CN212833402U - Sludge drying system - Google Patents
Sludge drying system Download PDFInfo
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- CN212833402U CN212833402U CN202020782284.5U CN202020782284U CN212833402U CN 212833402 U CN212833402 U CN 212833402U CN 202020782284 U CN202020782284 U CN 202020782284U CN 212833402 U CN212833402 U CN 212833402U
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Abstract
The utility model relates to a sludge drying system, including the disc dryer, disc dryer one end is the feed end, and the other end is the discharge end, the disc dryer is provided with wet sludge bin at the feed end, the disc dryer sets up solid discharge gate at the discharge end lower extreme, and the upper end sets up gas discharge gate, solid discharge gate one end is provided with the totally enclosed conveyer, gas discharge gate one end is provided with the gas treatment subassembly. The utility model has the characteristics of the mummification is fast, and environmental protection more is more convenient etc.
Description
Technical Field
The utility model belongs to the technical field of sludge treatment technique and specifically relates to a sludge drying system is related to.
Background
At present, along with the continuous development of economy and the continuous promotion of urbanization in China, the sewage treatment capacity is continuously improved, the sludge amount of the final product of sewage treatment is also continuously increased, and the yield (the water content is 80%) of only municipal sludge in China reaches 6000 to 9000 ten thousand tons in 2020. Sludge is an extremely complex heterogeneous body consisting of organic residues, inorganic particles, bacterial cells, colloids and the like, and the sludge needs to be subjected to deep dehydration and stabilization treatment in order to avoid secondary pollution. China has large population density and short land resources, the traditional extensive treatment methods such as landfill and the like are difficult to be continuously carried out, and the harmless treatment and disposal of sludge are key difficult problems in the field of environmental protection. The sludge incineration technology is the most thorough treatment method recognized at home and abroad, and is a necessary way for reducing and harmlessly treating biochemical sludge. The calorific value of the sludge is lower before the sludge is not dried and reduced, a large amount of fuel needs to be heated in the direct incineration, the incineration operation cost is higher, the popularization and the application of the incineration process are greatly hindered, and the mature, efficient and energy-saving sludge drying technology linked front and rear section process is urgently needed in the field of sludge harmless disposal at present.
The prior patent grant publication number: CN106517723B A novel sludge drying system discloses a novel sludge drying system, which comprises a main box body and an evaporator positioned outside the main box body, wherein a multi-stage sludge conveying system, a heat pump system, a heat exchange system and a plurality of condensers are arranged in the main box body, and the heat pump system and the heat exchange system are connected with the evaporator through pipelines; the multi-stage sludge conveying system comprises conveying units which are arranged in a multi-layer staggered mode in the vertical direction; the heat pump system comprises an output pipeline led out by the evaporator, a return pipeline returning to the evaporator, a compressor arranged on the output pipeline and an expansion valve arranged on the return pipeline, and the heat exchange system comprises a dry and cold air discharge pipeline led out by the evaporator and a wet and hot air return pipeline returning to the evaporator; a condensed water discharge pipeline is led out of the evaporator; a sludge feeding hole is arranged at the corresponding position above the conveying unit at the top layer on the main box body.
The above prior art solutions have the following drawbacks: the working parts which mainly work in the sludge drying system are positioned in the main box body, so that the sludge drying system is low in drying speed and is not suitable for drying a large amount of sludge.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the prior art, the utility model aims at providing a sludge drying system which can dry a large amount of sludge.
The above object of the present invention can be achieved by the following technical solutions: the utility model provides a sludge drying system, includes the disc dryer, disc dryer one end is the feed end, and the other end is the discharge end, the disc dryer is provided with wet sludge warehouse at the feed end, the disc dryer sets up solid discharge gate at the discharge end lower extreme, and the upper end sets up gas discharge gate, solid discharge gate one end is provided with the totally enclosed conveyer, gas discharge gate one end is provided with the gas treatment subassembly.
Through adopting above-mentioned technical scheme, when this sludge drying system began the during operation, pour pending mud into wet sludge warehouse, save in wet sludge warehouse, when reaching certain volume, mud gets into the disc drier by wet sludge warehouse, after the disc drier is dry, partly dry by solid discharge gate discharge after to appointed humidity, and carry by totally enclosed conveyer, another part is handled in the gas that is evaporated gets into the gas treatment subassembly by gas discharge gate, in this scheme, drying rate is fast, and is effectual, be fit for the dry a large amount of mud.
