CN209583949U - The joint processing system of municipal sludge and desulfurization wastewater - Google Patents
The joint processing system of municipal sludge and desulfurization wastewater Download PDFInfo
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- CN209583949U CN209583949U CN201821691257.6U CN201821691257U CN209583949U CN 209583949 U CN209583949 U CN 209583949U CN 201821691257 U CN201821691257 U CN 201821691257U CN 209583949 U CN209583949 U CN 209583949U
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Abstract
The utility model relates to Waste Disposal Technology fields, disclose the joint processing system of a kind of municipal sludge and desulfurization wastewater.The utility model includes sludge mixing kettle, heat-exchanger rig, disc dryer and coal-burning boiler；The discharge port of sludge mixing kettle is connected by the cold burden import of pipeline and heat-exchanger rig, the hot material outlet of heat-exchanger rig is connect by pipeline with disc dryer, the discharge port of disc dryer passes through coal-fired transmission device and connect with coal-burning boiler, disc dryer is connected by the hot material import of high temperature exhaust steam pipeline and heat-exchanger rig, the cold burden outlet of heat-exchanger rig is connect by low-temperature steam exhaust pipeline with coal-burning boiler, the exhanst gas outlet of coal-burning boiler is connected to by flue with desulfurizer, and desulfurizer is connected to by desulfurization wastewater pipeline with sludge mixing kettle.The utility model purification process technique is simple, and resource utilization is high, and economic cost is low, while can also solve sludge with low moisture content pipeline difficulty, the technical problem of sludge treatment work on the spot environment difference.
Description
Technical field
The utility model relates to Waste Disposal Technology fields, more particularly to the connection of a kind of municipal sludge and desulfurization wastewater
Close processing system.
Background technique
Contain a large amount of organic matter and nutriment in municipal sludge, be directly discharged into water, can largely consume in water body
Oxygen leads to water quality deterioration or eutrophication, seriously affects the ecological balance in water body；In addition the heavy metal in sludge, cause
The poisonous and harmful substances such as germ, are directly discharged into water, and serious pollution, and then contaminated soil and crops can be caused to water source,
The mankind are married again by biological chain.
At present the processing method of municipal sludge substantially there are three types of, landfill method, compost utilization and burning, landfill method need a large amount of
Landfill place, using limit it is very big, in today of urban land an inch of land is an inch of gold, be gradually eliminated；Compost utilization method is straight
It connects for soil improvement, but consumption is small, the poisonous and harmful substance in sludge will cause the pollution of soil and groundwater；In recent years
It is incineration method come what is be most widely used, organic matter can be made all to be carbonized, sludge volume can be reduced to the maximum extent, it can volume reduction
70-90% is the method that current sludge treatment is most thorough, quick and economic.
There are two types of existing sludge incineration modes, and one is auxiliary fuel is added after dehydration directly to burn, one is sludge
It is burned after desiccation, both modes require relatively independent burning processing system, either burn or dry, require volume
Outer heat source supply, energy consumption is larger, and processing cost is high.
Contain a large amount of sulfide in the flue gas that coal unit generates, it is necessary to carry out desulfurization process and reach ability after discharge standard
It can be discharged into atmosphere, at present in the more extensive Wet Flue Gas Desulfurization Technology of application, a large amount of desulfurization wastewater can be generated.Desulfurization wastewater
Because containing suspended matter, oversaturated sulphite, sulfate and heavy metal, direct emission can cause very big bear to environment
Load needs to be further processed desulfurization wastewater, generally uses softening pretreatment, evaporative crystallization, film dense to reach zero-emission
The processing modes such as contracting are used cooperatively, and need to be equipped with dedicated processing equipment, and economic cost is high.
Utility model content
It is simple that the utility model provides a kind of purification process technique, and resource utilization is high, the low municipal sludge of economic cost
With the joint processing system of desulfurization wastewater.
The technical issues of solution is: existing sludge incineration and the processing of flue gas desulfurization waste-water are all individual technical stafves
Skill, not any intersection, each single item processing require additional processing equipment, and resource consumption is big, and economic cost is high, processing system
Occupied area of uniting is larger, and the working environment for purifying scene is complicated.
