CN102452779A - Novel feed water sludge dewatering process and treatment equipment - Google Patents
Novel feed water sludge dewatering process and treatment equipment Download PDFInfo
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- CN102452779A CN102452779A CN2010105170316A CN201010517031A CN102452779A CN 102452779 A CN102452779 A CN 102452779A CN 2010105170316 A CN2010105170316 A CN 2010105170316A CN 201010517031 A CN201010517031 A CN 201010517031A CN 102452779 A CN102452779 A CN 102452779A
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- dewatering
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- sludge
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Abstract
The invention provides a novel feed water sludge dewatering process and novel feed water sludge dewatering treatment equipment. The process comprises the following steps that: sludge is introduced into a dewatering chamber by a sludge extruder, a heat radiator with a combustor is arranged on the top in the dewatering chamber, a microwave generator is arranged on one side in the dewatering chamber, the sludge is dewatered under the action of the heat radiator and the microwave generator, and waste gas generated in the dewatering process returns to the combustor to be ignited and purified; and a heating jacket or a heating pipe is arranged on the sludge extruder, and high-temperature airflow generated by the combustor passes through the heating jacket or the heating pipe, heats the sludge extruder and is discharged. A microwave and radiation double synergistic effect is adopted, the inside and outside of the sludge are heated, and pollutants in the sludge are fully released, so that dewatering efficiency is greatly improved.
Description
Technical field
The present invention relates to the field of sludge treatment in the city water, be primarily aimed at dewatering process and treatment unit that city water factory and Sewage Plant are handled mud, specifically a kind of novel dewatering process and the treatment facility of giving sewage sludge.
Background technology
City tap-water factory all produces a large amount of mud every day, and therefore contained solid matter will make it comprehensive utilization generally all less than 10% in these mud; At first must it be dewatered, as adopting suction strainer pond filtration method, although the water cut in the mud can effectively be reduced; But the content of its solid matter is still about 30%; Staple in the mud still is a water still at this moment, adopts this dewatering to be in operation simultaneously and has given out a large amount of foul smell, the environment around having influenced.Another method that adopts usually makes mud in drying machine, dewater exactly, and this method is with the air that is heated to 600 ℃, in the baking oven of drying machine, makes sludge dewatering.Adopt the mud after this method dehydration, though solids component increase greatly and have not a particle of stink,, volatile organic pollutant in the mud but is discharged in the air on the one hand, the environment around having influenced; On the other hand, still contain a certain amount of organism in the mud this moment, influenced the quality of brickmaking.Problems such as existing dewatering unit can cause heating uneven when heating mud, and pollutent is residual not only influence the processing of mud, more likely can make residual harmful De dioxins materials in the mud.
Therefore, press for and a kind ofly can satisfy environmental requirement, mud is fully utilized completely, thereby effectively reduce waterworks or Sewage Plant running cost, improve the utilization ratio of mud.
Summary of the invention
The dewatering process that the purpose of this invention is to provide precipitating sludge in a kind of waterworks or the municipal effluent.The present invention adopts microwave and the dual synergy of radiation, simultaneously the inside and outside of mud is heated, and fully fits the pollutent of having put mud inside, has greatly improved dewatering efficiency.
Another object of the present invention provides the required treatment facility of a kind of above-mentioned technology.
The object of the invention can reach through following measure:
A kind of novel feedwater dewatering technology of mud; It comprises the steps: mud is fed in the dewatering station through mud extruder; Top in the dewatering station is provided with the heat radiator of band burner; Side in the dewatering station is provided with microwave generator, and mud dewaters under the effect of heat radiator and microwave generator, and the waste gas that dehydration produces returns and carries out the calcination purification in the said burner; Said mud extruder is provided with heating jacket or heating tube, and the high temperature gas flow that said burner produces is through discharging in said heating jacket or the heating tube and with mud extruder heating back.
Mud extruder in the dewatering station of the present invention is divided into the upper, middle and lower-ranking setting; The end of last layer links to each other with the initiating terminal of following one deck; This connection can adopt the mode of transfer trunk to realize, promptly at the end of last layer and the initiating terminal of following one deck transfer trunk is set, and makes mud change lower floor over to from the upper strata.
The number of heat radiator of the present invention is preferably more than three, and radiation temperature is more than 1200 ℃.The waste gas that dehydration produces can feed said burner more earlier through after the condensing surface heat exchange.The hot water that condensing surface produces can be used for the preheating of mud, also can the pass-out native system.
The invention provides a kind of novel feedwater sludge dewatering treatment equipment; Comprise dewatering station, give mud system, discharge system and mud extruder; Said mud inlet and the mud mouth place that is located at said dewatering station respectively for mud system and discharge system; Said mud extruder is arranged in the said dewatering station, and the top in the wherein said dewatering station is provided with the heat radiator of band burner, and the side in the said dewatering station is provided with microwave generator; Mud extruder in the said dewatering station is divided into the upper, middle and lower-ranking setting, and the end of last layer mud extruder links to each other with the initiating terminal of following one deck mud extruder; Said mud extruder is provided with heating jacket or heating tube, communicates through the high temperature gas flow pipe between said heating jacket or heating tube and the said burner; Be provided with the steam conduit of the waste gas of collecting the dehydration generation in the said dewatering station, this steam conduit links to each other with said burner.