The utility model discloses further set up to: the gas treatment subassembly including communicate in gas discharge mouth's dust shaker in advance, communicate in the condenser of dust shaker upper end in advance, communicate in the fan of condenser upper end, the dust shaker lower extreme sets up row cinder notch in advance, the condenser lower extreme sets up condensation waste water bin outlet.
Through adopting above-mentioned technical scheme, in getting into the dust catcher in advance by the exhaust high-temperature gas in the disc dryer, hold back the tiny granule that contains in the high-temperature gas to discharge through the row's cinder notch, the high-temperature gas cools down the condensation in getting into the condenser again, and discharges from condensation waste water bin outlet with it. The scheme enables high-temperature gas to be better treated, reduces the discharge of waste gas and protects the environment.
The utility model discloses further set up to: an exhaust pipeline is arranged at the upper end of the wet sludge bin and communicated with the fan, and a deodorization system is arranged at one end of the fan.
Volatilize harmful gas to the environment when through adopting above-mentioned, if direct emission in the air, cause environmental pollution easily, in this scheme, set up exhaust duct in wet mud storehouse upper end to communicate exhaust duct's the other end in the fan, set up deodorizing system in fan one side, make no matter there is the gas of disc desiccator one end inflow, still by the direct combustion gas in wet mud storehouse, can both handle emission again in deodorizing system department, thereby the environmental protection.
The utility model discloses further set up to: and a sludge pump is arranged at the lower end of the wet sludge bin.
Through adopting above-mentioned technical scheme, when mud gets into the disc dryer by wet mud storehouse, mud itself is thick form, and density is great at first, and secondly is difficult for flowing, so through the gravity of mud itself or simple pushing and extruding make mud get into the disc dryer that can not be fine well coherent, in this scheme, through setting up the sludge pump for the inflow speed of mud becomes fast, thereby accelerates the mummification speed.
The utility model discloses further set up to: the wet sludge bin is characterized in that a sliding frame is connected to the inner bottom wall of the wet sludge bin in a sliding mode, and a hydraulic cylinder for driving the sliding frame to slide is arranged at the side end of the wet sludge bin.
Through adopting above-mentioned technical scheme, the consistency of mud is higher, pours the back into from wet sludge storehouse upper end when mud, and a large amount of mud will form the gas arch at the position of unloading to make disc drier idle running, and then influence mummification efficiency, in this scheme, set up the balladeur train by pneumatic cylinder drive at wet sludge storehouse bottom wall, through regularly sliding the balladeur train, reduce the production that the mud gas arch, make mud can be in the more coherent entering disc drier, thereby promote mummification rate.
The utility model discloses further set up to: the upper end of the wet sludge bin is connected with a bin cover in a sliding manner.
Through adopting above-mentioned technical scheme, through set up the cang gai in wet mud storehouse upper end, when pouring mud into, open the cang gai, close the cang gai at ordinary times to reduce the harmful gas departure in the wet mud storehouse, thereby the environmental protection sets up the cang gai simultaneously and connects for opening and closing of cang gai are more convenient.
The utility model discloses further set up to: the inner and outer walls of the wet sludge bin and the bin cover are coated with anticorrosive coatings.
Through adopting above-mentioned technical scheme, at wet sludge warehouse and cang gai inside and outside wall coating anticorrosive coating for this wet sludge warehouse can not corroded when holding the mud that has the corrosivity, thereby prolongs its life.
The utility model discloses further set up to: the upper end of the wet sludge bin is provided with an ultrasonic material level meter on one side of the bin cover.
Through adopting above-mentioned technical scheme, under the condition of long-term storage mud in the wet sludge storehouse, its inside is usually full of harmful gas, and the mud storage condition in the wet sludge storehouse is usually not known to the way, on the one hand can not open the cang gai easily, causes harmful gas's leakage easily, on the other hand is under the condition of the storage situation of unclear mud, causes disc drier idle running easily, through setting up the ultrasonic wave charge level indicator in this scheme to know the high position of mud, thereby decide whether open the cang gai and add material.
To sum up, the utility model discloses a beneficial technological effect does:
1. the sludge drying system has the advantages that the sludge drying speed is higher by separately arranging all parts, storing the sludge in the wet sludge bin and drying the sludge by the disc dryer;
2. the sludge drying system is more environment-friendly by arranging the gas treatment component and connecting the exhaust pipe to one end of the fan at the upper end of the wet sludge bin;
3. the bin cover is connected to the upper end of the wet sludge bin in a sliding mode, and the ultrasonic material level meter is arranged on one side of the bin cover, so that the sludge drying system is more convenient to operate.
