the prior art, salt methods, therefore, uses the utility model economic benefit more obvious.
3. shell-broken effect is obvious, and can achieve many things at one stroke.Through test, use the utility model sludge cell wall breakage obvious, the needs of municipal sludge dehydration can be met.After process, sludge dewatering reaches less than 50% to moisture content of the cake.While reducing moisture content of the cake, can also organic content be reduced, reduce foul smell and produce.
Accompanying drawing explanation
Fig. 1 is the structural representation of reaction of low temperature plasma device in the utility model.
Embodiment
Sludge treating system of the present utility model, comprises sludge condensation system, plasma body broken wall system, dewatering system and delivery system.
Sludge condensation system comprises for the belt thickener machine carrying the submersible sewage pump of pending mud, carry out processing for the pending mud sent here by submersible sewage pump, the storage pond composition being used for receiving mud after thickner concentration.The water ratio of the pending mud that submersible sewage pump is sent here is 98%, and flocculated by flocculation agent in belt thickener machine is separated free water again under gravity filtration effect, and this step can make moisture percentage in sewage sludge be reduced to about 95%.
Mud in mud storage pond through sludge pumping to plasma body broken wall system.
Plasma body broken wall system completes pond by reaction of low temperature plasma device and conditioning and forms.As shown in Figure 1, reaction of low temperature plasma device is made up of reactor shell 1, the plasma body reliever put in reactor shell and the high-voltage DC power supply 2 to described plasma body reliever electrode power supply put outward in reactor shell and air feeder 4.Described plasma body reliever be included in plant in reactor shell electrode tube 5, be plugged on the anode 3 in described electrode tube and be flat on reactor bottom negative electrode 6.Have mud inlet 8 in described lower housing portion, top has mud mouth 9; Mud to be sent into etc. in vitro reactor from mud inlet 8 by submersible sewage pump, and the mud after process is overflowed by mud mouth 9.The air outlet of air feeder 4 passes in electrode tube 5, and the tube wall of electrode tube 5 has fluid orifice, and air feeder 4 can be oxygenerator or air compressor machine, preferred oxygenerator.The gas that air feeder 4 provides penetrates a large amount of micro-bubbles 7 through fluid orifice to surrounding, stirs mud.The voltage of adjustment high-voltage DC power supply 2, makes high voltage electrode 3 discharge, thus between anode and electrolyte solution interface, produces a large amount of active substance hydrogen peroxide, carry out oxygenolysis, reach cell wall breaking effect simultaneously to the microorganism in mud.The mud completing broken wall treatment through plasma reactor enters conditioning and completes pond.
Dewatering system is made up of sewage sludge feed pump, autoclave diaphragm plate-and-frame filter press, squeeze water system, the water system that washes cloth, air system.The mud nursed one's health in pond sends into autoclave diaphragm plate-and-frame filter press by fresh feed pump, by filter cloth effect, partial sludge mutually interior contained humidity can outwards be got rid of, high pressure water is injected again by squeeze water system, utilize membrane tension repeatedly to carry out powerful extrusion dehydration effect to mud, mud is finally become the sludge cake of water ratio less than 50% by press filtration.
Described delivery system is made up of the part such as worm conveyor, dewatered sludge bucket.In the utility model, the mud conveying between each system completes by worm conveyor, and worm conveyor is shaftless, is convenient to the conveying of solid and thickness object, there will not be screw shaft to stick problem.Worm conveyor transport capacity is large, and screw rod shell seal, can prevent smelling out.Dry mud cake after dehydration enters dewatered sludge bucket by worm conveyor and keeps in, then entrucking outward transport.
When the utility model uses, be first that the active sludge of 98% is with 10m by sewage work's water ratio
3the flow of/h is transported in thickening equipment by sludge pump, is concentrated by thickner, obtains the thickened sludge of water ratio 95%.Be transported in low temperature plasma oxidation reactor by thickened sludge by sludge pump, start plasma ozone generating unit, controlling plasma body voltage is 620V, and current control is at 10-50A, and air Boiler pressure control is at 5-10m
3/ min, in 10-30 minutes reaction times, the mud through low temperature plasma oxidation process enters conditioner, and controlling agitator motor operating frequency in conditioner is 30Hz, stirs 20min, obtains the conditioning mud that modification is good.Conditioning mud is delivered to autoclave diaphragm plate-and-frame filter press by sludge pump dewater, obtains the dewatered sludge of water ratio 50%, the dehydration filtrate in dehydration is back to the sewage treatment unit of sewage work.