In order to solve the above technical problems, the utility model adopts the following technical solution:
The joint processing system of the utility model municipal sludge and desulfurization wastewater, including sludge mixing kettle, heat-exchanger rig, circle
Disk drying machine and coal-burning boiler；
The discharge port of sludge mixing kettle is connected by the cold burden import of pipeline and heat-exchanger rig, the hot material outlet of heat-exchanger rig
It is connect by pipeline with disc dryer, the discharge port of disc dryer passes through coal-fired transmission device and connect with coal-burning boiler, circle
Disk drying machine is connected by the hot material import of high temperature exhaust steam pipeline and heat-exchanger rig, and the cold burden outlet of heat-exchanger rig is weary by low temperature
Steam pipe road is connect with coal-burning boiler, and the exhanst gas outlet of coal-burning boiler is connected to by flue with desulfurizer, and desulfurizer is logical
Desulfurization wastewater pipeline is crossed to be connected to sludge mixing kettle.
The joint processing system of the utility model municipal sludge and desulfurization wastewater, further, the fire coal transmission device
Coal-grinding apparatus is additionally provided between coal-burning boiler.
The joint processing system of the utility model municipal sludge and desulfurization wastewater, further, the high temperature exhaust steam pipeline
On be additionally provided with dust-extraction unit for removing impurity in dry steam exhaust.
The joint processing system of the utility model municipal sludge and desulfurization wastewater, further, the disc dryer
Heat source import is connected to main steam header road, is passed through the saturated vapor of 0.5-0.6MPa, with sludge indirect heat exchange.
The joint processing system of the utility model municipal sludge and desulfurization wastewater, further, the disc dryer are logical
It crosses drain recovery pipeline to connect with coal-burning boiler, the interface of disc dryer and drain recovery pipeline is provided with steam drainage
Valve.
The joint processing system of the utility model municipal sludge and desulfurization wastewater, further, the desulfurization wastewater pipeline
On be provided with desulfurization wastewater pump, desulfurization wastewater pump sludge mixing kettle between desulfurization wastewater pipeline on is provided with flow adjust
Valve.
The joint processing system of the utility model municipal sludge and desulfurization wastewater compared with prior art, has following beneficial
Effect:
The joint processing system simple process of the utility model municipal sludge and desulfurization wastewater, at the burning of municipal sludge
Reason system and coal-fired incineration system and desulphurization system contact as the circulating treating system of an entirety, and desulfurization wastewater and municipal administration is dirty
Mud is disposed simultaneously, simplifies desulfurization wastewater and the respective cleaning treatment system of municipal sludge, reduces desulfurization wastewater and municipal administration is dirty
The purification cost of disposal of mud, substantially increases utilization rate of equipment and installations；In entire processing system, without the row of any waste
Out, it is truly realized zero-emission, it is environmentally protective.
The utility model mixes sludge with low moisture content with desulfurization wastewater, the weak base for forming municipal sludge in desulfurization wastewater
It being stood in property environment, broken wall occurs for the microorganism, plant and animal residue in sludge, the burning completion rate of sludge is substantially increased,
The energy consumption burned needed for completing is reduced, meanwhile, the energy in municipal sludge is recycled, " fire coal " as low heat value uses.
The utility model and the mixed high water content sludge of desulfurization wastewater are advanced before entering disc dryer drying
Enter heat-exchanger rig, generates heat exchange with the steam exhaust that disc dryer generates, carry out sludge preheating, make full use of the latent of dry steam exhaust
Heat reduces the usage amount of the high temperature saturated vapor of disc dryer, improves the thermal efficiency for the treatment of process.
The joint processing system of the municipal sludge of the utility model and desulfurization wastewater is made furtherly with reference to the accompanying drawing
It is bright.
Detailed description of the invention
Fig. 1 is the schematic diagram of the joint processing system of the utility model municipal sludge and desulfurization wastewater.
Appended drawing reference:
1- sludge mixing kettle；2- heat-exchanger rig；3- disc dryer；4- fire coal transmission device；5- coal-grinding apparatus；6- is coal-fired
Boiler；7- dust-extraction unit；8- desulfurizer；91- high temperature exhaust steam pipeline；92- drain recovery pipeline；93- steam trap；94-
Low-temperature steam exhaust pipeline；95- desulfurization wastewater pipeline；96- desulfurization wastewater pump；97- flow control valve.
Specific embodiment
As shown in Figure 1, the joint processing system of the utility model municipal sludge and desulfurization wastewater includes sludge mixing kettle 1,
Heat-exchanger rig 2, disc dryer 3 and coal-burning boiler 6.