Drawings
FIG. 1 is a flow diagram of a sludge drying system;
fig. 2 is an enlarged view of fig. 1 at a.
In the figure: 1. a wet sludge bin; 2. a disc dryer; 3. a fully-sealed conveyor; 4. a gas processing assembly; 5. a pre-deduster; 6. a condenser; 7. a fan; 8. a feeding end; 9. a discharge end; 10. a feed inlet; 11. a bin cover; 12. an ultrasonic level gauge; 13. an exhaust duct; 14. a hydraulic cylinder; 15. a carriage; 16. a first material pipe; 17. a sludge pump; 18. a heat source inlet; 19. a gas outlet; 20. a solid discharge port; 21. a second material pipe; 22. a slag discharge port; 23. a third material pipe; 24. a condensed wastewater discharge port; 25. a fourth material pipe; 26. a deodorizing system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, a sludge drying system sequentially comprises a wet sludge bin 1, a disc dryer 2 and a full-sealed conveyor 3 according to the working steps, wherein a gas treatment component 4 is arranged at one end of a gas discharge hole 19, the gas treatment component 4 comprises a pre-deduster 5, a condenser 6 and a fan 7, one end of the disc dryer 2 is a feed end 8, and the other end of the disc dryer is a discharge end 9.
Referring to fig. 1 and 2, wet sludge bin 1 is semi-closed steel construction, by being no less than 8mm thick steel plate and shaped steel welding, and its itself is the cylinder tube-shape, and feed inlet 10 has been seted up to wet sludge bin 1 upper end, and wet sludge bin 1 slides in feed inlet 10 one side and is connected with cang gai 11 in the upper end, and when cang gai 11 slided to feed inlet 10 one side, just cover feed inlet 10 sealedly.
The inner and outer surfaces of the wet sludge bin 1 and the bin cover 11 are coated with anticorrosive coatings, the anticorrosive coatings are epoxy anticorrosive coatings, the total thickness of paint films is 180 mu m (dry), and the rust removal grade is Sa2.5 grade.
The welding of 1 upper end in wet sludge bin has exhaust duct 13 in ultrasonic wave charge level indicator 12 one side, and this exhaust duct 13 one end communicates in wet sludge bin 1, and the other end welding is in fan 7 one end for harmful gas accessible exhaust duct 13 in the wet sludge bin 1 discharges to fan 7, and discharges.
The side wall of the wet sludge bin 1 is connected with a hydraulic cylinder 14 through a bolt, an output shaft of the hydraulic cylinder 14 penetrates through the side wall of the wet sludge bin 1, the bottom wall of the wet sludge bin 1 is connected with a sliding frame 15 through a bolt, and the sliding frame 15 is driven by the hydraulic cylinder 14 to slide on the upper end of the bottom wall of the wet sludge bin 1.
A first material pipe 16 is integrally arranged at the lower end of the wet sludge bin 1, and the other end of the first material pipe 16 is fixed at the upper end of the disc dryer 2 and close to the feeding end 8 through a bolt, so that the wet sludge bin 1 is communicated with the disc dryer 2. The side end of the first material pipe 16 is connected with a sludge pump 17 through a bolt, and the sludge pump 17 is a plunger pump, so that sludge is pumped into the disc dryer 2.
The disc dryer 2 is integrally provided with a heat source inlet 18 at the feed end 8, and the heat source inlet 18 introduces hot steam into the disc dryer 2 to be heated, thereby performing drying. The disc dryer 2 is the super disc dryer 2 technology, the latest technology of Mitsubishi, Japan, and the core equipment manufacturer is Tiantong Gingji machine technology, Inc., model number SDK-370D, made of 304 stainless steel.
The disc dryer 2 is integrally provided with a gas discharge port 19 at the upper end of the discharge end 9, a solid discharge port 20 is integrally arranged at the lower end of the discharge end, and the lower end of the solid discharge port 20 is communicated with the fully-sealed conveyor 3, so that sludge dried by the disc dryer 2 is discharged into the fully-sealed conveyor 3 through the solid discharge port 20 and conveyed.
A second material pipe 21 is connected to a gas discharge port 19 at the upper end of the disc dryer 2 through a bolt, the second material pipe 21 is fixed to the side end of the pre-dust collector 5 through a bolt, the disc dryer 2 is communicated with the pre-dust collector 5, the pre-dust collector 5 is a cyclone dust collector which is a model TDG-PV, and a slag discharge port 22 is formed in the lower end of the pre-dust collector 5.