With worm conveyor, deep dehydration mud is delivered to dewatered sludge bucket, finally by dewatered sludge, auxiliary agent, the ratio in 5: 5 is delivered to that kneading machine is shaping makes sludge fuel, and measuring propellant combination calorific value is 3500kcal/kg, reach brown coal calorific value, electric power supply plant and Thermal Corp use.
The foregoing is only preferred embodiment of the present utility model, the municipal sludge that the utility model patent is discharged mainly for sewage treatment plants, the utility model patent is equally applicable to for the paper mill sludge of other difficult dehydration, greasy filth.Not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a municipal sludge deep dehydration system, is characterized in that, this system comprises sludge condensation system, plasma body broken wall system, dewatering system and delivery system; Wherein, described sludge condensation system comprises for the thickner carrying the submersible sewage pump of pending mud, carry out processing for the pending mud sent here by submersible sewage pump, the storage pond composition being used for receiving mud after thickner concentration; Described plasma body broken wall system completes pond by reaction of low temperature plasma device and conditioning and forms; Described dewatering system is made up of sewage sludge feed pump, autoclave diaphragm plate-and-frame filter press, squeeze water system, the water system that washes cloth, air system; Described delivery system is made up of worm conveyor, dewatered sludge bucket.
2. municipal sludge deep dehydration system according to claim 1, it is characterized in that, described reaction of low temperature plasma device is made up of reactor shell, the plasma body reliever put in reactor shell and the power supply to described plasma body reliever electrode power supply put outward in reactor shell, air feeder, have mud inlet in described lower housing portion, top has mud mouth; Described plasma body reliever be included in plant in reactor shell electrode tube, be plugged on the anode in described electrode tube and be flat on reactor bottom negative electrode; The air outlet of described air feeder passes in described electrode tube, and described electrode tube tube wall has fluid orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222625.2U CN204588965U (en) | 2015-04-14 | 2015-04-14 | Municipal sludge deep dehydration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222625.2U CN204588965U (en) | 2015-04-14 | 2015-04-14 | Municipal sludge deep dehydration system |
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| Publication Number | Publication Date |
|---|---|
| CN204588965U true CN204588965U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520222625.2U Expired - Fee Related CN204588965U (en) | 2015-04-14 | 2015-04-14 | Municipal sludge deep dehydration system |
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| Country | Link |
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| CN (1) | CN204588965U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712595A (en) * | 2015-12-25 | 2016-06-29 | 泸州市聚源电力设备有限公司 | Advanced treatment system for sludge |
| CN106746407A (en) * | 2016-12-28 | 2017-05-31 | 山东益源环保科技有限公司 | A kind of technique for improving excess sludge dewatering |
| CN111170594A (en) * | 2020-01-09 | 2020-05-19 | 太原工业学院 | Method for digesting residual activated sludge by largely breaking walls of cold plasma |
| CN114409226A (en) * | 2021-12-21 | 2022-04-29 | 中国光大绿色技术创新研究院有限公司 | Low-temperature plasma device for residual sludge wall breaking digestion |
-
2015
- 2015-04-14 CN CN201520222625.2U patent/CN204588965U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712595A (en) * | 2015-12-25 | 2016-06-29 | 泸州市聚源电力设备有限公司 | Advanced treatment system for sludge |
| CN105712595B (en) * | 2015-12-25 | 2018-06-01 | 泸州市聚源电力设备有限公司 | A kind of system of advanced treating sludge |
| CN106746407A (en) * | 2016-12-28 | 2017-05-31 | 山东益源环保科技有限公司 | A kind of technique for improving excess sludge dewatering |
| CN106746407B (en) * | 2016-12-28 | 2020-08-21 | 山东益源环保科技有限公司 | Process for improving dehydration performance of excess sludge |
| CN111170594A (en) * | 2020-01-09 | 2020-05-19 | 太原工业学院 | Method for digesting residual activated sludge by largely breaking walls of cold plasma |
| CN114409226A (en) * | 2021-12-21 | 2022-04-29 | 中国光大绿色技术创新研究院有限公司 | Low-temperature plasma device for residual sludge wall breaking digestion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190414 |