The discharge port of sludge mixing kettle 1 is connect by pipeline with the cold burden import of heat-exchanger rig 2, the hot material of heat-exchanger rig 2
Outlet is connect by pipeline with disc dryer 3, and the discharge port of disc dryer 3 passes through coal-fired transmission device 4 and coal-burning boiler 6
Connection, is additionally provided with coal-grinding apparatus 5 between coal-fired transmission device 4 and coal-burning boiler 6, can not only crush raw coal, but also can be with
Dry sludge is uniformly mixed with the fire coal of crushing, convenient for the abundant burning of sludge；The heat source import and steam of disc dryer 3
Main pipeline connection, is passed through the saturated vapor of 0.5-0.6MPa, and with sludge indirect heat exchange, disc dryer 3 passes through high temperature steam exhaust pipe
Road 91 is connect with the hot material import of heat-exchanger rig 2, is additionally provided in high temperature exhaust steam pipeline 91 for removing the dust in steam exhaust, drift
The dust-extraction unit 7 of the impurity such as floating object, disc dryer 3 are connect by drain recovery pipeline 92 with coal-burning boiler 6, disc dryer
3 are provided with steam trap 93 with the interface of drain recovery pipeline 92, and the on-condensible gas generated in disc dryer 3 is sent into combustion
Coal burning boiler 6 is used as secondary air combustion aid；The cold burden outlet of heat-exchanger rig 2 is connect by low-temperature steam exhaust pipeline 94 with coal-burning boiler 6, will
The low temperature on-condensible gas generated in heat-exchanger rig 2 is sent directly into coal-burning boiler 6 and is used as secondary air combustion aid, and the condensed water of generation is straight
Run in into sewage treatment pipeline, is sent into sewage treatment plant and carries out further purified treatment；The exhanst gas outlet of coal-burning boiler 6 passes through cigarette
Feed channel is connected to desulfurizer 8, and desulfurizer 8 is connected to by desulfurization wastewater pipeline 95 with sludge mixing kettle 1, desulfurization wastewater pipe
It is provided with desulfurization wastewater pump 96 on road 95, is arranged on the desulfurization wastewater pipeline 95 between desulfurization wastewater pump 96 and sludge mixing kettle 1
There is flow control valve 97.
Agitating device is had in sludge mixing kettle 1, municipal sludge can be quickly uniformly mixed with desulfurization wastewater.
The processing method of the joint processing system of the utility model municipal sludge and desulfurization wastewater, comprising the following steps:
Step 1: the municipal sludge of moisture content 50-60% pours into the quenched pond of mixing, it is de- with being discharged in desulfurizer 8
The mixing of sulphur waste water, forms the high water content sludge of moisture content 70-80%；
During mixing is with standing, desulfurization wastewater formed under weakly alkaline environment, it is microorganism in sludge, dynamic
Broken wall occurs for plant residue, substantially increases the content of the Free water in sludge, and energy consumption needed for reducing desiccation has simultaneously
There is deodorization；On-condensible gas caused by dry is sent into boiler secondary air piping, and calorific value therein is recycled after burning；
Step 2: after mixing evenly by high water content sludge, being sent into disc dryer 3, carried out with saturation hot steam indirect
Heat exchange, high water content sludge heat absorption increasing enthalpy constantly evaporate wet part, form the drying sludge of moisture content 30-40%；
Step 3: after dry sludge and raw coal co-grinding, into coal-burning boiler 6 in sufficiently burn；
Step 4: the high temperature steam exhaust generated in drying process enters heat-exchanger rig 2, with the High water cut by heat-exchanger rig 2
Rate sludge carries out indirect heat exchange, preheats high water content sludge, so that its temperature is got a promotion, make full use of the heat of high temperature steam exhaust
Amount reduces the usage amount of the high temperature saturated vapor of disc dryer 3, improves the thermal efficiency for the treatment of process；
The condensed water that heat exchange generates is directly discharged into sewage treatment pipeline, is sent into sewage treatment plant and carries out at further purification
Reason；
The low temperature on-condensible gas that heat exchange generates is sent into coal-burning boiler 6 and is used as secondary air combustion aid；
High temperature steam exhaust is dusted processing, dust, floating material in steam exhaust of going out etc. are miscellaneous before entering heat-exchanger rig 2
Matter；
Step 5: simultaneously, the hydrophobic steam trap 93 that passes through of steam used connects drain recovery pipeline in drying process