The number of heat radiator is more than three in this equipment, and its power can be regulated according to the size and the processing sludge quantity of equipment.The power of microwave generator also can be regulated according to the size and the processing sludge quantity of equipment.On steam conduit, can also be provided with condensing works, in order to the waste gas heat exchange that will dewater and produce.
Be provided with the distributor box that high temperature gas flow is distributed between high temperature gas flow pipe and heating jacket or the heating tube, the air-flow heat fully absorbed by mud extruder through distribution of air flow.The heating jacket of mud extruder or heating tube can equipment in the outside of mud extruder, the portion that also can set within it, the heating jacket of mud extruder or the pneumatic outlet of heating tube are concentrated and are discharged from chimney.
The present invention can be with the waste gas that produces in dehydration deoxidation calcination to innoxious degree in burner, and heating is used for sludge dewatering indirectly to mud extruder in this equipment thereby the high temperature gas flow that produces after its calcination can be back to again.
The present invention also is provided with microwave generator in dewatering station except the employing heat radiator dewaters to mud, make mud under normal mud extruder transmits, and adopts microwave that the inside of mud is fully vibrated, and fits as much as possible and puts its inner pollutent.Microwave vibrations makes mud produce heat simultaneously, and this inner heat cooperatively interacts with outside radiation, has greatly improved the efficient of sludge dewatering.Find that through experiment under equal conditions, the sludge dewatering treatment equipment that adopts microwave device is than the sludge dewatering treatment equipment that does not adopt microwave device, its dewatering efficiency is high 1.6～2.1 times.Device of the present invention is fully used heat, and has reduced the pollution of mud to environment.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Fig. 2 is the present invention's sludge dewatering treatment device structure synoptic diagram that feeds water.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Equipment of the present invention is as shown in Figure 2, has a dewatering station 118 in this equipment, and this dewatering station 118 is by partition wall 110 and 123 sealings, and in fact said dewatering station is divided into two cells up and down: one is heating chamber 116, and another is a steam chamber 118.There are an opening for feed and a discharge port 127 in dewatering station, and opening for feed connects to the mud system, the external discharge of discharge port 127 system, and mud extruder 117,120 and 121 layerings are installed in the dewatering station 118.Mud extruder 117 is positioned at heating chamber 116 mud extruders 120 and 121 and then is positioned at steam chamber 118, and each mud extruder adopts mechanical system transmission mud, and mud is transported to discharge port 127 through mud extruder extruding several times from opening for feed 103.Mud extruder 117,120 and 121 is the multilayer setting in dewatering station 118, top layer mud extruder 117, middle level mud extruder 120 and lower floor's mud extruder 121.Mud extruder 104,117,120 and 121 has motor 105,107,108 and 111 respectively.The end of last layer mud extruder links to each other through transfer trunk with the initiating terminal of following one deck mud extruder.Microwave generator 114 is arranged on a side of dewatering station 118, towards each mud extruder.Comprise charging place 103 for the mud system, be located at mud extruder 104 under charging place, be located at the transfer trunk 109 in mud extruder 104 exits.The inlet of the mud extruder 117 in the outlet of transfer trunk 109 and the dewatering station 118 links to each other.
When mud gets into opening for feed 103; Through mud extruder 104 mud is delivered to transfer trunk 109; Be sent to again in the top layer mud extruder 117; Mud is sent in the transfer trunk 124 along mud extruder 117 again then, again the mud in the top layer mud extruder 117 is transferred in the mud extruder 120 in middle level through transfer trunk 124, and mud is transferred to transfer trunk 112 along mud extruder 124 with opposite direction again then; Through transfer trunk 112, mud is sent in the mud extruder 121 of lower floor in the mud extruder 120 in middle level again.In mud extruder 121, at this moment the heading of mud has taken place to change and be transferred in the transfer trunk 126 along mud extruder 121.Through transfer trunk 126, mud passes to discharge port 127 from the mud extruder 121 of lower floor.
Each mud extruder all has heating jacket or heating tube, communicates through high temperature gas flow pipe 155 between this heating jacket or heating tube and the said burner.Also be provided with the distributor box 119 that high temperature gas flow is distributed between said high temperature gas flow pipe 155 and said heating jacket or the heating tube.Distributor box 119 makes all has high temperature gas flow that mud extruder 117,120 and 121 is heated in each heating jacket or the heating tube.In the heating jacket of each mud extruder or the last feeding of the heating tube outlet chimney 113.Its temperature of 135 exhaust gas discharged is up to 850 ° from the combustion chamber, and it can carry out thermal dehydration to mud indirectly.