The upper end of the pre-dust collector 5 is connected with a third material pipe 23 through a bolt, the other end of the third material pipe 23 is fixed at the side end of the condenser 6 through a bolt, so that the pre-dust collector 5 is communicated with the condenser 6, and high-temperature gas in the pre-dust collector 5 enters the condenser 6 along the third material pipe 23.
The model of the condenser 6 is TDG-RN-150, a condensation wastewater discharge port 24 is formed in the side end of the condenser 6, high-temperature gas is discharged from the condensation wastewater discharge port 24 after being condensed, a fourth material pipe 25 is integrally arranged at the upper end of the condenser 6, the other end of the fourth material pipe 25 is connected to one end of the fan 7 through a bolt, a deodorization system 26 is communicated with the other end of the fan 7, and the fan 7 sucks gas passing through the fourth material pipe 25 and the exhaust pipeline 13 into the deodorization system 26 for purification and discharge.
The implementation principle of the embodiment is as follows:
when the sludge drying system starts to work, sludge to be treated is poured into the wet sludge bin 1 and is stored in the wet sludge bin 1, when a certain amount of sludge is reached, the sludge is pumped into the disc dryer 2 from the wet sludge bin 1 through the sludge pump 17, after the sludge is dried by the disc dryer 2, a part of the sludge is dried to a specified humidity and is discharged from the solid discharge port 20 and is conveyed by the fully-sealed conveyor 3, the other part of the sludge is evaporated gas high-temperature gas firstly enters the pre-dust collector 5, fine particles contained in the high-temperature gas are intercepted and are discharged through the slag discharge port 22, the high-temperature gas enters the condenser 6 for cooling and condensation and is discharged from the condensed wastewater discharge port 24, and the residual gas and the gas flowing into the exhaust pipe from the upper end of the wet sludge bin 1 are uniformly sent into the deodorization system 26 through the fan 7 for treatment and then are discharged into the air.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a sludge drying system, includes disc dryer (2), its characterized in that: disc desiccator (2) one end is feed end (8), and the other end is discharge end (9), disc desiccator (2) are provided with wet sludge storehouse (1) in feed end (8), disc desiccator (2) set up solid discharge gate (20) at discharge end (9) lower extreme, and the upper end sets up gas discharge gate (19), solid discharge gate (20) one end is provided with totally enclosed conveyer (3), gas discharge gate (19) one end is provided with gas treatment subassembly (4).
2. The sludge drying system of claim 1, wherein: gas treatment subassembly (4) including communicate in gas discharge mouth (19) dust shaker (5), communicate in advance condenser (6) of dust shaker (5) upper end, communicate in fan (7) of condenser (6) upper end, dust shaker (5) lower extreme sets up row cinder notch (22) in advance, condenser (6) lower extreme sets up condensation waste water bin outlet (24).
3. The sludge drying system of claim 2, wherein: the wet sludge bin (1) upper end be provided with exhaust duct (13) communicate in fan (7), fan (7) one end is provided with deodorization system (26).
4. The sludge drying system of claim 3, wherein: the lower end of the wet sludge bin (1) is provided with a sludge pump (17).
5. The sludge drying system of claim 4, wherein: the inner bottom wall of the wet sludge bin (1) is connected with a sliding frame (15) in a sliding mode, and a hydraulic cylinder (14) for driving the sliding frame (15) to slide is arranged at the side end of the wet sludge bin (1).
6. The sludge drying system of claim 5, wherein: the upper end of the wet sludge bin (1) is connected with a bin cover (11) in a sliding manner.
7. The sludge drying system of claim 6, wherein: the inner and outer walls of the wet sludge bin (1) and the bin cover (11) are coated with anticorrosive coatings.
8. The sludge drying system of claim 7, wherein: the upper end of the wet sludge bin (1) is provided with an ultrasonic material level meter (12) on one side of the bin cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782284.5U CN212833402U (en) | 2020-05-12 | 2020-05-12 | Sludge drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782284.5U CN212833402U (en) | 2020-05-12 | 2020-05-12 | Sludge drying system |
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| CN212833402U true CN212833402U (en) | 2021-03-30 |
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| CN202020782284.5U Active CN212833402U (en) | 2020-05-12 | 2020-05-12 | Sludge drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830988A (en) * | 2021-10-25 | 2021-12-24 | 北京华能长江环保科技研究院有限公司 | Sludge drying device and sludge drying method using renewable power |
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2020
- 2020-05-12 CN CN202020782284.5U patent/CN212833402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830988A (en) * | 2021-10-25 | 2021-12-24 | 北京华能长江环保科技研究院有限公司 | Sludge drying device and sludge drying method using renewable power |
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