92 are used as boiler replenishing water reuse；
Step 6: coal-burning boiler 6 burns the flue gas progress desulfurizing and purifying processing generated in step 3, generated in purification process
Desulfurization wastewater pump 96 enter to mix in quenched pond, be used for mixed diluting municipal sludge.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (6)
1. the joint processing system of municipal sludge and desulfurization wastewater, it is characterised in that: including sludge mixing kettle (1), heat-exchanger rig
(2), disc dryer (3) and coal-burning boiler (6)；
The discharge port of sludge mixing kettle (1) is connect by pipeline with the cold burden import of heat-exchanger rig (2), the heat of heat-exchanger rig (2)
Material outlet connect by pipeline with disc dryer (3), the discharge port of disc dryer (3) by fire coal transmission device (4) and
Coal-burning boiler (6) connection, disc dryer (3) are connect by high temperature exhaust steam pipeline (91) with the hot material import of heat-exchanger rig (2),
The cold burden outlet of heat-exchanger rig (2) is connect by low-temperature steam exhaust pipeline (94) with coal-burning boiler (6), the flue gas of coal-burning boiler (6)
Outlet is connected to by flue with desulfurizer (8), and desulfurizer (8) passes through desulfurization wastewater pipeline (95) and sludge mixing kettle
(1) it is connected to.
2. the joint processing system of municipal sludge according to claim 1 and desulfurization wastewater, it is characterised in that: the fire coal
Coal-grinding apparatus (5) are additionally provided between transmission device (4) and coal-burning boiler (6).
3. the joint processing system of municipal sludge according to claim 1 and desulfurization wastewater, it is characterised in that: the high temperature
The dust-extraction unit (7) for removing impurity in dry steam exhaust is additionally provided in exhaust steam pipeline (91).
4. the joint processing system of municipal sludge according to claim 1 and desulfurization wastewater, it is characterised in that: the disk
The heat source import of drying machine (3) is connected to main steam header road.
5. the joint processing system of municipal sludge according to claim 1 and desulfurization wastewater, it is characterised in that: the disk
Drying machine (3) is connect by drain recovery pipeline (92) with coal-burning boiler (6), disc dryer (3) and drain recovery pipeline
(92) interface is provided with steam trap (93).
6. the joint processing system of municipal sludge according to claim 1 and desulfurization wastewater, it is characterised in that: the desulfurization
Desulfurization wastewater pump (96) is provided on waste pipe (95), it is useless that desulfurization wastewater pumps the desulfurization between (96) and sludge mixing kettle (1)
Flow control valve (97) are provided on waterpipe (95).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821691257.6U CN209583949U (en) | 2018-10-18 | 2018-10-18 | The joint processing system of municipal sludge and desulfurization wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821691257.6U CN209583949U (en) | 2018-10-18 | 2018-10-18 | The joint processing system of municipal sludge and desulfurization wastewater |
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| CN209583949U true CN209583949U (en) | 2019-11-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293212A (en) * | 2018-10-18 | 2019-02-01 | 南京龙源环保有限公司 | The joint processing system and processing method of municipal sludge and desulfurization wastewater |
| CN112028442A (en) * | 2020-07-16 | 2020-12-04 | 北京国电龙源环保工程有限公司 | Sludge drying system and drying method utilizing multi-section type heat energy in stepped mode |
| CN115403244A (en) * | 2022-08-31 | 2022-11-29 | 西安热工研究院有限公司 | System and method for cooperative treatment and utilization of municipal sludge and desulfurization wastewater |
-
2018
- 2018-10-18 CN CN201821691257.6U patent/CN209583949U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293212A (en) * | 2018-10-18 | 2019-02-01 | 南京龙源环保有限公司 | The joint processing system and processing method of municipal sludge and desulfurization wastewater |
| CN112028442A (en) * | 2020-07-16 | 2020-12-04 | 北京国电龙源环保工程有限公司 | Sludge drying system and drying method utilizing multi-section type heat energy in stepped mode |
| CN115403244A (en) * | 2022-08-31 | 2022-11-29 | 西安热工研究院有限公司 | System and method for cooperative treatment and utilization of municipal sludge and desulfurization wastewater |
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| GR01 | Patent grant | ||
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Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Patentee after: Guodian Ledong Power Generation Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee before: Guodian Ledong Power Generation Co.,Ltd. |
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