Be provided with the steam conduit 122 of the waste gas of collecting the dehydration generation in the dewatering station 118, this steam conduit 122 communicates with condensing surface 125, and condensing surface 125 links to each other with burner.In the dehydration, water vapor can directly flow to sweating room 118 from heating chamber 116, through steam conduit 122 water vapor is drawn onto condensing surface 125 from dewatering station 118.In condensing chamber 125, after being condensed, steam obtains hot water and waste gas, because condensation of gas causes reducing of its volume and steam conduit 122 to belong to closed system, the negative pressure of vacuum of generation is passed through steam conduit 122 with the steam sucking-off in the steam chamber 118.
When the heat in heating chamber 116 and the steam chamber 118 makes mud that vaporization take place; Gas that is produced and water vapor are drawn onto in the condensing surface 125 simultaneously; Condensing surface 125 condensed waste gas feed in the burner again, in burner, in the following deoxidation calcination above 1200 ℃ to innoxious degree, abolish deleterious dioxin-like compound wherein; The high temperature gas flow that produces after its calcination is back to distributor box 119 through high temperature gas flow pipe 155, is used for sludge dewatering indirectly thereby each mud extruder heated.
In conjunction with Fig. 1 and aforesaid device; When dehydration is carried out; Precipitating sludge is earlier through carrying out in the dewatering station for the mud system in waterworks or the municipal effluent, and parallel motion from top to bottom in the transmission of mud extruder, and heat radiator and microwave generator act synergistically to mud in moving process; Make the mud vaporization, the exsiccant powdery or the granular sludge that finally obtain.After the gas sampling condensation that produces in the dehydration vaporescence; Return in the burner; Calcination purifies under 1250～1900 ℃ high temperature, purifies the high temperature gas flow of back generation and the high temperature gas flow of burner generation itself and leads to back in the heating jacket or heating tube of mud extruder again, and mud extruder is heated; After making sludge dewatering indirectly, discharge the cigarette fontanel.The hot water that condensing surface produces can be used for the preheating of mud.
Claims (8)
1. novel feedwater dewatering technology of mud; It is characterized in that comprising the steps: mud is fed in the dewatering station through mud extruder; Top in the dewatering station is provided with the heat radiator of band burner; Side in the dewatering station is provided with microwave generator, and mud dewaters under the effect of heat radiator and microwave generator, and the waste gas that dehydration produces returns and carries out the calcination purification in the said burner; Said mud extruder is provided with heating jacket or heating tube, and the high temperature gas flow that said burner produces is through discharging in said heating jacket or the heating tube and with mud extruder heating back.
2. feedwater dewatering technology of mud according to claim 1 is characterized in that the mud extruder in the said dewatering station is divided into the upper, middle and lower-ranking setting, and the end of last layer links to each other with the initiating terminal of following one deck.
3. feedwater dewatering technology of mud according to claim 1, the number that it is characterized in that said heat radiator is more than three.
4. feedwater dewatering technology of mud according to claim 1, the waste gas that it is characterized in that said dehydration generation feeds said burner more earlier through after the condensing surface heat exchange.
5. novel feedwater sludge dewatering treatment equipment; Comprise dewatering station, give mud system, discharge system and mud extruder; Said mud inlet and the mud mouth place that is located at said dewatering station respectively for mud system and discharge system; Said mud extruder is arranged in the said dewatering station, it is characterized in that the top in the said dewatering station is provided with the heat radiator of band burner, and the side in the said dewatering station is provided with microwave generator; Mud extruder in the said dewatering station is divided into the upper, middle and lower-ranking setting, and the end of last layer mud extruder links to each other with the initiating terminal of following one deck mud extruder; Said mud extruder is provided with heating jacket or heating tube, communicates through the high temperature gas flow pipe between said heating jacket or heating tube and the said burner; Be provided with the steam conduit of the waste gas of collecting the dehydration generation in the said dewatering station, this steam conduit links to each other with said burner.
6. novel feedwater sludge dewatering treatment equipment according to claim 5, the number that it is characterized in that said heat radiator is more than three.
7. novel feedwater sludge dewatering treatment equipment according to claim 5 is characterized in that said steam conduit is provided with condensing works.
8. novel feedwater sludge dewatering treatment equipment according to claim 5 is characterized in that also being provided with the distributor box that high temperature gas flow is distributed between said high temperature gas flow pipe and said heating jacket or the heating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105170316A CN102452779A (en) | 2010-10-22 | 2010-10-22 | Novel feed water sludge dewatering process and treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105170316A CN102452779A (en) | 2010-10-22 | 2010-10-22 | Novel feed water sludge dewatering process and treatment equipment |
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| CN102452779A true CN102452779A (en) | 2012-05-16 |
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| CN2010105170316A Pending CN102452779A (en) | 2010-10-22 | 2010-10-22 | Novel feed water sludge dewatering process and treatment equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746413A (en) * | 2016-12-30 | 2017-05-31 | 泸州市聚源电力设备有限公司 | Sludge microwave plasma drying particles system |
-
2010
- 2010-10-22 CN CN2010105170316A patent/CN102452779A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746413A (en) * | 2016-12-30 | 2017-05-31 | 泸州市聚源电力设备有限公司 | Sludge microwave plasma drying particles system |
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Application publication date: 20120516 |